No abstract available.

Oxyen consumption of surgical patients was measured by McKesson Metabolar (Model 185) on the Recording Metabolar Chart (M-147) in four groups: group A, at resting state immediately before preanesthetic medication; group B, immediately following induction of anesthesia with thiopental (10 mg./kg.); group C. 30 minutes after surgical ether anesthesia; and group D, when conciousness returned during the stay in the recovery room. The results are as follows: (1) Thiopental reduced oxygen consumtion by 25 per cent. (2) Ether anesthesia reduced, oxygen consumption by 59 per cent. (3) During recovery from anesthesia, oxygen consumption was 28 per cent below the control. (4) Comparing with other data, ether anesthesia reduced oxygen consumption significantly more than fluothane or nitrous oxide did.
Anesthesia ; Anesthesia, General* ; Ether ; Halothane ; Humans ; Nitrous Oxide ; Oxygen Consumption* ; Oxygen* ; Preanesthetic Medication ; Recovery Room ; Thiopental

No abstract available.
Polyps*

Successful percutaneous transluminal angioplasty (PTA) of an internal mammary artery graft was performed in a 40 year old male patient who had recurrent angina soon after bypass surgery. Coronary angiography showed total occlusion of proximal portion of the left anterior descending artery and normal right coronary artery. Angiography of the left internal mammary artery graft revealed a tight stenosis (90% diameter narrowing) in the mammary artery at its insection into the left anterior descending artery.Angiography after the angioplasty demonstrated a widely patent graft (residual stenosis 10%) and translesional pressure gradient was 10 mmHg.
Adult ; Angiography ; Angioplasty* ; Arteries ; Constriction, Pathologic* ; Coronary Angiography ; Coronary Vessels ; Humans ; Insects ; Male ; Mammary Arteries* ; Transplants*

No abstract available.
Child* ; Humans ; Infant, Newborn* ; Plasma* ; Renin*

Myocardial infarction is almost regularly associated with severe and widespread obstructive coronary artery disease. Recently, there have been some reports of myocardial infarction with normal of near normal coronary arteries on cineangiography. The following report concerns 6 cases (4% of a series of 142 consecutively studied patients with myocardial infarction) of myocardial infarction proved on clinical grounds with normal or near normal coronary arteries at coronary angiography obtained several months later. The clinical data was shown in Table 1 and Table 2. All 6 patients were male. Three were in the fifth, two in the sixth, and one in the seventh decade. Multiple risk factors were present in only one patient. Areas of localized dyskinesia or hypokinesia were demonstrated in five on the left ventricular cineangiography. The left ventricular end-diastolic pressure was greater than 12 mmHg in all 6 patients. One patient had hypertrophic cardiomyopathy and the remaining 5 patients had no underlying heart diseases. One patient had moderate congestive heart tailure. It is possible that prolonged, localized coronary artery spasm or platelet thrombi that subsequently resolved are a part of the pathogenic mechanism.
Blood Platelets ; Cardiomyopathy, Hypertrophic ; Cineangiography ; Coronary Angiography ; Coronary Artery Disease ; Coronary Vessels* ; Dyskinesias ; Estrogens, Conjugated (USP) ; Heart ; Heart Diseases ; Humans ; Hypokinesia ; Male ; Myocardial Infarction* ; Risk Factors ; Spasm

Conventional dual chamber pacing (DDD) preserves atrioventricular synchrony but depend on appropriate sinus node function to achieve physiological heart rate with exercise by atrial tracking. Other indirect indicators of metabolic demand have been used to modulate pacing rate increases with exercise including sensing of pH, respiratory rate, ventricular repolarization and oxygen saturation. The activity sensing approach is unique in that noise generated by activity modulates the response and empirical programming of the unit allows for attaining the desired rate for a given level of activity. Physiologic rate increases can be obtained in patients with sinus node dysfunction or even atrial fibrillation. The lead can either be positoned in the atria for patients without atrial fibrillation or AV conduction disturbance or in the ventricle. We present two cases of rate responsive pacing using the Activitrax.
Atrial Fibrillation ; Heart Rate ; Humans ; Hydrogen-Ion Concentration ; Noise ; Oxygen ; Respiratory Rate ; Sick Sinus Syndrome ; Sinoatrial Node

No abstract available.

No abstract available.

No abstract available.