Left-Sided Heart Failure Signs and Symptoms

Respiratory Symptoms

Dyspnea, especially with exertion, is a common symptom of left-sided heart failure, according to the American College of Cardiology 1
Paroxysmal nocturnal dyspnea, episodes of severe shortness of breath that wake patients from sleep, is a characteristic symptom of left-sided heart failure 1
Pulmonary rales/crackles on auscultation due to fluid accumulation in the lungs are a sign of left-sided heart failure, as reported by the Journal of the American College of Cardiology 2
Upper lung zone flow redistribution, interstitial or alveolar edema, and bilateral pleural effusions on chest radiography are indicative of left-sided heart failure, according to the Journal of the American College of Radiology 3

Pulmonary congestion resulting from elevated left atrial and pulmonary venous pressures is a sign of left-sided heart failure, as reported by the European Heart Journal 4
Tachycardia as a compensatory mechanism to maintain cardiac output is a common sign of left-sided heart failure, according to the Journal of the American College of Cardiology 2
Cardiomegaly visible on chest radiography is a sign of left-sided heart failure, as reported by the American College of Cardiology 1

Fatigue and decreased exercise tolerance due to reduced cardiac output and skeletal muscle perfusion are common symptoms of left-sided heart failure, according to the American College of Cardiology 1
Peripheral edema, particularly ankle swelling, resulting from fluid retention is a sign of left-sided heart failure, as reported by the American College of Cardiology 1

Cheyne-Stokes respiration, a periodic breathing pattern, is a sign of severe left-sided heart failure, as reported by the Journal of the American College of Cardiology 2
Cachexia, muscle wasting, in chronic advanced heart failure is a sign of severe left-sided heart failure, according to the American College of Cardiology 5

Left ventricular dysfunction leads to increased left ventricular filling pressures, as reported by the European Heart Journal 4
Elevated left atrial pressure causes pulmonary venous congestion, according to the Journal of the American College of Cardiology 2
Cardiac remodeling with chamber dilation and/or hypertrophy occurs as the disease progresses, as reported by the Journal of the American College of Cardiology 6

Symptoms alone are insufficient for diagnosis - objective evidence of cardiac dysfunction is required, according to the American College of Cardiology 1
Elevated B-type natriuretic peptide or NT-proBNP levels support the diagnosis of left-sided heart failure, as reported by the American College of Cardiology 1
A normal electrocardiogram has high negative predictive value for excluding left ventricular systolic dysfunction, according to the American College of Cardiology 1

The severity of symptoms may not correlate with the degree of cardiac dysfunction, as reported by the American College of Cardiology 1
Acute decompensation may be precipitated by medication non-compliance, dietary indiscretion, acute coronary syndromes, arrhythmias, infections, or uncontrolled hypertension, according to the Journal of the American College of Cardiology 2