Obstacles to patient inclusion in CPR/DNAR decisions and challenging conversations: A qualitative study with internal medicine physicians in Southern Switzerland.

Despite cardiopulmonary resuscitation (CPR) and do-not-attempt-resuscitation (DNAR) decisions are increasingly considered an essential component of hospital practice and patient inclusion in these conversations an ethical imperative in most cases, there is evidence that such discussions between physicians and patients/surrogate decision-makers (the person or people providing direction in decision making if a person is unable to make decisions about personal health care, e.g., family members or friends) are often inadequate, excessively delayed, or absent. We conducted a study to qualitatively explore physician-reported CPR/DNAR decision-making approaches and CPR/DNAR conversations with patients hospitalized in the internal medicine wards of the four main hospitals in Ticino, Southern Switzerland. We conducted four focus groups with 19 resident and staff physicians employed in the internal medicine unit of the four public hospitals in Ticino. Questions aimed to elicit participants' specific experiences in deciding on and discussing CPR/DNAR with patients and their families, the stakeholders (ideally) involved in the discussion, and their responsibilities. We found that participants experienced two main tensions. On the one side, CPR/DNAR decisions were dominated by the belief that patient involvement is often pointless, even though participants favored a shared decision-making approach. On the other, despite aiming at a non-manipulative conversation, participants were aware that most CPR/DNAR conversations are characterized by a nudging communicative approach where the physician gently pushes patients towards his/her recommendation. Participants identified structural cause to the previous two tensions that go beyond the patient-physician relationship. CPR/DNAR decisions are examples of best interests assessments at the end of life. Such assessments represent value judgments that cannot be validly ascertained without patient input. CPR/DNAR conversations should be regarded as complex interventions that need to be thoroughly and regularly taught, in a manner similar to technical interventions.

A data-driven approach to identify risk profiles and protective drugs in COVID-19.

As the COVID-19 pandemic is spreading around the world, increasing evidence highlights the role of cardiometabolic risk factors in determining the susceptibility to the disease. The fragmented data collected during the initial emergency limited the possibility of investigating the effect of highly correlated covariates and of modeling the interplay between risk factors and medication. The present study is based on comprehensive monitoring of 576 COVID-19 patients. Different statistical approaches were applied to gain a comprehensive insight in terms of both the identification of risk factors and the analysis of dependency structure among clinical and demographic characteristics. The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus enters host cells by binding to the angiotensin-converting enzyme 2 (ACE2), but whether or not renin-angiotensin-aldosterone system inhibitors (RAASi) would be beneficial to COVID-19 cases remains controversial. The survival tree approach was applied to define a multilayer risk stratification and better profile patient survival with respect to drug regimens, showing a significant protective effect of RAASi with a reduced risk of in-hospital death. Bayesian networks were estimated, to uncover complex interrelationships and confounding effects. The results confirmed the role of RAASi in reducing the risk of death in COVID-19 patients. De novo treatment with RAASi in patients hospitalized with COVID-19 should be prospectively investigated in a randomized controlled trial to ascertain the extent of risk reduction for in-hospital death in COVID-19.