Abstract:
BACKGROUND:Vasodilatory shock refractory to catecholamine vasopressors and arginine vasopressin is highly morbid and responsible for significant mortality. Synthetic angiotensin II is a potent vasoconstrictor that may be suitable for use in these patients. RESEARCH QUESTION:What is the safety and effectiveness of angiotensin II and what variables are associated with a favorable hemodynamic response? STUDY DESIGN AND METHODS:We performed a multicenter, retrospective study at five tertiary medical centers in the United States. The primary end point of hemodynamic responsiveness to angiotensin II was defined as attainment of mean arterial pressure (MAP) of ≥ 65 mm Hg with a stable or reduced total vasopressor dosage 3 h after drug initiation. RESULTS:Of 270 included patients, 181 (67%) demonstrated hemodynamic responsiveness to angiotensin II. Responders showed a greater increase in MAP (+10.3 mm Hg vs +1.6 mm Hg, P < .001) and reduction in vasopressor dosage (-0.20 μg/kg/min vs +0.04 μg/kg/min; P < .001) compared with nonresponders at 3 h. Variables associated with favorable hemodynamic response included lower lactate concentration (OR 1.11; 95% CI, 1.05-1.17, P < .001) and receipt of vasopressin (OR, 6.05; 95% CI, 1.98-18.6; P = .002). In severity-adjusted multivariate analysis, hemodynamic responsiveness to angiotensin II was associated with reduced likelihood of 30-day mortality (hazard ratio, 0.50; 95% CI, 0.35-0.71; P < .001). Arrhythmias occurred in 28 patients (10%) and VTE was identified in 4 patients. INTERPRETATION:In postmarketing use for vasopressor-refractory shock, 67% of angiotensin II recipients demonstrated a favorable hemodynamic response. Patients with lower lactate concentrations and those receiving vasopressin were more likely to respond to angiotensin II. Patients who responded to angiotensin II experienced reduced mortality.
journal_name
Chestjournal_title
Chestauthors
Wieruszewski PM,Wittwer ED,Kashani KB,Brown DR,Butler SO,Clark AM,Cooper CJ,Davison DL,Gajic O,Gunnerson KJ,Tendler R,Mara KC,Barreto EFdoi
10.1016/j.chest.2020.08.2074subject
Has Abstractpub_date
2020-08-31 00:00:00eissn
0012-3692issn
1931-3543pii
S0012-3692(20)34302-6pub_type
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