Pattern of branching of the left portal vein: an anatomo-radiological study

Macchi, Veronica; Porzionato, Andrea; Morra, Aldo; Zanon, Giovanni Franco; De, Raffaele

doi:10.1007/s00276-015-1440-9

Cited by 6 publications

(7 citation statements)

References 35 publications

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“…We observed that the mean number of portal branches from LPV to segment I, II, III, and IV were 2, 2, 2, and 8 branches, respectively. Macchi et al found that the range of portal branches to segment II, III, and IV to be 1–3, 1–6, and 4–9, respectively (Macchi et al, ). Unless all the portal branches to the segment to be resected are precisely identified and ligated, the line of demarcation is likely to be inaccurate.…”

Section: Discussionmentioning

confidence: 99%

“…The number of second order branches feeding the segments I, II, III, and IV is actually much more important (Majno et al, ). Despite several studies concerning the branching pattern of the LPV (Macchi et al, ; Maurer et al, ), we decided to reconsider the LPV branching pattern in the human liver.…”

Section: Introductionmentioning

confidence: 99%

“…Despite several studies concerning the branching pattern of the LPV (Macchi et al, 2015;Maurer et al, 2017), we decided to reconsider the LPV branching pattern in the human liver.…”

Section: Introductionmentioning

confidence: 99%

“…Variations at the second and third order divisions are more frequent in the right hemiliver (Bismuth, 1982;Couinaud, 1989;Koç et al, 2007). Contrastingly, the left portal anatomy is fairly constant (Couinaud, 1989;Macchi et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…It describes an arch toward the round ligament. Throughout its course, it gives rise to several second and third order branches that provide portal blood supply to segments I–IV (Macchi et al, ; Tanaka et al, ). The concavity of the arch embraces segment IV and gives off two branches: a first one for segment II and a more distal one for segment III.…”

Section: Introductionmentioning

confidence: 99%

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Segmental branching pattern of the left portal vein: Anatomical characteristics and clinical implications

Najah

Ammar²,

Gupta

et al. 2017

Clinical Anatomy

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The existing knowledge on anatomy of segmental branches of left portal vein (LPV) is limited. This study aims to describe the surgical anatomy and variations of LPV and its segmental branching pattern. Forty fresh cadaveric liver dissections were performed. The dissection of LPV was carried out from its emergence at the level of the portal vein bifurcation to its segmental branches penetrating the left hemiliver. LPV characteristics, the number, and situation of its segmental branches were recorded. LPV comprises two portions: a 28 ± 6.7 mm-long transverse portion (TPLPV) and a 34.9 ± 4.4 mm-long umbilical portion (UPLPV). Mean number of LPV branches to segments I, II, III, and IV was 2 ± 1 (1-6), 2 ± 1 (1-4), 2 ± 1 (1-5), and 8 ± 2 (4-14), respectively. A single large vein supplied segment II in 90% of the cases. Segment III constantly had one vein arising from the left horn of UPLPV with mean diameter of 5.9 ± 1.6 mm. Most of the veins to segment IV took origin from the right horn of UPLPV with a mean number of 5 ± 2 (2-8). Segmental veins arising from UPLPV and TPLPV and supplying segment IV were present in 90 and 45% of the cases respectively. Segmental veins arising from LPV are often multiple and variable in position. Detailed knowledge of these veins is mandatory in order successfully perform anatomical liver resections or monosegment graft harvest for pediatric liver transplantation. Clin. Anat, 2017. © 2017 Wiley Periodicals, Inc.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Despite several studies concerning the branching pattern of the LPV (Macchi et al, 2015;Maurer et al, 2017), we decided to reconsider the LPV branching pattern in the human liver.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Segmental branching pattern of the left portal vein: Anatomical characteristics and clinical implications

Najah

Ammar²,

Gupta

et al. 2017

Clinical Anatomy

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Portal vein variants associated with right hepatectomy: An analysis of abdominal CT angiography with 3D reconstruction

et al. 2019

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Glissonian approach has been described as a selective vascular clamping procedure during hepatectomy based on external anatomical landmarks. Anatomical variations of the right Glissonian pedicle have been identified with an increased risk of clamping failure during Glissonian approach. The objective of this study was to characterize the anatomical variations of the right Glissonian pedicle at risk of clamping failure during right hepatectomy. This was a retrospective analysis of abdominal multiphasic CT and routine 3D reconstruction (n = 346). Anatomical variations at risk of clamping failure were Types 1 to 3 (Madoff's classification) and an angle of less than 50 between the portal vein and the left portal vein. Primary objective was the risk of right Glissonian pedicle clamping failure. Secondary objectives were the rate of normal anatomy, the rate of variations, and the rate of incomplete or extended clamping. Normal anatomy was found in 245 patients (71%). Anatomical variations were as follows: Type 1: 11%, Type 2: 17%, Type 3: 0.8%, Type 4: 0%. Angle variation less than 50 was observed in 4.5%. The risk of selective clamping failure was 34%. Extension of clamping was observed in 16%, while incomplete clamping was observed in 17.8%. Failure of right Glissonian pedicle clamping was predictable in 34% of cases while 71% of patients presented normal portal vein anatomy. Clin. Anat. 32:328-336, 2019.

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Hepatic portal vein branching patterns according to different liver assessment methods and classifications of branching type

Tutkuviene,

Navakauskaite,

Narutyte

et al. 2024

Annals of Anatomy - Anatomischer Anzeiger

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Pattern of branching of the left portal vein: an anatomo-radiological study

Abstract: Knowledge of the pattern of branching of the left portal vein is important for surgical purpose. CT angiography is a valuable preoperative examination to visualize the branching pattern of adult patients.

Cited by 6 publications

References 35 publications

Segmental branching pattern of the left portal vein: Anatomical characteristics and clinical implications

Segmental branching pattern of the left portal vein: Anatomical characteristics and clinical implications

Portal vein variants associated with right hepatectomy: An analysis of abdominal CT angiography with 3D reconstruction

Hepatic portal vein branching patterns according to different liver assessment methods and classifications of branching type

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