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Study of Peri-operative and Acute Outcomes After Robotic-assisted Cholecystectomy

SPARC: Study of Peri-operative and Acute Outcomes After Robotic-assisted Cholecystectomy

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04551820
Acronym
SPARC
Enrollment
505
Registered
2020-09-16
Start date
2020-08-05
Completion date
2021-09-30
Last updated
2026-09-09

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

Conditions

Cholecystectomy

Brief summary

A multi-center retrospective chart review of short-term outcomes associated with robotic-assisted cholecystectomies performed during regular hours and after-hours.

Detailed description

The study is a retrospective multi-center chart review study of short-term patient outcomes through 30 days after robotic-assisted cholecystectomies performed during regular hours and after-hours. The primary outcomes include the rate of conversion to open, rate of intra-operative adverse events, the rate of post-operative adverse events relating to the cholecystectomy within 30 days, and re-admissions and re-operations relating to the cholecystectomy within 30 days. In addition, operative time, the rate of use of intra-operative imaging, and the hospital length of stay will be collected as secondary outcomes.

Interventions

PROCEDURERegular Hours

The regular hours cohort includes cholecystectomies performed during the day shift at the Institution during Monday through Friday, not inclusive of national holidays.

PROCEDUREAfter Hours

The after hours cohort includes cholecystectomies performed outside of the day shift at the Institution during Monday through Friday, on the weekend, or during a national holiday.

With the patient under general anesthesia, several small incisions are made in the abdomen. Ports are placed, the abdomen is insufflated, and the da Vinci Robotic Surgical System (Intuitive) is docked to the patient and used to complete the cholecystectomy according to the surgeon's standard of care.

Sponsors

Intuitive Surgical
Lead SponsorINDUSTRY

Study design

Observational model
CASE_ONLY
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Subject between 18 and 80 years of age at the time of surgery. * Subject underwent a robotic-assisted cholecystectomy during the study time period.

Exclusion criteria

* Cholecystectomy was performed as a secondary procedure.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Cholecystectomy Converted to OpenIntra-operativeThe rate of conversion of the cholecystectomy to open, defined as robotic-assisted surgery converted to an open approach.
Number of Adverse EventsIntra-operative through the 30 day follow-up periodIntra-operative or post-operative adverse events related to the cholecystectomy
Re-admissionsAfter discharge from the hospital post-procedure through the 30 day follow-up periodRe-admissions to the hospital related to the cholecystectomy through the 30 day follow-up period
Re-operationsAfter the procedure but prior to discharge, through the 30 day follow-up periodRe-operations related to the cholecystectomy through the 30 day follow-up period

Secondary

MeasureTime frameDescription
Operative TimeIntra-operativeOperative time, defined as first incision to closure of the incision
Use of Intra-operative ImagingIntra-operativeThe rate of use of intra-operative imaging, including indocyanine green fluorescent imaging and cholangiography
Length of Hospital Stay (LOS)From admission to discharge, up to approximately one weekHow long the patient was admitted to the hospital

Countries

United States

Baseline characteristics

Characteristic
Age, Continuous50.0 years
Ethnicity (NIH/OMB)
Hispanic or Latino
53 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
116 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
Race (NIH/OMB)
Asian
11 Participants
Race (NIH/OMB)
Black or African American
22 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
71 Participants
Race (NIH/OMB)
White
380 Participants
Sex: Female, Male
Female
218 Participants
Sex: Female, Male
Male
52 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 3360 / 169
other
Total, other adverse events
18 / 3369 / 169
serious
Total, serious adverse events
0 / 3360 / 169

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 10, 2026