• Ariane Clairoux, Maxim Soucy-Proulx, François Pretto, Victoria Courgeon, Maxime Caron-Goudreau, Rami Issa, Marie-Ève Bélanger, Véronique Brulotte, Olivier Verdonck, Moulay Idrissi, Annik Fortier, and Philippe Richebé.
• Department of Anesthesiology and Pain Medicine, Maisonneuve-Rosemont Hospital, CIUSSS de l'Est de l'Ile de Montréal (CEMTL), University of Montreal, 5415, Boulevard de l'Assomption, Montreal, QC, H1T 2M4, Canada. ariane.clairoux@umontreal.ca.
• Can J Anaesth. 2022 Apr 1; 69 (4): 485493485-493.

BackgroundThe COVID-19 pandemic has markedly increased delays in oncologic surgeries because of the virus's impact on traditional anesthetic management. Novel protocols, developed to protect patients and medical professionals, have altered the ways and instances in which general anesthesia (GA) can be safely performed. To reduce virus exposure related to aerosol-generating procedures, it is now recommended to avoid GA when feasible and promote regional anesthesia instead. At our institution, we observed faster postoperative recovery in patients who received paravertebral blocks for breast cancer surgery instead of GA. This led us to formally evaluate whether regional anesthesia instead of GA helped improve time to hospital discharge.MethodsWe conducted a historical cohort study to retrospectively analyze two cohorts of patients: prepandemic vs intrapandemic. We obtained approval from our institutional ethics committee to review files of consecutive patients who underwent breast cancer surgery between 30 March 2020 and 30 June 2020 (intrapandemic group; N = 106) and consecutive patients-moving backwards-from 28 February 2020 to 6 December 2019 (prepandemic group; N = 104). The primary outcome was the length of time between the end of surgery to readiness for hospital discharge. Secondary outcomes included the incidence of postoperative nausea and vomiting (PONV), the need for postoperative analgesia, and the duration of stay in the postanesthesia care unit (PACU).ResultsThe median [interquartile range (IQR)] time to readiness for hospital discharge was significantly lower in patients who received paravertebral blocks for breast cancer surgery compared with GA (intrapandemic group, 119 [99-170] min vs prepandemic group, 191 [164-234] min; P < 0.001) as was the incidence of PONV (3% vs 11%; P = 0.03) and median [IQR] PACU durations of stay (29 [21-39] min vs 46 [37-63] min; P < 0.001).ConclusionsPatients who received paravertebral blocks for breast cancer surgery in the intrapandemic group were ready for hospital discharge earlier, spent less time in the PACU, and experienced less PONV than those who received GA in the prepandemic group. With growing surgical wait times, concerns related to aerosol-generating procedures, and recommendations to avoid GA when feasible, paravertebral blocks as the principal anesthetic modality for breast cancer surgery offered benefits for patients and medical teams.© 2022. Canadian Anesthesiologists' Society.

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