JAMA : the journal of the American Medical Association
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To understand the Navajo perspective regarding the discussion of negative information and to consider the limitations of dominant Western bioethical perspectives. ⋯ Discussing negative information conflicts with the Navajo concept hózhó and was viewed as potentially harmful by these Navajo informants. Policies complying with the Patient Self-determination Act, which are intended to expose all hospitalized Navajo patients to advance care planning, are ethically troublesome and warrant reevaluation.
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To evaluate and quantitate cardiac involvement in myotonic dystrophy and assess whether the size of the trinucleotide (cytosine-thymine-guanine [CTG]) repeat expansion is a significant predictor of cardiac abnormalities. ⋯ Cardiac involvement in myotonic dystrophy affects predominantly the conduction system and myocardial function. Alterations in myocardial relaxation and diastolic properties, in contrast to skeletal muscle myotonia, are minor. In this kindred, the number of CTG repeats was a significant predictor of cardiac dysfunction in myotonic dystrophy.