[Surgical treatment of cerebrovascular insufficiency due to extracranial obstruction of the carotid artery(author's transl)]. / Zur chirurgischen Behandlung der zerebrovaskulären Insuffizienz infolge extrakranieller Strombahnhindernisse der Arteria carotis

Reconstruction of the carotid artery was performed in 41 patients (between 1967 and 1974). All had had signs of cerebrovascular insufficiency. There was angiographic evidence of obliterating arteriosclerotic lesions in the carotid artery of 32 patients, carotid aneurysm in two, kinking of the internal carotid artery in four, and acute thromboses of the carotid artery in three. Early and late results indicate that best chances of success exist for stage II and III a cases. The high mortality rate in stages III b and IV (five of twelve patients) clearly shows that in these reconstruction of the carotid artery should be embarked on with caution, especially in the early stages.

[The effect of ischemic and cardioplegic heart standstill on the myocard metabolism in normal and less perfused heart (author's transl)]. / Die Wirkung des ischämischen und kardioplegischen Herzstillstandes auf den Myokardstoffwechsel bei gesunden und minderdurchbluteten Herzen

The tolerance of ischemia in normal and less perfused myocard during an ischemic and cardioplegic heart standstill was investigated. A decrease of ATP and ADP and an increase of the lactate, pyruvate and AMP was established during an ischemia of 20 minutes. The less perfused hearts gave considerably worse results regarding the energy transformation than normal hearts. In less perfused hearts the energy reserve of myocardial metabolism showed a considerably better behaviour during a cardioplegic heart standstill of 45 minutes than an ischemic one of 20 minutes. During the recuperation period this trend was emphasised.