The American journal of medicine
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Review
Transient left ventricular dysfunction under severe stress: brain-heart relationship revisited.
Transient left ventricular dysfunction in patients under emotional or physical stress, also known as tako-tsubo-like left ventricular dysfunction, has been recently been recognized as a distinct clinical entity. The aims of this review are to define this phenomenon and to explore its similarities to the left ventricular dysfunction seen in patients with acute brain injury. ⋯ Transient left ventricular dysfunction occurs in the absence of obstructive epicardial coronary artery disease. In its broadest sense, this phenomenon may encompass a range of disorders including left ventricular dysfunction after central nervous system injury.
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The field of hospital medicine continues to grow rapidly, and with this growth has come the realization that residency alone may not provide the full complement of skills required of a successful hospitalist. As a result, several institutions have started hospitalist fellowships, new programs with the specific goal of training clinicians to improve hospital care. ⋯ This article provides an overview of the programs, explores the choices for trainees in selecting a fellowship, and the challenges for institutions in developing a new fellowship. Although hospitalist fellowships are still in evolution, they will play an important role in the development of hospital medicine.
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Poor blood pressure control remains a common problem that contributes to significant cardiovascular morbidity and mortality, particularly among African Americans. We explored antihypertensive medication adherence and other factors that may explain racial differences in blood pressure control. ⋯ In this sample of hypertensive patients who have good access to health care and medication benefits, African Americans continued to have lower levels of blood pressure control despite considering more than 20 factors related to blood pressure control. Interventions designed to improve medication adherence need to take race into account. Patients' self-reports of failure to take medications provide an opportunity for clinicians to explore reasons for medication nonadherence, thereby improving adherence and potentially blood pressure control.
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B-type natriuretic peptide is known to correlate with hemodynamic state, presence and severity of congestive heart failure, and prognosis. Although low-range B-type natriuretic peptide less than 100 pg/mL has a high negative predictive value (90%), and high-range B-type natriuretic peptide greater than 500 pg/mL has a high positive predictive value (87%), there remains some ambiguity in the interpretation of results in the medium range (100-500 pg/mL). We hypothesized that taking into account the history of congestive heart failure along with other clinical variables would be helpful in this range of B-type natriuretic peptide levels. ⋯ Even in the medium range (100-500 pg/mL), when using the history of congestive heart failure and index criteria, B-type natriuretic peptide can be a powerful diagnostic tool in the hands of clinicians in the emergency department.
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The study objective was to determine the eventual consequences (falls, unsteadiness, and cognitive impairment) of mild chronic hyponatremia, which is generally considered as asymptomatic. ⋯ Mild chronic hyponatremia induces a high incidence of falls possibly as the result of marked gait and attention impairments. Treating these patients might prevent a considerable number of hospitalizations.