Current heart failure reports
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Curr Heart Fail Rep · Apr 2015
ReviewPathophysiology of sepsis-related cardiac dysfunction: driven by inflammation, energy mismanagement, or both?
Sepsis is a systemic inflammatory response that follows bacterial infection. Cardiac dysfunction is an important consequence of sepsis that affects mortality and has been attributed to either elevated inflammation or suppression of both fatty acid and glucose oxidation and eventual ATP depletion. Moreover, cardiac adrenergic signaling is compromised in septic patients and this aggravates further heart function. ⋯ This review article summarizes findings on inflammatory and other mechanisms that are triggered in sepsis and affect cardiac function and mortality. Particularly, it focuses on the effects of the disease in metabolic pathways, as well as in adrenergic signaling and the potential interplay of the latter with inflammation. It is suggested that therapeutic approaches should include combination of anti-inflammatory treatments, stimulation of energy production, and restoration of adrenergic signaling in the heart.
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Curr Heart Fail Rep · Feb 2015
ReviewImpact of intravenous nitroglycerin in the management of acute decompensated heart failure.
Intravenous nitroglycerin is a well-known, but underused, treatment for acute decompensated heart failure. Nitroglycerin has a rapid onset of action and short half-life and there is a clear dose-response curve on both global hemodynamics and peripheral circulation. IV nitroglycerin reduces LV and RV filling pressures and afterload. ⋯ Drawbacks of therapy include not only side effects such as headache, resistance, and development of tolerability to nitrates but also free radical production. However, nitrates in combination with diuretics remain the cornerstone of acute decompensated heart failure treatment. We propose a more aggressive use of nitrates and a more limited use of inotropes (due to ischemic demand and pro-arrhythmogenic characteristics) in normo- or hypertensive patients with acute heart failure.
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Curr Heart Fail Rep · Dec 2014
Understanding the relationship between readmission and quality of hospital care in heart failure.
Hospital readmission rates for heart failure (HF) are increasingly seen as a quality metric and are being used to define reimbursement rates and penalize underperforming hospitals. As disease patterns shift from single acute episodes of illness to more chronic and degenerative diseases, healthcare systems across the country are grappling with the challenge of providing quality care while simultaneously controlling both readmission rates and spending. ⋯ The paper examines several strategies to decrease readmission rates, including discharge planning and readmission reduction programs, as well as the relationship between readmission rates and mortality rates. The principal drivers of readmissions are discussed and the impact of new readmission-based financial policy is explored as well.
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Curr Heart Fail Rep · Dec 2014
ReviewThe acute cardiorenal syndrome type I: considerations on physiology, epidemiology, and therapy.
Acute cardiorenal syndrome, also known as cardiorenal syndrome type 1, is defined as an abrupt worsening of cardiac function that occurs in at least 30 % of patients with acute decompensated heart failure and can lead to the development of acute kidney injury. The changes in renal function that occur in this setting have variable prognostic implications, as both poorer and better outcomes have been reported when renal function worsens during treatment of heart failure decompensation. ⋯ Given these gaps in the understanding of the significance of renal function changes in the setting of decompensated heart failure, it is not surprising that studies on the effects of available therapies, including diuretics, vasoactive drugs, and mechanical fluid removal have yielded inconsistent results. The purpose of this review is to analyze critically the current knowledge on the pathophysiology, epidemiology, prognosis, and treatment of acute cardiorenal syndrome.
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Curr Heart Fail Rep · Dec 2014
ReviewEpidemiology of pulmonary hypertension and right ventricular failure in left heart failure.
Pulmonary hypertension (PH) leading to right ventricular failure (RVF) is a common complication of left heart failure irrespective of the left ventricular ejection fraction. PH due to left heart disease is the most common cause of PH. The prevalence of PH and RVF in left heart failure varies depending on the patient population studied, the method used to diagnose PH, and the hemodynamic criteria used to define PH. ⋯ PH is associated with markers of disease severity, advanced symptoms, and worse long-term outcomes including heart failure hospitalization and mortality in left heart failure. RVF has independent, incremental prognostic value over PH for adverse outcomes in left heart failure. PH and RVF may be potential therapeutic targets in patients with left heart failure.