Clinical trial NCT02008409: Evaluation of Safety and Efficacy of the EndoLift Liver Retractor
Official title: Evaluation of Safety and Efficacy of the EndoLift Liver Retractor: a Pilot Study of a New Internal Laparoscopic Liver Retraction Device
Study type: INTERVENTIONAL
Overall status: WITHDRAWN
Phase: NA
Conditions: Minimally Invasive Surgical Procedure
Laparoscopic Gastric Banding
Laparoscopic Roux-en-Y Gastric Bypass
Laparoscopic Sleeve Gastrectomy
Laparoscopic Fundoplication Procedure
Laparoscopic Heller Myotomy
Laparoscopic Paraesophageal Hernia Repair
Laparoscopic Gastric Resection
Keywords: Minimally Invasive Surgery
EndoLift Liver Retractor
Lead sponsor: Duke University
Sponsor class: OTHER
Collaborators: name: Virtual Ports
First posted: 2013-12-11
Enrollment: 0
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: BASIC_SCIENCE

Brief summary: The primary goal of the study is to evaluate the safety of the EndoLift Liver Retractor as an internal laparoscopic liver retraction device. The secondary goals of the study are to evaluate the efficacy of the EndoLift Liver Retractor as an internal laparoscopic liver retraction device and to identify 'best practices' for device utilization.

This study evaluates the use of a specific type of liver retractor (EndoLift). Liver retractors are often necessary during MIS procedures, but this retractor is the only device which is deployed internally (NOT requiring additional skin punctures/incisions for placement of the liver retractor device). All patients undergoing minimally invasive surgery (MIS) at Duke Regional Hospital will be approached.

The new device is expected to have a minimal risk safety profile. The investigators believe that these risks are no more than would be encountered by using any other commercially available retraction device available on the market today. Data will be collected and analyzed by the identified investigators. Continuous variables will be analyzed via T-test and Chi-square analysis will be applied to discontinuous variables. Statistical analysis software such as SPSS® will be utilized when necessary.

Detailed description: Since the introduction of minimally invasive surgery (MIS) techniques in the 1980's laparoscopic surgery has become the preferred approach for a number of intra-abdominal procedures such as cholecystectomy, gastric bypass, etc.\[1\] One of the key components of laparoscopic surgery, of any surgery for that matter, is the ability to achieve and maintain adequate visualization of the surgical target throughout the procedure. During certain MIS procedures the patient's internal organs, such as the liver, can block or obscure the surgical view. A number of surgical instruments (retractors) have been developed to help retract abdominal organs "out of the way" during MIS procedures, but all of these devices require an additional abdominal wall puncture/incision to adequately position the device.

Virtual Ports, Ltd. has developed a new laparoscopic liver retractor device, the EndoLift Liver Retractor. This new device does not require additional skin incisions and is placed internally (inside the abdomen) during laparoscopic surgery. The device has 2 ends that "grab" tissue. The body of the device is a smooth, cylindrical steel bar that has minimal risk of traumatizing tissues/organs. The ends of the device are positioned on to peritoneal surfaces (e.g., anterior abdominal wall and/or the right crus of the diaphragm) and the body of the device (smooth cylindrical bar) "pushes" the liver away from the surgical field.

Eligibility criteria: Inclusion Criteria:

Subjects eligible for this clinical study must fulfill all of the following:

* Subject is 18 years of age or older.
* Subject is scheduled for a MIS procedure:

  1. Laparoscopic Gastric Banding
  2. Laparoscopic Roux-en-Y Gastric Bypass
  3. Laparoscopic Sleeve Gastrectomy
  4. Laparoscopic Fundoplication Procedure (Nissen, Toupet, Dor, etc.)
  5. Laparoscopic Heller myotomy
  6. Laparoscopic paraesophageal hernia repair
  7. Laparoscopic gastric resection
* Subject is able to comprehend and give informed consent for participation in this study.

Exclusion Criteria:

* Subjects not eligible for this research study include those that have any of the following:

  * Subject is unable to comprehend and give informed consent for participation in this study.
  * Subject who are pregnant.

Primary outcomes:
measure: Safety
timeFrame: Day 1 post-op
Secondary outcomes:
measure: Effective use of the EndoLift Liver Retractor
timeFrame: Up to 6 hours during the operative procedure
Other outcomes:
measure: Physician satisfaction
timeFrame: Day 1 Post-op
Locations:
city: Durham
country: United States
facility: Duke Regional Hospital
state: North Carolina
Study officials:
affiliation: Duke University
name: Dana Portenier, MD
role: PRINCIPAL_INVESTIGATOR
References: