Feasibility and safety of cryoablation on the porcine ureter using a new balloon cryoprobe.

Feasibility and safety of cryoablation on the porcine ureter using a new balloon cryoprobe. Cryobiology. 2020 Jul 21;: Authors: Wang C, Yang X, Fan Q, Yuan J, Li Y, Wang Y Abstract Cryoablation, as a well-characterized technology, has multifarious clinical applications. But few are reported on ureteral endometriosis. Thus, we examined the feasibility and safety of cryotherapy with a novel balloon cryoprobe on ureter in a live porcine model. During the freezing and thawing cycle, temperature was recorded in different parts of the ureter in real-time. Two-minute cryoablation could induce necrosis within range in 1 cm diameter on serosa layer. The temperature respectively dropped to -136.5 °C, -96.1 °C and -17.5 °C at the cryotherapy center, 1 cm and 1.5 cm from center on serosal side. The ureters were harvested immediately, 2 weeks or 3 months after cryotherapy. No perforation, stricture, adhesions, or hydronephrosis was observed. Histopathologic representations of ureters after cryoablation indicated that full thickness necroses of ureters were seen in all samples. The results demonstrated ureteral cryoablation using a novel balloon probe was feasible, safe, and effective. These findings provided us reference before cryoablation could be applied in clinical practice in treating ureteral endometriosis. PMID: 32707123 [PubMed - as supplied by publisher]
Source: Cryobiology - Category: Biology Authors: Tags: Cryobiology Source Type: research

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ConclusionThis video shows how deep urinary endometriosis can be performed laparoscopically. Mastering suturing is essential to avoid complications.
Source: Journal of Minimally Invasive Gynecology - Category: OBGYN Source Type: research
To present a successful remission of hydronephrosis, with laparoscopic surgery of complete excision for DIE lesion, and end-to-end anastomosis of left ureter.
Source: The Journal of Minimally Invasive Gynecology - Category: OBGYN Authors: Tags: Virtual Poster Session 3: Endometriosis (10:20 AM – 10:30 AM) 10:20 AM: STATION B Source Type: research
Conclusions: Laparoscopic ureteroneocystostomy with or without bladder flap (Boari) provides good functional outcomes with excellent success rates and minimal morbidity comparable to open surgery in patients with ureteric stricture.
Source: Urology Annals - Category: Urology & Nephrology Authors: Source Type: research
ConclusionsOur study confirms a relatively high incidence of ureteral involvement in patients with DIE. TVS appears to be a reliable tool for the diagnosis of ureteral involvement and, additionally, it allows the detection of both the level and degree of obstruction. Our findings confirm that TVS examination is an accurate non‐invasive diagnostic tool for the detection of ureteral involvement by endometriosis. Copyright © 2017 ISUOG. Published by John Wiley &Sons Ltd.
Source: Ultrasound in Obstetrics and Gynecology - Category: Radiology Authors: Tags: Original Paper Source Type: research
Abstract IntroductionTo evaluate the accuracy of transvaginal sonography for preoperative detection of bladder endometriosis and surgical outcomes regarding fertility and pain symptoms of women with urinary tract endometriosis. Material and methodsRetrospective cohort study of consecutive patients with urinary tract endometriosis undergoing laparoscopic partial cystectomy and/or ureterolysis/decompression, ureteric resection and end‐to‐end anastomosis or ureteroneocystostomy for ureteral stenosis and hydronephrosis. ResultsOf 207 patients with deep infiltrating endometriosis, 50 exhibited urinary tract endometriosis, c...
Source: Acta Obstetricia et Gynecologica Scandinavica - Category: OBGYN Authors: Tags: Original Research Article Source Type: research
ConclusionsThe nonspecific symptoms of ureteral endometriosis can result in incorrect diagnosis, with renal damage as a result of prolonged hydronephrosis. A high index of suspicion and use of imaging modalities enable earlier diagnosis and preservation of renal function.
Source: Journal of Medical Case Reports - Category: General Medicine Source Type: research
Abstract IntroductionTo evaluate the accuracy of transvaginal sonography for preoperative detection of bladder endometriosis and surgical outcomes regarding fertility and pain symptoms of women with urinary tract endometriosis. Material and MethodsRetrospective cohort study of consecutive patients with urinary tract endometriosis undergoing laparoscopic partial cystectomy and/or ureterolysis/decompression, ureteric resection and end‐to‐end anastomosis or ureteroneocystostomy for ureteral stenosis and hydronephrosis. ResultsOut of 207 patients with deep infiltrating endometriosis, 50 exhibited urinary tract endometriosi...
Source: Acta Obstetricia et Gynecologica Scandinavica - Category: OBGYN Authors: Tags: Original Research Article Source Type: research
We appreciate this study which results according to the literature. It is clear that ureteral or bladder endometriosis could lead to a silent loss of renal function. ” A relatively limited number of patients who are currently not considered to be at true risk of urinary involvement have possible late diagnosis of renal failure.”1 Early diagnosis of hydronephrosis is critical to preserve renal function in these young patients. “As such we believe that patie nts with suspected or proven pelvic endometriosis should systematically undergo a sonographic kidney evaluation during routine gynecological sonographi...
Source: Urology - Category: Urology & Nephrology Authors: Tags: Letters to the Editor Source Type: research
We appreciate this study which results according to the literature. It is clear that ureteral or bladder endometriosis could lead to a silent loss of renal function. ” A relatively limited number of patients who are currently not considered to be at true risk of urinary involvement have possible late diagnosis of renal failure.”1 Early diagnosis of hydronephrosis is critical to preserve renal function in these young patients. “As such we believe that patie nts with suspected or proven pelvic endometriosis should systematically undergo a sonographic kidney evaluation during routine gynecological sonographi...
Source: Urology - Category: Urology & Nephrology Authors: Tags: Letter to the Editor Source Type: research
We appreciate this study which results according to the literature. It is clear that ureteral or bladder endometriosis could lead to a silent loss of renal function. ” A relatively limited number of patients who are currently not considered to be at true risk of urinary involvement have possible late diagnosis of renal failure.”1 Early diagnosis of hydronephrosis is critical to preserve renal function in these young patients. “As such we believe that patie nts with suspected or proven pelvic endometriosis should systematically undergo a sonographic kidney evaluation during routine gynecological sonographi...
Source: Urology - Category: Urology & Nephrology Authors: Tags: Letter to the Editor Source Type: research
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