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Biomedical subjects

H Vettermann

Publications and source records attributed to H Vettermann.

6 recordsLinked to original sources
PubMed1982

[Indications of valvular pulmonary stenosis on plain chest films (author's transl)].

Plain chest films of 87 children aged 4-14 years with valvular pulmonary stenosis proved by cardiac catheterization and of an age matched control group of 92 healthy children were evaluated in a retrospective study. Up to 4 years the evaluation was impaired by the overlying thymus. The evidence of poststenotic dilatation of the pulmonary trunk and the left pulmonary artery branch together with a normal or increased left sided perihilar pulmonary vascularity is essential for the diagnosis of valvular pulmonary stenosis. The pulmonary trunk showed marked dilatation in 47 cases, mild dilatation in 11 cases and no dilatation in 21 cases. A cranial displacement of the pulmonary trunk which partially reached or overlapped the aortic knuckle was seen in 44 children. 50 children showed a hilar enlargement due to the poststenotic dilatation of the left pulmonary artery branch. 1/5 of the children showed extension of the poststenotic enlargement into the left sided segmental artery branches. Cardiac size, calculated by heart volume, was within age specific limits. No correlation was found concerning the severity of the stenosis and the radiographic findings. Indications of valvular pulmonary stenosis increased with the age of the child.

Adolescent↗
PubMed1978

The size of the aortic arch: a suitable criterion for differentiating between congenital heart diseases with left-to-right shunt?

A retrospective study was carried out to determine whether aortic arch size can be regarded as a reliable criterion for differentiating between congenital left-to-right shunt defects. The PA and AP plain chest films of children of all age groups with ductus arteriosus persistens (DAP) (n = 91), atrial septal defect (ASD) (n = 86), ventricular septal defect (VSD) (n = 87) and a normal control group (n = 387) were used to measure the size of the aortic arch, and an aortic index (AI) was calculated from aortic arch size and the height of the eighth thoracic vertebral body. Three age classes were defined from the AI values of the control group, and the diagnostic groups in each age class were compared with each other. Enlargement of the aortic arch, as reflected in an elevated AI value, was found most frequently in DAP cases. The size of the aortic arch is, however, of varying differential diagnostic value, depending on the age group. No correlation was found between aortic arch size and the size of the left-to-right shunt in cases of DAP.

Adolescent↗
PubMed1976

[An analysis of the plain chest films of 109 children with atrial septal defect. The correlation between different radiological criteria and shunt size (author's transl)].

Radiograms of the chest (p.a.--and lateral projection) of 109 children with atrial septal defect taken before cardiac catheterisation have been evaluated under standardized principles; correlation between size of the left-to-right shunt and the radiographic changes has been performed. The examiner evaluated at random radiographs of 213 subjects, of whom 104 had no cardiac disease. Besides the determination of several radiographic criteria the examiner had to decide whether the subject in question had cardiac abnormalities or not. There has been a statistically significant correlation between the size of shunt-volume and the amount of radiographic changes as: 1. pulmonary vascular markings, 2. size of the right ventricle in the lateral projection, 3. cardiac configuration in the p.a.-projection, 4. relative cardiac volume, 5. size and shape of the pulmonary artery segment, 6. size of the aortic arch. The highest diagnostic value is represented by pulmonary vascular markings; this is of great importance. Because pulmonary vascular markings can be in any age group evaluated on technically good radiographs. 78% of the atrial septal defects could be detected by radiographic criteria. In 5% of the children with no cardiac disease a vitium cordis had been diagnosed erroneously.

Adolescent↗