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Biomedical subjects

H T Randall

Publications and source records attributed to H T Randall.

At least 19 recordsLinked to original sources

Prospective hematologic evaluation of gastric exclusion surgery for morbid obesity.

To evaluate the long-term frequency and severity of anemia and selected vitamin and mineral deficiencies after gastric exclusion surgery for morbid obesity, the authors prospectively examined hematologic and nutritional parameters in 150 consecutive patients. These patients underwent a standardized gastric exclusion procedure during a six-year period (1976-1982) and were closely followed for up to seven years (mean, 33.2 months). Anemia developed in 36.8% of the population at a mean time from operation of 20 months. It was more frequent in women than in men (p less than 0.01), and it required transfusions in 3.5% of the population. A low serum iron concentration developed in 48.6%, iron deficiency in 47.2%, a low serum vitamin B12 concentration in 70.1%, vitamin B12 deficiency in 39.6%, and RBC folate deficiency in 18% of the population. Both iron and folate deficiencies responded to oral replacement. As a result of the high frequency and severity of anemia and nutritional deficiencies noted, all gastric exclusion patients should, as a minimum, be placed on oral multivitamin preparations containing iron, folate and vitamin B12. In addition, it is imperative that these patients be followed closely for the remainder of their lives with appropriate studies and replacement as necessary.

Adolescent

A home program of long-term total parenteral nutrition in children.

Three children--ages 4 months, 5 months, and 14 years--have been on a program of total parenteral nutrition at home for ten, 23 and 44 months respectively, as of January, 1978. Using a specially designed silicone rubber catheter, placed in the right atrium, total nutritional needs of these children were delivered nightly by family members; the children carried out normal activity during the day with the catheter line maintained by a heparin lock. Normal skeletal development and weight gain have been achieved while allowing these children normal social and psychlogic development outside the hospital. During the course of the therapy the patients had multiple metabolic abnormalities which were successfully treated by replacement therapy. The duration of catheter patency ranged from three to 22 months. Catheter sepsis or mechanical failure occasionally required catheter removal and replacement.

Adolescent

Total blood washout and exchange. A valuable tool in acute hepatic coma and Reye's syndrome.

Total body washout (TBW) was accomplished thirteen times in twelve patients, with response in five and survival in three. TBW can be done without apparent harm to patients and is less laborious and more rapidly effective than repeated exchange transfusion. Early application of TBW in stage III to stage IV hepatic coma may increase survival and possibly prevent progression of metabolic derangements. Patients with stage III to IV Reye's syndrome probably should have TBW promptly, without time-consuming attempts at exchange transfusion. Based on our experience, further application of TBW is warranted in coma due to acute hepatic failure and stage III to IV Reye's syndrome.

Adolescent

Jejunoileal bypass for morbid obesity: early results and body composition changes in forty-five patients.

Forty-five patients who underwent a 14 by 4 inch jejunoileal bypass for morbid obesity were studied before the operation and at periodic intervals after operation to determine the complications and changes in body composition resulting from this procedure. Body composition studies were determined using 3H2O and 42K. Rapid weight loss occurred in the first 3 months, with a mean loss of 30 percent of excess weight. This weight loss was accompanied by a decrease in exchangeable potassium (Ke) and total body water (TBW) during this interval by 14 and 10 percent, respectively. Although most patients continued to lose excess weight Ke and TBW stabilized at the end of the first year and returned to preoperative values in six patients at the end of 24 months. Analysis of the ratios of body cell mass and total body water to weight shows an improvement of body composition 12 months after operation. Body composition studies permit a quantitative assessment of the nutritional status in patients undergoing jejunoileal bypass. In spite of significant complications (23 percent), surgery for morbid obesity appears to satisfy the objective of allowing desirable loss of fat with relative sparing of muscle and other supporting tissues.

Adult

Electrophoretic patterns of alkaline phosphatase isoenzymes in human sera with abnormally high activity, and an unusual band observed in sera of patients with pancreatic cancer.

Alkaline phosphatase isoenzymes in sera were resolved by electrophoresis on cellulose acetate membranes into seven different bands (L1, B, Pl, L2, l1, l2, and Pa, in decreasing order of electrophoretic mobility). The slowest moving band (Pa) was observed in the sera of 16 patients--15 with cancer of the pancreas and one with hemochromatosis. Sera of 50 other patients with malignant or benign diseases did not show the Pa band. The Pa band is more heat labile than is the liver isoenzyme (L1). Its behavior toward inhibitors (L-phenylalanine and L-homoarginine) is similar to that of L1. Sera containing the Pa band exhibit a diffuse band in the region where isoenzymes of intestinal origin migrate; however, its heat stability and sterospecific inhibition are different from those of intestinal isoenzymes in sera that show no Pa band.

Adenocarcinoma