Project description:Trans-peritoneal laparoscopic ureterolithotomy is a well-established minimally invasive procedure for management of large impacted ureteric stones since the last 3 decades. We present a case of a 51-year old gentleman, who presented with bilateral large upper ureteric calculi with obstructive uropathy and azotemia, managed successfully with bilateral synchronous 3-port trans-peritoneal laparoscopic ureterolithotomy, and to our knowledge is the first such case to be reported in literature.Supplementary informationThe online version contains supplementary material available at 10.1007/s42399-022-01190-5.
Project description:BackgroundThe ideal treatment for upper ureteric calculi is still debatable, particularly for patients with large, impacted ureteric calculi. Retroperitoneal laparoscopic ureterolithotomy (RLU) may be a worthwhile alternative to open surgery. In this study, we retrospectively evaluated our clinical experience associated with RLU performed for impacted upper ureteric calculi (>1.5 cm) help urologists in clinical practice and provide a reference for clinical work.MethodsA total of 64 cases (38 males; 26 females) with impacted upper ureteric calculi between April 2018 and January 2020 were analyzed retrospectively. The basic information of the included research subjects are as follows: The mean age was 50.8±25.4 years. The largest stone diameter was 1.8±0.3 cm. The mean stone retention time was 42±11 days. The mean degree of hydronephrosis was 2.8±1.2 cm.ResultsThe mean operative time was 85.4±18.3 minutes. The mean hospital duration was 7.5±1.8 days. The stone-free rate was 98.4%. Two patients required additional intervention. Post-operative fever developed in 3 patients. The decrease in hemoglobin levels was 7.8±3.6 g/L. The increase in procalcitonin (PCT) level was 3.7±1.8 ng/mL. No major complications, for example, sepsis, bleeding, bowel injury, or cardiopulmonary morbidities, were reported.ConclusionsRLU should be regarded as an excellent first line treatment modality for impacted upper ureteric calculi (>1.5 cm) owing to the high success rate, low complication rate, and the short length of operative time and hospital duration.
Project description:BackgroundThe aim of this study was to evaluate the role of flexible cystoscopy in preventing malpositioning of the ureteral stent after laparoscopic ureterolithotomy in male patients.MethodsFrom April 2009 to June 2015, 97 male patients with stones >1.8 cm in the upper ureter underwent intracorporeal double-J stenting of the ureter after laparoscopic ureterolithotomy performed by four different surgeons. In the last 50 patients who underwent laparoscopic ureterolithotomy flexible cystoscopy was performed through the urethral route to confirm the position of the double-J stent, while in the first 47 correct positioning of the stent was confirmed through postoperative KUB. The demographic data and perioperative outcomes were reviewed retrospectively. Penalized logistic regression analysis was used to evaluate the effects of flexible cystoscopy.ResultsUpward malpositioning of the ureteral stent was found in 9 of the 47 (19.1%) patients who underwent surgery without flexible cystoscopy. Among the 50 most recent patients who underwent surgery with flexible cystoscopy through the urethral route, upward malpositioning was observed in 10 (20%) patients. The factors preventing upward malpositioning of the double-J catheter in multivariate analysis were surgeon (p = 0.039) and use of flexible cystoscopy (p = 0.008).ConclusionFlexible cystoscopy is a simple, safe, quick, and effective method to identify and correct malpositioning of double-J stents, especially in male patients.Trial registrationThis study was registered with ClinicalTrials.gov Registry on May 11, 2017 (retrospective registration) with a trial registration number of NCT03150446 .
Project description:OBJECTIVES: To summarize our experience of retroperitoneal laparoscopic ureterolithotomy for ureteral calculi and evaluate the safety and efficiency of this procedure. METHODS: We conducted a retrospective analysis of 197 patients with proximal ureteral calculi who accepted retroperitoneal laparoscopic ureterolithotomy from June 2005 to June 2014. RESULTS: All procedures were performed successfully and the mean operating time and estimated blood loss were 87 min and 64 mL. The clearance rate was 98.5% and the rates of urine leak and ureteral stricture were 2.5% and 1.0%. CONCLUSIONS: Retroperitoneal laparoscopic ureterolithotomy is a safe and effective procedure for patients with complex stones or anatomic abnormalities, and, with experience of high volume series, it is also a reasonable choice as the primary treatment for such selected patients.
Project description:ObjectiveTo compare the risk of postoperative ureteral stricture formation following retroperitoneal laparoscopic ureterolithotomy (RPLU) and ureteroscopy with holmium: YAG laser lithotripsy (URSL) in patients with proximal ureteral stones.Materials and methodsWe retrospectively reviewed the medical records of patients who underwent RPLU or URSL for proximal ureteral stones between April 2011 and May 2015. Patients were allocated into URSL group or RPLU group and the outcomes were compared.ResultsA total of 201 patients who underwent 209 procedures including 159 URSL and 50 RPLU with a median follow-up of 30 months were included. No significant difference was observed among the two groups in most baseline parameters, while the stone size was significantly larger in the RPLU group (11.37 ± 2.97 vs 14.04 ± 4.38 mm, p = 0.000). Patients in RPLU group had markedly longer operative time (p = 0.000) and longer postoperative hospital stay (p = 0.000). The initial and one-month stone-free rates were significantly higher in the RPLU group (78.6% vs 100%, p = 0.000 and 82.4% vs 100%, p = 0.001, respectively). Patients in the RPLU had a higher complication rate (18.0% vs 9.4%, p = 0.098) and lower ureteral stricture rate (2.5% vs 2.0%, p = 1.000), while the difference was not significant. Further logistic regression model identified RPLU and female sex as independent risk factors for postoperative complication (Odds Ratio[OR] = 3.57, p = 0.035 and OR = 3.57, p = 0.025, respectively); however, URSL was not an independent risk factor for the formation of postoperative ureteral stricture after adjusting confounding variables (OR = 0.90, p = 0.935).ConclusionRPLU and URSL have similar postoperative ureteral stricture formation risks. RPLU can provide significantly higher stone clearance rate, but relates with more postoperative complications.
Project description:Glaucoma drainage tubes have become increasingly popular in the surgical management of uncontrolled glaucoma. Flow restriction is essential to prevent early postoperative hypotony with non-flow restrictive glaucoma drainage devices. Herein, we describe a new way of using a 3-0 Supramid suture as an intraluminal stent. This technique confers no risk of stent exposure, can be removed ab interno without disturbing the conjunctiva, and aids insertion of the tube into the anterior chamber through a scleral tunnel.
Project description:According to data from stent-enhanced three-dimensional optical coherence tomography, incomplete stent apposition after side branch dilation in coronary bifurcation stenting can be reduced by the free carina type (no links bridged from a carina) and by distal cell rewiring. This is the first report to describe a bent stent technique that was devised to achieve the free carina type (no links bridged from a carina), as a favorable jailing configuration.
Project description:BackgroundOptimal deployment of coronary stents in a bifurcation lesion remains a matter of debate.AimsWe sought to capture the daily practice of bifurcation stenting by means of a worldwide registry and to investigate how post-implantation deployment techniques influence clinical outcomes.MethodsData from the e-ULTIMASTER registry were used to perform an analysis of 4,395 patients undergoing percutaneous coronary intervention for bifurcation lesions. Inverse probability of treatment weights (IPTW) propensity score methodology was used to adjust for any baseline differences. The primary outcome of interest was target lesion failure (TLF) at one year (follow-up rate 96.2%).ResultsThe global one-year TLF rate was low (5.1%). The proximal optimisation technique (POT) was used in 33.9% of cases and was associated with a reduction in the adjusted TLF rate (4.0% [95% confidence interval: 3.0-5.1%] vs 6.0% [5.1-6.9%], p<0.01) due to a reduction of all components of this composite endpoint, except for cardiac death. Stent thrombosis was also positively impacted (0.4% [0.04-0.7%] vs 1.3% [0.8-1.7%], p<0.01). POT benefit was uniform across subgroups. Conversely, the use of the kissing balloon technique (36.5%) did not influence the adjusted TLF rate.ConclusionsDespite a low one-year failure rate in this large bifurcation stenting cohort, POT was associated with a further reduction in the event rate and a uniform benefit across subgroups, suggesting systematic use of this deployment technique regardless of the bifurcation anatomy and stenting technique.