Introductie, materialen & referenties

[1] van Gelderen HH, Vermeer-de Bondt PE. [Prevalence of undescended testis in the first 4 years of life; a longitudinal study]. Nederlands tijdschrift voor geneeskunde 1986;130(35):1567-70

[2] de Muinck Keizer-Schrama SM. [Consensus on management of the undescended testis]. Nederlands tijdschrift voor geneeskunde 1987;131(41):1817-21

[3] Venlet-Melchior CJ, Hirasing RA. [Significance of the registration of testis localization in child health services for the avoidance of unnecessary orchiopexies]. Nederlands tijdschrift voor geneeskunde 1989;133(42):2084-6

[4] Horstink-uit de Weerd BR, Filedt Kok-Weimar TL, Leerdam F. Protocollering binnen de JGZ: testesonderzoek. 2004

[5] Ghirri P, Ciulli C, Vuerich M, Cuttano A, Faraoni M, Guerrini L, Spinelli C, Tognetti S, Boldrini A. Incidence at birth and natural history of cryptorchidism: a study of 10,730 consecutive male infants. Journal of endocrinological investigation 2002;25(8):709-15

[6] SCORER CG. THE DESCENT OF THE TESTIS. Archives of disease in childhood 1964;39(208):605-9

[7] Berkowitz GS, Lapinski RH, Dolgin SE, Gazella JG, Bodian CA, Holzman IR. Prevalence and natural history of cryptorchidism. Pediatrics 1993;92(1):44-9

[8] Cryptorchidism: a prospective study of 7500 consecutive male births, 1984-8. John Radcliffe Hospital Cryptorchidism Study Group. Archives of disease in childhood 1992;67(7):892-9

[9] Acerini CL, Miles HL, Dunger DB, Ong KK, Hughes IA. The descriptive epidemiology of congenital and acquired cryptorchidism in a UK infant cohort. Archives of disease in childhood 2009;94(11):868-72

[10] Boisen KA, Kaleva M, Main KM, Virtanen HE, Haavisto A-M, Schmidt IM, Chellakooty M, Damgaard IN, Mau C, Reunanen M, Skakkebaek NE, Toppari J. Difference in prevalence of congenital cryptorchidism in infants between two Nordic countries. Lancet (London, England) 2004;363(9417):1264-9

[11] Preiksa RT, Zilaitiene B, Matulevicius V, Skakkebaek NE, Petersen JH, Jørgensen N, Toppari J. Higher than expected prevalence of congenital cryptorchidism in Lithuania: a study of 1204 boys at birth and 1 year follow-up. Human reproduction (Oxford, England) 2005;20(7):1928-32

[12] Sijstermans K, Hack WWM, van der Voort-Doedens LM, Meijer RW, Haasnoot K. Puberty stage and spontaneous descent of acquired undescended testis: implications for therapy? International journal of andrology 2006;29(6):597-602

[13] Eijsbouts SW, de Muinck Keizer-Schrama SMPF, Hazebroek FWJ. Further evidence for spontaneous descent of acquired undescended testes. The Journal of urology 2007;178(4 Pt 2):1726-9

[14] Lee PA. Fertility after cryptorchidism: epidemiology and other outcome studies. Urology 2005;66(2):427-31

[15] Lee PA. Fertility in cryptorchidism. Does treatment make a difference? Endocrinology and metabolism clinics of North America 1993;22(3):479-90

[16] Lee PA, Coughlin MT. The single testis: paternity after presentation as unilateral cryptorchidism. The Journal of urology 2002;168(4 Pt 2):1680-2; discussion 1682-3

[17] Dieckmann K-P, Pichlmeier U. Clinical epidemiology of testicular germ cell tumors. World journal of urology 2004;22(1):2-14

[18] Pettersson A, Richiardi L, Nordenskjold A, Kaijser M, Akre O. Age at surgery for undescended testis and risk of testicular cancer. The New England journal of medicine 2007;356(18):1835-41

[19] Baker LA, Docimo SG, Surer I, Peters C, Cisek L, Diamond DA, Caldamone A, Koyle M, Strand W, Moore R, Mevorach R, Brady J, Jordan G, Erhard M, Franco I. A multi-institutional analysis of laparoscopic orchidopexy. BJU international 2001;87(6):484-9

[20] Chang B, Palmer LS, Franco I. Laparoscopic orchidopexy: a review of a large clinical series. BJU international 2001;87(6):490-3

[21] Elder JS. Two-stage Fowler-Stephens orchiopexy in the management of intra-abdominal testes. The Journal of urology 1992;148(4):1239-41

[22] Horasanli K, Miroglu C, Tanriverdi O, Kendirci M, Boylu U, Gumus E. Single stage Fowler-Stephens orchidopexy: a preferred alternative in the treatment of nonpalpable testes. Pediatric surgery international 2006;22(9):759-61

[23] Russinko PJ, Siddiq FM, Tackett LD, Caldamone AA. Prescrotal orchiopexy: an alternative surgical approach for the palpable undescended testis. The Journal of urology 2003;170(6 Pt 1):2436-8

[24] Ritzén EM, Bergh A, Bjerknes R, Christiansen P, Cortes D, Haugen SE, Jörgensen N, Kollin C, Lindahl S, Läckgren G, Main KM, Nordenskjöld A, Rajpert-De Meyts E, Söder O, Taskinen S, Thorsson A, Thorup J, Toppari J, Virtanen H. Nordic consensus on treatment of undescended testes. Acta paediatrica (Oslo, Norway : 1992) 2007;96(5):638-43

[25] Ritzén EM. Undescended testes: a consensus on management. European journal of endocrinology 2008;159 Suppl 1():S87-90

[26] Dayanc M, Kibar Y, Irkilata HC, Demir E, Tahmaz L, Peker AF. Long-term outcome of scrotal incision orchiopexy for undescended testis. Urology 2007;70(4):786-8; discussion 788-9

[27] Al-Saied G. Balloon inflation-created subdartos pouch during orchiopexy: a new simplified technique. Pediatric surgery international 2008;24(10):1187-90

[28] Thorup J, Haugen S, Kollin C, Lindahl S, Läckgren G, Nordenskjold A, Taskinen S. Surgical treatment of undescended testes. Acta paediatrica (Oslo, Norway : 1992) 2007;96(5):631-7

[29] Merguerian PA, Mevorach RA, Shortliffe LD, Cendron M. Laparoscopy for the evaluation and management of the nonpalpable testicle. Urology 1998;51(5A Suppl):3-6

[30] Esposito C, Garipoli V. The value of 2-step laparoscopic Fowler-Stephens orchiopexy for intra-abdominal testes. The Journal of urology 1997;158(5):1952-4; discussion 1954-5

[31] Toppari J, Kaleva M. Maldescendus testis. Hormone research 1999;51(6):261-9

[32] Arbous MS, Grobbee DE, van Kleef JW, de Lange JJ, Spoormans HH, Touw P, Werner FM, Meursing AE. Mortality associated with anaesthesia: a qualitative analysis to identify risk factors. Anaesthesia 2001;56(12):1141-53

[33] Tan SS, Bouwmans C, Hakkaart- van Roijen L. Handleiding Voor Kostenonderzoek Methoden En Standaard Kostprijzen Voor Economische Evaluaties in de Gezondheidszorg Tijdschrift voor gezondheidswetenschappen 2012/09/01;90():

[34] Oostenbrink JB, Bouwmans CAM, Koopmanschap MA, Rutten FFH. Handleiding Voor Kostenonderzoek Methoden En Standaard Kostprijzen Voor Economische Evaluaties in de Gezondheidszorg College voor zorgverzekeringen 2004

[35] Hsieh MH, Roth DR, Meng MV. Economic analysis of infant vs postpubertal orchiopexy to prevent testicular cancer. Urology 2009;73(4):776-81

[36] Miller KD, Coughlin MT, Lee PA. Fertility after unilateral cryptorchidism. Paternity, time to conception, pretreatment testicular location and size, hormone and sperm parameters. Hormone research 2001;55(5):249-53

[37] Virtanen HE, Cortes D, Rajpert-De Meyts E, Ritzén EM, Nordenskjöld A, Skakkebaek NE, Toppari J. Development and descent of the testis in relation to cryptorchidism. Acta paediatrica (Oslo, Norway : 1992) 2007;96(5):622-7

[38] Virtanen HE, Bjerknes R, Cortes D, Jørgensen N, Rajpert-De Meyts E, Thorsson AV, Thorup J, Main KM. Cryptorchidism: classification, prevalence and long-term consequences. Acta paediatrica (Oslo, Norway : 1992) 2007;96(5):611-6

[39] Bergh A, Söder O. Studies of cryptorchidism in experimental animal models. Acta paediatrica (Oslo, Norway : 1992) 2007;96(5):617-21

[40] Kollin C, Hesser U, Ritzén EM, Karpe B. Testicular growth from birth to two years of age, and the effect of orchidopexy at age nine months: a randomized, controlled study. Acta paediatrica (Oslo, Norway : 1992) 2006;95(3):318-24