Document Classification

Section Type: RESULTS

Text: Compared with control patients, pretreatment with NTG was associated with a dose-dependent increase in exercise duration averaging 40 seconds (412 + / -19 versus 372 + / -24 seconds, P = 0. 014) and an improvement in ECG manifestations of ischemia, as shown by a decrease in maximal ST-segment depression (1. 84 + / -0. 14 versus 1. 63 + / -0. 13 mm, P = 0. 011), sum of ST-segment depressions in 12 leads (7. 64 + / -1. 01 versus 6. 61 + / -0. 83 mm, P = 0. 027), and time to resolution of ST-segment depression (229 + / -30 versus 207 + / -28 s, P = 0. 018).