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Biomedical subjects

F Bouchard

Publications and source records attributed to F Bouchard.

At least 37 records · Page 2Linked to original sources
PubMed1981

[Calcification of the tricuspid annulus].

Tricuspid annular calcification was observed on cardiac screening of a 50 year old woman with congenital valvular pulmonary stenosis and confirmed by angiography. At operation, the tricuspid annular calcification was palpable but there was no interference with valvular function. There was no associated disease process in this patient. Phosphate and calcium metabolism was normal. Tricuspid annular calcification is very rare: 7 other reported cases, aged 42 to 51 years old. All patients had right ventricular hypertension usually caused by pulmonary stenosis. Tricuspid valve function was normal in all cases. The pathogenesis is discussed: a premature degenerative process favored by right ventricular hypertension may be responsible. This would appear to be the first case to be published in France.

Calcinosis↗
PubMed1980

[Long term hemodynamic results following complete cure of Fallot's tetralogy].

Cardiac catheterisation was carried out on an unselected series of 148 patients who had undergone complete correction of Fallot's tetralogy after an average postoperative period of si and a half years (range 2 to 20 years). 4% residual significant interventricular shunts (Qp/Qs > 1.3), 11% residual stenosis on the infundibulo-pulmonary tract (gradient greater than or equal to 10 mmHg) and 60% pulmonary incompetence was found. These findings do not reflect the excellent clinical results. All patients had normal lives: 89% remain asymptomatic since their operation and symptoms in the other patients are limited to moderate dyspnoea on effort or to arrhythmias which are usually periodic. A synthesis of the clinical and haemodynamic data shows that only a quarter of patients may be considered to be cured, that although the surgical results in 2/3 patients are not perfect, they are satisfactory, and that the results of complete correction in the remaining 12% are poor. The results do not appear to be related to the age at which correction was performed or to previous palliative surgery. On the other hand, the long-term haemodynamic results were related to the surgical method of infundibulo-pulmonary repair. Systolic right ventricular pressures of over 60 mmHg recorded at the end of operation in 33 patients, had returned to normal in 76% cases. These results suggest that the indications for prosthetic remodeling of the infundibulo-pulmonary tract should be increased, although this does not always prevent residual stenosis.

Adolescent↗
PubMed1979

[Pulmonary valve atresia with intact interventricular septum in the grown child and the adult].

Atresia of the pulmonary valve with an intact interventricular septum is a rare cyanotic congenital cardiac malformation. Rare at birth, it is exceptionally rare for cases to survive over 5 years. Three cases of porlonged survival aged eleven nineteen and thirty-four years are reported. In the latter case, the abnormality was probably aquired. Prolonged survival is related to a collateral pulmonary circulation. Surgical treatment is discussed with respect to the anatomical features. Good results were obtained in the two operated cases.

Adult↗
PubMed1979

[Partial anomalous pulmonary venous drainage of the left lung into the innominate vein (author's transl)].

From 5 cases of partial anomalous pulmonary venous drainage of the left lung into the innominate vein, it has been thought of interest to situate this type of venous anomaly among the partial anomalous pulmonary venous drainage classification. It is revealed in 2 different ways. In adults, this malformation sets the problem of the diagnosis of an abnormal chest Xray, without symptom. In children, this vascular abnormality is discovered during the exploration of a congenital cardiopathy which causes the main symptoms. Embryological data are reviewed and statistics of frequency which lead to show that this type of partial anomalous venous drainage is often misunderstood, particularly with regard to anomalous venous drainage of the right lung.

Adult↗
PubMed1977

[Major hockey injuries: a three-year study].

In a major junior hockey team there were 238 injuries in 257 games during the three seasons of 1973-76 (mean number of injuries per game, 0.926). Incapacity from these injuries resulted in a loss of 345 practices and 299 games (mean number per injury, 1.45 and 1.26, respectively). The site of the game, whether at home or out of town, and the period in which the injury occurred did not seem to be important. Risk of injury seemed to be greatest in the defensive zone. Forwards were the most often injured, their injuries accounting for 45.8% of the total; defensive players were next most often hurt (31.9%). The age of the injured players ranged from 16 to 19 years, those 19 years old predominating (42.0%).There were 91 injuries of the lower limb (38.2% of the total), the knee being the site most frequently injured (31 injuries; 34.1% of the 91), and 74 injuries of the upper limb, the shoulder being the site most frequently injured (25 injuries; 33.8% of the 74). The main causes of injury were a blow by the puck (frequency, 21.0%), a check (18.5%), a blow by a stick (14.7%) and a fight (13.4%).

Adolescent↗
PubMed1975

[Hemodynamic aspect of infundibular hypertrophy of pulmonary valve stenosis].

Reactional infundibular hypertrophy in pulmonary valve stenosis is usually assessed on the catheterization curves obtained in the infundibulum and in the inflow tract of the right ventricle. It is usually indicated by a peculiar pattern of the infundibular curve: its descending branch is more rapid than in the inflow tract and is slightly curvilinear. This deformity is the more marked the more intense the hypertrophy. Simultaneously a mid-late systolic murmur is recorded into the infundibulum the more intense and high-pitched the more marked the hypertrophy. Comparison with the angiocardiographic data and the operative findings showed a good correlation.

Angiocardiography↗
PubMed1975

[Study of interventricular septal defects with equal aortic and pulmonary artery pressures. Classification by clinical and computer methods of 70 cases].

Application of various methods of classification to a group of 70 cases of ventricular septal defect with high pulmonary artery hypertension allowed a comparative study between the various methods aiming at distinguishing the forms with low from high pulmonary artery resistance. The reference clinical classification provides supplementary informations derived from the natural or post-operative course and eventually from the microscopic examination. The first automatic classification relies on the study of a single criterion: the pulmonary arteriolar resistance and the systemic resistance ratio. A second classification is based on the attribution of points to some clinical or haemodynamic signs resulting in a score orienting the classification of every individual. Multifactorial analysis methods deal with all the available informations for the overall group, and suppose the use of a computer. The informatic methods make it possible to study the classifying value of every sign. Correlations were established between these various techniques and the medical classification.

Adolescent↗
PubMed1975

[Transposition of great vessels with pulmonary stenosis and interventricular communication. Anatomic and surgical aspects. Apropos of 10 cases].

10 cases of anomalous position of the great vessels are reported. They include 8 cases of d-transpositions, 1 of 1-transposition and 1 anatomically corrected malposition. These cases have in common the combination of a ventricular septal defect with a pulmonary stenosis. The anatomical study (6 of 10 cases) made it possible to describe the type of the VSD (related to a defect of development and/or alinement of parietal on the septal band) and of the pulmonary pathway stenosis. Blalock's anastomosis has made it possible to obtain an improvement in 6 patients. 4 operations of complete cure were undertaken in d-transpositions: 2 Mustard's operations ending in death. 2 operations according to Rastelli's principles with one death and one good result. The case of anatomically corrected malposition died after an attempt at complete cure, in view of a left ventricular hypoplasia. The indication for the type of complete cure was discussed in relation with the anatomical data.

Blood Pressure↗
PubMed1975

[Interventricular communication with systolic occlusion].

Besides the ventricular defects of the "muscular" type with normal pressure values and which close during systole, there are ventricular septal defects in which systolic occlusion might be explained by other mechanisms; there are accompanied either by a stenosis of the outflow tract of the right ventricle (14 cases) or pulmonary hypertension (1 case). The diagnostic data were described, based mainly on the haemodynamic and angiocardiographic study. The hypotheses concerning the mechanism of occlusion in these cases were verified either on post-mortem or operative examinations.

Blood Pressure↗
PubMed1975

[Left juxtaposition of the atria. Apropos of a case with dextroversion, transposition of great vessels, bilateral conus, interventricular communication and pulmonary atresia].

Report of one case of a woman aged 29 years with a severe cyanotic congenital heart disease complicated by brain abscess. The diagnosis of left juxtaposition of the atria combined with dextroversion, a d-transposition of the large vessels and a vestricular septal defect was done pre-operatively. An attempt at a Rastelli's operation was followed by immediate death. The post-mortem examination confirmed the pre-operative diagnosis and demonstrated besides a double conus and a pulmonary atresia. The juxtaposition of the atria was underlined.

Adult↗