The left flank collateral circulation is quite important since 86.9% occurs there including the coronary vein, splenorenal and/or pancreaticoduodenal vein.

• 86.；9%25侧枝循环发生在包括冠状静脉，脾肾及／或胰十二指肠在内的左腹侧枝，深具重要性。