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Systolic Time Intervals — What Do They Really Measure?

  • W. F. List
Part of the European Academy of Anaesthesiology book series (ANAESTHESIOLOGY, volume 2)

Abstract

Heart function depends on electrical impulses and conduction, on loading conditions, contractility and valvular function. An ECG makes electrical impulses and conduction visible and is the single most important noninvasive monitoring parameter of the heart. However, it does not give any data on myocardial function or contractility. Severely disturbed myocardial function such as decompensation of the heart can be detected from clinical signs; jugular palpitation, tachycardia or ankle oedema, but myocardial function is difficult to measure. We would like to know of the patient’s heart has reached its limits or whether there is still a functional reserve, whether heart function is improving under digitalis or after coronary surgery.

Keywords

Myocardial Function Aortic Valve Disease Electrical Impulse Systolic Time Interval Coronary Surgery 
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.

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References

  1. 1.
    Sonnenblick EH (1978) General principles of cardiac function. In: Haemodynamic changes in anesthesia, Vol I. 5th Eur Cong Anaesthesiol 4.–9. Sept 1978. pp 39–46.Google Scholar
  2. 2.
    Mason DT (1969) Usefulness and limitations of the rate of rise of intraventricular pressure (dp/dt) in evaluation of myocardial contractility in man. Am J Cardiol 23:427–516.Google Scholar
  3. 3.
    List WF, Gravenstein JS, Spodick DH (eds) (1980) Systolic time intervals, Springer, Berlin Heidelberg New York.Google Scholar
  4. 4.
    Weissler AM, Garrad CL (1971) Systolic time intervals in cardiac disease. Mod Concepts Cardiovasc Dis 1:1–8.Google Scholar
  5. 5.
    Gleichmann U, Bistreami I, Mannebach J et al. (1980) In: List WF, Gravenstein JS, Spodick DH (eds) Systolic time intervals. Springer, Berlin Heidelberg New York.Google Scholar
  6. 6.
    List WF (1978) Monitoring of myocardial function with systolic time intervals. Acta Anaesthesiol Belg 29:271–285.PubMedGoogle Scholar
  7. 7.
    Dauchot PJ, Rasmussen JP, Nicholson DH et al. (1976) On-line systolic time intervals during anesthesia in patients with and without heart disease. Anesthesiology 44:6.CrossRefGoogle Scholar
  8. 8.
    Johnson O, O’Rourke RA (1971) Effect of myocardial revascularisation on STI in patients with left ventricular dysfunction. Circulation 44:103.Google Scholar
  9. 9.
    Haraphongse M, Basualdo CAE, Fraser RS, Rossall RE (1976) The assessment of function of left ventricle and patency of aortocoronary by-pass after operation. J Thorac Cardiovasc Surg 72:269–275.PubMedGoogle Scholar
  10. 10.
    Boudoulas H, Lewis RP, Vasko JS, Karayannacos PE, Beaver BM (1976) Left ventricular function and adrenergic hyperactivity before and after saphenous vein bypass. Circulation 53:802–806.PubMedGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1982

Authors and Affiliations

  • W. F. List

There are no affiliations available

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