CT findings in mediastinal extravasation of hyperalimentation fluid.

We report a patient with recurrent ovarian carcinoma who developed a mediastinal mass due to extravasated Intralipid hyperalimentation fluid secondary to catheter induced occlusion of the left innominate vein.

A clinical comparison of the effect on the gingiva of the Prophy-Jet and the rubber cup and paste techniques.

This clinical trial compared the effect on the gingiva of the Prophy-Jet and the rubber cup and paste techniques of stain and supragingival plaque removal. Twenty-one human subjects with healthy gingiva or slight gingivitis participated. A split mouth design was used.

Detection of neutral amino acid substitutions in proteins.

The field of biochemical genetics relies heavily upon the detection by electrophoresis of genetically determined variants of proteins. Most of these variants differ by substitutions that involve charged amino acids. Genetic variants of another large class, ones that involve substitutions among neutral amino acids, are not easily detected and are often ignored.

Proximal femoral osteotomy: a trigonometric analysis of effect on leg length.

A trigonometric analysis of the effect of a proximal femoral osteotomy, either dome or cuneiform, on leg length was done to aid the preoperative planning for this surgery. Change in leg length may be determined for a dome osteotomy by multiplying the length of the head-neck segment by the difference between the cosines of the preoperative and postoperative neck-shaft angles as measured from the vertical. A series of determinations are tabulated for a variety of head-neck lengths and angulation changes.

Adaptations of forearm circulation to varied intensities and sets of heavy exercise.

Nine male and five female college students were tested on four occasions to determine the effects of various exhaustive weightlifting stimuli on forearm blood flow as measured by strain-gauge plethysmography. Maximum voluntary dynamic wrist curl strength was determined in the first session, which was followed by random treatments of exercise with 70, 80, and 90% of the weight subjects could curl only one time (1 RM) on three separate days. During each treatment, after a 15-min rest, subjects performed three sets of exercise movements at a pace of 0.

Frequency of intensive, prolonged exercise as a determinant of relative coronary circumference index.

This study determined the effects of 10 weeks of intensive swimming 0, 1, 5, and 10 times per week on relative coronary circumference index (RCCI), which was calculated as the ratio of cardiac ventricular weight to the sum of the circumferences of the right and left main coronary arteries. Sixty-nine Wistar rats swam continuously for 30 to 51 min per session while carrying 1.0% to 1.

Central ventilatory depression by oral propranolol.

Propranolol, 20 mg, was given orally four times daily for 5 days and placebo four times daily for 5 days in a randomized, double-blind fashion to nine healthy subjects. At the beginning of the study and on the last day of each medication pulse rate, blood pressure, airways resistance, maximum expiratory flow versus volume (using air and using 80% helium and 20% oxygen), spirometry before and after inhaled isoproterenol, and ventilatory and occlusion pressure responses to rebreathing carbon dioxide were measured. Results were compared by the Wilcoxon signed-rank test.