RESUMEN
Techniques that attempt to further reduce the morbidity and improve cosmesis of laparoscopic surgery have particularly generated interest. Since its initial urologic description in 2007, there has been a surge of interest in laparoendoscopic single-site surgery, which is now an emerging technique within the field of minimally invasive urologic surgery. This report describes a preliminary experience with single-site video endoscopic inguinal lymphadenectomy (SSVEIL) compared with conventional video endoscopic inguinal lymphadenectomy (VEIL) on inguinal nodes management in a 45-year-old man with pT(2) grade 2 squamous cell penile carcinoma and impalpable inguinal nodes. VEIL with saphenous vein preservation in the left leg and SSVEIL on the other side presented no difference concerning operative time (100 vs 120 min), blood loss (50 mL), drainage volume, number of nodes retrieved (8), pain, and oncologic outcome. The patient had an uneventful postoperative course, was discharged 12 hours after the procedure, and preferred the aesthetic result of SSVEIL. Further refinements in technology will likely alleviate many of the persistent technical problems. Additional rigorous comparison studies are needed to evaluate the true benefits of the technique and the extent of its clinical application, mainly oncologic results, before the widespread adoption of SSVEIL. Ultimately, advance breakthroughs in fields of in-vivo instrumentation, robotics, and purpose-built robotic platforms will bring its potential to full clinical realization.
Asunto(s)
Endoscopía , Conducto Inguinal/cirugía , Escisión del Ganglio Linfático/métodos , Grabación de Cinta de Video , Humanos , Masculino , Persona de Mediana EdadRESUMEN
OBJECTIVES: Describe and illustrate a new minimally invasive approach for the radical resection of inguinal lymph nodes. SURGICAL TECHNIQUE: From the experience acquired in 7 operated cases, the video endoscopic inguinal lymphadenectomy (VEIL) technique was standardized in the following surgical steps: 1) Positioning of the inferior member extended in abduction, 2) Introduction of 3 work ports distal to the femoral triangle, 3) Expansion of the working space with gas, 4) Retrograde separation of the skin flap with a harmonic scalpel, 5) Identification and dissection of the long saphenous vein until the oval fossa, 6) Identification of the femoral artery, 7) Distal ligature of the lymph node block at the femoral triangle vertex, 8) Liberation of the lymph node tissue up to the great vessels above the femoral floor, 9) Distal ligature of the long saphenous vein, 10) Control of the saphenofemoral junction, 11) Final liberation of the surgical specimen and endoscopic view showing that all the tissue of the region was resected, 12) Removal of the surgical specimen through the initial orifice, 13) Vacuum drainage and synthesis of the incisions. COMMENTS: The VEIL technique is feasible and allows the radical removal of inguinal lymph nodes in the same limits of conventional surgery dissection. The main anatomic repairs of open surgery can be identified by the endoscopic view, confirming the complete removal of the lymphatic tissue within the pre-established limits. Preliminary results suggest that this technique can potentially reduce surgical morbidity. Oncologic follow-up is yet premature to demonstrate equivalence on the oncologic point of view.
Asunto(s)
Conducto Inguinal/cirugía , Escisión del Ganglio Linfático/métodos , Cirugía Asistida por Video/métodos , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/cirugía , Humanos , Metástasis Linfática , Masculino , Neoplasias del Pene/patología , Neoplasias del Pene/cirugía , Estudios Prospectivos , Resultado del TratamientoRESUMEN
OBJECTIVES: Inguinal metastases are one of the major determinants of mortality in patients with penile cancer. In high risk patients, while prophylatic inguinal lymphadenectomy may offer survival advantages, it still carries a relatively high morbidity. We describe in this paper the first report of the Video Endoscopic Inguinal Lymphadenectomy (VEIL) in the clinical practice, a technique which aims at reducing the morbidity of the procedure without compromising the cancer control or reducing the template of the dissection. METHODS: A 40 year old male with a pT2 penile cancer underwent prophylatic bilateral inguinal lymphadenectomy 6 weeks after partial penectomy. We performed the VEIL technique at the right and a standard radical inguinal lymphadenectomy through an inguinal incision at the left (control). After developing a plane deep to Scarpa's fascia, locating 3 ports and infusing gas at 5-10 mmHg, a retrograde dissection with the same limits as the standard open surgery was performed. Intraoperative data, patology, post operatory evolution and oncological follow-up is described for both sides. RESULTS: Operative time was 130 min for the VEIL and 90 min for open surgery. Eight and 7 lymphnodes were retrieved at the VEIL side and open side, respectively, and none of then showed positivity at pathology. There were no complications in the limb which underwent the VEIL and there was skin necrosis in the side of the open surgery. After 25 months of follow up, no signs of disease progression were noted. Asked about how he felt about both surgeries, the patient chose the endoscopic approach. CONCLUSION: VEIL is feasible in clinical practice. New studies with a greater number of patients and long-term follow-up may confirm the oncological efficacy and possible lower morbidity of these new approach.
Asunto(s)
Endoscopía , Escisión del Ganglio Linfático/métodos , Neoplasias del Pene/cirugía , Adulto , Endoscopía/métodos , Humanos , Masculino , Neoplasias del Pene/patología , Procedimientos Quirúrgicos Urológicos Masculinos/métodos , Grabación en VideoRESUMEN
INTRODUCTION: The present study shows and discusses the preliminary experience of customized and staged approach in the minimally invasive treatment of inflammatory renal diseases, using either pure laparoscopic surgery or the hand-assisted technique. MATERIALS AND METHODS: We prospectively assessed 17 patients with inflammatory renal diseases operated by laparoscopic approach. Mean age was 41 years and the surgical indication was repeated pyelonephritis in 8 cases, pyonephrosis in 4 cases and renal exclusion due to staghorn stone in 5 cases. The staged laparoscopic approach was chosen based on kidney size and on the presence or not of tomographic findings showing significant perirenal infiltration. Thus, retroperitoneal access was chosen in cases where the kidney was smaller than 12 cm or in the absence of signs of significant perirenal infiltration on the computerized tomography. For the remainder, transperitoneal access was employed. RESULTS: Of the 17 patients, 11 underwent laparoscopic nephrectomy by retroperitoneal access, and all cases were successful. Mean surgical time was 160 minutes. In 6 cases where the nephrectomy was performed by laparoscopic transperitoneal access, the use of hand assistance was required. Four surgeries were successfully completed with mean time of 190 minutes and 2 were converted to open surgery with mean time of 220 minutes. CONCLUSION: The laparoscopic nephrectomy for inflammatory renal disease is feasible, but presents a high degree of complexity, requiring a customized approach. The use of hand assistance is an attractive option when the inflammatory process is intense, and can avoid conversions, maintaining the advantages of minimally invasive treatments.
Asunto(s)
Laparoscopía/métodos , Nefrectomía/métodos , Pielonefritis/cirugía , Adulto , Anciano , Estudios de Seguimiento , Humanos , Riñón/patología , Riñón/cirugía , Persona de Mediana Edad , Cavidad Peritoneal/cirugía , Estudios Prospectivos , Literatura de Revisión como Asunto , Tomografía Computarizada por Rayos X , Resultado del TratamientoRESUMEN
INTRODUCTION: We describe our experience with hand-assisted laparoscopy (HAL) as an option for the treatment of large renal specimens. MATERIALS AND METHODS: Between March 2000 and August 2004, 13 patients candidate to nephrectomies due to benign renal conditions with kidneys larger than 20 cm were included in a prospective protocol. Unilateral nephrectomy was performed in cases of hydronephrosis (6 patients) or giant pyonephrosis (4 patients). Bilateral nephrectomy was performed in 3 patients with adult polycystic kidney disease (APKD) with low back pain refractory to clinical treatment previous to kidney transplant. The technique included the introduction of 2 to 3 10 mm ports, manual incision to allow enough space for the surgeon's wrist without a commercial device to keep the pneumoperitoneum. The kidney was empty, preferably extracorporeally, enough to be removed through manual incision. We have assessed operative times, transfusions, complications, conversions, hospital stay and convalescence. RESULTS: The patients mean age (9 women and 4 men) was 58 years. Mean operating time was 120 +/- 10 min (hydronephrosis), 160 +/- 28 min (pyonephrosis) and 190 +/- 13 min (bilateral surgery for APKD). There was a need for a conversion in 1 case and another patient needed a transfusion due to a lesion in the renal vein; 2 patients had minor complications. CONCLUSIONS: HAL surgery is a minimally invasive alternative in the treatment of large renal specimens, with or without significant inflammation.
Asunto(s)
Hidronefrosis/cirugía , Laparoscopía/métodos , Nefrectomía/métodos , Enfermedades Renales Poliquísticas/cirugía , Pielonefritis/cirugía , Femenino , Estudios de Seguimiento , Humanos , Masculino , Estudios Prospectivos , Tomografía Computarizada por Rayos X , Resultado del TratamientoRESUMEN
OBJECTIVE: To present results obtained with laparoscopic correction of incisional lumbar hernia in patients with minimum follow-up of 1 year. MATERIALS AND METHODS: We prospectively studied 7 patients diagnosed with incisional lumbar hernia after physical examination and computerized tomography. We used laparoscopic transperitoneal access through 3 ports. One polypropylene mesh was introduced in the abdominal cavity and fixed by titanium clamps to the margins of the hernia ring following release of the peritoneum. RESULTS: All cases were successfully completed with no conversion required. Mean surgical time was 120 minutes and discharge from hospital occurred between the 1st and the 2nd postoperative days. There were no intraoperative complications or hernia recurrence in any case. Postoperatively, we had 2 minor complications: one case of seroma that resolved spontaneously after 60 days and one patient presenting lumbar pain that persisted until the 3rd postoperative month. The return to usual activities occurred on average 3 weeks following intervention. Of the 7 patients, 6 were satisfied with the esthetical and functional effect produced by the procedure. CONCLUSIONS: The surgical correction of incisional lumbar hernia by laparoscopic access is an excellent option for a minimally invasive treatment, with adequate long-term results.
Asunto(s)
Hernia Abdominal/cirugía , Laparoscopía/métodos , Polipropilenos/uso terapéutico , Complicaciones Posoperatorias/cirugía , Mallas Quirúrgicas , Adulto , Anciano , Femenino , Estudios de Seguimiento , Hernia Abdominal/diagnóstico por imagen , Humanos , Región Lumbosacra , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Tomografía Computarizada por Rayos X , Resultado del TratamientoRESUMEN
OBJECTIVE: To describe surgical and functional results with extraperitoneal laparoscopic radical prostatectomy with duplication of the open technique, from the experience obtained in the treatment of 28 initial cases. MATERIALS AND METHODS: In a 36-month period, we prospectively analyzed 28 patients diagnosed with localized prostate cancer undergoing extraperitoneal laparoscopic radical prostatectomy. RESULTS: Mean surgical time was 280 min, with mean blood loss of 320 mL. As intraoperative complications, there were 2 rectal lesions repaired with laparoscopic suture in 2 planes. There was no conversion to open surgery. Median hospital stay was 3 days, with return to oral diet in the first post-operative day in patients. As post-operative complications, there were 3 cases of extraperitoneal urinary fistula. Two of these cases were resolved by maintaining a Foley catheter for 21 days, and the other one by late endoscopic reintervention for repositioning the catheter. Five out of 18 previously potent patients evolved with erectile dysfunction. The diagnosis of prostate cancer was confirmed in all patients, with focal positive margin occurring in 3 cases. During a mean follow-up of 18 months, 2 patients presented increased PSA, with no clinical evidence of disease. CONCLUSION: Laparoscopic radical prostatectomy is a laborious and difficult procedure, with a long learning curve. Extraperitoneal access is feasible, and it is possible to practically duplicate the principles of open surgery. The present technique can possibly offer advantages in terms of decreased blood loss, preservation of erectile function and prevention of positive margins.
Asunto(s)
Adenocarcinoma/cirugía , Endoscopía/métodos , Prostatectomía/métodos , Neoplasias de la Próstata/cirugía , Anciano , Disfunción Eréctil/etiología , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Resultado del Tratamiento , Incontinencia Urinaria/etiologíaRESUMEN
OBJECTIVE: The present study aims to report the preliminary experience with videolaparoscopic retroperitoneal lymphadenectomy in the treatment of patients with non-seminomatous testicular tumor. MATERIALS AND METHODS: Seven surgeries were performed in order to access retroperitoneal lymph nodes in patients with non-seminomatous testicular cancer. We performed the videolaparoscopic retroperitoneal lymphadenectomy (LRL) technique in 5 patients with stage I disease and laparoscopic resection of residual mass (LRRM), following chemotherapy (ChT), in 2 patients with stage II disease. Initial approach was obtained through 4 trocars, using an incision in supra-umbilical midline when manual assistance was required. Surgical time was analyzed, as well as blood loss, need for analgesic drugs postoperatively, hospital stay, complications, need for blood transfusion, histopathological data and tumor control in a mean follow-up of 18 months. RESULTS: Mean surgical time was 200 to 260 minutes in LRL and LRRM groups respectively, mean blood loss was 300 mL for the LRL group and 400 mL for the LRRM group, without need for transfusions. There was a lesion in the vena cava in the LRL group, which was managed with manual assistance and one conversion in the LRRM group, due to a 10-cm tumor mass that was adhered to the aorta. Mean hospital stay was 3 days, excluding the converted case, and the use of analgesic drugs was needed until the second postoperative day. Of the stage I patients, 2 had active disease in retroperitoneum, and underwent adjuvant ChT. The 2 residual masses were teratomas. There was no recurrence during the follow-up period. CONCLUSIONS: Videolaparoscopic retroperitoneal lymphadenectomy is a procedure with high technical complexity and a higher potential for conversion when performed following chemotherapy.
Asunto(s)
Germinoma/cirugía , Laparoscopía , Escisión del Ganglio Linfático/métodos , Neoplasias Testiculares/cirugía , Adulto , Estudios de Seguimiento , Germinoma/secundario , Humanos , Laparoscopía/métodos , Metástasis Linfática , Masculino , Espacio Retroperitoneal , Neoplasias Testiculares/patología , Grabación en VideoRESUMEN
Laparoscopic surgery in urology is definitely incorporated to the techniques of minimally invasive treatment for urogenital diseases. Though the classic access to organs in the urinary tract is extraperitoneal, this access has not been prioritized when the videoendoscopic technique is used. In Brazil, few groups use this approach and little has been discussed about its true practical applicability. The authors intended to discuss the main technical aspects and criteria for indication, reported though the improvement achieved in a 5-year period with 150 operated cases. A review of the literature shows that the worldly acceptance of the extraperitoneal endoscopic approach is increasing. Nevertheless, there are no evidences that the extraperitoneal access is superior to the transperitoneal route. Thus, the choice depends basically on the surgeon's preference. Major advantages are the immediate access to the renal hilum and isolation of peritoneal structures. Employing this access is useful when one suspects that significant peritoneal adherences could prevent the surgical act or when one wishes to preserve the integrity of the peritoneal cavity.
RESUMEN
INTRODUCTION: The laparoscopic radical prostatectomy is a continually developing technique. Transperitoneal access has been preferred by the majority of centers that employ this technique. Endoscopic extraperitoneal access is used by a few groups, nevertheless it is currently receiving a higher acceptance. In general, the antegrade technique is used, with dissection from the bladder neck to the prostate apex. The objective of the present paper is to describe the extraperitoneal technique with reproduction of the open surgery's surgical steps. SURGICAL TECHNIQUE: With this technique, the dissection of the prostate apex is performed and, following the section of the urethra while preserving the sphincteric apparatus, the Foley catheter is externally tied and internally recovered, which allows cranial traction, similarly to the way it is performed in conventional surgery. The retroprostatic space is posteriorly dissected and the seminal vesicles are identified by anterior and posterior approach, obtaining with this method an optimal exposure of the posterolateral pedicles and the prostate contour. The initial impression is that this technique does not present higher bleeding rate or difficulty level when compared with antegrade surgery. Potential advantages of this technique would be the greater familiarity with surgical steps, isolated extraperitoneal drainage of urine and secretions and a good definition of prostate limits and lateral pedicles, which are critical factors for preserving the neurovascular bundles and avoiding positive surgical margins. A higher number of cases and a long-term follow-up will demonstrate its actual value as a technical option for endoscopic access to the prostate.
Asunto(s)
Laparoscopía , Prostatectomía/métodos , Humanos , Masculino , PeritoneoRESUMEN
OBJECTIVES: Describe and illustrate a new minimally invasive approach for the radical resection of inguinal lymph nodes. SURGICAL TECHNIQUE: From the experience acquired in 7 operated cases, the video endoscopic inguinal lymphadenectomy (VEIL) technique was standardized in the following surgical steps: 1) Positioning of the inferior member extended in abduction, 2) Introduction of 3 work ports distal to the femoral triangle, 3) Expansion of the working space with gas, 4) Retrograde separation of the skin flap with a harmonic scalpel, 5) Identification and dissection of the long saphenous vein until the oval fossa, 6) Identification of the femoral artery, 7) Distal ligature of the lymph node block at the femoral triangle vertex, 8) Liberation of the lymph node tissue up to the great vessels above the femoral floor, 9) Distal ligature of the long saphenous vein, 10) Control of the saphenofemoral junction, 11) Final liberation of the surgical specimen and endoscopic view showing that all the tissue of the region was resected, 12) Removal of the surgical specimen through the initial orifice, 13) Vacuum drainage and synthesis of the incisions. COMMENTS: The VEIL technique is feasible and allows the radical removal of inguinal lymph nodes in the same limits of conventional surgery dissection. The main anatomic repairs of open surgery can be identified by the endoscopic view, confirming the complete removal of the lymphatic tissue within the pre-established limits. Preliminary results suggest that this technique can potentially reduce surgical morbidity. Oncologic follow-up is yet premature to demonstrate equivalence on the oncologic point of view.
Asunto(s)
Humanos , Masculino , Conducto Inguinal/cirugía , Escisión del Ganglio Linfático/métodos , Cirugía Asistida por Video/métodos , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/cirugía , Metástasis Linfática , Estudios Prospectivos , Neoplasias del Pene/patología , Neoplasias del Pene/cirugía , Resultado del TratamientoRESUMEN
INTRODUCTION: We describe our experience with hand-assisted laparoscopy (HAL) as an option for the treatment of large renal specimens. MATERIALS AND METHODS: Between March 2000 and August 2004, 13 patients candidate to nephrectomies due to benign renal conditions with kidneys larger than 20 cm were included in a prospective protocol. Unilateral nephrectomy was performed in cases of hydronephrosis (6 patients) or giant pyonephrosis (4 patients). Bilateral nephrectomy was performed in 3 patients with adult polycystic kidney disease (APKD) with low back pain refractory to clinical treatment previous to kidney transplant. The technique included the introduction of 2 to 3 10 mm ports, manual incision to allow enough space for the surgeon's wrist without a commercial device to keep the pneumoperitoneum. The kidney was empty, preferably extracorporeally, enough to be removed through manual incision. We have assessed operative times, transfusions, complications, conversions, hospital stay and convalescence. RESULTS: The patients mean age (9 women and 4 men) was 58 years. Mean operating time was 120 n 10 min (hydronephrosis), 160 n 28 min (pyonephrosis) and 190 n 13 min (bilateral surgery for APKD). There was a need for a conversion in 1 case and another patient needed a transfusion due to a lesion in the renal vein; 2 patients had minor complications. CONCLUSION: HAL surgery is a minimally invasive alternative in the treatment of large renal specimens, with or without significant inflammation.
Asunto(s)
Humanos , Masculino , Femenino , Hidronefrosis/cirugía , Laparoscopía/métodos , Nefrectomía/métodos , Enfermedades Renales Poliquísticas/cirugía , Pielonefritis/cirugía , Estudios de Seguimiento , Estudios Prospectivos , Tomografía Computarizada por Rayos X , Resultado del TratamientoRESUMEN
OBJECTIVE: To present results obtained with laparoscopic correction of incisional lumbar hernia in patients with minimum follow-up of 1 year. MATERIALS AND METHODS: We prospectively studied 7 patients diagnosed with incisional lumbar hernia after physical examination and computerized tomography. We used laparoscopic transperitoneal access through 3 ports. One polypropylene mesh was introduced in the abdominal cavity and fixed by titanium clamps to the margins of the hernia ring following release of the peritoneum. RESULTS: All cases were successfully completed with no conversion required. Mean surgical time was 120 minutes and discharge from hospital occurred between the 1st and the 2nd postoperative days. There were no intraoperative complications or hernia recurrence in any case. Postoperatively, we had 2 minor complications: one case of seroma that resolved spontaneously after 60 days and one patient presenting lumbar pain that persisted until the 3rd postoperative month. The return to usual activities occurred on average 3 weeks following intervention. Of the 7 patients, 6 were satisfied with the esthetical and functional effect produced by the procedure. CONCLUSIONS: The surgical correction of incisional lumbar hernia by laparoscopic access is an excellent option for a minimally invasive treatment, with adequate long-term results.
Asunto(s)
Adulto , Persona de Mediana Edad , Humanos , Masculino , Femenino , Hernia Abdominal/cirugía , Laparoscopía/métodos , Polipropilenos/uso terapéutico , Mallas Quirúrgicas , Estudios de Seguimiento , Hernia Abdominal , Región Lumbosacra/cirugía , Estudios Prospectivos , Tomografía Computarizada por Rayos X , Resultado del TratamientoRESUMEN
INTRODUCTION: The present study shows and discusses the preliminary experience of customized and staged approach in the minimally invasive treatment of inflammatory renal diseases, using either pure laparoscopic surgery or the hand-assisted technique. MATERIALS AND METHODS: We prospectively assessed 17 patients with inflammatory renal diseases operated by laparoscopic approach. Mean age was 41 years and the surgical indication was repeated pyelonephritis in 8 cases, pyonephrosis in 4 cases and renal exclusion due to staghorn stone in 5 cases. The staged laparoscopic approach was chosen based on kidney size and on the presence or not of tomographic findings showing significant perirenal infiltration. Thus, retroperitoneal access was chosen in cases where the kidney was smaller than 12 cm or in the absence of signs of significant perirenal infiltration on the computerized tomography. For the remainder, transperitoneal access was employed. RESULTS: Of the 17 patients, 11 underwent laparoscopic nephrectomy by retroperitoneal access, and all cases were successful. Mean surgical time was 160 minutes. In 6 cases where the nephrectomy was performed by laparoscopic transperitoneal access, the use of hand assistance was required. Four surgeries were successfully completed with mean time of 190 minutes and 2 were converted to open surgery with mean time of 220 minutes. CONCLUSION: The laparoscopic nephrectomy for inflammatory renal disease is feasible, but presents a high degree of complexity, requiring a customized approach. The use of hand assistance is an attractive option when the inflammatory process is intense, and can avoid conversions, maintaining the advantages of minimally invasive treatments.
Asunto(s)
Adulto , Anciano , Humanos , Persona de Mediana Edad , Laparoscopía/métodos , Nefrectomía/métodos , Pielonefritis/cirugía , Estudios de Seguimiento , Riñón/patología , Riñón/cirugía , Estudios Prospectivos , Cavidad Peritoneal/cirugía , Literatura de Revisión como Asunto , Tomografía Computarizada por Rayos X , Resultado del TratamientoRESUMEN
OBJECTIVE: To describe surgical and functional results with extraperitoneal laparoscopic radical prostatectomy with duplication of the open technique, from the experience obtained in the treatment of 28 initial cases. MATERIALS AND METHODS: In a 36-month period, we prospectively analyzed 28 patients diagnosed with localized prostate cancer undergoing extraperitoneal laparoscopic radical prostatectomy. RESULTS: Mean surgical time was 280 min, with mean blood loss of 320 mL. As intraoperative complications, there were 2 rectal lesions repaired with laparoscopic suture in 2 planes. There was no conversion to open surgery. Median hospital stay was 3 days, with return to oral diet in the first post-operative day in patients. As post-operative complications, there were 3 cases of extraperitoneal urinary fistula. Two of these cases were resolved by maintaining a Foley catheter for 21 days, and the other one by late endoscopic reintervention for repositioning the catheter. Five out of 18 previously potent patients evolved with erectile dysfunction. The diagnosis of prostate cancer was confirmed in all patients, with focal positive margin occurring in 3 cases. During a mean follow-up of 18 months, 2 patients presented increased PSA, with no clinical evidence of disease. CONCLUSION: Laparoscopic radical prostatectomy is a laborious and difficult procedure, with a long learning curve. Extraperitoneal access is feasible, and it is possible to practically duplicate the principles of open surgery. The present technique can possibly offer advantages in terms of decreased blood loss, preservation of erectile function and prevention of positive margins.
Asunto(s)
Anciano , Humanos , Masculino , Persona de Mediana Edad , Adenocarcinoma/cirugía , Endoscopía/métodos , Prostatectomía/métodos , Neoplasias de la Próstata/cirugía , Disfunción Eréctil/etiología , Estudios de Seguimiento , Estudios Prospectivos , Resultado del Tratamiento , Incontinencia Urinaria/etiologíaRESUMEN
INTRODUCTION: The laparoscopic radical prostatectomy is a continually developing technique. Transperitoneal access has been preferred by the majority of centers that employ this technique. Endoscopic extraperitoneal access is used by a few groups, nevertheless it is currently receiving a higher acceptance. In general, the antegrade technique is used, with dissection from the bladder neck to the prostate apex. The objective of the present paper is to describe the extraperitoneal technique with reproduction of the open surgery's surgical steps. SURGICAL TECHNIQUE: With this technique, the dissection of the prostate apex is performed and, following the section of the urethra while preserving the sphincteric apparatus, the Foley catheter is externally tied and internally recovered, which allows cranial traction, similarly to the way it is performed in conventional surgery. The retroprostatic space is posteriorly dissected and the seminal vesicles are identified by anterior and posterior approach, obtaining with this method an optimal exposure of the posterolateral pedicles and the prostate contour. The initial impression is that this technique does not present higher bleeding rate or difficulty level when compared with antegrade surgery. Potential advantages of this technique would be the greater familiarity with surgical steps, isolated extraperitoneal drainage of urine and secretions and a good definition of prostate limits and lateral pedicles, which are critical factors for preserving the neurovascular bundles and avoiding positive surgical margins. A higher number of cases and a long-term follow-up will demonstrate its actual value as a technical option for endoscopic access to the prostate.
Asunto(s)
Humanos , Masculino , Laparoscopía , Prostatectomía/métodos , PeritoneoRESUMEN
Laparoscopic surgery in urology is definitely incorporated to the techniques of minimally invasive treatment for urogenital diseases. Though the classic access to organs in the urinary tract is extraperitoneal, this access has not been prioritized when the videoendoscopic technique is used. In Brazil, few groups use this approach and little has been discussed about its true practical applicability. The authors intended to discuss the main technical aspects and criteria for indication, reported though the improvement achieved in a 5-year period with 150 operated cases. A review of the literature shows that the worldly acceptance of the extraperitoneal endoscopic approach is increasing. Nevertheless, there are no evidences that the extraperitoneal access is superior to the transperitoneal route. Thus, the choice depends basically on the surgeon's preference. Major advantages are the immediate access to the renal hilum and isolation of peritoneal structures. Employing this access is useful when one suspects that significant peritoneal adherences could prevent the surgical act or when one wishes to preserve the integrity of the peritoneal cavity.
RESUMEN
OBJECTIVE: The present study aims to report the preliminary experience with videolaparoscopic retroperitoneal lymphadenectomy in the treatment of patients with non-siinomatous testicular tumor. MATERIALS AND METHODS: Seven surgeries were performed in order to access retroperitoneal lymph nodes in patients with non-siinomatous testicular cancer. We performed the videolaparoscopic retroperitoneal lymphadenectomy (LRL) technique in 5 patients with stage I disease and laparoscopic resection of residual mass (LRRM), following chiotherapy (ChT), in 2 patients with stage II disease. Initial approach was obtained through 4 trocars, using an incision in supra-umbilical midline when manual assistance was required. Surgical time was analyzed, as well as blood loss, need for analgesic drugs postoperatively, hospital stay, complications, need for blood transfusion, histopathological data and tumor control in a mean follow-up of 18 months. RESULTS: Mean surgical time was 200 to 260 minutes in LRL and LRRM groups respectively, mean blood loss was 300 mL for the LRL group and 400 mL for the LRRM group, without need for transfusions. There was a lesion in the vena cava in the LRL group, which was managed with manual assistance and one conversion in the LRRM group, due to a 10-cm tumor mass that was adhered to the aorta. Mean hospital stay was 3 days, excluding the converted case, and the use of analgesic drugs was needed until the second postoperative day. Of the stage I patients, 2 had active disease in retroperitoneum, and underwent adjuvant ChT. The 2 residual masses were teratomas. There was no recurrence during the follow-up period. CONCLUSIONS: Videolaparoscopic retroperitoneal lymphadenectomy is a procedure with high technical complexity and a higher potential for conversion when performed following chiotherapy.
Asunto(s)
Adulto , Humanos , Masculino , Germinoma/cirugía , Laparoscopía , Escisión del Ganglio Linfático/métodos , Neoplasias Testiculares/cirugía , Estudios de Seguimiento , Germinoma/secundario , Metástasis Linfática , Laparoscopía/métodos , Espacio Retroperitoneal , Neoplasias Testiculares/patología , Grabación en VideoRESUMEN
Objetivo: Mostrar as vantagens e dificuldades no acesso ao retroperitônio para realização de biopsia renal laparoscópica. Material e métodos: Foram analisados 30 pacientes que não tinham indicação para a realização de biópsia pela via percutânea (coagulopatia,alteração anatômica e falha no procedimento percutâneo), submetidos a biópsia renal pela via laparoscópica. O acesso foi realizado através de incisão na extremidade da 12a. costela e dissecção da musculatura até o retroperitônio. Após este procedimento, o balão de Gaur modificado era locado no retroperitônio e insuflado com 500 a 800 ml de soro fisiológico. A biopsia era realizada com 1 ou 2 portais adicionais de 5mm. Resultado: As dificuldades encontradas na retroperitoneoscopia foi o pequeno espaço de trabalho, algumas vezes com dificuldade de manipulação dos instrumentos laparoscópicos. Ocorreu conversão em apenas um paciente, devido a problemas de visualização do rim. Observou-se a ruptura do balão em 2 casos, sem lesões adicionais. Perfuração no peritônio ocorreu em 3 casos, sem necessidade de conversão. O tempo médio do procedimento foi de 40 minutos. Conclusão: A retroperitoneoscopia para biópsia renal é um procedimento com baixo índice de complicações. As vantagens são o fácil acesso ao rim e a retirada adequada de material para análise. A principal desvantagem é o pequeno espaço de trabalho.