NCT06626906

Brief Summary

This observational study aims to provide evidence for identifying those who mostly suffer from LV injury and will help construct an optimal strategy for clinical practice. The main question it aims to answer is: Could acute PTT response surrounding obstructive respiratory events predict the incidence of subclinical abnormalities in LV structure and function in moderate-to-severe OSA patients? Participants who had undergone standard polysomnography and were diagnosed with moderate-to-severe OSA 5 years ago were required to complete the cardiac remodeling and function evaluation.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
376

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2014

Longer than P75 for all trials

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

January 1, 2014

Completed
10.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2024

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

September 26, 2024

Completed
8 days until next milestone

First Posted

Study publicly available on registry

October 4, 2024

Completed
Last Updated

October 4, 2024

Status Verified

October 1, 2024

Enrollment Period

10.4 years

First QC Date

September 26, 2024

Last Update Submit

October 3, 2024

Conditions

Keywords

retrospective cohortmulticenter studiesobservational study model

Outcome Measures

Primary Outcomes (2)

  • the cardiac remodeling evaluation

    The echocardiogram was carried out using machines equipped with a 2.5-MHz probe. All 2D and Doppler images and measurements were obtained in agreement with the European Association of Echocardiography/American Society of Echocardiography guidelines. Measures of LV remodeling included LV end-systolic (LVDs) in centimeters, and end-diastolic diameter (LVDd) in centimeters, interventricular septum thickness at end-diastole (IVSd) in centimeters, LV mass (LVM) in grams. LVM (LVMI) was calculated as the ratio of LVM in grams and body surface area in square meters. LVH was defined as an LVMI of 111 g/m2or 50 g/m2 in males and of 106 g/m2or 47 g/m2 in females.

    from October 2023 to May 2024

  • the cardiac function evaluation

    The echocardiogram was carried out using machines equipped with a 2.5-MHz probe. All 2D and Doppler images and measurements were obtained in agreement with the European Association of Echocardiography/American Society of Echocardiography guidelines. Measures of LV diastolic function included the average of the septal and lateral mitral annular descent tissue Doppler velocity (E') in cm/s, early mitral inflow velocity E' in cm/s, and the ratio of E/E'. Measures of systolic function included LV ejection fraction (EF) in percentage using Simpson biplane method of disks in 2-chamber and 4-chamber apical views (a single view was used in cases where one view was technically suboptimal).

    from October 2023 to May 2024

Interventions

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Inpatients aged 18 years and older, with moderate-to-severe OSA, who were diagnosed between January 1 2014, and December 31 2019 at The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, the First Affiliated Hospital of Nanjing Medical University, and the Affiliated Hospital of Xuzhou Medical University.

You may qualify if:

  • ≥18 years old;
  • Moderate to severe OSA(AHI≥15 times/hour).

You may not qualify if:

  • baseline hypoxia;
  • other sleep disorders;
  • received regular CPAP treatment(on average of ≥ 4 hours for CPAP use per night during the retrospective period);
  • the prevalent diseases at baseline might have influenced the results of echocardiographic results: hypertension chronic atrial fibrillation, atrioventricular block, bundle branch blocks, a permanent pacemaker, heart failure, valvular heart disease, pulmonary emboli, abnormal thyroid function, cardiomyopathies, pulmonary hypertension, use of digitalis, use of antiarrhythmic agents, use of beta-blockers, or use of calcium agonists affecting heart rate (HR), including verapamil and diltiazem.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (12)

  • Drager LF, Bortolotto LA, Figueiredo AC, Silva BC, Krieger EM, Lorenzi-Filho G. Obstructive sleep apnea, hypertension, and their interaction on arterial stiffness and heart remodeling. Chest. 2007 May;131(5):1379-86. doi: 10.1378/chest.06-2703.

    PMID: 17494787BACKGROUND
  • Alomri RMA, Kennedy GA, Wali S, Alhejaili F, Zelko M, Robinson SR. Association between cognitive dysfunction and nocturnal peaks of blood pressure estimated from pulse transit time in obstructive sleep apnoea. Sleep Med. 2022 Feb;90:185-191. doi: 10.1016/j.sleep.2022.01.005. Epub 2022 Jan 10.

  • Nisbet LC, Yiallourou SR, Nixon GM, Biggs SN, Davey MJ, Trinder J, Walter LM, Horne RS. Characterization of the acute pulse transit time response to obstructive apneas and hypopneas in preschool children with sleep-disordered breathing. Sleep Med. 2013 Nov;14(11):1123-31. doi: 10.1016/j.sleep.2013.06.010. Epub 2013 Aug 3.

  • Nisbet LC, Nixon GM, Yiallourou SR, Biggs SN, Davey MJ, Trinder J, Walter LM, Horne RS. Sleep-disordered breathing does not affect nocturnal dipping, as assessed by pulse transit time, in preschool children: evidence for early intervention to prevent adverse cardiovascular effects? Sleep Med. 2014 Apr;15(4):464-71. doi: 10.1016/j.sleep.2013.11.787. Epub 2014 Feb 10.

  • Foo JY, Wilson SJ, Williams GR, Harris MA, Cooper DM. Pulse transit time changes observed with different limb positions. Physiol Meas. 2005 Dec;26(6):1093-102. doi: 10.1088/0967-3334/26/6/018. Epub 2005 Nov 7.

  • Kwon Y, Jacobs DR Jr, Lutsey PL, Brumback L, Chirinos JA, Mariani S, Redline S, Duprez DA. "Sleep disordered breathing and ECG R-wave to radial artery pulse delay, The Multi-Ethnic Study of Atherosclerosis". Sleep Med. 2018 Aug;48:172-179. doi: 10.1016/j.sleep.2018.05.005. Epub 2018 May 21.

  • Foo JY, Lim CS. Pulse transit time as an indirect marker for variations in cardiovascular related reactivity. Technol Health Care. 2006;14(2):97-108.

  • Parish JM, Somers VK. Obstructive sleep apnea and cardiovascular disease. Mayo Clin Proc. 2004 Aug;79(8):1036-46. doi: 10.4065/79.8.1036.

  • Imadojemu VA, Gleeson K, Gray KS, Sinoway LI, Leuenberger UA. Obstructive apnea during sleep is associated with peripheral vasoconstriction. Am J Respir Crit Care Med. 2002 Jan 1;165(1):61-6. doi: 10.1164/ajrccm.165.1.2009062.

  • Ogilvie RP, Genuardi MV, Magnani JW, Redline S, Daviglus ML, Shah N, Kansal M, Cai J, Ramos AR, Hurwitz BE, Ponce S, Patel SR, Rodriguez CJ. Association Between Sleep Disordered Breathing and Left Ventricular Function: A Cross-Sectional Analysis of the ECHO-SOL Ancillary Study. Circ Cardiovasc Imaging. 2020 May;13(5):e009074. doi: 10.1161/CIRCIMAGING.119.009074. Epub 2020 May 15.

  • Bradley TD, Floras JS. Sleep apnea and heart failure: Part I: obstructive sleep apnea. Circulation. 2003 Apr 1;107(12):1671-8. doi: 10.1161/01.CIR.0000061757.12581.15. No abstract available.

  • Gottlieb DJ, Yenokyan G, Newman AB, O'Connor GT, Punjabi NM, Quan SF, Redline S, Resnick HE, Tong EK, Diener-West M, Shahar E. Prospective study of obstructive sleep apnea and incident coronary heart disease and heart failure: the sleep heart health study. Circulation. 2010 Jul 27;122(4):352-60. doi: 10.1161/CIRCULATIONAHA.109.901801. Epub 2010 Jul 12.

MeSH Terms

Conditions

Sleep Apnea, Obstructive

Interventions

EchocardiographyBlood Specimen Collection

Condition Hierarchy (Ancestors)

Sleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Intervention Hierarchy (Ancestors)

Cardiac Imaging TechniquesDiagnostic ImagingDiagnostic Techniques and ProceduresDiagnosisUltrasonographyHeart Function TestsDiagnostic Techniques, CardiovascularSpecimen HandlingClinical Laboratory TechniquesPuncturesSurgical Procedures, OperativeInvestigative Techniques

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Chief physician, Associate professor

Study Record Dates

First Submitted

September 26, 2024

First Posted

October 4, 2024

Study Start

January 1, 2014

Primary Completion

May 31, 2024

Study Completion

May 31, 2024

Last Updated

October 4, 2024

Record last verified: 2024-10

Data Sharing

IPD Sharing
Will not share