Effect of Pharmacoprophylaxis on Postoperative Outcomes in Adult Elective Colorectal Surgery: A Multi-Center Retrospective Cohort Study within an Enhanced Recovery after Surgery Framework.

BACKGROUND: The application of enhanced recovery after surgery principles decreases postoperative complications (POCs), length of stay (LOS), and readmissions. Pharmacoprophylaxis decreases morbidity, but the effect of specific regimens on clinical outcomes is unclear. METHODS AND MATERIALS: Records of 476 randomly selected adult patients who underwent elective colorectal surgeries (ECRS) at 10 US hospitals were abstracted. Primary outcomes were surgical site infection (SSI), venous thromboembolism (VTE), postoperative nausea and vomiting (PONV), pain, and ileus rates. Secondary outcomes included LOS and 7- and 30-day readmission rates. RESULTS: POC rates were SSI (3.4%), VTE (1.5%), PONV (47.9%), pain (58.1%), and ileus (16.1%). Cefazolin 2 g/metronidazole 500 mg and ertapenem 1 g were associated with the shortest LOS; cefotetan 2 g and cefoxitin 2 g with the longest LOS. No SSI occurred with ertapenem and cefotetan. More Caucasians than Blacks received oral antibiotics before intravenous antibiotics without impact. Enoxaparin 40 mg subcutaneously daily was the most common inpatient and discharge VTE prophylaxis. All in-hospital VTEs occurred with unfractionated heparin. Most received rescue rather than around-the-clock antiemetics. Scopolamine patches, spinal opioids, and IV lidocaine continuous infusion were associated with lower PONV. Transversus abdominis plane block with long-acting local anesthetics, celecoxib, non-anesthetic ketamine bolus, ketorolac IV, lidocaine IV, and pregabalin were associated with lower in-hospital pain severity rates. Gabapentinoids and alvimopan were associated with lower ileus rates. Acetaminophen, alvimopan, famotidine, and lidocaine patches were associated with shorter LOS. CONCLUSIONS: Significant differences in pharmacotherapy regimens that may improve primary and secondary outcomes in ECRS were identified. In adult ECRS, cefotetan or ertapenem may be better regimens for preventing in-hospital SSI, while ertapenem or C/M may lead to shorter LOS. The value of OA to prevent SSI was not demonstrated. Inpatient enoxaparin, compared to UFH, may reduce VTE rates with a similar LOS. A minority of patients had a documented PONV risk assessment, and a majority used as-needed rather than around-the-clock strategies. Preoperative scopolamine patches continued postoperatively may lower PONV and PDNV severity and shorter LOS. Alvimopan may reduce ileus and shorten LOS. Anesthesia that includes TAP block, ketorolac IV, and pregabalin use may lead to reduced pain rates. Acetaminophen, alvimopan, famotidine, and lidocaine patches may shorten LOS. Given the challenges of pain management and the incidence of PONV/PDNV found in this study, additional studies should be conducted to determine optimal opioid-free anesthesia and the benefit of newer antiemetics on patient outcomes. Moreover, future research should identify latent pharmacotherapy variables that impact patient outcomes, correlate pertinent laboratory results, and examine the impact of order or care sets used for ECRS at study hospitals.

Clinical Impact of Sugammadex in the Reversal of Neuromuscular Blockade.

Background A neuromuscular blockade (NMB) is used in general anesthesia to facilitate endotracheal intubation and muscle relaxation during procedural and surgical interventions. Rapid and complete reversal of the NMB allows for patient recovery to the preoperative baseline with ventilation and motor function, along with the complete return of gastroesophageal motility, thereby expediting recovery and preventing microaspiration in the postoperative period. Sugammadex is a modified gamma cyclodextrin that complexes with steroidal neuromuscular blocking agents (specifically, rocuronium and vecuronium), leading to a molecular gradient and removal of the agents from the neuromuscular junction. Sugammadex has been shown to have a more rapid reversal of neuromuscular blockade compared to neostigmine. The purpose of this study was to evaluate if perioperative efficiency was increased when sugammadex was used for paralytic reversal compared to the traditional regimen of neostigmine and glycopyrrolate. Methods A retrospective cohort study of patients admitted for surgical intervention in June 2019 was conducted. Two groups were compared: those who received sugammadex for reversal and those who received neostigmine, plus glycopyrrolate. The primary outcome was time to extubation from the administration of the reversal agent. Results Two hundred seventy-one surgical cases were evaluated. Average doses of sugammadex for those with profound neuromuscular blockade as indicated by a train of four (TOF) of 0 - 2 was 2.47 (0.9) mg/kg for sugammadex and 0.042 (0.01) mg/kg for neostigmine, plus glycopyrrolate. Seventeen patients in the sugammadex group experienced bradycardia after reversal compared to 22 in the neostigmine, plus glycopyrrolate, group (p = 0.73). Reintubation was required for three patients in the neostigmine, plus glycopyrrolate, group and no patients in the sugammadex group. The mean time to extubation from the procedure end comparing reversal with sugammadex and neostigmine, plus glycopyrrolate, was 12.5 (7.6) minutes versus 13.7 (8.8) minutes (p = 0.44), respectively. Comparison of reversal with sugammadex versus neostigmine, plus glycopyrrolate, and time spent in the post-anesthesia care unit was 83.6 (48.6) minutes versus 81.7 (46.6) (p = 0.73), respectively. Conclusions In this retrospective cohort study, we observed a deviation in the recommended sugammadex dosage and increased reintubation rates but no difference in time to extubation or Post-Anesthesia Care Unit (PACU) length of stay times when patients received sugammadex compared to neostigmine, plus glycopyrrolate, for neuromuscular blockade reversal. Understanding the PACU flow and culture, education of providers about dosages, along with completion of prospective studies, to correlate acceleromyograph values to reversal and postoperative ventilatory and deglutary function can help assess the true clinical value of sugammadex.

Prospective assessment of Clostridioides (formerly Clostridium) difficile colonization and acquisition in hematopoietic stem cell transplant patients.

BACKGROUND: Patients undergoing hematopoietic stem cell transplant (HSCT) possess numerous risk factors for Clostridioides (formerly Clostridium) difficile infection (CDI) and experience a high rate of diarrhea. Colonization rates of Clostridium difficile vary greatly among subgroup analyses with recent studies demonstrating colonization rates in the blood and marrow transplant units up to nine times that of the general population. METHODS: The primary objectives of this study were to identify the rate of C difficile colonization and acquisition in HSCT patients admitted to the blood and marrow transplant unit. This was a prospective study that included all adult patients admitted for hematopoietic stem cell transplantation. Stool specimens were routinely collected on admission and weekly thereafter for a maximum of six samples per patient. RESULTS: Forty-two patients met inclusion criteria and had baseline samples available for analysis. The rate of C difficile colonization on admission was 24%, and an additional 9% of patients acquired the organism during admission. Twelve percent of patients developed CDI that was diagnosed clinically. Univariate analysis showed an increased risk of colonization for patients with three or more prior chemotherapy cycles. CONCLUSIONS: Given high colonization rates coupled with high risk of CDI in this population, providers must be judicious when testing for CDI and interpreting test results for HSCT patients.

Retrospective cross-sectional pilot study of rifaximin dosing for the prevention of recurrent hepatic encephalopathy.

Standard treatment for hepatic encephalopathy (HE) includes medications that reduce ammonia and bacterial translocation in the gut. Rifaximin can be used off-label for the reduction of overt HE. The study purpose was to determine efficacy of traditional rifaximin dosing (400 mg three times daily) compared with newer dosing (550 mg twice daily) via readmission rates for the prevention of recurrent HE. This was a retrospective, observational, cross-sectional pilot study conducted in a tertiary medical center. A total of 226 patients 18-89 years of age with documentation of HE via ICD-9 code who started rifaximin therapy while inpatient between April 2009 and June 2014 were evaluated. Data collected included rifaximin dosing, other medications used to treat HE, duration of therapy, time to readmission, and various laboratory values. There were no differences in readmission rates at 30 days, 60 days, or 6 months between treatment groups. Additionally, there was no difference in the odds of readmission between the treatment groups (OR = 0.77, 95% CI: [0.201, 4.365], P = 0.718). Patients had a low overall probability of readmission over the observational period. Based on average wholesale price data, the cost for a 9-day supply of rifaximin for the 400-mg dosing regimen is $952.56 versus $605.16 for the 550-mg dosing regimen. The rifaximin 550-mg dosing strategy should be utilized in hospitalized patients for the prevention of recurrent HE as there was no difference in readmission rate or time to readmission between dosing groups. The 550-mg regimen had a lower acquisition cost for a 9-day duration of treatment in the studied institution.