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Anesthesia during and after off-pump surgery is critical for the outcome of the procedure. Intubation time has been shown to correlate with ICU time and length of stay. This study is to evaluate the extubation time and predictors of prolonged extubation in this institution. One hundred and sixty consecutive patients during Jan 2001-June 2002, excluding pre-operative tracheostomy (n = 1) were retrospectively reviewed. Anesthetic agents include fentanyl, rocuronium Bromide, midazolam and sevoflurane. Phenylephrine and nitroglycerine were used to maintain adequate arterial pressures. Post-operative pain control was mainly with intravenous fentanyl and oral pain medications. The extubation time was divided into 4 groups; 0-2 h, n = 76, mean = 1.11 +/- 0.5 h; 2-4 h, n = 30, mean = 2.91 +/- 0.5 h; 4-24 h, n = 39, mean = 11.44 +/- 7.3 h; > 24 h, n = 5, mean = 33.3 +/- 21 h. The data were collected and analyzed following the guidelines of National STS cardiac surgery database. All pre-operative risk factors included: Age (> 70 yrs vs < or = 70 yrs), gender (male vs female), diabetes (yes vs no), hypertension (yes vs no), morbid obesity (yes vs no), renal insufficiency (yes vs no), chronic obstructive lung disease (yes vs no), history of cerebrovascular accident (yes vs no), smoking (yes vs no), dyslipidemia (yes vs no), history of myocardial infarction (MI) (yes vs no), history of congestive heart failure (CHF) (yes vs no), unstable angina (yes vs no), left ventricular ejection fraction (LVEF) (> 40% vs < or = 40%), left main (LM) lesion (LM > 50% vs LM < or = 50%), intra-aortic balloon pump (IABP) used (yes vs no) and time between operating and closing (> 4.30 h vs < or = 4.30 h) were used to predict failed early extubation (2 h). More than 50 per cent of the patients were extubated in less than 2 h (1.11 +/- 0.5 h) and only 5 patients were extubated after 24 h. Univariate analysis revealed old age, diabetes, MI, CHF, LVEF < or = 0.4 and the use of IABP are the predictors (p < 0.05) of failed early extubation. Multivariate analysis of these variables revealed old age with adjusted odds ratio of 4.6 (95% CI = 1.5-13.7) p < 0.01, diabetes with adjusted odds ratio of 3.2 (95% CI = 1.3-7.5) p < 0.01 and IABP used with adjusted odds ratio of 4.3 (95% CI = 1.3-14.6) p = 0.02 are the predictors of fail early extubation. The findings suggested early extubation is possible in OPCAB surgery and attention should be made when operate in patients who have old age, diabetes, and IABP used.
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PMID:Off-pump coronary artery bypass surgery: evaluation of extubation time and predictors of failed early extubation. 1286 66

Extended spinal anaesthesia using a spinal micro-catheter was used as a primary method of anaesthesia for elective colorectal cancer surgery in 68 high risk patients over a 14-year period in our institution. The technique was also useful in eight elective and 13 emergency abdominal surgeries. All patients suffered from severe chronic obstructive airway disease requiring multiple inhalers and drugs (ASA III). Thirty nine of these patients also suffered from angina, myocardial infarction, diabetes and other systemic diseases (ASA IV). Surgery included right hemicolectomy, left hemicolectomy, total colectomy, sigmoid colectomy, Hartman's resection, anterior resection of rectum, abdominoperineal resection, cholecystectomy (open and laparoscopic) and obstructed inguinal hernia requiring laparotomy. Spinal anaesthesia was performed under strict aseptic conditions with a 22 gauge spinal needle with a mixture consisting of 2.75ml of 0.5% heavy bupivacaine and 0.25ml of fentanyl (25microg). This was followed by placement of a spinal micro-catheter and the duration of anaesthesia was extended by intermittent injection of 0.5% isobaric bupivacaine. Brief hypotension occurred in 12.4% of patients during the establishment of anaesthetic block height to T6-7 and was duly treated with intravenous administration of fluid and ephedrine hydrochloride. Good anaesthesia resulted in all patients except for brief discomfort in some patients during hemicolectomy surgery possibly due to the dissection and traction on the peritoneum causing irritation to the diaphragm. The use of sedation was avoided. General anaesthesia was administered in one patient and this patient required postoperative ventilation and cardiovascular support in the Intensive Care Unit. The spinal micro-catheter was removed at the end of surgery. Postoperative pain relief was obtained by administering intravenous morphine through a patient controlled analgesia machine in the critical care ward area (High Dependency Unit). There was a low incidence of minor postoperative side effects such as nausea (14.6%), vomiting (7.9%), minor post dural puncture headache (5.6%) and pruritus (5.6%). We conclude that spinal anaesthesia with a micro-catheter may be used as a primary method of anaesthesia for colorectal cancer surgery and other major abdominal surgery in high-risk patients for whom general anaesthesia would be associated with higher morbidity and mortality.
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PMID:Spinal anaesthesia with a micro-catheter in high-risk patients undergoing colorectal cancer and other major abdominal surgery. 1803 40

Objective Postoperative pain following lower extremity revascularization procedures is traditionally controlled with narcotic administration. However, this may not adequately control the pain and puts the patient at risk for complications from opiate use. Here we report an alternative strategy for pain management using a continuous catheter-infused local anesthetic into the operative limb. Design Retrospective case-control study. Methods Patients undergoing lower extremity revascularization procedures using continuous catheter-infused local anesthetic were compared to similar patients undergoing similar procedures during the same time period who did not receive continuous catheter-infused local anesthetic. Records were reviewed for pain scores, narcotics consumption, length of stay, need for postoperative chest X-ray, supplemental oxygen use, wound complications, and 30-day readmission. Results There were 153 patients (mean age 69.5 years) from September 2011 to December 2014 who underwent common femoral artery procedures, femoral-popliteal bypass, femoral-tibial bypass, popliteal aneurysm repair, popliteal to pedal bypass, popliteal artery thrombo-embolectomy, sapheno-popliteal venous bypass, or ilio-femoral bypass. There were no significant differences between the continuous catheter-infused local anesthetic ( n=57) and control ( n=96) groups regarding age, body mass index, cardiac history, diabetes, hypertension, and procedures performed. The continuous catheter-infused local anesthetic group showed better cumulative average pain scores, better high pain scores on postoperative days 1-3, and better average pain scores on postoperative days 2-3 ( P<0.03). The continuous catheter-infused local anesthetic group had lower median narcotics consumption on postoperative days 1-2 ( P=0.02). No differences were found in postoperative length of stay, urinary catheter use, number of postoperative chest X-rays, oxygen use, mobilization, or fever. Wound complications occurred in 8.8% of the continuous catheter-infused local anesthetic group and in 11.5% of controls (P=0.79). Readmission rates were 23% (continuous catheter-infused local anesthetic) and 21% (controls; P=0.84). Conclusion Postoperative continuous catheter-infused local anesthetic reduces pain scores and pain medication use compared to standard opiate therapy in these patients, without increasing wound complication or readmission rates. Continuous catheter-infused local anesthetic appeared to have no effect on the incidence of pulmonary complications, mobilization, or fever.
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PMID:Postoperative continuous catheter-infused local anesthetic reduces pain scores and narcotic use after lower extremity revascularization. 2975 40