1/20. Percutaneous pyelolithotomy. A new extraction technique.Recurrent renal calculous disease is often troublesome to treat because of technical difficulties associated with reoperation. Attempts to dissolve the stones by irrigation with various solutions has not had much success. A new extraction technique has therefore been devised whereby the stones can be removed through a percutaneous nephrostomy umder radiological control. Three cases are described.- - - - - - - - - - ranking = 1keywords = extraction (Clic here for more details about this article) |
2/20. Mini-percutaneous antegrade endopyelotomy.Antegrade endopyelotomy is the endourologic treatment of choice for ureteropelvic junction obstruction with a coexisting renal calculus. We report the use of a mini-percutaneous procedure that allows us to perform an antegrade endopyelotomy and stone extraction through a 20F nephrostomy sheath.- - - - - - - - - - ranking = 0.2keywords = extraction (Clic here for more details about this article) |
3/20. Lateral decubitus position for percutaneous nephrolithotripsy in the morbidly obese or kyphotic patient.BACKGROUND AND PURPOSE: Morbidly obese or debilitated patients do not tolerate the prone position used for percutaneous nephrolithotripsy (PCNL) well and may suffer from severe cardiorespiratory compromise in this position. The purpose of this study is to demonstrate a simple way to overcome this difficulty. patients AND methods: Two morbidly obese patients, ages 48 and 32 years, with Body Mass Indices of 47.5 and 43.2 and a 68-year old patient severely debilitated by multiple cerebral infarctions, ischemic heart disease, and kyphosis suffered from relatively high renal stone burdens. For PCNL, the patients were placed in the lateral decubitus position. To obtain an anteroposterior projection in this position, the C-arm fluoroscopy unit was tilted to one side and the operating table to the other. Tract dilation, stone fragmentation, and fragment extraction were performed with the patient in this position. RESULTS: An attempt to perform PCNL in the prone position in the first patient was aborted because of severe hypoxemia and hypercarbia. In the lateral decubitus position, the procedures were easily performed in all patients without any complications. It was noted that by rotating the C-arm to a perpendicular position, it was possible to perform nephroscopy and use fluoroscopy simultaneously. CONCLUSION: We highly recommend using the lateral position for PCNL in morbidly obese patients and in patients suffering from kyphosis. This position is safe and convenient.- - - - - - - - - - ranking = 0.2keywords = extraction (Clic here for more details about this article) |
4/20. Treatment of extensive renal calculi with extracorporeal surgery and autotransplantation.Two patients with large calculi in solitary kidneys, treated by ex vivo stone extraction and autotransplantation, are presented. The results show this to be a valuable therapeutic modality for difficult renal calculi where an in situ approach would be hazardous.- - - - - - - - - - ranking = 0.2keywords = extraction (Clic here for more details about this article) |
5/20. Laparoscopic management of a retained heavily encrusted ureteral stent.The indwelling ureteral stent is a fundamental part of today's urologic practice. Since its introduction in 1978, many improvements have been made in stent design and composition to minimize patient discomfort. As a consequence, the patient can forget about the stent. A known and well-documented complication of this situation is encrustations of the ureteral stent which causes significant morbidity to the patient, and at times, they are very difficult to manage. Reports in the literature describe techniques that require several procedures and anaesthetic sessions to effect stent extraction. Here, we report the one-sitting laparoscopic management of a heavily encrusted and stuck DJ stent, with minimal morbidity and very short hospital stay. Laparoscopic management of this common urologic problem has not been reported before. A comprehensive discussion is also presented regarding the management of such problems and their prevention.- - - - - - - - - - ranking = 0.2keywords = extraction (Clic here for more details about this article) |
6/20. Percutaneous transperitoneal approach to a pelvic kidney for endourological removal of staghorn calculus.Percutaneous access to a pelvic kidney was obtained by retrograde nephrostomy in combination with continuous observation and displacement of bowel loops via a laparoscope. A staghorn calculus was removed by ultrasonic lithotripsy and mechanical extraction, and the patient was discharged from the hospital 5 days later.- - - - - - - - - - ranking = 0.2keywords = extraction (Clic here for more details about this article) |
7/20. Combination extracorporeal shock wave lithotripsy and percutaneous extraction of calculi in a renal allograft.Renal calculi are a well documented although uncommon complication of kidney transplantation and may be associated with significant morbidity in this immunosuppressed population with a single functioning kidney. We describe a patient who presented with 2 episodes of staphylococcal bacteremia associated with a ureteral structure and struvite calculi involving the calices, renal pelvis and proximal ureter of a cadaveric renal allograft. The patient was treated successfully with a combination of extracorporeal shock wave lithotripsy, percutaneous extraction and balloon dilation of the ureteral stricture. Renal transplant function was not altered postoperatively. In selected cases shock wave lithotripsy can be used as effective adjunctive therapy in a renal allograft harboring stones.- - - - - - - - - - ranking = 1keywords = extraction (Clic here for more details about this article) |
8/20. Treatment of painful caliceal stones.Nonmobile caliceal stones cause pain more often than previously appreciated. The character and intensity of the pain differs from typical renal colic. Twenty-six patients with caliceal stones and pain underwent attempted treatment for pain control via stone removal or disintegration: 15 were treated with percutaneous stone extraction (PSE), 10 with extracorporeal shock-wave lithotripsy (ESWL), and 1 required open surgery after failing PSE. One patient had persistent pain after ESWL and subsequently underwent PSE; 25 of 26 patients had complete relief of pain. morbidity was minimal. patients with painful caliceal stones should be offered ESWL, followed by PSE if pain persists.- - - - - - - - - - ranking = 0.2keywords = extraction (Clic here for more details about this article) |
9/20. Pulmonary complications of percutaneous nephrostomy and kidney stone extraction.Percutaneous nephrostomy and percutaneous removal of kidney stones are widely used procedures that obviate the need for open urologic surgery in many patients. In six patients who had percutaneous renal manipulation, pulmonary complications of varying severity developed, including urinothorax, pneumothorax, hemorrhage, pleural effusion, pneumonia, and atelectasis. patients having percutaneous renal manipulation should be monitored during and after the procedure for pulmonary complications.- - - - - - - - - - ranking = 0.8keywords = extraction (Clic here for more details about this article) |
10/20. Kidney stone removal: percutaneous versus surgical lithotomy.Percutaneous removal of most urinary tract calculi may be performed as a 1-stage effort with techniques and skills developed recently in the specialties of urology and radiology. Ultrasonic fragmentation of most calculi was done to permit their extraction. Percutaneous ultrasonic lithotripsy was performed on 250 consecutive (a single exception) patients bearing stones that required removal. Targeted calculi were removed successfully from 97 per cent of these patients. One patient required surgical lithotomy. The previous 100 patients with stones underwent surgical lithotomy with 96 per cent success. Complications of percutaneous ultrasonic lithotripsy appeared equitable with those of surgical lithotomy. Of the patients who underwent percutaneous ultrasonic lithotripsy 6 (6 per cent) required extended hospital days or additional procedures for management of complications. None of these patients required a surgical incision. anesthesia times were similar for both groups--average 159 plus or minus 4 (standard error) minutes for percutaneous ultrasonic lithotripsy and 193 plus or minus 8 minutes for surgical lithotomy. Hospital recovery days averaged 5.5 plus or minus 0.3 for percutaneous ultrasonic lithotripsy and 8.4 plus or minus 0.5 for surgical lithotomy (p less than 0.01). Associated costs averaged $7,203 plus or minus 55 for lithotripsy and $8,849 plus or minus 660 for lithotomy (p less than 0.01). The number of narcotic administrations per patient (days 1 to 5 postoperatively) averaged 9.88 plus or minus 0.70 for lithotripsy and 16.82 plus or minus 0.78 for lithotomy (p less than 0.01). The average patient who underwent percutaneous ultrasonic lithotripsy felt capable of full activity 2.0 plus or minus 0.2 weeks following stone removal, whereas no patient who underwent previous surgical lithotomy recalls a recovery period of less than 3 weeks (p less than 0.01). We believe that most upper urinary tract calculi may be removed cost-effectively with a percutaneous approach. Compared to surgical lithotomy, percutaneous ultrasonic lithotripsy may result in rapid convalescence with diminished pain.- - - - - - - - - - ranking = 0.2keywords = extraction (Clic here for more details about this article) |
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