The present investigation was performed to study coronary blood flow along with other indices of cardiac activity in subjects exposed to short-term noise. The study was carried out on 10 normal-hearing individuals suffering from Variant Angina of Prinzmetal. The acoustic stimuli consisted of 100 dB (A) broad-band noise, lasting 30 s. The following parameters were examined: ECG (D1, D2 and D3) and heart-rate by means of electrocardiographic recording, left ventricular systolic pressure (LVSP), left ventricular end diastolic pressure (LVEDP) and dP/dT max by means of arterial catheterization, and coronary blood flow by means of the thermodilution method. The results, statistically evaluated by means of multiple comparison test and t-test, did not reveal any significant modifications in the ECG traces, LVEDP, or dP/dT max. The transitory and moderate variations of LVSP and heart rate were not reflected in coronary blood flow, which remained unchanged during and after noise exposure.

Myocardial activity during noise exposure

COLLETTI, Vittorio;
1987-01-01

Abstract

The present investigation was performed to study coronary blood flow along with other indices of cardiac activity in subjects exposed to short-term noise. The study was carried out on 10 normal-hearing individuals suffering from Variant Angina of Prinzmetal. The acoustic stimuli consisted of 100 dB (A) broad-band noise, lasting 30 s. The following parameters were examined: ECG (D1, D2 and D3) and heart-rate by means of electrocardiographic recording, left ventricular systolic pressure (LVSP), left ventricular end diastolic pressure (LVEDP) and dP/dT max by means of arterial catheterization, and coronary blood flow by means of the thermodilution method. The results, statistically evaluated by means of multiple comparison test and t-test, did not reveal any significant modifications in the ECG traces, LVEDP, or dP/dT max. The transitory and moderate variations of LVSP and heart rate were not reflected in coronary blood flow, which remained unchanged during and after noise exposure.
1987
Myocardial activity; evaluation; noise exposure
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11562/2248
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact