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- Midgren, Bengt, et al.
(author)
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Cheyne-Stokes respiration is not related to quality of life or sleepiness in heart failure
- 2010
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In: Clinical Respiratory Journal. - : Wiley. - 1752-6981 .- 1752-699X. ; 4:1, s. 30-36
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Journal article (peer-reviewed)abstract
- Background and aims: The effects of central sleep apnea in Cheyne-Stokes respiration on sleep-related symptoms and quality of life are not very well established. We aimed to investigate whether Cheyne-Stokes respiration is related to health-related quality of life. We also studied the impact on daytime sleepiness and nocturnal dyspnea. Methods: Included were 203 consecutive patients, stabilized following in-hospital treatment for decompensated congestive heart failure. They underwent overnight cardiorespiratory sleep apnea recordings in hospital and answered a set of questions on symptoms and health-related quality of life questionnaires in the form of the Nottingham Health Profile and the Minnesota Living with Heart Failure Questionnaire. After excluding seven patients with predominantly obstructive apneas and 14 with insufficient recordings, 182 patients were included in the final analysis. Results: One third of the patients had an apnea-hypopnea index (AHI) of > 30. Falling asleep in front of the television was the only symptom related to (AHI). Nocturnal dyspnea, daytime sleepiness, generic quality of life or disease-specific quality of life were not related to AHI. Conclusions: Cheyne-Stokes respiration was not associated with health-related quality of life, daytime sleepiness or nocturnal dyspnea among patients stabilized following treatment for congestive heart failure. Please cite this paper as: Midgren B, Mared L, Franklin KA, Berg S, Erhardt L and Cline C. Cheyne-Stokes respiration is not related to quality of life or sleepiness in heart failure. The Clinical Respiratory Journal 2009; DOI:10.1111/j.1752-699X.2009.00139.x.
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- Tasevska, Gordana, et al.
(author)
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Gender differences in variables related to B-natriuretic peptide, left ventricular ejection fraction and mass, and peak oxygen consumption, in patients with heart failure.
- 2011
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In: International Journal of Cardiology. - : Elsevier BV. - 0167-5273. ; Apr 7, s. 364-371
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Journal article (peer-reviewed)abstract
- AIM AND METHODS: We assessed gender differences in variables related to B-natriuretic peptide (BNP), left ventricular ejection fraction (LVEF), peak oxygen consumption (peak-VO2), and LV mass (LVM), among patients recently hospitalized for suspected heart failure (HF). RESULTS: Of 930 consecutive patients, 409 accepted follow-up after discharge, 221 of these had definite HF (90 women, mean age 74.5 [9.8]years). In 141 HF patients (61 women) with BNP data, women had lower BNP than men (43.9 [38.1] versus 76.3 [88.9]pmol/L, P=0.0193). LVEF (all HF patients) was higher in women (49.8 [13.4] versus 42.4 [13.9]%, P=0.0004). Peak-VO2 (147 HF patients, 48 women) was lower in women (13.9 [4.3] versus 16.3 [4.2]mL/kg/min, P=0.0093). LVM index (200 HF patients, 78 women) was lower in women (130.4 [46.5] versus 171.7 [57.6]g/m(2), P<0.0001). Among HF patients, variables independently related to BNP were body mass index (BMI) and peak-VO2 exclusively among men, mitral regurgitation, respiratory disease and angiotensin receptor blocker treatment only among women. Variables independently related to LVEF were resting heart rate, acetylic salicylic acid use and BNP exclusively among men. No variable was exclusive for women. Variables independently related to peak-VO2 were right ventricular size, BNP, resting and peak heart rate solely among men, BMI and stable angina pectoris exclusively among women. Variables independently related to LVM were left atrial diameter only among men, BMI exclusively among women. CONCLUSION: Among elderly HF patients, there were some important gender differences in BNP, LVEF, peak-VO2 and LVM, and in variables independently related to these factors.
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