Nocturnal Blood Pressure - Central and Peripheral 24-h Blood Pressure in Chronic Kidney Disease. (NOSA)
Nocturnal Blood Pressure in Chronic Kidney Disease, Obstructive Sleep Apnea and Healthy Subjects - Central and Peripheral 24-h Blood Pressure.
A new study have shown that high nighttime blood pressure (BP) and/or non-dipping (lack of fall in blood pressure during nighttime) is a strong predictor for the risk of cardiovascular disease and mortality in patients with hypertension. Three factors seem to affect the night time blood pressure: chronic kidney disease, obstructive sleep apnea (OSA) or the way ambulatory blood pressure is monitored.
The aim of this study is to analyse the importance of these three factors on nighttime bloodpressure.
Hypothesis:
Central 24 hour blood pressure monitoring provides another measure of daily fluctuations in blood pressure than peripheral 24 hour blood pressure monitoring, because measurement is painless and does not interfere with activities during the daytime or night-time sleep
In chronic kidney disease and OSA the decrease in nocturnal BP is lower than in healthy subjects.
In chronic kidney disease the decrease in the nocturnal BP is inversely correlated to the severity of OSA, the severity of kidney disease, and blood pressure during daytime.
Panoramica dello studio
Stato
Stato
Condizioni
Condizioni
Descrizione dettagliata
Tipo di studio
Tipo di studio
Iscrizione (Anticipato)
Iscrizione
Contatti e Sedi
Luoghi di studio
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Holstebro, Danimarca, 7500
- Department of Medical Research and Medicine, Holstebro Regional Hospital
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Criteri di partecipazione
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Metodo di campionamento
Popolazione di studio
Group 1: Patients with chronic kidney disease, CKD stage III-IV. The patients is followed for their kidney disease at Holstebro Regional Hospital, Denmark, Medical clinic, and the are chosen to participate in the study because of this relation.
Group 2: Healthy subjects. They arerecruited through postings on public and private companies as well as advertising in local medier.
Descrizione
Patients, group 1:
Inclusion Criteria:
- eGFR 15-59 mL/min/1.73 m2 (estimated GFR)
- 18-80 years
- males and females
Exclusion Criteria:
- lack of desire to participate
- treatment for OSA
- malignant disease
- Abuse of drugs or alcohol
- pregnant and lactating
- incompensated heart failure
- atrial fibrillation
- liver disease (ALAT> 200)
- Severe chronic obstructive lung disease (forced expiratory volume in 1 second <50% predicted)
Healthy Subjects:
inclusion criteria
- Healthy volunteers men and women
- age 40 - 80 years
- BMI within the normal range, ie. between 18.5 to 25.0 kg/m2
exclusion Criteria
- Arterial hypertension, ie. ambulatory blood pressure> 130 mmHg systolic and / or 80 mmHg diastolic.
- a history or clinical signs of cardial, pulmonary, hepato, renal, endocrine, cerebral or neoplastic disorders
- Alcohol abuse, ie. > 14 drinks / week for women and> 21/uge for men
- Substance abuse
- Daily medicine intake/ treatment apart from oral contraceptives
- Smoking
- Pregnancy or breastfeeding
- Lack of desire to participate
- Clinically significant, discrepant results of blood or urine sample at inclusion study (ie B-hemoglobin and B-White blood cell count, p-Sodium, p-Potassium, p-creatinine, p-ALAT, p-bilirubin , p-alkaline phosphatase, p-cholesterol, p-albumin or b-glucose and urine for hematuria, albuminuria or glucosuria)
- Clinically significant differences in the electrocardiogram
- Blood Donation for the past month preceding the day on the first attempt sequence.
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
Numero di gruppi/coorti
Coorti e interventi
Gruppo / CoorteGruppo / Coorte |
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Chronic kidney disease, CKD III+IV
150 patients with Chronic kidney disease, CKD stage III+IV.
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Healthy subjects
75 healthy subjects.
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
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decrease in peripheral systolic blood pressure at night
Lasso di tempo: < 24 hours
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The difference in the decrease in systolic blood pressure at night by peripheral 24-h BP between patients with chronic kidney disease and healthy subjects.
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< 24 hours
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Misure di risultato secondarie
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
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decrease in central systolic blood pressure at night
Lasso di tempo: < 24 hours
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The difference in the decrease in systolic BP at night by central 24-h BP between patients with chronic kidney disease and healthy subjects.
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< 24 hours
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difference in peripheral and central systolic and diastolic blood pressure throughout the day, during the daytime and during nighttime
Lasso di tempo: < 24 hours
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The difference in systolic blood pressure and diastolic blood pressure throughout the day, during the daytime and during nighttime between measurements with peripheral 24-hour monitoring and central 24 hour monitoring in both patients with chronic kidney disease and healthy subjects.
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< 24 hours
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The correlation between the decrease in nighttime blood pressure on the one hand and severity of OSA, severity of kidney disease and blood pressure during the daytime on the other.
Lasso di tempo: < 24 hours
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< 24 hours
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U-AQP2 (urine aquaporin 2) og u-ENaCɣ (urine epithelial sodium channel)
Lasso di tempo: 24 hours
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24 hour urine sample.
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24 hours
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PRC (plasma renin concentration), p-AngII (angiotensin II), p-Aldosterone. P-Avp (vasopressin), p-Endothelin.
Lasso di tempo: < 1 hour
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< 1 hour
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Collaboratori e investigatori
Sponsor
Sponsor
Pubblicazioni e link utili
Studiare le date dei record
Studia le date principali
Inizio studio
Inizio studio
Completamento primario (Anticipato)
Completamento primario
Completamento dello studio (Anticipato)
Completamento dello studio
Date di iscrizione allo studio
Primo inviato
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Primo Inserito
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
Ultimo aggiornamento pubblicato
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
- Malattie del sistema nervoso
- Malattie delle vie respiratorie
- Disturbi respiratori
- Disturbi del sonno, intrinseci
- Dissonnie
- Disturbi del sonno e della veglia
- Malattie urologiche
- Insufficienza renale
- Segni e sintomi, respiratori
- Sindromi da apnee notturne
- Apnea notturna, ostruttiva
- Malattie renali
- Insufficienza renale cronica
- Apnea
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- BGH-1-2013
- M-2013-224-13 (Altro identificatore: The Regional Committee of Health Research Ethics)
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