Efficacy of hepatobiliary imaging of acute abdominal pain: concise communication.

To assess prospectively the usefullness of hepatobiliary imaging in acute abdominal pain (72 hr or less), 36 patients were scintigraphed after intravenous injection of 5 mCi of Tc-99m p-isopropyl-iminodiacetic acid (PIPIDA). Before the procedure, the referring physician completed Part I of a questionnaire indicating his differential diagnosis, diagnostic confidence (expressed as a percentage), and therapeutic plan. Immediately after the test, the same physician, with knowledge of the results, completed Part II of the questionnaire indicating again his differential diagnosis, diagnostic confidence, and therapeutic plan.

Sustained benefits or oral pentaerythritol tetranitrate on ventricular function in chronic congestive heart failure.

The hemodynamic effects of a single oral dose of 80 mg of pentaerythritol tetranitrate (PETN) were determined over a 5-hr period in 16 patients with chronic congestive heart failure. PETN decreased (p < 0.05) pulmonary capillary wedge pressure (27 to 18 mm Hb), right atrial pressure (15 to 9 mm Hg), mean systemic arterial pressure (89 to 80 mm Hg), and systemic vascular resistance (1,812 to 1,466 dynes x sec x cm-5).

Sustained beneficial effects of oral pentaerythritol tetranitrate on ventricular function in chronic congestive heart failure.

The hemodynamic effects of a single oral dose of 80 mg of pentaerythritol tetranitrate (PETN) were determined in 16 patients with chronic congestive heart failure over a 5-hour period. PETN produced significant (p < 0.05) decreases in pulmonary capillary wedge pressure (27 to 18 mmHg), right atrial pressure (15 to 9 mmHg), mean systemic arterial pressure (89 to 80 mmHg) and systemic vascular resistance (1812 to 1466 dynes .

Hemodynamic effects of intravenous timolol in coronary artery disease.

The hemodynamic effects of intravenous timolol were evaluated in 20 patients with coronary artery disease during diagnostic cardiac catheterization. The threshold dose of 0.25 mg reduced heart rate and cardiac index by 15% (p less than 0.

Quantification of myocardial injury during coronary artery bypass graft.

Serial intraoperative myocardial-specific creatine-kinase (MB-CK) samples were obtained in 32 patients undergoing coronary artery bypass graft (CABG). Based upon their postoperative ECG and technetium pyrophosphate SCAN results, each patient was classified as either Group A (MI), B (normal), or C (equivocal). Peak MB-CK was reported for each group.

Coronary sinus blood flow and sampling for detection of unrecognized myocardial ischemia and injury.

Fifteen patients were studied to detect unrecognized intraoperative ischemia or necrosis in perioperative myocardial infarction (MI) associated with coronary bypass. Simultaneous arterial and coronary sinus blood samples were analyzed for lactate and both total and MB-CPK. Coronary sinus flow measurements were done coincident with sampling in seven patients.