A STUDY ON PREVALENCE OF CARDIOVASCULAR AUTONOMIC NEUROPATHY IN TYPE 2 DIABETES AND UTILITY OF CORRECTED QT INTERVAL FOR ITS DIAGNOSIS

Dr. Pranavi Vanga, Dr. Mohammed Ghouse Shaik

Abstract


Background: cardiovascular autonomic neuropathy (CAN) in diabetes is a common but often under diagnosed &
underestimated. CAN is associated with increased mortality , silent myocardial infarction ,left ventricular dysfunction,
chronic kidney disease. Early recognition of CAN will help to delay or arrest its progression
Methods: A cross-sectional study to evaluate the Prevalence of CAN in Type 2 diabetes & correlate it with duration of
Diabetes and to investigate the relationship between cardiac autonomic dysfunction & QTc
Results: Prevalence of definite CAN was 8%, 24% and 58% in group A, B and C of study population respectively and also
prevalence increases with increase in duration of diabetes. P value <0.001 significant
Conclusions: A significant correlation is present between CAN & QTc prolongation. QTc interval in the ECG can be
used to diagnose CAN with a reasonable sensitivity & specificity


Keywords


cardiovascular autonomic neuropathy - CAN , heart rate variability- HRV, Blood pressure- B.P , corrected QT interval- QTc

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