Rouviere Sulcus Plane and Hepatic Hilum Plane, Which is Better as a Landmark in Laparoscopic Bile Duct Surgerys

RS and the RS plane are important anatomical markers in laparoscopic cholecystectomy. However, there are many variations in the shape and orientation of the RS, and the RS plane is an imaginary plane, which can be misjudged by different surgeons. The purpose of this study is to introduce a more intuitive anatomical marker and anatomical plane, hilum plane, and discuss the application value of hilum plane in laparoscopic biliary surgery by comparing it with RS and RS plane.

Study Overview

• Status: Recruiting
• Conditions: Cholelithiasis; Laparoscopic Cholecystectomy

Detailed Description

Hepatic hilum plane is the hepatoduodenal serosa plane that extends from the base of the liver IVa segment down to the first segment of the gallbladder triangle.

During the operation, first pulling the gallbladder to the head side, using the separating forceps to slide down horizontally from the hilum (the basement of hepatic segment Ⅳ), and along the serous of hepatoduodenal ligament, that is so called "hilum plane".

It forms a "neck-shoulder" structure when the hilar plane meets the tent-like hepatobiliary triangle. the serosa of hepatobiliary triangle was dissected on the neck area and ventral side of hilar plane, and the serosa of posterior triangle of the gallbladder was also cutted on the same extension line . In this process, the type and orientation of RS, the relationship between the plane of the RS sulcus and the plane of the hilar plane were also recorded and compared with hilum plane.

• Study Type: Observational
• Enrollment (Anticipated): 100

Contacts and Locations

• Study Contact: Name: lei wang, MD; Phone Number: +8615156086983; Email: wl9252@126.com

Study Locations

• China
  • Anhui
    • Hefei, Anhui, China, 230601
      • Recruiting
      • Lei Wang
      • Contact: lei wang, MD; Phone Number: 15156086983; Email: wl9252@126.com

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 80 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

a consecutive patients undergoing elective laparoscopic cholecystectomies at the second affiliated hospital of Anhui medical university

Description

Inclusion Criteria:

Benign disease of the gallbladder requires surgery

Exclusion Criteria:

Patients with severe cirrhosis or had a history of partial hepatectomy were excluded from the statistics .

patients with unexpected gallbladder carcinoma.

Study Plan

How is the study designed?

Design Details

• Observational Models: Case-Only
• Time Perspectives: Retrospective

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort
The type and orientation of Rouviere sulcus; "open type", "fused type" or "absent type"

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
The type of Rouviere sulcus and the "fake RS"	The Rouviere sulcus was present if a fissure was seen in the liver parenchyma on the right side of the gallbladder and continues with the right posterior hepatic pedicle(fig ). RS were further subdivided into three classes: "open type", "fused type" or "absent type"). The "plane of RS sulcus" was also recorded If the RS was not the absent type.	up to 30 days after surgery
The orientation of RS and The relationship between hepatic portal plane and RS plane	the RS plane is an imaginary line drawn along the sulcus and carried across to the base of segment IV and form a "security triangle". Similarly, the hilar plane can also form a triangle in posterior triangle of gallbladder. The areas of these triangles were Compared.	up to 30 days after surgery

Collaborators and Investigators

• Sponsor: The Second Hospital of Anhui Medical University
• Investigators: Study Chair: hui hou, master, Second Affiliated hospital of Anhui Medical University

Study record dates

Study Major Dates

• Study Start (Actual): January 4, 2021
• Primary Completion (Anticipated): October 1, 2021
• Study Completion (Anticipated): October 1, 2021

Study Registration Dates

• First Submitted: August 4, 2021
• First Submitted That Met QC Criteria: August 4, 2021
• First Posted (Actual): August 12, 2021

Study Record Updates

• Last Update Posted (Actual): August 12, 2021
• Last Update Submitted That Met QC Criteria: August 4, 2021
• Last Verified: August 1, 2021

More Information

Terms related to this study

• Keywords: anatomy
• Additional Relevant MeSH Terms: Digestive System Diseases; Pathological Conditions, Anatomical; Gallbladder Diseases; Biliary Tract Diseases; Calculi; Gallstones; Cholelithiasis; Cholecystolithiasis
• Other Study ID Numbers: 1458 (CSL Behring)

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: Undecided

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No