Background The goal of this study was to detect the predictors of chronic pain at 6 months after thoracic surgery from a comprehensive evaluation of demographic, psychosocial, and surgical factors. Methods Thoracic surgery patients were enrolled 1 week before surgery and followed up 6 months postsurgery in this prospective, observational study. Comprehensive psychosocial measurements were assessed before surgery. The presence and severity of pain were assessed at 3 and 6 months after surgery. One hundred seven patients were assessed during the first 3 days after surgery, and 99 (30 thoracotomy and 69 video-assisted thoracoscopic surgery, thoracoscopy) patients completed the 6-month follow-up. Patients with versus without chronic pain related to thoracic surgery at 6 months were compared. Results Both incidence (P = 0.37) and severity (P = 0.97) of surgery-related chronic pain at 6 months were similar after thoracotomy (33%; 95% CI, 17 to 53%; 3.3 ± 2.1) and thoracoscopy (25%; 95% CI, 15 to 36%; 3.3 ± 1.7). Both frequentist and Bayesian multivariate models revealed that the severity of acute pain (numerical rating scale, 0 to 10) is the measure associated with chronic pain related to thoracic surgery. Psychosocial factors and quantitative sensory testing were not predictive. Conclusions There was no difference in the incidence and severity of chronic pain at 6 months in patients undergoing thoracotomy versus thoracoscopy. Unlike other postsurgical pain conditions, none of the preoperative psychosocial measurements were associated with chronic pain after thoracic surgery.

Desflurane reduces the average extubation time and the variability of extubation time by 20%-25% relative to sevoflurane. The principal economic value of these end points is their reductions of direct (labor) costs of OR time. However, reductions in intangible costs of prolonged extubation are real, being associated with subsequent delays. Reductions in the average and variance of times to extubation can be interpreted and monitored in terms of corresponding expected 75% reductions in the incidences of prolonged extubation times by using desflurane relative to sevoflurane.

Background: Although studies in neonatal animals show that anesthetics have neurotoxic effects, relevant human evidence is limited. We examined whether children who had surgery during infancy showed deficits in academic achievement. Methods: We attempted to contact parents of 577 children who, during infancy, had one of three operations typically performed in otherwise healthy children. We compared scores on academic achievement tests with population norms. Results: Composite scores were available for 287 patients. The mean normal curve equivalent score was 43.0 Ϯ 22.4 (mean Ϯ SD), lower than the expected normative value of 50, P Ͻ 0.0001 by one-sample Student t test; and 35 (12%) had scores below the 5th percentile, more than expected, P Ͻ 0.00001 by binomial test. Of 133 patients who consented to participate so that their scores could be examined in relation to their medical records, the mean score was 45.9 Ϯ 22.9, P ϭ 0.0411; and 15 (11%) scored below the 5th percentile, P ϭ 0.0039. Of 58 patients whose medical records showed no central nervous system problems/potential risk factors during infancy, 8 (14%) scored below the 5th percentile, P ϭ 0.008; however, the mean score, 47.6 Ϯ 23.4, was not significantly lower than expected, P ϭ 0.441. Duration of anesthesia and surgery correlated negatively with scores (r ϭ Ϫ0.34, N ϭ 58, P ϭ 0.0101).

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The pharmacoeconomics of volatile anesthetics are highly sensitive to measurement of relatively small time differences. Therefore, surgical facilities should use these values combined with their local data (e.g., mean baseline extubation times) when making evidence-based management decisions regarding pharmaceutical purchases and usage guidelines.

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Background One anesthesiologist performance metric is the incidence of “prolonged” (15 min or longer after dressing complete) times to extubation. The authors used several methods to identify the performance outliers and assess whether targeting these outliers for reduction could improve operating room workflow. Methods Time to extubation data were retrieved for 27,757 anesthetics and 81 faculty anesthesiologists. Provider-specific incidences of prolonged extubation were assessed by using unadjusted frequentist statistics and a Bayesian model adjusted for prone positioning, American Society of Anesthesiologist’s base units, and case duration. Results 20.31% of extubations were “prolonged,” and 40% of anesthesiologists were identified as outliers using a frequentist approach, that is, incidence greater than upper 95% CI (20.71%). With an adjusted Bayesian model, only one anesthesiologist was deemed an outlier. If an average anesthesiologist performed all extubations, the incidence of prolonged extubations would change negligibly (to 20.67%). If the anesthesiologist with the highest incidence of prolonged extubations was replaced with an average anesthesiologist, the change was also negligible (20.01%). Variability among anesthesiologists in the incidence of prolonged extubations was significantly less than among other providers. Conclusions Bayesian methodology with covariate adjustment is better suited to performance monitoring than an unadjusted, nonhierarchical frequentist approach because it is less likely to identify individuals spuriously as outliers. Targeting outliers in an effort to alter operating room activities is unlikely to have an operational impact (although monitoring may serve other purposes). If change is deemed necessary, it must be made by improving the average behavior of everyone and by focusing on anesthesia providers rather than on faculty.

This study has focused on sexual problems of male ankylosing spondylitis (AS) patients. Initially, patients' perceptions about the effects of disease on sexual intercourse were assessed. Secondly, we investigated the factors that relate to the disease and affect sexual intercourse negatively. Thirdly, we compared data from the patients whose sexual intercourse were affected negatively with of those whose sexual intercourse were unaffected. This is a cross-sectional and double-centered study. A total of 53 married or sexually active male patients, who were certainly diagnosed with AS according to modified New York criteria, were assessed. Twenty seven patients (50.94%) expressed that their sexual life was affected negatively by the AS in general (affected patients), and 26 patients (49.06%) expressed no negative effect (unaffected patients). Both affected and unaffected patients were compared with each other with regard to educational level, joint involvement, functionality, disease activity, quality of life, and depression status. Mean BASFI, BASDAI scores were worse in the affected group, and the difference was statistically significant (p = 0.012, p = 0.039, respectively). There were statistically significant differences between the groups with regard to lumbar column and hip involvement (p = 0.035, p = 0.021; respectively). The physical functioning, role limitations due to physical problems, vitality/energy/fatigue, general mental health, and general health perception subscale scores of SF-36 were worse in the affected group, and the differences were statistically significant (p = 0.027, p = 0.023, p = 0,013, p = 0.005, p = 0.045, respectively). Affected patients' Beck Depression Inventory scores were worse than those of unaffected patients, and the difference between the groups was statistically significant (p = 0.039). Sexual problems are common in AS patients and might usually be associated with joint involvement, decreased functionality, increased disease activity, decreased health quality, and depression. Therefore, while examining AS patients and managing their treatments, special attention must be given to all domains of life instead of only physical problems.