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Biomedical subjects

I Koiss

Publications and source records attributed to I Koiss.

18 recordsLinked to original sources
PubMed1995

Bladder augmentation with detubularized intestinal segment.

The authors report on 9 cases of bladder augmentation with detubularized intestinal segments. The capacity of the contracted bladder was increased in 4 cases; care was taken to prevent the development of an hour-glass bladder. In a young female patient a caecal-ileal segment was applied so that in case of a possible future pregnancy the mesentery should not hinder the growth of the uterus. In 4 cases hypertonic neurogenic bladders were augmented with intestinal segments, thus the further destruction of the kidneys could be avoided. In one case the reflux was hindered by a Kock valve, but stagnation developed above the valve, therefore it was eliminated and replaced by a 15 cm intestinal segment. In one case the uninhibited neurogenic bladder was augmented, the resistance of the urethra increased as a result of which the patient stayed dry between self-catheterizations. Attention is called upon the metabolic disturbances and increased risk of infection following intestinal implantations.

Cystectomy↗
PubMed1993

[Laparoscopic cholecystectomy].

Traditional cholecystectomy has been the standard surgical treatment of the gallstone disease for more than 100 years. The technical development led to a new surgical procedure and its rapid acceptance. This is laparoscopic cholecystectomy. Its application is becoming widespread in therapy too. But most of the surgeons are lack of technical experiences in this field. Currently it restricts the indications those are anyway the same of standard cholecystectomy. Besides its many advantages, laparoscopic cholecystectomy has its own disadvantages and being an invasive procedure, there are possibilities of complications. The latest can be reduced by the adequate choice of patients, the careful learning of the operative technic and by turning to open surgery (conversion) when it is necessary. Its morbidity is nearly equal to complications of standard cholecystectomy, but mortality rate is lower (0.05-0.2%). Our morbidity of performed 300 laparoscopic cholecystectomies was 6.4%. We had no death. The hospitalization became as short as 4 days. Our early clinical results (90%) are the same of traditional cholecystectomy. Laparoscopic cholecystectomy as a new surgical procedure involves the efficiency of the standard cholecystectomy and the noninvasive endoscopic technic. Laparoscopic cholecystectomy performed by well trained surgeons is a safe surgical procedure, its early results are excellent and makes the choice of surgical treatment, used in bile surgery richer.

Acute Disease↗
PubMed1992

[Prevention of carcinoid tumor crisis].

A case of the carcinoid tumour of ileum causing hormone producing multiple hepatic metastases was described. Sometimes after feeding and drinking of beer the "flush" and the diarrhoea appeared. Multiple hepatic metastases were established by ultrasound. Two and a half years ago the patient already was examined and treated by another hospital. In this time the origin of the primaer carcinoid tumour was not found and the superselective embolisation of the right lobe of the liver was made which caused a carcinoid crisis. Later the complaints were renewed and once more the patient was examined. The origin of the illness was proved in the lower ileum by CT (computer tomography), angiography and I131 MIBG (metajod-benzyl-guanidin) scintigraphy. Another embolisation of the liver caused a newer carcinoid crisis. The operation of primaer carcinoid tumour was decided because of the danger of carcinoid crisis and ileus. In the perioperative period the patient was protected against carcinoid crisis by Sandostatin (made in SANDOZ, Basel), because the preoperative therapy, the anaesthetics and the surgical manipulation could have caused a carcinoid crisis. In Hungary the authors used for the first time somatostatin in perioperative period to protect the patient against carcinoid crisis.

Carcinoid Tumor↗
PubMed1991

Technique of extensive proximal selective vagotomy.

Based on the experience of 727 operations, the technique of proximal selective vagotomy used by the authors is reviewed in stages. They consider pyloroplasty justified to perform only in complicated cases (bleeding, perforation, stenosis) for preventing complications. Based on their results (mortality rate: 0.68%, recurrences: 6.3%, excellent or good results: 90%), they argue for the operation.

Chronic Disease↗
PubMed1977

Incidence of cholelithiasis after truncal and selective vagotomy.

In order to establish the incidence of cholelithiasis after vagotomy, the patients operated upon in the period January 1st 1966, to December 31st 1971, were reexamined. The incidence of cholelithiasis was 12% after truncal and 2.4% after selective vagotomy, thus complications involving the gall bladder are more frequent after truncal than after selective vagotomy.

Cholelithiasis↗
PubMed1976

Effect of truncal vagotomy on the bacterial flora in the duodenal juice on dogs.

The qualitative and quantitative changes in the bacterial flora of the duodenal juice after truncal vagotomy have been studied in self-control experiments in dogs. The intervention was followed by a rise in the bacterial count without a change in qualitative composition. It is suggested that the accumulation of microorganisms might contribute to the development of postoperative diarrhoea. The role of several partly clarified pathophysiological processes are pointed out.

Animals↗
PubMed1976

[Electron microscopic changes of the intestinal mucosa following truncal vagotomy].

Ultrastructural changes on the mucosa of the jejunum and ileum after truncal vagotomy were studied in the dog. Tests performed 2, 3, 7 and 10 days, 2, 4, 5, 6, 7, 8 and 9 weeks as well as 4, 5, 6, 9 and 12 months after vagotomy showed no significant changes in the epithelial cells. The microvilli, smooth and rough surface endoplasmic reticulum, the free iebosomes and the terminal web area were completely intact. In some cells a swelling of the mitochondria was observed. It is concluded that vagotomy causes no such morphological changes of the intestinal mucosa which could explain postvagotomic diarrhoea.

Animals↗