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Biomedical subjects

A Piwnica

Publications and source records attributed to A Piwnica.

At least 163 records · Page 9Linked to original sources
PubMed1977

Case report of congenital tricuspid insufficiency.

This is a report of a 16 years old male with moderate mitral disease, probably rheumatic, and with severe tricuspid insufficiency which at surgery appeared to be a congenital malformation of the tricuspid valve (absence of the anterior leaflet). A tricuspid heterograft was successfully inserted. The symptoms of congenital tricuspid insufficiency are discussed and this affection is differentiated from other causes of tricuspid insufficiency.

Adolescent↗
PubMed1976

Emergency myocardial revascularization.

From 1969 to 1975, 175 patients with acute coronary insufficiency underwent emergency saphenous vein aorto-coronary bypass grafting (SVBG). The patients were divided into two groups: group I, unstable angina (165 patients) and group II, acute evolving myocardial infarction (ten patients). In group I, the hospital mortality was 8-4%, the incidence of post-operative myocardial infarction was 10-3%. Long-term follow-up was obtained for an average of 25 months, functional improvement was definite in the majority of the patients and actuarial survival curves show 87% patients alive at the end of 48 months. In group II, the hospital mortality was 30%; seven of ten patients had good results.

Adult↗
PubMed1976

[Temporary mechanical cardiocirculatory assistance in an adolescent suffering from subacute cardiac failure].

A case is reported of subacute carciac failure during the course of a non-obstructive cardiomypathy in an adolescent. When the exacerbation of cardiac failure, which was accompanied by severe arrhythmias, failed to respond to medical treatment, the combination of a veno-arterial bypass and membrane oxygenator with diastolic counter-pressure from an intra-aortic balloon was tried with success. A reasonable remission was obtained by this means, but the young patient died 8 months later from cardiac failure which proved resistant to treatment.

Acute Disease↗
PubMed1976

[Massive tricuspid insufficiency during idiopathic dilatation of the right atrium. Surgical treatment. Apropos of two cases].

Tricuspid incompetence occuring in isolation is extremely rare, and had only been described under certain very particular conditions: trauma, septicaemia of genital origin, intravenous injection of narcotics. Idiopathic dilatation of the auricle of the right atrium is a disorder which has been described during the last fifteen years or so, and is recognised mainly because of the disorders of rhythm which it causes. These two cases demonstrate that, in the long-term, massive dilatation of the auricle can lead to tricuspid incompetence by dilating the ring, and require surgical intervention.

Aged↗
PubMed1976

Congenital malformations of the mitral valve in children. Pathology and surgical treatment.

A systematic study of congenital mitral valve malformations was undertaken on a surgical basis in an attempt to develop techniques of valvular reconstruction adapted to the various lesions. Forty-seven children between the ages of 4 months and 12 years (average 6 years, 4 months) have been operated upon between January, 1970, and March, 1976. Valvular lesions were classified into four group: Group I, mitral insufficiency owing to valvular lesions: Group II mitral insufficiency with subvalvular lesions; Group III, mitral insufficiency and stenosis; Group IV, stenosis. Associated lesions (ventricular or atrial septal defects, coarctation, or aortic valve stenosis) were present in 31 patients (65 per cent) and were corrected during the same operation. Valve reconsruction was possible in 38 patients whereas valve replacement was necessary in 9 patients. In the valve repair group there were three operative deaths (8 per cent), no late deaths, one reoperation for residual ventricular septal defect, and one myocardial infarction. In the valve replacement group of 9 patients, there were three operative deaths, three late deaths, and one case of repeated embolization. Thirty-one of 38 patients in the valve repair group were classified into Functional Class I after the operation (86 per cent), 2 were in Class II, and one in Class III. Minimal or moderate regurgitation and cardiomegaly persisted in the majority of the patients. Pulmonary artery pressure significantly decreased, however, as demonstrated by postoperative catheterization in 17 patients.

Child↗
PubMed1975

[A surgical series of 128 cases of mitral insufficiency caused by chordae tendineae rupture].

In relation with 128 cases of surgical operation for mitral incompetence through ruptured chordae tendinae, the aetiological, anatomical and clinical characteristics of these cases were described. Bacterial endocarditis and spontaneous rupture were present in 77 percent of cases. In 94.4 percent of the cases, the patient coming to operation was in a high functional class (class III and IV of the NYHA). Operation included valve replacement in 100 cases (by a Starr-Edwards prosthesis), while the mitral valve was preserved in 28 patients. The conservative operation presently performed combined the resection-suture of the deinserted area and a reconstitutive valvuloplasty over a Carpentier's ring. Results of this surgery are good in more than 90 percent of the cases.

Adolescent↗
PubMed1975

[Surgical treatment of a single ventricle. Apropos of 4 operated cases].

A surgical operation with a "curative" aim has been performed on four patients with a lone ventricle. It consisted of a IA type in 3 cases and IC type in one. There were one operative death and three long-term survivals. The operation consisted essentially in: a delicate step of partition of the lone cavity and the treatment of the often combined, and sometimes complex, heart malformation. The trauma to the conduction pathways is one of the major dangers of this type of operation and should be avoided or decreased by the detection during operation of the His bundle. Operation should be indicated in badly tolerated forms. Stenosis of the infundibulo-pulmonary pathway interferes with the development of a hypertensive pulmonary arteriolitis, seems to be a favourable element for surgical correction. In the absence of such stenosis, one should perform a banding early enough or discuss the indication for an intracardiac operation in relation with the pulmonary artery resistance.

Adult↗
PubMed1975

[Re-operations on mitral valve prostheses. Apropos of 40 cases].

The present study deals with a series of 40 reoperations in a group of 1279 patients undergoing mitral valve replacement. All reoperations were late following the immediate post-operative period, the earliest being 5 months after the primary operation. The factors which were analyzed are: causes of reoperation, the most frequent being paravalvular leaks and valve thrombosis, diagnostic methods, surgical techniques and results following reoperation.

Heart Valve Diseases↗
PubMed1975

[Septal perforation of myocardial infarct. Progress and limitation of current treatment. Apropos of 28 recent cases].

The emergency treatment of septal perforation in a myocardial infarction was markedly improved by pre-operative preparation of the patient by an intra-aortic balloon. If one excludes 7 cases in which the favourable immediate course made possible a delayed operation, 21 cases, severe from the start, were observed in the last two years: 8 patients, were thought to be operable with 6 successes. The type of the patient, the age, the associated diseases, the gravity and extension of the local lesions explain that this complication nevertheless still remains very often beyond the present possibilities of the medical-surgical treatment.

Aged↗