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Biomedical subjects

W Bircks

Publications and source records attributed to W Bircks.

At least 127 records · Page 7Linked to original sources
PubMed1978

[The value of enzyme-determination after cardiac surgery (author's transl)].

In 342 patients undergoing open heart surgery we determined the serum enzyme levels of GOT, GPT, LDH, alpha-HBDH, LAP, CK and CK-MB from the beginning of the operation up to the 14 th postoperative day. There was an elevation of serum enzymes depending on the type of operation, the duration of extracorporal circulation and the postoperative course. A pattern of enzyme changes for uncomplicated cases is described. The investigations demonstrate a statistically significant correlation between the elevation of "liver specific enzymes" and right heart failure on one hand and of "heart specific enzymes" and myocardial ischemia on the other hand. It is concluded that only repeated determinations beginning with the operation enable to evaluate serum enzyme levels.

Adult↗
PubMed1978

[Hemodynamic results after tricuspid valvuloplasty (author's transl)].

Postoperative hemodynamic studies were conducted at rest and during exercise in 24 patients who, in addition to mitral and/or aortic valve surgery, had De Vega's tricuspid anuloplasty. To determine the degree of tricuspid insufficiency (TI), right atrial pressure (PRA) tracings, biplane right ventricular cineangiograms, and ultrasonic Doppler flow patterns were obtained. 20 patients had postoperative by a mild to moderate TI, but after operation the TI had improved by one or more degrees in 14 cases. In addition, a mild to moderate tricuspid stenosis with pressure gradients from 2.0 to 7.8 mm Hg were found in 12 patients. There was no significant change in mean right atrial pressure (PRA) with 8.0 +/- 4.5 mm Hg preoperatively and 7.5 +/- 3.5 mmHg postoperatively at rest. During exercise PRA rose to 17.0 +/- 6.5 mmHg. This pressure increase is in part due to the persistent elevation of left atrial and pulmonary artery pressure, in part to the TI and the tricuspid stenosis. De Vega's anuloplasty does not answer the tricuspid challenge, since the results are unpredictable.

Adolescent↗
PubMed1977

[Idiopathic edema, capillaropathy, pericardial and pleural effusions with high protein content (author's transl)].

Clinical and electron microscopic studies of two female patients are reported who, in addition to the symptoms and signs of idiopathic edema, had pericardial (and pleural) effusions. In one patient pericardiectomy had to be performed, in the other patient pharmacotherapy with spironolactone was effective. In these patients the protein-concentrations of edema fluid (25 and 12 g/l) and pericardial fluid (55-61 and 48 g/l) were relatively high; the distribution space of labelled protein was increased; blood volumes were low-normal or decreased. Electronmicroscopy of the microvasculature showed identical alterations in both cases. In the cutaneous vessels the endothelium developed numerous abnormal cytoplasmic processes and intercellular "gaps". In the capillaries of skeletal muscle our findings indicate an increase in vesicular transport. We suggest the electron microscopic alterations to be the morphologic correlate for the increased transport and extravascular accumulation of protein. Changes as they are described here in humans with idiopathic edema have been documented before in animals with experimental edema.

Adult↗
PubMed1977

Predictable correction of tricuspid insufficiency by semicircular annuloplasty.

During surgical correction of multivalvular lesions, acquired tricuspid insufficiency is best treated by a semicircular annuloplasty technique. In order to achieve an individualized and accurate correction, the tricuspid annuloplasty suture is tied around an obturator, the dimensions of which are based upon Carpentier's tricuspid ring.

Humans↗
PubMed1977

[Surgical treatment of aortic arch anomalies (author's transl)].

Anomalies of the aortic arch can be deducted by embryology. Aortic ring anomalies (double aortic arch, Art. lusoria, right descending aorta with Lig. arteriosum) have to be opened if clinically indicated. Aortic arch stenosis has to be removed by resection of intraaortic membranes, end-to-end-anastomosis, patch enlargement, or prosthetic bypass graft. Aortic interruptions require a functionally sufficient bridging by end-to-end-anastomosis, prosthetic bypass graft, or interposition of an aortic arch vessel. In 1971 the left common carotid artery was used in a 14 years old boy which seems to be insufficient for bridging the aortic arch defect five years later.

Adolescent↗
PubMed1977

[Obstructive thrombosis of the pulmonary trunk: a rare but dangerous late complication of the banding procedure (author's transl)].

This paper presents three cases of obstructive thrombosis of the pulmonary trunk following banding procedure. The complication was lethal for all our patients as well as for the three others reported in the literature. Considering the typical course of the complication, the relatively late onset of cyanosis or its increase in heart diseases with primary right-to-left shunt, the X-ray pictures of the thorax depicting a drastic fall of pulmonary flow, and most of all the angio-cardiographic clues for the presence of an intravasal thrombus, it appears, that the correct diagnosis could be made early enough to permit life saving surgery. The anatomical-pathological findings and the results of histological examination are reported for all three patients.

Child↗
PubMed1976

[Surgical management of acquired tricuspid insufficiency--valvular replacement or annuloplasty? (author's transl)].

61 patient underwent operative repair of acquired tricuspid insufficiency (T.I.) during correction of multiple valvular disease. 45% presented a relative T.I. through annular dilatation, while organic lesions of the tricuspid valve were found in 56% of the patients. A tricuspid valvular replacement was carried out in 17, and a tricuspid annuloplasty in 44 patients. We believe that during surgical management of multiple valvular lesions, all tricuspid insufficiencies of even when only of a slight to moderate degree - should be corrected aggressively. Tricuspid valvular replacement should be avoided if possible and a tricuspid annuloplasty should be performed.

Adolescent↗
PubMed1976

[Obstruction of the hepatic portion of the inferior vena cava: morphological characteristics and surgical treatment (author's transl)].

Operable obstructions of the hepatic portion of the inferior vena cava (IVC) are rare but probably diagnosed more frequently nowadays. Since 1969 we operated 2 patients, one of them twice. Concerning to these cases the problems of diagnosis, morphology and surgical treatment are discussed. In the patient, who were operated twice, we found the combination - which has not been reported in medical literature yet - of a membranous stenosis of the hepatic portion of the IVC and a large Eustachian valve obstructing the IVC.

Budd-Chiari Syndrome↗