- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT01833429
Autonomic Dysfunction in Resistant Hypertension (RH)
Circadian Autonomic Disturbances in Resistant Hypertension With and Without White-coat Phenomenon
Studieoversigt
Status
Detaljeret beskrivelse
All patients were submitted to office blood pressure measurement, Ambulatory blood pressure monitoring and 24-hour Holter monitoring.
Baseline blood samples for the measurement of glycemia (mg/dL), total cholesterol (mg/dL), LDL cholesterol (mg/dL), triglycerides (mg/dL), creatinine (mg/dL), serum uric acid, serum sodium, serum potassium, plasma aldosterone concentration (PAC) and plasma renin activity (PRA) were collected at 08:00 after overnight fasting.
Undersøgelsestype
Tilmelding (Faktiske)
Kontakter og lokationer
Studiesteder
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Sao Paulo
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Campinas, Sao Paulo, Brasilien, 13083-888
- Cardiovascular Pharmacology Laboratory
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- resistant hypertensive patients
Exclusion Criteria:
- White-coat hypertension
- obstructive sleep apnea
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
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Resistant Hypertension
The current definition of resistant hypertension (RH) includes both patients whose blood pressure (BP) is uncontrolled on three or more medications and those whose BP is controlled when using four or more antihypertensive medications
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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evaluation of the autonomic function in resistant hypertensive patients
Tidsramme: 10 months
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The autonomic nervous system can be assessed by the heart rate variability. Variations in heart rate variability are normally observed in association with diurnal rhythms and blood pressure changes. The heart rate variability parameters are different in many studies, although the consensus is that lower values of the indices of vagal as well as high indices of sympathetic functions are associated prospectively with death and disability. In humans, the disturbances of the circadian rhythms of heart rate variability and blood pressure have been intensively studied, mainly due to the increased cardiovascular death reported during the morning hours |
10 months
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Samarbejdspartnere og efterforskere
Sponsor
Publikationer og nyttige links
Generelle publikationer
- Calhoun DA, Jones D, Textor S, Goff DC, Murphy TP, Toto RD, White A, Cushman WC, White W, Sica D, Ferdinand K, Giles TD, Falkner B, Carey RM; American Heart Association Professional Education Committee. Resistant hypertension: diagnosis, evaluation, and treatment: a scientific statement from the American Heart Association Professional Education Committee of the Council for High Blood Pressure Research. Circulation. 2008 Jun 24;117(25):e510-26. doi: 10.1161/CIRCULATIONAHA.108.189141.
- Muxfeldt ES, Fiszman R, de Souza F, Viegas B, Oliveira FC, Salles GF. Appropriate time interval to repeat ambulatory blood pressure monitoring in patients with white-coat resistant hypertension. Hypertension. 2012 Feb;59(2):384-9. doi: 10.1161/HYPERTENSIONAHA.111.185405. Epub 2012 Jan 3.
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 907/2011
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