Out-of-hospital cardiac arrest survivors with cognitive impairments have lower exercise capacity.

Abstract:

BACKGROUND:Hypoxic brain injury is described in up to 40% of survivors after out-of-hospital cardiac arrest (OHCA). Besides cognitive impairments, lack of circulation may also affect exercise capacity. It is not known if exercise capacity of patients with cognitive impairments differs from other OHCA survivors. METHODS:This retrospective cohort study included patients ≥18 years with myocardial infarction (MI) as cause of OHCA admitted for cardiac rehabilitation between February 2011 and April 2014. Data in socio-demographic, OHCA and medical interventions were retrieved. Cognitive functioning was determined with the Mini-Mental State Examination, Cognitive Failures Questionnaire and the Informant Questionnaire on Cognitive Decline in the Elderly. Exercise capacity (VO2peak), workload (Watts) and blood pressure (mmHg) were measured at maximum cardiopulmonary exercise. Heart rate (bpm) was measured at rest and maximum exercise and Metabolic Equivalents of Tasks (MET) were calculated. RESULTS:65 patients after OHCA caused by MI were included (85% male, median age 60years). Of 53 patients Cardio Pulmonary Exercise Test data was available of which nine patients showed cognitive impairments. Significant differences (p<0.05) in exercise capacity were found between patients with and without cognitive impairments: VO2peak (median 14.5 vs 19.7ml/kg/min), workload (median 130.0 vs 143.5W) and MET's (median 4.1 vs 5.6). CONCLUSION:Based on this small study, there seems to be a correlation between cognitive impairments and lower exercise capacity in patients referred for rehabilitation after OHCA caused by MI. It seems sensible for rehabilitation programs to take the lower exercise capacity of patients with cognitive impairments into account.

journal_name

Resuscitation

journal_title

Resuscitation

authors

Boyce LW,Reinders CC,Volker G,Los E,van Exel HJ,Vliet Vlieland TPM,Goossens PH

doi

10.1016/j.resuscitation.2017.04.010

subject

Has Abstract

pub_date

2017-06-01 00:00:00

pages

90-95

eissn

0300-9572

issn

1873-1570

pii

S0300-9572(17)30161-2

journal_volume

115

pub_type

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