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Biomedical subjects

G Krönung

Publications and source records attributed to G Krönung.

14 recordsLinked to original sources
PubMed1990

Venous anastomoses for dialysis access--special techniques with the use of E-PTFE vascular prosthesis at the forearm.

Suitable veins of great diameter should not be the limitation for the use of E-PTFE prosthesis as a vascular access of second choice for chronic hemodialysis. A sufficient venous drainage has to be attempted inspite of possibly generally bad state of veins regarding the need for retrograde use of vessels. This can be achieved in such cases by careful vascular surgical technique performing multiple-anastomosis or establishing multiple-drainage. By the application of these rules vessels that would otherwise remain unused can be utilized for vascular access in chronic hemodialysis patients. Thus even few months of function after these procedures can be regarded as a success.

Anastomosis, Surgical↗
PubMed1990

[The effect of lung diminishing interventions on immediate postoperative lung function and their modification by various forms of analgesia].

The influence of different lung resection methods on pulmonary function was studied in 34 patients suffering from bronchial carcinoma. Daily measurements from the 1st to 10th postoperative day reveal the greatest losses of function after right upper lobectomy. Lower lobectomies or left upper lobectomy resulted in a less extensive loss of function. Recovery of function mainly occurs in the first 4 days after operation. Centrally acting analgetics are followed by a loss in pulmonary function whereas locally applied analgetics improve early postoperative function.

Adult↗
PubMed1989

[Prevention of infection in teflon prostheses for dialysis access. Experiences with a resorbable combined collagen-antibiotic system].

40 patients with renal insufficiency and chronic hemodialysis received a E-PTFE prosthesis as vascular access either at the upper or lower extremity. The efficacy of prophylaxis of infection through application of a local aminoglycosid, administered as a resorbable collagen-antibiotic-sponge, was studied in two different groups. All patients had a high risk of infection. The use of the collagen-gentamycin-sponge was effective in preventing an infection of the vascular graft. Systemic side effects were not registrated in spite of the reduced renal function. Further studies are necessary to evaluate the efficacy of the collagen-gentamycin-sponge in preventing vascular prosthesis infection in high risk patients.

Adult↗
PubMed1988

[Phlebography of the upper extremity--examination technic, indications and results].

Three radiological methods of examination can be used in phlebography of the upper extremity: screening (fluoroscopy) combined with on-target x-ray film examination; sheet film angiography; digital subtraction phlebography (DSP). Phlebography of the veins of the forearm performed preoperatively for selecting suitable veins for a dialysis shunt, should be done by screening with on-target x-ray film takes in several planes. DSP should be given preference if there is suspicion of thrombosis of the shoulder veins and the superior vena cava.

Arm↗
PubMed1984

[Results of postoperative citrate irrigation following deep rectum resection].

Colonic and rectal anastomoses are more subject to leakage than anastomoses in other parts of the gastro-intestinal tract. Especially the difficult deep sphincter preserving resection of the rectum becomes risky in case of absent serosa and high collagenase concentration. The temporary protective colostomy will reduce the morbidity and lethality of suture leakage significantly. An additional irrigation with citrate-solution of the minor pelvis to avoid haematoma and to reduce germ concentration was not successful. On the contrary wound healing disturbances increased. Therefore it is not used any longer.

Citrates↗
PubMed1982

[Sonographic assessment of the portal system in portal hypertension].

Three hundred and thirty-seven patients with portal hypertension and recurrent bleeding from oesophageal varices were examined by sonography. The situation was correctly elucidated in 17 out of 21 patients (81%) with pre-hepatic blocks, in 275 out of 313 cases (88%) with intra-hepatic blocks and in two out of three cases with post-hepatic blocks. The relevant findings consisted of stenoses and occlusions of the portal venous system and collaterals in pre-hepatic blocks, dilatation of the portal venous system and hepato-fugal collaterals in intra-hepatic blocks and occlusion of the hepatic veins in post-hepatic blocks. Sonography is recommended in cases of portal hypertension because of its non-invasive nature and high accuracy as the primary form of investigation. Spleno-portography should be used only if surgery is indicated.

Esophageal and Gastric Varices↗
PubMed1982

[Echinococcus alveolaris--clinical manifestation, treatment and prognosis].

Life-cycle and endemic areas of Echinococcus alveolaris are described with reference to the autonomous character of this parasitosis. Especially human ways of infestation are shown with man's role as definitive host. The natural course of this parasitosis leads obligatory to lingering illness and death. Indication of exploratory laparotomy remains beyond doubt. Based on our own experience and corresponding with other authors importance of radical resection has to be propagated with reservation. Maintaining of the bile flow however is most important with regard to operative mortality, survival time and quality of life--even when performed as palliative surgical treatment. Adjuvant therapy with Mebendazol (Vermox) is considered to be helpful in improving the unfavourable prognosis of this parasitic disease.

Adult↗