[A study of 11 ventilators for anesthesia: laboratory testing].

Eleven anaesthesia ventilators were instrumentally tested under various conditions. They included: Excel and Modulus II Plus (Ohmeda); 710 and Servo anaesthesia circle 985 (Siemens); Jollytronic (Soxil) and Elsa (Engström); SA2 and Cicero (Dräger); ABT 4,300 (Kontron); Monnal A and the prototype Alys (Taema). The test circuit comprised a two compartment model lung, a pneumotachograph, a pressure gauge in the "airway".

[Spinal anesthesia and prevention of thrombosis by heparin].

Non traumatic spinal hematomas are a rare pathology, anticoagulant treatments are one of their most frequent etiology. Therefore, the association of spinal anesthesia and a preventive treatment which has antithrombotic aim by the use of subcutaneous heparin (non fragmented or low molecular weight) is being discussed by many authors. It is lawful to associate spinal anesthesia with a soft dose of non fragmented subcutaneous heparin (Kakkar method) if the protocols are strictly respected.

Transcutaneous cranial electrical stimulation decreases narcotic requirements during neurolept anesthesia and operation in man.

The influence of transcutaneous cranial electrical stimulation (TCES) on fentanyl requirements was evaluated in 50 patients undergoing urologic operations with pure neuroleptanesthesia (droperidol, diazepam, fentanyl, and air oxygen) with (group I) or without (group II) simultaneous TCES. All patients had silver electrodes (three) applied between the eyebrows and behind each mastoid process and attached to a 167-kHz current generator. Current was delivered only to group I.

Transcutaneous cranial electrical stimulation increases the potency of nitrous oxide in humans.

The potency, amnesic, and postanesthetic analgesic effects of transcutaneous cranial electrical stimulation (TCES) were evaluated during N2O anesthesia in 120 unpremedicated patients, prior to urologic or general surgical operations. The patients were divided into six groups of 20 each with respect to what concentration of N2O in oxygen they were allowed to breathe (75, 62.5, and 50%), and whether they were or were not stimulated with TCES.

[Transurethral resection of the prostate (turp syndrome), myth or reality? Analytic studies using a radioactive isotope method (author's transl)].

It is accepted that the laboratory and clinical so-called "transurethral resection syndrome" reflects passage into the body of a large fraction of the water used to perfuse the field of endoscopic resection. The major complete syndrome (dyspnoea, nausea, hypertension, raised central venous pressure, bradycardia then pulmonary oedema, cerebral oedema, cardiovascular shock and renal insufficiency) is rare: 1.5 per cent of cases of transurethral resection of the prostate in the literature, 0.

[Technics of anesthesia and hypothermia for the infant. Choice of replacement fluid for the circuit].

Sixty-five infants were submitted to complete repairment of a congenital cardiopathy under profound hypothermia and ECC. Description of the preparation of the young surgical patient, of the anesthesia, of the technique of ECC. The overall mortality was 35.

[Anantomical aspects and surgical treatment of pulmonary stenoses and atresias with intact interventricular septum in the newborn and the infant under 6 months].

The series presented consists of 25 babies (18 of which were neonates), seen between 1972 and 1974. The anatomical and angiographic study revealed 5 anatomical types, according to whether the pulmonary orifice was patent or atretic, and according to the size of cavity of the right ventricle, which may be normal or reduced (perhaps almost totally). The diagnostic clinical features and findings on angiography are recalled.

[Atheromatous stenosis of the left coronary trunk. 28 surgical cases].

22 patients with atheromatous narrowing of the left coronary trunk underwent surgery between 1969 and 1974. Most of these patients had severe and incapacitating angina pectoris. The clinical features are readily explained by the size of the diffuse anatomical lesions, which are to be found on the left coronary trunk as well as on the three coronary vessels themselves.