Definition and characterization of the descending branch of the left colic artery

Tachikawa, Yuichi; Nozawa, Hiroaki; Otani, Kensuke; Emoto, Shigenobu; Sonoda, Hirofumi; Mori, Ken; Ishihara, Soichiro

doi:10.1007/s00261-021-02969-1

Cited by 1 publication

(6 citation statements)

References 12 publications

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“…Recently, we defined the descending branch of the LCA, and demonstrated that it can be discriminated from the SAs that branch from the LCA and perfuse the sigmoid colon. 13 In that study, we also found a various number of branches of the LCA (range: 0-5) by investigating 360 patients with colorectal disease. 13 As the number of branches from an artery theoretically depends on its segment length, we hypothesized that the number of branches of the LCA between the IMA and marginal artery reflects the length of the LCA.…”

Section: Introductionmentioning

confidence: 77%

“…It can give branches that drain downward to the marginal artery of the left‐sided colon. Recently, we defined the descending branch of the LCA, and demonstrated that it can be discriminated from the SAs that branch from the LCA and perfuse the sigmoid colon 13 . In that study, we also found a various number of branches of the LCA (range: 0–5) by investigating 360 patients with colorectal disease 13 .…”

Section: Introductionmentioning

confidence: 84%

“…Virtual enema images were created from the volumetric CT data based on 0.5‐mm slice images in both the supine and prone positions 14 . In addition to routine two‐dimensional (2D) arterial phase axial images of 0.5–5‐mm slices, three‐dimensional (3D) images of abdominal angiography were also reconstructed by image processing analysis using a 3D volume‐rendering technique as reported previously 13 …”

Section: Methodsmentioning

confidence: 99%

“…S2). 13 In the type 3 branching pattern, the first SA was not counted as a branch of the LCA. In the type 4 branching pattern of the IMA, the count is zero because of no LCA.…”

Section: Methodsmentioning

confidence: 99%

“…14 In addition to routine two-dimensional (2D) arterial phase axial images of 0.5-5-mm slices, three-dimensional (3D) images of abdominal angiography were also reconstructed by image processing analysis using a 3D volume-rendering technique as reported previously. 13 PDM was preoperatively diagnosed based on malposition of the descending and sigmoid colon toward the midline or right side as revealed by CTC or barium enema, and with the aid of 3D-CT angiography in some cases. A representative case is presented in Figure S1.…”

Section: Imaging Studies Anatomical Diagnoses and Diagnosis Of Persis...mentioning

confidence: 99%

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Anatomical features of inferior mesenteric and left colic arteries and surgery in colorectal cancer patients with persistent descending mesocolon

Nozawa

Okamoto

Kawai

et al. 2022

ANZ Journal of Surgery

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Background: Persistent descending mesocolon (PDM) is a fetal abnormality in which the left-sided colon is not fused to the retroperitoneum, and it is often accompanied by the adhesion between the mesocolon and small bowel mesentery. Due to its rarity, whether PDM exhibits anatomical characteristics of the inferior mesenteric artery (IMA) and left colic artery (LCA), and how the anomaly affects laparoscopic surgery are largely unknown. We investigated the branches of these arteries and outcomes of patients who underwent laparoscopic surgery. Methods: Based on computed tomography (CT) and three-dimensional CT angiography, branching patterns of the IMA, LCA and branches originating from the LCA were analysed in 954 patients with left-sided colon or rectal cancer. PDM was diagnosed by preoperative CT colonography, and confirmed at time of surgery. The anatomical features of the vessels and short-term outcomes of laparoscopic surgery were compared between patient groups stratified by PDM. Results: Twelve patients (1.3%) were diagnosed with PDM. No branching pattern of the IMA specific to PDM was noted. On the other hand, patients with PDM had fewer branches (mean: 1.0) from the LCA than those without PDM (mean: 1.8, p = 0.009). In patients undergoing laparoscopic surgery, outcomes such as operative time, intraoperative blood loss, and number of harvested nodes were comparable between the two patient groups. Conclusion: Few branches of the LCA characterize PDM. PDM does not complicate laparoscopic surgery of the left-sided colon and rectum. However, the above anatomical feature increases the risk of poor colonic perfusion when dividing the LCA.

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Section: Introductionmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 84%

Section: Methodsmentioning

confidence: 99%

“…S2). 13 In the type 3 branching pattern, the first SA was not counted as a branch of the LCA. In the type 4 branching pattern of the IMA, the count is zero because of no LCA.…”

Section: Methodsmentioning

confidence: 99%

Section: Imaging Studies Anatomical Diagnoses and Diagnosis Of Persis...mentioning

confidence: 99%

See 3 more Smart Citations

Anatomical features of inferior mesenteric and left colic arteries and surgery in colorectal cancer patients with persistent descending mesocolon

Nozawa

Okamoto

Kawai

et al. 2022

ANZ Journal of Surgery

Self Cite

View full text Add to dashboard Cite

show abstract

Definition and characterization of the descending branch of the left colic artery

Cited by 1 publication

References 12 publications

Anatomical features of inferior mesenteric and left colic arteries and surgery in colorectal cancer patients with persistent descending mesocolon

Anatomical features of inferior mesenteric and left colic arteries and surgery in colorectal cancer patients with persistent descending mesocolon

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