• Antonio Messina, Yaroslava Longhitano, Christian Zanza, Lorenzo Calabrò, Federico Villa, Gianmaria Cammarota, Filippo Sanfilippo, Maurizio Cecconi, and Chiara Robba.
• From the IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy (AM, LC, FV, MC), Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy (AM, MC), Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA (YL, CZ), IRCCS Ospedale Policlinico San Martino (CR), Dipartimento di Medicina E Chirurgia, Universita' Degli Studi di Perugia, Perugia (GC) and Department of Anaesthesia and Intensive Care, A.O.U. 'Policlinico-San Marco', Catania, Italy (FS).
• Eur J Anaesthesiol. 2023 Jun 1; 40 (6): 442449442-449.

BackgroundSubarachnoid haemorrhage (SAH) is a life-threatening condition with associated brain damage. Moreover, SAH is associated with a massive release of catecholamines, which may promote cardiac injury and dysfunction, possibly leading to haemodynamic instability, which in turn may influence a patient's outcome.ObjectivesTo study the prevalence of cardiac dysfunction (as assessed by echocardiography) in patients with SAH and its effect on clinical outcomes.DesignSystematic review of observational studies.Data SourcesWe performed a systematic search over the last 20 years on MEDLINE and EMBASE databases.Eligibility CriteriaStudies reporting echocardiography findings in adult patients with SAH admitted to intensive care. Primary outcomes were in-hospital mortality and poor neurological outcome according to the presence or absence of cardiac dysfunction.ResultsWe included a total of 23 studies (4 retrospective) enrolling 3511 patients. The cumulative frequency of cardiac dysfunction was 21% (725 patients), reported as regional wall motion abnormality in the vast majority of studies (63%). Due to the heterogeneity of clinical outcome data reporting, a quantitative analysis was carried out only for in-hospital mortality. Cardiac dysfunction was associated with a higher in-hospital mortality [odds ratio 2.69 (1.64 to 4.41); P  < 0.001; I2 = 63%]. The GRADE of evidence assessment resulted in very low certainty of evidence.ConclusionAbout one in five patients with SAH develops cardiac dysfunction, which seems to be associated with higher in-hospital mortality. The consistency of cardiac and neurological data reporting is lacking, reducing the comparability of the studies in this field.Copyright © 2023 European Society of Anaesthesiology and Intensive Care. Unauthorized reproduction of this article is prohibited.

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