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The Epidemiology of Aortic Diameter in China

12. januar 2009 opdateret af: Zhejiang University

Epidemiology of Aortic Dimensions in Patients With Clinically Evident Arterial Disease or Cardiovascular Risk Factors

Aortic aneurysms are the major disease processes affecting the aorta and becoming a relatively common cause of death because of rupture or dissection. The most common location for aneurysms is the infrarenal abdominal aorta, followed by the ascending thoracic aorta. Unlike coronary heart disease, the incidence of abdominal aortic aneurysm (AAA) in the United States and Europe has been increasing, and this increase may not be due to higher levels of screening for this condition alone. Aortic diameter is central to the diagnosis of aortic aneurysm. Furthermore, it was demonstrated that non-AAA patients with an enlarged diameter of the infrarenal aortic diameter are also at high risk for all-cause mortality. And aortic root dimension was associated with several coronary artery disease (CHD) risk factors and measures of subclinical disease and was predictive of incident congestive heart failure (CHF), stroke, cardiovascular disease (CVD) mortality, and all-cause mortality, but not of incident MI. Up to now, there are limited studies on the epidemiology of aortic diameter, especially in Chinese population.

Studieoversigt

Status

Ukendt

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

The purpose of this study was to analyze the size of the entire aorta at different anatomic levels in a large group of Chinese population with clinically evident arterial disease or cardiovascular risk factors to further explored the risk factors and potential alternative pathomechanisms for the development of aortic dilatation. Comprehensive transthoracic M-mode, 2-dimensional, and Doppler echocardiographic studies will be performed using commercially available equipment. The aortic dimensions were assessed at end-diastole at the different levels: (1) the annulus, (2) the mid-point of the sinuses of Valsalva, (3) the sinotubular junction, (4) the ascending aorta at the level of its largest diameter, (5) the transverse arch, (6) the descending aorta posterior to the left atrium, and (7) the abdominal aorta just distal to the origin of the renal arteries. The extension of dilation is defined as the number of dilated aortic segments. The relations among aortic dimensions and clinical characteristics will be assessed by multiple regression analysis. The current study was to determine the association of risk factors of CVD and atherosclerosis diseases with aortic dimension in Chinese patients with clinical event atherosclerotic disease or risk factors of atherosclerotic disease.

Undersøgelsestype

Observationel

Tilmelding (Forventet)

2000

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Kina
    • Zhejiang
      • Hangzhou, Zhejiang, Kina, 317000
        • Rekruttering
        • Second Affiliated Hospital of Zhejiang University College of Medicine
        • Kontakt:
        • Ledende efterforsker:
          • Zhao-xia Pu, MD
      • Taizhou, Zhejiang, Kina, 317000
        • Rekruttering
        • Taizhou Hospital, Wenzhou Medical College
        • Kontakt:
        • Ledende efterforsker:
          • Li-jiang Tang

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

40 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Chinese population with clinically evident arterial disease or cardiovascular risk factors

Beskrivelse

Inclusion Criteria:

  • Patients aged 40 to 100 were referred to the hospital with a recent diagnosis of clinically evident arterial disease or a cardiovascular risk factor.

Exclusion Criteria:

  • Those with connective tissue disease, congenital heart disease, cardiomyopathy, congestive heart failure,rheumatic arthritis, secondary causes of hypertension, or active cancer.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
atherosclerosis
Patients With Clinically Evident Arterial Disease or Cardiovascular Risk Factors
Andet: No special interventioin
Comprehensive transthoracic M-mode, 2-dimensional, and Doppler echocardiographic studies will be performed using commercially available equipment. The aortic dimensions were assessed at end-diastole at the different levels:

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Zhejiang University

Samarbejdspartnere

Taizhou Hospital

Efterforskere

  • Studiestol: Jian-an Wang, Second Affiliated Hospital, School of Medicine, Zhejiang University
  • Ledende efterforsker: Li-jiang Tang, Taizhou Hospital, Wenzhou Medical College
  • Ledende efterforsker: Xiao-feng Chen, Second Affiliated Hospital, School of Medicine, Zhejiang University
  • Ledende efterforsker: Zhao-xia Pu, Second Affiliated Hospital, School of Medicine, Zhejiang University
  • Ledende efterforsker: Xian-fang Lin, Taizhou Hospital, Wenzhou Medical College

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. januar 2009

Primær færdiggørelse (Forventet)

1. december 2010

Studieafslutning (Forventet)

1. december 2015

Datoer for studieregistrering

Først indsendt

8. januar 2009

Først indsendt, der opfyldte QC-kriterier

8. januar 2009

Først opslået (Skøn)

12. januar 2009

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

14. januar 2009

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

12. januar 2009

Sidst verificeret

1. januar 2009

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • EPAD

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Forhøjet blodtryk

Kliniske forsøg med No special interventioin

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Sponsorer og samarbejdspartnere

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Narkotikainterventioner

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Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

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