Comparative analysis of heart rate variability indices from ballistocardiogram and electrocardiogram: a study on measurement agreement.

Ballistocardiogram (BCG) captures minute vibrations generated by heart movements. These vibrations are converted into heart rate variability (HRV) indices, allowing their unobtrusive monitoring over extended periods, while reducing the burden on patients or subjects. In this study, to evaluate the agreement between the HRV indices, we compared the HRV indices estimated from the BCG device with those obtained from the gold standard electrocardiogram (ECG).

Estimated protein intake and prognosis in hospitalised heart failure: A focus on patients with and without chronic kidney disease.

Background And Aims: In patients with heart failure (HF), differences in the association between estimated protein intake (PI) and prognosis in those with and without chronic kidney disease (CKD) remain to be clarified. This study aimed to investigate whether the prognostic effects of the estimated PI differ between patients with HF with and without CKD.

Methods: We included patients who required hospitalisation owing to worsening HF between 2015 and 2019 and assessed the estimated PI based on the adjusted Maroni formula using the body mass index and urinary urea nitrogen level.

Prognostic Value of Sarcopenia Definitions and Outcomes Consortium Criteria in Older Patients with Heart Failure.

Objectives: The Asian Working Group for Sarcopenia in 2019 (AWGS 2019) emphasized muscle mass measurements. In contrast, the Sarcopenia Definitions and Outcomes Consortium (SDOC) prioritizes functional strength and mobility. Therefore, this study aimed to compare the prognostic utility of the SDOC and AWGS 2019 criteria for all-cause mortality in older patients with heart failure.

Effect of Cereal Consumption (Frugra) on Autonomic Nervous System Function in Healthcare Workers Who Skip Breakfast.

In this study, we aimed to clarify the effects of breakfast intervention on autonomic nerve function in healthcare workers who skip breakfast. This cross-sectional, interventional study was conducted between January 2020 and December 2021. All participants were full-time healthcare workers who completed a self-administered questionnaire on fatigue and subjective symptoms and underwent noninvasive autonomic nerve function tests.

Clinical advantages of reduced expiratory positive airway pressure setting in adaptive servo-ventilation therapy.

The clinical ramifications of adaptive servo-ventilation (ASV) therapy have stirred debate within the medical community. Given the potential detrimental effect of elevated expiratory positive airway pressure (EPAP) on cardiac output, we hypothesized that relatively lower EPAP may be recommended for successful ASV therapy. In-hospital patients with congestive heart failure refractory to medical therapy were included in the prospective cohort study of ASV therapy on prognosis in repeatedly hospitalized patients with chronic heart failure: longitudinal observational study of effects on readmission and mortality (SAVIOR-L) study.

Prognostic value of Borg scale following 6-min walk test in hospitalized older patients with heart failure.

Aims: The 6-min walk test (6MWT) is a widely accepted tool for evaluating exercise tolerance and physical capacity, and the 6-min walk distance (6MWD) is an established prognostic factor in patients with heart failure (HF). However, the prognostic implications of post-6MWT dyspnoea remain unknown. We aimed to investigate the prognostic value of Borg scores after the 6MWT in patients with HF.

Correlates of sleep-disordered breathing and Cheyne-Stokes respiration in patients with atrial fibrillation who have undergone pulmonary vein isolation.

Sleep disordered breathing (SDB) is a common comorbidity in patients with atrial fibrillation (AF). Patients undergoing pulmonary vein isolation (PVI) for AF have a high prevalence of SDB. In previous studies, some patients with AF had Cheyne-Stokes respiration (CSR).

Rehospitalisation risk by hypnotics class in older patients with heart failure: a cohort study utilizing administrative claims data in Japan.

Background: Studies comparing the safety of orexin receptor antagonists and other hypnotic types for older patients with heart failure (HF) remain lacking. This study aimed to compare orexin receptor antagonists (suvorexant) with benzodiazepines or Z-drugs for sleep treatment and investigate the risk of acute HF-related rehospitalisation in older patients with HF.

Methods: This study used a cohort design to analyse data from an administrative claims database from April 2008 to December 2020.

Prognostic value of weight loss in hospitalized patients with heart failure.

Background: Weight loss is a poor prognostic factor in patients with chronic heart failure (HF). However, whether the same is true for hospitalized patients with HF is unknown, even though hospitalization is the first opportunity for many patients to be diagnosed with HF. This study aimed to investigate the prognostic value of weight loss in patients hospitalized for HF.

Lymphocyte-to-C-reactive protein ratio and score in patients with heart failure: Nutritional status, physical function, and prognosis.

Aims: In heart failure (HF), inflammation is linked to malnutrition and impaired physical function. In this study, we aimed to assess how novel nutritional-inflammatory markers and lymphocyte-to-C-reactive protein ratio (LCR) and score (LCS) are associated with the nutritional status, physical function, and prognosis of patients with HF.

Methods And Results: This study was a secondary analysis of the FRAGILE-HF study, a prospective observational study conducted across 15 hospitals in Japan.

A case of middle-aged central sleep apnea due to Joubert syndrome with different treatment effects of oxygen and acetazolamide.

Unlabelled: We report a case of severe central sleep apnea incidentally diagnosed during polysomnography for suspected obstructive sleep apnea. Characteristic clinical features included episodic hyperventilation followed by apnea from hypocapnia, which did not follow a Cheyne-Stokes pattern. Combined with the identification of cerebellar and brainstem malformations known as the "molar tooth sign" on a brain magnetic resonance imaging, developmental delay, and motor coordination problems, Joubert syndrome (a congenital disease) was first diagnosed at the age of 50 years.

The Correlation between the Severity of Obstructive Sleep Apnea and Insulin Resistance in a Japanese Population.

Repetitive episodes of apnea and hypopnea during sleep in patients with obstructive sleep apnea (OSA) are known to increase the risk of atherosclerosis. Underlying obesity and related disorders, such as insulin resistance, are indirectly related to the development of atherosclerosis. In addition, OSA is independently associated with insulin resistance; however, data regarding this relationship are scarce in Japanese populations.

Prognostic Value of Objective Social Isolation and Loneliness in Older Patients With Heart Failure: Subanalysis of FRAGILE-HF and Kitasato Cohort.

Background: Social factors encompass a broad spectrum of nonmedical factors, including objective (social isolation [SI]) and perceived (loneliness) conditions. Although social factors have attracted considerable research attention, information regarding their impact on patients with heart failure is scarce. We aimed to investigate the prognostic impact of objective SI and loneliness in older patients with heart failure.

Changes in the Objective Measures of Sleep in Association with Menses Among Female Athletes with Poor Subjective Sleep Quality: Female Athletes with Poor Subjective Sleep Quality Have More Sleep Arousals During Menses.

Purpose: Female athletes with menstrual abnormalities have poor sleep quality. However, whether female athletes with poor sleep quality based on subjective assessment have distinctive changes in objective measures of sleep in association with menses remains unclear. This study aimed to compare changes in objective sleep measurements during and following menses between collegiate female athletes with and without poor subjective sleep quality.