Biomedical subjects

H Hirzel

Publications and source records attributed to H Hirzel.

3 recordsLinked to original sources

PubMed1991

[Developments in mitral valve surgery].

Between 1987 and 1990 we operated on 104 patients for mitral valve disease. If possible the valve was reconstructed according to CARPENTIER's technique: 8 of 28 stenotic, 43 of 57 regurgitant and 2 of 7 mixed lesions were repaired. Twelve patients underwent re-replacement of a previously inserted mitral prosthesis. Six patients died early (7.8% after replacement, 8% after isolated replacement, 3.7% after repair and 2% after isolated repair). Five of these six patients were in NYHA class IV preoperatively. Seven patients died late after a mean observation period of 18 months (5 after replacement, 1 after double valve replacement and 1 after repair and multiple coronary bypass surgery). Prognosis is best for patients whose valve can be repaired and who are not already in NYHA class IV. The postoperative NYHA class for surviving patients is excellent (1.3 in the replacement group and 1.2 after repair).

Adult↗

PubMed1978

[Percutaneous transluminal dilatation of chronic coronary stenoses. First experiences].

The technique of percutaneous transluminal dilatation of coronary artery stenosis consists of a catheter system introduced via the femoral artery under local anesthesia. A preshaped guiding catheter is positioned in the orifice of the coronary artery and through this a dilatation catheter is inserted into the branches if the artery. This dilatation catheter (outer diameter 0.5--1.25 mm) is equipped with a sausage-shaped distensible segment (balloon) at the tip. The balloon is inflated to a pressure of 5 atm. This pressure compresses the atherosclerotic material in a direction perpendicular to the wall of the vessel, therby dilating the lumen. Up to now 29 patients have been treated with primary success in 23 (79%) and long-lasting success in 21 (72%). Three patients underwent emergency coronary surgery to avoid infarction. Dilatation is indicated in patients with disabling angina which jeopardizes their quality of life and with coronary lesions which are proximal, subtotal, concentric and non-calcified.

Angiography↗

PubMed1976

[Reanimation outside the hospital by the mobile intensive care station in Zurich].

Of 502 patients handled by a mobile intensive care unit, 70 were resuscitated: 20 immediately, 9 within 3 min and 41 later than 3 min from onset of cardiac or respiratory arrest. There were 9 temporary and 10 longterm survivors among the 29 patients who underwent resuscitative measures within 3 min of collapse. First-aid training programs in resuscitation methods are a necessary supportive measure to the operation of mobile intensive care units.

Coronary Care Units↗