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Indian J Endocrinol Metab. 2011 Jul;15(3):198-203. doi: 10.4103/2230-8210.83406.

Autonomic nervous system function in type 2 diabetes using conventional clinical autonomic tests, heart rate and blood pressure variability measures.

Indian journal of endocrinology and metabolism

S Sucharita, Ganapathi Bantwal, Jyothi Idiculla, Vageesh Ayyar, Mario Vaz

Affiliations

  1. Department of Physiology, St. John's Medical College and Hospital, Bangalore, India.

PMID: 21897898 PMCID: PMC3156541 DOI: 10.4103/2230-8210.83406

Abstract

BACKGROUND: There are currently approximately 40.9 million patients with diabetes mellitus in India and this number is expected to rise to about 69.9 million by the year 2025. This high burden of diabetes is likely to be associated with an increase in associated complications.

MATERIALS AND METHODS: A total of 23 (15 male and 8 female) patients with type 2 diabetes of 10-15 years duration and their age and gender matched controls (n=23) were recruited. All subjects underwent detailed clinical proforma, questionnaire related to autonomic symptoms, anthropometry, peripheral neural examination and tests of autonomic nervous system including both conventional and newer methods (heart rate and blood pressure variability).

RESULTS: Conventional tests of cardiac parasympathetic and sympathetic activity were significantly lower in patients with diabetes compared to the controls (P<0.05). The diabetic patients group had significantly lower high frequency and low-frequency HRV when expressed in absolute units (P<0.05) and total power (P<0.01) compared to the controls.

CONCLUSION: Data from the current study demonstrated that diabetics had both cardiac sympathetic and cardiac parasympathetic nervous system involvement. The presence of symptoms and involvement of both components of the autonomic nervous system suggest that dysfunction has been present for a while in these diabetics. There is a strong need for earlier and regular evaluation of autonomic nervous system in type 2 diabetics to prevent further complications.

Keywords: Autonomic; diabetes; heart rate; neuropathy; variability

References

  1. Clin Physiol Funct Imaging. 2002 Nov;22(6):404-8 - PubMed
  2. Int J Cardiol. 1995 Jun 30;50(2):117-24 - PubMed
  3. J Postgrad Med. 1981 Jan;27(1):1-6 - PubMed
  4. Am Heart J. 1993 Mar;125(3):726-31 - PubMed
  5. Diabetes Care. 2001 Feb;24(2):250-6 - PubMed
  6. J Clin Pharm Ther. 2002 Apr;27(2):85-92 - PubMed
  7. Diabetes Res Clin Pract. 1995 Dec;30(3):211-21 - PubMed
  8. Circ Res. 1986 Aug;59(2):178-93 - PubMed
  9. Circulation. 2003 May 6;107(17):2190-5 - PubMed
  10. Annu Rev Med. 1999;50:249-61 - PubMed
  11. Neurology. 1993 Apr;43(4):817-24 - PubMed
  12. J Appl Physiol (1985). 1997 Jul;83(1):160-5 - PubMed
  13. Physiol Meas. 2002 May;23(2):347-54 - PubMed
  14. Diabetologia. 2000 May;43(5):561-70 - PubMed
  15. Circulation. 1996 Mar 1;93(5):1043-65 - PubMed
  16. Diabet Med. 1992 Mar;9(2):166-75 - PubMed
  17. Am J Cardiol. 2000 Aug 1;86(3):309-12 - PubMed
  18. Circulation. 1992 Jan;85(1):164-71 - PubMed
  19. J Assoc Physicians India. 1976 Feb;24(2):89-93 - PubMed
  20. Indian J Physiol Pharmacol. 2007 Jul-Sep;51(3):303-5 - PubMed
  21. Diabetes Care. 2006 Feb;29(2):340-4 - PubMed
  22. Jpn Heart J. 2002 Mar;43(2):127-35 - PubMed
  23. Br Heart J. 1995 Jun;73(6):517-22 - PubMed
  24. Am J Epidemiol. 2003 Jul 15;158(2):135-43 - PubMed
  25. Cleve Clin J Med. 2001 Nov;68(11):928-30, 932, 934-44 - PubMed
  26. Diabetologia. 1998 Apr;41(4):416-23 - PubMed
  27. J Am Coll Cardiol. 1998 Mar 1;31(3):593-601 - PubMed
  28. Biol Psychol. 2007 Feb;74(2):224-42 - PubMed

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