Abstract:
Background: The characterization of the dynamic process of veins walls is essential to understand venous functioning under normal and pathological conditions. However, little work has been done on dynamic venous properties. Aim: To characterize vein compliance (C), viscosity (η), peak-strain (WSt) and dissipated (WD) energy, damping (ξ), and their regional differences in order to evaluate their role in venous functioning during volume-pressure overloads. Methods: In a mock circulation, pressure (P) and diameter (D) of different veins (anterior cava, jugular and femoral; from 7 sheep), were registered during cyclical volume-pressure pulses. From the P-D relationship, C, WSt and ξ (at low and high P-D levels), η and WD were calculated. Results: For each vein there were P-dependent differences in biomechanical, energetics, and damping capability. There were regional-differences in C, η, WSt and WD (p<0.05), but not in ξ. Conclusion: The regional-dependent differences in dynamics and energetics, and regional-similitude in damping could be important to ensure venous functioning during acute overloads. The lower C and higher WSt and WD found in back-limb veins (femoral), commonly submitted to high volume-pressure loads (i.e. during walking), could be considered relevant to ensure adequate venous system functionality and venous wall protection simultaneously.
Registro:
| Documento: |
Artículo
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| Título: | Regional differences in veins wall viscosity, compliance, energetics and damping: Analysis of the pressure-diameter relationship during cyclical overloads |
| Autor: | Zócalo, Y.; Santana, D.B.; Lluberas, S.; Armentano, R.L. |
| Filiación: | Departamento de Fisiología, Facultad de Medicina, Universidad de la República, General Flores 2125, Montevideo, Uruguay
Facultad de Ingeniería Ciencias Exactas y Naturales, Universidad Favaloro, Solís 453, C1078AAI Buenos Aires, Argentina
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| Idioma: |
Inglés
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| Palabras clave: | Compliance; Damping; Energetic; Vascular physiology; Venous wall; Viscosity; animal tissue; article; bioenergy; biomechanics; blood vessel function; cava vein; femoral vein; jugular vein; mechanical stress; nonhuman; pressure volume curve; sheep; vein compliance; vein diameter; vein wall; venous circulation; viscosity; Animals; Biomechanics; Blood Pressure; Blood Volume; Compliance; Femoral Vein; Jugular Veins; Sheep; Vena Cava, Inferior; Viscosity; Ovis aries |
| Año: | 2008
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| Volumen: | 41
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| Número: | 2
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| Página de inicio: | 227
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| Página de fin: | 233
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| Título revista: | Biological Research
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| Título revista abreviado: | Biol. Res.
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| ISSN: | 07169760
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| CODEN: | BESEE
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| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07169760_v41_n2_p227_Zocalo |
Referencias:
- ALEXANDER, R.S., The peripheral venous system (1963) Handbook of physiology, pp. 1075-1098. , HAMILTON WF, DOW P eds, Baltimore, Maryland: Waverly Press Inc, pp
- ANLIKER, M., YATES, W.G., OGDEN, E., Transmission of small pressure waves in the canine vena cava (1971) Am J Physiol, 221, pp. 644-651
- ARMENTANO, R.L., BARRA, J.G., SANTANA, D.B., PESSANA, F.M., GRAF, S., CRAIEM, D., BRANDANI, L.M., SANCHEZ, R.A., Smart damping modulation of carotid wall energetics in human hypertension: Effects of angiotensin-converting enzyme inhibition (2006) Hypertension, 47, pp. 384-390
- BIA, D., ARMENTANO, R., CRAIEM, D., GRIGNOLA, J., GINES, F., SIMON, A., LEVENSON, J., Smooth muscle role on pulmonary arterial function during acute pulmonary hypertension in sheep (2004) Acta Physiol Scand, 181, pp. 359-366
- BIA, D., AGUIRRE, I., ZÓCALO, Y., DEVERA, L., CABRERA FISCHER, E., ARMENTANO, R., Regional differences in viscosity, elasticity and wall buffering function in systemic arteries: Pulse wave analysis of the arterial pressure-diameter relationship (2005) Rev Esp Cardiol, 58, pp. 167-174
- BRADLEY, J.G., DAVIS, K.A., Orthostatic hypotension (2003) Am Fam Physician, 68, pp. 2393-2398
- FREEMAN, R., LIROFONIS, V., FARQUHAR, W.B., RISK, M., Limb venous compliance in patients with idiopathic orthostatic intolerance and postural tachycardia (2002) J Appl Physiol, 93, pp. 636-644
- HOLTZ, J., Peripheral circulation: Fundamental concepts, comparative aspects of control in specific vascular sections, and lymph flow (1996) Comprehensive human physyiology. From cellular mechanisms to integration, pp. 1865-1915. , GREGER R, WINDHORST U, eds, Berlin Heidelberg, Springer-Verlag, pp
- MONOS, E., BERCZI, V., NADASY, G., Local control of veins: Biomechanical, metabolic, and humoral aspects (1995) Physiol Rev, 75, pp. 611-666
- NIPPA, J.H., ALEXANDER, R.H., FOLSE, R., Pulse wave velocity in human veins (1971) J Appl Physiol, 30, pp. 558-563
- OLSEN, H., VERNERSSON, E., LANNE, T., Cardiovascular response to acute hypovolemia in relation to age. Implications for orthostasis and hemorrhage (2000) Am J Physiol Heart Circ Physiol, 278, pp. H222-H232
- SILVER, F.H., SNOWHILL, P.B., FORAN, D.J., Mechanical behavior of vessel wall: A comparative study of aorta, vena cava, and carotid artery (2003) Ann Biomed Eng, 31, pp. 793-803
- ZÓCALO, Y., PESSANA, F., BIA, D., ARMENTANO, R., Regional differences in vein wall dynamics under arterial haemodynamic conditions (2006) Artif Organs, 30, pp. 265-275
Citas:
---------- APA ----------
Zócalo, Y., Santana, D.B., Lluberas, S. & Armentano, R.L.
(2008)
. Regional differences in veins wall viscosity, compliance, energetics and damping: Analysis of the pressure-diameter relationship during cyclical overloads. Biological Research, 41(2), 227-233.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07169760_v41_n2_p227_Zocalo [ ]
---------- CHICAGO ----------
Zócalo, Y., Santana, D.B., Lluberas, S., Armentano, R.L.
"Regional differences in veins wall viscosity, compliance, energetics and damping: Analysis of the pressure-diameter relationship during cyclical overloads"
. Biological Research 41, no. 2
(2008) : 227-233.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07169760_v41_n2_p227_Zocalo [ ]
---------- MLA ----------
Zócalo, Y., Santana, D.B., Lluberas, S., Armentano, R.L.
"Regional differences in veins wall viscosity, compliance, energetics and damping: Analysis of the pressure-diameter relationship during cyclical overloads"
. Biological Research, vol. 41, no. 2, 2008, pp. 227-233.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07169760_v41_n2_p227_Zocalo [ ]
---------- VANCOUVER ----------
Zócalo, Y., Santana, D.B., Lluberas, S., Armentano, R.L. Regional differences in veins wall viscosity, compliance, energetics and damping: Analysis of the pressure-diameter relationship during cyclical overloads. Biol. Res. 2008;41(2):227-233.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07169760_v41_n2_p227_Zocalo [ ]
