Biomedical subjects
Publications and source records attributed to M Andersen.
Ninety-seven children six to 10 years old received monovalent influenza A/New Jersey/76 virus vaccine by jet injector. Comparison with groups receiving vaccine intramuscularly revealed that local reactions (tenderness and erythema) were more frequent and more severe in the group vaccinated by jet injector. Antibody response, however, was similar for all groups.
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Thirty-nine patients with a small ASD of the secundum type were followed clinically for 5 to 21 years (mean 11.6 years); no evidence of deterioration was found. In 26 of these cases recatheterization was carried out with a mean follow-up period of 9.8 years. No significant changes were found in most patients; in four patients, however, the left-to-right shunt had increased significantly. Our recommendations are that we will continue to advise surgery in patients with large ASD's, whereas we still do not recommend surgery in patients with small ASD's; the latter patients should be followed for longer periods to ensure that no deterioration occurs. The decision as to whether an ASD should be regarded as large or small in our opinion not only should be based on a chosen limit of pulmonary-to-systemic flow ratio, but clinical factors such as diastolic flow murmurs, ECG changes, the heart size, and the pulmonary vascular markings should also be taken into consideration.
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Follicular fluid aspirated from large cow follicles inhibits endogenous, DNA-dependent RNA polymerase activity in Yoshida ascites cells. The inhibitory component of follicular fluid is probably a protein and appears to affect specifically the activity of the nucleoplasmic polymerase II.
Lithium is known to produce T wave changes in the ECG, whereas effect upon the conducting system of the heart has not been described. In our patient lithium produced sinoauricular block and possibly tachycardia. The correlation between lithium treatment and tachyarrhythmias is discussed. When during lithium treatment block is found, the treatment should preferably be stopped, but if this is not possible it is important to realize that digitalis should not be used as a prophylactic drug against tachycardia, as it worsens the block and therefore increases the frequency of arrhythmia, even leading to Adams-Stokes attacks.
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