Analgesia with continuous wound infusion of local anesthetic versus saline: Double-blind randomized, controlled trial in hepatectomy.

BACKGROUND: Surgical wound is source of pain in hepatectomy with laparotomy. Continuous wound infusion of ropivacaine may provide effective analgesia. METHODS: This prospective, randomized trial, patients scheduled for hepatectomy received a 48-h preperitoneal continuous wound infusion of either 0.23% ropivacaine or 0.9% saline at 5 ml/h. Primary endpoint was 48 h morphine consumption. RESULTS: 53 patients included in the ropivacaine group and 46 in the saline group. Morphine consumption was 24.63 mg in the ropivacaine group, and 26.78 mg (p = 0.669) in the saline group. Pain was comparable between groups and there were no differences in solid food intake, ambulation, or length of hospital stay. No local or systemic complications were recorded. CONCLUSIONS: Continuous wound infusion with ropivacaine is safe, but it neither reduced morphine consumption nor enhanced recovery in patients undergoing hepatectomy. Success of enhanced recovery in hepatectomy is not influenced by the analgesic regimen if pain is well controlled.

Incidencia de la infección de la herida quirúrgica en cirugía colorrectal electiva y su relación con factores perioperatorios / Incidence of surgical wound infection in elective colorectal surgery and its relationship with preoperative factors

Introducción La infección de la herida quirúrgica en cirugía colorrectal presenta una incidencia de hasta el 26%. En su desarrollo intervienen factores del propio enfermo y perioperatorios. La administración correcta del antibiótico, la normotermia y la hiperoxigenación representan una tríada de común aplicación. El objetivo fue valorar la incidencia de infección de la herida quirúrgica en pacientes sometidos a cirugía colorrectal a los que se aplicó un protocolo preventivo de infección quirúrgica; como segundo objetivo se relacionó la infección quirúrgica con factores perioperatorios. Material y métodos Se realizó un estudio observacional incluyendo a 100 pacientes de cirugía colorrectal electiva. Se recogieron datos demográficos, datos relacionados con el intraoperatorio y el postoperatorio. Se definió la infección de la herida quirúrgica según los criterios del Centers for Disease Control and Prevention Hospital Infection. Resultados La mediana de edad fue de 68 años (rango 25-88), el 65% eran hombres, el 59% eran ASA 3-4, el cumplimiento del protocolo se realizó en más del 80% en los distintos apartados y se realizó acceso laparoscópico en el 31%. La incidencia de la infección de la herida quirúrgica superficial y profunda fue del 25%. Los pacientes con infección presentaron una mayor prevalencia de diabetes (48 vs 24%), de transfusión (56 vs 28%), de íleo paralítico (48 vs 18,7%) y de absceso intraabdominal (16 vs 3%). El analisis multivariante relacionó la hemoglobina y la glucemia preoperatorias, y la duración de la cirugía con la infección incisional. Conclusiones El protocolo de prevención no influyó en la incidencia de infección de la herida quirúrgica (AU)

Introduction Surgical wound infection in colorectal surgery has incidence rate of up to 26%. Peri-operative factors and those of the patients themselves play a part in these infections. The correct administration of the antibiotic, a normal temperature, and hyperoxygenation are a commonly applied triad. The primary aim of the study was to evaluate the incidence of surgical wound infection in patients subjective to colorectal surgery where a surgical infection prevention protocol was applied. The second objective was the relationship between surgical infection and peri-operative factors. Material and methods An observational study was conducted on 100 patients who had undergone elective colorectal surgery. Demographic data and related surgical and post-surgical data were recorded. A surgical wound infection was defined using the criteria of Disease Control and Prevention Hospital Infection Centres Results The median age of the patients was 68 years (range 25-88), 65% were male, and 59% were ASA 3-4. There was more than 80% compliance to the protocol in its different sections. There was laparoscopic access in 31% of the cases. The incidence of superficial and deep surgical wound infection was 25%. The patients with an infection had a higher prevalence of diabetes (48% vs 24%), transfusion (56% vs 28%), paralytic ileum (48% vs 18.7%), and intra-abdominal abscess (16% vs 3%). The multivariate analysis associated, preoperative haemoglobin and blood glucose, and the duration of the surgery, with incisional infection (AU)

[Incidence of surgical wound infection in elective colorectal surgery and its relationship with preoperative factors]. / Incidencia de la infección de la herida quirúrgica en cirugía colorrectal electiva y su relación con factores perioperatorios.

INTRODUCTION: Surgical wound infection in colorectal surgery has incidence rate of up to 26%. Peri-operative factors and those of the patients themselves play a part in these infections. The correct administration of the antibiotic, a normal temperature, and hyperoxygenation are a commonly applied triad. The primary aim of the study was to evaluate the incidence of surgical wound infection in patients subjective to colorectal surgery where a surgical infection prevention protocol was applied. The second objective was the relationship between surgical infection and peri-operative factors. MATERIAL AND METHODS: An observational study was conducted on 100 patients who had undergone elective colorectal surgery. Demographic data and related surgical and post-surgical data were recorded. A surgical wound infection was defined using the criteria of Disease Control and Prevention Hospital Infection Centres. RESULTS: The median age of the patients was 68 years (range 25-88), 65% were male, and 59% were ASA 3-4. There was more than 80% compliance to the protocol in its different sections. There was laparoscopic access in 31% of the cases. The incidence of superficial and deep surgical wound infection was 25%. The patients with an infection had a higher prevalence of diabetes (48% vs 24%), transfusion (56% vs 28%), paralytic ileum (48% vs 18.7%), and intra-abdominal abscess (16% vs 3%). The multivariate analysis associated, preoperative haemoglobin and blood glucose, and the duration of the surgery, with incisional infection. CONCLUSIONS: The prevention protocol did not have an impact on the incidence of surgical wound infection.

Hemodynamic profile and tissular oxygenation in orthotopic liver transplantation: Influence of hepatic artery or portal vein revascularization of the graft.

We performed a prospective, randomized study of adult patients undergoing orthotopic liver transplantation, comparing hemodynamic and tissular oxygenation during reperfusion of the graft. In 30 patients, revascularization was started through the hepatic artery (i.e., initial arterial revascularization) and 10 minutes later the portal vein was unclamped; in 30 others, revascularization was started through the portal vein (i.e., initial portal revascularization) and 10 minutes later the hepatic artery was unclamped. The primary endpoints of the study were mean systemic arterial pressure and the gastric-end-tidal carbon dioxide partial pressure (PCO(2)) difference. The secondary endpoints were other hemodynamic and metabolic data. The pattern of the hemodynamic parameters and tissue oxygenation values during the dissection and anhepatic stages were similar in both groups At the first unclamping, initial portal revascularization produced higher values of mean pulmonary pressure (25 +/- 7 mm of Hg vs. 17 +/- 4 mm of Hg; P < 0.05) and wedge and central venous pressures. At the second unclamping, initial portal revascularization produced higher values of cardiac output and mean arterial pressure (87 +/- 15 mm of Hg vs. 79 +/- 15 mm of Hg; P < 0.05) and pulmonary blood pressure. Postreperfusion syndrome was present in 13 patients (42.5%) in the arterial group and in 11 patients (36%) in the portal group. During revascularization, the values of gastric and arterial pH decreased in both groups and recovered at the end of the procedure, but were more accentuated in the initial arterial revascularization group. In conclusion, we found that initial arterial revascularization of the graft increases pulmonary pressure less markedly, so it may be indicated for those patients with poor pulmonary and cardiac reserve. Nevertheless, for the remaining patients, initial portal revascularization offers more favorable hemodynamic and metabolic behavior, less inotropic drug use, and earlier normalization of lactate and pH values.

Sevoflurane requirements during coloproctologic surgery: difference between two different epidural regimens.

STUDY OBJECTIVE: To examine the influence of epidural morphine on the end-tidal sevoflurane concentration titrated to maintain bispectral index (BIS) values between 40 and 50. DESIGN: Prospective, double-blinded clinical trial. SETTINGS: Anesthesia department of a university hospital. PATIENTS: 40 ASA physical status I, II, and III patients scheduled for elective coloproctological surgery. INTERVENTIONS: Patients were randomized to receive via a thoracic epidural catheter either a) bupivacaine 0.25% (10 mL) and saline 0.9% (2 mL) as a bolus followed by an infusion of bupivacaine 0.25% (5 mL/hr) or b) bupivacaine 0.25% (10 mL) and morphine 0.1% (2 mL) as a bolus followed by an infusion of bupivacaine 0.25% plus morphine 0.025% (5 mL/hr). Anesthesia was induced with propofol, fentanyl 2 microg kg(-1) and atracurium and maintained with sevoflurane and nitrous oxide in oxygen. Sevoflurane level was titrated to maintain a BIS value between 40 and 50. After extubation, patients were asked about the presence of pain. MAIN RESULTS: There was no significant difference between groups of end-tidal sevoflurane concentrations at identical BIS values and hemodynamic values at any time in the study. However, the morphine group had a lower pain score level at extubation than did the plain bupivacaine group (no pain on movement, 79% vs. 31.5%, p < 0.01). CONCLUSIONS: Adding morphine to the bupivacaine epidural solution did not reduce sevoflurane requirements but did provide high-quality postoperative analgesia, mainly just after tracheal extubation.