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21.08.2017 | Ausgabe 5/2018

Abdominal Radiology 5/2018

Pancreaticoduodenectomy with venous resection and reconstruction: current surgical techniques and associated postoperative imaging findings

Zeitschrift:
Abdominal Radiology > Ausgabe 5/2018
Autoren:
Ammar A. Javed, Karen Bleich, Fabio Bagante, Jin He, Matthew J. Weiss, Christopher L. Wolfgang, Elliot K. Fishman
Wichtige Hinweise
Ammar A. Javed and Karen Bleich have contributed equally to this work.

Abstract

Purpose

Introduction of effective neoadjuvant therapy for pancreas cancer has resulted in complex and aggressive operations involving vasculature resection. This results in complicated postoperative CT appearance of vasculature, which in addition to high rate of recurrence makes interpretation of imaging difficult. The aim of this study was to identify patterns of postoperative appearance of portal vein-superior mesenteric vein complex (PV-SMV).

Methods

A retrospective study was conducted on patients undergoing pancreaticoduodenectomy with PV-SMV resection and reconstruction (PVR) between 2004 and 2014. Clinicopathological data were collected from a prospectively maintained database. Postoperative CT scans were reviewed to identify patterns of venous and perivenous features.

Results

The mean age, of 70 patients included in the study, was 63.0 ± 12.2 years and 37 (52.9%) were males. The median time between surgery and postoperative scan was 10 days (IQR 7–25). Tangential resection with PVR via primary closure or use of a patch was performed in 37 (52.9%) patients while the rest underwent segmental resection with PVR via end-to-end anastomosis or use of a graft. Postoperative patterns of PV-SMV included concentric narrowing (N = 40, 57.1%), eccentric narrowing (N = 19, 27.1%) or partial venous thrombosis (N = 7, 10.0%). Perivenous features included perivenous fluid collection and induration (N = 57, 81.4%) and mass-like soft tissue thickening (N = 13, 18.6%). Long-term follow-up was available on 44 (62.9%) patients of which 28 (63.6%) demonstrated no recurrence of disease.

Conclusion

This is a novel study that identifies and categorizes postoperative features of PV-SMV after PVR. These features overlap with those of disease recurrence and their better understanding can results in an accurate interpretation of postoperative imaging.

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