Study on subclinical left ventricular dysfunction in patients with obstructive sleep apnea

  • Bader Un Nisa
  • Ian Christopher Rocha
  • Muhammad Waqar
  • Muhammad Javad
  • Shahab Ud Din
  • Shah Hussain
  • Muhammad Tasleem
  • Muhammad Asif
  • Muhammad Hassan Raza
  • Sheraz Iqbal Sethi
Keywords: Obstructive sleep apneas, left ventricular, LV systolic dysfunction


Obstructive sleep apneas (OSAS) are related to an intense expansion in left ventricular (LV) afterload which can bring about intense LV systolic (LVS) dysfunction. The investigation populace comprised patients through OSAS analyzed by polysomnography continuously of admitted to our sector over one year time frame for the organization of adenoidal constant positive aviation route pressure (CPAP). Left ventricular ejection fraction (LVEF) was efficiently estimated utilizing radionuclide angiography as a component of a normal assessment in these patients. Patients with LVS failure didn't exhibit more extreme OSAS regarding apnea-hypopnea file (AHI) or nighttime arterial oxyhemoglobin saturation (SaO2), yet one can't prohibit that these patients all things considered had a more significant expansion in nighttime fundamental BP or potentially a higher thoughtful sensory system movement. LVS failure is an uncommon inconvenience of OSAS as was seen in 9% in our investigation. Different kinds of LV associations have been portrayed in patients with OSAS. Taking everything into account, the aftereffects of this investigation recommend that OSAS might be an immediate reason for LVS failure that can determine subsequent inversion of nighttime apneas.


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eISSN: 2707-7179