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Published on: April 5, 2011
Electrocardiographic abnormalities in leptospirosis
Insights
Sub-clinical cardiac involvement is common in leptospirosis, affecting nearly half of patients. Electrocardiogram changes indicate myocardial issues, necessitating monitoring, especially in acute kidney injury cases.
Area of Science:
- Cardiology
- Infectious Diseases
- Internal Medicine
Background:
- Leptospirosis is a zoonotic infection with potential systemic complications.
- Cardiac involvement in leptospirosis is not well-characterized.
- Electrocardiographic (ECG) findings can indicate myocardial dysfunction.
Purpose of the Study:
- To investigate the prevalence and nature of electrocardiographic abnormalities in patients with leptospirosis.
- To assess the significance of these findings for sub-clinical cardiac involvement.
Main Methods:
- Retrospective analysis of electrocardiograms (ECG) from patients diagnosed with leptospirosis.
- Evaluation of ECG parameters including rhythm, P-QRS-T complexes.
- Correlation of ECG findings with clinical presentation and renal status.
Main Results:
- Electrocardiographic abnormalities were observed in 46% of leptospirosis cases.
- Abnormalities included cardiac rhythm disorders and alterations in P-QRS-T complexes.
- These changes suggest sub-clinical myocardial involvement.
Conclusions:
- Leptospirosis frequently causes sub-clinical cardiac involvement, detectable by ECG.
- Serial ECG monitoring is recommended for patients with acute renal failure (oliguric) and other presentations of leptospirosis to detect cardiac changes.
Abstract:
Electrocardiographic abnormalities occurred in 46 per cent of cases uith leptospirosis. Although the individual changes noted do not appear to be of importance, they indicate that sub-clinical cardiac involvement does occur in a significant proportion of the patients. The abnormalities observed include disorders in cardiac rhythm and changes in the P-QRS-T complexes, probably resulting from direct myocardial involvement or from a changing milieu interior. While serial tracings are indicated in patients with acute renal failure of the oliguric variety, repeated tracings may detect more definitely changing patterns which indicate the presence of cardiac involvement in patients with other presentations of the disease.
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