López CMR, Reyes TGJ, Díaz AAE, Escobar BC, Díaz-Araúzo H, Solís JBA

Language: Spanish
References: 39
Page: 80-86
PDF size: 121.38 Kb.

ABSTRACT

A study was completed on 46 healthy with normal demographic characteristics volunteers averaging 19 years old ranging between 18 and 22 years old. The volunteers are students of medicine from “Universidad Nacional Autónoma de México” (UNAM). During the study it was measured in parallel the arterial pressures and the heart frequency during 24 hours. The measures were made individually and personally every three hours under normal activities starting at 8:00 hours. The arterial pressure and heart rate were used to determine the medium pressure and heart work. The arterial pressures, heart rate, medium pressure and heart work were then analyzed. Based on the result it was three different levels of circadian rhythm or sinusoidal behaviors: 1) High fit to a sinusoidal oscillation; eight cases. 2) Moderate fit to a sinusoidal oscillation; thirty-one cases. 3) Without sinusoidal oscilliation; seven cases. In general, it was observed that circadian oscillation of the systemic pressure increase in the morning averaging 3.3 mmHg, between 8:00 am and 14:00 hours, and a decrease at night averaging 10.6 mmHg between 23:00 and 5:00 am. In addition, the diastolic pressure was observed was more stable than the systemic arterial pressure. The work heart and the medium pressure decreased between 23:00 and 5:00 hours, averaging 8 mmHg and 1,497 mmHg/lat/min and 8 mmHg respectively. In conclusion, the circadian rhythm of the systemic arterial, pressure of perfusion (medium pressure) and the heart work in our study on younger people than 20 years old are similar those found it in the literature in healthy adults that initiated the ageing in the cardiovascular process.

REFERENCES

1. Cardinali DP. Características de los ritmos biológicos: Fisiología humana de JAF. Tresquerres Segunda Edición. Mac Graw-Hill Interamericana Madrid; 1135- 1999.

2. Aguilar RR. Teorías básicas de los ritmos biológicos. Psiquis 1993; 2(6): 121-132.

3. Aréchiga HU, del Campo LAM. Los ritmos circadianos en medicina. Cronobiología médica. Editor Searle de México 1999; Tomo 1: 11.

4. Millar-Craig MW, Bishop CN, Roffery EB. Circadian variation of blood pressure. Lancet 1978; 1(8068): 795-797. (Contributions).

5. Hermida RC, Ayala DE, Mojón R, Fernández JR, Alonso I, Silva I et al. Blood pressure patterns in normal pregnancy, gestational hypertension, and preeclampsic. Hypertension 2000; (36): 149-158. (Scientific Contributions).

6. Coca A. Circadian rhythm and blood pressure control: physiological and pathophysiological factors. J Hypertension 1994; 12(Suppl 5): 513-521.

7. Rodríguez C, Revilla Ma, Revilla E, Cornelissen G, Aréchiga H, Halberg F. El perfil cronobiológico de la tensión arterial y de frecuencia cardiaca en un grupo familiar determinado mediante monitorización automática. Gac Med Mex 1998; 143: 15-25.

8. Kario K, Shimada K. Nocturnal change of heart rate and diurnal blood pressure rhythm. Lancet 1994; 344(3): 1573-73.

9. Stewart I, Mcd G, Knapp MS, Raftery EF. Circadian variation in blood pressure. Lancet 1978; 1(8073): 1210-1.

10. De Plaen JF. Blood pressure rhythm. Ann Intern Med 1991; 114(10): 914-15.

11. Conway J. Blood pressure and heart rate variability. J Hypertension 1986; 4(3): 163-261.

12. Flora JP. Matinal blood pressure. Am J Hypertens 1992; 5(6PEI): 411-413.

13. Littler WA. Sleep and blood pressure: further observations. Am Heart J 1979; 97: 35-37.

14. Mann S, Altman DG, Raftery EB, Bannister R. Circadian variation of blood pressure in autonomic failure-pathophysiology and natural history hypotension. Circulation 1983; 68(3): 477-483.

15. Khoury AF, Sunderrrajan P, Kaplan NM. The early morning rise in blood pressure is related mainly to ambulation Am J Hypertens 1992; 5: 339-344.

16. Gerbes AL, Haen E, Arbogast B. Analysis of circadian blood pressure rhythm. Brit Heart J 1985; 53(5): 578-579.

17. Portaluppi F, Smolensky MH Eds. Time-dependent and control of arterial blood pressure. Ann NY Acad Sci 1996; 783: 342-42.

18. Portaluppi F, Smolensky MH. Circadian rhythm and environmental determinants of blood pressure regulation in normal and hypertensive conditions. In: Blood pressure monitoring in cardiovascular medicine and therapeutics; White WB, Ed. Totowa NJ, Humana Press 2000: 79-118.

19. Pastelín HG. Cronobiología en cardiología. En: del Campo LAM, Aréchiga HH. Cronobiología médica. Searle de México, México 1999: 99-114.

20. Muller JE, Stone PH, Turi ZG. Circadian variation in the frequency of onset of acute myocardial infarction. N Engl Med 1985; 313: 1315-1322.

21. Willich SN, Levy D, Rocco MB. Circadian variation in the incidence of sudden cardiac death in the Framingham Heart Study population. Am J Cardiol 1987; 60: 801-806.

22. Willich SN, Lowel H, Lewis M, and the TRIMM Study Group. Association of wake time and the onset of myocardial infarction. Circulation 1991; 84: VI-62-67.

23. Halberg F. Quo Vadis basic and Clinical Chronobiology: Promise for Health maintenance. Am J Anatomy 1983; 168: 453-494.

24. Mora-Marcia J, González-Juanatey JR, Rendón J, Roca-Cusachs A, Lehera V, Poch-López de Briñas E. Representación gráfica y análisis de los ritmos circadianos. Método cosinor y análisis de Fournier IMPA. En: Incremento matutino de la presión arterial. Aspectos fisiológicos y clínicos. Boehringer Ingelheim España S.A. Barcelona. 2000: 16-23.

25. Marsh EE, Biller J, Adams HP Jr. Circadian variation in onset of acute ischemic stroke. Arch Neurol 1990; 47: 1178-1180.

26. Furlan R, Guzzetti S, Crivellano W. Continuous 24-h-assessment of neural regulation of systemic arterial pressure and R-R variations in ambulant subjects. Circulation 1990; 81: 537-547.

27. Hakberg F, Drayer JIM, Cornelissen G, Weber MA. Cardiovascular reference database for recognizing circadian mesor-and amplitude-hypertension and apparently healthy man. Chronobiologia 1984; 11: 275-298.

28. Pickering TG. The influence of daily activity on ambulatory blood pressure. Am Heart J 1988; 116: 1141-1145.

29. Bingham C, Arbogast B, Guillaume GC, Lee JK, Halberg F. Interferencial statistical methods for estimating and comparing casinor parameters. Chronobiologia 1982; 11: 397-439.

30. Berne RM, Levy MN. Mean arterial pressure. In: Cardiovascular Physiology. Second Edition. CV Mosby Co. Saint Louis 1972; Chapter 5: 89.

31. Gayton AC, Hall JE. La circulación. En: Tratado de fisiología médica. Ed. IV; capítulo 5, décima edición. Editorial McGraw-Hill Interamericana México: 200: 14; 190.

32. Hermida RC, Fernández JR, Ayala DE, Mojón A, Alonso A, Smolensky M. Circadian rhythm of double (Rate Pressure) product in healthy normotensive young subjects. Chronobiology International (Chronobiol. Int.) 2001; 18(3): 475-479

33. Bingham C, Cornelissen GG, Halberg E, Halberg F. Testing period for single cosinor. Extente of human 24-h cardiovascular synchronization on ordinary routine. Chronobiologia 1984; 11; 263-274.

34. Second Task Force on Blood Pressure Control in Children in 1987. Pediatrics 1987; 79: 1.

35. Anderson. Cardiac catheterization and angiocardiography. In: Anderson RH, McCartney FJM, Shineborne EA, Tynan M. Pediatric cardiology. Churchill Livingstone, London, New York 1987.

36. Von Dongen HPA, Maislin G, Kerkhof GA. Repeated assessment of the endogenous 24-hour profile of blood pressure under constant routine. Chronobiology Intern 2001; 18(1): 85-98.

37. Somers VK, Dyken ME, Mark AL, Sympathetic nerve activity during sep in normal subjects. N Engl J Med 1993; 328(5): 303-7.

38. Fuster V, Alexander RW, O’Rourke RA eds. Cardiovascular aging in health and therapeutic considerations in older patients with cardiovascular diseases. Fuster V, Alexander RW, O’Rourke RA. In: Hurst’s the heart. 10th. Edition McGraw-Hill Companies, Inc. New York: 2001; Chapter 90: 2329-2344.

39. Geneser F. Aparato circulatorio. En: Histología sobre bases moleculares. Cap. 15 3a Ed. Editorial Médica Panamericana, Buenos Aires, Bogotá, Caracas, México, São Paulo 2000: 381.