Publications by authors named "Siavash Falahatkar"
Article Synopsis
- The study investigates the necessity of double-J (DJ) stent insertion after tubeless percutaneous nephrolithotomy (PCNL) for staghorn stones, comparing outcomes between two patient groups: one with DJ stents and the other with ureteral catheters.
- Results showed that while the operative time was longer for patients with DJ stents, they had shorter hospital stays and a higher stone-free rate; however, those without stents returned to normal life faster.
- The authors recommend using DJ stents due to the higher residual stone rate in those without stents, which can lead to more complications and longer recovery times.
Objective: This study aimed to explore the global, prevalence, and risk factors of fever after percutaneous nephrolithotomy (PCNL) by conducting a systematic review and meta-analysis.
Methods: The high-sensitivity searching was conducted without time limitation until December 30, 2020 in Web of Sciences, Scopus, and PubMed based on inclusion and exclusion criteria.
Results: The prevalence rates of fever and sepsis among patient undergoing PCNL were estimated 9.
Although hematuria is not life-threatening, some could be the result of a more severe condition. Our objectives are to report on the prevalence and risk factors of asymptomatic microscopic hematuria (AMH) in the prospective epidemiological research studies of the Iranian adults (PERSIAN) Guilan cohort study (PGCS) population. This cross-sectional study was conducted from 2014 to 2017 and consisted of 10,520 individuals aged 35-70.
View Article and Find Full Text PDFBackground: Hematuria is one of the most common symptoms in nephrology and urology. Due to the lack of extensive meta-analysis studies on the epidemiology of hematuria in Iran, this study was conducted to determine the epidemiological status of hematuria in Iran.
Methods: In Sep 2020, researchers studied six international databases such as PubMed, ISI/WOS, ProQuest, Embase, Scopus, and Google Scholar for English papers and Iranian databases (SID and MagIran) for Persian papers.
Purpose: Fluoroscopy-guided percutaneous nephrolithotomy (PCNL) is procedure of choice for treatment of large urinary tract calculi. This study aimed to investigate the affecting factors on fluoroscopy screening time (FST) and radiation dose (RD) of patients undergoing complete supine percutaneous nephrolithotomy (csPCNL).
Methods: Analytic cross-sectional study was performed on 355 patients who underwent csPCNL.
Purpose: Detecting prostate cancer, developing therapeutic plans after negative biopsies, and prognosis-based patient counseling can be challenging for many urologists dealing with prostate cancer-specific antigens. New Biomarkers advances made improvement for prediction of responses to therapeutic option and can tell us about survival and recurrence. In this review, we have assessed current and upcoming biomarkers that are opening a new era in diagnosing the disease.
View Article and Find Full Text PDFPurpose: To compare the effects of tadalafil, tamsulosin, and placebo as a medical expulsive therapy (MET) for distal ureteral calculi.
Materials And Methods: This prospective randomized double-blind clinical trial was conducted on 132 renal colic patients with distal ureteric stones (≤10mm) over a period of 12 months. Patients were randomly divided into three groups.
Background: Many medical therapies have been tested to deal with urinary stent-related symptoms (USRS). Several preventive and pharmaceutical methods have been already used for better compatibility of stents. However, the existing evidence for pharmacological treatment is still controversial.
View Article and Find Full Text PDFArticle Synopsis
- The study aimed to assess the effectiveness of complete supine percutaneous nephrolithotomy (csPCNL) for treating staghorn and large non-staghorn kidney stones.
- A total of 201 patients with eligible cases were divided into three groups based on stone type, and various outcomes related to surgery were analyzed.
- Results showed no major differences in most outcomes across the groups, although the stone-free rate was notably lower for staghorn stones, suggesting csPCNL is a viable option for managing both staghorn and large non-staghorn stones.
sequence type (ST) 131 is considered a high-risk pandemic clone and frequently extended-spectrum β-lactamase (ESBL)-producing clone that is strongly associated with the global dissemination of CTX-M-15 type. The emergence of ST131 has become a public health threat because this clonal group typically exhibits multiple virulence factors and antimicrobial resistance. Therefore, this study aimed to analyze the literature published on the estimation of the prevalence of clone ST131 among strains isolated from patients with urinary tract infections in western Asia.
View Article and Find Full Text PDFPaclitaxel (PTX) has transpired as a significant agent in the treatment of breast cancer. Meanwhile, polylactic glycolic acid (PLGA) nanoparticles (NPs) are able to increase the anticancer effect of the PTX in the blood. Nano-precipitation was used to prepare the PLGA-PTX-VitD3 co-delivery NPs.
View Article and Find Full Text PDFObjective: To determine whether spinal anesthesia combined with obturator nerve blockade (SOB) is effective in preventing obturator nerve stimulation, jerking and bladder perforation during transurethral resection of bladder tumor (TURBT).
Material And Methods: In this clinical trial, 30 patients were randomly divided into two groups: spinal anesthesia (SA) and SOB. In SA group, 2.
Objective: This study compared the stone opacity effect in patients who had radiopaque and radiolucent stones in percutaneous nephrolithotomy (PCNL) results.
Material And Methods: The medical records of 171 complete supine PCNL procedures were gathered. Patients were categorized into two groups: those with radiopaque (n=141) and those with radiolucent (n=30) stones.
Purpose: To compare outcomes and complications of percutaneous nephrolithotomy (PCNL) in the complete supine versus semi supine position in order to select the best position.
Materials And Methods: In this clinical trial, between July 2011 and May 2014, a total of 44 patients who presented for PCNL were prospectively enrolled and randomly divided into 2 groups [complete supine (n=22), andsemi supine (n = 22)]. The results in both positions were compared regarding the complexity and outcomes.
Purpose: To compare results of studies on supine and prone percutaneous nephrolithotomy (PCNL) techniques to find the best position for treating kidney stones.
Materials And Methods: A systematic literature review was done in April 2016 using PubMed, Scopus, and Web of Science databases to identify the relevant studies. Article selection was based on the preferred reporting elements of systematic reviews and meta-analysis criteria.
Introduction And Hypothesis: To compare complications and outcomes of complete supine percutaneous nephrolithotomy (csPCNL) with ultrasound guided and fluoroscopically guided procedure.
Materials And Methods: In this randomized clinical trial study from January 2009 to September 2010, 26 of 51 patients with renal stones underwent csPCNL with ultrasonographic guidance in all steps of the procedure (group A), and the other 25 patients underwent standard fluoroscopically guided csPCNL (group B). All of the patients underwent PCNL in the complete supine position.
Purpose: To compare the procedural time and complication rate of coaxial technique with those of noncoaxial technique in transperineal prostate biopsy.
Materials And Methods: Transperineal prostate biopsy with coaxial (first group, n = 120) and noncoaxial (second group, n = 120) methods was performed randomly in 240 patients. The procedural time was recorded.
Introduction: An increase in percutaneous nephrolithotomy (PCNL) has been accompanied by an increase in complications. We identified the parameters affecting the severity of complications using the modified Clavien classification (MCC).
Methods: From 2008 to 2013, 330 patients underwent complete supine PCNL using subcostal access, one-shot dilation, rigid nephroscopy, and pneumatic lithotripsy.
Background: Spinal anesthesia (SA) is the most common regional anesthesia (RA) conducted for many surgical procedures.
Objectives: The current study aimed to predict the difficulty score of SA, by which to reduce the complications and ultimately improve the anesthesia quality.
Materials And Methods: Transurethral Lithotripsy (TUL) surgery candidates were enrolled in this observational study from 2010 to 2011.
Objective: To evaluate the effect of botulinum neurotoxin type-A (BoNT-A) on chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) refractory to medical therapy.
Materials And Methods: Between November 2011 and January 2013, 60 men aged ≥18 years with CP/CPPS, and with National Institutes of Health Chronic Prostatitis Symptom Index (NIH-CPSI) scores ≥10 and pain subscale scores ≥8, who were refractory to 4-6 weeks' medical therapy, underwent transurethral intraprostatic injection of BoNT-A or normal saline in a prospective pilot double-blind randomized study. The patients' NIH-CPSI total and subscale scores, American Urological Association (AUA)-symptom score (SS), visual analogue scale (VAS) and quality of life (QoL) scores and frequencies of diurnal and nocturnal urination were evaluated and compared at baseline and at 1, 3 and 6 months after injection and also were compared between the two groups.
To evaluate the correlation between preoperative urine culture and stone culture findings during PCNL and choosing the appropriate antimicrobial treatment of patients with urinary tract infection or SIRS after PCNL. From April 2007 to March 2008, 51 patients aged 24-66 years underwent PCNL under general anesthesia. Statistical analysis was performed using SPSS software (v.
View Article and Find Full Text PDFObjective: To compare the outcomes of bipolar transurethral vaporization of the prostate (TUVP) with bipolar transurethral resection of the prostate (TURP).
Materials And Methods: In a prospective randomized trial, 88 patients with moderate to severe lower urinary tract symptoms secondary to benign prostatic hyperplasia (BPH) underwent bipolar TUVP (N = 39) or bipolar TURP (N = 49) from October 2010 to November 2011. The inclusion criteria were age > 50 years, prostate volume of 30-80 mL, serum PSA < 4 ng/mL, IPSS ≥ 20, Qmax ≤ 10 mL/s and failed medical therapy.
Purpose: To determine the frequency of human leukocyte antigen (HLA)-B5 in patients with bladder cancer compared with normal population.
Materials And Methods: In this cross sectional study, from November 2009 until November 2010, 35 patients with pathologic diagnosis of bladder cancer who referred to urology clinic of Razi Hospital were studied. Also, 130 healthy transplant donation volunteers who referred for HLA-typing to Guilan Blood Transfusion Organization, were selected.