Studies of cardiac complications in patients with CAP.

aCongestive heart failure, atrial fibrillation, severe angina or myocardial infarction or stroke [13]; acute coronary or ventricular insufficiency [17]; cardiovascular complications likely to necessitate continued hospitalization [22]; cardiac complications without further specification [23]; acute coronary syndrome and/or heart failure [28]; myocardial infarction, angina pectoris, revascularization by angioplasty/coronary artery bypass graft (CABG) or death secondary to coronary heart disease, cerebrovascular accident, congestive heart insufficiency or claudication [29]; myocardial infarction, atrial fibrillation or ventricular tachycardia or incident heart failure [30]; and myocardial infarction, atrial fibrillation, congestive heart failure or stroke [31].bIncident atrial fibrillation [10],[14],[15],[31],[32]; cardiac dysrrhythmias/arrhythmias [16],[26]; incident atrial arrhythmia [19]; atrial flutter or fibrillation, and ventricular tachycardia, but excluding terminal arrhythmias [30].cMyocardial infarction [15],[19],[20],[30],[31],[33]; unstable angina [27]; acute coronary syndrome [32],[34].dPneumococcal pneumonia [11],[20],[30]; pneumococcal and H. influenzae pneumonia [34].eInpatients without severe vital signs or metabolic abnormalities, altered mental status, suppurative complications or coexisting medical conditions requiring hospitalization [15]; inpatients who survived the first 48 h of hospitalization [24], inpatients not initially admitted to the intensive care unit [25],[28]; inpatients with pneumonia severity index (PSI) risk classes I–II [27].fInpatients admitted to the intensive care unit (ICU).gFor ACS, patients from Musher et al. (2007) [30] were included in Corrales-Medina et al. (2009) [34].