Surgery for Delay-recognized or Defer-operated Type A Aortic Dissection

Status Completed

Clinical Trial Summary

From November 2004 to June 2020, there were more than 200 patients with acute TAAD patients who underwent aortic surgery at our hospital.Of all the patients in the study period, there were 34 patients (defined as study group) who sought for medical attention with symptoms for several days (median 5 days, range 3-7 days) or deferred aortic surgery several days later (median 3 days, range 2-7 days) even though acute TAAD was diagnosed on the same day when chest pain or back pain occurred. For reducing the selection bias, propensity score matching (PSM) was used to match the study group with the control group from all the patients treated at our hospital during the study period. Comparison between the two groups was performed.

Clinical Trial Description

From November 2004 to June 2020, there were more than 200 patients with acute TAAD patients who underwent aortic surgery at our hospital. The research protocol used in this study was approved by the institutional review board of MacKay Memorial Hospital (IRB number: 21MMHIS005e). Of all the patients in the study period, there were 34 patients (defined as study group) who sought for medical attention with symptoms for several days (median 5 days, range 3-7 days) or deferred aortic surgery several days later (median 3 days, range 2-7 days) even though acute TAAD was diagnosed on the same day when chest pain or back pain occurred. The mean age at presentation was 60.2 +/- 13.2 years (range 33.4~83.5 years). All the patients in the study group were divided into 3 groups: DP group (n=22) with acute TAAD diagnosis delayed by patient but received prompt aortic surgery; DD group (n=4) with acute TAAD diagnosis delayed by patient and received deferred aortic surgery; ID group (n=8) with acute TAAD diagnosis on the same day when the symptoms occurred but received deferred aortic surgery several days later. For reducing the selection bias, propensity score matching (PSM) was used to match the study group with the control group from all the patients treated at our hospital during the study period. Comparison between the two groups was performed. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT05044494
Study type	Observational
Source	Mackay Memorial Hospital
Contact
Status	Completed
Phase
Start date	November 2004
Completion date	June 2020

View Details

See also
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.