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03.12.2018 | Hepatobiliary-Pancreas | Ausgabe 5/2019

European Radiology 5/2019

Transhepatic forceps biopsy combined with biliary drainage in obstructive jaundice: safety and accuracy

Zeitschrift:
European Radiology > Ausgabe 5/2019
Autoren:
Audrey Fohlen, Celine Bazille, Benjamin Menahem, Marc Antoine Jegonday, Benoit Dupont, Vincent Le Pennec, Jean Lubrano, Boris Guiu, Jean Pierre Pelage
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s00330-018-5852-x) contains supplementary material, which is available to authorized users.

Abstract

Purpose

This study was conducted in order to investigate the safety and accuracy of percutaneous transluminal forceps biopsy (PTFB) during percutaneous biliary drainage (PTBD) in patients with a suspicion of malignant biliary stricture.

Material and methods

Fifty consecutive patients with obstructive jaundice underwent PTFB during PTBD. Biopsy specimens were obtained using 5.2-F flexible biopsy forceps and these specimens were independently analysed by two pathologists. Consensus was obtained in case of discrepancy. Biopsy was considered as a true positive when tumour cells were retrieved. In the absence of tumour cells, comparison with available surgical findings and/or endoscopic ultrasound fine-needle aspiration (EUS-FNA) and/or percutaneous liver biopsy and/or imaging or clinical follow-up was made to distinguish true and false negatives. Specificity, sensitivity, positive predictive value, negative predictive value and accuracy were calculated. Influence of tumour location and pre-operative imaging findings was evaluated. Adverse events were reported.

Results

Biliary drainage and tissue sampling were achieved in 100% of patients. Sensitivity and specificity were 70 and 100%, respectively, while overall accuracy was 72%. After excluding the first 25 patients, accuracy and sensitivity for tissue sampling reached 80 and 78%, respectively. Sensitivity was better (87%) if stenosis was located at the upper part of the biliary tree, compared to the lower part (55%). In case of cholangiocarcinoma or intraductal invasion suspected on imaging, biopsy was contributive in 84 and 81% of patients, respectively. Four complications occurred consisting of one bile leak, two haemobilia and one pneumoperitoneum.

Conclusion

PTFB combined with PTBD is a safe and effective technique for both histopathological diagnosis and biliary decompression of biliary strictures.

Key Points

Implications for patient care:
• Percutaneous transbiliary forceps biopsy is technically feasible (100% of tissue sampling in our study) and is a safe technique.
• Radiological management combining PTFB plus PTBD may allow diagnosis and treatment of the biliary stricture at the same time.
• Sensitivity and accuracy for PTFB reached 78 and 80%, respectively, with a 100% specificity.

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