The impact of an enhanced recovery after minimally invasive surgery program on opioid use in gynecologic oncology patients undergoing hysterectomy.

OBJECTIVES: To evaluate the effects of an enhanced recovery after minimally invasive surgery (MIS-ERAS) protocol on opioid requirements and post-operative pain in patients undergoing minimally invasive hysterectomy on a gynecologic oncology service. METHODS: For this retrospective study, opioid use (oral morphine equivalents (OME)) and post-operative pain scores were compared between patients undergoing minimally invasive hysterectomy pre and post MIS-ERAS protocol implementation. Patients with chronic opioid use or chronic pain were excluded. Opioid use and pain scores were compared between groups using Wilcoxon Rank Sum, Student's t-test, and multiple linear regression. Compliance and factors associated with opioid use and pain scores were assessed. RESULTS: The MIS-ERAS cohort (n = 127) was compared to the historical cohort (n = 99) with no differences in patient demographic, clinical or surgical characteristics observed between groups. Median intra-operative and inpatient post-operative opioid use were lower among the MIS-ERAS cohort (12.0 vs 32.0 OME, p < .0001 and 20.0 vs 35.0 OME, p = .02, respectively). Pain scores among MIS-ERAS patients were also lower (mean 3.6 vs 4.1, p = .03). After controlling for age, BMI, operative time, length of stay, cancer diagnosis, and surgical approach, the MIS-ERAS cohort used 10.43 fewer OME intra-operatively (p < .001), 10.97 fewer OME post-operatively (p = .019) and reported pain scores 0.56 points lower than historical controls (p = .013). Compliance was ≥81% for multimodal analgesia elements and ≥75% overall. CONCLUSIONS: Enhanced recovery after minimally invasive surgery protocol implementation is an effective means to reduce opioid use, both in the intra-operative and post-operative phases of care, among gynecologic oncology patients undergoing minimally invasive hysterectomy.

A cohort study for derivation and validation of a clinical prediction scale for hospital-onset Clostridium difficile infection.

OBJECTIVE: To develop and validate a clinical prediction scale for hospital-onset Clostridium difficile infection (CDI). METHODS: A community-based, 360-bed hospital located in the suburbs of a metropolitan area in the United States served as the setting for the present retrospective cohort study. The cohort consisted of patients admitted to the adult medical service over a six-year period from October 2005 to September 2011. The cohort was divided into derivation (October 2005 to September 2009) and validation (October 2009 to September 2011) groups. The primary outcome measure was hospital-onset CDIs identified as stool positive for C difficile after 48 h of hospital admission ordered for new-onset unformed stool by the treating physician. RESULTS: In the derivation phase, 35,588 patients were admitted to the medical service and 21,541 stayed in hospital beyond 48 h. A total of 266 cases of CDI were identified, 121 of which were hospital onset. The developed clinical prediction scale included the onset of unformed stool (5 points), length of hospital stay beyond seven days (4 points), age >65 years (3 points), long-term care facility residence (2 points), high-risk antibiotic use (1 point) and hypoalbuminemia (1 point). The scale had an area under the receiver operating curve (AUC) of 0.93 (95% CI 0.82 to 0.94) in predicting hospital-onset CDI, with a sensitivity of 0.94 (95% CI 0.88 to 0.97) and a specificity of 0.80 (95% CI 0.79 to 0.80) at a cut-off score of 9 on the scale. During the validation phase, 16,477 patients were admitted, of whom 10,793 stayed beyond 48 h and 58 acquired CDI during hospitalization. The predictive performance of the score was maintained in the validation cohort (AUC 0.95 [95% CI 0.93 to 0.96]) and the goodness-to-fit model demonstrated good calibration. CONCLUSION: The authors developed and validated a simple clinical prediction scale for hospital-onset CDI. This score can be used for periodical evaluation of hospitalized patients for early initiation of contact precautions and empirical treatment once it is validated externally in a prospective manner.