Publications by authors named "Jacob Ben-Chaim"

Introduction: The reasons for performing a circumcision among males after the neonatal period are usually cultural or medical. We aimed to evaluate parental regret for providing consent and to identify factors associated with such regret.

Methods: Included were the parents of males aged 6 months to 18 years who underwent circumcision under general anesthesia at a single center between 2/2017 and 01/2023.

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Objectives: to assess the association between delivery mode and causative pathogens of infants with urinary tract infections.

Materials And Methods: We conducted a retrospective analysis of the medical records of neonates delivered in a tertiary academic pediatric hospital and diagnosed with urinary tract infections between January 1,2013 and December 31,2017. Excluded were newborns with urinary tract infections post-urological procedures or neurogenic bladders.

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Background: Megameatus intact prepuce (MIP) variant is considered a surgical challenge with associated high complication rates. It is usually diagnosed and corrected only after neonatal circumcision, which is discouraged in non-MIP hypospadias.

Objective: In order to determine whether the features of the MIP variant or the performance of a secondary reconstruction following circumcision comprise the cause of higher complication rates, we now compared the results of post-circumcision MIP hypospadias repair to the results of children who underwent repair of non-MIP hypospadias following neonatal circumcision.

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Introduction: The association between blood markers and testicular viability after testicular torsion (TT) is not well known. We evaluated the role of complete blood count markers and C-reactive protein (CRP) in predicting testicular viability after TT.

Methods: Fifty men, ≥18 years of age, operated for TT between the years 2015-2020 were enrolled.

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Background: Exstrophy-epispadias complex (EEC) is a complex malformation of the lower abdominal wall, bladder, and pelvic floor, which necessitates multiple successive reconstruction procedures. Surgical and infectious complications are frequent. Our aim was to evaluate kidney function in these patients.

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Article Synopsis
  • The study aimed to evaluate continence and voiding rates in patients with exstrophy-epispadias after bladder neck reconstruction, assessing factors predicting continence.
  • It included data from 27 patients, with a follow-up of around 8 years, finding that 33% achieved full continence and 67% achieved social continence.
  • A preoperative bladder capacity of 110 mL or more was identified as a significant predictor for achieving social continence.
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Purpose: To present the results of hypospadias repair in the absence of preputial skin following neonatal circumcision, and the analyses of surgical techniques and predictors of procedural success.

Methods: Records of all children who underwent hypospadias repair between 10/1999 and 12/2018 were retrospectively reviewed. All of those who underwent neonatal circumcision prior to surgery were included.

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Purpose: Revision surgery for the removal of excess foreskin after circumcision is a common procedure. The decision regret scale (DRS) is a validated questionnaire which assesses regret after medical decision making. The aim was to evaluate parental regret by means of the DRS and querying about factors associated with regret about deciding to revise their child's circumcision.

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Objective: To evaluate whether meatal stenosis treated concomitantly with urethral fistula repair alters the results of fistula closure.

Methods: A retrospective cohort study, included were all children who underwent local fistula closure following hypospadias repair between 2006 and 2017. Patients who underwent reoperative urethroplasty were excluded.

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Study Design: A retrospective cohort study.

Objectives: To document the prevalence of asymptomatic bacteriuria and to characterize the resistance patterns to antibiotics among children with neurogenic bladder who require clean intermittent catheterization, with an emphasis on multidrug resistance.

Setting: A national referral pediatric and adolescent rehabilitation facility in Jerusalem, Israel.

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Background: Megameatus intact prepuce (MIP) is a rare variant of hypospadias. Unlike the hooded ventrally absent prepuce in non-MIP hypospadias, the prepuce in MIP hypospadias is fully circumferential and intact. The distal urethra remains wide with a deep glanular groove.

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Penile surgery is commonly performed in pediatric surgical centers. There is no consensus regarding which analgesic method is most effective in controlling pain in these children. Consecutive children between 4 months and 16 years of age who underwent elective penile surgery were recruited.

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Objective: To evaluate the success rates of a simple posthypospadias urethrocutaneous fistula repair.

Study Design: We evaluated children who underwent urethrocutaneous fistula closure by means of a simple standard technique in which the fistula tract was dissected to its base and resected and the urethral defect closed with a single layer of continuous sutures and covered with local subcutaneous tissue. No urethral stents or catheters were used, and the patients were discharged on the same day.

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Introduction: Meatal stenosis (MS) is a common finding in circumcised children. Indication for surgical correction is based on urinary symptoms such as strength and direction of urine stream as well as physical examination, including direction and caliber of the urinary stream. There is no objective grading of MS severity, and therefore indications for surgery and management protocols are vague.

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Background: There are scant data reporting postoperative ultrasonographically measured bladder volumes in children undergoing penile surgery.

Study Question: We studied the effect of various anesthesia techniques on return of micturition after penile surgery in children, using ultrasonographically measured bladder volumes.

Data Sources: Ultrasonographically measured postvoiding residual bladder volumes indexed to age-appropriate capacity, and time elapsed between the end of surgery and spontaneous voiding after pediatric circumcision, distal hypospadias repair, or repair of urethrocutaneous fistula, were studied.

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Background: Strong evidence suggests that in order to prevent irreversible testicular damage surgical correction (orchidopexy) for undescended testis (UDT) should be performed before the age of 1 year.

Objectives: To evaluate whether orchidopexy is delayed in our medical system, and if so, to explore the pattern of referral for orchidopexy as a possible contributing factor in such delays.

Methods: We conducted a retrospective chart review of all children who underwent orchidopexy for UDT between 2003 and 2013 in our institution.

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Article Synopsis
  • The study aimed to evaluate the effectiveness of the modified Cantwell-Ransley (MCR) technique in repairing epispadias, involving a review of cases from 1998 to 2015.
  • A total of 22 children underwent the MCR procedure, with 16 having exstrophy-epispadias complex (EEC) and 6 having isolated epispadias, with repairs done at various ages.
  • Results showed no complications in the isolated epispadias group and a few in the EEC group, all of which were managed successfully, indicating that the MCR technique is a strong option for these repairs.
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Introduction: Adequate penile length in males with bladder exstrophy or epispadias is a major challenge. Kelly previously described a surgical technique of a single stage reconstruction for patients with exstrophy or epispadias that potentially achieves significant penile lengthening by completely detaching the insertion of the corpora cavernosa from the ischiopubic rami. However, because of the possibility of damage to the pudendal neurovascular supply that may lead to partial or complete penile loss, this technique has not gained popularity.

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Objective: Our institutional protocol for the treatment of exstrophy-epispadias complex includes routine endoscopic and cystographic evaluation of the bladder with the child under general anesthesia. The protocols briefly described in the literature include a cystographic evaluation and the measurement of bladder capacity, but there are no reports on concurrent endoscopic findings and the value of examinations in this setting. Our objective is to evaluate the role and necessity of our management protocol by reviewing the findings in our patients' medical charts.

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Purpose: Exstrophy reconstruction is challenging and requires expertise and experience. However, many patients are treated at low volume centers. We evaluated whether classic bladder exstrophy could be safely and successfully reconstructed at a low volume center.

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Bedwetting is a very common condition affecting about 15% of children 6 years of age, and is considered one of the main reasons for referrals to pediatricians. Bedwetting is a medical situation and should be managed by physicians. A child wetting his bed is distressing and this has a deep impact on the child's behavior and it is also very stressful for the parents.

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Article Synopsis
  • The study aimed to analyze non-contrast-enhanced computed tomography (NCCT) findings after percutaneous nephrolithotomy (PNL) to assess clinical significance and stone clearance.
  • Evaluating 100 patients, common post-PNL NCCT findings included hydronephrosis (70%) and pleural effusion (52%), with some patients requiring a second procedure for further stone clearance.
  • Key results showed that perinephric fluid and ipsilateral pleural effusion significantly predicted longer hospitalization and recovery times, although the overall complication rate was low at 12%.
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Article Synopsis
  • The study evaluates the long-term outcomes of early endoscopic realignment (EER) for complete posterior urethral disruption, primarily caused by road accidents or falls.
  • It involved 11 patients, all of whom experienced no incontinence post-operation, but 45% developed urethral strictures, with mixed results from subsequent treatments.
  • The findings suggest EER is a beneficial alternative to traditional methods, emphasizing the need for better patient selection to enhance outcomes.
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Objectives: To present the results of ventral plication for the repair of dorsal curvature.

Methods: A total of 33 patients (mean age 38 months, range 7 months to 15 years) with a dorsal curvature of >30 degrees degrees underwent ventral plication. A subcoronal incision was performed, followed by degloving of the skin to the penile base.

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