Official Title
HighCycle Study: Effect of High Altitude on Sleep Disordered Breathing in Women Related to Their Menstrual Cycle Phase. A Prospective Cohort Study at 3600 m.
Brief Summary

Prospective cohort study investigating the menstrual cycle phase (MCP) dependent sleepdisordered breathing (SDB) in women travelling to 3600 m.

Detailed Description

Not Provided

Recruiting
Sleep-Disordered Breathing

Other: Exposure to 3600 m

Participants will travel to and stay for 2 nights at an altitude of 3600 m.

Eligibility Criteria

Criteria: Inclusion Criteria:

- Healthy, non-smoking women, age 18-44 years, without any diseases and need of
regular medication (including oral contraceptives).

- BMI >18 kg/m2 and <30 kg/m2

- Born, raised and currently living at altitudes <1000 m

- Written informed consent

- Premenopausal, eumenorrheic cycle

Exclusion Criteria:

- Other types of contraceptives (hormonal intrauterine device, vaginal ring,
subcutaneous injections or implants, among others)

- Pregnancy or nursing

- Anaemic (haemoglobin concentration <10g/dl)

- Any altitude trip <4 weks before the study

- Allergy to acetazolamide and other sulfonamides

Eligibility Gender
Female
Eligibility Age
Minimum: 18 Years ~ Maximum: 44 Years
Countries
Kyrgyzstan
Locations

National Center for Cardiology and Internal Medicine
Bishkek 1528675, Gorod Bishkek 1528334, Kyrgyzstan

Investigator: Talant M Sooronbaev, MD
Contact: +996 312 625679
Sooronbaev@yahoo.com

Contacts

Michael Furian, Prof. Dr.
+41794037586
michael.furian@usz.ch

Talant Sooronbaev, Prof. Dr.
+996772574567
sooronbaev@yahoo.ru

University of Zurich
NCT Number
Keywords
Periodic breathing
Hypoxia
prevention
Acetazolamide
women
Altitude
MeSH Terms
Sleep Apnea Syndromes
Hypoxia