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Novel preparations allowing for the extended duration of action of local anesthetics have many clinically relevant benefits. With regard to this, the development of liposomal bupivacaine has the potential to significantly impact patient care by improving perioperative pain control. The unique liposomal bilayer that encapsulates bupivacaine allows for a sustained release of local anesthetic for up to 72 h after a single use and can significantly decrease postoperative opioid consumption. SABER-bupivacaine is another depot formulation that helps in sustained release of bupivacaine from an encapsulated bupivacaine in a biodegradable sucrose acetate isobutyrate biolayer. HTX-011 is an investigational extended-release local anesthetic formulation currently undergoing Phase 3 clinical trials. HTX-011 is composed of a bioerodible polymer with bupivacaine and low-dose meloxicam in which the polymer undergoes hydrolysis and allows for sustained release of bupivacaine and meloxicam for 3 days. The present investigation reviews pharmacologic considerations related to the formulation of liposomal bupivacaine, current FDA-approved indications for its use, and future extended-release local anesthetic formulations currently under investigation.

Fluoroquinolones are commonly prescribed antimicrobials that have been implicated in alterations of glucose metabolism. We report a case of refractory fluoroquinolone-induced hypoglycemia in a patient with type-2 diabetes mellitus on glipizide that was successfully treated with octreotide. A patient was admitted with hypoglycemia after having been initiated on levofloxacin therapy. Despite treating the hypoglycemia supportively with multiple boluses of 25 g of dextrose, a continuous dextrose infusion, and glucagon, the patient experienced repeated episodes of rebound hypoglycemia. The persistent hypoglycemia was eventually reversed with the administration of subcutaneous octreotide. Clinicians should be cognizant of this adverse effect of fluoroquinolones, as well as predisposing risk factors, and consider octreotide as an adjunctive therapy for refractory hypoglycemia cases.

This is a review of current literature published between January 2018 and January 2019 including any publications regarding adverse effects related to corticotrophins, corticosteroids, and prostaglandins. The following medications are included: corticotrophins, glucocorticoids, and the following prostaglandins alprostadil (PGE1), epoprostenol (PGI1 analogue), iloprost (PGI2 analogue), misoprostol (PGE1 analogue), and treprostinil (PGI2 analogue).

Objectives Atrial fibrillation (AF) is a common complication after esophagectomy and is associated with symptoms, hemodynamic instability, prolonged hospital stay, and an increased incidence of mortality. Our objective was to determine the efficacy and safety of intravenous amiodarone for prophylaxis of postesophagectomy AF. Methods In this retrospective cohort study, 309 patients who underwent esophagectomy formed the initial cohort. Following propensity score-matching, 110 patients who received prophylactic amiodarone 43.75 mg/hour via continuous intravenous infusion over 96 hours (total dose, 4200 mg) were matched to a control group of patients who did not undergo amiodarone prophylaxis (n = 110). The propensity score was obtained using a multivariate logistic regression model with amiodarone as the variable and the following covariates: age, sex, surgical approach, history of neoadjuvant chemotherapy and/or radiation, chronic obstructive pulmonary disease, heart failure, cardiovascular disease, alcohol use (>7 drinks/week), preadmission β-blockers discontinued during hospitalization, preoperative use of angiotensin-converting enzyme inhibitors or angiotensin receptor blockers, preoperative use of corticosteroids, postoperative use of angiotensin-converting enzyme inhibitors or angiotensin receptor blockers, postoperative use of corticosteroids, postoperative use of statins, and preoperative Charlson comorbidity index. Results The incidence of AF requiring treatment due to rapid ventricular rate and symptoms was lower in the amiodarone group (17 out of 110 [15.5%] vs 32 out of 110 [29.1%]; odds ratio, 0.45; 95% confidence interval, 0.23-0.86; P = .015). There were no significant differences between the groups in median postoperative length of hospital stay, incidence of pulmonary complications, or mortality. The incidences of hypotension requiring treatment (42.7% vs 21.8%; P = .001), bradycardia (8.2% vs 0.0%; P = .002), and corrected QT interval prolongation (10.9% vs 0.0%; P ≤ .0001) were significantly higher in the amiodarone group. Conclusions Prophylactic intravenous amiodarone is associated with a reduction in the incidence of AF following esophagectomy, but is not associated with shorter postoperative length of hospital stay. Intravenous amiodarone for prophylaxis of postesophagectomy AF is associated with hypotension, bradycardia, and corrected QT interval prolongation.