Congestive heart failure is a recognised complication of uncontrolled thyrotoxicosis but isolated right heart failure is rarely seen in association with thyrotoxicosis. Two cases of right heart failure associated with thyrotoxicosis are presented. In a 45-year-old man with right heart failure, investigations for all common secondary causes of right heart failure were negative. The only concurrent disease identified was thyrotoxicosis. The right heart failure subsided after treatment of the thyrotoxicosis. In a 36-year-old woman, the right heart failure had two underlying causes, thyrotoxicosis and an atrial septal defect. Treatment of thyrotoxicosis alone resulted in improvement of pulmonary hypertension and right heart failure. Thyrotoxicosis should be considered as a possible cause of pulmonary hypertension or isolated right heart failure.
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Drugs Aging
January 2025
Program for the Care and Study of the Aging Heart, Department of Medicine, Weill Cornell Medicine, 420 East 70th St, New York, NY, LH-36510063, USA.
There are several pharmacologic agents that have been touted as guideline-directed medical therapy for heart failure with preserved ejection fraction (HFpEF). However, it is important to recognize that older adults with HFpEF also contend with an increased risk for adverse effects from medications due to age-related changes in pharmacokinetics and pharmacodynamics of medications, as well as the concurrence of geriatric conditions such as polypharmacy and frailty. With this review, we discuss the underlying evidence for the benefits of various treatments in HFpEF and incorporate key considerations for older adults, a subpopulation that may be at higher risk for adverse drug events.
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January 2025
Pediatric Advanced Heart Failure and Heart Transplant Program, University of Mississippi Medical Center, 2500 N State Street, Jackson, MS, USA.
Purpose Of Review: Traditionally viewed as a passive player in circulation, the right ventricle (RV) has become a pivotal force in hemodynamics. RV failure (RVF) is a recognized complication of primary cardiac and pulmonary vascular disorders and is associated with a poor prognosis. Unlike treatments for left ventricular failure (LVF), strategies such as adrenoceptor signaling inhibition and renin-angiotensin system modulation have shown limited success in RVF.
View Article and Find Full Text PDFCardiovasc Res
January 2025
Cardiovascular Research Centre, University of Alberta, Edmonton, Alberta, Canada.
Recent evidence suggests that ketone bodies have therapeutic potential in many cardiovascular diseases including heart failure (HF). Accordingly, this has led to multiple clinical trials that use ketone esters to treat HF patients, which we term ketone therapy. Ketone esters, specifically ketone monoesters, are synthetic compounds which, when consumed, are de-esterified into two β-hydroxybutyrate (βOHB) molecules and increase the circulating βOHB concentration.
View Article and Find Full Text PDFAm J Physiol Heart Circ Physiol
January 2025
Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Department of Cardiology, Amsterdam, The Netherlands.
The acute response to therapeutic afterload reduction differs between heart failure with preserved (HFpEF) versus reduced ejection fraction (HFrEF), with larger left ventricular (LV) stroke work augmentation in HFrEF compared to HFpEF. This may (partially) explain the neutral effect of HFrEF-medication in HFpEF. It is unclear whether such differences in hemodynamic response persist and/or differentially trigger reverse remodeling in case of long-term afterload reduction.
View Article and Find Full Text PDFJ Anat
January 2025
Hannover Medical School, Institute of Functional and Applied Anatomy, Hannover, Germany.
Obesity, along with hypoxia, is known to be a risk factor for pulmonary hypertension (PH), which can lead to right ventricular hypertrophy and eventually heart failure. Both obesity and PH influence the autonomic nervous system (ANS), potentially aggravating changes in the right ventricle (RV). This study investigates the combined effects of obesity and hypoxia on the autonomic innervation of the RV in a mouse model.
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