• Gianluca Paternoster, Pietro Bertini, Pasquale Innelli, Paolo Trambaiolo, Giovanni Landoni, Federico Franchi, Sabino Scolletta, and Fabio Guarracino.
• Division of Cardiac Resuscitation, Cardiovascular Anesthesia and Intensive Care, San Carlo Hospital, Potenza, Italy.
• J. Cardiothorac. Vasc. Anesth. 2021 Nov 1; 35 (11): 331933243319-3324.

ObjectiveThis systematic review and meta-analysis aimed to describe the features of right ventricular impairment and pulmonary hypertension in coronavirus disease (COVID-19) and assess their effect on mortality.DesignThe authors carried out a systematic review and meta-analysis of observational studies.SettingThe authors performed a search through PubMed, the International Clinical Trials Registry Platform, and the Cochrane Library for studies reporting right ventricular dysfunction in patients with COVID-19 and outcomes.ParticipantsThe search yielded nine studies in which the appropriate data were available.InterventionsPooled odds ratios were calculated according to the random-effects model.Measurements And Main ResultsOverall, 1,450 patients were analyzed, and half of them were invasively ventilated. Primary outcome was mortality at the longest follow-up available. Mortality was 48.5% versus 24.7% in patients with or without right ventricular impairment (n = 7; OR = 3.10; 95% confidence interval [CI] 1.72-5.58; p = 0.0002), 56.3% versus 30.6% in patients with or without right ventricular dilatation (n = 6; OR = 2.43; 95% CI 1.41-4.18; p = 0.001), and 52.9% versus 14.8% in patients with or without pulmonary hypertension (n = 3; OR = 5.75; 95% CI 2.67-12.38; p < 0.001).ConclusionMortality in patients with COVID-19 requiring respiratory support and with a diagnosis of right ventricular dysfunction, dilatation, or pulmonary hypertension is high. Future studies should highlight the mechanisms of right ventricular derangement in COVID-19, and early detection of right ventricular impairment using ultrasound might be important to individualize therapies and improve outcomes.Copyright © 2021 Elsevier Inc. All rights reserved.

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