The association of off-hour vs. on-hour intensive care unit admission time with mortality in patients with cardiogenic shock: a retrospective multi-centre analysis.

AIMS: Studies have shown a so-called off-hour effect for many different diseases, but data are scarce concerning cardiogenic shock. We therefore assessed the association of off-hour vs. on-hour intensive care unit admission with 30-day mortality in patients with cardiogenic shock. METHODS AND RESULTS: In total, 1720 cardiogenic shock patients (666 admitted during off-hours) from two large university hospitals in Germany were included in retrospect. An admission during off-hours was associated with increased 30-day mortality compared to an admission during on-hours [crude mortality 48% vs. 41%, HR 1.17 (1.03-1.33), P = 0.017]. This effect remained significant after propensity score matching (P = 0.023). Neither patients with a combined SCAI stage D and E (P = 0.088) or C (P = 0.548) nor those requiring cardiopulmonary resuscitation (P = 0.114) had a higher mortality at off-hour admission. In contrast, those without veno-arterial extracorporeal membrane oxygenation [HR 1.17 (1.00-1.36), P = 0.049], without acute myocardial infarction [HR 1.27 (1.02-1.56), P = 0.029] or a with combined SCAI stage A and B [HR 2.23 (1.08-4.57), P = 0.025] had an increased mortality at off-hour admission. CONCLUSION: Our study showed an increased mortality in patients with cardiogenic shock admitted during off-hours, especially in those with a milder onset of disease. This stresses the importance of a thorough workup of each patient, especially at times of limited resources, the menace of underestimating the severity of cardiogenic shock, and the need for an improved 24×7 available risk stratification.

[Reporting ethics board approval in German medical theses and journals]. / Erwähnung des Ethikvotums in deutschen medizinischen Dissertationen und Publikationen.

Since 1975, the Declaration of Helsinki of the World Medical Association (WMA) has clearly required ethics committee approval for research into humans. Nevertheless, this Declaration is violated quite often. As many English-language publications have addressed the theme of ethics board approval in theses and other published works, it is now to be investigated in Germany for the first time.From 2013 to 2014, a total of 1,482 medical theses at four selected universities in addition to three German-language scientific journals were reviewed. In 543 theses, reference to ethics approval would have been required according to the criteria of the Declaration of Helsinki.However, ethics approval was stated in only 58.7% of cases, and even less frequently if the prevailing doctoral regulations or instructions did not refer to the necessity of obtaining ethics approval. Theses on pediatrics mentioned ethics approval most frequently (78.6%), whereas the proportion of surgical papers was the lowest (34.9%). Among the journals, Der Nervenarzt mentioned ethics approval most frequently (59.4%) and Der Chirurg least frequently (30%).Our results point to significant deficits in mentioning ethics approval in medical theses and publications. These deficits could easily be compensated for by a thorough approach of the referees of doctoral regulations and by journal reviewers and editors.