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Note: This record shows only 22 elements of the WHO Trial Registration Data Set. To view changes that have been made to the source record, or for additional information about this trial, click on the URL below to go to the source record in the primary register.
Register: ClinicalTrials.gov
Last refreshed on: 12 December 2020
Main ID:  NCT03165032
Date of registration: 22/05/2017
Prospective Registration: Yes
Primary sponsor: University of Zurich
Public title: Right Ventricular Function During Exercise in Highlanders/Lowlanders
Scientific title: Right Ventricular Function During Exercise in Highlanders With Pulmonary Hypertension Compared to Highlanders Without Pulmonary Hypertension and Lowlanders
Date of first enrolment: May 24, 2017
Target sample size: 173
Recruitment status: Completed
URL:  https://clinicaltrials.gov/show/NCT03165032
Study type:  Observational [Patient Registry]
Study design:   
Phase: 
Countries of recruitment
Kyrgyzstan
Contacts
Key inclusion & exclusion criteria

Inclusion Criteria:

- high altitude pulmonary hypertension confirmed by clinical presentation and mean
pulmonary artery pressure >30 mmHg measured by echocardiography at altitude of
residence.

- healthy subjects (high altitude controls)

- Both genders

- Age >16 y

- Kyrgyz ethnicity

- born, raised and currently living at >2500 m

- healthy subjects currently living at <1000 m (low altitude controls)

Exclusion Criteria:

- Pulmonary hypertension from other causes, in particular from left ventricular failure
as judged clinically and by echocardiography

- Excessive erythrocytosis

- Other coexistent disorders that may interfere with the cardio-respiratory system and
sleep

- Regular use of medication that affects control of breathing

- Heavy smoking



Age minimum: 16 Years
Age maximum: N/A
Gender: All
Health Condition(s) or Problem(s) studied
High Altitude Pulmonary Hypertension
Intervention(s)
Primary Outcome(s)
pulmonary artery pressure (PAP) during exercise [Time Frame: Day 2]
Secondary Outcome(s)
Oxygen saturation [Time Frame: Day 2]
PAP/CO slope during exercise [Time Frame: Day 2]
cardiac output (CO) during exercise [Time Frame: Day 2]
Secondary ID(s)
01-8/433B
Source(s) of Monetary Support
Please refer to primary and secondary sponsors
Secondary Sponsor(s)
National Center of Cardiology and Internal Medicine named after academician M.Mirrakhimov
Ethics review
Results
Results available:
Date Posted:
Date Completed:
URL:
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