Examinando por Autor "Feria F., Miguel"

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    Cirugía percutánea de la litiasis renal en la era de la litotripsia extracorpórea: Experiencia en 301 pacientes
    (Sociedad de Cirujanos de Chile, 2010) Castillo C., Octavio A.; Vidal M., Ivar; Campos P., Rodrigo; Sepúlveda T., Francisco; Fonerón V., Alejandro; Feria F., Miguel
    Introduction: Percutaneous renal surgery was introduced more than 20 years ago in urological practice. Extracorporeal Shock Wave Lithotripsy (ESWL) enter the urological scene shortly after. Our objective is to show our experience in percutaneous renal surgery after the introduction of the ESWL in our institution. Material and Methods: Surgical outcomes of 301 patients who underwent percutaneous renal surgery as treatment of renal stones were analyzed. This series begins just before the introduction of ESWL in our unit. Results: Renal pelvis was the most frequent localization with 142 cases (47.2%). There were 51 patients with straghorn calculi. 255 (84.7%) were stone free after one single procedure. Residual fragments were managed with many methods, until only 16 patients (5.4%) had residual fragments. Complications occurred in 26 patients (8.9%). There was no mortality. Conclusions: Percutaneous surgery is an important tool in the management of renal stones. In general, renal stones managed with this procedure, are more complex, however the achievement of good results is possible.
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    Morbilidad de la linfadenectomía lumboaórtica laparoscópica en pacientes con tumor testicular no seminomatoso en estadío clínico A
    (Sociedad de Cirujanos de Chile, 2009) Castillo C., Octavio A.; Feria F., Miguel; Vidal M., Ivar; Rioja Z., Jorge; Sánchez S., Rafael
    Retroperitoneal Lymph node dissection is part of the treatment of patients with nonseminomatous germ cell tumors stage I (NSGCT). Aim: To report the immediate surgical outcomes of patients subjected to laparoscopic retroperitoneal lymph node dissection. Material and Methods: Prospective analysis of the surgical outcomes of 118 patients aged 15 to 44 years, who underwent Laparoscopic Retroperitoneal Lymph Node Dissection (L-RPLND) for NSGCT stage I. Results: Median blood loss was 50 cc (range 10-1.000 cc), median operative time was 120 min. (range 60-300 min). Mean hospital stay was 41.4 hours. Twelve patients (10.2%) had operative complications. Ten had vascular injuries (8.5%), one had a duodenal injury (0.85%) and one had an acute pulmonary edema (0.85%). Eight lesions were repaired laparoscopically and three required conversion to open surgery. There was no mortality in this series. Conclusions: L-RPLND had an acceptable complication rate in this series of patients. Most of the complications could be resolved laparoscopically
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    Nefrectomía simple laparoscópica NOTES y LESS con el uso de instrumentos laparoscópicos estándar: Experiencia inicial en 3 casos
    (Sociedad de Cirujanos de Chile, 2010) Castillo C., Octavio A.; Vidal M., Ivar; Campos P., Rodrigo; Fonerón V., Alejandro; Feria F., Miguel; Sepúlveda T., Francisco
    Introduction: Natural orifice transluminal endoscopic surgery (NOTES) and Laparoendoscopic Single Site Surgery (LESS) are emerging technologies, which allows to performed surgical procedures avoiding any surgical scars. However there are some problems due to the lack of equipment available for these procedures. The aim of these study is to present our initial experience with the transvaginal nephrectomy NOTES and LESS using standard laparoscopic instruments. Material and Methods: Two female patients (23 and 26 years old) with diagnosis of recurrent urinary tract infection and renal atrophy. A laparoscopic simple nephrectomy with transvaginal NOTES assistance was performed, using one access port for the camera and two abdominal work ports of 10 and 3mm. In a third patient (15 years old) a transumbilical LESS nephrectomy was preformed with the use of standard laparoscopic instruments. Results: Average operative time was 110 min (40-200), with an estimated blood loss of 200 cc. There were no perioperative complications and all patients were discharged 36 hours after surgery. Conclusion: Laparoscopic simple nephrectomy with transvaginal NOTES assistance and LESS are technically feasible with the use of standard laparoscopic instruments. Special access trocars and instruments development for this procedure will allow to performed a pure technique without the use of abdominal incisions.