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| ID | Type | Description | Link |
|---|---|---|---|
| M-2013-304-13 | Other Identifier | The Regional Committee of Health Research Ethics |
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The purpose of this study is to examine the effect on blood pressure of 3 months of treatment with continuous positive airway pressure (CPAP) in patients with obstructive sleep apnea (OSA).
Hypothesis:
3. The renal treatment of salt and water is abnormal in OSA, improved during treatment with CPAP.
4. Quality of life improves during treatment with CPAP
Approximately 20 patients with hypertension and moderate to severe OSA are treated with CPAP 3 months to examine the treatment effect on blood pressure throughout the day, but especially nocturnal, renal treatment of salt and water, and quality of life.
Before and after 3 months of CPAP treatment is made central and peripheral 24-h ambulatory blood pressure monitoring, 24-h urine collection and blood samples.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Treatment | Experimental | Patients with hypertension and moderate to severe OSA is treated with CPAP for 3 months. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| CPAP | Device | 3 months of CPAP treatment |
|
|
| Measure | Description | Time Frame |
|---|---|---|
| difference in systolic peripheral BP at night | The difference in systolic BP at night by peripheral BP days before and after 3 months of treatment of OSA with CPAP in patients with hypertension. | 3 months |
| Measure | Description | Time Frame |
|---|---|---|
| Difference i central systolic BP | The difference in systolic BP at night in central BP days before and after 3 months of treatment of OSA with CPAP in patients with hypertension. | 3 months |
| Difference i BP throughout the day |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Department of Medical Research and Medicine, Holstebro Regional Hospital | Recruiting | Holstebro | Holstebro | 7500 | Denmark |
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| ID | Term |
|---|---|
| D006973 | Hypertension |
| D020181 | Sleep Apnea, Obstructive |
| ID | Term |
|---|---|
| D014652 | Vascular Diseases |
| D002318 | Cardiovascular Diseases |
| D012891 | Sleep Apnea Syndromes |
| D001049 | Apnea |
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The difference in systolic BP and diastolic BP throughout the day, in the daytime and in nighttime between measurements with peripheral and central 24-h blood pressure monitoring before and after 3 months of treatment with CPAP.
| 3 months |
| Correlation between degree of OSA and kidney function on effect of treatment | The correlation between the treatment effect on blood pressure levels on the one hand and the severity of OSA prior to initiation of treatment and renal function as measured by estimated glomerular filtration rate (eGFR) on the other. | 3 months |
| urine auquaporine2 (u-AQP2) and urine epithelial Natrium channel (u-ENaC) | Changes in U-AQP2 and u-ENaC in 24-h urine samples before and after 3 month of treatment. | 3 months |
| Plasma renin concentration (PRC), plasma angiotensin II (p-AngII), plasma aldosterone (p-Aldo), plasma vasopressin (P-AVP) and plasma endothelin (p-endothelin). | Changes in PRC, p-AngII, p-Aldo. P-AVP and p-endothelin in blood samples before and after 3 month of treatment. | 3 months |
| Quality of life | Changes in the quality of life before and after treatment of OSA with CPAP. | 3 months |
| D012120 |
| Respiration Disorders |
| D012140 | Respiratory Tract Diseases |
| D020919 | Sleep Disorders, Intrinsic |
| D020920 | Dyssomnias |
| D012893 | Sleep Wake Disorders |
| D009422 | Nervous System Diseases |