Home About us Editorial board Search Ahead of print Current issue Archives Submit article Instructions Subscribe Contacts Login 
Home Print this page Email this page
Users Online:3356
Year : 2015  |  Volume : 3  |  Issue : 1  |  Page : 8-11

Cardiac Autonomic Neuropathy and QTc Interval in Type 2 Diabetes

Department of Cardiology, Government Medical College, Kottayam, Kerala, India

Correspondence Address:
Jayaprasad Narayana Pillai
Department of Cardiology, Government Medical College, Kottayam - 686 008, Kerala
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2321-449X.153279

Rights and Permissions

Context: An association between cardiac autonomic neuropathy and QT interval prolongation was demonstrated in many studies and it may predispose to sudden death in diabetes mellitus. Aims: To find out the prevalence of cardiac autonomic neuropathy and its relation to QTc interval and QTc dispersion in type 2 diabetes. Settings and Design: Observational study. Materials and Methods: Fifty patients with type 2 diabetes mellitus of more than 5-years duration and 30 age- and sex-matched controls without any history of diabetes were selected. A battery of five autonomic function tests was done in all cases. Heart rate, QTc values, and QTc dispersion were measured and compared among patients with and without autonomic neuropathy and controls. Statistical analysis used: Students t test/Chi-square test. Results: Among the 50 patients in the study population, 21 (42%) had severe autonomic neuropathy and 12 (24%) had early autonomic neuropathy. Mean heart rate was significantly more in patients with autonomic neuropathy than those without neuropathy. Diabetics with autonomic neuropathy had significantly higher QTc mean and QTc max values compared to diabetics without autonomic neuropathy and controls. QTc dispersion was significantly more among patients with autonomic neuropathy compared to those without autonomic neuropathy and controls. Conclusions: Diabetic autonomic neuropathy is associated with increase in resting heart rate and prolongation of QTc intervals. QTc max was correlating with severity of autonomic neuropathy. QTc dispersion is significantly high in diabetes mellitus with autonomic neuropathy.

Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded540    
    Comments [Add]    
    Cited by others 4    

Recommend this journal