thirty-seven patients were evaluated before cardiac catheterisation by bedside physical examination , including valsalva manoeuvre , to assess the value of the sphygmomanometrically determined arterial pressure responses during the valsalva manoeuvre and to compare its sensitivity , specificity , and predictive accuracy in the detection of left ventricular dysfunction with that of the commonly used diagnostic signs including the chest x-ray .
C0220825
evaluated
C0031809
physical examination