Related Experiment Video
Updated: Dec 6, 2025

Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion
Published on: May 26, 2022
Angiotensin II Administration in Patients With COVID-19 Shock
Kwadwo Ofosu-Barko1, Yi Liu1, Faisal Alkhatib Tamimi1
1From the Department of Medicine, Lahey Hospital and Medical Center, Burlington, MA.
Insights
Angiotensin II showed a favorable hemodynamic effect in patients with COVID-19 related shock, reducing the need for norepinephrine equivalent dose. Further research is warranted to evaluate its efficacy in treating this critical condition.
Area of Science:
- Critical Care Medicine
- Pharmacology
- Infectious Diseases
Background:
- COVID-19 infection can lead to shock, a life-threatening condition.
- The renin-angiotensin-aldosterone system is implicated in SARS-CoV-2 pathogenesis.
- Vasopressors are crucial for managing shock, but their optimal use in COVID-19 is under investigation.
Purpose of the Study:
- To assess the hemodynamic impact of angiotensin II in patients experiencing shock due to COVID-19.
- To determine if angiotensin II can effectively reduce vasopressor requirements in this patient population.
Main Methods:
- Retrospective analysis of patients with COVID-19 and shock treated with angiotensin II.
- Hemodynamic parameters including mean arterial pressure, norepinephrine equivalent dose (NED), and urine output were monitored.
- Data collected over the initial 6 hours of angiotensin II treatment.
Main Results:
- Ten patients with COVID-19 related shock received angiotensin II.
- The average norepinephrine equivalent dose (NED) decreased by 30.4% within 6 hours.
- Six patients achieved at least a 25% reduction in NED, with two experiencing a >50% reduction; mean arterial pressure remained stable.
Conclusions:
- Angiotensin II demonstrated a beneficial hemodynamic response in COVID-19 related shock.
- Two patients exhibited significant and rapid improvement.
- Further investigation into angiotensin II for COVID-19 shock is recommended due to the virus's interaction with the renin-angiotensin-aldosterone system.
Purpose:
To understand the hemodynamic effect of angiotensin II as a vasopressor in patients with shock secondary to COVID-19 infection.
Methods:
A retrospective analysis was performed on all patients at a single center with COVID-19 infection and shock who were treated with angiotensin II. The hemodynamic response to angiotensin II was estimated by recording the mean arterial pressure, norepinephrine equivalent dose (NED) and urine output.
Results:
Ten patients with COVID-19 related shock were treated with angiotensin II. Over the initial 6 hours, the average the NED decreased by 30.4% (from 64.6 to 44 µg/min) without a significant change in the mean arterial pressure (0.7% decrease). Six patients experienced at least a 25% reduction in NED by 6 hours, and 2 experienced at least a 50% reduction.
Conclusions:
On average, the hemodynamic response to angiotensin II in COVID-19 related shock was favorable. Two patients had a marked rapid improvement. Given the relationship of SARS-CoV-2 with the renin-angiotensin-aldosterone system, further evaluation of angiotensin II for the treatment of COVID-19 related shock is warranted.
Related Concept Videos
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
Antihypertensive Drugs: Direct Renin Inhibitors
Antihypertensive Drugs: Angiotensin II Receptor Blockers
Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors
Heart Failure V: Medical Management
Heart Failure II: Pathophysiology

