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Biomedical subjects

D Kummer

Publications and source records attributed to D Kummer.

At least 19 recordsLinked to original sources
PubMed1990

[Acute arterial thrombosis: diagnosis and surgical therapy].

There is an increasing frequency of acute ischemic occlusion due to arterial thrombosis; the incidence has a range from 17% to 60%. In contrast to embolism we can observe a prolonged therapy less interval due to a lesser dramatic clinical course; in thrombotic occlusion only 10% can be treated within 6 h after onset of symptoms. In 11 to 93% of all cases extensive and comprehensive surgical techniques have to be performed for limb salvage. Nevertheless this aim only can be achieved in 60-84%.

Diagnosis, Differential↗
PubMed1990

[Surgical treatment of asymptomatic carotid stenosis].

A total of 274 patients (mean age 67.1 +/- 8.2 years) with asymptomatic stenosis of the internal carotid artery greater than 70% was treated by desobliteration and patchplasty; 332 reconstructions were performed either uni- or bilaterally. In this group only 29% revealed a one vessel disease. Lethality within 30 days was 1.5%; the incidence of complete stroke amounted to 0.9%. In a mean follow up period of 30.8 +/- 20.2 month to lethality rate was 4.4%; 7.8% developed a completed stroke and only 3.8% were related to the operated site. The 5-year-survivalrate was 88.9% and 93.2% of this cohort was neurological free of symptoms.

Aged↗
PubMed1986

[Operative treatment of asymptomatic carotid stenosis].

Over a period of five-and-a-half years 183 patients with high-grade asymptomatic carotid stenoses in stage I were operated upon. Postoperative mortality was 0.5%; there was no permanent morbidity. Cumulative survival rate after four years was 68%. The proportion of patients without neurological disorders after five years was nearly 100%. Asymptomatic re-stenoses were found in 6% of patients. Principal cause of death during the follow-up period was of cardiac origin (9 of 17).

Adult↗
PubMed1985

[Comparison of Doppler ultrasound, intravenous DSA and conventional film angiography in diagnosing stenosing changes in the area of the carotid bifurcation].

The findings on Doppler ultrasound, intravenous DSA and conventional film angiography were compared in 66 examinations of the carotids with regard to their specificity, sensitivity and accuracy. Comparisons with the literature show that intravenous DSA equals Doppler ultrasound only if good or excellent results of the latter are considered. If poorer DSA results are included, diagnostic precision of this method is 5 to 10% less than that of Doppler ultrasound. Mural ulceration can be diagnosed by means of intravenous DSA in only about 50% of cases, whereas Doppler ultrasound is unable to diagnose this. Improved image quality of intravenous DSA, with better diagnostic precision, could be achieved by using ECG gating.

Aged↗
PubMed1981

[Stomach replacement by iso-anisoperistaltic jejunum interposition (Tübinger replacement stomach)].

Since 1972 we have been using a new method of gastric replacement which was developed at our hospital. The reconstruction of passage is achieved by iso-anisoperistaltic interposition of two jejunal segments (30:10 cm). The reversed segment causes delayed and intermittent emptying of the above located isoperistaltic segment. Until now this type of gastric replacement has been performed in 62 patients. Postoperative mortality was 11.3%; so far the longest survival time is nearly 8 years. By the reservoir function of the jejunal interposition digestion and absorption are essentially improved, resulting in a better quality of life for the patient. This type of gastric replacement is now used as a routine in all curative gastrectomies, provided there are no contraindications on account of the patient's age or general condition.

Gastrectomy↗
PubMed1981

[Choice of operative technic in the treatment of liver diseases].

Between 1974 and 1979 resection of the liver was carried out for malign or benign tumors in 42 patients. Lobectomy was performed in 17 and hemihepatectomy in 25 cases (11 times right-sided, 14 times left-sided). Hemihepatectomy with preliminary ligation of the vessels showed a lower rate of complication than the time-saving lobectomy. Mortality rate was 0% in left-sided hepatectomy, 12% in lobectomy, and 27% in right-sided hepatectomy. The cause of death was liver failure in three cases of hepatectomy because of preexisting damage of the remaining lobe showing no compensatory hypertrophy. In accordance with the literature, we conclude that right-sided hepatectomy can be performed only if hypertrophy of the left lobe is present.

Adult↗