What can be done to improve diagnosis of aortic dissection?

Aortic dissection (AD) is rare. Missed AD is a common reason for coronial investigations and civil claims for medical negligence. Recommendations include improved education, supervision and information transfer, reminders in chest pain pathways and higher rates of investigation for AD. Higher investigation rates pose risks to patients and the health system which may not be in balance with the likelihood of AD. The appropriate diagnostic yield of investigation to balance risk and benefit has not been defined. The AD detection risk score pathway has been proposed as a useful diagnostic tool but concerns about its derivation, validation and utility remain. In this paper, we try to draw together published literature and local audit data to develop recommendations about what might be done to reduce the number of missed AD cases in EDs and what the impact of higher investigation rates might be.

The Demoralization Scale: a report of its development and preliminary validation.

The development and elaboration of a conceptualization of existential distress in patients with advanced disease is crucial in order to optimize our clinical response within palliative medicine. Demoralization is one expression of existential distress. Its empirical study will be greatly enhanced by a self-report measure that captures its dimensions and intensity. We report here on the development and testing of the Demoralization Scale in 100 patients with cancer. Factor analysis identified five relatively distinct dimensions: loss of meaning, dysphoria, disheartenment, helplessness, and sense of failure. These factors show high internal reliability, and convergent validity with the McGill Quality of Life Scale, Patient Health Questionnaire, Beck Depression Inventory, Beck Hopelessness Scale, Hunter Opinions and Personal Expectations Scale, and the Schedule of Attitudes toward Hastened Death. Its divergent validity is demonstrated through the differentiation of a subgroup of patients with high demoralization who do not meet DSM-IV categorization for a diagnosis of major depression. Confirmatory validation is needed for the scale to be used as a measure of change in interventions designed to treat demoralization.