INHERENT PHYSIOLOGIC MECHANISM CAUSING NEGATIVE DETRUSOR PRESSURE DURING COUGH PROVOCATION IN URODYNAMIC STUDY OBSERVED BY SIMULTANEOUS DUAL CHANNELS OF EMG

초록

There showed three types of values of EMG1-s minus EMG2-s showed (negative -24; zero-14, positive-10), and the values of Pves2-s minus Pabd1-s (negative -20; zero-12, positive-16) (Fig. 1). This means that 70 % (34/48) among total cough provocations showed the time dismatch between rectus and perineal muscle contraction during cough provocation. In detrusor pressure, 42 % (20/48) showed the real negative pressure due to the ahead contraction of perineal muscle during cough provocation. This dismatch happened in 12 patients and showed within-person variability.