Publications by authors named "Hammad Ather"

Traditionally, high energy physics (HEP) experiments have relied on x86 CPUs for the majority of their significant computing needs. As the field looks ahead to the next generation of experiments such as DUNE and the High-Luminosity LHC, the computing demands are expected to increase dramatically. To cope with this increase, it will be necessary to take advantage of all available computing resources, including GPUs from different vendors.

View Article and Find Full Text PDF

Purpose: Following transurethral resection of the prostate (TURP), there is no clear recommendation for the catheter duration, and objective criteria are needed to determine appropriate time for trial off catheter. Current study is aimed to identify the high-risk patients for failed trial off catheter and the association with preoperative voiding efficiency with postoperative failed trial without catheter.

Methodology: This is cross-sectional single institutional study.

View Article and Find Full Text PDF
Article Synopsis
  • Experts met to discuss the best ways to treat urinary stones at a conference in Spain in January 2024.
  • For 1.5 cm kidney stones, two treatments called m-PCNL and RIRS work well, but m-PCNL is cheaper and quicker, while RIRS has fewer side effects.
  • Doctors need to be careful with patients on certain medications, as some treatments might cause more bleeding, and they should also make sure to test for infections before and after surgery.
View Article and Find Full Text PDF

Objective: To determine if the STONE score is a predictor of blood transfusion and if patient-related factors, i.e., the presence of comorbidities such as urinary tract infection and obesity, can predict blood transfusion post-percutaneous nephrolithotomy.

View Article and Find Full Text PDF

Background This study aimed to translate the Bladder Cancer Index (BCI) questionnaire to Urdu and validate it to assess the quality of life of patients with bladder cancer. Material and methods After forward and backward translation of the BCI questionnaire into Urdu, content validity was calculated using the content validity index (CVI) based on input from five health experts regarding the clarity and relevance of the questionnaire. Construct validity was measured by comparing the inter-scale domains and subdomains of BCI and by comparing BCI with Short Form 36 (SF-36) using correlations.

View Article and Find Full Text PDF

Objective: To compare the operative and fluoroscopy time in two different methods of ureteral stent insertion before prone percutaneous nephrolithotomy (PCNL).

Materials And Method: Over 12 months, 124 patients with urolithiasis who went through prone PCNL were included in our study. All the patients had kidney stones and were divided into two groups based on the method of ureteral catheter insertion.

View Article and Find Full Text PDF

Objectives: To assess the applicability of the post ureteroscopy lesion scale (PULS) as an objective measure to define the need for double J (DJ) stent placement after ureterorenoscopy (URS).

Methods: Between June and December 2020 a cross-sectional study was conducted at a university hospital. All patients fulfilling the inclusion criteria undergoing URS for renal or ureteric stones were included.

View Article and Find Full Text PDF

Introduction Urolithiasis is a common disorder worldwide with an increasing prevalence and high recurrence rate. This makes preventive measures like dietary modification an essential part of patient care. This study focuses on gauging the perception of dietary habits favoring kidney stone formation.

View Article and Find Full Text PDF

Background In this study, we aimed to translate and validate the 19-item version of the Bristol Female Lower Urinary Tract Symptoms (Bristol FLUTS) Questionnaire in Urdu among women experiencing urinary incontinence at a tertiary care hospital in Karachi, Pakistan. Methodology A cross-sectional validation study was conducted in the urology clinic at Aga Khan University Hospital, Karachi, Pakistan, between April and September 2021. After forward and backward translation of the Bristol FLUTS questionnaire, content validation was done by six experts, followed by the administration of the questionnaire to 10 respondents in the pilot phase of the study.

View Article and Find Full Text PDF

Introduction: Strengthening The Reporting Of Cohort Studies in Surgery (STROCSS) guidelines were developed in 2017 in order to improve the reporting quality of observational studies in surgery and updated in 2019. In order to maintain relevance and continue upholding good reporting quality among observational studies in surgery, we aimed to update STROCSS 2019 guidelines.

Methods: A STROCSS 2021 steering group was formed to come up with proposals to update STROCSS 2019 guidelines.

View Article and Find Full Text PDF

Objective The aim of this study was to assess the impact of intraoperative disruptions on surgeons' workload and performance during percutaneous nephrolithotomy (PCNL). Materials and methods A structured and standardized tool was used to identify disruptions and interferences that occurred during 33 PCNL procedures. The surgical steps during PCNL were divided into four phases: ureteric catheter placement (phase I), puncture and tract dilation (phase II), intra-calyceal navigation and stone fragmentation (phase III), and tube placement (phase IV).

View Article and Find Full Text PDF

Objectives To identify non-invasive predictors of response to tamsulosin 0.4 mg in patients with benign prostatic obstruction (BPO). Methods Males ≥ 50 years of age with lower urinary tract symptoms (LUTS) suggestive of BPO for over three months were included in the study.

View Article and Find Full Text PDF

Technological advances and innovation in endourology have significantly reduced the indications of extracorporeal shockwave lithotripsy in the management of moderate-sized renal stones. In the last decade, we have witnessed a trend towards the use of finer scopes for percutaneous procedures instead of standard percutaneous nephrolithotomy (PCNL) (≥22 Fr). Miniaturized PCNL (mPCNL), i.

View Article and Find Full Text PDF

Objective: To validate the in-house built Styrofoam box bench-top training model for retrograde intrarenal surgery (RIRS).

Materials And Methods: This study was performed in the setting of a half-day RIRS course. During the course, participants performed RIRS on a locally built bench-top model.

View Article and Find Full Text PDF

Objective In this study, we aimed to determine the correlation between the STONE score [(S)ize of the stone, (T)opography or location, degree of (O)bstruction of the urinary system, (N)umber of stones, and (E)valuation of Hounsfield units] and postoperative hemoglobin drop in patients undergoing percutaneous nephrolithotomy (PCNL). Methods This was a prospective observational study and all adult patients aged 18-65 years undergoing unilateral, single-tract PCNL using 26 Ch. Amplatz sheath for renal calculi were included.

View Article and Find Full Text PDF

Background and objective Urolithiasis is a highly prevalent disease worldwide, with Pakistan belonging to the stone belt of Asia. The usage of the double J (DJ) stent is highly effective when it comes to the management of urolithiasis. However, studies investigating the side effects of DJ stent placement on sexual function in individuals are scarce.

View Article and Find Full Text PDF

Background: In a tertiary care hospital that caters to all kinds of patients in the clinical and emergency setting, consultation is an important service provided by the urology team. Profiling the spectrum of urologic disease encountered by trainees will assist in the planning of residency curricula and is bound to improve patient outcome for procedural education.

Methods: All urologic consultation requests received over a period of three months (November 22, 2019, to February 22, 2020) were identified and recorded in a prospectively maintained consult log.

View Article and Find Full Text PDF

Objective: To validate an Urdu translation of premature ejaculation diagnostic tool (PEDT) by analyzing the association of this diagnostic tool with the clinical diagnosis of premature ejaculation (PE) and intravaginal ejaculatory latency time (IELT).

Methods: This cross-sectional study was conducted at the urology section of the Aga Khan University Hospital, Karachi, for six months duration, from July 2018 to December 2018. In our study 108 subjects, aged 20 to 50 years, who were in a stable sexual relationship (heterosexual) for a minimum duration of six months, were asked to fill the Urdu version of PEDT, 61 with PE and 47 without PE.

View Article and Find Full Text PDF

Objective: To evaluate the acute renal colic score (ARC) in predicting the need of emergency intervention (EI) in patients with ureteric colic secondary to a ureteral stone.

Patient And Methods: In an emergency room (ER) of a university hospital, we conducted a prospective cohort study over a period of 6 months. ARC score was calculated using four parameters, i.

View Article and Find Full Text PDF

Objective: To evaluate the impact of nephrostomy tube type on postoperative pain and blood loss following percutaneous nephrolithotomy (PCNL).

Methods: This is a prospective non-randomized study performed at Aga Khan University Hospital from July 2017 to June 2018. In this study we prospectively studied adult patients (16 to 65 years) who underwent unilateral PCNL.

View Article and Find Full Text PDF

Purpose: To study the impact of stone density as assessed by Hounsfield units (HU) on total laser energy (TLE) used and total laser time (TLT) spent in complete fragmentation of upper urinary tract stones. In addition, we also studied the impact of stone composition on the laser energy and time required for fragmentation.

Methods: Thirty consecutive patients fulfilling inclusion and exclusion criteria were included in the study.

View Article and Find Full Text PDF

: To assess surgical strategies and the impact of a multidisciplinary approach on patients undergoing inferior vena caval thrombectomy for renal cell carcinoma and to evaluate perioperative morbidity and mortality associated with these procedures. : A retrospective audit for all adults who underwent nephrectomy and inferior vena caval thrombectomy from January 2008 till November 2018 at a University hospital. Patients with incomplete records were excluded from the study.

View Article and Find Full Text PDF

Decision-making in the management of organ-confined prostate cancer is complex as it is based on multi-factorial considerations. It is complicated by a multitude of issues, which are related to the patient, treatment, disease, availability of equipment(s), expertise, and physicians. Combination of all these factors play a major role in the decision-making process and provide for an interactive decision-making preferably in the multi-disciplinary team (MDT) meeting.

View Article and Find Full Text PDF