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Minimally Invasive or Conventional Edge-To-Edge Repair for Severe Mitral Regurgitation Due to Bileaflet Prolapse in Barlow's Disease: Does the Surgical Approach Have an Impact on the Long-term Results?

Minimally Invasive or Conventional Edge-To-Edge Repair for Severe Mitral Regurgitation Due to Bileaflet Prolapse in Barlow's Disease: Does the Surgical Approach Have an Impact on the Long-term Results?

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04002648
Enrollment
208
Registered
2019-06-28
Start date
2016-12-01
Completion date
2016-12-01
Last updated
2020-08-07

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

Conditions

Barlow's Disease, Prolapse; Mitral

Brief summary

The study evaluates the long-term results of patients affected by bileaflet prolapse in Barlow's Disease, treated with edge-to-edge technique between 1997 and 2011.

Interventions

PROCEDURERight minithoracotomy

Incision of the right chest between 3rd and 4th or 4th and 5th intercostal space

PROCEDURESternotomy

Longitudinal resection of the sternum

Sponsors

Ospedale San Raffaele
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

Patients treated for bileaflet prolapse in Barlow's Disease between 1997 and 2011

Exclusion criteria

Age inferior to 18 years

Design outcomes

Primary

MeasureTime frameDescription
Cardiac Death12 yearsThe cumulative incidence function (CIF) of cardiac death at 12 years, with noncardiac death as a competing risk
Severe MR12 yearsThe cumulative incidence function (CIF) of recurrent mitral regurgitation (MR) \>\_ 3+, with death as the competing risk

Participant flow

Participants by arm

ArmCount
MT-Right
Right minithoracotomy: Incision of the right chest between 3rd and 4th or 4th and 5th intercostal space
104
Sternotomy
Sternotomy: Longitudinal resection of the sternum
104
Total208

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up20

Baseline characteristics

CharacteristicMT-RightSternotomyTotal
Age, Continuous36 years
STANDARD_DEVIATION 8
51 years
STANDARD_DEVIATION 13
43.5 years
STANDARD_DEVIATION 10.5
Region of Enrollment
Italy
102 participants104 participants206 participants
Sex: Female, Male
Female
68 Participants38 Participants106 Participants
Sex: Female, Male
Male
34 Participants66 Participants100 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 1020 / 104
serious
Total, serious adverse events
11 / 10210 / 104

Outcome results

Primary

Cardiac Death

The cumulative incidence function (CIF) of cardiac death at 12 years, with noncardiac death as a competing risk

Time frame: 12 years

ArmMeasureValue (NUMBER)
MT-RightCardiac Death3.9 percentage of participants with event
SternotomyCardiac Death3.8 percentage of participants with event
Primary

Severe MR

The cumulative incidence function (CIF) of recurrent mitral regurgitation (MR) \>\_ 3+, with death as the competing risk

Time frame: 12 years

ArmMeasureValue (NUMBER)
MT-RightSevere MR5.8 percentage of participants with event
SternotomySevere MR11.4 percentage of participants with event

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