The management of paediatric urolithiasis

OBJECTIVE: To evaluate the efficacy and safety of the management of paediatric urolithiasis by extracorporeal shock wave lithotripsy (ESWL), endoscopic ureterolithotomy, percutaneous nephrolithotomy (PCNL) and open nephrolithotomy. PATIENTS AND METHODS: In a 3-year period (1997-1999), 59 children were treated for urolithiasis and underwent a total of 79 procedures. Thirty-two ESWL sessions were performed in 23 children (mean age 7.4 years, median 6.0). PCNL was undertaken in 30 renal units in 25 children (mean age 6.4 years, median 4.0). Eight patients (mean age 7.8 years, median 5) underwent 17 ureteroscopic procedures, six of which involved the use of a holmium laser. Three children with staghorn calculi underwent open nephrolithotomy under conditions of renal ischaemia and hypothermia. RESULTS: Of the 23 children treated using ESWL, 21 (91%) became stone-free; 17 underwent one ESWL session (74%), three had two sessions and three (13%) had three sessions. All eight patients who underwent ureteroscopy became stone-free. Four patients in whom the stone could not be reached by ureteroscopy initially had a JJ stent inserted, and the stone and stent subsequently removed. Stones were cleared using PCNL in 27 of 30 renal units (90%); three patients who had residual stone fragments were rendered stone-free by ESWL. Two of three children undergoing open nephrolithotomy were stone-free after surgery and the remaining one rendered stone-free with ESWL. Metabolic evaluation showed that 25 of 45 children (55%) had a urinary infection, eight (18%) had hyperoxaluria, three (7%) had hypercalciuria, two (4%) had cystinuria, and no identifiable cause was found in seven (16%). Treatment by a single modality rendered 52 of the 59 children (88%) stone-free; when the different modalities were combined, 57 of 59 patients (97%) were cleared of their stones. CONCLUSIONS: Technological advances in ESWL, ureteroscopy and PCNL have had a significant effect on the management of urolithiasis in children, allowing a safe and successful outcome. The comprehensive care of children with urolithiasis should include a full metabolic evaluation. Anatomical anomalies contribute to the complexity of many cases, necessitating a close liaison between adult and paediatric urologists, nephrologists and radiologists to optimize stone management in children.     

Multimodal management of urolithiasis in renal transplantation

OBJECTIVE: To report the largest single series of renal transplant patients (adults and children) with urolithiasis, assess the risk factors associated with urolithiasis in renal transplant recipients, and report the outcome of the multimodal management by endourological and open procedures. PATIENTS AND METHODS: The records of all patients undergoing renal transplantation between 1977 and 2003 were reviewed. In all, 2085 patients had a renal transplant at our centre and 21 (17 adults and four children) developed urinary tract calculi. Their mode of presentation, investigations, treatments, complications and outcomes were recorded. Investigations included one or more of the following; ultrasonography (US), plain abdominal X-ray, intravenous urography, nephrostogram and computed tomography. Management of these calculi involved extracorporeal shock wave lithotripsy (ESWL), flexible ureteroscopy and in situ lithotripsy, percutaneous nephrolithotomy (PCNL), open pyelolithotomy and open cystolitholapaxy. RESULTS: Thirteen patients had renal calculi, seven had ureteric calculi and one had bladder calculi. The incidence of urolithiasis was 21/2085 (1.01%) in the series. Urolithiasis was incidentally discovered on routine US in six patients, six presented with oliguria or anuria, including one with acute renal failure, four with a painful graft, three with haematuria, one with sepsis secondary to obstruction and infection and in one, urolithiasis was found after failure to remove a stent. Ten patients (63%) had an identifiable metabolic cause for urolithiasis, two by obstruction, two stent-related, one secondary to infection and in six no cause was identifiable. Thirteen required more than one treatment method; 13 (69%) were treated by ESWL, eight of whom required multiple sessions; eight required ureteric stent insertion before a second procedure and four required a nephrostomy tube to relieve obstruction. Two patients had flexible ureteroscopy and stone extraction, three had a PCNL and one had open cystolithotomy. PCNL failed in one patient who subsequently had successful open pyelolithotomy. All patients were rendered stone-free when different treatments were combined. CONCLUSIONS: The incidence of urolithiasis in renal transplant patients is low. There is a high incidence of metabolic causes and therefore renal transplant patients with urolithiasis should undergo comprehensive metabolic screening. Management of these patients requires a multidisciplinary approach by renal physicians, transplant surgeons and urologists.     

小儿肾结石的ESWL和PCNL治疗

目的　总结小儿肾结石ESWL和经皮微造瘘输尿管镜取石术 (mini PCNL)治疗经验。　方法　回顾性分析 10 5例小儿肾结石诊治资料 ,男 72例、女 3 3例 ,平均年龄 8.7岁。其中伴尿路畸形 2 1例 (2 0 .0 % )。ESWL治疗 68例 ;mini PCNL治疗 3 3例 ,4例联合ESWL ;改行开放手术 4例。　结果　 68例ESWL治疗 92次 ,结石完全排空 57例 (83 .8% ) ,1次ESWL治疗成功 47例 (69.1% ) ,2次治疗 18例 (2 6.5% ) ,3次治疗 2例 (4.4% ) ;2例石街经输尿管镜治疗成功。 3 3例mini PCNL治疗者 ,一期PCNL成功 2 4例 (72 .7% ) ,二期PCNL治疗 9例 (2 7.3 % ) ;3例伴肾盂输尿管连接部梗阻者同时行顺行肾盂输尿管内切开术 ,一期结石清除率 2 4例 (72 .7% ) ,二期结石清除率 2 9例(87.9% ) ,联合ESWL 4例 ,总结石清除率为 97.0 %。 4例开放手术中 2例同时行肾盂输尿管成形术 ,1例多发结石术后有残余结石。　结论　ESWL是治疗小儿肾结石安全、有效的首选方法 ;选择PCNL治疗应根据结石和设备技术情况 ,联合ESWL成功率更高     

复杂性肾结石治疗方法的比较

目的：探讨复杂性肾结石的首选治疗方法。方法：分别应用ESWL、开放手术、经皮肾镜取石术（PCNL）及微创经皮肾镜取石术（MPCNL）治疗复杂性肾结石患者132例,并随访观察其疗效及并发症发生率。结果：采用ESWL治疗56例,3个月后结石排净率53．6％;采用开放手术治疗37冽,手术均获成功,结石排净率达96％;采用PCNI。治疗39例,3个月后结石排净率为92％。结论：PcNL＋MPCNL＋ESWL为复杂性。肾结石的首选治疗方法,可适合于绝大部分复杂性肾结石患者,其中ESWI。适用于无肾盂肾盏扩张的复杂性且硬度较低的肾结石。开放手术可作为其他治疗方法的适当补充术式。     

Experience of extracorporeal shock-wave lithotripsy for the urolithiasis in horseshoe kidney]

At Osaka City University, 1,987 patients with urolithiasis have been treated by extra-corporeal shockwave lithotripsy (ESWL) during a four-year period. We treated 5 patients with horseshoe kidney and the obtained results were analyzed retrospectively. Three of these patients, who had a solitary stone could successfully be treated by ESWL as monotherapy. One who had multiple stones required transurethral lithotripsy after ESWL due to stone-street. The remaining 1 patient who had undergone heminephrectomy developed perirenal hematoma after ESWL, which spontaneously disappeared without any specific treatment. We discuss the special care related to the use of ESWL in the horseshoe kidney.     

Extracorporeal lithotripsy endoscopically controlled by ureterorenoscopy (LECURS): a new concept for the treatment of kidney stones—first clinical experience using digital ureterorenoscopes

Purpose

To evaluate the feasibility and usefulness of extracorporeal lithotripsy endoscopically controlled by simultaneous flexible ureterorenoscopy (LECURS) and combined with Holmium laser lithotripsy for kidney stones surgery.

Methods

Retrograde flexible ureteroscopy allowed stone visualization and intrarenal relocation when possible. Extracorporeal schock wave lithotripsy (ESWL) was performed under direct vision allowing constant focal zone adjustment for optimal stone fragmentation. Holmium laser lithotripsy was used simultaneously when necessary. Post-operative assessment included ultrasound at day one and abdominal CT scan 3 weeks later to evaluate for residual fragments.

Results

Six patients with kidney stones were recruited including 3 with relative contraindication to ESWL. One patient had a stone beyond an infundibular stenosis and 2 had multiple stones in a horseshoe kidney with an uretero-pelvic junction (UPJ) stricture. A 100 % stone fragmentation rate was obtained. Post-operative ultrasound was normal in 5 patients and showed slight peri-renal infiltration in the other. One patient developed an obstructive pyelonephritis requiring antibiotics and changing a double J to a ureteral catheter. No other complications were noted. Three patients (50 %) were stone free after LECURS. Three patients underwent a second-look procedure for small (<3 mm) retained residual fragments. No damage was seen with the digital ureteroscopes, laser fibers or stone baskets.

Conclusions

This initial experience with LECURS has shown to be feasible and safe. This opens the opportunity for further evaluation of this approach in order to improve outcomes of both approaches.     

斜仰卧截石位经皮肾镜联合输尿管镜处理输尿管上段复杂结石

目的：探讨斜仰卧截石位经皮肾镜联合输尿管镜处理输尿管上段复杂结石的安全性及有效性。方法2009年1月～2012年10月,采取斜仰卧截石位经皮肾镜联合输尿管镜治疗输尿管上段复杂结石67例,气管插管全麻,先行经皮肾镜处理结石,向下移位结石再行输尿管镜将移位结石碎石并经工作通道冲出。结果67例手术均一次完成,手术时间46～106 min,平均76 min。一次结石清除率92．5％（62/67）,结石残留5例,配合ESWL 2周后结石完全清除。均无大出血、输尿管撕脱、脏器损伤等并发症。结论斜仰卧截石位经皮肾镜联合输尿管镜处理输尿管上段复杂结石具有体位舒适,避免术中体位变换带来的不便,手术时间短,有利于术中麻醉监护,碎石取石效果好,并发症少的优点,治疗的安全性高,值得临床推广。     

Tubeless percutaneous nephrolithotomy: a prospective feasibility study and review of previous reports

OBJECTIVE: To evaluate the status of tubeless percutaneous nephrolithotomy (PCNL) in managing renal and upper ureteric calculi, from initial experience and a review of previous reports. PATIENTS AND METHODS: From September 2004 to December 2004, 46 patients were scheduled for tubeless PCNL in a prospective study. Patients with solitary kidney, or undergoing bilateral simultaneous PCNL or requiring a supracostal access were also enrolled. Patients needing more than three percutaneous access tracts, or with significant bleeding or a significant residual stone burden necessitating a staged second-look nephroscopy were excluded. At the end of the procedure, a JJ ureteric stent was placed antegradely and a nephrostomy tube avoided. The patients' demographic data, the outcomes during and after surgery, complications, success rate, and stent-related morbidity were analysed. Previous reports were reviewed to evaluate the current status of tubeless PCNL. RESULTS: Of the 46 patients initially considered only 40 (45 renal units) were assessed. The mean stone size in these patients was 33 mm and 23 patients had multiple stones. Three patients had a serum creatinine level of >2 mg/dL (>177 micromol/L). Five patients had successful bilateral simultaneous tubeless PCNL. In all, 51 tracts were required in 45 renal units, 30 of which were supracostal. The mean decrease in haemoglobin was 1.2 g/dL and two patients required a blood transfusion after PCNL. There was no urine leakage or formation of urinoma after surgery, and no major chest complications in patients requiring a supracostal access tract, except for one with hydrothorax, managed conservatively. The mean hospital stay was 26 h and analgesic requirement 40.6 mg of diclofenac. Stones were completely cleared in 87% of renal units and 9% had residual fragments of < 5 mm. Two patients required extracorporeal lithotripsy for residual calculi. In all, 30% of patients had bothersome stent-related symptoms and 60% needed analgesics and/or antispasmodics to treat them. CONCLUSION: Tubeless PCNL was safe and effective even in patients with a solitary kidney, or with three renal access tracts or supracostal access, or with deranged renal values and in those requiring bilateral simultaneous PCNL. The literature review suggested a need for prospective, randomized studies to evaluate the role of fibrin sealant and/or cauterization of the nephrostomy tract in tubeless PCNL.     

上尿路结石的手术方式选择(附2 528例临床报告)

目的分析上尿路结石的各种手术方式，探讨临床治疗中合理的术式选择。方法回顾性分析1997年2004年收治的2528例上尿路结行患者的临床分类、手术方式及并发症。结果单纯性肾结石和输尿管上段结石以ESWL治疗为主，3个月内结石排净率为86％。5％形成石街，9％经2—3次ESWL治疗无排石现象，转手术率14％；中、下段结石采用输尿管镜下气压弹道碎石治疗为主，结石排净率为92％。经皮肾穿肾镜取石，肾盂和输尿管上段结石的取净率为100％；鹿角形结石的取净率为95％；复杂性肾结右选择升放性手术取石或联合方式治疗为主，因肾脏无功能而行一侧肾切除7例（1．6％），下术后输尿管漏7例，切口经久不愈3例，肾脏大出血5例，无死亡病例。结论上尿路结石的微创手术可以避免开放于术对患者造成的痛苦，减少术后并发症，但也不能盲目采用，对于复杂性结石，开放手术仍有实际应用价值。     

Laparoscopy-assisted transperitoneal percutaneous nephrolithotomy for recurrent calculus in isthmic calix of horseshoe kidney

BACKGROUND AND PURPOSE: Management of urolithiasis in a horseshoe kidney (HSK) poses a unique challenge. Although most patients can be managed by a combination of percutaneous nephrolithotomy (PCNL) and extracorporeal shockwave lithotripsy (SWL), calculi in the isthmic calix remain difficult to treat, as this area is out of reach during rigid PCNL, and, owing to the poor evacuation of the fragments, the results of SWL are suboptimal. CASE REPORT: A 59-year-old man known to have an HSK presented with right-sided lower-abdominal pain and episodes of urinary infection. In the past, he had undergone pyelolithotomy and lithotripsy for lithiasis in the kidney. Imaging studies identified a large recurrent calculus in the anteriorly directed isthmic calix. This was treated successfully by a laparoscopy-assisted transperitoneal PCNL. The laparoscopic view allowed the bowel to be retracted away from the site of the HSK, and PCNL guided by fluoroscopy and laparoscopy was performed. Complete stone clearance was achieved in a single stage. The patient remains free of symptoms and recurrence 3 months later. CONCLUSION: We believe this to be the first report describing this novel approach to lithiasis in an HSK.     

Sixteen years of experience with stone management in horseshoe kidneys

INTRODUCTION: Horseshoe kidney is the commonest congenital renal fusion anomaly, and is often complicated by urolithiasis. We focus on our 16 years of experience with stone management in horseshoe kidneys. MATERIALS AND METHODS: We reviewed the progress of 44 patients treated between 1987 and 2002. Shock wave lithotripsy (SWL) was used in 25 patients; the average stone surface area was 91 (range 10-1,600) mm2 and average follow-up was 36.5 (range 1-91) months. 19 patients underwent percutaneous nephrolithotomy (PCNL); the average stone surface area was 197 (range 6-2,400) mm2. Follow-up data are available for 8 patients and the average follow-up was 42.3 (range 3-144) months. RESULTS: In the SWL group the 3-month stone-free rate (SFR) was only 31%. In the PCNL group the SFR was 75% on the postoperative day-1 KUB. Complications occurred in 9 patients. CONCLUSIONS: Stone management in horseshoe kidneys is challenging: PCNL produces a higher SFR with minimal major complications and failed access. PCNL thus appears to be the preferred management option in patients with urolithiasis in horseshoe kidneys.     

Minimally invasive treatment of urinary tract calculi in children.

OBJECTIVE: To report experience of a broad multimodality approach to the treatment of calculi in children using extracorporeal shock wave lithotripsy (ESWL), ureteroscopy/laser lithotripsy, lithoclast and percutaneous nephrolithotomy (PCNL). PATIENTS AND METHODS: The treatment and outcome were reviewed in 43 children managed by a range of minimally invasive modalities, either singly or in combination, between 1990 and 1997. These patients represent a selected group deemed suitable for minimally invasive management during a period of developing experience with these techniques. Of this cohort, six children had previously undergone open stone surgery and contributory metabolic abnormalities were identified in seven. ESWL was the sole treatment modality in 24 children (56%). In five children (12%) ureteroscopy/laser lithotripsy was combined with ESWL, eight (18%) underwent ureteroscopy/laser lithotripsy alone, whilst three with bladder stones were treated with the lithoclast. Combined therapy including PCNL was required in three patients. RESULTS: Of the 43 children treated, 38 (88%) were rendered stone-free. Metabolic disorders accounted for three of the five cases of residual calculi. Complications requiring intervention occurred in two children (7%) and three subsequently underwent open pyelolithotomy or ureterolithotomy after unsuccessful minimally invasive treatment. CONCLUSIONS: Used selectively, the range of minimally invasive procedures available for adults, including ureteroscopy and PCNL, can be safely and effectively extended to the treatment of urinary tract calculi in children. The role of open surgery will diminish further with the availability of specialized instruments for paediatric PCNL.     

Safety and efficacy of percutaneous nephrolithotomy for the treatment of paediatric urolithiasis

INTRODUCTION

Paediatric percutaneous nephrolithotomy (PCNL) has revolutionised the treatment of paediatric nephrolithiasis. Paediatric PCNL has been performed using both adult and paediatric instruments. Stone clearance rates and complications vary according to the technique used and surgeon experience. We present our experience with PCNL using adult instruments and a 28Fr access tract for large renal calculi in children under 18 years.

METHODS

All patients undergoing PCNL at our institution between 2000 and 2009 were reviewed. Demographics, surgical details and post-operative follow-up information were obtained to identify stone clearance rates and complications.

RESULTS

PCNL was performed in 32 renal units in 31 patients (mean age: 10.8 years). The mean stone diameter was 19mm (range: 5–40mm). Twenty-six cases required single puncture and six required multiple tracts. Overall, 11 staghorn stones, 10 multiple calyceal stones and 11 single stones were treated. Twenty-seven patients (84%) were completely stone free following initial PCNL. Two cases had extracorporeal shock wave lithotripsy for residual fragments, giving an overall stone free rate of 91% following treatment. There was no significant bleeding or sepsis encountered either during the operation or in the post-operative setting. No patient required or received a blood transfusion.

CONCLUSIONS

Paediatric PCNL can be performed safely with minimal morbidity using adult instruments for large stone burden, enabling rapid and complete stone clearance.     

Current minimally invasive and endourological therapy in pediatric nephrolithiasis

IntroductionChildren with complex urinary tract stones present a treatment challenge. There is still no clear consensus regarding their management. Therefore, our goal was to review the endourological therapies in children presenting with complex nephrolithiasis, updated to 2013.MethodsThis was a review of published articles, from 1981 to 2013, related to pediatric nephrolithiasis, staghorn calculi, lower pole kidney stones, and uninephric children. The sites from which information was retrieved covered PubMed, the American Urological Association, and Medline.ResultsWe reviewed 147 articles that demonstrated that small lower pole stones of <1 cm may be treated successfully with ESWL in children who are able to cooperate or under sedation; staghorn stones, are better treated by PCNL. Flexible ureterorenoscopy is considered a second option for smaller stones and an alternative for middle size stones in case of failure of ESWL or contraindications for PCNL.ConclusionESWL alone, for a large stone, or in a lower pole in uninephric children is not the standard of care. PCNL offer an appropriate and therapeutic modality in specific situation i.e. larger stones, the lower pole stones with stone free rate approaching 80%. Nevertheless, flexible ureteroscopy with the newest high definition cameras has a promising potential in reaching a 100% stone-free rate in the near future.     

Percutaneous nephrolithotomy in polycystic kidney disease: is it safe and effective?

Purpose

Nephrolithiasis is common in patients with autosomal dominant polycystic kidney disease (ADPKD). Percutaneous management of nephrolithiasis is challenging because of a large number of parenchymal cysts and distorted calyceal anatomy. These patients also have varying grades of chronic kidney disease and are at increased risk of bleeding, which further increases the challenge. The objective of the study is to study the efficacy and safety of PCNL in ADPKD.

Materials and methods

We retrospectively analyzed twenty-two patients of ADPKD with renal calculi managed by percutaneous nephrolithtomy (PCNL) from January 2000 to January 2010. Patients were divided into two groups: group I (serum creatinine ??1.5?mg%), group II (serum creatinine >1.5?mg%).

Results

PCNL was done in 25 renal units among 22 patients. Sixteen patients had chronic kidney disease, and the average stone burden was 2.4?cm?±?0.8?cm. The overall success rate (complete stone clearance/residual fragments <4?mm) was 88% (22/25). Two patients required relook PCNL for residual stone and one required ESWL for the incomplete clearance. Mean preoperative serum creatinine in group I was 0.9?±?0.1?mg% and in group II 3.1?±?1.2?mg%. There was improvement in serum creatinine in group II (1.4?±?0.5?mg%) postoperatively. Three patients required blood transfusion (13%) and four patients had fever postoperatively (18%). None of the patients required angioembolization.

Conclusion

Despite the distorted calyceal anatomy and associated chronic kidney disease, PCNL is safe and effective in managing nephrolithiasis in polycystic kidney disease.     

LOWER CALICEAL STONE CLEARANCE AFTER SHOCK WAVE LITHOTRIPSY OR URETEROSCOPY: THE IMPACT OF LOWER POLE RADIOGRAPHIC ANATOMY

Purpose

We determine whether there is a significant relationship between the spatial anatomy of the lower pole, as seen on preoperative excretory urography (IVP), and the outcome after shock wave lithotripsy or ureteroscopy for a solitary lower pole caliceal stone 15 mm. or less.

Materials and Methods

Between January 1992 and June 1996, 34 patients with 15 mm. or less solitary lower pole stone underwent ureteroscopy with intracorporeal lithotripsy¹³ or extracorporeal shock wave lithotripsy (ESWL [dagger]) with a Dornier HM3 lithotriptor [dagger] ^[21]. On pretreatment IVP lower pole infundibular length and width, infundibulopelvic angle of the stone bearing calix were measured. Stone size and area were determined from an abdominal plain x-ray. A plain x-ray of the kidneys, ureters and bladder was obtained in all patients at a median followup of 12.3 and 8 months in the ureteroscopy and ESWL groups, respectively.[dagger] Dornier Medical Systems, Inc., Marietta, Georgia.

Results

After initial therapy the overall stone-free rate was 62 and 52% in the ureteroscopy and ESWL groups, respectively. Stone-free status after ESWL was significantly related to each anatomical measurement. Infundibulopelvic angle 90 degrees or greater, and infundibular length less than 3 cm. and width greater than 5 mm. were each noted to correlate with an improved stone-free rate after ESWL. In contrast, the stone-free rate after ureteroscopy was not statistically significantly impacted by these anatomical features, although a clinical stone-free trend was identified relating to a favorable infundibular length and infundibulopelvic angle. The infundibulopelvic angle was 90 degrees or greater in 4 stone-free patients (12% overall), including 2 who underwent ureteroscopy and 2 who underwent ESWL. On the other hand, in 2 and 4 stone-free patients (18% overall) who underwent ureteroscopy and ESWL, respectively, favorable radiographic features consisted of a short, wide but acutely angulated infundibulum with the infundibulopelvic angle less than 90 degrees, and infundibular length less than 3 cm. and width 5 mm. or greater. In contrast, in 4 and 6 patients (29% overall) who underwent ureteroscopy and ESWL, respectively, all 3 radiographic features were unfavorable with the infundibulopelvic angle less than 90 degrees, and infundibular length greater than 3 cm. and width less than 5 mm. In these cases the stone-free rate was 50 and 17% after ureteroscopy and ESWL, respectively.

Conclusions

The 3 major radiographic features of the lower pole calix (infundibulopelvic angle, and infundibular length and width) can be easily measured on standard IVP using a ruler and protractor. Each factor individually has a statistically significant influence on stone clearance after ESWL. A wide infundibulopelvic angle or short infundibular length and broad infundibular width regardless of infundibulopelvic angle are significant favorable factors for stone clearance following ESWL. Conversely, these factors have a cumulatively negative effect on the stone clearance rate after ESWL when they are all unfavorable. In ureteroscopy spatial anatomy has less of a role in regard to stone clearance but it may have a negative impact when there is uniformly unfavorable anatomy.     

Extracorporeal shock wave lithotripsy in the prone position for stones situated anteriorly

Stones situated anteriorly cannot be satisfactorily reached with extracorporeal shock wave lithotripsy (ESWL) in the supine position. By assuming the prone position, patients with stones in horseshoe or ectopic kidneys or in the iliac ureter can be treated by ESWL with the same success rate as patients with posterior stones. This new technique has been used in 30 patients with iliac ureteral stones, 5 patients with caliceal stones in horseshoe kidneys and 1 patient with a pyelic stone in a sacral kidney.     

Laparoscopic Pyelolithotomy in a Pelvic Kidney: A Case Report and Review of the Literature

Background and Objectives:

Laparoscopic pyelolithotomy was performed in a pelvic kidney with a large renal pelvis calculus.

Methods and Results:

Laparoscopic pyelolithotomy was successfully performed in a pelvic kidney with an operative time of 310 minutes. The use of intraoperative fluoroscopy and a semi-automatic suturing device greatly facilitated the procedure. The patient''s operative pain was managed with 3 doses of ketorolac; she resumed a regular diet the day after surgery, and was discharged on the first postoperative day.

Conclusions:

For patients with a large stone in the renal pelvis of an ectopic kidney, laparoscopic pyelolithotomy provides an effective approach.     

移植肾尿路结石46例诊治体会

目的探讨肾移植术后尿路结石的诊断和治疗,提高长期存活率。方法回顾性分析1980年1月至2011年6月46例移植肾结石患者的临床资料。结果 35例为肉眼血尿,10例为体检时B超发现,1例为急性无尿发病,均无肾绞痛。移植肾结石24例,移植输尿管结石22例,结石大小0.7～2.0 cm,结石发病时间为术后3.5（0.4～15）年。42例行体外冲击波碎石（ES-WL）,其中3例无效行输尿管镜下钬激光碎石术和1例行经皮肾镜取石术（PCNL）,4例尿酸结石给予枸橼酸氢钾钠（友来特）药物治疗。随访3个月：42例ESWL中,结石排净36例（85.72%）,结石残留2例（4.76%）,4例（9.52%）无效改用腔镜治疗后结石排出;4例尿酸结石口服枸橼酸氢钾钠结石大部分排出。结论移植肾结石缺乏典型肾绞痛表现,体外冲击波碎石术是治疗移植肾结石安全、有效的主要方法。     

经皮肾穿刺造瘘碎石术联合体外冲击波碎石术治疗鹿角形肾结石

目的：探讨微创经皮肾穿刺造瘘碎石取石术(PCNL)联合体外冲击波碎石术(ESWL)治疗鹿角形肾结石的可行性。方法：对部分鹿角形结石93例，完全鹿角形结石34例，采用PCNL加ESWL加PCNL的“三明治”取石术。结果：127例均行一期穿刺取石，单通道取石78例，双通道取石38例，三通道取石21例。ESWL76例，2次以上PCNL99例。结石清除率85．03％，平均手术时间2h50min；平均住院15d。未发现明显出血等并发症。结论：PCNL加ESWL加PCNL的“三明治”取石术是一种治疗鹿角形肾结石的有效方法。