Laparoscopic antireflux surgery. What is real progress?

OBJECTIVE: The authors aim to substantiate, with objective arguments, potential advantages of laparoscopic versus open antireflux surgery in the light of the recent crude experience of the Louvain Medical School Hospital. METHODS: Seventy-two consecutive patients with disabling gastroesophageal reflux disease ([GERD], n = 56), symptomatic hiatal hernia without GERD (n = 5), or unsatisfactory outcome after unsuccessful antireflux procedure (n = 11) were operated on by laparotomy (n = 28), laparoscopy (n = 39), or thoracotomy (n = 5). The antireflux procedure was a subdiaphragmatic Nissen fundoplication (n = 60), an intrathoracic Nissen fundoplication (short esophagus, n = 3), a subdiaphragmatic 240 degrees fundoplication (severe motility disorders, n = 3), a Lortat-Jacob repair (hiatal hernia without GERD, n = 5), and a duodenal diversion (delayed gastric emptying, n = 1). RESULTS: Major postoperative morbidity included two pulmonary embolisms (one laparoscopy patient and one laparotomy patient), and one hemothorax (one thoracotomy patient). Mean hospital stay was 6.4 days for laparoscopy, 7.8 days for laparotomy, and 12.5 days for thoracotomy. Postoperative morphine consumption (patient-controlled analgesia) averaged 47 mg/48 hrs (laparoscopy) versus 46 mg/48 hrs (laparotomy with primary antireflux surgery) (p > 0.05). Although 93% of the laparoscopy patients returned to work within 3 weeks after surgery, 92% of the laparotomy and thoracotomy patients resumed their activity after more than 6 weeks. At follow-up, 87.5% of the patients were asymptomatic or had inconsequential symptoms, 9.8% had disabling side effects, and 2.7% had persistent or recurring esophageal symptoms. There were four parietal herniations, i.e., one incisional hernia and one recurrence of a repaired umbilical hernia in the laparotomy group, and two herniations of the wrap into the chest--probably related to a premature return to manual work--in the laparoscopy group. Three laparoscopy patients were dissatisfied with the esthetics of their scars. Lower esophageal sphincter pressure and esophageal acid exposure in the laparoscopy patients who were investigated were normal in 100% and 95%, respectively. CONCLUSIONS: Laparoscopy is a good approach for achieving successful antireflux surgery in selected cases. However, its fails to substantially reduce postoperative complication rate and discomfort, duration of the hospital stay, and the risk of esthetic sequela. Early return to work is questionable for manual workers. The subdiaphragmatic Nissen fundoplication is not an all-purpose antireflux procedure.     

Obesity in Diabetic Patients Undergoing Coronary Artery Bypass Graft Surgery Is Associated with Increased Postoperative Morbidity

Background: Despite the fact that obesity is a known risk factor for cardiovascular disease, many studies have failed to demonstrate that obesity is independently associated with an increased risk of cardiovascular morbidity and mortality in nondiabetic patients undergoing coronary artery bypass graft surgery. The authors investigated the influence of obesity on adverse postoperative outcomes in diabetic and nondiabetic patients after primary coronary artery bypass surgery.

Methods: A retrospective cohort study of patients undergoing primary coronary artery bypass surgery (n = 9,862) between January 1995 and December 2004 at the Texas Heart Institute was performed. Diabetic (n = 3,374) and nondiabetic patients (n = 6,488) were classified into five groups, according to their body mass index: normal weight (n = 2,148), overweight (n = 4,257), mild obesity (n = 2,298), moderate obesity (n = 785), or morbid obesity (n = 338). Multivariate, stepwise logistic regression was performed controlling for patient demographics, medical history, and preoperative medications to determine whether obesity was independently associated with an increased risk of adverse postoperative outcomes.

Results: Obesity in nondiabetic patients was not independently associated with an increased risk of adverse postoperative outcomes. In contrast, obesity in diabetic patients was independently associated with a significantly increased risk of postoperative respiratory failure (odds ratio [OR], 2.26; 95% confidence interval [CI], 1.41-3.61; P < 0.001), ventricular tachycardia (OR, 2.27; 95% CI, 1.18-4.35; P < 0.02), atrial fibrillation (OR, 1.56; 95% CI, 1.03-2.38; P < 0.04), atrial flutter (OR, 2.38; 95% CI, 1.29-4.40; P < 0.01), renal insufficiency (OR, 1.66; 95% CI, 1.10-3.41; P < 0.03), and leg wound infection (OR, 5.34; 95% CI, 2.27-12.54; P < 0.001). Obesity in diabetic patients was not independently associated with an increased risk of mortality, stroke, myocardial infarction, sepsis, or sternal wound infection.     

Continuous Preperitoneal Infusion of Ropivacaine Provides Effective Analgesia and Accelerates Recovery after Colorectal Surgery: A Randomized, Double-blind, Placebo-controlled Study

Background: Blockade of parietal nociceptive afferents by the use of continuous wound infiltration with local anesthetics may be beneficial in a multimodal approach to postoperative pain management after major surgery. The role of continuous preperitoneal infusion of ropivacaine for pain relief and postoperative recovery after open colorectal resections was evaluated in a randomized, double-blinded, placebo-controlled trial.

Methods: After obtaining written informed consents, a multiholed wound catheter was placed by the surgeon in the preperitoneal space at the end of surgery in patients scheduled to undergo elective open colorectal resection by midline incision. They were thereafter randomly assigned to receive through the catheter either 0.2% ropivacaine (10-ml bolus followed by an infusion of 10 ml/h during 48 h) or the same protocol with 0.9% NaCl. In addition, all patients received patient-controlled intravenous morphine analgesia.

Results: Twenty-one patients were evaluated in each group. Compared with preperitoneal saline, ropivacaine infusion reduced morphine consumption during the first 72 h and improved pain relief at rest during 12 h and while coughing during 48 h. Sleep quality was also better during the first two postoperative nights. Time to recovery of bowel function (74 +/- 19 vs. 105 +/- 54 h; P = 0.02) and duration of hospital stay (115 +/- 25 vs. 147 +/- 53 h; P = 0.02) were significantly reduced in the ropivacaine group. Ropivacaine plasma concentrations remained below the level of toxicity. No side effects were observed.     

Identification of Risk Factors for Postoperative Nausea and Vomiting in the Perianesthesia Adult Patient

Postoperative nausea and vomiting (PONV) is a common and potentially debilitating complication of surgery. The preoperative assessment of PONV using established risk assessment tools enables the identification of patients at risk and potentially decreases the incidence of PONV in adult surgical patients. The identification of risk factors associated with PONV and the factors that are independent predictors of PONV preoperatively can facilitate the effective prophylactic treatment and management of PONV in adult surgical patients.