Electrohydraulic Lithotripsy of Bladder Stones A Hong Kong Experience

Yip, Yu Lap; Tin, He

doi:10.1111/j.1464-410x.1988.tb04295.x

Cited by 11 publications

(5 citation statements)

References 3 publications

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“…EHL appears to be safe with no major complications reported in humans and animals. Minor complications also are uncommon and include minimal mucosal lesions (eg, petechiae and erosions) that do not appear to be clinically relevant 8,10,15–19 …”

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confidence: 99%

“…Minor complications also are uncommon and include minimal mucosal lesions (eg, petechiae and erosions) that do not appear to be clinically relevant. 8,10,[15][16][17][18][19] To our knowledge, evaluation of the efficacy of EHL has not been examined in dogs with spontaneously occurring bladder calculi. The purpose of this study was to evaluate the efficacy and safety of EHL in the fragmentation of bladder and urethral calculi in dogs.…”

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confidence: 99%

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Use of Electrohydraulic Lithotripsy in 28 Dogs with Bladder and Urethral Calculi

Defarges

Dunn

2008

Veterinary Internal Medicne

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Background: Electrohydraulic lithotripsy (EHL) has been used as an alternative to cystotomy in human medicine to remove urinary calculi. This prospective study evaluated the efficacy and safety of EHL to remove urinary calculi in dogs.Hypothesis: EHL is an efficient and safe method of treatment of bladder and urethral calculi in dogs. Methods: Dogs presented between January 1, 2005 and June 1, 2007 with lower urinary tract calculi diagnosed by radiographs or ultrasound examination were included in the study. Physical examination, CBC, biochemistry, urinalysis, and urine culture were performed at presentation. EHL and voiding urohydropulsion were performed under general anesthesia. Patients received IV fluids for 12 hours after which they were rechecked by ultrasound examination and discharged with antibiotics and anti-inflammatory drugs for 5 days. All patients were reevaluated 1, 3, and 6 months after presentation by physical examination, urinalysis, and ultrasonography.Results: Twenty-eight dogs (19 males, 9 females) presented with bladder or urethral calculi or both underwent lithotripsy. Their median weight was 8.3 kg. Calcium oxalate calculi were present in 22 dogs, struvite in 4, and mixed calculi in 2. Fragmentation was done in the bladder (23 dogs) and in the urethra (12 dogs). Calculus-free rate was higher for urethral than for bladder calculi in males and higher for bladder calculi in females than in males. No major complications were reported. Twelve dogs relapsed within 6 months.Conclusions: Results of this study support the use of EHL as a minimally invasive treatment for bladder calculi in females and for urethral calculi in male dogs.

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Use of Electrohydraulic Lithotripsy in 28 Dogs with Bladder and Urethral Calculi

Defarges

Dunn

2008

Veterinary Internal Medicne

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“…Both require anaesthesia and hospitalisation and are associated with some morbidity. Larger stones require the help of the ultrasound or electrohydraulic lithotriptor (Cetin et al, 1988 ;Yip and Tin, 1988;Zhaowu et al, 1988). While using these ancillary aids it is possible, as a result of friction, to erode the mucosa of the bladder or perforate the bladder.…”

Section: Discussionmentioning

confidence: 99%

Extracorporeal Shock Wave Lithotripsy for Bladder Stones

Hotiana

Khan

Talati

1993

British Journal of Urology

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Between December 1989 and July 1991, 29 patients with bladder stones were treated on the MPL 9000 extracorporeal shock wave lithotriptor using ultrasound for localisation. The mean stone dimensions were 22.65 x 15.17 mm (< 400 mm2 in 20 patients); 75% of patients required only 1 ESWL session but the largest stone (2025 mm2) required 3. Whilst larger stones tended to require more shock waves, linear regression analysis showed a poor fit and factors other than size (operator experience and stone hardness) may determine the number of shock waves required. Satisfactory fragmentation was obtained in all patients. All were treated under intravenous analgesia without anaesthesia. Three patients also had outflow obstruction and were treated by transurethral resection of the prostate (TURP) on the day after completing ESWL. ESWL prior to TURP reduces the morbidity and operating time associated with endoscopic therapy of bladder stones. Macroscopic fragments remaining after ESWL can be washed out at TURP.

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“…Nowadays it is an unusual procedure since endoscopically guided lithotrites as well as modern ultrasonic and electrohydraulic lithotriptors have made it obsolete ex cept in cases with very large calculi. Electrohydraulic transurethral lithotripsy requires a urethrocystoscope with a dimension of 21 to 23 F (OD 7.0-7.7 mm) and has to be performed under general or regional anesthesia (11). A complete session lasts about 30 to 60 min and the stone evacuation about 15 min.…”

Section: Discussionmentioning

confidence: 99%

“…Currently used techniques for cystolitholapaxy include sectio alta, transurethral procedures using stone forceps, ultrasonic or electrohydraulic lithotriptors, percuta neous suprapubic puncture with a 30 to 36 F (OD 10.0-12.0 mm) tube, and extracorporeal shock-wave lithotripsy (1,4,(9)(10)(11)(12). The transurethral procedures carry a risk of injury to the bladder wall and /or the urethra.…”

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Lithotripsy of Urinary Bladder Stones with a Mechanical Lithotriptor Inserted through a Narrow Introducer

et al. 1992

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Mechanical lithotripsy of urinary bladder stones was performed with the RotoLith lithotriptor in 8 pigs with implanted human stones or artificial stones after open cystotomy. The effect of the treatment on the urinary bladder was investigated macro-and mi croscopically immediately after the lithotripsy in 4 animals and 4 weeks after the lithotripsy in the other 4 animals. The stones were fragmented into very small pieces which would have been possible to pass with the urine. The histopathologic examination immediate ly after the procedure showed slight mucosal edema, patches of erosions in the mucosa, and minor submucosal bleeding. Microscop ic examination of the bladders removed 4 weeks after lithotripsy showed slight chronic inflammation. The experimental results have encouraged us to plan to use this lithotripsy procedure in selected patients with bladder stones.

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Electrohydraulic Lithotripsy of Bladder Stones A Hong Kong Experience

Cited by 11 publications

References 3 publications

Use of Electrohydraulic Lithotripsy in 28 Dogs with Bladder and Urethral Calculi

Use of Electrohydraulic Lithotripsy in 28 Dogs with Bladder and Urethral Calculi

Extracorporeal Shock Wave Lithotripsy for Bladder Stones

Lithotripsy of Urinary Bladder Stones with a Mechanical Lithotriptor Inserted through a Narrow Introducer

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