The Effect of Benson Relaxation Technique and Premedication on Systolic, Diastolic, LV & Aorta Pressure in Patients under Coronary Artery Angiography

The purpose of the present study was to determine the effect of Benson relaxation and premedication on systolic, diastolic, LV & aorta pressure in patients under coronary angiography hospitalized in heart and post angio unit of Shahid Beheshti Center of heart in Zanjan during 2003. In this quasi-experimental study, 40 patients under coronary angiography were selected with random allocation technique(relaxation and premedication group). Data collection tools included two forms which were applied to record blood pressure 8-12 hour and 0.5 hour after, during and before angiography and a questionnaire to record demographic data. Benson relaxation was practiced in relaxation group one day before angiography, then patients were requested to carry it out 2-3 times before coronary angiography. In premedication group, patients took drugs including diazepam, chlorpheniramine, metochloropramid and hydrocortisone. Patients in the control group only took routine nursing care. In two groups hemodynamic parameters were measured 8-12 hour and 0.5 hour after, during and before angiography. Results obtained via independent t-test indicated that there was not a significant difference between relaxation and premedication in parameter hemodynamic variables(systolic and diastolic blood pressure, LV pressure, end diastolic pressure, systolic and diastolic aorta pressure) (P>0.05). This study indicated that both relaxation and premedication methods changed the pressure equally. However, Benson relaxation method is preferred to premedication before massive procedure due to its safety and easy application.