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. 2017 Sep-Oct;21(5):715-718.
doi: 10.4103/ijem.IJEM_448_16.

Arrhythmias in Type 2 Diabetes Mellitus

Gaurav Agarwal  1 , Satish Kumar Singh  1
Affiliations

Arrhythmias in Type 2 Diabetes Mellitus

Gaurav Agarwal et al. Indian J Endocrinol Metab. 2017 Sep-Oct.

Abstract

Chronic hyperglycaemia of Type 2 diabetes mellitus causes long term damage to heart resulting in coronary artery disease (CAD), myocardial infarction (MI), congestive heart failure (CHF), and sudden death from arrhythmias.

Aims: To study the prevalence of different types of arrhythmias in T2DM, particularly in association with Cardiac Autonomic Neuropathy (CAN).

Methods: A cross-sectional study including 100 patients of Type 2 Diabetes Mellitus (T2DM) presenting with cardiac arrhythmias, was done at our hospital over 2 years. Detailed history along with physical examination and tests for CAN were done. Routine investigations along with echocardiography, stress test, Holter monitoring were done.

Results: Sinus Tachycardia (ST) was the commonest arrhythmia, found in 32% of patients. 20% had Complete Heart Block (CHB), 15% had Sinus Bradycardia (SB), and 15% had Atrial Fibrillation (AF). Ventricular Premature Complex (VPC) was found in 10% and 3% had Atrial Premature Complex (APC). 3% had first degree AV block, whereas 1% had Paroxysmal Supra Ventricular Tachycardia (PSVT), and another 1% had Ventricular Tachycardia (VT). Poorly controlled diabetes and co-morbidities was associated with higher incidence of arrhythmias. 62% of patients had prolonged QTc, majority of which had CAN. Most of the patients responded to standard therapy.

Keywords: Arrythmias; QTc interval; cardiac autonomic neuropathy; type 2 diabetes mellitus.

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Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1
Figure 1
Frequency of different types of arrythmias
Figure 2
Figure 2
Distribution of different arrhythmias according to HBA1c level
Figure 3
Figure 3
Co-morbidities in the study sample
Figure 4
Figure 4
Age distribution of study sample
Figure 5
Figure 5
Patients with prolonged QTc and cardiac autonomic neuropathy
Figure 6
Figure 6
Patients with normal QTc and cardiac autonomic neuropathy
See this image and copyright information in PMC

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