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Assessment of the Learning Curve of Total Thoracoscopic Mitral Valve Repair

Assessment of the Learning Curve of Total Thoracoscopic Mitral Valve Repair Using Cumulative Sum Analysis (CUSUM)

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05106582
Enrollment
150
Registered
2021-11-03
Start date
2017-10-01
Completion date
2021-08-01
Last updated
2021-11-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Total Thoracoscopic Mitral Valve Plasty; Minimally Invasive; Learning Curve

Brief summary

Total thoracoscopic mitral valve plasty (MVP) is characterized by minimal trauma, minimal bleeding, and short postoperative recovery time. The learning curve of any new procedure needs to be evaluated for learning and replication.Using Cardiopulmonary bypass (CPB) time and Aortic clamping (AC) time as evaluation variables, we visualized the learning curve for total thoracoscopic MVP using Cumulative sum analysis. We also analyzed important postoperative variables such as postoperative drainage, duration of mechanical ventilation, ICU stay and postoperative hospital stay. The retrospective study comprised 150 consecutive patients who underwent total thoracoscopic MVP from October 2017 to July 2021.

Interventions

None listed

Sponsors

Yunlong Fan
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* age over 18 years who underwent total thoracoscopic MVP without concurrent cardiac Surgery

Exclusion criteria

* data miss greater than 10%

Design outcomes

Primary

MeasureTime frameDescription
Cardiopulmonary bypass (CPB) timeIntra-operativeCardiopulmonary bypass (CPB) time was used as the main variables for evaluation and visualization of the total thoracoscopic mitral valve plasty (MVP) learning curve using Cumulative sum.Cumulative sum (CUSUM) is a statistical method that focuses on results rather than on the process of performing a program skills, it generates graphs that allow for quick detection of deviations from pre-established standards and is an alternative tool that can be used to evaluate the performance of individual program. CUSUM can be generated based on set acceptable and unacceptable failure rates and the degree to which type 1(α) and type 2(β) errors (false positive and false negative errors) will be tolerated. CUSUM was defined as Sn = ∑(Xi -p0), where Xi = 0 for success and Xi = 1 for failure, p0 is the target reference.
Aortic clamping (AC) timeIntra-operativeAortic clamping (AC) time was used as the main variables for evaluation and visualization of the total thoracoscopic mitral valve plasty (MVP) learning curve using Cumulative sum.Cumulative sum (CUSUM) is a statistical method that focuses on results rather than on the process of performing a program skills, it generates graphs that allow for quick detection of deviations from pre-established standards and is an alternative tool that can be used to evaluate the performance of individual program. CUSUM can be generated based on set acceptable and unacceptable failure rates and the degree to which type 1(α) and type 2(β) errors (false positive and false negative errors) will be tolerated. CUSUM was defined as Sn = ∑(Xi -p0), where Xi = 0 for success and Xi = 1 for failure, p0 is the target reference.

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026