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A Kehl

Publications and source records attributed to A Kehl.

7 recordsLinked to original sources
PubMed1986

[Right bundle-branch block configuration in the pacemaker ECG--3 different observations].

We report on 3 cases of right bundle branch block configuration in the ECG after pacemaker implantation. In case 1 it was not noticed that the catheter had been directed through an unknown sinus venosus defect into the left atrium and the left ventricle. In case 2 the catheter reached the left ventricle via an iatrogenic perforation of the lower part of the atrial septum. In case 3 the catheter was situated correctly in the right ventricle, but the tip was penetrating the septum. Different possibilities of interpretation of this phenomenon are discussed, and a description of further pacemaker catheter misplacements which may be responsible for a right bundle branch block configuration is given. The authors take the view that a pacemaker catheter should not remain in the arterial area, in the pericardial space and in the coronary sinus. A lateral radiograph, a 12-lead ECG and an echocardiographic study are helpful for detecting and interpreting an unusual catheter position or a right bundle branch block configuration in the pacemaker ECG.

Aged↗
PubMed1985

Does an antifoaming agent improve the quality of abdominal ultrasonography? A double-blind study with special reference to the pancreas, the aorta and the para-aortic region.

To overcome the effects of intestinal gas which may be a problem for ultrasound examinations, a double-blind study was undertaken in 42 patients in whom the first ultrasound examination was unsatisfactory due to excessive intestinal gas. The patients received either a liquid dimeticon preparation over 24 hours (total dosage 480 mg) or a placebo. Criteria for the evaluation of the treatment were the ability to visualize the pancreas, the aorta and the para-aortic region at the second examination. The quality of the ultrasonic images was found to be improved in 52% of the controls by repetition and in 71% of the test substance group, the difference being not significant (p greater than 0.05). It is concluded that: It is worthwhile asking the patient to return for a second examination 24 hours later before resorting to invasive and/or expensive procedures when the first scan was of poor quality and liquid dimeticon has no significant defoaming effect in these patients.

Aorta↗
PubMed1984

Immune complex-like material in the serum and plasma exchange in patients with metastatic cancer.

Clinical significance of immune complex-like material in the serum was investigated in tumour patients undergoing plasma exchange with albumin-saline solution and subsequent chemotherapy. Immune complexes were detected by the Clq binding assay or the Raji cell radioimmunoassay in nine out of forty-five patients before this therapy. Levels of immune complexes were decreased to 10-30% of the initial value by plasma exchange depending on exchanged plasma volume. In contrast to other serum proteins like alpha 1-antitrypsin and alpha 2-macroglobulin, which showed protein specific increase during follow up after plasma exchange in all patients, recovery rates of immune complexes and IgG were highly individual but parallel in each patient. Clinical response to this protocol did not correlate with immune complex status, suggesting that removal of the measured immune complex like material had little clinical significance or was not longlasting enough to provide therapeutic benefit.

Albumins↗
PubMed1981

Solid-phase radioimmunoassay for detection of alcoholic hyalin antigen (AHAg) and antibody (anti-AH).

Alcoholic hyalin (AH) was isolated and purified from post-mortem livers of patients with alcoholic hepatitis. Antibodies against AH (anti-AH) were raised in guinea-pigs. Their specificity was demonstrated by immunofluorescence and by immunoabsorption. The antisera were positive in immunofluorescence and complement fixation up to serum dilutions of 1:320 and 1:32 respectively. In order to achieve a higher sensitivity a solid-phase radioimmunoassay (SP-RIA) was established for detection of alcoholic hyalin antigen (AHAg) and anti-AH. Anti-AH could thus be measured up to a 10(5) serum dilution. Using a blocking test, solubilized AH at protein concentrations as low as 80 to 160 ng/ml could be detected. With this SP-RIA, neither AHAg nor anti-AH was found in the sera of 32 patients with histologically proven alcoholic hepatitis. The sera were likewise negative by indirect immunofluorescence, complement fixation and immune adherence haemagglutination test.

Antibodies↗