Biomedical subjects

F Rauscha

Publications and source records attributed to F Rauscha.

40 records · Page 3Linked to original sources

PubMed1987

Evaluation of esophageal tracheal combitube in cardiopulmonary resuscitation.

Prompt establishment of an airway is a primary goal in CPR of nonbreathing and unconscious patients. The esophageal tracheal combitube (ETC) is a new airway, designed for emergency intubation providing sufficient ventilation whether the airway is placed into the trachea or into the esophagus. We evaluated the effectiveness of the ETC in 31 patients during CPR. Blood gas analyses obtained during esophageal placement of the ETC showed results comparable to those of ventilation with a conventional endotracheal airway (ETA). The ETC appeared to oxygenate and ventilate patients adequately without complications. The efficacy, safety, and ease of insertion ensure rapid airway control. It is concluded that the ETC provides a sufficient alternative to the ETA whenever ideal conditions or trained staff for endotracheal intubation are not immediately available.

Aged↗

PubMed1984

Diagnostic value of exercise testing versus long-term ECG in evaluation of arrhythmias in old age.

The usefulness of exercise testing (ET) in old age is so far undefined particularly for detection of arrhythmias. We compared the diagnostic value of ET with 24-h long-term ECG recording (LT-ECG) in patients older than 70 years that were evaluated because of symptoms possibly related to arrhythmias. In 37 patients (age 72.8 +/- 2.7 years) the incidence of ventricular arrhythmias (LOWN greater than or equal to 1) was greater during ET (67%) than during 24-h LT-ECG recording (48%, P less than 0.01). Complex ventricular arrhythmias were detected in 6/37 patients (16%) by ET, in 9/37 patients (24%) by LT-ECG, in one patient (3%) by both tests and in 14/37 patients (37%) by one of the two tests, while 23/37 patients (63%) had no significant complex arrhythmias recorded by either test. During ET 12 patients (32%) showed signs of myocardial ischaemia with ST-depression greater than or equal to 0.2 mV and/or increasing angina pectoris. In 42% of these patients complex ventricular arrhythmias LOWN greater than or equal to 3 occurred during ET. Thus both ET and LT-ECG are useful methods to uncover arrhythmias in symptomatic patients older than 70 years and have to be considered as complementary tools.

Aged↗

PubMed1984

[Ergometry and long-term ECG for assessing bradycardiac and tachycardiac heart rhythm disorders in symptomatic patients over 70].

The usefulness of exercise testing and long term-ECG recording in old age was evaluated in a retrospective study. During a period of 24 months 317 long-term-ECGs in 195 patients greater than 70 years and 208 exercise tests in patients greater than 70 years were performed. The mean age of the patients was 73 +/- 3 years. Long-term ECG revealed a high incidence of supraventricular arrhythmias, while PVCs were found in only 28.7% of patients and PVCs greater than 30/h in only 7.3% of patients. Complex ventricular arrhythmias occurred in 25% of patients. Long-term ECG recording appeared to be of particular value in detecting abnormal regulation of heart rate and bradycardia, although symptom correlation with arrhythmias recorded was rare. Exercise testing revealed a higher incidence of PVCs with PVCs recorded in 67% of patients and PVCs greater than 2/min in 42% of patients. The incidence of complex ventricular arrhythmias was slightly greater compared to long-term recording with 29% of all patients. Exercise testing was particularly useful in detecting complex arrhythmias in patients with additional signs of myocardial ischemia (ST-segment depression and/or angina pectoris during increasing levels of exercise). Thus comparing both exercise testing and long-term ECG both appeared to be useful methods to uncover arrhythmias in symptomic patients older than 70 years and have to be considered as complementary tools. Exercise testing is particularly useful in recovering complex ventricular arrhythmias in patients with signs of myocardial ischemia during exercise. Long-term ECG on the other hand allows better recognition of bradycardias and conduction defects that may also be present and may contribute to the patients symptoms.

Aged↗

PubMedDate not supplied

Beneficial effect of PGI2 on circulating endothelial cells.

Endothelial damage is an early event in atherogenesis. Recent data present evidence that the counting of circulating endothelial cells in human peripheral blood may provide reliable information about endothelial integrity. We therefore assessed the influence of PGI2 on the number of circulating endothelial cells in patients suffering from peripheral vascular disease. As cigarette smokers and patients with hyperlipoproteinemia show an increased number of circulating endothelial cells, they were excluded from this investigation. PGI2 causes a certain drop in circulating endothelial cells. In parallel, a prolongation in platelet half-life can be noted. This is most pronounced at a daily duration of infusion between 4 an 12 h. A shorter duration of PGI2 therapy is less effective in reducing circulating endothelial cells. All of the three different doses used, however, were equally effective. Placebo controls were ineffective. These findings indicate that PGI2 might exert a rather long-lasting beneficial action on endothelial integrity and the hemostatic balance.

Adult↗