Impact of Dipyrone Administration on Postoperative Analgesia and Aspirin Effect in Patients Undergoing Coronary Artery Bypass Grafting: The Prospective Randomized DipASA Study.

Objective: The aim of the study was to investigate the impact of dipyrone administration on postoperative analgesia and acetylsalicylic acid (ASA) effect in patients undergoing coronary artery bypass grafting (CABG).

Design: A prospective randomized study.

Setting: Single-university hospital setting.

The complex intervention day hospice - a quality-assured study on the implementation, realization, and benefits with model character for Germany (IMPULS) using the example of "Day hospice Adiuvantes".

Background: Currently, a conclusive experience on the uniform implementation and benefits of day hospice structures and interventions is lacking in Germany. The following questions should be clarified: (1) Which structural conditions and interventional measures should be established in day hospices from the point of view of patients, relatives, and specialist staff?; (2) Are the planned structures or interventions feasible and implementable under real conditions and accepted by patients, relatives, and staff?; (3) How can a final implementation and intervention catalog for day hospices be designed?; (4) Is this final catalog of services feasible, reasonable, economical, and effective under everyday conditions in day hospices?

Methods: We planned to perform a multistage investigation, guided by the Medical Research Council Framework for the development and evaluation of complex interventions. In Stage 1, an initial theoretical construct on structures and interventions will be established through an extensive literature and guideline review on day hospices and through qualitative interviews.