Sage Journals: Discover world-class research

Abstract

Italian

This works gives the results of an epidemiological survey on the frequency of cryptorchidism carried out from 1988–1994 in the Hospital of Cittadella (Padua) on 3185 newborn. These babies were examined again by the same operator at 3-6-12 months. Standard criteria were used in defining cryptorchidism. Fifty-seven newborn (1.79%) were cryptorchid. The rate was much higher at birth for hypodystrophic and pre-term infants. The frequency descended to 1.17% and 1.15% respectively at 6 and 12 months, when the difference between the frequency of cryptorchidism in pre-term and underweight infants was no longer statistically significant compared to eutrophic and full-term babies. In conclusion, it may be confirmed that the incidence of this malformation is around 1% at one year old, as reported in literature. The spontaneous complete descent of the cryptorchid testis occurred before the 3rd-6th month and the descents recorded after that date are not significant.

Keywords

cryptorchidism epidemiology

Get full access to this article

View all access options for this article.

References

Frey

H.L.

Rajfer

: Incidence of cryptorchidism. Urol. Clin. North Am., 9: 327–329, 1982.

Bernasconi

Ferzetti

Mastropietro

Ardenti Monni

Gaggiano

Volta

: Criptorchidismo: fisiopatologia e diagnosi. Atti Workshop “Andrologia dell'infanzia e dell'adolescenza” 10–20, Torino, 8 ottobre 1994.

Chilvers

Dudley

N.E.

Gough

M.H.

Jackson

M.B.

Pide

M.C.

: Undescended testis: the effect of treatment on subsequent risk of subfertility and malignancy. J. Pediatr. Surg., 21: 691–696, 1986.

Fallon

Kennedy

T.J.

: Long-term follow-up of fertility in cryptorchid patients. Urology, 25: 502–504, 1985.

Gendrel

Roger

Job

J.C.

: Plasma gonadotropins and testosterone values in infants with cryptorchidism. J. Pediat., 97: 217, 1980.

Isidori

: Il futuro del bambino criptorchide. Atti del 6° Congr. SIEDP, 25–28, 1987.

Puri

O’ Donnell

: Semen analysis in patients operated on for impalpable testes. Br. J. Urol., 66: 646–647, 1990.

Elder

: Criptorchidismo isolato o associato ad altri difetti. La Clinica Pediatrica del Nord America, 22(1): 272–298, 1990.

Griffin

J.E.

Wilson

J.D.

: Disorders of the testes and the male reproductive tract. In: Williams textbook of endocrinology. 8th ed., 820–822, 1922.

10.

Scorer

C.G.

Farrington

G.H.

: Congenital deformities of the testis and epididymis. New York, Appleton-Century-Crofts, 1971.

11.

Scorer

C.G.

: The descent of the testis. Arch. Dis. Childh., 39: 605, 1694.

12.

John Radcliffe Cryptorchidism Study Group: Cryptorchidism: a prospective study of 7500 consecutive male births 1984–8. Arch. Dis. Child., 67: 892–899, 1992.

13.

Berkowitz

G.S.

: Prevalence and natural history of cryptorchidism. Pediatrics, 92(1): 44–49, 1993.

14.

Buemann

Henriksen

Villumsen

A.L.

Westh

Zachau-Chrisiansen

: Incidence of undescended testis in the newborn. Acta Chir. Scand., 283 (suppl.): 289–293, 1961.

15.

Cour Palais

I.J.

: Spontaneous descent of the testicle. Lancet, 1: 1403–1405; 1966.

16.

Baumrucker

G.O.

: Incidence of testicular pathology. Bull. U.S. Army Med. Dept., 5: 312–314, 1946.

17.

Simpson

A.S.

Laugesen

Silva

P.A.

Stewart

Wolton

: The prevalence of retained testes in Dunedin. N.Z. Med. J., 98: 758–760, 1985.

18.

Chilvers

Pike

M.C.

Forrnan

Fogelman

Wadsworth

M.E.J.

: Apparent doubling of frequency of undescended testis in England and Wales in 1962–81. Lancet, 2: 330–332, 1984.

19.

Morley

Lucas

: Undescended testes in low birth-weight infants. Br. Med. J., 295: 753, 1987.

20.

Atwell

J.D.

: Ascent of the testis: fact or fiction. Br. J. Urol., 57: 474–477, 1985.

21.

Robertson

J.F.R.

Amzy

A.F.

Cochram

: Assent to ascent of the testis. Br. J. Urol., 61: 146–147, 1988.

22.

Canlorbe

Borniche

: La cryptorchidie. Arch. Franc. Pediatr., 31: 145, 1974.

Cryptorchidism: Prevalence at Birth and Testicular Post-Natal Descent

Abstract

Keywords

Get full access to this article

References