Sleep-disordered breathing, including obstructive sleep apnea (OSA) and central sleep apnea (CSA), is common in severe heart failure (HF) patients. There is limited data on the effect of left ventricular assist devices (LVAD) on sleep apnea. We performed a retrospective review of 350 durable LVAD patients and found 5 with a history of pre- and post-LVAD sleep studies. All five patients had OSA, and three had concomitant CSA. We observed reduced apnea-hypopnea index following LVAD placement. This was due to a near abolishment of CSA in three mixed sleep apnea patients-as seen by a central apnea index improvement from an average of 25.9 ± 13.1 to 1.4 ± 2.5 events per hour (p = 0.063). LVAD placement was associated with an increase in thermodilution cardiac output from 2.7 ± 0.6 to 4.1 ± 1.1 L/min (p = 0.014). These findings support chemoreception physiology seen in patients with poor circulation and the effect of restoring this circulation with LVAD support.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1111/aor.14681 | DOI Listing |
Otolaryngol Head Neck Surg
January 2025
Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina, USA.
Objective: To provide an updated evaluation of clinical effectiveness and sequelae of maxillomandibular advancement surgery in obstructive sleep apnea.
Data Sources: PubMed, Scopus, CINAHL.
Review Methods: Included studies described patients with obstructive sleep apnea that completed maxillomandibular advancement with any reported sequelae.
Sleep Med X
December 2024
UOSD Neurologia, SS Annunziata Hospital, 67039, Sulmona, L'Aquila, Italy.
[This corrects the article DOI: 10.1016/j.sleepx.
View Article and Find Full Text PDFAm J Physiol Endocrinol Metab
January 2025
Division of Pulmonary, Critical Care, and Sleep Medicine, University of Miami, Miller School of Medicine, Miami Florida.
Intermittent hypoxemia (IH), a pathophysiologic consequence of obstructive sleep apnea (OSA), adversely affects insulin sensitivity, insulin secretion, and glucose tolerance. Nifedipine, an L-type calcium channel blocker frequently used for treatment of hypertension, can also impair insulin sensitivity and secretion. However, the cumulative and interactive repercussions of IH and nifedipine on glucose homeostasis have not been previously investigated.
View Article and Find Full Text PDFNat Rev Urol
January 2025
Discipline of Biological Sciences, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, New South Wales, Australia.
Multiple conditions can cause hypoxia in the testis, including exposure to high altitude, sleep apnoea, testicular torsion and varicocele. Varicocele accounts for up to 44% of instances of primary infertility, but the cumulative contribution of hypoxic conditions to male infertility is undefined. Results of controlled hypobaric hypoxia studies have demonstrated a substantial detrimental effect of short-term and long-term exposures on sperm; however, downstream effects on embryo development and offspring health are less well understood.
View Article and Find Full Text PDFDiabetes Res Clin Pract
January 2025
Department of Endocrinology-Diabetology-Nutrition, Jean Verdier Hospital, APHP, CINFO, Bondy, France. Electronic address:
Although often overlooked sleep apnea has emerged as a significant public health concern. Obstructive sleep apnea (OSA) and diabetes commonly co-exist with a vicious cycle worsening the incidence and severity of both conditions. OSA has many implications including cardiometabolic disorders and impaired cardiovascular (CV) prognosis.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!