Publications by authors named "Ahmed El Hefnawy"

Background: The purpose of this article was to assess the recoverability of bladder, in a subset of patients with uremia, planned for live-donor kidney transplantation.

Methods: Patients referred to the Voiding Dysfunction Unit for evaluation, prior to transplantation, were included in this study during the period 2004 to 2008 in a single institution with a track record in live-donor transplantation. Defunctionalized bladder was defined as patients with complete anuria or oliguria for at least 6 months.

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Introduction And Hypothesis: Interstitial cystitis/bladder pain syndrome (IC/BPS) is a condition characterized by chronic inflammation that affects the bladder. The study was aimed at evaluating the effectiveness of intravesical platelet-rich plasma (PRP) injections in patients with IC/BPS.

Methods: We conducted a comprehensive search strategy to involve studies that investigate the efficacy of intravesical PRP injections or instillations over different time intervals.

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Hepatitis C virus (HCV) is the most common infection worldwide. The correlation between HCV and renal cell carcinoma (RCC) is still mysterious. Therefore, the relationship between HCV and RCC was investigated.

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Objective: The aim of this study was to evaluate the feasibility of intravesical instillation of platelet-rich plasma (PRP) to treat interstitial cystitis/bladder pain syndrome (IC/BPS).

Materials And Methods: Twenty PRP samples were tested in vitro for stability after exposure to urine samples with different pH. A pilot study involving 21 female patients with IC/BPS was conducted, and 6 weekly doses of autologous PRP (50 mL) were administered.

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Objectives: To predict response of patients with muscle invasive bladder cancer (MIBC) to neoadjuvant chemotherapy (NAC) through analysis of molecular profile assessed clinically (radiologically and by pathological examination of transurethral resection biopsy [TURBT] specimens) and definitively with histopathological examination after radical cystectomy (RC).

Methods: In a prospective study, tumor biopsies were obtained from patients with urothelial MIBC (T2-4a N0-2 M0) during TURBT. Patients were eligible for RC received 4 cycles of cisplatin-based NAC.

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Objective: To compare the outcome and morbidity of bipolar transurethral enucleation of the prostate (B-TUEP) and thulium laser enucleation of the prostate (ThuLEP) with those of holmium laser enucleation of the prostate (HoLEP) in the treatment of large symptomatic benign prostatic obstruction (BPO) through a non-inferiority randomized controlled trial (NCT03916536).

Patients And Methods: A total of 155 patients were recruited from a single centre between February 2019 and August 2020. All had BPO, with a prostate volume ≥80 ml.

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Purpose: Cystoscopy (rigid/flexible [FC]) is the standard surveillance tool for non-muscle invasive bladder cancer (NMIBC). Nevertheless, it has its drawbacks. The objective of this study is to evaluate the performance of microscopic hematuria (MH), abdominal ultrasonography (US), and urine cytology (UC) as potential substitutes for FC in patients with T1-low-grade (T1-LG) NMIBC.

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Objectives: To identify cystourethrogram (CUG) findings that independently predict the outcome of posterior urethroplasty (PU) following pelvic fracture urethral injury (PFUI).

Methods: Findings of CUG included the location of the proximal end of the bulbar urethra in zones A (superficial) or B (deep) according to its relationship with the pubic arch. Others included the presence of pelvic arch fracture, bladder neck, and posterior urethral appearance.

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Background: Hepatocellular carcinoma (HCC) is one of the most prevalent malignancies in Egypt. HCCs usually have a poor prognosis because of late diagnosis, aggressive metastasis, and early invasion. Heterogeneous ribonucleoproteins (HnRNPs) are nuclear proteins that play a variety of roles in telomere formation, DNA repair, cell signaling, and gene regulation.

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Objectives: This study is aimed to investigate the outcome of one-stage ureteroscopy (URS) and percutaneous nephrolithotomy (PCNL) for simultaneous ureteral and renal stones over 10years at a tertiary urology institute.

Materials And Methods: We retrospectively analyzed the data of patients who were operated on for simultaneous ureteral and renal stones from January 2011 to December 2020. Patients were divided into 2 groups: group A, who underwent one-stage URS and prone PCNL, and group B, who underwent staged procedures.

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Objective: To evaluate female sexual function (FSF) after renal transplantation (RT) and compare it to an age-matched normal females (control).

Material And Methods: The study included 100 sexually active RT females in child-bearing period. Sexual function was evaluated with Female Sexual Function Index (FSFI).

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Objectives: To examine the durability of continent cutaneous catheterizable urinary channels (CCCC) in children and assess whether channel complications continue to arise with extended follow-up. Previous studies demonstrated that complications of CCCC cluster in the early years following surgery.

Methods: The database of a tertiary center was queried for patients≤21 years who underwent CCCC.

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Introduction: Increasing abdominal pressures could affect pulmonary compliance and cardiac performance, a fact based on which the aim of the present study to detect the cardiopulmonary burden of multiple retractors application during supine versus lateral abdominal surgeries. We hypothesized that surgical ring multiple retractors application would affect the pulmonary and cardiac functions during both lateral and supine abdominal surgeries.

Methods: Prospective observational comparative study on forty surgical patients subdivided into two groups twenty each, comparing pulmonary compliance and cardiac performance before, during and after retractors application, group (S) supine position cystectomy surgery, and group (L) lateral position nephrectomy surgery under general anesthesia, Composite 1ry outcome; dynamic compliance C-dyn and cardiac index CI and Other outcome variables ICON cardio-meter were also recorded.

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Background: To construct a modified model for reporting and grading of postoperative complications after the mid-urethral sling (MUS) procedure based on the Clavien-Dindo classification. In addition, complications of three different types of MUS were compared.

Materials And Methods: A PubMed search for postoperative complication after MUS was carried out for the period between January 1990 and July 2018.

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Objective: To present long-term outcome of Yang-Monti ileal ureter, with a focus on patients with mild/moderate loss of kidney function and solitary kidney.

Patients And Methods: Between March 2001 and December 2019, Yang-Monti ileal ureter was performed on 36 patients with ureteric defects and median age 46.5 years.

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Article Synopsis
  • The study evaluated surgical complications, febrile urinary tract infections (UTIs), graft function, and 5-year graft survival rates in renal transplant patients who had undergone augmentation cystoplasty (AC), comparing them to those with normal urinary tracts.
  • Results showed no significant difference in surgical complications or hospital readmission between AC patients, though those with normal tracts had fewer surgical issues and febrile UTIs.
  • While patients with AC had more complications and UTI episodes, their 5-year graft survival rates were similar to the control group, suggesting that ureterocystoplasty (UC) is preferred when augmentation is necessary.
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Purpose: We assessed the effect of mebeverine in the enhancement of the orthotopic bladder substitute continence.

Materials And Methods: A randomized trial was carried out for incontinent adult male patients during the first year post-orthotopic bladder substitute surgery. Patients were allocated to receive mebeverine 135 mg or placebo 3 times a day for only 3 months.

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Purpose: To study the effect of intravesical instillation of botulinum neurotoxin-A (BoNT-A) combined with low energy shock wave (LESW) for treatment of overactive bladder (OAB) in a rat model and to investigate its effect on the associated inflammatory and oxidative stress process.

Material And Methods: Forty rats were subdivided into four equal groups: normal control group, OAB group, LESW group, and BoNT-A plus LESW group. Cystometrogram (CMG) changes and histopathological changes in the bladder mucosa were assessed in the different groups.

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Forensic entomologists rely on laboratory growth data to estimate the time of colonization on human remains thus extrapolating a minimum postmortem interval (PMI) if assumptions are satisfied. The flesh fly Blaesoxipha plinthopyga (Wiedemann) is one species that occurs in casework in Idaho, Texas, and central California. Because of the few laboratory studies on the development of this fly, the following study was conducted to determine if different substrates impact immature development of the species.

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Objective: To evaluate safety and efficacy of trigone-involved Botox injections in comparison with trigone-sparing injections in refractory idiopathic overactive bladder (OAB).

Materials And Methods: One hundred and three patients randomly received a 100-IU intradetrusal injection of Botox either sparing the trigone (52 patients) or involving the trigone (51 patients). Patients were prospectively evaluated at 1, 3, and 6 months.

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Objective: To determine the relationship between subcutaneous fat, visceral fat surface area (VFA), bladder wall fat distribution, and visceral adiposity index (VAI) as risk factors for overactive bladder (OAB) occurrence.

Patients And Methods: A cross-sectional study involved 157 participants was conducted. The participants were divided into 2 groups; study group (87 patients diagnosed with OAB) and control group (70 healthy participants).

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Flesh flies are major primary consumers of carrion and are commonly found on human remains. Due to this latter feeding habit, their development rates can be used to provide temporal information in forensic investigations. This is usually done by referencing published flesh fly development datasets.

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Purpose: We studied the effect of oxybutynin on bladder and upper urinary tract outcomes in infants following posterior urethral valve ablation.

Materials And Methods: Patients younger than 12 months old who had undergone primary endoscopic valve ablation for posterior urethral valves were screened for eligibility. Patients who had undergone urinary diversion or had other conditions that could affect lower urinary tract function were excluded.

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