ArticleCureus2025
Electrocardiographic Abnormalities in Patients With Leptospirosis: A Clinical Observational Study.
Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
5 authors.
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Abstract
backgroundLeptospirosis is a globally prevalent zoonotic disease with diverse clinical manifestations, including potentially significant cardiovascular involvement. Electrocardiography (ECG) represents a convenient, cost-effective tool for detecting early myocardial and conduction abnormalities in affected patients.
methodsIn this observational study, 108 serologically confirmed leptospirosis patients underwent standard 12-lead ECG recording upon admission. Demographic characteristics, serum sodium, and potassium levels were documented. Patients with pre-existing cardiac disease were excluded. ECG abnormalities were categorized, and their distribution was analyzed using descriptive statistics and correlation tests where appropriate.
resultsThe mean age of the cohort was 34 ± 4.76 years with equal sex distribution. Fourteen patients (13%) died, and 43 (40%) required ICU admission. Hyponatremia (mean = 132 mEq/L) and hypokalemia (mean = 3.1 mEq/L) were common. ECG abnormalities were observed in a majority of patients, with non-specific ST-T changes and myocarditis-like patterns being most frequent, followed by left ventricular hypertrophy-like changes with sinus tachycardia, atrial fibrillation, and primary atrioventricular (AV) block. QTc prolongation was uncommon. Myocarditis-pattern ECG changes showed a significant association with disease severity.
conclusionECG abnormalities are common in leptospirosis and may serve as early markers of myocardial involvement and disease severity. Routine ECG evaluation, particularly in severe disease or electrolyte derangement, can assist in timely management. Further studies integrating echocardiography and long-term outcomes are needed to delineate the prognostic value of these findings.
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