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Biomedical subjects

F Heiss

Publications and source records attributed to F Heiss.

At least 19 recordsLinked to original sources

Gastric outlet obstruction secondary to pancreatic cancer: surgical vs endoscopic palliation.

BACKGROUND: Gastric outlet obstruction in patients with pancreatic cancer has a grim prognosis. Open surgical bypass is associated with high morbidity, whereas endoscopic duodenal stenting appears to provide better palliation. METHODS: We reviewed the medical records of patients with gastric outlet obstruction secondary to pancreatic carcinoma who were admitted to our clinic between 1 October 1988, and 30 September 1998. The data included stage of disease, American Society of Anesthesiologists (ASA) class, surgical interventions, complications, and survival. RESULTS: A total of 250 patients with pancreatic cancer were identified. Twenty-five of them (10%) had gastric outlet obstruction. Of these 25, 17 were treated with gastrojejunostomy, six had duodenal stenting (Wallstent), and two were resectable. There was no significant difference between the gastrojejunostomy group and the duodenal stenting group in ASA class or stage of disease. For the gastrojejunostomy group, median survival was 64 days (range, 15-167) and postoperative stay in hospital was 15 days (range, 8-39). For the duodenal stenting group, median survival was 110.5 days (range, 42-212) and postoperative stay was 4 days (range, 2-6). Ten patients (58.8%) in the gastrojejunostomy group had delayed gastric emptying. All of the patients in the duodenal stenting group were able to tolerate a soft diet the day after stent placement. Thirty-day mortality in the gastrojejunostomy group was 17.64%; in the duodenal stenting group, it was 0. CONCLUSION: In pancreatic carcinoma patients with gastric outlet obstruction, duodenal stenting results in an earlier discharge from hospital and possibly improved survival.

Aged↗

DNA-synthesizing T and non-T cells in bacterial infections.

The results of autoradiographic determination of DNA-synthesizing lymphocytes (3H-thymidine) in 10 patients with bacterial infections were compared with results in 10 normal patients and contrasted with 23 CLL patients in different stages [12]. In patients with infectious diseases the absolute number of T cells was lower and the mean values of S-phase T cells and S-phase non-T cells was higher than in normal persons. In contrast to the patients with infections, CLL patients in stage o--III have lower S-phase T cell values and higher S-phase non-T cell values. In stage IV, on the other hand, all DNA-synthesizing lymphocytes are increased.

Adult↗

The 4-methylumbelliferone sulphate sulphatases of human tears.

The properties of human tear 4-methylumbelliferone sulphate sulphatase (EC 3.1.6.1) have been investigated. More than 80% of the enzyme activity behaved as the acidic A isoenzyme on isoelectric focusing and DEAE-cellulose ion exchange chromatography. The distribution of enzyme activity in a normal population has been investigated. The least interindividual variation was seen when enzyme activities were calculated as units per mg tears. The alpha-galactosidase, beta-N-acetylglucosaminidase and sulphatase enzyme activities in human tears varied independently of each other. The use of tear sulphatases for the detection of metachromatic leukodystrophy (McKusick 24980) is discussed.

Acetylglucosaminidase↗

[Comparative studies on the protective effect of etilefrin and dihydroergotamine in circulatory instability after blood donation].

In 20 female and 40 male subjects with circulatory instability, the response of pulse rate and blood pressure to blood loss and orthostasis was studied under the condition of protective pretreatment with drugs known to improve venous return by increasing the tone of capacitance vessels. Before blood loss (420 ml), in a cross-over double-blind procedure, each subject obtained 10 mg etilefrin or 2 mg dihydroergotamine, both administered orally. The procedure was repeated after at least 8 weeks. At this time, the subject obtained the drug which was not given in the first examination. By comparison of pulse rate and blood pressure taken after pretreatment, the statistical evaluation did not reveal any differences in the effectiveness of one or the other drug on the response to hypovolemic and orthostatic conditions. Patients preferred etilefrin.

Adolescent↗