Quin E Denfeld1, James O Mudd, Jill M Gelow, Christopher Chien, Shirin O Hiatt, Christopher S Lee. 1. Quin E. Denfeld, BSN, RN PhD Student, School of Nursing, Oregon Health & Science University, Portland. James O. Mudd, MD Assistant Professor, Knight Cardiovascular Institute, Oregon Health & Science University, Portland. Jill M. Gelow, MD, MPH Assistant Professor, Knight Cardiovascular Institute, Oregon Health & Science University, Portland. Christopher Chien, MD Assistant Professor, Knight Cardiovascular Institute, Oregon Health & Science University, Portland. Shirin O. Hiatt, MPH, MS, RN Research Associate, School of Nursing, Oregon Health & Science University, Portland. Christopher S. Lee, PhD, RN, FAHA Assistant Professor, School of Nursing and Knight Cardiovascular Institute, Oregon Health & Science University, Portland.
Abstract
BACKGROUND: There is a common dissociation between objective measures and patient symptomatology in heart failure (HF). OBJECTIVE: The aim of this study was to explore the relationship between cardiac biomechanics and physical and psychological symptoms in adults with moderate to advanced HF. METHODS: We performed a secondary analysis of data from 2 studies of symptoms among adults with HF. Stepwise regression modeling was performed to examine the influence of cardiac biomechanics (left ventricular internal diastolic diameter, right atrial pressure [RAP], and cardiac index) on symptoms. RESULTS: The average age of the sample (n = 273) was 57 ± 16 years, 61% were men, and 61% had class III or IV HF. Left ventricular internal diastolic diameter (β = 4.22 ± 1.63, P = .011), RAP (β = 0.71 ± 0.28, P = .013), and cardiac index (β = 7.11 ± 3.19, P = .028) were significantly associated with physical symptoms. Left ventricular internal diastolic diameter (β = 0.10 ± 0.05, P = .038) and RAP (β = 0.03 ± 0.01, P = .039) were significantly associated with anxiety. There were no significant biomechanical determinants of depression. CONCLUSION: Cardiac biomechanics were related to physical symptoms and anxiety, providing preliminary evidence of the biological underpinnings of symptomatology among adults with HF.
BACKGROUND: There is a common dissociation between objective measures and patient symptomatology in heart failure (HF). OBJECTIVE: The aim of this study was to explore the relationship between cardiac biomechanics and physical and psychological symptoms in adults with moderate to advanced HF. METHODS: We performed a secondary analysis of data from 2 studies of symptoms among adults with HF. Stepwise regression modeling was performed to examine the influence of cardiac biomechanics (left ventricular internal diastolic diameter, right atrial pressure [RAP], and cardiac index) on symptoms. RESULTS: The average age of the sample (n = 273) was 57 ± 16 years, 61% were men, and 61% had class III or IV HF. Left ventricular internal diastolic diameter (β = 4.22 ± 1.63, P = .011), RAP (β = 0.71 ± 0.28, P = .013), and cardiac index (β = 7.11 ± 3.19, P = .028) were significantly associated with physical symptoms. Left ventricular internal diastolic diameter (β = 0.10 ± 0.05, P = .038) and RAP (β = 0.03 ± 0.01, P = .039) were significantly associated with anxiety. There were no significant biomechanical determinants of depression. CONCLUSION: Cardiac biomechanics were related to physical symptoms and anxiety, providing preliminary evidence of the biological underpinnings of symptomatology among adults with HF.
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