🏛️ Verified NIH Record • Updated 2026-03-31

Association of Body Fluid Distribution With Obstructive Sleep Apnea in Pregnant Women With Body Mass Index ≥ 40 kg/m2 (NCT04187612)

Association of Body Fluid Distribution With Obstructive Sleep Apnea in Pregnant Women With Body Mass Index ≥ 40 kg/m2 - A Prospective Observational Study

🔵 Active, Not Recruiting Interventional Protocol 📊 Observational Clinical Research Sponsor: Samuel Lunenfeld Research Institute, Mount Sinai Hospital

🩺 Plain-English Summary (8th-Grade Level)

Obstructive Sleep apnea (OSA) is a common and underdiagnosed condition in obese pregnant women with serious and life-threatening complications to the mother and baby. The investiators propose that a non-invasive method may be used to detect patients at risk of OSA, giving these women access to the necessary treatment to treat this condition. The method is a estimation of body water, which has been shown to be linked to OSA in the non-pregnant population. Body water is estimated by applying surface electrodes to a participant who is lying down by measuring bioimpedance through body tissues by applying a tiny current between the electrodes. The electrical stimulation is not felt by the participant and has no negative effects on mother or baby.

Who can join: Review the eligibility criteria below.

Location: Mount Sinai Hospital — Toronto, Ontario

Age range: 16 Years to 50 Years

🧪 Interventions in This Study

📋 "Do I Qualify?" — 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria ↗

📍 All Participating Trial Locations (1 Sites)

  • Mount Sinai Hospital — Toronto, Ontario

💰 Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

More studies in Apnea, Obstructive Sleep

💡 How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Review the official NIH record below to find the coordinating site.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
🏛️ View Official NIH Record ↗