Anesthesia and analgesia · 2024
Identifying Variation in Intraoperative Management of Brain-Dead Organ Donors and Opportunities for Improvement: A Multicenter Perioperative Outcomes Group Analysis.
СтатьяМногоцентровое исследованиеНазвание и аннотация: Перевод пока не подготовлен
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Lele Abhijit V, Vail Emily A, O'Reilly-Shah Vikas N, DeGraw Xinyao, Domino Karen B, Walters Andrew M, Fong Christine T, Gomez Courtney, Naik Bhiken I, Mori Makoto, Schonberger Robert, Deshpande Ranjit, Souter Michael J, MPOG Perioperative Clinical Research Committee
Аннотация
BACKGROUND: Intraoperative events and clinical management of deceased organ donors after brain death are poorly characterized and may consequently vary between hospitals and organ procurement organization (OPO) regions. In a multicenter cohort, we sought to estimate the incidence of hypotension and anesthetic and nonanesthetic medication use during organ recovery procedures.
METHODS: We used data from electronic anesthetic records generated during organ recovery procedures from brain-dead adults across a Multicenter Perioperative Outcomes Group (MPOG) cohort of 14 US hospitals and 4 OPO regions (2014-2020). Hypotension, defined as mean arterial pressure or MAP <60 mm Hg for at least 10 cumulative minutes was the primary outcome of interest. The associations between hypotension and age, sex, race, anesthesia time, OPOs, and OPO case volume were examined using multivariable mixed-effects Poisson regression analyses with robust standard error estimates. We calculated intraclass correlation coefficients (ICCs) to describe the variation between-MPOG centers and the OPO regions in the use of medications, time of the operation, and duration of the operation.
RESULTS: We examined 1338 brain-dead adult donors, with a mean age of 42± (standard deviation [SD] 15) years; 60% (n = 801) were males and 67% (n = 891) non-Hispanic White. During the entire intraoperative monitoring period, 321 donors (24%, 95% confidence interval [CI], 22%-26%) had hypotension for a median of 13.8% [quartile1-quartile 3: 9.4%-21%] of the monitoring period and a minimum of 10 minutes to a maximum of 96 minutes [(median: 17, quartile1-quartile 3: 12-24]). The probability having hypotension in donors 35 to 64 years and 65 years and older were approximately 30% less than in donors 18 to 34 years of age (adjusted relative risk ratios, aRR, 0.68, 95% CI, 0.55-0.82, aRR, 0.63, 95% CI, 0.42-0.94, respectively). Donors received intravenous heparin (96.4%, n = 1291), neuromuscular blockers (89.5%, n = 1198), vasoactive medications (82.7%, n = 1108), crystalloids (76.2%, n = 1020), halogenated anesthetic gases (63.5%, n = 850), diuretics (43.8%, n = 587), steroids (16.7%, n = 224), and opioids (23.2%, n = 310). The largest practice heterogeneity observed between the MPOG center and OPO regions was steroids (between-center ICCs = 0.65, 95% CI, 0.62-0.75, between-region ICCs = 0.39, 95% CI, 0.27-0.63) and diuretics (between-center ICCs = 0.44, 95% CI, 0.36-0.6, between-region ICCs = 0.30, 95% CI, 0.22-0.49).
CONCLUSIONS: Despite guidelines recommending maintenance of MAP >60 mm Hg in adult brain-dead organ donors, hypotension during recovery procedures was common. Future research is needed to clarify the relationship between intraoperative events with donation and transplantation outcomes and to identify best practices for the anesthetic management of brain-dead donors in the operating room.
METHODS: We used data from electronic anesthetic records generated during organ recovery procedures from brain-dead adults across a Multicenter Perioperative Outcomes Group (MPOG) cohort of 14 US hospitals and 4 OPO regions (2014-2020). Hypotension, defined as mean arterial pressure or MAP <60 mm Hg for at least 10 cumulative minutes was the primary outcome of interest. The associations between hypotension and age, sex, race, anesthesia time, OPOs, and OPO case volume were examined using multivariable mixed-effects Poisson regression analyses with robust standard error estimates. We calculated intraclass correlation coefficients (ICCs) to describe the variation between-MPOG centers and the OPO regions in the use of medications, time of the operation, and duration of the operation.
RESULTS: We examined 1338 brain-dead adult donors, with a mean age of 42± (standard deviation [SD] 15) years; 60% (n = 801) were males and 67% (n = 891) non-Hispanic White. During the entire intraoperative monitoring period, 321 donors (24%, 95% confidence interval [CI], 22%-26%) had hypotension for a median of 13.8% [quartile1-quartile 3: 9.4%-21%] of the monitoring period and a minimum of 10 minutes to a maximum of 96 minutes [(median: 17, quartile1-quartile 3: 12-24]). The probability having hypotension in donors 35 to 64 years and 65 years and older were approximately 30% less than in donors 18 to 34 years of age (adjusted relative risk ratios, aRR, 0.68, 95% CI, 0.55-0.82, aRR, 0.63, 95% CI, 0.42-0.94, respectively). Donors received intravenous heparin (96.4%, n = 1291), neuromuscular blockers (89.5%, n = 1198), vasoactive medications (82.7%, n = 1108), crystalloids (76.2%, n = 1020), halogenated anesthetic gases (63.5%, n = 850), diuretics (43.8%, n = 587), steroids (16.7%, n = 224), and opioids (23.2%, n = 310). The largest practice heterogeneity observed between the MPOG center and OPO regions was steroids (between-center ICCs = 0.65, 95% CI, 0.62-0.75, between-region ICCs = 0.39, 95% CI, 0.27-0.63) and diuretics (between-center ICCs = 0.44, 95% CI, 0.36-0.6, between-region ICCs = 0.30, 95% CI, 0.22-0.49).
CONCLUSIONS: Despite guidelines recommending maintenance of MAP >60 mm Hg in adult brain-dead organ donors, hypotension during recovery procedures was common. Future research is needed to clarify the relationship between intraoperative events with donation and transplantation outcomes and to identify best practices for the anesthetic management of brain-dead donors in the operating room.