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Biomedical subjects

P Jaumin

Publications and source records attributed to P Jaumin.

71 records · Page 4Linked to original sources

Surgical treatment of subvalvular aortic stenosis. Long-term results.

From 1966 till May 1988, 53 patients underwent surgery for fixed subaortic stenosis. Subvalvular obstruction was isolated in 27 patients (Group I) and associated with aortic valve lesions in 26 (Group II). A membranous stricture was documented in 5 patients and a fibromuscular ring in 48. Excision of the ring and myectomy were performed in all patients, and an associated aortic valve replacement or reconstruction in 7 and 4 patients respectively. There were no hospital deaths. Follow-up evaluation in 50 patients ranged from 6 months to 22 years. Eight patients had to be reoperated upon (1 from group I, 7 from group II): aorto-ventriculoplasty was performed in 3, aortic valve replacement with redo myectomy in 3 and mitro-aortic valve replacement in 2. One of them had 2 reoperations. Functional status at the time of the last outpatient visit was most satisfactory. Continued evaluation remains necessary as obstruction may reappear despite the absence of symptoms.

Adolescent↗

Total anomalous pulmonary venous connection. Long-term results following repair under 3 months of age.

The surgical experience with total anomalous pulmonary venous connection (TAPVC) at the University of Louvain (Brussels) between the years 1975 and 1986 is reviewed. Nineteen patients aged two days to three months with TAPVC were studied. The types of TAPVC were supracardiac in 9 patients, cardiac in 4, infracardiac in 4 and mixed in 2. Profound hypothermia induced by surface cooling, limited cardiopulmonary by-pass and total circulatory arrest were used in all cases. The 4 early deaths concerned the first four neonates who were critically ill. All operative survivors are followed for a mean of 3.5 years (12 months to 8 years). There are two late deaths due to reoperation for pulmonary venous obstruction. All 13 survivors are well at last review. Eleven of them have been recatheterized 4 to 33 months after repair (19 months in average). The pulmonary artery and capillary pressures fell to a normal level after a few months. Ventricular function which was markedly depressed preoperatively, was evaluated by quantitative angiocardiography and echocardiography. It returned to normal late postoperatively. The hospital mortality for the repair of TAPVC in the neonates remains appreciable. Total correction at one operation is advisable. The incidence of postoperative pulmonary venous obstruction is of particular concern. The late postoperative functional and hemodynamic results are excellent. The repair of TAPVC can be considered curative.

Age Factors↗

Comparative results after endarterectomy of the internal carotid artery performed with or without a shunt.

One hundred endarterectomies of the internal carotid artery have been performed from March 1984 to December 1985; 50 were carried out with a Javid shunt, and 50 were performed without using a shunt. There was no peroperative or hospital deaths. Five operations performed with the use of a shunt and 4 performed without a shunt were followed by a central nervous system deficit. The frequency of central neurological complications is thus not statistically different, but the time of onset and the likely cause of the deficit are different.

Aged↗

[Role of catheterization and pneumoangiography in moderately severe pulmonary embolism].

In patients with moderate pulmonary embolic disease, angiography is regarded as the most reliable procedure for establishing the diagnosis. Digital subtraction angiography (DSA) is easier to perform than conventional pneumoangiography (presently carried out in some selected cases only) and has become the diagnostic procedure of choice for pulmonary embolism. DSA achieves satisfactory results and is still more accurate when it is performed after perfusion/ventilation lung scans. In patients with acute embolus, usually hospitalized in the intensive care unit. Swan-Ganz catheterization provides the clinician with a great degree of haematologic information that enables him to select the appropriate therapeutic choice, which most often has to be determined in emergency.

Angiography↗

[Pulmonary embolectomy. Clinical experience].

Between 1969 and 1984, twenty-three patients underwent an emergency pulmonary embolectomy under extracorporeal circulation in the Catholic University of Louvain (UCL), Department of Cardiovascular and Thoracic Surgery. The aim of this paper is to delineate the indications of this procedure. Patients were 23 to 70 years old. Diagnosis of Pulmonary Embolism was made according to clinical signs, ECG and Chest X Ray with Swan-Ganz catheter insertion into the pulmonary artery and the help of pulmonary angiogram if time permitted. The surgical technique is briefly described. Four patients died during the immediate postoperative period and three died later. The sixteen survivors all enjoy a normal life.

Adult↗

[Hemodynamics and massive pulmonary embolism].

In massive pulmonary embolism, the hemodynamic evaluation means a Swan-Ganz catheter and echocardiography, may be indicated as a hemodynamic assessment in correlation to the degree of obstruction and as a therapeutic guideline. Some figures demonstrate the importance of some hemodynamic parameters in order to choice the adequate therapy. Inconvenience and precautions of the method are shortly mentioned.

Bronchi↗

[Treatment of the first episode of pulmonary embolism in the hospital. Anticoagulants, anti-platelet aggregation drugs and thrombolysis stimulants].

The treatment of the first pulmonary embolic accident in Hospital consist in the administration of anticoagulants. Heparin will be first used intravenously or subcutaneously during 10 to 12 days and will be followed by oral anticoagulants (VKA) during 3 to 12 months. These treatments must be controlled following national or international standardized technics and can be associated with antiplatelet drugs or thrombolytic activators. The most important and frequent complications observed are haemorrhages. They are consecutive to a non conformed administration of the drugs or overdosage bound to a non correct control or drugs interferences or to a misappreciated counterindication. They will be corrected in most of the cases by a simple anticoagulant dosage reduction and exceptionally by the interruption of the therapy with administration of antidotes and plasma substitutes. Other complications are extremely rare and bound to the nature of the drugs used.

Anticoagulants↗

[Coarctation of the aortic isthmus in the adult].

Forty four patients over the age of eighteen operated upon for coarctation of the aorta from 1962 to 1983 at our institution were followed for one to 21 years (mean 13 years 3 months). Hypertension was found in 86% of the patients and 82% were preoperatively symptomatic. There were three late deaths. During the follow-up period, drug resistant hypertension persists in 31% of the patients at rest and/or exertion and 18% have functional symptoms. These data emphasize the importance of early diagnosis and treatment for patients with coarctation of the aorta.

Adolescent↗

Correction of tetralogy of Fallot after Waterston shunt.

The authors have reviewed their experience concerning twenty-seven patients who underwent intracardiac repair of Fallot's Tetralogy after a previous Waterston shunt. They are divided into 4 groups according to the classification of Shinebourne, Anderson and Bowyer. The risk factors are analyzed in group 1 patients in whom primary total correction is contra-indicated and in whom the mortality at repair is high in presence of kinking of right pulmonary artery. The type of surgery is still debatable. For the symptomatic patients of the other groups, primary total correction at any age seems, at this time, to be the treatment of choice. The contra-indications are an anterior descending coronary artery arising from the right coronary artery or associated complex anomalies which would make total correction difficult.

Aorta↗

Early surgery for severe aortic regurgitation.

One hundred and fourteen consecutive patients who underwent aortic valve replacement (AVR) for isolated aortic regurgitation (AR) from 1965 to 1981 are presented. Sixty eight (60%) were preoperatively in NYHA class I-II and 46 (40%) were in NYHA class III-IV. Eighty-two patients had left and right heart catheterization prior to the operation and the severity of regurgitation was assessed angiographically in 93% of those in functional class (FC) I-II. Left ventricular (LV) end-diastolic volume index and end-systolic volume index were elevated even in the mildly symptomatic patients (156.1 and 61.0 ml/m2 respectively). The ratio of LV end-systolic pressure to LV end systolic volume index was diminished in the FC I-II patients. Two patients in FC III died in hospital (operative mortality: 1.7%) and there were 21 late deaths with a 5-year survival of 82.7%. Late survival differed significantly between patients who were preoperatively in FC I and II or III and IV (P less than 0.03). These data suggest that severe AR with altered LV function is an indication for early operation regardless of the presence of absence of symptoms.

Adolescent↗

[Circulatory arrest under deep hypothermia in the correction of the interventricular communication in the newborn (author's transl)].

The technique of circulatory arrest under deep hypothermia has completely changed the therapeutic outlook of some congenital heart malformations in the newborn. The authors have tried this method particularly in neonate cases of the interventricular communication. This experience bears on ten newborn cases aged 3 to 11 months. Surgical indication was mandatory because of global heart failure, unresponsive to conservative treatment. Intracardiac correction is realized under optimal conditions of operative technique by means of the circulatory arrest. In six cases, the interventricular communication is large and isolated; in four cases there were multiple interventricular communications. The immediate postoperative is favourable in all cases. One was reoperated for a residual shunt. Evolution is satisfactory in nine cases. There was one late death. Hemodynamic controls prove the soundness of this method of treatment. Favourable results up to 2 1/2 years after the procedure encouraged the authors to extend the indications for deep hypothermia and circulatory arrest to other congenital anomalies of the newborn.

Anesthesia, Inhalation↗

Surgical treatment of mitral stenosis.

Analysis of 239 patients who underwent a commissurotomy for mitral stenosis (196 closed technique, 43 open technique). Total operative mortality was 2%. Long term follow-up is illustrated by an actuarial survival curve and long-term functional results are studied up to 15 years after operations. It allows the authors to consider commissurotomy alone as a good palliative procedure with good functional results in the majority of cases. However, in view of the collected data, they now elect to restudy all the patients 6 years after the primary correction and to perform a heart catheterization to consider appropriate reoperation in some cases.

Adult↗

Tricuspid valve surgery.

Our purpose was to study the long-term results of the tricuspid valve replacement. It is obvious that tricuspid annuloplasty (Kay, De Vega) has its place in the treatment of functional tricuspid insufficiency that accompanies mitral or mitral and aortic valve disease. The Carpentier ring appears justified for some cases. However tricuspid valve replacement can be the operation of choice for some patients. Our study demonstrated that the Björk-Shiley and Starr-Edwards prostheses remain good substitutes in tricuspid valve surgery and that the long-term results are better than it was anticipated a decade ago.

Adult↗