CClinicalTrials.gg
CompletedNCT05043064Updated Feb 26, 2025Results posted

Robotic Cardiac Surgery Wet Lab Simulation Study

An interventional study of Wet lab tasks in Robotic Cardiac Surgery Simulation, sponsored by Aalborg University Hospital. Completed at 1 site in Denmark. Per ClinicalTrials.gov, last updated 2025-02-26.

Sponsored by Aalborg University Hospital · Not applicable, Interventional, and Other

Phase
Not applicable
Study type
Interventional
Enrollment
19
Allocation
Non-randomized
Sex
All
01

Study summary

The goal of this study is to investigate validity of the wet lab robotic cardiac surgery model used for training in robotic cardiac surgery and to evaluate learning curves in trainees of different surgical specialities. The investigators hope to recruit experienced robotic cardiac surgeons (experts) and cardiac and non-cardiac surgeons with minimal robotic experience (trainees). Participants will perform three predetermined tasks common in the wet lab robotic cardiac surgery training. Participants will be evaluated at baseline for each task. From experts' performance the mastery learning level will be calculated. Trainees will perform the tasks until mastery is achieved. The investigators will then be able to evaluate validity of the wet lab model and analyze learning curves in all participants by rating their performance.

02

Conditions studied

  • Robotic Cardiac Surgery Simulation

Keywords

  • Robotic Cardiac Surgery
  • Wet Lab Simulation
03

In context

Lead sponsor

Aalborg University Hospital is the lead sponsor of 195 studies on the registry; 39 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Experienced robotic cardiac surgeons: robotic surgeons with total volume > 50 robotic cardiac operations and at least 20 robotic cases annually
  • Cardiac surgeons with limited robotic experience (robotic novices): on-going or completed cardio-thoracic residency
  • Non-cardiac surgeons with limited robotic experience (robotic novices): on-going or completed surgical specialty residency (general surgery, urology, gynaecology, ENT surgery)

Exclusion criteria

Exclusion Criteria:

  • Robotic novices with > 5 hours experience of any robotic system
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
19 participants (actual)

Study arms

  • Active comparator
    Experienced robotic cardiac surgeons

    Procedure: Wet lab tasks

  • Active comparator
    Cardiac surgeons with limited robotic experience

    Procedure: Wet lab tasks

  • Active comparator
    Non-cardiac surgeons with limited robotic experience

    Procedure: Wet lab tasks

Interventions

  • ProcedureWet lab tasks

    Robotic-assisted internal thoracic artery harvesting, mitral annulus sutures placement and atrial closure in porcine model

06

What researchers measure

Primary outcomes

  1. Time-based Score

    The time-based score (TBS) was calculated as follows: TBS = maximal total training time per task - actual completion time - errors. Units of measure - seconds. Minimum score 0, Maximum score 1222. TBS was calculated in seconds, where 0 was the lowest score and a higher number indicated a faster time to perform the task. The score range

    Time frame: 6 months

Secondary outcomes

  1. Modified Global Evaluative Assessment of Robotic Skills (mGEARS)

    In modified Global Evaluative Assessment of Robotic Skills (mGEARS) the tasks were not rated on autonomy domain as autonomy could not be evaluated from recordings. The mGEARS score was used to evaluate the overall robotic proficiency by 5 domains: depth perception, bimanual dexterity, efficiency, force sensitivity, and robotic control. The score ranged from 5 to 25, where 5 and 25 indicated the least and most proficient performance, respectively.

    Time frame: 6 months

07

Results

Posted Feb 26, 2025

Participant flow

Participant flow — Overall Study
MilestoneExperienced Robotic Cardiac SurgeonsCardiac Surgeons With Limited Robotic ExperienceNon-cardiac Surgeons With Limited Robotic Experience
Started478
Completed478
Not completed000

Outcome measures

PrimaryTime-based Score

The time-based score (TBS) was calculated as follows: TBS = maximal total training time per task - actual completion time - errors. Units of measure - seconds. Minimum score 0, Maximum score 1222. TBS was calculated in seconds, where 0 was the lowest score and a higher number indicated a faster time to perform the task. The score range

Time frame:
6 months
Reported as:
Mean · score on a scale
Time-based Score
score on a scaleExperienced Robotic Cardiac SurgeonsCardiac Surgeons With Limited Robotic ExperienceNon-cardiac Surgeons With Limited Robotic Experience
Time-based Score553 ± 47127 ± 171143 ± 181
SecondaryModified Global Evaluative Assessment of Robotic Skills (mGEARS)

In modified Global Evaluative Assessment of Robotic Skills (mGEARS) the tasks were not rated on autonomy domain as autonomy could not be evaluated from recordings. The mGEARS score was used to evaluate the overall robotic proficiency by 5 domains: depth perception, bimanual dexterity, efficiency, force sensitivity, and robotic control. The score ranged from 5 to 25, where 5 and 25 indicated the least and most proficient performance, respectively.

Time frame:
6 months
Reported as:
Mean · score on a scale
Modified Global Evaluative Assessment of Robotic Skills (mGEARS)
score on a scaleExperienced Robotic Cardiac SurgeonsCardiac Surgeons With Limited Robotic ExperienceNon-cardiac Surgeons With Limited Robotic Experience
Modified Global Evaluative Assessment of Robotic Skills (mGEARS)20 ± 513 ± 211 ± 3

Adverse events

Collected over 6 months. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Experienced Robotic Cardiac Surgeons0/4 (0%)0/4 (0%)0/4 (0%)
Cardiac Surgeons With Limited Robotic Experience0/7 (0%)0/7 (0%)0/7 (0%)
Non-cardiac Surgeons With Limited Robotic Experience0/8 (0%)0/8 (0%)0/8 (0%)

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Experienced Robotic Cardiac SurgeonsCardiac Surgeons With Limited Robotic ExperienceNon-cardiac Surgeons With Limited Robotic ExperienceTotal
<=18 years0000
Between 18 and 65 years46717
>=65 years0112
Age, Continuous
Age, Continuous(years)Experienced Robotic Cardiac SurgeonsCardiac Surgeons With Limited Robotic ExperienceNon-cardiac Surgeons With Limited Robotic ExperienceTotal
Median44 (42 to 53)55 (43 to 63)42 (36 to 48)45 (42 to 55)
Sex: Female, Male
Sex: Female, Male(Participants)Experienced Robotic Cardiac SurgeonsCardiac Surgeons With Limited Robotic ExperienceNon-cardiac Surgeons With Limited Robotic ExperienceTotal
Female0235
Male45514
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)Experienced Robotic Cardiac SurgeonsCardiac Surgeons With Limited Robotic ExperienceNon-cardiac Surgeons With Limited Robotic ExperienceTotal
Count of participants———0
08

Study locations

1 site
  • Aalborg University Hospital
    Aalborg, 9000, Denmark
09

References and documents

Study documents

  • Protocol and statistical analysis plan · Feb 11, 2021

Documents are hosted by the registry — open the source record to download them.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 26, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05043064
Lead sponsor
Aalborg University Hospital
Responsible party
Gennady Atroshchenko (Principal Investigator, Aalborg University Hospital) — Principal investigator
First posted
Sep 13, 2021
Start date
Sep 1, 2021
Primary completion
Feb 28, 2022
Completion
Feb 28, 2022
Results posted
Feb 26, 2025
Last update
Feb 26, 2025

Study contacts

Gennady V Atroshchenko, MD
principal investigator · Aalborg University Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2025. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion