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Longitudinal changes in the response variables following 20 μg of prostaglandin E1 (PGE1) and 2 mg phentolamine
| 20 mg PGE1 | 2 mg Phentolamine | P | |
|---|---|---|---|
| PSV | 48 cm/s | 52.6 cm/s | P<0.001 |
| EDV | 7.7 cm/s | 1.8 cm/s | P=0.0001 |
Sixteen out of 18 study patients received phentolamine. (PSV, peak systolic velocity measured in cm/s; EDV, end diastolic velocity measured in cm/s)
