Research Article

Relationship between Left Ventricular End-Systolic Pressure-Volume Ratio and Segmental Contraction Disorders in Coronary Artery Diseases

Volume: 39 Number: 1 March 31, 1986
Olcay Sağkan *
TR EN

Relationship between Left Ventricular End-Systolic Pressure-Volume Ratio and Segmental Contraction Disorders in Coronary Artery Diseases

Abstract

The ratio of end•systolic pressure to end•systolic volume : The relationship of this ratio with the length of the abnormally contracting segments in patients with coronary artery disease Eight normal and 28 patients with coronary artery disease presenting abnormal left ventricular contraction were studied. İt was found that systolic peak pressure to end-systolic volume (SPP/ESV) and end-systolic pressure to end-systolic volüme (ESP/ ESV) ratios and ejection fraction (EF) decreased significantly in patients with coronary artery disease when compared with the normals (PI < 0.001; P2 < 0.001; -Pg < 0.001) respectively. In the coronary artery patients the percent of abnormally contracting segments (ACS % ) was compared statistically with SPP/ESV and ESP/ESV ratios and EF. Results were statistically significant (PI < 0.001; P2 < 0.001; P3 < 0.001). In 19 ( % 68) patients showing EF less than 0.50, ACS % was above 20 % and in 3 (11 70) patients it was less than 20 020. In 21 (75 % ) patients when the SPP/ESV ratio was less than 3 and the ESP/ESV ratio was less than 2 the ASC % was above 20 To; and in 2 (7 % ) patients was below 20 %. This showed that SPP may be used instead of ESP. It is estimated that in patients with coronary artery disease SPP/ ESV and ESP/ESV ratios are helpful in the estimation of the ACS % and by the way the impairement of the left ventricular contractility.

Keywords

ventrikül, sistol, fraksiyon

References

  1. 1. Borow M.K., Alexander N., Wynne J. : Sensitivity of end-systolic pressure vo lume relations to the inotropic state in humans. Circulation 65 : 988, 1982.
  2. 2. Carebello Be, Spann J.F. : The uses and limitations of end-systolic indexes of left ventricular function Circulation 65 ; 1059, 1984.
  3. 3. Dodge H.T. Sandler H., Ballew D.W. ve ark. : The use of biplane angiocardiog raphy for the measurement of left ventricular volume in man. Amor. Heart J. 60 : 762, 1960.
  4. 4. Dodge H.T., Sandler H., Baxley W.A. ve ark. Usefulness and limitations of radiographic methods for determining left ventricular volume. Amer. J. Cardiol. 18 : 10, 1986.
  5. 5. Field B.J., Russel R.O. Jr., Dowling J.T. ve ark Regional left ventricular performance in the year following myocardial infarction. Circulation 46 : 679, 1972,
  6. 6. Greene G.D., Carlishe R, Grant C. ve ark. : Estimation of left ventricular volume by one plane cineangiography. Circulation 35 : 61, 1967. 7. Grossman W., Eugene B., Mann T. ve ark. Contractile state of left ventricle in man as evaluated from-systolic pressure-volume relations. Circulation 56 845, 1977.
  7. 8. Harmen M.V., Heinle R.A., Klein M.D. ve ark. : Localized disorders in myocardial contraction, New Eng. J. Med. 277 : 222, 1967.
  8. 9. Holt J.P. : Regulation of the degree of emptying of the left ventricle by the force of ventricular contraction. Circ. Res. 5 : 281, 1957.
  9. 10. Iskandrian S.A., Hakkl H., Bemis E.C. ve ark. : Left ventricular end-systolic pressure-volume relation. A combined rädionuclide and hemodynamic study. Amer. J. Cardiol. 51 1057, 1983.
  10. 11. Mahler F., Cowell J.W., Ross J. Jr. : Systolic pressure-diameter relations in the normal conscious dog. Cardiovasc. Res. 9 : 447, 1975.
APA
Sağkan, O. (1986). Relationship between Left Ventricular End-Systolic Pressure-Volume Ratio and Segmental Contraction Disorders in Coronary Artery Diseases. Ankara Üniversitesi Tıp Fakültesi Mecmuası, 39(1), 35-46. https://izlik.org/JA99DU26AZ
AMA
1.Sağkan O. Relationship between Left Ventricular End-Systolic Pressure-Volume Ratio and Segmental Contraction Disorders in Coronary Artery Diseases. Ankara Üniversitesi Tıp Fakültesi Mecmuası. 1986;39(1):35-46. https://izlik.org/JA99DU26AZ
Chicago
Sağkan, Olcay. 1986. “Relationship Between Left Ventricular End-Systolic Pressure-Volume Ratio and Segmental Contraction Disorders in Coronary Artery Diseases”. Ankara Üniversitesi Tıp Fakültesi Mecmuası 39 (1): 35-46. https://izlik.org/JA99DU26AZ.
EndNote
Sağkan O (March 1, 1986) Relationship between Left Ventricular End-Systolic Pressure-Volume Ratio and Segmental Contraction Disorders in Coronary Artery Diseases. Ankara Üniversitesi Tıp Fakültesi Mecmuası 39 1 35–46.
IEEE
[1]O. Sağkan, “Relationship between Left Ventricular End-Systolic Pressure-Volume Ratio and Segmental Contraction Disorders in Coronary Artery Diseases”, Ankara Üniversitesi Tıp Fakültesi Mecmuası, vol. 39, no. 1, pp. 35–46, Mar. 1986, [Online]. Available: https://izlik.org/JA99DU26AZ
ISNAD
Sağkan, Olcay. “Relationship Between Left Ventricular End-Systolic Pressure-Volume Ratio and Segmental Contraction Disorders in Coronary Artery Diseases”. Ankara Üniversitesi Tıp Fakültesi Mecmuası 39/1 (March 1, 1986): 35-46. https://izlik.org/JA99DU26AZ.
JAMA
1.Sağkan O. Relationship between Left Ventricular End-Systolic Pressure-Volume Ratio and Segmental Contraction Disorders in Coronary Artery Diseases. Ankara Üniversitesi Tıp Fakültesi Mecmuası. 1986;39:35–46.
MLA
Sağkan, Olcay. “Relationship Between Left Ventricular End-Systolic Pressure-Volume Ratio and Segmental Contraction Disorders in Coronary Artery Diseases”. Ankara Üniversitesi Tıp Fakültesi Mecmuası, vol. 39, no. 1, Mar. 1986, pp. 35-46, https://izlik.org/JA99DU26AZ.
Vancouver
1.Olcay Sağkan. Relationship between Left Ventricular End-Systolic Pressure-Volume Ratio and Segmental Contraction Disorders in Coronary Artery Diseases. Ankara Üniversitesi Tıp Fakültesi Mecmuası [Internet]. 1986 Mar. 1;39(1):35-46. Available from: https://izlik.org/JA99DU26AZ