Which Position for Novice Surgeons? Effect of Supine and Prone Positions on Percutaneous Nephrolithotomy Learning Curve.

: Percutaneous nephrolithotomy (PCNL) is a current treatment method with high success rates and low complication rates in treating large kidney stones. It can be conducted in different positions, especially supine and prone positions. PCNL in the supine position is becoming increasingly common due to its advantages, such as simultaneous retrograde intervention and better anesthesia management.

Healthcare costs and effects of post-COVID-19 condition in Canada.

Background: As evidence of the long-term health impacts of coronavirus disease 2019 (COVID-19) continues to grow across Canada, a key concern is the costs and health impacts of post-COVID-19 condition (PCC), especially while the healthcare system remains under substantial strain. The objective of this study is to estimate healthcare costs and quality-adjusted life year (QALY) decrements per PCC case and per acute COVID-19 case by vaccination status.

Methods: First, we conducted a rapid review of the literature to estimate 1) the probability of developing PCC following COVID-19 infection by vaccination status, 2) the probability of each condition commonly associated with PCC, 3) healthcare costs and QALY decrements associated with each condition and 4) the number of PCC cases currently in Canada.

Efficiency of radiation-free retrograde intrarenal surgery (RIRS) in children and evaluation of factors affecting surgical success.

Objective: To investigate the factors affecting surgical success rates and duration of operation in retrograde intrarenal surgery (RIRS) without fluoroscopy in children. The aim of the study was to demonstrate the efficacy of RIRS without fluoroscopy on the treatment of renal stones in children. MATERIALS AND METHODS: All RIRS procedures were performed on pediatric patients at our clinic from August 2013 to January 2017.

Modified Makuuchi incision in the surgical treatment of renal tumors: Initial results.

Objective: To evaluate the modified Makuuchi incision in the surgical treatment of renal tumors.

Material And Methods: A total of 29 patients with renal tumors were operated using the modified Makuuchi incision. Patients' age ranged from 48 to 72 years.

The efficacy of Tadalafil 5mg in the treatment of lower urinary tract symptoms in patients where alpha blocker treatments have failed in terms of lower urinary tract symptoms.

Objectives: To investigate the efficacy of tadalafil 5mg in patients with lower urinary tract symptoms who failed alpha blocker treatment.

Patients And Methods: Twenty-three patients were included. Patient consent was obtained after explaining the efficacy of tadalafil 5mg in lower urinary tract symptoms.

Is retrograde intrarenal surgery replacing percutaneous nephrolithotomy as surgical treatment of stone disease: Our clinical experience.

Objective: Urolithiasis prevalence is 2-20% according to different geographic characteristics in different populations. In this study, we aimed to present the distribution of operation numbers for both percutaneous nephrolithotomy (PCNL) and retrograde intrarenal surgery (RIRS) in terms of age and stone size in order to reveal the changes over the years.

Method: Between January 2010 and March 2016, 1814 patients were operated for the treatment of renal stones.

Factors associated with postoperative pain after retrograde intrarenal surgery for kidney stones.

Objective: We aimed to investigate factors related to early postoperative pain after retrograde intrarenal surgery (RIRS).

Material And Methods: A prospective data analysis of 250 patients who underwent RIRS due to kidney stones was performed. Postoperative pain was evaluated in all patients by using visual analogue scale (VAS).

Predictive factors of bleeding among pediatric patients undergoing percutaneous nephrolithotomy.

The purpose of this study is to determine the perioperative risk factors for increased blood loss in children undergoing percutaneous nephrolithotomy (PCNL).We retrospectively reviewed the data on pediatric patients who had undergone PCNL for stone disease in our department. Blood loss estimation was quantified by measuring the changes in hematocrit plus the volume of red blood cells transfused.

Surgical management of urinary stones with abnormal kidney anatomy.

In spite of the fact that urologic surgical techniques used by urologists are becoming more and more minimally invasive and easier because of developing technologies, surgical approaches for the urinary stones in kidneys with abnormal anatomy are still confusing. The objective of this article is to determine the treatment options in these kidneys. For this purpose, between 2005 and 2015, we retrospectively evaluated patients operated for urolithiasis with various congenital renal anomalies in five referral urology clinics in our country.

Do the urolithiasis scoring systems predict the success of percutaneous nephrolithotomy in cases with anatomical abnormalities?

The objective of this study is to assess the utility of the Guy, S.T.O.

Are patients with lichen planus really prone to urolithiasis? Lichen planus and urolithiasis.

Purpose: to investigate whether patients with lichen planus (LP) are really prone to urolithiasis or not.

Patients And Methods: We performed a prospective analysis of 40 patients diagnosed with lichen planus (LP) (group I), and 40 volunteers did not have LP before (group II). Participants were all checked for urolithiasis by radiological investigations.

Which factors affect the hospital re-admission and re-hospitalization after flexible ureterorenoscopy for kidney stone?

Purpose: To investigate patient- and procedure-related factors associated with hospital re-admission (HR) and re-hospitalization following flexible ureteroscopy (f-URS).

Patients And Methods: The records of patients who underwent f-URS for renal stones in two reference centers between 2011 and 2015 were examined retrospectively. Patients who were re-admitted to the hospital or re-hospitalized for any reason within 30 days after hospital discharge related to the f-URS procedure were evaluated.

Factors affecting hospital readmission and rehospitalization following percutaneous nephrolithotomy.

Purpose: To identify patient- and procedure-related factors that increase the risk of hospital readmission and emergency room (ER) visits after percutaneous nephrolithotomy (PNL).

Materials And Methods: We retrospectively reviewed the records of patients with kidney stones treated via PNL in two tertiary referral hospitals between 2008 and 2014. Patient demographics including age, body mass indices, ASA score, stone size, presence of anatomic abnormality and comorbidity, operative and postoperative measures, and ER visit and rehospitalization rates were reviewed.

Effect of percutaneous nephrolithotomy on renal functions in children: assessment by quantitative SPECT of (99m)Tc-DMSA uptake by the kidneys.

Objective: To determine the impact of percutaneous nephrolithotomy (PNL) on global and regional renal function in children.

Methods: In total, 40 children (41 renal units) undergoing PNL were included in this prospective study. All patients were evaluated using quantitative single-photon emission computed tomography (QSPECT) with technetium-99 m-dimercaptosuccinic acid ((99m)Tc-DMSA) examinations before and 3 months after surgery.

Is routine ureteral stenting really necessary after retrograde intrarenal surgery?

Objectives: To investigate the situations in which ureteral double-J stent should be used after retrograde intrarenal surgery (RIRS).

Patients And Methods: Patients with no ureteral double-J stent after RIRS constituted Group 1, and those with double- J stent after RIRS constituted Group 2. Patients' age and gender, renal stone characteristics (location and dimension), stone-free status, VAS score 8 hours after surgery, post-procedural renal colic attacks, length of hospitalization, requirement for re-hospitalization, time to rehospitalization and secondary procedure requirements were analyzed.

Evaluation of the pathologic results of prostate biopsies in terms of age, Gleason score and PSA level: our experience and review of the literature.

Objective: To evaluate the pathologic and clinic results of our large series of transrectal prostate biopsies in relation to Gleason score, age and PSA level.

Materials And Methods: We reviewed the pathologic results of transrectal prostate biopsies performed because of high PSA levels and abnormal digital rectal examination findings between January 2008 and February 2012.

Results: The pathologic result of 835 prostate biopsies was benign in 82.

Factors affecting outcomes of percutaneous nephrolithotomy in horseshoe kidneys.

Objective: To analyze the patient- and procedure-related factors affecting the outcomes of percutaneous nephrolithotomy (PNL) in horseshoe kidneys (HSKs).

Methods: A retrospective analysis was done of patients with stones in HSKs treated with PNL in 3 referral centers between 1998 and 2013. Demographics, along with perioperative characteristics, were evaluated in detail as to whether or not they had an effect on the success and complication rates.

Flexible ureterorenoscopy for the treatment of kidney stone within pelvic ectopic kidney.

Objective: To present the outcomes of flexible ureterorenoscopy (F-URS) and laser lithotripsy for the treatment of calculi within pelvic ectopic kidney (PEK).

Patients And Methods: We retrospectively reviewed the medical records of 26 patients with calculi in PEK treated with F-URS in 5 referral hospitals between 2010 and 2013. Patient demographics and stone characteristics (age, sex, body mass index, stone size, location, history of shock wave lithotripsy or kidney surgery), and perioperative measures (duration of operation, fluoroscopic imaging, and hospitalization and success and complication rates) were reviewed.

Comparative analysis of pedicular vascular control techniques during laparoscopic nephrectomy: en bloc stapling or separate ligation?

Objective: To compare the safety and efficacy of en bloc stapling and separate ligation techniques for renal vascular control during laparoscopic nephrectomy.

Patients And Methods: Clinical data were collected from 60 patients who underwent laparoscopic nephrectomies using en bloc stapling (n = 27, group 1) or the separate ligation method (n = 33, group 2). Comparative analysis was carried out between the two groups, examining operative times, blood loss, intra- and postoperative complications and hospital stay.

Postoperative infection rates in patients with a negative baseline urine culture undergoing ureteroscopic stone removal: a matched case-control analysis on antibiotic prophylaxis from the CROES URS global study.

Purpose: To examine the effects of antibiotic prophylaxis on postoperative infection rate in patients with negative urine cultures undergoing ureteroscopy (URS).

Patients And Methods: Using the Clinical Research Office of the Endourological Society (CROES) URS Global Study database, patients with a negative baseline urine culture undergoing URS for ureteral stones (n=1141) or kidney stones (n=184) not receiving antibiotic prophylaxis were matched with those who were predefined by risk factors, including gender, American Society of Anesthesiologists (ASA) score, and ureteral stent placement. Patient characteristics, operative data, and postoperative outcomes, including the development of urinary tract infection (UTI) and fever, in the two groups were compared.

Cytological Diagnosis of Small Cell Carcinoma of Urinary Bladder in a Patient with CLL.

Small cell carcinoma of the urinary bladder (SCCUB) is an extremely rare bladder malignancy characterized by an aggressive clinical behavior. So, it is important to diagnose this high grade disease by urinary cytology. We report a case of SCCUB in an old man with chronic lymphocytic leukemia (CLL) in remission, while bladder tumor was diagnosed by cytology.

Categorizing intraoperative complications of retrograde intrarenal surgery.

Purpose: To review our intraoperative complications of retrograde intrarenal surgery (RIRS) for kidney calculi and stratify these complications according to the modified Satava classification system (SCS).

Patients And Methods: 230 patients (119 males, 111 females) who underwent RIRS because of kidney calculi were analyzed. We documented and stratified the intraoperative complications according to the modified SCS.

A Giant Ureteral Stone without Underlying Anatomic or Metabolic Abnormalities: A Case Report.

A 28-year old man presented with left flank pain and dysuria. Plain abdominal film and computed tomography showed a left giant ureteral stone measuring 11.5 cm causing ureteral obstruction and other stones 2.

Retrograde intrarenal surgery in patients with isolated anomaly of kidney rotation.

The purpose of the study was to investigate feasibility of retrograde intrarenal surgery (RIRS) in patients with isolated anomaly of kidney rotation with kidney stones. We retrospectively reviewed the medical records of patients who underwent RIRS due to kidney stones in three referral hospitals. Twenty-four patients who had kidney rotation were included in this study.