Subtotal Colectomy

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Features

- Amount on colon resected depends on site of lesion & blood supply

- Colon is supplied by superior mesenteric a. (SMA), inferior mesenteric a. (IMA) & bracnhes on internal iliac a.

- SMA: middle colic a., right colic a., ileocolic a.

- IMA: left colic a., sigmoid a., sup. rectal a.

- Internal Iliac: inferior & middle rectal a.

Indications

- Bowel Ca

Procedures

- Right Hemicolectomy

- Left Hemicolectomy

- Transverse Hemicolectomy

- Sigmoid Colectomy (High Anterior Resection)

- Low Anterior Resection

- Ultra Low Anterior Resection

- Abdominopelvic Resection

Right Hemicolectomy

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- Caecum & descending colon removed

- +/- terminal ileum

- Area supplied by right colic & iliecolic a.

Left Hemicolectomy

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- Descending colon

- Area supplied by left colic a.

Transverse Hemicolectomy

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- Transverse colon

- Area supplied by middle colic a.

Sigmoid Colectomy (High Anterior Resection)

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- Sigmoid colon +/- proximal rectum

Low Anterior Resection

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- Sigmoid colon & proximal 2/3 of rectum

Ultra Low Anterior Resection

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- Sigmoid colon & rectum

Abdominopelvic (AP) Resection

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- Rectum & anus

- Leaves permanent stoma (colostomy)