ISUOG practice guidelines: Invasive procedures for prenatal diagnosis

Ultrasound in Obstetrics and Gynecology

Volumn 48, Issue 2, 2016, Pages 256-268

  Ghi, T ^a   Sotiriadis, A ^b   Calda, P ^c   Da Silva Costa, F ^d   Raine Fenning, N ^e   Alfirevic, Z ^f   McGillivray, G ^g  

^a UNIVERSITY OF PARMA   (Italy)

^b ARISTOTLE UNIVERSITY OF THESSALONIKI   (Greece)

^c CHARLES UNIVERSITY   (Czech Republic)

^d MONASH MEDICAL CENTRE   (Australia)

^e UNIVERSITY OF NOTTINGHAM   (United Kingdom)

^f UNIVERSITY OF LIVERPOOL   (United Kingdom)

^g MERCY HOSPITAL FOR WOMEN   (Australia)

Author keywords

[No Author keywords available]

Indexed keywords

ADVERSE EFFECTS; AMNIOCENTESIS; CHORION VILLUS SAMPLING; CONSENSUS; CYTOLOGY; DEVICES; FEMALE; FETUS BLOOD; FETUS ECHOGRAPHY; GENETIC SCREENING; HUMAN; PRACTICE GUIDELINE; PREGNANCY; PRENATAL DIAGNOSIS; PROCEDURES; STANDARDS; TIME FACTOR;

AMNIOCENTESIS; CHORIONIC VILLI SAMPLING; CONSENSUS; FEMALE; FETAL BLOOD; GENETIC TESTING; HUMANS; PREGNANCY; PRENATAL DIAGNOSIS; TIME FACTORS; ULTRASONOGRAPHY, PRENATAL;

EID: 85014613177     PISSN: 09607692     EISSN: 14690705     Source Type: Journal    
DOI: 10.1002/uog.15945     Document Type: Article

References (106)

1. Sarto GE. Prenatal diagnosis of genetic disorders by amniocentesis. Wis Med J 1970; 69: 255–260.
2. Royal College of Obstetricians & Gynaecologists. Amniocentesis and Chorionic Villus Sampling. Green-top Guideline No. 8, June 2010.
3. Wilson RD, Davies G, Gagnon A, Desilets V, Reid GJ, Summers A, Wyatt P, Allen VM, Langlois S; Genetics Committee of the Society of Obstetricians and Gynaecologists of Canada. Amended Canadian guideline for prenatal diagnosis (2005) change to 2005–techniques for prenatal diagnosis. J Obstet Gynaecol Can 2005; 27: 1048–1062.
4. Tabor A, Alfirevic Z. Update on procedure-related risks for prenatal diagnosis techniques. Fetal Diagn Ther 2010; 27: 1–7.
5. Cruz-Lemini M, Parra-Saavedra M, Borobio V, Bennasar M, Goncé A, Martínez JM, Borrell A. How to perform an amniocentesis. Ultrasound Obstet Gynecol 2014; 44: 727–731.
6. Athanasiadis AP, Pantazis K, Goulis DG, Chatzigeorgiou K, Vaitsi V, Assimakopoulos E, Tzevelekis F, Tsalikis T, Bontis JN. Comparison between 20G and 22G needle for second trimester amniocentesis in terms of technical aspects and short-term complications. Prenat Diagn 2009; 29: 761–765.
7. Uludag S, Aydin Y, Ibrahimova F, Madazli R, Sen C. Comparison of complications in second trimester amniocentesis performed with 20G, 21G and 22G needles. J Perinat Med 2010; 38: 597–600.
8. Giorlandino C, Mobili L, Bilancioni E, D’Alessio P, Carcioppolo O, Gentili P, Vizzone A. Transplacental amniocentesis: is it really a higher-risk procedure? Prenat Diagn 1994; 14: 803–806.
9. Bombard AT, Powers JF, Carter S, Schwartz A, Nitowsky HM. Procedure-related fetal losses in transplacental versus nontransplacental genetic amniocentesis. Am J Obstet Gynecol 1995; 172: 868–872.
10. Marthin T, Liedgren S, Hammar M. Transplacental needle passage and other risk-factors associated with second trimester amniocentesis. Acta Obstet Gynecol Scand 1997; 76: 728–732.
11. Seeds JW. Diagnostic mid trimester amniocentesis: how safe? Am J Obstet Gynecol 2004; 191: 607–615.
12. Tabor A, Philip J, Madsen M, Bang J, Obel EB, Nørgaard-Pedersen B. Randomised controlled trial of genetic amniocentesis in 4606 low-risk women. Lancet 1986; 1: 1287–1293.
13. Calda P, Brestak M. Amniovacucentesis vs standard syringe technique for amniocentesis: experience with 1219 cases. Am J Obstet Gynecol 2009; 201: 593.
14. Nuss S, Brebaum D, Grond-Ginsbach C. Maternal cell contamination in amniotic fluid samples as a consequence of the sampling technique. Hum Genet 1994; 93: 121–124.
15. Hockstein S, Chen PX, Thangavelu M, Pergament E. Factors associated with maternal cell contamination in amniocentesis samples as evaluated by fluorescent in situ hybridization. Obstet Gynecol 1998; 92: 551–556.
16. Welch RA, Salem-Elgharib S, Wiktor AE, Van Dyke DL, Blessed WB. Operator experience and sample quality in genetic amniocentesis. Am JObstet Gynecol 2006; 194: 189–191.
17. American College of Obstetricians and Gynecologists. ACOG Practice Bulletin No. 88, December 2007. Invasive prenatal testing for aneuploidy. Obstet Gynecol 2007; 110: 1459–1467.
18. Johnson JM, Wilson RD, Winsor EJ, Singer J, Dansereau J, Kalousek DK. The early amniocentesis study: a randomized clinical trial of early amniocentesis versus midtrimester amniocentesis. Fetal Diagn Ther 1996; 11: 85–93.
19. Wilson RD, Johnson J, Windrim R, Dansereau J, Singer J, Winsor EJ, Kalousek D. The early amniocentesis study: a randomized clinical trial of early amniocentesis and midtrimester amniocentesis. II. Evaluation of procedure details and neonatal congenital anomalies. Fetal Diagn Ther 1997; 12: 97–101.
20. Randomised trial to assess safety and fetal outcome of early and midtrimester amniocentesis. The Canadian Early and Mid-trimester Amniocentesis Trial (CEMAT) Group. Lancet 1998; 351: 242–247.
21. Farrell SA, Summers AM, Dallaire L, Singer J, Johnson JA, Wilson RD. Club foot, an adverse outcome of early amniocentesis: disruption or deformation? CEMAT. Canadian Early and Mid-Trimester Amniocentesis Trial. J Med Genet 1999; 36: 843–846.
22. Kahler C, Gembruch U, Heling KS, Henrich W, Schramm T; DEGUM. [DEGUM guidelines for amniocentesis and chorionic villus sampling]. Ultraschall Med 2013; 34: 435–440.
23. O’Donoghue K, Giorgi L, Pontello V, Pasquini L, Kumar S. Amniocentesis in the third trimester of pregnancy. Prenat Diagn 2007; 27: 1000–1004.
24. Akolekar R, Beta J, Picciarelli G, Ogilvie C, D’Antonio F. Procedure-related risk of miscarriage following amniocentesis and chorionic villus sampling: a systematic review and meta-analysis. Ultrasound Obstet Gynecol 2015; 45: 16–26.
25. Wulff CB, Gerds TA, Rode L, Ekelund CK, Petersen OB, Tabor A; Danish Fetal Medicine Study Group. The risk of fetal loss associated with invasive testing following combined first trimester risk screening for Down syndrome – a national cohort of 147 987 singleton pregnancies. Ultrasound Obstet Gynecol 2016; 47: 38–44.
26. Philip J, Silver RK, Wilson RD, Thom EA, Zachary JM, Mohide P, Mahoney MJ, Simpson JL, Platt LD, Pergament E, Hershey D, Filkins K, Johnson A, Shulman LP, Bang J, MacGregor S, Smith JR, Shaw D, Wapner RJ, Jackson LG. Late first-trimester invasive prenatal diagnosis: results of an international randomized trial; NICHD EATA Trial Group. Obstet Gynecol 2004; 103: 1164–1173.
27. Borgida AF, Mills AA, Feldman DM, Rodis JF, Egan JF. Outcome of pregnancies complicated by ruptured membranes after genetic amniocentesis. Am J Obstet Gynecol 2000; 183: 937–939.
28. Cross HE, Maumenee AE. Ocular trauma during amniocentesis. Arch Ophthalmol 1973; 90: 303–304.
29. Epley SL, Hanson JW, Cruikshank DP. Fetal injury with midtrimester diagnostic amniocentesis. Obstet Gynecol 1979; 53: 77–80.
30. Cambiaghi S, Restano L, Cavalli R, Gelmetti C. Skin dimpling as a consequence of amniocentesis. J Am Acad Dermatol 1998; 39: 888–890.
31. Sepúlveda W, Quiroz V, Fernández R. [Trauma of the fetal vessels during amniocentesis]. Rev Chil Obstet Ginecol 1984; 49: 99–103.
32. Eller KM, Kuller JA. Porencephaly secondary to fetal trauma during amniocentesis. Obstet Gynecol 1995; 85: 865–867.
33. Squier M, Chamberlain P, Zaiwalla Z, Anslow P, Oxbury J, Gould S, McShane MA. Five cases of brain injury following amniocentesis in mid-term pregnancy. Dev Med Child Neurol 2000; 42: 554–560.
34. Okyay RE, Gode F, Saatli B, Guclu S. Late-onset maternal mortality after amniocentesis. Eur J Obstet Gynecol Reprod Biol 2011; 158: 367–368.
35. Bodner K, Wierrani F, Bodner-Adler B. Maternal sepsis due to Clostridium perfringens after 2nd-trimester genetic amniocentesis. J Obstet Gynaecol 2011; 31: 339–340.
36. Pinette MG. Maternal death after second-trimester genetic amniocentesis. Obstet Gynecol 2005; 106: 409.
37. Elchalal U, Shachar IB, Peleg D, Schenker JG. Maternal mortality following diagnostic 2nd-trimester amniocentesis. Fetal Diagn Ther 2004; 19: 195–198.
38. Plachouras N, Sotiriadis A, Dalkalitsis N, Kontostolis E, Xiropotamos N, Paraskevaidis E. Fulminant sepsis after invasive prenatal diagnosis. Obstet Gynecol 2004; 104: 1244–1247.
39. Hess LW, Anderson RL, Golbus MS. Significance of opaque discolored amniotic fluid at second-trimester amniocentesis. Obstet Gynecol 1986; 67: 44–46.
40. Tabor A, Vestergaard CH, Lidegaard Ø. Fetal loss rate after chorionic villus sampling and amniocentesis: an 11-year national registry study. Ultrasound Obstet Gynecol 2009; 34: 19–24.
41. Towner D, Currier RJ, Lorey FW, Cunningham GC, Greve LC. Miscarriage risk from amniocentesis performed for abnormalmaternal serum screening. Am JObstet Gynecol 2007; 196: 608.e1–5.
42. Harper LM, Cahill AG, Smith K, Macones GA, Odibo AO. Effect of maternal obesity on the risk of fetal loss after amniocentesis and chorionic villus sampling. Obstet Gynecol 2012; 119: 745–751.
43. Department of Obstetrics and Gynecology, Tietung Hospital, Anshan, China. Fetal sex prediction by sex chromatin of chorionic cells during early pregnancy. Chin Med J (Engl) 1975; 1: 117–126.
44. Niazi M, Coleman DV, Loeffler FE. Trophoblast sampling in early pregnancy. Culture of rapidly dividing cells from immature placental villi. Br J Obstet Gynaecol 1981; 88: 1081–1085.
45. Young C, von Dadelszen P, Alfirevic Z. Instruments for chorionic villus sampling for prenatal diagnosis. Cochrane Database Syst Rev 2013; 1: CD000114.
46. Jackson LG, Zachary JM, Fowler SE, Desnick RJ, Golbus MS, Ledbetter DH, Mahoney MJ, Pergament E, Simpson JL, Black S, et al. A randomized comparison of transcervical and transabdominal chorionic-villus sampling. The U.S. National Institute of Child Health and Human Development Chorionic-Villus Sampling and Amniocentesis Study Group. N Engl J Med 1992; 327: 594–598.
47. Carlin AJ, Alfirevic Z. Techniques for chorionic villus sampling and amniocentesis: a survey of practice in specialist UK centres. Prenat Diagn 2008; 28: 914–919.
48. Battagliarin G, Lanna M, Coviello D, Tassis B, Quarenghi A, Nicolini U. A randomized study to assess two different techniques of aspiration while performing transabdominal chorionic villus sampling. Ultrasound Obstet Gynecol 2009; 33: 169–172.
49. von Dadelszen P, Sermer M, Hillier J, Allen LC, Fernandes BJ, Johnson JA, Shime J, Winsor EJ, Ryan G. A randomised controlled trial of biopsy forceps and cannula aspiration for transcervical chorionic villus sampling. BJOG 2005; 112: 559–566.
50. Mastroiacovo P, Botto LD, Cavalcanti DP, Lalatta F, Selicorni A, Tozzi AE, Baronciani D, Cigolotti AC, Giordano S, Petroni F, et al. Limb anomalies following chorionic villus sampling: a registry based case–control study. Am J Med Genet 1992; 44: 856–864.
51. Botto LD, Olney RS, Mastroiacovo P, Khoury MJ, Moore CA, Alo CJ, Costa P, Edmonds LD, Flood TJ, Harris JA, Howe HL, Olsen CL, Panny SR, Shaw GM. Chorionic villus sampling and transverse digital deficiencies: evidence for anatomic and gestational-age specificity of the digital deficiencies in two studies. Am J Med Genet 1996; 62: 173–178.
52. Brambati B, Lanzani A, Tului L. Transabdominal and transcervical chorionic villus sampling: efficiency and risk evaluation of 2,411 cases. Am J Med Genet 1990; 35: 160–164.
53. Papp C, Beke A, Mezei G, Tóth-Pál E, Papp Z. Chorionic villus sampling: a 15-year experience. Fetal Diagn Ther 2002; 17: 218–227.
54. Odibo AO, Dicke JM, Gray DL, Oberle B, Stamilio DM, Macones GA, Crane JP. Evaluating the rate and risk factors for fetal loss after chorionic villus sampling. Obstet Gynecol 2008; 112: 813–819.
55. Donner C, Simon P, Karioun A, Delneste D, Abramowicz M, Cochaux P, Rodesch F. Experience with 1251 transcervical chorionic villus samplings performed in the first trimester by a single team of operators. Eur J Obstet Gynecol Reprod Biol 1995; 60: 45–51.
56. Smidt-Jensen S, Permin M, Philip J, Lundsteen C, Zachary J, Fowler S, Grüning K. Randomized comparison of amniocentesis and transabdominal and transcervical chorionic villus sampling. Lancet 1992; 340: 1237–1244.
57. Alfirevic Z, Sundberg K, Brigham S. Amniocentesis and chorionic villus sampling for prenatal diagnosis. Cochrane Database Syst Rev 2003; 3: CD003252.
58. Basaran A, Basaran M, Topatan B. Chorionic villus sampling and the risk of preeclampsia: a systematic review and meta-analysis. Arch Gynecol Obstet 2011; 283: 1175–1181.
59. Sotiriadis A, Eleftheriades M, Chatzinikolaou F, Chatzistamatiou K, Assimakopoulos E, Chasiakos D. Fetal growth impairment after first-trimester chorionic villus sampling: a case–control study. J Matern Fetal Neonatal Med 2015 29: 1–5.
60. Akolekar RI, Bower S, Flack N, Bilardo CM, Nicolaides KH. Prediction of miscarriage and stillbirth at 11–13 weeks and the contribution of chorionic villus sampling. Prenat Diagn 2011; 31: 38–45.
61. Orlandi F, Damiani G, Jakil C, Rossi C, Maggio A, Scola B, Cittadini E, Quartararo P. Clinical results and fetal biochemical data in 140 early second trimester diagnostic cordocenteses. Acta Eur Fertil 1987; 18: 329–333.
62. Society for Maternal-Fetal Medicine (SMFM), Berry SM, Stone J, Norton ME, Johnson D, Berghella V. Fetal blood sampling. Am J Obstet Gynecol 2013 Sep; 209: 170–180.
63. Nicolaidis P, Nicolini U, Fisk NM, Tannirandorn Y, Nasrat H, Rodeck CH. Fetal blood sampling from the intrahepatic vein for rapid karyotyping in the second and third trimesters. Br J Radiol 1991; 64: 505–509.
64. Tongsong T, Wanapirak C, Kunavikatikul C, Sirirchotiyakul S, Piyamongkol W, Chanprapaph P. Fetal loss rate associated with cordocentesis at midgestation. Am J Obstet Gynecol 2001; 184: 719–723.
65. Maxwell DJ, Johnson P, Hurley P, Neales K, Allan L, Knott P. Fetal blood sampling and pregnancy loss in relation to indication. Br J Obstet Gynaecol 1991; 98: 892–897.
66. Antsaklis A, Daskalakis G, Papantoniou N, Michalas S. Fetal blood sampling--indication-related losses. Prenat Diagn 1998; 18: 934–940.
67. Liao C, Wei J, Li Q, Li L, Li J, Li D. Efficacy and safety of cordocentesis for prenatal diagnosis. Int Gynecol Obstet 2006; 93: 13–17.
68. Royal College of Obstetricians and Gynaecologists. The use of Anti-D Immunoglobulin for Rhesus D Prophylaxis. Green-top Guideline No. 22. London: RCOG Press, March 2011. http://obgyan2015.org/wp-content/uploads/2015/11/Rh-negative-and-AntiD.pdf.
69. Tabor A, Jerne D, Bock JE. Incidence of rhesus immunisation after genetic amniocentesis. Br Med J (Clin Res Ed) 1986; 293: 533–536.
70. Murray JC, Karp LE, Williamson RA, Cheng EY, Luthy DA. Rh isoimmunization related to amniocentesis. Am J Med Genet 1983; 16: 527–534.
71. Henrion R, Papa F, Rouvillois JL, Henrion-Géant E. [Early amniocentesis, 1061 punctures and 1000 pregnancies]. J Gynecol Obstet Biol Reprod (Paris) 1979; 8: 603–611.
72. Brandenburg H, Jahoda MG, Pijpers L, Wladimiroff JW. Rhesus sensitization after midtrimester genetic amniocentesis. Am J Med Genet 1989; 32: 225–226.
73. Gagnon A, Davies G, Wilson RD; Genetics Committee, Wilson RD, Audibert F, Brock JA, Campagnolo C, Carroll J, Chitaya DT, Gagnon A, Johnson JA, MacDonald W, Murphy-Kaulbeck L, Okun N, Pastuck M; Executive and Council of the Society of Obstetricians and Gynecologists of Canada. Prenatal invasive procedures in women with hepatitis B, hepatitis C, and/or human immunodeficiency virus infections. J Obstet Gynaecol Can 2014; 36: 648–655.
74. Giorlandino C, Cignini P, Cini M, Brizzi C, Carcioppolo O, Milite V, Coco C, Gentili P, Mangiafico L, Mesoraca A, Bizzoco D, Gabrielli I, Mobili L. Antibiotic prophylaxis before second-trimester genetic amniocentesis (APGA): a single-centre open randomised controlled trial. Prenat Diagn 2009; 29: 606–612.
75. Alfirevic Z, Pilu G. Antibiotic prophylaxis for amniocentesis. Prenat Diagn 2009; 29: 1094.
76. Ferrazzi E. Antibiotic prophylaxis before second-trimester genetic amniocentesis. Prenat Diagn 2010; 30: 188.
77. Hobbins JC, Pilu G, Abuhumad A, Alfirevic Z, Bahado-Singh RO, Benacerraf BR, Berkowitz RL, Cetin I, Copel JA, Eik-Nes S, Frusca T, Galan HL, Guaschino S, Mahoney MJ, Marsal K, Malinger G, Marconi AM, Martinelli P, Moore TR, Papageorghiou AT, Platt LD, Rizzo N, Tabor A, Thilaganathan B, Timor-Tritsch IE, Todros T, Yagel S. Antibiotic prophylaxis before amniocentesis. Prenat Diagn 2011; 31: 1213–1214.
78. Gramellini D, Fieni S, Casilla G, Raboni S, Nardelli GB. Mid-trimester amniocentesis and antibiotic prophylaxis. Prenat Diagn 2007; 27: 956–959.
79. Mujezinovic F, Alfirevic Z. Technique modifications for reducing the risks from amniocentesis or chorionic villus sampling. Cochrane Database Syst Rev 2012; 8: CD008678.
80. Mujezinovic F, Alfirevic Z. Analgesia for amniocentesis or chorionic villus sampling. Cochrane Database Syst Rev 2011; 11: CD008580.
81. Technical and clinical assessment of fluorescence in situ hybridization: an ACMG/ASHG position statement. Technical considerations. American College of Medical Genetics. Genet Med 2000; 2: 356–361.
82. Wapner RJ, Martin CL, Levy B, Ballif BC, Eng CM, Zachary JM, Savage M, Platt LD, Saltzman D, Grobman WA, Klugman S, Scholl T, Simpson JL, McCall K, Aggarwal VS, Bunke B, Nahum O, Patel A, Lamb AN, Thom EA, Ledbetter DH, Shaffer LG, Jackson L. Chromosomalmicroarray versus karyotyping for prenatal diagnosis. N Engl J Med 2012; 367: 2175–2184.
83. Jansen FA, Blumenfeld YJ, Fisher A, Cobben JM, Odibo AO, Borrell A, Haak MC. Array comparative genomic hybridization and fetal congenital heart defects: a systematic review and meta-analysis. Ultrasound Obstet Gynecol 2015; 45: 27–35.
84. Grande M, Jansen FA, Blumenfeld YJ, Fisher A, Odibo AO, Haak MC, Borrell A. Genomic microarray in fetuses with increased nuchal translucency and normal karyotype: a systematic review and meta-analysis. Ultrasound Obstet Gynecol 2015; 46: 650–658.
85. Yi W, Pan CQ, Hao J, Hu Y, Liu M, Li L, Liang D. Risk of vertical transmission of hepatitis B after amniocentesis in HBs antigen-positive mothers. J Hepatol 2014; 60: 523–529.
86. Towers CV, Asra T, Rumney P. The presence of hepatitis B surface antigen and deoxyribonucleic acid in amniotic fluid and cord blood. Am JObstet Gynecol 1999; 184: 1514–1518.
87. Grosheide PM, Quartero HW, Schalm SW, Heijtink RA, Christiaens GC. Early invasive prenatal diagnosis in HBsAg-positive women. Prenat Diagn 1994; 14: 553–558.
88. Tess BH, Rodrigues LC, Newell ML, Dunn DT, Lago TD. Breastfeeding, genetic, obstetric and other risk factors associated with mother-to-child transmission of HIV-1 in Sao Paulo State, Brazil. Sao Paulo Collaborative Study for Vertical Transmission of HIV-1. AIDS 1998; 12: 513–520.
89. Maiques V, García-Tejedor A, Perales A, Córdoba J, Esteban RJ. HIV detection in amniotic fluid samples. Amniocentesis can be performed in HIV pregnant women? Eur J Obstet Gynecol Reprod Biol 2003; 108: 137–141.
90. Somigliana E, Bucceri AM, Tibaldi C, Alberico S, Ravizza M, Savasi V, Marini S, Matrone R, Pardi G; Italian Collaborative Study on HIV Infection in Pregnancy. Early invasive diagnostic techniques in pregnant women who are infected with the HIV: a multicenter case series. Am J Obstet Gynecol 2005; 193: 437–442.
91. Ekoukou D, Khuong-Josses MA, Ghibaudo N, Mechali D, Rotten D. Amniocentesis in pregnant HIV-infected patients. Absence of mother-to-child viral transmission in a series of selected patients. Eur J Obstet Gynecol Reprod Biol 2008; 140: 212–217.
92. Mandelbrot L, Jasseron C, Ekoukou D, Batallan A, Bongain A, Pannier E, Blanche S, Tubiana R, Rouzioux C, Warszawski J; ANRS French Perinatal Cohort (EPF). Amniocentesis and mother-to-child human immunodeficiency virus transmission in the Agence Nationale de Recherches sur le SIDA et les Hépatites Virales French Perinatal Cohort. Am J Obstet Gynecol 2009; 200: 160.e1–9.
93. Shapiro DE, Sperling RS, Mandelbrot L, Britto P, Cunningham BE. Risk factors for perinatal human immunodeficiency virus transmission in patients receiving zidovudine prophylaxis. Pediatric AIDS Clinical Trials Group protocol 076 Study Group. Obstet Gynecol 1999; 94: 897–908.
94. Millaire M, Bujold E, Morency AM, Gauthier RJ. Mid-trimester genetic amniocentesis in twin pregnancy and the risk of fetal loss. J Obstet Gynaecol Can 2006; 28: 512–518.
95. Lenis-Cordoba N, Sánchez MÁ, Bello-Muñoz JC, Sagalá-Martinez J, Campos N, Carreras-Moratonas E, Cabero-Roura L. Amniocentesis and the risk of second trimester fetal loss in twin pregnancies: results from a prospective observational study. J Matern Fetal Neonatal Med 2013; 26: 1537–1541.
96. Cahill AG, Macones GA, Stamilio DM, Dicke JM, Crane JP, Odibo AO. Pregnancy loss rate after mid-trimester amniocentesis in twin pregnancies. Am J Obstet Gynecol 2009; 200: 257.e1–6.
97. Agarwal K, Alfirevic Z. Pregnancy loss after chorionic villus sampling and genetic amniocentesis in twin pregnancies: a systematic review. Ultrasound Obstet Gynecol 2012; 40: 128–134.
98. Wapner RJ, Johnson A, Davis G, Urban A, Morgan P, Jackson L. Prenatal diagnosis in twin gestations: a comparison between second-trimester amniocentesis and first-trimester chorionic villus sampling. Obstet Gynecol 1993; 82: 49–56.
99. Simonazzi G, Curti A, Farina A, Pilu G, Bovicelli L, Rizzo N. Amniocentesis and chorionic villus sampling in twin gestations: which is the best sampling technique? Am J Obstet Gynecol 2010; 202: 365.e1–5.
100. Pergament E, Schulman JD, Copeland K, Fine B, Black SH, Ginsberg NA, Frederiksen MC, Carpenter RJ. The risk and efficacy of chorionic villus sampling in multiple gestations. Prenat Diagn 1992; 12: 377–384.
101. Audibert F, Gagnon A; Genetics Committee of the Society of Obstetricians and Gynaecologists of Canada; Prenatal Diagnosis Committee of the Canadian College of Medical Geneticists. Prenatal screening for and diagnosis of aneuploidy in twin pregnancies. J Obstet Gynaecol Can 2011; 33: 754–767.
102. Kidd SA, Lancaster PA, Anderson JC, Boogert A, Fisher CC, Robertson R, Wass DM. A cohort study of pregnancy outcome after amniocentesis in twin pregnancy. Paediatr Perinat Epidemiol 1997; 11: 200–213.
103. McFadyen I. The dangers of intra-amniotic methylene blue. Br J Obstet Gynaecol 1992; 99: 89–90.
104. Weisz B, Rodeck C. Invasive diagnostic procedures in twin pregnancies. Prenat Diagn 2005; 25: 751–758.
105. Butwick AJ, Carvalho B. Anticoagulant and antithrombotic drugs in pregnancy: what are the anesthetic implications for labor and cesarean delivery? J Perinatol 2011; 31: 73–84.
106. Patel IJ, Davidson JC, Nikolic B, Salazar GM, Schwartzberg MS, Walker TG, Saad WA; Standards of Practice Committee, with Cardiovascular and Interventional Radiological Society of Europe (CIRSE) Endorsement. Consensus guidelines for periprocedural management of coagulation status and hemostasis risk in percutaneous image-guided interventions. J Vasc Interv Radiol 2012; 23: 727–736.