Biomedical subjects

A Mahajna

Publications and source records attributed to A Mahajna.

10 recordsLinked to original sources

PubMed2006

Is mechanical bowel preparation mandatory for left-sided colonic anastomosis? Results of a prospective randomized trial.

BACKGROUND: Preoperative mechanical bowel preparation is aimed to reduce the risk of infectious complications, and its utility is a dogma in left-sided large bowel anastomosis. The aim of this study was to specifically assess whether colocolonic and colorectal anastomoses may be safely performed without preoperative mechanical bowel preparation. METHODS: Patients undergoing elective colon and rectal surgery with primary colocolonic or colorectal anastomosis were prospectively randomized into two groups. The "prep" group had mechanical bowel preparation prior to surgery, while the "non-prep" group had surgery without pre-operative mechanical bowel preparation. RESULTS: Two hundred forty-nine patients were included in the study, 120 in the prep group and 129 in the nonprep group. Demographic characteristics, indications for surgery, and type of surgical procedure did not significantly differ between the two groups. There was no difference in the rate of surgical infectious complications between the two groups. Overall infectious complication rate was 12.5% in the prep group and 13.2% in the non-prep group. Wound infection, anastomotic leak, and intra-abdominal abscess occurred in 6.6%, 4.2%, and 1.6% of patients in the prep group and in 10.0%, 2.3%, and 0.7% of patients in the nonprep group, respectively (p=NS). CONCLUSIONS: These results suggest that elective left-sided anastomosis may be safely performed without mechanical preparation. Multicenter studies to test the reproducibility of these results are required, to support a change in this time-honored practice.

Adult↗

PubMed2006

Laparoscopic pancreaticoduodenectomy for benign and malignant diseases.

BACKGROUND: Laparoscopy still is not universally accepted as an alternative approach for pancreatoduodenectomy. This study aimed to assess the feasibility and safety of laparoscopic pancreatoduodenectomy for benign and malignant lesions of the pancreas, and to examine whether this procedure obtains adequate margins and follows oncologic principles. To the best of the authors' knowledge, their series of laparoscopic pancreatoduodenectomies is the largest reported to date. METHODS: A prospective study of laparoscopic pancreatoduodenectomy was undertaken between March 1999 and June 2005. The study enrolled 25 patients (16 women and 9 men) with a mean age of 62 +/- 14 years. All the operations were performed in a single institution. RESULTS: The operations were performed without serious complications. Three patients underwent conversion to open surgery. For 13 patients, the anastomosis was performed intracorporeally. For the remaining 9 patients, the resection was performed laparoscopically, with the reconstruction performed through a small midline incision. There was no intraoperative mortality. The mean operating time was 287 +/- 39 min, and the mean blood loss was 107 +/- 48 ml. The mean time to the first bowel movement was 6 +/- 1.5 days, and the mean time to independent self-care was 4.8 +/- 0.8 days. Seven patients experienced postoperative complications. One patient died of a cardiac event 3 days after uncomplicated surgery. The mean hospital stay was 16.2 +/- 2.7 days. All resected margins were tumor free. The mean number of retrieved lymph nodes for the malignant lesions was 18 +/- 5. CONCLUSION: Laparoscopic pancreatoduodenectomy for selected cases of benign and malignant lesions performed by highly skilled laparoscopic surgeons is feasible and safe. This method can obtain adequate margins and follow oncological principles. Larger series and longer follow-up periods are needed to establish the current results.

Female↗

PubMed2006

Laparoscopic repair of postoperative perineal hernia.

BACKGROUND: Perineal hernia is an uncommon complication following abdominoperineal resection of the rectum. There are only a few reports concerning the management of this unusual problem. Various methods of repair have been described, but none of them is well established. The purpose of our study is to present our experience and to discuss the pathogenesis and the different surgical repair techniques of these hernias. METHODS: Between September 2003 and December 2004, four patients with perineal hernia observed several months following laparoscopic abdominoperineal resection for adenocarcinoma of the lower rectum were treated. All patients underwent the transabdominal laparoscopic approach using synthetic mesh for repair. RESULTS: In all patients, the hernia was repaired by the laparoscopic transabdominal approach using synthetic mesh. The blood loss was minimal and mean operating time was 54 +/- 10 min. There were no cases that required conversion to laparotomy and there were no intraoperative or postoperative complications. Beginning of soft diet intake and ambulation times were on the second day following surgery. The average length of hospital stay was 4 +/- 1 days. During 8.3 +/- 6 months of follow-up, there was no recurrence of the hernia. CONCLUSION: Perineal hernias are rare complications of major pelvic surgeries. Symptomatic hernias should be repaired surgically. The transabdominal laparoscopic approach using synthetic mesh provides an appropriate solution for these hernias.

Adenocarcinoma↗

PubMed2006

Totally extraperitoneal (TEP) hernia repair after radical prostatectomy or previous lower abdominal surgery: is it safe? A prospective study.

BACKGROUND: Many practicing surgeons claim that hernias after previous lower abdominal surgery should be treated by transabdominal preperitoneal repair (TAPP). Moreover, previous radical prostatectomy contraindicates the laparoscopic approach for hernia repair. This prospective study was designed to examine the feasibility and to evaluate the surgical outcome of laparoscopic totally extraperitoneal (TEP) hernia repair in patients who had undergone previous lower abdominal surgery or radical prostatectomy, and to compare this group to all patients who underwent laparoscopic TEP without previous surgery during the study period. METHODS: Patients undergoing elective inguinal hernia repair, by one staff surgeon, in the Department of Abdominal Surgery at the Institute of Laparoscopic Surgery (ILS, Bordeaux) between September 2003 and December 2004 were prospectively enrolled to this study. Three groups were defined--patients with previous radical prostatectomy, patients with previous lower abdominal surgery, and patients without previous surgery--and their data were analyzed and compared. RESULTS: A total of 256 laparoscopic inguinal hernia repairs were performed in 202 patients. Of these, 148 patients had unilateral hernia (143 right and 113 left) and 54 patients had bilateral hernias. There were 166 male patients and 36 female patients with a mean age of 61 +/- 16 years. Of these, 10 patients had inguinal hernia after prostatectomy and 15 patients had inguinal hernia after previous lower abdominal surgery. The mean operative time was significantly longer in the patients with previous prostatectomy than in the two other groups. Two patients after prostatectomy were converted to TAPP due to surgical difficulties. There were no major intraoperative complications in all patients except for three cases of bleeding arising from the inferior epigastric artery: two in the postprostatectomy group and one in a patient without previous surgery. Both ambulation and hospital stay were similar for all groups. Only one patient without previous surgery had postoperative bleeding and was reoperated on several hours after the hernia repair. During the follow-up period of 8 +/- 4 months, there was no recurrence of the hernia in any group. CONCLUSIONS: Laparoscopic TEP for inguinal hernia repair in patients after previous low abdominal surgery has good results, similar to those in patients without previous surgery. Despite a longer operative time, TEP repairs can be performed efficiently and safely in patients after prostatectomy by skilled and experienced laparoscopic surgeons.

Aged↗

PubMed2005

Are major laparoscopic pancreatic resections worthwhile? A prospective study of 32 patients in a single institution.

BACKGROUND: Laparoscopic surgery has been used increasingly as a less invasive alternative to conventional open surgery. Recently, laparoscopic therapy for pancreatic diseases has made significant strides. The current investigation studied pancreatic resection by laparoscopy. The objective of this study was to assess the feasibility, safety, and outcome of laparoscopic pancreatic major resection for benign and malignant lesions of the pancreas. METHODS: A prospective study of laparoscopic pancreatic resections was undertaken in patients with benign and malignant lesions of the pancreas. Over an 8-year period, 32 patients underwent laparoscopic pancreatic major resection: 21 left pancreatectomies (1 performed using a retroperitoneal approach), and 11 pancreatoduodenectomies (10 Whipple procedures and 1 total pancreatectomy). All the operations were performed in a single institution. RESULTS: The operations were performed without serious complications. Only one left pancreatectomy was converted to laparotomy because of massive splenic bleeding, and one Whipple procedure was converted because of adhesion to the portal vein. In four of the Whipple operations, the resection was performed completely laparoscopically, and the reconstruction was done via a small midline incision. There was no operative mortality. In 16 patients of the left pancreatectomy group, the spleen was preserved. The mean blood loss was 150 and 162 ml; and the mean operating time was 154 and 284 min, respectively, for the left pancreatectomy and the Whipple procedure. Postoperative complications occurred for five patients after left pancreatectomy and for three patients after the Whipple procedure. Two patients needed surgical reexploration after left pancreatectomy because of intraperitoneal haemorrhage and eventration of the extraction site. Two patients underwent reoperation after the Whipple procedure: one because of intraabdominal bleeding and the other because of small bowel obstruction. The mean hospital stay was 10.8 days after left the pancreatectomy and 13.6 days after the whipple procedure. CONCLUSION: Laparoscopic left pancreatectomy for benign and malignant lesions is feasible, safe, and beneficial. We believe that pancreatoduodenectomy should be performed only in selected cases and by a highly skilled laparoscopic surgeon. If there is any doubt, an open resection should be performed.

Adult↗

PubMed2005

Laparoscopic and open gastric resections for malignant lesions: a prospective comparative study.

BACKGROUND: Whereas laparoscopy for benign diseases provides clear advantages over traditional surgery, the benefits of laparoscopic gastric resection for malignant diseases are less clear. The objectives of this study were to compare prospectively the clinical outcomes between completely laparoscopic and open total and partial gastrectomies for malignant diseases and to assess whether laparoscopic gastrectomies obtain adequate margins and follow oncologic principles. METHODS: Between April 1995 and March 2004, a prospective comparative study was performed comparing eight patients who underwent laparoscopic total gastrectomy with 11 patients who underwent open total gastrectomy, and 16 patients who underwent laparoscopic partial gastrectomy with 17 who patients underwent open partial gastrectomy. Stage, extent of lymphadenectomy, and long-term follow-up were examined. The intraoperative and postoperative details of the two groups were compared. RESULTS: The laparoscopic group patients had fewer intraoperative complications while the operative time was similar to that of the open group. Both ambulation and hospital stay were significantly shorter in the laparoscopic groups than in the open groups. The short-term morbidity was lower in the laparoscopic groups and there were no cases of death, whereas one case of postoperative death occurred after an open total gastrectomy. There was no need to convert to open surgery. The number of lymph nodes obtained in the laparoscopic and open procedures was not significantly different. In addition, all resected margins were tumor free in the laparoscopic group, whereas tumor involvement was presented in the margin of one specimen in the open group. CONCLUSIONS: The totally laparoscopic approach to total and partial gastrectomies had good results and was proven to be a feasible and safe procedure. In addition, the laparoscopic procedures are superior to open surgeries in terms of faster postoperative recovery, shorter hospital stay, and better cosmetic outcomes. A totally laparoscopic approach for early and advanced gastric cancer can obtain adequate margins and follow oncologic principles.

Adenocarcinoma↗

PubMed2005

Laparoscopic liver resections: a single center experience.

BACKGROUND: Since the first report of laparoscopic liver resection, by Gagner et al. 1992, an increasing number of small prospective studies have been published. They have shown encouraging results for the feasibility and safety of the procedure. This paper prospectively evaluated the results of a single center's experience with elective liver resections. METHODS: From January 1995 to January 2004 a prospective study of laparoscopic liver resections was undertaken in 31 patients with preoperative diagnosis of benign lesions (13 cases, 42.4%), hepatocellular carcinoma in absence of complicated cirrhosis (three cases, 9.1%), and liver metastases (15 cases, 45.5%). Mean tumor size was 34.9 mm (range 10-100 mm). RESULTS: The procedures included 11 (37.9%) major hepatectomies and 21 (62.1%) minor resections (one patient was submitted to repeat laparoscopic liver resection) . There were three conversions to open. Mean blood loss was 210 ml (range 0-700 ml). Mean operative time was 115 min (range 45-210 min). There were no deaths and no reoperations for complications. No port-site metastases occurred in patients with malignant lesions. CONCLUSIONS: Laparoscopic liver resections, including major hepatectomies, are feasible and safe. Major and posterior resections are difficult, though, and conventional surgery remains an option.

Adult↗

PubMed2005

Laparoscopic rectal resection with anal sphincter preservation for rectal cancer: long-term outcome.

BACKGROUND: Total mesorectal excision (TME) is the surgical gold standard treatment for middle and low third rectal carcinoma. Laparoscopy has gradually become accepted for the treatment of colorectal malignancy after a long period of questions regarding its safety. The purposes of this study were to examine prospectively our experience with laparoscopic TME and high rectal resections, to evaluate the surgical outcomes and oncologic adequacy, and to discuss the role of this procedure in the treatment of rectal cancer. METHODS: Between December 1992 and December 2004, all patients who underwent elective laparoscopic sphincter preserving rectal resection for rectal cancer were enrolled prospectively in this study. Data collection included preoperative, operative, postoperative and oncologic results with long-term follow-up. RESULTS: A total of 218 patients were operated on during the study period: 142 patients underwent laparoscopic TME and 76 patients underwent anterior resection. Of the TME patients, 122 patients were operated using the double-stapling technique, and 20 patients underwent colo-anal anastomosis with hand-sewn sutures. Mean operative time was 138 min (range, 107-205), and mean blood loss was 120 ml (range, 30-350). Conversion to open surgery occurred in 26 cases (12%). Mortality rate during the first 30 days was 1%. Anastomotic leaks were observed in 10.5% of the patients. Of these, 61.9% needed reoperation and diverting stoma, and the rest were treated conservatively. Three patients had postoperative bleeding requiring relaparoscopy. Other minor complications (infection and urinary retention) occurred in 9.1% of patients. Mean ambulation time and mean hospital stay were 1.6 days (range, 1-5) and 6.4 days (range, 3-28) , respectively. Patients were followed for a mean period of 57 months. No port site metastases were observed during follow-up. The recurrence rate was 6.8 %. Overall survival rate was 67% after 5 years and 53.5% after 10 years. CONCLUSION: Laparoscopic anterior resection and TME with anal sphincter preservation for rectal cancer is feasible and safe. The short- and long-term outcomes reported in this series are comparable with those of conventional surgery.

Adult↗

PubMed2004

Diagnostic laparoscopy for penetrating injuries in the thoracoabdominal region.

BACKGROUND: The role of laparoscopy in diagnosis of penetrating abdominal injuries is still controversial. In the present investigation diagnostic laparoscopy was studied in penetrating injuries of the thoracoabdominal region. METHODS: Between March 1998 and June 2003, 43 patients with penetrating thoracoabdominal injuries underwent diagnostic laparoscopy at the Rambam Medical Center. There were 41 males and two females; the average age was 30 years (range, 16-54 years). Thirty-one patients had a lower chest injury, eight patients had an upper abdomen and flank injury, and four patients had combined chest and abdomen injuries. In 11 patients intraperitoneal penetration was diagnosed. In 10 patients the procedure was converted to open laparotomy, and one patient with a small laceration of the right diaphragm opposite the liver was observed without laparotomy. RESULTS: The average operating time for the laparoscopy was 25 min (10-45 min), and 85 min (40-175 min) for laparotomy. Patients who underwent laparoscopy were discharged after an average of 1.6 (1-3) days, while those who underwent laparotomy were discharged after an average of 7.6 (2-15) days. CONCLUSIONS: Laparoscopy is a useful diagnostic tool in penetrating injuries of the chest, thoracoabdominal region, and flank. This procedure is particularly reliable in diaphragmatic tears. Laparoscopy should be considered the procedure of choice for the evaluation of penetrating injuries of the lower chest and upper abdomen for diagnosis of peritoneal penetration.

Abdominal Injuries↗

PubMed2003

Traumatic abdominal hernia associated with large bowel strangulation: case report and review of the literature.

A rare case of traumatic rupture of the abdominal wall with ventral herniation and strangulation of the right colon is presented. The defect was detected by computed tomography on admission. The patient was operated on 3 days after injury, and irreversible ischaemia of the right colon was found. Right hemicolectomy was performed. The pathogenesis and treatment of this complication is discussed.

Accidents, Traffic↗