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Biomedical subjects

U Mennicken

Publications and source records attributed to U Mennicken.

At least 37 records · Page 2Linked to original sources

[Cardiac catheterization of neonates and young infants using a flow-directed balloon catheter (author's transl)].

In cardiac catheterization with the Swan-Ganz-flow-directed balloon catheter the aorta or, in transposition of the great arteries, the pulmonary artery was entered from the left ventricle with a special heart catheterization technique in 68 neonates and young infants. In the same way selective aortography was performed in 29 of these patients. This catheterization technique has the following advantages: 1. the complete evaluation of complex cardiac anomalies even in neonates, 2. selective aortography avoiding the retrograde arterial catheterization, 3. reducing the risk of cardiac perforation or myocardial staining due to the contrast injection using the usual semirigid catheters. Balloon rupture or knotting are specific but avoidable complications.

Age Factors↗

[Chronic tonsillar hypertrophy as a cause of cor pulmonale, pulmonary oedema, and hypersomnia in children (author's transl)].

Chronic hypertrophied tonsils and adenoids causing partial airway obstruction produced serious illness and a confusing clinical picture in a 51/2-year-old boy. Cardinal signs were cor pulmonale, pulmonary oedema and marked cardio-respiratory changes due to hypoxaemia and hypercapnia, in addition to hypersomnia. Marked improvement of the clinical picture and the abnormal signs followed directly upon tonsillectomy and adenoidectomy. Chronic alveolar hypoventilation is presumably the main cause of the described condition and of others of extracardiac origin with similar signs and symptoms.

Adenoidectomy↗

[Aplasia and hypoplasia of the lung (author's transl)].

The different forms of aplasia and hypoplasia of the lung are described. Differences in anatomic structure, prognosis and concomitant congenital anomalies suggest two special forms of hypoplasia of the lung: a) aplasia of one lobe of a lung with hypoplasia of the rest of the lung--b) hypoplasia of all parts of a lung. Bronchographic and angiographic studies are necessary for the differentiation between the special forms of hypoplasia of a lung and diseases with similar radiographic findings. The possible combination of hypoplasia of one lung with ipsilateral anomalies is pointed out.

Bronchography↗

[Catheterization of the artery originating from the left ventricle by means of flow-directed catheter. A new technic].

The described heart catheterization technique with the Swan-Ganz-flow-directed catheter allows the catheterization of the aorta or, in transposition of the great arteries, the pulmonary artery, from the left ventricle via a venous entrance form the saphenous vein if an interatrial connection exists (patent foramen ovale, atrial septal defect). With the help of a stiff steel guide wire rail it is possible in the apex of the left ventricle to bend the catheter sharply toward the outflow tract. This technique was used on 51 children. Every catheterization attempt was successful . It is possible by avoiding the retrograde arterial catheter technique carry out to the complete examination of the left heart and the great artery via a venous entrance.

Cardiac Catheterization↗