Local Anesthetic Flexible Ureterorenoscopy in the Management of Urolithiasis.

Introduction: Patients unfit for general anesthesia who present with renal tract pathology currently have limited options. Many of these patients present in the emergency setting with imperative reasons for intervention, including sepsis, renal failure, and pain. Conservative management and temporizing measures, such as percutaneous nephrostomy, are associated with significant morbidity. Ureterorenoscopy (URS) is a central component of the management of upper tract disease and is routinely performed under general anesthesia. We describe our institution's experience of URS using only local anesthetic (LA) lubricating gel per urethra. Methods: A single centre, retrospective analysis of 78 patients was performed for an 11 year period. Demographic data and Charlson comorbidity index scoring were collected for all patients. Outcomes, including stone-free rates, tolerability, and complications, were analyzed. Results: In total 58% of patients were men. Mean age was 68 and Charlson comorbidity index was 5.2. Indications for URS included pain (68%) and renal failure (15%). Totally 10% of patients previously had retrograde stenting because of sepsis. Median stone size was 8 mm. All patients were able to tolerate the procedure and none were abandoned because of pain. The overall stone-free rate was 82% after one procedure. The stone-free rate for mid and distal ureteral stones was 97%. Nineteen percent of patients were left with a ureteral stent after the procedure, with the remaining patients left totally tubeless. Median length of stay was 1 day. There were no complications above Clavien Grade 2. Conclusion: Urologists are increasingly faced with unfit patients presenting with urolithiasis. In the appropriately selected patient, LA flexible ureterorenoscopy is a feasible option with good outcomes. This approach is a useful addition to the armamentarium available to patients deemed unsuitable for general or regional anesthesia.

Supermini nefrolitotomía percutánea para cálculos renales menores de 25 mm en pacientes pediátricos: ¿podría ser una alternativa a la litotricia por ondas de choque? / Super-mini percutaneous nephrolithotomy for renal stone less than 25 mm in pediatric patients: Could it be an alternative to shockwave lithotripsy?

Objetivo: Evaluar la eficacia de 2 técnicas diferentes, la litotricia por ondas de choque (LOC) frente a la supermini nefrolitotomía percutánea (SMP), en términos de éxito y tasas de complicaciones en cálculos renales pediátricos de tamaño < 25 mm. Pacientes y métodos: Se incluyeron un total de 219 niños (edades comprendidas entre uno y 17 años) sometidos a 2 modalidades de tratamiento diferentes (LOC vs. SMP) para cálculos renales < 25 mm. Dependiendo del tipo de procedimiento aplicado, los niños se dividieron en 2 grupos diferentes: grupo 1 (n = 108), formado por niños tratados con LOC, y grupo 2 (n = 111), integrado por niños tratados con SMP. Todos los parámetros relacionados con el tratamiento (tasas libres de cálculos, número de sesiones, duración del tratamiento, hospitalización, presencia de fragmentos residuales, complicaciones así como la necesidad de intervenciones adicionales) se observaron y evaluaron entre 2 grupos de forma comparativa. Resultados: La evaluación de nuestros datos ha demostrado claramente que el porcentaje de fragmentos residuales fue significativamente mayor en los casos sometidos a procedimiento de LOC en comparación con SMP. Aunque LOC requirió varias sesiones bajo anestesia general en un cierto porcentaje de los casos (54,6%), SMP tuvo éxito en una sesión en todos los casos. Por último, pero no por ello menos importante, además de las tasas de complicaciones menores similares observadas en ambos grupos de casos, no se observó ninguna complicación grave y ningún caso requirió transfusión de sangre después de estos 2 procedimientos, sin tasas significativas de descenso en los niveles de hemoglobina. Conclusiones: Aunque la LOC sigue siendo la modalidad de tratamiento preferida para la mayoría de los cálculos renales en niños por su naturaleza segura y no invasiva, la modalidad de SMP puede aplicarse como una alternativa valiosa en esta población específica de pacientes por sus excelentes tasas de ausencia de cálculos obtenidas en una sesión única y tasas de complicaciones aceptables en el manejo invasivo mínimo de cálculos < 25 mm

Aim: To evaluate the efficacy of 2 different techniques: shock wave lithotripsy (SWL) vs. super-mini percutaneous nephrolithotomy (SMP), in terms of success as well as complication rates in pediatric renal stones sizing < 25 mm. Patients and methods: A total of 219 children (aging between 1-17 years) undergoing 2 different treatment modalities (SWL vs. SMP) for kidney stones < 25 mm were included. Depending on the type of the procedure applied, children were divided into 2 different groups: group 1 (n = 108), children treated with SWL, and group 2 (n = 111), children treated with SMP. All treatment related parameters (stone free rates, number of sessions, treatment duration, hospitalization, presence of the residual fragments, complications as well as the need for additional interventions) were noted and evaluated between 2 groups in a comparative manner. Results: Evaluation of our data have clearly demonstrated that the percentage of residual fragments after SWL was significantly higher when compared with SMP. Although SWL required several sessions under general anesthesia in a certain per cent of the cases (54.6%), SMP was successful in one session in all of the cases. Last but not least, in addition to the similar minor complication rates observed in both group of cases, no major complication observed in any case and no case in both groups again required blood transfusion after these 2 procedures with no significant drop rates in hemoglobin levels. Conclusions:Although SWL is still the preferred treatment modality for the majority of kidney stones in children due to its safe and non-invasive nature, SMP modality may be applied as a valuable alternative in this specific patient population for its excellent stone free rates obtained in a single session and acceptable complication rates in the minimal invasive management of stones < 25 mm

Litotricia por ondas de choque con música: un tratamiento menos doloroso y más satisfactorio / Shockwave lithotripsy with music: Less painful and more satisfactory treatment

Introducción: El objetivo del estudio fue determinar si escuchar música durante una sesión de litotricia extracorpórea por ondas de choque (LEOC) mejora el dolor de los pacientes. Material y método: Se realizó una aleatorización simple y oculta de pacientes con litiasis renales o ureterales que acudieron por vez primera a una sesión de LEOC de 7.000 ondas, entre septiembre y diciembre de 2014. Un grupo recibió música mientras que el otro no. Se registraron la edad, sexo, localización de la litiasis (renal/ureteral) y 2 cuestionarios pre-LEOC (cuestionario A) y post-LEOC (cuestionario B). Cada cuestionario contiene una pregunta sobre ansiedad y otra sobre dolor en escala Likert (0 al 10). El B, además, contiene otra sobre satisfacción y otra sobre comodidad (Likert 0 al 10). Otras variables fueron la frecuencia cardiaca, respiratoria, tensión arterial sistólica y diastólica en la onda 2.000, 5.000 y 7.000, causa de interrupción del procedimiento, petidina total (mg), analgesia secundaria, energía (J) y frecuencia (Hz). Se realizó un análisis bivariante con t de Student, X2/Fisher y un modelo de regresión lineal múltiple. Resultados: La muestra incluyó a 95 pacientes, con una media de edad de 52 años (±13), 35 mujeres (36,84%), 60 hombres (63,2%); 25 para litiasis ureterales (26,3%) y 70 (26,3%) para renales (73,7%). Un total de 42 pacientes (44,2%) pacientes recibieron música. No hubo diferencias entre las variables demográficas ni en las puntuaciones del cuestionario A. La satisfacción y el dolor fueron mejores en el cuestionario B con música. Conclusión: La música es capaz de disminuir el dolor y mejorar la satisfacción del paciente en los tratamientos con LEOC. Más estudios son necesarios para comprobar este efecto

Introduction: The objective of this study was to determine whether listening to music during a session of extracorporeal shockwave lithotripsy (ESWL) improves patients' pain. Material and method: A simple, blind randomisation was undertaken of patients with kidney and ureter stones attending an ESWL session of 7,000 waves for the first time, between September and December 2014. One group was given music and the other was not. The age, gender, location of stones (kidney/ureter) were recorded and 2 questionnaires: pre ESWL (questionnaire A) and postESWL (questionnaire B). Each questionnaire contained a question about anxiety and another question on pain on the Likert scale (0-10). Questionnaire B also had a question on satisfaction and comfort (Likert 0-10). Other variables included heart rate, respiratory rate, systolic and diastolic blood pressure on wave 2,000, 5,000 and 7,000, reason for halting the procedure, total pethidine (mg), secondary analgesia, energy (J) and frequency (Hz). Bivariate analysis using the Student's t-test, X2/Fisher test and a multiple linear regression model. Results: The sample comprised 95 patients, with a mean age of 52 (±13) years, 35 (36.84%) females, 60 (63.2%) males. A total of 25 (26.3%) ureter stones and 70 (73.7%) kidney stones. A number of 42 (44.2%) patients were given music. There were no differences between the demographic variables or questionnaire A scores. Satisfaction and pain were better on questionnaire B with music. Conclusion: Music can reduce pain and improve patient satisfaction in ESWL treatment. More studies are required to confirm this effect

[Unusual case of struvite urolithiasis in a dog. A case report]. / Ungewöhnlicher Fall von Struvit-Urolithiasis bei einem Hund. Ein Fallbericht.

A dog was referred for nutrition consultation after surgical removal of struvite uroliths from the bladder. Inspection of the dog's current ration revealed a pronounced vitamin-A deficiency together with a marked deficiency of protein, phosphorus and magnesium. Therefore, a supersaturation of the urine with ammonium, magnesium and phosphate, the three constituents of struvite, as a cause of struvite calculi formation appears rather unlikely. Vitamin-A deficiency can promote urinary infections and consequently struvite stone formation because of the lack of the protective effect of vitamin A on the epithelia of the urinary tract. Not only common causes for struvite urolith formation, including urinary supersaturation with stone-forming constituents and urinary tract infection, but also less common causes, including vitamin-A deficiency, which was the presumed trigger in the present case study, have to be taken into consideration. Dietetic measures appear to be a useful tool in such cases to prevent uroliths from reoccurring.

[Rehabilitation of patients with urolithiasis after minimally invasive procedures on the kidneys].

Minimally invasive surgeries in patients with urolithiasis are not always successful. Prevention of inflammatory and cicatrical-sclerotic complications in the postoperative period plays an important role. 49 patients with urolithiasis divided into two groups were followed-up. The study group included 25 patients who underwent percutaneous puncture nephrolitholapaxy. The control group consisted of 24 patients with a history of percutaneous puncture nephrolitholapaxy. In postoperative period, active prevention of inflammation and cicatrical-sclerotic complications using drug Longidaza in combination with magnetic-laser therapy was performed in study group. The control group received standard treatment. 6 months after surgery, 1 (4%) patient in the study group had pyeloectasis approximately 2 cm and obstruction of UPJ of operated kidney, which required re-treatment with Longidaza. In the control group, pyeloectasis and violation of passage through the upper urinary tract were recorded in 4 (16.7%) patients. These data allow to recommend a comprehensive prevention of postoperative inflammation and cicatrical-sclerotic complications using Longidaza and magnetic-laser therapy in patients undergoing minimally invasive surgery of the kidney.