Critical response time (time available to implement effective measures for epidemic control): model building and evaluation.

The time available to implement successful control measures against epidemics was estimated. Critical response time (CRT), defined as the time interval within which the number of epidemic cases remains stationary (so that interventions implemented within CRT may be the most effective or least costly), was assessed during the early epidemic phase, when the number of cases grows linearly over time. The CRT was calculated from data of the 2001 foot-and-mouth disease (FMD) epidemic that occurred in Uruguay. Significant regional CRT differences (ranging from 1.4 to 2.7 days) were observed. The CRT may facilitate selection of control measures. For instance, a CRT equal to 3 days would support the selection of measures, such as stamping-out, implementable within 3 days, but rule out measures, such as post-outbreak vaccination, because intervention and immunity building require more than 3 days. Its use in rapidly disseminating diseases, such as FMD, may result in regionalized decision-making.

Hypospadias repair in adults: adventures and misadventures.

PURPOSE: To evaluate long-term results and complications we reviewed the records of 42 consecutive men 18 to 47 years old (mean age 22.5) who underwent hypospadias repair between 1979 and 1999. MATERIALS AND METHODS: The study population was divided into groups 1 consisting of 8 patients without previous hypospadias surgery, 2 consisting of 12 who underwent 1 or more procedures in childhood but in whom local tissue was relatively intact and 3 consisting of 22 who underwent multiple unsuccessful hypospadias repairs with various degrees of penile deformity and loss of local tissue. RESULTS: Complications were noted in 3 of 8 (37.5%), 5 of 12 (41.67%) and 14 of 22 (63.6%) patients in groups 1 to 3, including 3 (100%), 4 (80%) and 10 (71.4%), respectively, in whom secondary surgery was successful in the long term. A patient in group 2 and 2 in group 3 await further surgery, while 2 in group 3 were lost to followup. Overall primary complications developed in 22 of the 42 men (52.3%) and 5 of the 22 (22.7%) had secondary complications. There was long-term success in 37 of 42 cases (88.1%). CONCLUSIONS: The results of hypospadias repair in adulthood differ from the results of similar procedures in childhood. Although the various techniques are similar, there is clearly a difference in terms of wound healing, infection, complication rates and overall success. Adults undergoing hypospadias repair must be counseled on all of these variables to avoid unreasonable expectations.

The koro (genital retraction) syndrome and its association with infertility: a case report.

The koro syndrome is a psychiatric disorder characterized by acute anxiety and a deep-seated fear of shrinkage of the penis and its ultimate retraction into the abdomen, which will cause death. Concurrence of the koro (genital retraction) syndrome with a pathological condition of the urogenital system has rarely been described. We report a case of koro associated with infertility. Within 3 weeks of treatment with haloperidol the classic symptoms of koro disappeared. To our knowledge this case represents the sixth report of the koro syndrome associated with urogenital pathology and the first report of its association with infertility.

Preoperative laparoscopic localization of the nonpalpable testis: a critical analysis of a 10-year experience.

Laparoscopy was performed on 107 patients 8 months to 18.5 years old (mean age 46.9 months) with 119 nonpalpable testes. The procedure accurately determined the location of the gonad in 95.3% of the patients, while 16 were spared formal surgical exploration with the laparoscopic visualization of blind-ending spermatic vessels and vasa deferentia. Additionally, patency of the internal inguinal ring, determined laparoscopically, was an accurate predictor of testicular salvageability. We advocate the use of laparoscopy for all boys with a nonpalpable gonad in conjunction with operative intervention if necessary.

Congenital urethrocutaneous fistulas.

We report on 2 cases of congenital urethrocutaneous fistulas in otherwise normal children. There were no associated congenital anomalies. Satisfactory surgical results were obtained. Potential causes are discussed.

Efficacy of orchiopexy by patient age 1 year for cryptorchidism.

We evaluated 77 male patients with true cryptorchidism ranging from 2 to 46 months old to determine whether orchiopexy could be performed safely and efficiently, and whether treatment was helpful in patients less than 1 year old. Our results indicate that orchiopexy in patients younger than 1 year is safe, effective and beneficial, and optimizes treatment of this condition.

Unilateral testicular torsion: abnormal histological findings in the contralateral testis--cause or effect?

A histological review of testicular biopsies of the contralateral testis, obtained at the time of surgical intervention for testicular torsion, was performed in 20 post-pubertal men. Contralateral histological abnormalities were found in 12 specimens. The duration of torsion correlated well with the viability of the involved testis but not with the presence of contralateral abnormalities. The high incidence of contralateral histological abnormalities and their nature suggest that they existed prior to the torsion since they would be unlikely to appear at such an early stage. We believe that some patients who suffer testicular torsion probably have congenital anomalies of both testes. These abnormalities involve testicular parenchyma as well as the suspension system.