A systematic review of the quality of conduct and reporting of systematic reviews and meta-analyses in paediatric surgery

PLoS ONE

Volumn 12, Issue 4, 2017, Pages

  Cullis, Paul Stephen ^a,b   Gudlaugsdottir, Katrin ^a   Andrews, James ^a,b  

^a ROYAL HOSPITAL FOR CHILDREN   (United Kingdom)

^b UNIVERSITY OF GLASGOW   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

EMBASE; EXPLORATORY RESEARCH; HUMAN; MEDLINE; META ANALYSIS; PEDIATRIC SURGERY; PRACTICE GUIDELINE; REGISTRATION; STATISTICAL MODEL; SURGERY; SYSTEMATIC REVIEW; UNIVARIATE ANALYSIS; WEB OF SCIENCE; CHILD; PEDIATRICS;

CHILD; HUMANS; PEDIATRICS; SURGICAL PROCEDURES, OPERATIVE;

EID: 85017143659     PISSN: None     EISSN: 19326203     Source Type: Journal    
DOI: 10.1371/journal.pone.0175213     Document Type: Review

References (181)

1. Moher D. Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement. Annals of Internal Medicine Ann Intern Med. 2009; 151(4):264. PMID: 19622511
2. Shea BJ, Hamel C, Wells GA, Bouter LM, Kristjansson E, Grimshaw J, et al. AMSTAR is a reliable and valid measurement tool to assess the methodological quality of systematic reviews. Journal of Clinical Epidemiology. 2009; 62(10):1013-20. https://doi.org/10.1016/j.jclinepi.2008.10.009 PMID: 19230606
3. Shea BJ, Bouter LM, Peterson J, Boers M, Andersson N, Ortiz Z, et al. External Validation of a Measurement Tool to Assess Systematic Reviews (AMSTAR). PLoS ONE. 2007; 2(12).
4. Macrae D. Conducting clinical trials in pediatrics. Critical Care Medicine. 2009; 37(S).
5. Snoek KG, Capolupo I, van Rosmalen J, Hout Lde J, Vijfhuize S, Greenough A, et al. Conventional mechanical ventilation versus high-frequency oscillatory ventilation for congenital diaphragmatic hernia: a randomized clinical trial (the VICI-trial). Annals of Surgery. 2016; 263(5):867-874. https://doi. org/10.1097/SLA.0000000000001533 PMID: 26692079
6. Morris RK, Malin GL, Quinlan-Jones E, Middleton LJ, Diwakar L, Hemming K, et al. The Percutaneous shunting in Lower Urinary Tract Obstruction (PLUTO) study and randomised controlled trial: evaluation of the effectiveness, cost-effectiveness and acceptability of percutaneous vesicoamniotic shunting for lower urinary tract obstruction. Health Technol Assess. 2013; 17(59):1-232. https://doi.org/10.3310/ hta17590 PMID: 24331029
7. Rees CM, Eaton S, Kiely EM, Wade AM, McHugh K, Pierro A. Peritoneal Drainage or Laparotomy for Neonatal Bowel Perforation?: A Randomized Controlled Trial. Annals of surgery. 2008; 248(1):44-51. https://doi.org/10.1097/SLA.0b013e318176bf81 PMID: 18580206
8. Moss RL, Dimmitt RA, Barnhart DC, Sylvester KG, Brown RL, Powell DM, et al. Laparotomy versus peritoneal drainage for necrotizing enterocolitis and perforation. New England Journal of Medicine. 2006; 354:2225-34. https://doi.org/10.1056/NEJMoa054605 PMID: 16723614
9. Allin B, Aveyard N, Campion-Smith T, Floyd E, Kimpton J, Swarbrick K, et al. What Evidence Underlies Clinical Practice in Paediatric Surgery? A Systematic Review Assessing Choice of Study Design. PLOS ONE. 2016; 11(3).
10. OCEBM Levels of Evidence Working Group [Internet]. Oxford: "The Oxford Levels of Evidence 2". Oxford Centre for Evidence-Based Medicine. Available from: http://www.cebm.net/index.aspx?o= 5653
11. Eaton S. Combining data from multiple studies: An introduction to meta-analysis in paediatric surgery. Journal of Pediatric Surgery. 2013; 48(2):281-7. https://doi.org/10.1016/j.jpedsurg.2012.11.004PMID: 23414852
12. Adie S, Ma D, Harris IA, Naylor JM, Craig JC. Quality of Conduct and Reporting of Meta-analyses of Surgical Interventions. Annals of Surgery. 2015; 261(4):685-94. https://doi.org/10.1097/SLA.0000000000000836 PMID: 25575252
13. McGee RG, Craig JC, Rogerson TE, Webster AC. Systematic reviews of surgical procedures in children: Quantity, coverage and quality: Reviews of surgical procedures. Journal of Paediatrics and Child Health. 2013; 49(4):319-24. https://doi.org/10.1111/jpc.12156 PMID: 23530924
14. Autorino R, Eden C, El-Ghoneimi A, Guazzoni G, Buffi N, Peters CA, et al. Robot-assisted and Laparoscopic Repair of Ureteropelvic Junction Obstruction: A Systematic Review and Meta-analysis. European Urology. 2014; 65(2):430-52. https://doi.org/10.1016/j.eururo.2013.06.053 PMID: 23856037
15. Anon. Certification Guidelines for Paediatric Surgery. Joint Committee on Surgical Training. 2016.Available from: http://www.jcst.org/quality-assurance/documents/certification-guidelines/
16. Beres AL, Baird R. An institutional analysis and systematic review with meta-analysis of pneumatic versus hydrostatic reduction for pediatric intussusception. Surgery. 2013; 154(2):328-34. https://doi. org/10.1016/j.surg.2013.04.036 PMID: 23889959
17. Chua ME, Mendoza JS, Gaston MJV, Luna SL, Morales ML. Hormonal therapy using gonadotropin releasing hormone for improvement of fertility index among children with cryptorchidism: a meta-analysis and systematic review. Journal of Pediatric Surgery. 2014; 49(11):1659-67. https://doi.org/10. 1016/j.jpedsurg.2014.06.013 PMID: 25475814
18. Connor MJ, Springford LR, Kapetanakis VV, Giuliani S. Esophageal atresia and transitional care-step 1: a systematic review and meta-analysis of the literature to define the prevalence of chronic long-term problems. The American Journal of Surgery. 2015; 209(4):747-59. https://doi.org/10.1016/j. amjsurg.2014.09.019 PMID: 25605033
19. Coyle D, Puri P. Hirschsprung's disease in children with Mowat-Wilson syndrome. Pediatric Surgery International. 2015; 31(8):711-7. https://doi.org/10.1007/s00383-015-3732-x PMID: 26156877
20. D'Antonio F, Virgone C, Rizzo G, Khalil A, Baud D, Cohen-Overbeek TE, et al. Prenatal Risk Factors and Outcomes in Gastroschisis: A Meta-Analysis. Pediatrics. 2015; 136(1):e159-69. https://doi.org/ 10.1542/peds.2015-0017 PMID: 26122809
21. Das A, Shah PS. Octreotide for the treatment of chylothorax in neonates. In: The Cochrane Collaboration, editor. Cochrane Database of Systematic Reviews [Internet]. Chichester, UK: John Wiley & Sons, Ltd; 2010 [cited 2016 Jul 5].
22. Dellenmark-Blom M, Chaplin JE, Gatzinsky V, Jönsson L, Abrahamson K. Health-related quality of life among children, young people and adults with esophageal atresia: a review of the literature and recommendations for future research. Quality of Life Research. 2015; 24(10):2433-45. https://doi.org/10. 1007/s11136-015-0975-x PMID: 25829227
23. Dicken BJ, Sergi C, Rescorla FJ, Breckler F, Sigalet D. Medical management of motility disorders in patients with intestinal failure: a focus on necrotizing enterocolitis, gastroschisis, and intestinal atresia. Journal of Pediatric Surgery. 2011; 46(8):1618-30. https://doi.org/10.1016/j.jpedsurg.2011.04.002PMID: 21843732
24. Doodnath R, Puri P. A systematic review and meta-analysis of Hirschsprung's disease presenting after childhood. Pediatric Surgery International. 2010; 26(11):1107-10. https://doi.org/10.1007/ s00383-010-2694-2 PMID: 20725836
25. Downard CD, Renaud E, St. Peter SD, Abdullah F, Islam S, Saito JM, et al. Treatment of necrotizing enterocolitis: an American Pediatric Surgical Association Outcomes and Clinical Trials Committee systematic review. Journal of Pediatric Surgery. 2012; 47(11):2111-22. https://doi.org/10.1016/j. jpedsurg.2012.08.011 PMID: 23164007
26. Ekenze SO, Ajuzieogu OV, Nwomeh BC. Neonatal surgery in Africa: a systematic review and metaanalysis of challenges of management and outcome. The Lancet. 2015; 385:S35.
27. Espinel AG, Shah RK, McCormick ME, Krakovitz PR, Boss EF. Patient Satisfaction in Pediatric Surgical Care: A Systematic Review. Otolaryngology-Head and Neck Surgery. 2014; 150(5):739-49. https://doi.org/10.1177/0194599814527232 PMID: 24671459
28. Evans C, van Woerden HC. The effect of surgical training and hospital characteristics on patient outcomes after pediatric surgery: a systematic review. Journal of Pediatric Surgery. 2011; 46(11):2119-27. https://doi.org/10.1016/j.jpedsurg.2011.06.033 PMID: 22075342
29. Fotso Kamdem A, Nerich V, Auber F, Jantchou P, Ecarnot F, Woronoff-Lemsi M- C. Quality assessment of economic evaluation studies in pediatric surgery: A systematic review. Journal of Pediatric Surgery. 2015; 50(4):659-87. https://doi.org/10.1016/j.jpedsurg.2015.01.012 PMID: 25840083
30. Friedmacher F, Puri P. Rectal suction biopsy for the diagnosis of Hirschsprung's disease: a systematic review of diagnostic accuracy and complications. Pediatric Surgery International. 2015; 31(9):821-30. https://doi.org/10.1007/s00383-015-3742-8 PMID: 26156878
31. Grant NH, Dorling J, Thornton JG. Elective preterm birth for fetal gastroschisis. In: The Cochrane Collaboration, editor. Cochrane Database of Systematic Reviews [Internet]. Chichester, UK: John Wiley & Sons, Ltd; 2013 [cited 2016 Jul 5].
32. Grivell RM, Andersen C, Dodd JM. Prenatal versus postnatal repair procedures for spina bifida for improving infant and maternal outcomes. In: The Cochrane Collaboration, editor. Cochrane Database of Systematic Reviews [Internet]. Chichester, UK: John Wiley & Sons, Ltd; 2014 [cited 2016 Jul 5].
33. Hall NJ, Kapadia MZ, Eaton S, Chan WWY, Nickel C, Pierro A, et al. Outcome reporting in randomised controlled trials and meta-analyses of appendicitis treatments in children: a systematic review. Trials [Internet]. 2015 Dec [cited 2016 Jul 5]; 16(1). Available from: http://www.trialsjournal.com/content/16/ 1/275
34. Hofmann AD, Duess JW, Puri P. Congenital anomalies of the kidney and urinary tract (CAKUT) associated with Hirschsprung's disease: a systematic review. Pediatric Surgery International. 2014; 30 (8):757-61. https://doi.org/10.1007/s00383-014-3529-3 PMID: 24974188
35. Hofmeester MJ, Draaisma JMTH, Versteegh HP, Huibregtse ECP, van Rooij IALM, de Blaauw I. Perioperative Nutritional Management in Congenital Perineal and Vestibular Fistulas: A Systematic Review. Eur J Pediatr Surg. 2015; 25(5):389-96. https://doi.org/10.1055/s-0034-1544052 PMID: 25654619
36. Huang EY, Chen C, Abdullah F, Aspelund G, Barnhart DC, Calkins CM, et al. Strategies for the prevention of central venous catheter infections: an American Pediatric Surgical Association Outcomes and Clinical Trials Committee systematic review. Journal of Pediatric Surgery. 2011; 46(10):2000-11. https://doi.org/10.1016/j.jpedsurg.2011.06.017 PMID: 22008341
37. Lauriti G, Zani A, Aufieri R, Cananzi M, Chiesa PL, Eaton S, et al. Incidence, Prevention, and Treatment of Parenteral Nutrition-Associated Cholestasis and Intestinal Failure-Associated Liver Disease in Infants and Children A Systematic Review. Journal of Parenteral and Enteral Nutrition. 2014; 38 (1):70-85. https://doi.org/10.1177/0148607113496280 PMID: 23894170
38. Maguire SA, Upadhyaya M, Evans A, Mann MK, Haroon MM, Tempest V, et al. A systematic review of abusive visceral injuries in childhood-Their range and recognition. Child Abuse & Neglect. 2013; 37 (7):430-45.
39. Mahant S, Cohen E, Weinstein M, Wadhwa A. Video-assisted thorascopic surgery vs chest drain with fibrinolytics for the treatment of pleural empyema in children: a systematic review of randomized controlled trials. Arch Pediatr Adolesc Med. 2010; 164(2):201-3. https://doi.org/10.1001/archpediatrics. 2009.271 PMID: 20124153
40. Marshall AP, St. Peter SD, Huang EY, Yu C, Tice J, Wang L, Sharp SW, Blakely ML. Early Versus Interval Appendectomy for Children With Perforated Appendicitis: An Individual Patient Data Meta-Analysis of Randomized Trials. Journal of Surgical Research 2013; 179(2), 0022/4804.
41. Martin K, VanHouwelingen L, Bütter A. The significance of pseudoaneurysms in the nonoperative management of pediatric blunt splenic trauma. Journal of Pediatric Surgery. 2011; 46(5):933-7. https://doi.org/10.1016/j.jpedsurg.2011.02.031 PMID: 21616255
42. McAteer JP, LaRiviere CA, Drugas GT, Abdullah F, Oldham KT, Goldin AB. Influence of surgeon experience, hospital volume, and specialty designation on outcomes in pediatric surgery: a systematic review. JAMA Pediatr. 2013; 167(5):468-75. https://doi.org/10.1001/jamapediatrics.2013.25 PMID: 23529612
43. Mc Laughlin D, Friedmacher F, Puri P. The impact of Clostridium difficile on paediatric surgical practice: a systematic review. Pediatric Surgery International. 2014; 30(8):853-9. https://doi.org/10.1007/ s00383-014-3543-5 PMID: 25008231
44. Rangel SJ, Calkins CM, Cowles RA, Barnhart DC, Huang EY, Abdullah F, et al. Parenteral nutrition-associated cholestasis: an American Pediatric Surgical Association Outcomes and Clinical Trials Committee systematic review. Journal of Pediatric Surgery. 2012; 47(1):225-40. https://doi.org/10. 1016/j.jpedsurg.2011.10.007 PMID: 22244423
45. Righetti L. Inflammatory fibroid polyps in children: A new case report and a systematic review of the pediatric literature. World Journal of Clinical Pediatrics. 2015; 4(4):160. https://doi.org/10.5409/wjcp. v4.i4.160 PMID: 26566490
46. Routh JC, McGee SM, Ashley RA, Reinberg Y, Vandersteen DR. Predicting Renal Outcomes in Children With Anterior Urethral Valves: A Systematic Review. The Journal of Urology. 2010; 184(4):1615-9.
47. (Sebastian) van As A. Paediatric trauma care. African Journal of Paediatric Surgery. 2010;7(3):129.
48. Shalaby MS, Di Rollo D, Adikibi B, Brindley N. Left sided colo-colic intussusception in a child with acute lymphoblastic leukemia: A case report and systematic review of the literature. Journal of Pediatric Surgery Case Reports. 2014; 2(5):228-31.
49. Shteynshlyuger A, Yu J. Familial testicular torsion: A meta analysis suggests inheritance. Journal of Pediatric Urology. 2013; 9(5):683-90. https://doi.org/10.1016/j.jpurol.2012.08.002 PMID: 23017841
50. Stanger JD, Oliveira C, Blackmore C, Avitzur Y, Wales PW. The impact of multi-disciplinary intestinal rehabilitation programs on the outcome of pediatric patients with intestinal failure: A systematic review and meta-analysis. Journal of Pediatric Surgery. 2013; 48(5):983-92. https://doi.org/10.1016/j. jpedsurg.2013.02.070 PMID: 23701771
51. Suominen JS, Jawaid WB, Losty PD. Testicular microlithiasis and associated testicular malignancies in childhood: A systematic review: Testicular Microlithiasis and Malignancies. Pediatric Blood & Cancer. 2015; 62(3):385-8.
52. Svensson JF, Hall NJ, Eaton S, Pierro A, Wester T. A review of conservative treatment of acute appendicitis. Eur J Pediatr Surg. 2012; 22(3):185-94. https://doi.org/10.1055/s-0032-1320014 PMID: 22767171
53. Szylberg Ł, Marszałek A. Diagnosis of Hirschsprung's disease with particular emphasis on histopathology. A systematic review of current literature. Gastroenterology Review. 2014; 5:264-9.
54. Thompson AJ, McSwain SD, Webb SA, Stroud MA, Streck CJ. Venous thromboembolism prophylaxis in the pediatric trauma population. Journal of Pediatric Surgery. 2013; 48(6):1413-21. https://doi.org/ 10.1016/j.jpedsurg.2013.02.059 PMID: 23845640
55. van der Heijden MJE, Oliai Araghi S, van Dijk M, Jeekel J, Hunink MGM. The Effects of Perioperative Music Interventions in Pediatric Surgery: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Laks J, editor. PLOS ONE. 2015 6; 10(8):e0133608. https://doi.org/10.1371/journal. pone.0133608 PMID: 26247769
56. van der Vlies CH, Saltzherr TP, Wilde JCH, van Delden OM, de Haan RJ, Goslings JC. The failure rate of nonoperative management in children with splenic or liver injury with contrast blush on computed tomography: a systematic review. Journal of Pediatric Surgery. 2010; 45(5):1044-9. https://doi. org/10.1016/j.jpedsurg.2010.01.002 PMID: 20438952
57. Westgarth-Taylor C, de Lijster L, van Bogerijen G, Millar AJW, Karpelowsky J. A prospective assessment of renal oxygenation in children undergoing laparoscopy using near-infrared spectroscopy. Surgical Endoscopy. 2013; 27(10):3696-704. https://doi.org/10.1007/s00464-013-2950-3 PMID: 23605192
58. White JT, Samples DC, Prieto JC, Tarasiewicz I. Systematic Review of Urologic Outcomes from Tethered Cord Release in Occult Spinal Dysraphism in Children. Current Urology Reports [Internet]. 2015Nov [cited 2016 Jul 5]; 16(11). Available from: http://link.springer.com/10.1007/s11934-015-0550-6
59. Zani-Ruttenstock E, Zani A, Bullman E, Lapidus-Krol E, Pierro A. Are paediatric operations evidence based? A prospective analysis of general surgery practice in a teaching paediatric hospital. Pediatric Surgery International. 2015; 31(1):53-9. https://doi.org/10.1007/s00383-014-3624-5 PMID: 25367096
60. Zhong H, Wang F. Contralateral metachronous hernia following negative laparoscopic evaluation for contralateral patent processus vaginalis: a meta-analysis. J Laparoendosc Adv Surg Tech A. 2014; 24 (2):111-6. https://doi.org/10.1089/lap.2013.0429 PMID: 24180355
61. Aikenhead A, Knai C, Lobstein T. Effectiveness and cost-effectiveness of paediatric bariatric surgery: a systematic review: Review of bariatric surgery in youth. Clinical Obesity. 2011; 1(1):12-25. https:// doi.org/10.1111/j.1758-8111.2010.00003.x PMID: 25586971
62. Al-Hozaim O, Al-Maary J, AlQahtani A, Zamakhshary M. Laparoscopic-assisted anorectal pull-through for anorectal malformations: a systematic review and the need for standardization of outcome reporting. Journal of Pediatric Surgery. 2010; 45(7):1500-4. https://doi.org/10.1016/j.jpedsurg.2009.12.001PMID: 20638532
63. Allen CJ, Valle EJ, Thorson CM, Hogan AR, Perez EA, Namias N, et al. Pediatric emergency department thoracotomy: A large case series and systematic review. Journal of Pediatric Surgery. 2015; 50 (1):177-81. https://doi.org/10.1016/j.jpedsurg.2014.10.042 PMID: 25598119
64. Allin BSR, Tse WHW, Marven S, Johnson PRV, Knight M. Challenges of Improving the Evidence Base in Smaller Surgical Specialties, as Highlighted by a Systematic Review of Gastroschisis Management. Lau WYJ, editor. PLOS ONE. 2015; 10(1):e0116908. https://doi.org/10.1371/journal.pone.0116908 PMID: 25621838
65. Alzahem A. Laparoscopic versus open inguinal herniotomy in infants and children: a meta-analysis. Pediatric Surgery International. 2011; 27(6):605-12. https://doi.org/10.1007/s00383-010-2840-x PMID: 21290136
66. Apelt N, Featherstone N, Giuliani S. Laparoscopic treatment of intussusception in children: A systematic review. Journal of Pediatric Surgery. 2013; 48(8):1789-93. https://doi.org/10.1016/j.jpedsurg. 2013.05.024 PMID: 23932624
67. Aworanti O, Awadalla S. Management of recurrent tracheoesophageal fistulas: a systematic review. Eur J Pediatr Surg. 2014; 24(5):365-75. https://doi.org/10.1055/s-0034-1370780 PMID: 24683108
68. Baker L, Beres AL, Baird R. A systematic review and meta-analysis of gastrostomy insertion techniques in children. Journal of Pediatric Surgery. 2015; 50(5):718-25. https://doi.org/10.1016/j. jpedsurg.2015.02.021 PMID: 25783383
69. Berger M, Ure B, Lacher M. Mitomycin C in the therapy of recurrent esophageal strictures: hype or hope? Eur J Pediatr Surg. 2012; 22(2):109-16. https://doi.org/10.1055/s-0032-1311695 PMID: 22517516
70. Billingham MJ, Basterfield SJ. Pediatric surgical technique: laparoscopic or open approach? A systematic review and meta-analysis. Eur J Pediatr Surg. 2010; 20(2):73-7. https://doi.org/10.1055/s-0029-1241871 PMID: 19882502
71. Black JA, White B, Viner RM, Simmons RK. Bariatric surgery for obese children and adolescents: a systematic review and meta-analysis: Pediatric bariatric surgery: a meta-analysis. Obesity Reviews. 2013; 14(8):634-44. https://doi.org/10.1111/obr.12037 PMID: 23577666
72. Borruto FA, Impellizzeri P, Antonuccio P, Finocchiaro A, Scalfari G, Arena F, et al. Laparoscopic vs open varicocelectomy in children and adolescents: review of the recent literature and meta-analysis. Journal of Pediatric Surgery. 2010; 45(12):2464-9. https://doi.org/10.1016/j.jpedsurg.2010.07.007PMID: 21129568
73. Castagnetti M, El-Ghoneimi A. Surgical Management of Primary Severe Hypospadias in Children: Systematic 20-Year Review. The Journal of Urology. 2010; 184(4):1469-75. https://doi.org/10.1016/j. juro.2010.06.044 PMID: 20727541
74. Castagnetti M, Gnech M, Angelini L, Rigamonti W, Bagnara V, Esposito C. Does Preputial Reconstruction Increase Complication Rate of Hypospadias Repair? 20-Year Systematic Review and Meta-Analysis. Frontiers in Pediatrics [Internet]. 2016 Apr 28 [cited 2016 Jul 5]; 4. Available from: http:// journal.frontiersin.org/Article/10.3389/fped.2016.00041/abstract
75. Chan E, Wayne C, Nasr A, FRCSC for Canadian Association of Pediatric Surgeon Evidence-Based Resource. Ideal timing of orchiopexy: a systematic review. Pediatr Surg Int. 2014; 30(1):87-97. https://doi.org/10.1007/s00383-013-3429-y PMID: 24232174
76. Chan E, Wayne C, Nasr A. Minimally invasive versus open repair of Bochdalek hernia: a meta-analysis. Journal of Pediatric Surgery. 2014; 49(5):694-9. https://doi.org/10.1016/j.jpedsurg.2014.02.049PMID: 24851750
77. Chang S-J, Hsu C-K, Hsieh C-H, Yang SS-D. Comparing the efficacy and safety between roboticassisted versus open pyeloplasty in children: a systematic review and meta-analysis. World Journal of Urology. 2015; 33(11):1855-65. https://doi.org/10.1007/s00345-015-1526-3 PMID: 25754944
78. Chen Y, Nah SA, Laksmi NK, Ong CCP, Chua JHY, Jacobsen A, et al. Transanal endorectal pullthrough versus transabdominal approach for Hirschsprung's disease: A systematic review and metaanalysis. Journal of Pediatric Surgery. 2013; 48(3):642-51. https://doi.org/10.1016/j.jpedsurg.2012. 12.036 PMID: 23480925
79. Corbett HJ, Mullassery D. Outcomes of endopyelotomy for pelviureteric junction obstruction in the paediatric population: A systematic review. Journal of Pediatric Urology. 2015; 11(6):328-36. https:// doi.org/10.1016/j.jpurol.2015.08.014 PMID: 26553288
80. Cullis PS, Siminas S, Losty PD. Is Screening of Intestinal Foregut Anatomy in Heterotaxy Patients Really Necessary?: A Systematic Review in Search of the Evidence. Annals of surgery [Internet]. 2015 [cited 2016 Jul 5]; Available from: http://europepmc.org/abstract/med/26704743
81. Cundy TP, Harling L, Hughes-Hallett A, Mayer EK, Najmaldin AS, Athanasiou T, et al. Meta-analysis of robot-assisted vs conventional laparoscopic and open pyeloplasty in children: Robot-assisted vs laparoscopic and open pyeloplasty in children. BJU International. 2014; 114(4):582-94. PMID: 25383399
82. Cundy TP, Harling L, Marcus HJ, Athanasiou T, Darzi AW. Meta analysis of robot-assisted versus conventional laparoscopic fundoplication in children. Journal of Pediatric Surgery. 2014; 49(4):646-52. https://doi.org/10.1016/j.jpedsurg.2013.12.014 PMID: 24726129
83. Cundy TP, Marcus HJ, Clark J, Hughes-Hallett A, Mayer EK, Najmaldin AS, et al. Robot-assisted minimally invasive surgery for pediatric solid tumors: a systematic review of feasibility and current status. Eur J Pediatr Surg. 2014; 24(2):127-35. https://doi.org/10.1055/s-0033-1347297 PMID: 23686663
84. Ding J, Xia Y, Zhang Z, Liao G, Pan Y, Liu S, et al. Single-incision versus conventional three-incision laparoscopic appendicectomy for appendicitis: A systematic review and meta-analysis. Journal of Pediatric Surgery. 2013; 48(5):1088-98. https://doi.org/10.1016/j.jpedsurg.2013.01.026 PMID: 23701788
85. Dingemann C, Ure B, Dingemann J. Thoracoscopic procedures in pediatric surgery: what is the evidence? Eur J Pediatr Surg. 2014; 24(1):14-9. https://doi.org/10.1055/s-0033-1350060 PMID: 23852720
86. Dingemann J, Ure BM. Systematic review of level 1 evidence for laparoscopic pediatric surgery: do our procedures comply with the requirements of evidence-based medicine? Eur J Pediatr Surg. 2013; 23(6):474-9. https://doi.org/10.1055/s-0033-1333639 PMID: 23444068
87. Ells LJ, Mead E, Atkinson G, Corpeleijn E, Roberts K, Viner R, et al. Surgery for the treatment of obesity in children and adolescents. In: The Cochrane Collaboration, editor. Cochrane Database of Systematic Reviews [Internet]. Chichester, UK: John Wiley & Sons, Ltd; 2015 [cited 2016 Jul 5].
88. Elyas R, Guerra LA, Pike J, DeCarli C, Betolli M, Bass J, et al. Is Staging Beneficial for Fowler-Stephens Orchiopexy? A Systematic Review. The Journal of Urology. 2010; 183(5):2012-9. https://doi. org/10.1016/j.juro.2010.01.035 PMID: 20303527
89. Esposito C, St. Peter SD, Escolino M, Juang D, Settimi A, Holcomb GW. Laparoscopic Versus Open Inguinal Hernia Repair in Pediatric Patients: A Systematic Review. Journal of Laparoendoscopic & Advanced Surgical Techniques. 2014; 24(11):811-8.
90. Feng S, Qiu Y, Li X, Yang H, Wang C, Yang J, et al. Laparoscopic versus open splenectomy in children: a systematic review and meta-analysis. Pediatric Surgery International. 2016; 32(3):253-9. https://doi.org/10.1007/s00383-015-3845-2 PMID: 26661732
91. Feng S, Zhao L, Liao Z, Chen X. Open versus laparoscopic inguinal herniotomy in children: a systematic review and meta-analysis focusing on postoperative complications. Surgical Laparoscopy Endoscopy & Percutaneous Techniques. 2015; 25(4):275-280.
92. Friedmacher F, Puri P. Residual aganglionosis after pull-through operation for Hirschsprung's disease: a systematic review and meta-analysis. Pediatric Surgery International. 2011; 27(10):1053-7. https:// doi.org/10.1007/s00383-011-2958-5 PMID: 21789665
93. Friedmacher F, Puri P. Delayed primary anastomosis for management of long-gap esophageal atresia: a meta-analysis of complications and long-term outcome. Pediatric Surgery International. 2012; 28(9):899-906. https://doi.org/10.1007/s00383-012-3142-2 PMID: 22875461
94. Frongia G, Kessler M, Weih S, Nickkholgh A, Mehrabi A, Holland-Cunz S. Comparison of LILT and STEP procedures in children with short bowel syndrome-A systematic review of the literature. Journal of Pediatric Surgery. 2013; 48(8):1794-805. https://doi.org/10.1016/j.jpedsurg.2013.05.018 PMID: 23932625
95. Gallo G, Zwaveling S, Groen H, Van der Zee D, Hulscher J. Long-gap esophageal atresia: a metaanalysis of jejunal interposition, colon interposition, and gastric pull-up. Eur J Pediatr Surg. 2012; 22 (6):420-5. https://doi.org/10.1055/s-0032-1331459 PMID: 23212741
96. Gosemann J-H, Friedmacher F, Ure B, Lacher M. Open Versus Transanal Pull-Through for Hirschsprung Disease: A Systematic Review of Long-Term Outcome. European Journal of Pediatric Surgery. 2013; 23(2):094-102.
97. Graziano K, Islam S, Dasgupta R, Lopez ME, Austin M, Chen LE, et al. Asymptomatic malrotation: Diagnosis and surgical management. Journal of Pediatric Surgery. 2015; 50(10):1783-90. https://doi. org/10.1016/j.jpedsurg.2015.06.019 PMID: 26205079
98. Guo J, Liang Z, Zhang H, Yang C, Pu J, Mei H, et al. Laparoscopic versus open orchiopexy for nonpalpable undescended testes in children: a systemic review and meta-analysis. Pediatric Surgery International. 2011; 27(9):943-52. https://doi.org/10.1007/s00383-011-2889-1 PMID: 21476074
99. Hall NJ, Jones CE, Eaton S, Stanton MP, Burge DM. Is interval appendicectomy justified after successful nonoperative treatment of an appendix mass in children? A systematic review. Journal of Pediatric Surgery. 2011; 46(4):767-71. https://doi.org/10.1016/j.jpedsurg.2011.01.019 PMID: 21496553
100. Healy DA, Doyle D, Moynagh E, Maguire M, Ahmed I, Ahmed AS, et al. Systematic Review and Meta-Analysis on the Influence of Surgeon Specialization on Outcomes Following Appendicectomy in Children. Medicine [Internet]. 2015 [cited 2016 Jul 5]; 94(32). Available from: http://www.ncbi.nlm.nih.gov/ pmc/articles/PMC4616707/
101. Healy JM, Olgun LF, Hittelman AB, Ozgediz D, Caty MG. Pediatric incidental appendectomy: a systematic review. Pediatric Surgery International. 2016; 32(4):321-35. https://doi.org/10.1007/s00383-015-3839-0 PMID: 26590816
102. Heloury Y, Muthucumaru M, Panabokke G, Cheng W, Kimber C, Leclair MD. Minimally invasive adrenalectomy in children. Journal of Pediatric Surgery. 2012; 47(2):415-21. https://doi.org/10.1016/j. jpedsurg.2011.08.003 PMID: 22325405
103. Huang Y, Wu Y, Shan W, Zeng L, Huang L. An updated meta-analysis of laparoscopic versus open pyeloplasty for ureteropelvic junction obstruction in children. International journal of clinical and experimental medicine. 2015; 8(4):4922. PMID: 26131065
104. Ishii H, Griffin S, Somani BK. Flexible ureteroscopy and lasertripsy (FURSL) for paediatric renal calculi: Results from a systematic review. Journal of Pediatric Urology. 2014; 10(6):1020-5. https://doi. org/10.1016/j.jpurol.2014.08.003 PMID: 25241397
105. Ishii H, Griffin S, Somani BK. Ureteroscopy for stone disease in the paediatric population: a systematic review: Ureteroscopy for stone disease in children. BJU International. 2015; 115(6):867-73. https:// doi.org/10.1111/bju.12927 PMID: 25203925
106. Ito Y. Does frenotomy improve breast-feeding difficulties in infants with ankyloglossia?: Frenotomy in infants with ankyloglossia. Pediatrics International. 2014; 56(4):497-505. https://doi.org/10.1111/ped.12429 PMID: 24978831
107. Jia W-Q, Tian J-H, Yang K-H, Ma B, Liu Y-L, Zhang P, et al. Open versus Laparoscopic Pyloromyotomy for Pyloric Stenosis: A Meta-analysis of Randomized Controlled Trials. European Journal of Pediatric Surgery. 2011; 21(2):77-81. https://doi.org/10.1055/s-0030-1261926 PMID: 20957601
108. Kapralik J, Wayne C, Chan E, Nasr A. Surgical versus conservative management of congenital pulmonary airway malformation in children: A systematic review and meta-analysis. Journal of Pediatric Surgery. 2016; 51(3):508-12. https://doi.org/10.1016/j.jpedsurg.2015.11.022 PMID: 26775193
109. Kunz SN, Tieder JS, Whitlock K, Jackson JC, Avansino JR. Primary fascial closure versus staged closure with silo in patients with gastroschisis: A meta-analysis. Journal of Pediatric Surgery. 2013; 48 (4):845-57. https://doi.org/10.1016/j.jpedsurg.2013.01.020 PMID: 23583145
110. Landisch R, Abdel-Hafeez A- H, Massoumi R, Christensen M, Shillingford A, Wagner AJ. Observation versus prophylactic Ladd procedure for asymptomatic intestinal rotational abnormalities in heterotaxy syndrome: A systematic review. Journal of Pediatric Surgery. 2015; 50(11):1971-4. https://doi.org/10. 1016/j.jpedsurg.2015.08.002 PMID: 26358665
111. Lane V, Vajda P, Subramaniam R. Paediatric sutureless circumcision: a systematic literature review. Pediatric Surgery International. 2010; 26(2):141-4. https://doi.org/10.1007/s00383-009-2475-y PMID: 19707772
112. Lansdale N, Alam S, Losty PD, Jesudason EC. Neonatal endosurgical congenital diaphragmatic hernia repair: a systematic review and meta-analysis. Annals of surgery. 2010; 252(1):20-26. https://doi. org/10.1097/SLA.0b013e3181dca0e8 PMID: 20505506
113. Lee SL, Islam S, Cassidy LD, Abdullah F, Arca MJ. Antibiotics and appendicitis in the pediatric population: an American Pediatric Surgical Association Outcomes and Clinical Trials Committee Systematic Review. Journal of Pediatric Surgery. 2010; 45(11):2181-5. https://doi.org/10.1016/j.jpedsurg.2010. 06.038 PMID: 21034941
114. LeeVan E, Zmora O, Cazzulino F, Burke RV, Zagory J, Upperman JS. Management of pediatric blunt renal trauma: A systematic review. Journal of Trauma and Acute Care Surgery. 2016; 80(3):519-28. https://doi.org/10.1097/TA.0000000000000950 PMID: 26713980
115. Liang Z, Guo J, Zhang H, Yang C, Pu J, Mei H, et al. Lymphatic sparing versus lymphatic non-sparing laparoscopic varicocelectomy in children and adolescents: a systematic review and meta-analysis. Eur J Pediatr Surg. 2011; 21(3):147-53. https://doi.org/10.1055/s-0031-1271733 PMID: 21351044
116. Lishuang M, Zhen C, Guoliang Q, Zhen Z, Chen W, Long L, et al. Laparoscopic portoenterostomy versus open portoenterostomy for the treatment of biliary atresia: a systematic review and meta-analysisof comparative studies. Pediatric Surgery International. 2015; 31(3):261-9. https://doi.org/10.1007/ s00383-015-3662-7 PMID: 25627699
117. Livingston MH, Shawyer AC, Rosenbaum PL, Jones SA, Walton JM. Fundoplication and gastrostomy versus percutaneous gastrojejunostomy for gastroesophageal reflux in children with neurologic impairment: A systematic review and meta-analysis. Journal of Pediatric Surgery. 2015; 50(5):707-14. https://doi.org/10.1016/j.jpedsurg.2015.02.020 PMID: 25783384
118. Mauritz FA, Blomberg BA, Stellato RK, van der Zee DC, Siersema PD, van Herwaarden-Lindeboom MYA. Complete Versus Partial Fundoplication in Children with Gastroesophageal Reflux Disease: Results of a Systematic Review and Meta-analysis. Journal of Gastrointestinal Surgery. 2013; 17 (10):1883-92. https://doi.org/10.1007/s11605-013-2305-3 PMID: 23943388
119. Mauritz FA, van Herwaarden-Lindeboom MYA, Stomp W, Zwaveling S, Fischer K, Houwen RHJ, et al. The Effects and Efficacy of Antireflux Surgery in Children with Gastroesophageal Reflux Disease: A Systematic Review. Journal of Gastrointestinal Surgery. 2011; 15(10):1872-8. https://doi.org/10. 1007/s11605-011-1644-1 PMID: 21800225
120. Mei H, Pu J, Yang C, Zhang H, Zheng L, Tong Q. Laparoscopic versus open pyeloplasty for ureteropelvic junction obstruction in children: a systematic review and meta-analysis. J Endourol. 2011; 25 (5):727-36. https://doi.org/10.1089/end.2010.0544 PMID: 21476861
121. Mullassery D, Farrelly P, Losty PD. Does aggressive surgical resection improve survival in advanced stage 3 and 4 neuroblastoma? A systematic review and meta-analysis. Pediatr Hematol Oncol. 2014; 31(8):703-16. https://doi.org/10.3109/08880018.2014.947009 PMID: 25247398
122. Nagler EV, Williams G, Hodson EM, Craig JC. Interventions for primary vesicoureteric reflux. The Cochrane Library [Internet]. 2011 [cited 2016 Jul 5]
123. Narayanan SK, Chen Y, Narasimhan KL, Cohen RC. Hepaticoduodenostomy versus hepaticojejunostomy after resection of choledochal cyst: A systematic review and meta-analysis. Journal of Pediatric Surgery. 2013; 48(11):2336-42. https://doi.org/10.1016/j.jpedsurg.2013.07.020 PMID: 24210209
124. Nasr A, Fecteau A, Wales PW. Comparison of the Nuss and the Ravitch procedure for pectus excavatum repair: a meta-analysis. Journal of Pediatric Surgery. 2010; 45(5):880-6. https://doi.org/10.1016/j. jpedsurg.2010.02.012 PMID: 20438918
125. Nasr A, Langer JC. Mechanical traction techniques for long-gap esophageal atresia: a critical appraisal. Eur J Pediatr Surg. 2013; 23(3):191-7. https://doi.org/10.1055/s-0033-1347916 PMID: 23720210
126. Nataraja RM, Loukogeorgakis SP, Sherwood WJ, Clarke SA, Haddad MJ. The Incidence of Intraabdominal Abscess Formation Following Laparoscopic Appendicectomy in Children: A Systematic Review and Meta-analysis. Journal of Laparoendoscopic & Advanced Surgical Techniques. 2013; 23 (9):795-802.
127. Nicolau AE. Is laparoscopy still needed in blunt abdominal trauma. Chirurgia. 2011; 106(1):59-66.PMID: 21520776
128. Oliveira DEG, da Cruz ML, Liguori R, Garrone G, Leslie B, Ottoni SL, et al. Neophalloplasty in boys with aphallia: A systematic review. Journal of Pediatric Urology. 2016; 12(1):19-24. https://doi.org/10. 1016/j.jpurol.2015.10.003 PMID: 26778186
129. Oomen MWN, Hoekstra LT, Bakx R, Ubbink DT, Heij HA. Open Versus Laparoscopic Pyloromyotomy for Hypertrophic Pyloric Stenosis: A Systematic Review and Meta-Analysis Focusing on Major Complications. Surgical Endoscopy. 2012; 26(8):2104-10. https://doi.org/10.1007/s00464-012-2174-y PMID: 22350232
130. Parolini F, Armellini A, Boroni G, Bagolan P, Alberti D. The management of newborns with esophageal atresia and right aortic arch: A systematic review or still unsolved problem. Journal of Pediatric Surgery. 2016; 51(2):304-9. https://doi.org/10.1016/j.jpedsurg.2015.10.043 PMID: 26592954
131. Parolini F, Morandi A, Macchini F, Gentilino V, Zanini A, Leva E. Cervical/thoracotomic/thoracoscopic approaches for H-type congenital tracheo-esophageal fistula: A systematic review. International Journal of Pediatric Otorhinolaryngology. 2014; 78(7):985-9. https://doi.org/10.1016/j.ijporl.2014.04.011PMID: 24856837
132. Peters RT, Goh YL, Veitch JM, Khalil BA, Morabito A. Morbidity and mortality in total esophagogastric dissociation: A systematic review. Journal of Pediatric Surgery. 2013; 48(4):707-12. https://doi.org/ 10.1016/j.jpedsurg.2012.11.049 PMID: 23583122
133. Peycelon M, Audry G, Irtan S. Minimally invasive surgery in childhood cancer: a challenging future. Eur J Pediatr Surg. 2014; 24(6):443-9. https://doi.org/10.1055/s-0034-1396419 PMID: 25478667
134. Pfistermuller KLM, McArdle AJ, Cuckow PM. Meta-analysis of complication rates of the tubularized incised plate (TIP) repair. Journal of Pediatric Urology. 2015; 11(2):54-9. https://doi.org/10.1016/j. jpurol.2014.12.006 PMID: 25819601
135. Puligandla PS, Grabowski J, Austin M, Hedrick H, Renaud E, Arnold M, et al. Management of congenital diaphragmatic hernia: A systematic review from the APSA outcomes and evidence based practice committee. Journal of Pediatric Surgery. 2015; 50(11):1958-70. https://doi.org/10.1016/j.jpedsurg. 2015.09.010 PMID: 26463502
136. Reddy PP, Defoor WR. Ureteroscopy: The standard of care in the management of upper tract urolithiasis in children. Indian J Urol. 2010; 26(4):555-63. https://doi.org/10.4103/0970-1591.74459 PMID: 21369390
137. Romao RLP, Nasr A, Chiu PPL, Langer JC. What is the best prosthetic material for patch repair of congenital diaphragmatic hernia? Comparison and meta-analysis of porcine small intestinal submucosa and polytetrafluoroethylene. Journal of Pediatric Surgery. 2012; 47(8):1496-500. https://doi.org/10. 1016/j.jpedsurg.2012.01.009 PMID: 22901906
138. Ross AR, Eaton S, Zani A, Ade-Ajayi N, Pierro A, Hall NJ. The role of preformed silos in the management of infants with gastroschisis: a systematic review and meta-analysis. Pediatric Surgery International.2015 May; 31(5):473-83. https://doi.org/10.1007/s00383-015-3691-2 PMID: 25758783
139. Ruttenstock E, Puri P. Systematic review and meta-analysis of enterocolitis after one-stage transanal pull-through procedure for Hirschsprung's disease. Pediatric Surgery International. 2010; 26 (11):1101-5. https://doi.org/10.1007/s00383-010-2695-1 PMID: 20711596
140. Rynja SP, de Jong TPVM, Bosch JLHR, de Kort LMO. Functional, cosmetic and psychosexual results in adult men who underwent hypospadias correction in childhood. Journal of Pediatric Urology. 2011; 7(5):504-15. https://doi.org/10.1016/j.jpurol.2011.02.008 PMID: 21429804
141. Saldaña LJ, Targarona EM. Single-Incision Pediatric Endosurgery: A Systematic Review. Journal of Laparoendoscopic & Advanced Surgical Techniques. 2013; 23(5):467-80.
142. Sauerland S, Jaschinski T, Neugebauer EA. Laparoscopic versus open surgery for suspected appendicitis. Cochrane Database Syst Rev. 2010;(10):CD001546. https://doi.org/10.1002/14651858.CD001546.pub3 PMID: 20927725
143. Scholfield DW, Ram AD. Laparoscopic Duhamel Procedure for Hirschsprung's Disease: Systematic Review and Meta-analysis. Journal of Laparoendoscopic & Advanced Surgical Techniques. 2016 Jan; 26(1):53-61.
144. Sharp N, St Peter S. Treatment of Idiopathic Achalasia in the Pediatric Population: A Systematic Review. European Journal of Pediatric Surgery. 2015; 26(2):143-9. https://doi.org/10.1055/s-0035-1544174 PMID: 25643252
145. Shawyer AC, D'Souza J, Pemberton J, Flageole H. The management of postoperative reflux in congenital esophageal atresia-tracheoesophageal fistula: a systematic review. Pediatric Surgery International. 2014; 30(10):987-96. https://doi.org/10.1007/s00383-014-3548-0 PMID: 25011995
146. Shawyer AC, Livingston MH, Cook DJ, Braga LH. Laparoscopic versus open repair of recto-bladderneck and recto-prostatic anorectal malformations: a systematic review and meta-analysis. Pediatric Surgery International. 2015; 31(1):17-30. https://doi.org/10.1007/s00383-014-3626-3 PMID: 25316437
147. Shen H-J, Xu M, Zhu H-Y, Yang C, Li F, Li K, et al. Laparoscopic versus open surgery in children with choledochal cysts: a meta-analysis. Pediatric Surgery International. 2015; 31(6):529-34. https://doi. org/10.1007/s00383-015-3705-0 PMID: 25895070
148. Siddiqui MRS, Abdulaal Y, Nisar A, Ali H, Hasan F. A meta-analysis of outcomes after open and laparoscopic Nissen's fundoplication for gastro-oesophageal reflux disease in children. Pediatric Surgery International. 2011; 27(4):359-66. https://doi.org/10.1007/s00383-010-2698-y PMID: 20734053
149. Siminas S, Losty PD. Current Surgical Management of Pediatric Idiopathic Constipation: A Systematic Review of Published Studies. Annals of Surgery. 2015; 262(6):925-33. https://doi.org/10.1097/SLA.0000000000001191 PMID: 25775070
150. Sklar CM, Chan E, Nasr A. Laparoscopic Versus Open Reduction of Intussusception in Children: A Retrospective Review and Meta-analysis. Journal of Laparoendoscopic & Advanced Surgical Techniques. 2014; 24(7):518-22.
151. Sola JE, Tepas JJ, Koniaris LG. Peritoneal Drainage versus Laparotomy for Necrotizing Enterocolitis and Intestinal Perforation: A Meta-Analysis. Journal of Surgical Research. 2010; 161(1):95-100. https://doi.org/10.1016/j.jss.2009.05.007 PMID: 19691973
152. Symeonidis EN, Nasioudis D, Economopoulos KP. Laparoendoscopic single-site surgery (LESS) for major urological procedures in the pediatric population: A systematic review. International Journal of Surgery. 2016; 29:53-61. https://doi.org/10.1016/j.ijsu.2016.03.040 PMID: 27000720
153. Tan Y-W, Khalil A, Kakade M, Carvalho JS, Bradley S, Cleeve S, et al. Screening and Treatment of Intestinal Rotational Abnormalities in Heterotaxy: A Systematic Review and Meta-Analysis. The Journal of Pediatrics. 2016; 171:153-162.e3. https://doi.org/10.1016/j.jpeds.2015.12.074 PMID: 26868865
154. Terui K, Nagata K, Ito M, Yamoto M, Shiraishi M, Taguchi T, et al. Surgical approaches for neonatal congenital diaphragmatic hernia: a systematic review and meta-analysis. Pediatric Surgery International. 2015; 31(10):891-7. https://doi.org/10.1007/s00383-015-3765-1 PMID: 26280741
155. Thomson D, Allin B, Long A-M, Bradnock T, Walker G, Knight M. Laparoscopic assistance for primary transanal pull-through in Hirschsprung's disease: a systematic review and meta-analysis. BMJ Open. 2015; 5(3):e006063. https://doi.org/10.1136/bmjopen-2014-006063 PMID: 25805527
156. Thyoka M, Timmis A, Mhango T, Roebuck DJ. Balloon dilatation of anastomotic strictures secondary to surgical repair of oesophageal atresia: a systematic review. Pediatric Radiology. 2013; 43(8):898-901. https://doi.org/10.1007/s00247-013-2693-2 PMID: 23877544
157. van Dalen EC, de Lijster MS, Leijssen LG, Michiels EM, Kremer LC, Caron HN, et al. Minimally invasive surgery versus open surgery for the treatment of solid abdominal and thoracic neoplasms in children. In: The Cochrane Collaboration, editor. Cochrane Database of Systematic Reviews [Internet]. Chichester, UK: John Wiley & Sons, Ltd; 2015 [cited 2016 Jul 5].
158. Vanden Berg RNW, Bierman EN, Noord MV, Rice HE, Routh JC. Nephron-sparing surgery for Wilms tumor: A systematic review. Urol Oncol. 2016; 34(1):24-32. https://doi.org/10.1016/j.urolonc.2015.07.003 PMID: 26254695
159. van den Hondel D, Sloots C, Meeussen C, Wijnen R. To split or not to split: colostomy complications for anorectal malformations or hirschsprung disease: a single center experience and a systematic review of the literature. Eur J Pediatr Surg. 2014; 24(1):61-9. https://doi.org/10.1055/s-0033-1351663PMID: 23918670
160. Vernon-Roberts A, Sullivan PB. Fundoplication versus postoperative medication for gastro-oesophageal reflux in children with neurological impairment undergoing gastrostomy. In: The Cochrane Collaboration, editor. Cochrane Database of Systematic Reviews [Internet]. Chichester, UK: John Wiley & Sons, Ltd; 2013 [cited 2016 Jul 5].
161. Wang F, Xu Y, Zhong H. Systematic review and meta-analysis of studies comparing the perimeatalbased flap and tubularized incised-plate techniques for primary hypospadias repair. Pediatric Surgery International. 2013; 29(8):811-21. https://doi.org/10.1007/s00383-013-3335-3 PMID: 23793987
162. Wayne C, Chan E, Nasr A, Canadian Association of Paediatric Surgeons Evidence-Based Resource. What is the ideal surgical approach for intra-abdominal testes? A systematic review. Pediatr Surg Int. 2015; 31(4):327-38. https://doi.org/10.1007/s00383-015-3676-1 PMID: 25663531
163. Weih S, Kessler M, Fonouni H, Golriz M, Hafezi M, Mehrabi A, et al. Current practice and future perspectives in the treatment of short bowel syndrome in children-a systematic review. Langenbeck's Archives of Surgery. 2012; 397(7):1043-51. https://doi.org/10.1007/s00423-011-0874-8 PMID: 22105773
164. Wenk K, Sick B, Sasse T, Moehrlen U, Meuli M, Vuille-dit-Bille RN. Incidence of metachronous contralateral inguinal hernias in children following unilateral repair-A meta-analysis of prospective studies. Journal of Pediatric Surgery. 2015; 50(12):2147-54. https://doi.org/10.1016/j.jpedsurg.2015.08.056PMID: 26455468
165. Wilkinson DJ, Farrelly P, Kenny SE. Outcomes in distal hypospadias: A systematic review of the Mathieu and tubularized incised plate repairs. Journal of Pediatric Urology. 2012; 8(3):307-12. https:// doi.org/10.1016/j.jpurol.2010.11.008 PMID: 21159560
166. Wright I, Cole E, Farrokhyar F, Pemberton J, Lorenzo AJ, Braga LH. Effect of Preoperative Hormonal Stimulation on Postoperative Complication Rates After Proximal Hypospadias Repair: A Systematic Review. The Journal of Urology. 2013; 190(2):652-60. https://doi.org/10.1016/j.juro.2013.02.3234PMID: 23597451
167. Yang C, Zhang H, Pu J, Mei H, Zheng L, Tong Q. Laparoscopic vs open herniorrhaphy in the management of pediatric inguinal hernia: a systemic review and meta-analysis. Journal of Pediatric Surgery. 2011; 46(9):1824-34. https://doi.org/10.1016/j.jpedsurg.2011.04.001 PMID: 21929997
168. Yang G, Wang X, Jiang W, Ma J, Zhao J, Liu W. Postoperative intussusceptions in children and infants: a systematic review. Pediatric Surgery International. 2013; 29(12):1273-9. https://doi.org/10. 1007/s00383-013-3345-1 PMID: 23852556
169. Youssef F, Gorgy A, Arbash G, Puligandla PS, Baird RJ. Flap versus fascial closure for gastroschisis: a systematic review and meta-analysis. J Pediatr Surg. 2016; 51(5):718-25. https://doi.org/10.1016/j. jpedsurg.2016.02.010 PMID: 26970850
170. Zani A, Ade-Ajayi N, Cancelliere LA, Kemal KI, Patel S, Desai AP. Is single incision pediatric endoscopic surgery more painful than standard laparoscopy in children? Personal experience and review of the literature. Minerva Pediatr. 2015; 67(6):457-63. PMID: 25034218
171. Zhao L, Liao Z, Feng S, Wu P, Chen G. Single-incision versus conventional laparoscopic appendicectomy in children: a systematic review and meta-analysis. Pediatric Surgery International. 2015; 31 (4):347-53. https://doi.org/10.1007/s00383-015-3680-5 PMID: 25667049
172. Zhu Y, Wu Y, Pu Q, Ma L, Liao H, Liu L. Minimally invasive surgery for congenital diaphragmatic hernia: a meta-analysis. Hernia. 2016; 20(2):297-302. https://doi.org/10.1007/s10029-015-1423-0 PMID: 26438082
173. Lip SZL, Murchison LED, Cullis PS, Govan L, Carachi R. A meta-analysis of the risk of boys with isolated cryptorchidism developing testicular cancer in later life. Arch Dis Child. 2013; 98(1):20-26. https://doi.org/10.1136/archdischild-2012-302051 PMID: 23193201
174. Ostlie DJ, Peter SDS. The current state of evidence-based pediatric surgery. Journal of Pediatric Surgery. 2010; 45(10):1940-6. https://doi.org/10.1016/j.jpedsurg.2010.05.008 PMID: 20920710
175. Schulz KF, Altman DG, Moher D. CONSORT 2010 Statement: Updated Guidelines for Reporting Parallel Group Randomised Trials. PLoS Med. 2010; 7(3).
176. Blakely ML, Kao LS, Tsao K, Huang EY, Tsai A, Tanaka S, et al. Adherence of Randomized Trials Within Children's Surgical Specialties Published During 2000 to 2009 to Standard Reporting Guidelines. Journal of the American College of Surgeons. 2013; 217(3).
177. Shawyer AC, Livingston MH, Manja V, Brouwers MC. The quality of guidelines in pediatric surgery: can we all AGREE? Pediatr Surg Intl. 2014; 31(1):61-8.
178. Liberati A, Altman DG, Tetzlaff J, Mulrow C, Gøtzsche PC, Ioannidis JPA, et al. The PRISMA statement for reporting systematic reviews and meta-analyses of studies that evaluate healthcare interventions: explanation and elaboration. British Medical Journal. 2009; 339:b2700. https://doi.org/10.1136/ bmj.b2700 PMID: 19622552
179. Reveiz L, Cortés-Jofré M, Asenjo Lobos C, Nicita G, Ciapponi A, Garcìa-Dieguez M, et al. Influence of trial registration on reporting quality of randomized trials: Study from highest ranked journals. Journal of Clinical Epidemiology. 2010; 63(11):1216-1222. https://doi.org/10.1016/j.jclinepi.2010.01.013PMID: 20430576
180. Braga LH, Pemberton J, Demaria J, Lorenzo AJ. Methodological Concerns and Quality Appraisal of Contemporary Systematic Reviews and Meta-Analyses in Pediatric Urology. Journal of Urology. 2011; 186(:266-72. https://doi.org/10.1016/j.juro.2011.03.044 PMID: 21600615
181. Salim A, Mullassery D, Losty PD. Quality of systematic reviews and meta-analyses studies published in paediatric surgery. Br J Surg. 2013; 100(S7):2.