NCT01877616

Brief Summary

Little is known on the prevalence of sleep disorders and their role in the increased prevalence of cardiovascular diseases in the developing world. We To assess the prevalence of major sleep disorders in a rural South American population, and to determine whether these conditions are associated with a poor cardiovascular health or with the occurrence of stroke or ischemic heart disease. This is a three-phase, population-based, door-to-door survey in Atahualpa. During phase I, all residents aged ≥40 years will be screened with validated Spanish versions of five questionnaires to evaluate major sleep disorders. In phase II, neurologists will examine persons suspected of having a sleep disorder and a random sample of negative individuals to assess the prevalence of these conditions and to validate the accuracy of questionnaires. In phase III, patients with a confirmed sleep disorder will undergo nocturnal polysomnography for achieving a more specific diagnosis. The occurrence of sleep disorders will be correlated with the cardiovascular health of the population as well as with the presence of stroke and ischemic heart disease. This epidemiological study may prove cost-effective in improving sleep conditions of people living in rural areas of developing countries, and may be used as a model for the evaluation of sleep disorders and their cardiovascular correlates in these populations.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
650

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jun 2013

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 1, 2013

Completed
8 days until next milestone

First Submitted

Initial submission to the registry

June 9, 2013

Completed
4 days until next milestone

First Posted

Study publicly available on registry

June 13, 2013

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2013

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2013

Completed
Last Updated

November 26, 2013

Status Verified

November 1, 2013

Enrollment Period

4 months

First QC Date

June 9, 2013

Last Update Submit

November 24, 2013

Conditions

Keywords

sleep disordersinsomniahypersomniasleep-disordered breathingcardiovascular healthstrokeischemic heart diseaseAtahualpa

Outcome Measures

Primary Outcomes (1)

  • prevalence of sleep disorders

    prevalence of sleep disorders will be assessed by a door-to-door survey. Then, sleep-certified specialists will move to Atahualpa to evaluate suspected persons, and positive cases will undergo polysomnography

    five years

Secondary Outcomes (1)

  • correlation of sleep disorders with the presence of cardiovascular risk factors, stroke, and ischemic heart disease

    five years

Other Outcomes (1)

  • cognitive decline

    five years

Study Arms (1)

diagnostic test

OTHER

all persons with a definitive diagnosis of a major sleep disorder (insomnia, hypersomnia, sleep-disordered breathing) will be followed annually for at least five years

Other: diagnostic test

Interventions

Polysomnography

diagnostic test

Eligibility Criteria

Age40 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Atahualpa

Atahualpa, Santa Elena, 00000, Ecuador

Location

Related Publications (5)

  • Del Brutto OH, Penaherrera E, Ochoa E, Santamaria M, Zambrano M, Del Brutto VJ; Atahualpa Project Investigators. Door-to-door survey of cardiovascular health, stroke, and ischemic heart disease in rural coastal Ecuador--the Atahualpa Project: methodology and operational definitions. Int J Stroke. 2014 Apr;9(3):367-71. doi: 10.1111/ijs.12030. Epub 2013 Mar 19.

    PMID: 23506643BACKGROUND
  • Del Brutto OH, Santamaria M, Ochoa E, Penaherrera E, Santibanez R, Pow-Chon-Long F, Zambrano M, Del Brutto VJ. Population-based study of cardiovascular health in Atahualpa, a rural village of coastal Ecuador. Int J Cardiol. 2013 Sep 30;168(2):1618-20. doi: 10.1016/j.ijcard.2013.01.017. Epub 2013 Feb 11. No abstract available.

    PMID: 23410492BACKGROUND
  • Del Brutto OH, Tettamanti D, Del Brutto VJ, Zambrano M, Montalvan M. Living alone and cardiovascular health status in residents of a rural village of coastal Ecuador (The Atahualpa Project). Environ Health Prev Med. 2013 Sep;18(5):422-5. doi: 10.1007/s12199-013-0344-8. Epub 2013 Jun 4.

    PMID: 23733495BACKGROUND
  • Del Brutto OH, Mera RM, Costa AF, Rumbea DA, Recalde BY, Castillo PR. Long coronavirus disease-related persistent poor sleep quality and progression of enlarged perivascular spaces. A longitudinal study. Sleep. 2022 Sep 8;45(9):zsac168. doi: 10.1093/sleep/zsac168. No abstract available.

  • Del Brutto OH, Mera RM, Costa AF, Recalde BY, Castillo PR. Sleep quality deterioration in middle-aged and older adults living in a rural Ecuadorian village severely struck by the SARS-CoV-2 pandemic. A population-based longitudinal prospective study. Sleep. 2021 Aug 13;44(8):zsab041. doi: 10.1093/sleep/zsab041.

MeSH Terms

Conditions

Sleep Initiation and Maintenance DisordersDisorders of Excessive SomnolenceSleep Apnea SyndromesStrokeMyocardial IschemiaSleep Wake Disorders

Condition Hierarchy (Ancestors)

Sleep Disorders, IntrinsicDyssomniasNervous System DiseasesMental DisordersApneaRespiration DisordersRespiratory Tract DiseasesCerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesVascular DiseasesCardiovascular DiseasesHeart DiseasesNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Oscar H Del Brutto, MD

    Universidad Espiritu Santo - Ecuador

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Research Professor

Study Record Dates

First Submitted

June 9, 2013

First Posted

June 13, 2013

Study Start

June 1, 2013

Primary Completion

October 1, 2013

Study Completion

November 1, 2013

Last Updated

November 26, 2013

Record last verified: 2013-11

Locations