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Obesity Surgery

, Volume 19, Issue 3, pp 397–398 | Cite as

The Impact of Selection Criteria of Obese Patients on Evaluation of Heart Rate Variability Following Bariatric Surgery Weight Loss

  • Vincenzo RussoEmail author
  • Gerardo Nigro
  • Annabella de Chiara
  • Anna Rago
  • Raffaele Calabrò
Letter to the Editor

In a recent issue of Obesity Surgery, we read with interest the report of Machado and colleagues [1] about the effect of gastric bypass on cardiac autonomic activity, including influence of gender and age. The study showed, in 6 months follow-up after the gastric by-pass, a statistically significant increase in heart rate variability (HRV) during 24-h Holter monitoring in a group of 71 obese patients (42 women); this increase was more evident in men.

HRV is a non-invasive electrocardiographic marker reflecting the activity of the sympathetic and vagal components of the autonomic nervous system on sinus node function. It expresses the total amount of variations of instantaneous HR [2, 3]. Thus, HRV analyzes the tonic baseline autonomic function. A predominance of sympathetic tone in cardiac activity induces tachycardia and reduced beat-to-beat variations, whereas parasympathetic nerve activity reduces heart rate and increases HRV [4]. Spectral analysis of HRV has been used to explore...

Keywords

Gastric Bypass Heart Rate Variability Environmental Tobacco Smoke Induce Weight Loss Positive Airway Pressure Therapy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    Machado MB, Velasco IT, Scalabrini-Neto A. Gastric bypass and cardiac autonomic activity: influence of gender and age. Obes Surg. 2008 (Epub ahead of print).Google Scholar
  2. 2.
    Akselrod S, Eliash S, Oz O, et al. Hemodynamic regulation in SHR: investigation by spectral analysis. Am J Physiol 1987;253:H176–83.PubMedGoogle Scholar
  3. 3.
    Malliani A, Pagani M, Lombardi F, et al. Cardiovascular neural regulation explored in the frequency domain. Circulation 1991;84:482–92.CrossRefGoogle Scholar
  4. 4.
    Petersen ME, Williams TR, Gordon C, et al. The normal response to prolonged passive head up tilt testing. Heart 2000;84(5):509–14.CrossRefGoogle Scholar
  5. 5.
    Grubb BP, Calkins H, Rowe P. Postural tachycardia, orthostatic intolerance and chronic fatigue syndrome. In: Grubb B, Olshansky B, editors. Syncope: mechanisms and management. Malden, MA: Blackwell–Futura; 2005. p. 225–44.CrossRefGoogle Scholar
  6. 6.
    Poirier P, Eckel RH. The heart and obesity. In: Fuster V, Alexander RW, King S, O’Rourke RA, Roberts R, Wellens HJJ, editors. Hurst’s the heart. 10th ed. New York: McGraw-Hill; 2000. p. 2289–303.Google Scholar
  7. 7.
    Peterson HR, Rothschild M, Weinberg CR, et al. Body fat and the activity of the autonomic nervous system. N Engl J Med 1988;318:1077–83.CrossRefGoogle Scholar
  8. 8.
    Karason K, Molgaard H, Wikstrand J, et al. Heart rate variability in obesity and the effect of weight loss. Am J Cardiol 1999;83(8):1242–7.CrossRefGoogle Scholar
  9. 9.
    Heindl S, Lehnert M, Criée CP, et al. Marked sympathetic activation in patients with chronic respiratory failure. Am J Respir Crit Care Med 2001;164:597–601.CrossRefGoogle Scholar
  10. 10.
    Barutcu I, Esen AM, Kaya D, et al. Cigarette smoking and heart rate variability: dynamic influence of parasympathetic and sympathetic maneuvers. Ann Noninvasive Electrocardiol 2005;10(3):324–9.CrossRefGoogle Scholar
  11. 11.
    Felber Dietrich D, Schwartz J, Schindler C, et al. Effects of passive smoking on heart rate variability, heart rate and blood pressure: an observational study. Int J Epidemiol 2007;36(4):834–40.CrossRefGoogle Scholar
  12. 12.
    Monda M, Messina G, Vicidomini C, et al. Activity of autonomic nervous system is related to body weight in pre-menopausal, but not in post-menopausal women. Nutr Neurosci 2006;9(3–4):141–5.CrossRefGoogle Scholar
  13. 13.
    Russo V, De Crescenzo I, Ammendola E, et al. Impact of surgically induced weight loss on the cardiac autonomic nervous system in severe obesity (Abstract). G Ital Cardiol 2007;8(Suppl. 1, 12):188.Google Scholar

Copyright information

© Springer Science + Business Media, LLC 2008

Authors and Affiliations

  • Vincenzo Russo
    • 1
    Email author
  • Gerardo Nigro
    • 1
  • Annabella de Chiara
    • 1
  • Anna Rago
    • 1
  • Raffaele Calabrò
    • 1
  1. 1.Cardiology, Second University of NaplesMonaldi HospitalNaplesItaly

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