Clinical application of the hanover classification for iatrogenic bile duct lesions
Hüseyin Bektas1, Moritz Kleine, Azad Tamac
1Klinik für Allgemein, Viszeral- und Transplantationschirurgie, Medizinische Hochschule Hannover, Carl-Neuberg-Stra β e 1, 30625 Hanover, Germany.
Insights
The Hanover classification helps standardize the description of iatrogenic bile duct injuries, guiding evidence-based treatment recommendations for better patient outcomes.
Area of Science:
- Hepatobiliary surgery
- Gastroenterology
- Surgical pathology
Background:
- Limited evidence exists for classifying and treating iatrogenic bile duct lesions.
- Standardized approaches are needed for consistent patient management.
Purpose of the Study:
- To analyze the variety of iatrogenic bile duct lesions using the Hanover classification.
- To evaluate the impact of this classification on surgical treatment and patient outcomes.
Main Methods:
- Retrospective analysis of data from 93 patients with iatrogenic bile duct lesions.
- Application of the Hanover classification to categorize lesion types.
- Evaluation of surgical interventions and patient outcomes.
Main Results:
- Bile duct lesions occurred with vascular injuries in 21.5% of patients.
- Treatment varied based on lesion type, including hepaticojejunostomy, partial hepatectomy, and Whipple's procedure.
- Treatment congruence with classification recommendations ranged from 66-100%.
Conclusions:
- The Hanover classification aids in standardizing the description of iatrogenic bile duct lesions.
- This classification can support evidence-based, lesion-type-specific treatment strategies.
- Improved standardization may lead to better surgical outcomes and reduced mortality.
Abstract:
Background. There is only limited evidence available to justify generalized clinical classification and treatment recommendations for iatrogenic bile duct lesions. Methods. Data of 93 patients with iatrogenic bile duct lesions was evaluated retrospectively to analyse the variety of encountered lesions with the Hanover classification and its impact on surgical treatment and outcomes. Results. Bile duct lesions combined with vascular lesions were observed in 20 patients (21.5%). 18 of these patients were treated with additional partial hepatectomy while the majority were treated by hepaticojejunostomy alone (n = 54). Concomitant injury to the right hepatic artery resulted in additional right anatomical hemihepatectomy in 10 of 18 cases. 8 of 12 cases with type A lesions were treated with drainage alone or direct suture of the bile leak while 2 patients with a C2 lesion required a Whipple's procedure. Observed congruence between originally proposed lesion-type-specific treatment and actually performed treatment was 66-100% dependent on the category of lesion type. Hospital mortality was 3.2% (n = 3). Conclusions. The Hannover classification may be helpful to standardize the systematic description of iatrogenic bile duct lesions in order to establish evidence-based and lesion-type-specific treatment recommendations.
