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Future Liver Remnant (FLR) Increase in Patients with Colorectal Liver Metastases Is Highest the First Week After Portal Vein Occlusion: FLR Increase in Patients with CRLM Is Highest the First Week After PVO

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  • Kristina Hasselgren
  • Per Sandström
  • Bård Ingvald Røsok
  • Ernesto Sparrelid
  • Gert Lindell
  • Peter Nørgaard Larsen
  • Anna Lindhoff Larsson
  • Nicolai A Schultz
  • Bjorn Atle Björnbeth
  • Bengt Isaksson
  • Magnus Rizell
  • Bergthor Björnsson
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BACKGROUND: Portal vein occlusion (PVO) is an established method to increase the volume of the future liver remnant (FLR). The main reasons for not proceeding to radical hepatectomy are lack of volume increase and tumor progression due to a wait-time interval of up to 8 weeks. The hypothesis was that the increase in FLR volume is not linear and is largest during the first weeks.

METHODS: Patients with colorectal liver metastases (CRLM) and standardized future liver remnant (sFLR) < 30% treated with PVO were prospectively included. All patients had at least one CT evaluation before radical hepatectomy.

RESULTS: Forty-eight patients were included. During the first week after PVO, the kinetic growth rate (KGR) was 5.4 (± 4), compared to 1.5 (± 2) between the first and second CT (p < 0.05). For patients reaching adequate FLR and therefore treated with radical hepatectomy, the KGR was 7 (± 4) the first week, compared to 4.3 (± 2) for patients who failed to reach a sufficient volume (p = 0.4). During the interval between the first and second CT, the KGR was 2.2 (± 2), respectively (± 0.1) (p = 0.017).

DISCUSSION: The increase in liver volume after PVO is largest during the first week. As KGR decreases over time, it is important to shorten the interval between PVO and the first volume evaluation; this may aid in decision-making and reduce unnecessary waiting time.

Original languageEnglish
JournalJournal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract
Volume23
Issue number3
Pages (from-to)556-562
Number of pages7
ISSN1091-255X
DOIs
Publication statusPublished - Mar 2019

    Research areas

  • Colorectal liver metastases, Future liver remnant, Liver surgery, Portal vein embolization, Portal vein ligation

ID: 56537979