Open Surgical Approach for Hepatic Hydatid Cyst Drainage
The open surgical procedure for draining a hepatic hydatid cyst is called "open cyst deroofing/fenestration" or "omentoplasty" (also known as the Mabit-Lagrot technique), depending on how the residual cavity is managed.
Surgical Nomenclature and Techniques
The open approach encompasses several specific procedures:
Primary Procedure Names:
- Open cyst fenestration/deroofing: The basic open technique involving drainage and resection of the extrahepatic cyst wall 1
- Omentoplasty: Open fenestration with filling of the residual cavity using omentum 2, 3, 4
- Mabit-Lagrot technique: A specific open conservative approach, often combined with Kehr drainage 5
Alternative Open Techniques:
- Capitonnage (capsulorrhaphy): Suturing the cyst walls together to obliterate the cavity 4, 6
- External tube drainage (ETD): Placement of drainage tubes into the residual cavity 2, 3
- Partial hepatectomy with cyst fenestration: For more extensive disease 1
Evidence-Based Comparison
Omentoplasty demonstrates superior outcomes compared to external tube drainage in multiple studies:
- Lower complication rates: 22.73% vs 42.86% for ETD 2
- Shorter hospital stays: Mean 12.8 days vs 19.8 days for ETD 3
- Reduced pain scores and faster return to daily activities 2
- Lower recurrence rates: Zero recurrences with omentoplasty vs three with ETD in one study 2
- Fewer bile leaks and cavity infections 2, 3
Clinical Context
While the provided guidelines [1-1] focus primarily on simple hepatic cysts rather than hydatid cysts specifically, the surgical principles overlap. The guidelines note that laparoscopic approaches are now preferred over open surgery when feasible due to shorter procedural time, reduced postoperative hospital stays, and less postoperative pain, while maintaining comparable recurrence rates and symptom relief 1.
However, for hydatid cysts specifically, omentoplasty remains the procedure of choice for uncomplicated cases when open surgery is indicated 3, 4. External tube drainage should be reserved for infected cysts, and biliary drainage procedures must be added when intrabiliary rupture is present 3.
Important Caveats
The choice of open technique must be individualized based on:
- Cyst complications: Infection, biliary rupture (17.3% incidence), or impending rupture 3, 7
- Cyst characteristics: Size, location (posterior/intraparenchymal cysts may require different approaches) 8
- Patient stability: Hemodynamically unstable patients may require more conservative approaches 7
The term used depends on the specific surgical steps performed, but "open omentoplasty" or "open cyst fenestration with omentoplasty" most accurately describes the preferred open approach for uncomplicated hepatic hydatid cysts.