Autogenous versus prosthetic vascular access for hemodialysis: A systematic review and meta-analysis

Journal of Vascular Surgery

Volumn 48, Issue 5 SUPPL., 2008, Pages

  Murad, M Hassan ^a   Elamin, Mohamed B ^a   Sidawy, Anton N ^b   Malaga, German ^a   Rizvi, Adnan Z ^a   Flynn, David N ^a   Casey, Edward T ^a   McCausland, Finnian R ^a   McGrath, Martina M ^c   Vo, Danny H ^a   El Zoghby, Ziad ^a   Duncan, Audra A ^a   Tracz, Michal J ^a   Erwin, Patricia J ^a   Montori, Victor M ^a  

^a MAYO CLINIC   (United States)

^b GEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE AND HEALTH SCIENCES   (United States)

^c NONE

Author keywords

[No Author keywords available]

Indexed keywords

ARTERY STEAL SYNDROME; ARTICLE; BLEEDING; CLINICAL TRIAL; FALSE ANEURYSM; HEMATOMA; HEMODIALYSIS; HUMAN; INTERMETHOD COMPARISON; LENGTH OF STAY; META ANALYSIS; PRIORITY JOURNAL; PROSTHESIS; SYSTEMATIC REVIEW; TREATMENT OUTCOME; VASCULAR ACCESS; VASCULAR PATENCY;

ARTERIOVENOUS SHUNT, SURGICAL; BLOOD VESSEL PROSTHESIS; HUMANS; RENAL DIALYSIS; TRANSPLANTATION, AUTOLOGOUS;

EID: 55449100216     PISSN: 07415214     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jvs.2008.08.044     Document Type: Article

References (104)

1. Huber T.S., Buhler A.G., and Seeger J.M. Evidence-based data for the hemodialysis access surgeon. Semin Dial 17 (2004) 217-223
2. Huber T.S., Carter J.W., Carter R.L., and Seeger J.M. Patency of autogenous and polytetrafluoroethylene upper extremity arteriovenous hemodialysis accesses: a systematic review. J Vasc Surg 38 (2003) 1005-1011
3. Anonymous. NKF-KDOQI Clinical Practice Guidelines and clinical practice recommendations for Vascular Access, update 2006. Am J Kidney Dis 48 suppl 1 (2006) S177-S247
4. Pisoni R.L., Young E.W., Dykstra D.M., Greenwood R.N., Hecking E., Gillespie B., et al. Vascular access use in Europe and the United States: results from the DOPPS. Kidney Int 61 (2002) 305-316
5. Astor B.C., Coresh J., Powe N.R., Eustace J.A., and Klag M.J. Relation between gender and vascular access complications in hemodialysis patients. Am J Kidney Dis 36 (2000) 1126-1134
6. Lazarides M.K., Georgiadis G.S., Antoniou G.A., and Staramos D.N. A meta-analysis of dialysis access outcome in elderly patients. J Vasc Surg 45 (2007) 420-426
7. Leapman S.B., Boyle M., Pescovitz M.D., Milgrom M.L., Jindal R.M., and Filo R.S. The arteriovenous fistula for hemodialysis access: gold standard or archaic relic?. Am Surg 62 (1996) 652-656 discussion 656-7
8. Diskin C.J., Stokes T.J., Panus L.W., Thomas J., and Lock S. The importance of timing of surgery for hemodialysis vascular access thrombectomy. Nephron 75 (1997) 233-237
9. Hakaim A.G., and Scott T.E. Durability of early prosthetic dialysis graft cannulation: results of a prospective, nonrandomized clinical trial. J Vasc Surg 25 (1997) 1002-1005 discussion 1005-6
10. Rooijens P.P., Tordoir J.H., Stijnen T., Burgmans J.P., Smet de A.A., and Yo T.I. Radiocephalic wrist arteriovenous fistula for hemodialysis: meta-analysis indicates a high primary failure rate. Eur J Vasc Endovasc Surg 28 (2004) 583-589
11. Stroup D.F., Berlin J.A., Morton S.C., Olkin I., Williamson G.D., Rennie D., et al. Meta-analysis of observational studies in epidemiology: a proposal for reporting. Meta-analysis Of Observational Studies in Epidemiology (MOOSE) group. JAMA 283 (2000) 2008-2012
12. Sidawy A.N., Gray R., Besarab A., Henry M., Ascher E., Silva Jr. M., et al. Recommended standards for reports dealing with arteriovenous hemodialysis accesses. J Vasc Surg 35 (2002) 603-610
13. Wells G., Shea B., O'Connell D., Peterson J., Welch V., Losos M., et al. The Newcastle-Ottawa Scale (NOS) for assessing the quality of nonrandomised studies in meta-analyses. http://www.ohri.ca/programs/clinical_epidemiology/oxford.htm Accessed: Feb 15, 2007
14. DerSimonian R., and Laird N. Meta-analysis in clinical trials. Control Clin Trials 7 (1986) 177-188
15. Higgins J., Thompson S., Deeks J., and Altman D. Measuring inconsistency in meta-analyses. BMJ 327 (2003) 557-560
16. Parmar M.K., Torri V., and Stewart L. Extracting summary statistics to perform meta-analyses of the published literature for survival endpoints. [Erratum appears in Stat Med 2004;23:1817]. Stat Med 17 (1998) 2815-2834
17. Haimov M., Burrows L., and Schanzer H. Experience with arterial substitutes in the construction of vascular access for hemodialysis. J Cardiovasc Surg 21 (1980) 149-154
18. Mangiarotti G., Segoloni G.P., and Vercellone A. Experience with 351 prosthetic vascular accesses for chronic dialysis. Life Support Syst 1 suppl 1 (1983) 375-378
19. Tordoir J.H., Kwan T.S., Herman J.M., Carol E.J., and Jakimowicz J.J. Primary and secondary access surgery for haemodialysis with the Brescia-Cimino fistula and the polytetrafluoroethylene (PTFE) graft. Neth J Surg 35 (1983) 8-12
20. Louridas G., Botha J.R., and Levien L. Vascular access for haemodialysis - experience at Johannesbrug Hospital. S Afr Med J 66 (1984) 637-640
21. Winsett O.E., and Wolma F.J. Complications of vascular access for hemodialysis. South Med J 78 (1985) 513-517
22. Kherlakian G.M., Roedersheimer L.R., Arbaugh J.J., Newmark K.J., and King L.R. Comparison of autogenous fistula versus expanded polytetrafluoroethylene graft fistula for angioaccess in hemodialysis. Am J Surg 152 (1986) 238-243
23. Zibari G.B., Rohr M.S., Landreneau M.D., Bridges R.M., DeVault G.A., Petty F.H., et al. Complications from permanent hemodialysis vascular access. Surgery 104 (1988) 681-686
24. Filiptsev P.I., Moǐǐsiuk IaG., and Luk'ianov IuV. Use of an autovenous transplant, polytetrafluoroethylene prosthesis and human umbilical vein bioprosthesis for creating an arteriovenous fistula for programmed hemodialysis. [Russian]. Vestn Khir Im I I Grek 143 (1989) 36-38
25. Nazzal M.M.S., Neglen P., Naseem J., Christenson J.T., and Al-Hassan H.K. The brachiocephalic fistula: A successful secondary vascular access procedure. Vasa 19 (1990) 326-329
26. Sands J., Young S., and Miranda C. The effect of Doppler flow screening studies and elective revisions on dialysis access failure. ASAIO J 38 (1992) M524-M527
27. Churchill D.N., Taylor D.W., Cook R.J., LaPlante P., Barre P., Cartier P., et al. Canadian hemodialysis morbidity study. Am J Kidney Dis 19 (1992) 214-234
28. Tang I.Y., Vrahnos D., Valaitis D., and Lau A.H. Vascular access thrombosis during recombinant human erythropoietin therapy. ASAIO J 38 (1992) M528-M531
29. Sanabia J., Polo J.R., Morales M.D., Canals M.J., Polo J., and Serantes A. Microsurgery in gaining paediatric vascular access for haemodialysis. Microsurgery 14 (1993) 276-279
30. Taylor B., Sigley R.D., and May K.J. Fate of infected and eroded hemodialysis grafts and autogenous fistulas. Am J Surg 165 (1993) 632-636
31. Al-Wakeel J., Huraib S., Mitwalli A., Abu-Aisha H., Mofti A.A., Faqih S., et al. Hemodialysis vascular access and complications. Vasc Surg 28 (1994) 107-113
32. Bender M.H., Bruyninckx C.M., and Gerlag P.G. The brachiocephalic elbow fistula: a useful alternative angioaccess for permanent hemodialysis. [see comment]. J Vasc Surg 20 (1994) 808 -3
33. Chalabi L., Florence P., Chouzenoux R., Hoa B., Maurice F., Nguyen C., et al. What is to be done in the absence of a superficial venous network compatible with the creation of an arteriovenous shunt?. [French]. Nephrologie 15 (1994) 153-155
34. Coburn M.C., and Carney Jr. W.I. Comparison of basilic vein and polytetrafluoroethylene for brachial arteriovenous fistula. J Vasc Surg 20 (1994) 896-902 discussion 903-894
35. Riordan S., Frawley J., Gray L., and Niesche J. Primary access surgery for long-term haemodialysis. Aust N Z J Surg 64 (1994) 763-767
36. Chazan J.A., London M.R., and Pono L.M. Long-term survival of vascular accesses in a large chronic hemodialysis population. Nephron 69 (1995) 228-233
37. Kim Y.S., Yang C.W., Jin D.C., Ahn S.J., Chang Y.S., Yoon Y.S., et al. Comparison of peritoneal catheter survival with fistula survival in hemodialysis. Perit Dial Int 15 (1995) 147-151
38. Sands J.J., and Miranda C.L. Prolongation of hemodialysis access survival with elective revision. Clin Nephrol 44 (1995) 329-333
39. Tedoriya T., Urayama H., Katada S., and Watanabe Y. A survey of vascular access for hemodialysis. Vasc Surg 29 (1995) 123-127
40. Vaccaro F., Pagano A., and Romano M. Vascular accesses for hemodialysis: our experience for a period of three years. [Italian]. Chirurgia 8 (1995) 222-225
41. Enzler M.A., Rajmon T., Lachat M., and Largiader F. Long-term function of vascular access for hemodialysis. Clin Transplant 10 (1996) 511-515
42. Herzig R., and Florek H.J. Vascular surgical aspects of operative procedures for hemodialysis access. [German]. Gefasschirurgie 2 (1997) 144-149
43. Hodges T.C., Fillinger M.F., Zwolak R.M., Walsh D.B., Bech F., and Cronenwett J.L. Longitudinal comparison of dialysis access methods: risk factors for failure. J Vasc Surg 26 (1997) 1009-1019
44. Miller A., Holzenbein T.J., Gottlieb M.N., Sacks B.A., Lavin P.T., Goodman W.S., et al. Strategies to increase the use of autogenous arteriovenous fistula in end-stage renal disease. Ann Vasc Surg 11 (1997) 397-405
45. Sparks S.R., VanderLinden J.L., Gnanadev D.A., Smith J.W., and Bunt T.J. Superior patency of perforating antecubital vein arteriovenous fistulae for hemodialysis. Ann Vasc Surg 11 (1997) 165-167
46. Woods J.D., Turenne M.N., Strawderman R.L., Young E.W., Hirth R.A., Port F.K., et al. Vascular access survival among incident hemodialysis patients in the United States. Am J Kidney Dis 30 (1997) 50-57
47. Bay W.H., Henry M.L., Lazarus J.M., Lew N.L., Ling J., and Lowrie E.G. Predicting hemodialysis access failure with color flow Doppler ultrasound. Am J Nephrol 18 (1998) 296-304
48. Miranda C.L., and Sands J.J. Flow volumes as a predictor of hemodialysis access failure. J Vasc Technol 22 (1998) 73-76
49. Berardinelli L., and Vegeto A. Lessons from 494 permanent accesses in 348 haemodialysis patients older than 65 years of age: 29 years of experience. Nephrol Dial Transplant 13 suppl 7 (1998) 73-77
50. Bosman P.J., Blankestijn P.J., van der Graaf Y., Heintjes R.J., Koomans H.A., and Eikelboom B.C. A comparison between PTFE and denatured homologous vein grafts for haemodialysis access: a prospective randomised multicentre trial. Eur J Vasc Endovasc Surg 16 (1998) 126-132
51. Cante P., Bottet P., Ryckelynck J.P., Roch B.L., Levaltier B., Lobbedez T., et al. Distal vascular access for chronic hemodialysis in patients over 65 years of age. Surgical results. [French]. Prog Urol 8 (1998) 83-88
52. Jenkins A.M., Buist T.A., and Glover S.D. Medium-term follow-up of forty autogenous vein and forty polytetrafluoroethylene (Gore-Tex) grafts for vascular access. Surgery 88 (1980) 667-672
53. Matsuura J.H., Rosenthal D., Clark M., Shuler F.W., Kirby L., Shotwell M., et al. Transposed basilic vein versus polytetrafluorethylene for brachial- axillary arteriovenous fistulas. Am J Surg 176 (1998) 219-221
54. Obialo C.I., Robinson T., and Brathwaite M. Hemodialysis vascular access: Variable thrombus-free survival in three subpopulations of black patients. Am J Kidney Dis 31 (1998) 250-256
55. Silva M.B., Hobson R.W., Pappas P.J., Jamil Z., Araki C.T., Goldberg M.C., et al. A strategy for increasing use of autogenous hemodialysis access procedures: impact of preoperative noninvasive evaluation. J Vasc Surg 27 (1998) 302-307
56. Wang E.J., Schneditz D., Nepomuceno C., Lavarias V., Martin K., Morris A.T., et al. Predictive value of access blood flow in detecting access thrombosis. ASAIO J 44 (1998) M555-M558
57. Agarwal R., and Davis J.L. Monitoring interposition graft venous pressures at higher blood-flow rates improves sensitivity in predicting graft failure. Am J Kidney Dis 34 (1999) 212-217
58. Turnbull R.G., Lewis G.M., Karim M.A., Taylor D.C., Salvian A.J., Chambers G.K., et al. Primary vascular access for chronic hemodialysis: a comparison of arteriovenous fistulae with PTFE grafts. Vasc Surg 33 (1999) 51-57
59. Ascher E., Gade P., Hingorani A., Mazzariol F., Gunduz Y., Fodera M., et al. Changes in the practice of angioaccess surgery: impact of dialysis outcome and quality initiative recommendations. J Vasc Surg 31 (2000) 84-90
60. Rodriguez J.A., Armadans L., Ferrer E., Olmos A., Codina S., Bartolome J., et al. The function of permanent vascular access. Nephrol Dial Transplant 15 (2000) 402-408
61. Staramos D.N., Lazarides M.K., Tzilalis V.D., Ekonomou C.S., Simopoulos C.E., and Dayantas J.N. Patency of autologous and prosthetic arteriovenous fistulas in elderly patients. Eur J Surg 166 (2000) 777-781
62. Brunori V.F.G., Zubani R., Movilli E., Gaggiotti M., Cancarini G., et al. Which vascular access for chronic hemodialysis in uremic elderly patients?. J Vasc Access 1 (2000) 134-138
63. Dhingra R.K., Young E.W., Hulbert-Shearon T.E., Leavey S.F., and Port F.K. Type of vascular access and mortality in U.S. hemodialysis patients. Kidney Int 60 (2001) 1443-1451
64. Gibson K.D., Caps M.T., Kohler T.R., Hatsukami T.S., Gillen D.L., Aldassy M., et al. Assessment of a policy to reduce placement of prosthetic hemodialysis access. Kidney Int 59 (2001) 2335-2345
65. Gibson K.D., Gillen D.L., Caps M.T., Kohler T.R., Sherrard D.J., and Stehman-Breen C.O. Vascular access survival and incidence of revisions: a comparison of prosthetic grafts, simple autogenous fistulas, and venous transposition fistulas from the United States Renal Data System Dialysis Morbidity and Mortality Study. [see comment]. J Vasc Surg 34 (2001) 694-700
66. Oliver M.J., McCann R.L., Indridason O.S., Butterly D.W., and Schwab S.J. Comparison of transposed brachiobasilic fistulas to upper arm grafts and brachiocephalic fistulas. Kidney Int 60 (2001) 1532-1539
67. Dixon B.S., Novak L., and Fangman J. Hemodialysis vascular access survival: upper-arm native arteriovenous fistula. Am J Kidney Dis 39 (2002) 92-101
68. Lawrence C., Chow J., and Suranyi M. Factors affecting haemodialysis-access survival in a single centre retrospective cohort study. Nephrology 7 (2002) 72-76
69. Pastan S., Soucie J.M., and McClellan W.M. Vascular access and increased risk of death among hemodialysis patients. Kidney Int 62 (2002) 620-626
70. Ridao-Cano N., Polo J.R., Polo J., Perez-Garcia R., Sanchez M., and Gomez-Campdera F.J. Vascular access for dialysis in the elderly. Blood Purif 20 (2002) 563-568
71. Saxena A.K., Panhotra B.R., Naguib M., Sundaram D.S., Venkateshappa C.K., Wahid U., et al. The impact of achieving the target goal for AV fistulas, as set by NKF-DOQI, on Staphylococcus aureus septicemia. Dial Transplant 31 (2002) 16-24
72. Sheth R.D., Brandt M.L., Brewer E.D., Nuchtern J.G., Kale A.S., and Goldstein S.L. Permanent hemodialysis vascular access survival in children and adolescents with end-stage renal disease. Kidney Int 62 (2002) 1864-1869
73. Valentine R.J., Bouch C.W., Scott D.J., Li S., Jackson M.R., Modrall J.G., et al. Do preoperative finger pressures predict early arterial steal in hemodialysis access patients?. A prospective analysis. J Vasc Surg 36 (2002) 351-356
74. Johnson C. Preoperative and intraoperative predictors of vascular access outcome. In: Henry M.L. (Ed). Vascular access for hemodialysis-VIII (2002), Gore and Assoc and Precept Press, Chicago, IL 143-156
75. Baaran O., Karakayali H., Emirolu R., Belli S., and Haberal M. Complications and long-term follow-up of 4416 vascular access procedures. Transplant Proc 35 (2003) 2578-2579
76. Cernadas M.R., Grandjean M., and Tosi M.A. Vascular access patency and complications: a comparison of brachiobasilic AV fistulas and PTFE brachioaxillary bridge AV fistulas in hemodialysis patients. Dial Transplant 32 (2003) 694
77. Choi H.M., Lal B.K., Cerveira J.J., Padberg Jr. F.T., Silva M.B., et al. Durability and cumulative functional patency of transposed and nontransposed arteriovenous fistulas. J Vasc Surg 38 (2003) 1206-1212
78. Culp K., Flanigan M., Taylor L., and Rothstein M. Vascular access thrombosis in new hemodialysis patients. Am J Kidney Dis 26 (1995) 341-346
79. Fisher C.M., and Neale M.L. Outcome of surgery for vascular access in patients commencing haemodialysis. [see comment]. Eur J Vasc Endovasc Surg 25 (2003) 342-349
80. Shenoy S., Miller A., Petersen F., Kirsch W.M., Konkin T., Kim P., et al. A multicenter study of permanent hemodialysis access patency: beneficial effect of clipped vascular anastomotic technique. J Vasc Surg 38 (2003) 229-235
81. Xue J.L., Dahl D., Ebben J.P., and Collins A.J. The association of initial hemodialysis access type with mortality outcomes in elderly medicare ESRD patients. Am J Kidney Dis 42 (2003) 1013-1019
82. Yu A., Egberg N., and Jacobson S.H. Haemostatic complications in haemodialysis patients: effect of type of vascular access and dialysis filter. Scand J Clin Lab Invest 63 (2003) 127-133
83. Iorio B.R.D., Bellizzi V., Cillo N., Cirillo M., Avella F., Andreucci V.E., et al. Vascular access for hemodialysis: the impact on morbidity and mortality. J Nephrol 17 (2004) 19-25
84. Hazinedaroglu S.M., Tuzuner A., Ayli D., Demirer S., Duman N., and Yerdel M.A. Femoral vein transposition versus femoral loop grafts for hemodialysis: a prospective evaluation. Transplant Proc 36 (2004) 65-67
85. Kizilisik A.T., Kim S.B., Nylander W.A., and Shaffer D. Improvements in dialysis access survival with increasing use of arteriovenous fistulas in a Veterans Administration medical center. Am J Surg 188 (2004) 614-616
86. Perera G.B., Mueller M.P., Kubaska S.M., Wilson S.E., Lawrence P.F., and Fujitani R.M. Superiority of autogenous arteriovenous hemodialysis access: maintenance of function with fewer secondary interventions. Ann Vasc Surg 18 (2004) 66-73
87. Polkinghorne K.R., McDonald S.P., Atkins R.C., and Kerr P.G. Vascular access and all-cause mortality: a propensity score analysis. J Am Soc Nephrol 15 (2004) 477-486
88. Akoh J.A., Sinha S., Dutta S., Opaluwa A.S., Lawson H., Shaw J.F., et al. A 5-year audit of haemodialysis access. Int J Clin Prac 59 (2005) 847-851
89. Astor B.C., Eustace J.A., Powe N.R., Klag M.J., Fink N.E., and Coresh J. Type of vascular access and survival among incident hemodialysis patients: the choices for healthy outcomes in caring for ESRD (CHOICE) study. J Am Soc Nephrol 16 (2005) 1449-1455
90. Fitzgerald J.T., Schanzer A., McVicar J.P., Chin A.I., Perez R.V., and Troppmann C. Upper arm arteriovenous fistula versus forearm looped arteriovenous graft for hemodialysis access: a comparative analysis. Ann Vasc Surg 19 (2005) 843-850
91. Kawecka A., Debska-slizien A., Prajs J., Krol E., Zdrojewski Z., Przekwas M., et al. Remarks on surgical strategy in creating vascular access for hemodialysis: 18 years of one center's experience. Ann Vasc Surg 19 (2005) 590-598
92. Manns B., Tonelli M., Yilmaz S., Lee H., Laupland K., Klarenbach S., et al. Establishment and maintenance of vascular access in incident hemodialysis patients: a prospective cost analysis. J Am Soc Nephrol 16 (2005) 201-209
93. Ramage I.J., Bailie A., Tyerman K.S., McColl J.H., Pollard S.G., and Fitzpatrick M.M. Vascular access survival in children and young adults receiving long-term hemodialysis. Am J Kidney Dis 45 (2005) 708-714
94. Rooijens P.P., Burgmans J.P., Yo T.I., Hop W.C., de Smet A.A., van den Dorpel M.A., et al. Autogenous radial-cephalic or prosthetic brachial-antecubital forearm loop AVF in patients with compromised vessels?. A randomized, multicenter study of the patency of primary hemodialysis access. see comment. J Vasc Surg 42 (2005) 481-487
95. Ates A., Ozyazicioglu A., Yekeler I., Ceviz M., Erkut B., Karapolat S., et al. Primary and secondary patency rates and complications of upper extremity arteriovenous fistulae created for hemodialysis. Tohoku J Exp Med 210 (2006) 91-97
96. Roca-Tey R., Samon R., Ibrik O., Martinez-Cercos R., and Viladoms J. Functional vascular access evaluation after elective intervention for stenosis. J Vasc Access 7 (2006) 29-34
97. Woo K., Farber A., Doros G., Killeen K., and Kohanzadeh S. Evaluation of the efficacy of the transposed upper arm arteriovenous fistula: a single institutional review of 190 basilic and cephalic vein transposition procedures. J Vasc Surg 46 (2007) 94-101
98. Keuter X., De Smet A., Kessels A., van der Sande F., Welten R., and Tordoir J. A randomized multicenter study of the outcome of brachial-basilic arteriovenous fistula and prosthetic brachial-antecubital forearm loop as vascular access for hemodialysis. J Vasc Surg 47 (2008) 395-401
99. Egin A.A., Shabanov V.I., Chukhrienko S.T., Koshev V.I., and Petrov E.S. Formation of a vascular access in patients with terminal chronic renal insufficiency for hemodialysis based on the new general theory of circulation. [Russian]. Angiol Sosud Khir 9 (2003) 119-121
100. Giorcelli G., Tricerri A., and Vacha G. 20 years' experience with "difficult" vascular access. [Italian]. Minerva Urol Nefrol 50 (1998) 29-33
101. Keller F., Loewe H.J., Bauknecht K.J., Schwarz A., and Offermann G. Cumulative functional rates of orthoptic dialysis fistulas and interposition grafts. [German]. Dtsch Med Wochenschr 113 (1988) 332-336
102. Rodriguez J.A., Ferrer E., Olmos A., Codina S., Borrellas J., and Piera L. Analysis of the survival of permanent vascular access ports. [Spanish]. Nefrologia 21 (2001) 260-273
103. Atkins D., Best D., Briss P.A., Eccles M., Falck-Ytter Y., Flottorp S., et al. Grading quality of evidence and strength of recommendations. BMJ 328 (2004) 1490
104. Furukawa T.A., Watanabe N., Omori I.M., Montori V.M., and Guyatt G.H. Association between unreported outcomes and effect size estimates in Cochrane meta-analyses. JAMA 297 (2007) 468-470