[Retrospective study of 412 aortic valve replacements by Bjork-Shiley prosthesis implanted between January 1972 and October 1984. Actuarial survival, mortality, complications].

Between January 1972 and October 1984, 412 aortic valve replacements by Bjork-Shiley disk prosthesis were performed. 183 patients suffered from aortic incompetence, 132 from an aortic disease and 97 from aortic stenosis. 116 associated procedures (28%) were performed = 36 myocardial revascularizations, 61 Bentall operations, 12 patch grafts to the ascending aorta and 7 Wheat operations.

[Use of elastic laces with attached needle in coronary surgery].

Using elastic laces with attached needle for surgery of the coronary arteries ensures adequate exposure, presentation and drying up of these vessels during distal anastomosis.

[Mediastinal surgery in children].

From 96 surgical interventions in the child, the authors studied the repartition of tumours according to their histological nature, their benignity or malignancy. For each kind of tumour they gave its frequency and clinical, radiological and biological data. Above all they studied the distant results of these interventions with an important set back.

[Surgery of 19 bilateral simultaneous pulmonary metastases].

19 patients with bilateral simultaneous pulmonary metastases were operated on between 1954 and april 1976 at the Marie-Lannelongue surgical centre. Sarcomas were twice as common as carcinomas. In 10 cases the thoracotomy was only unilateral, either because thoracotomy was not attempted on the other side owing to the diffuse nature of the lesions (8 cases) or because prior chemotherapy had permitted complete reduction of the metastases on the opposite side (2 cases).

[Profile of surgical tumors of the mediatinum. Apropos of a series of 742 operated patients].

The authors seek to draw statistical conclusions on the basis of 742 surgically treated mediastinal tumours. Tumours of the thymus were the most common (20%). They were followed by tumours of the thyroid, neurogenic tumours, haematosarcomas and mediastinal cysts - all with an occurrence rate of around 12 to 15%.

[Surgical treatment of pulmonary metastases from rectocolic cancers. Apropos of 21 cases].

The authors report 21 cases of pulmonary metastases from operated cases of rectal and colonic carcinoma. Half the patients were aged between 60 and 70 years. In all cases except one the primary tumour was known and treated surgically before the metastasis occurred.