Jaimeson classified patients with portal vein thrombosis (PVT) based on the distribution of venous thrombosis. The type of thrombosis is important for determining appropriate management. The author is from Addenbrookes Hospital in Cambridge, England.
Patient selection: portal vein thrombosis
Venous involvement:
(1) portal vein trunk
(2) superior mesenteric vein
(3) splenic vein
Additional parameters:
(1) degree of occlusion
(2) collaterals
Vein Affected
Additional Information
Type
portal vein trunk
partial occlusion
1
portal vein trunk
complete occlusion
1
portal vein trunk and proximal superior mesenteric vein
patent veins to mesentery
2
diffuse in splanchnic venous system
large collaterals
3
diffuse in splanchnic venous system
fine collaterals
4
where:
• There is no category for proximal involvement of the splenic vein (comparable to Type 2).
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