MDCalc

Michigan Risk Score for PICC-Related Thrombosis

Predicts risk of DVT in patients with peripherally inserted central catheter (PICC).

This calculator is not yet externally validated and should therefore be used with caution.

Use in patients ≥18 years old admitted to a medical service (i.e., not surgical). Do not use in pregnant patients.

Another central venous catheter present
At the time of index PICC placement
WBC >12.0 × 10⁹/µL
At the time of index PICC placement
Number of PICC lumens
History of VTE
Active cancer
On chemotherapy or admitted for cancer-related reasons

Result:

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Advice
  • Carefully consider the risks and benefits of using a PICC, especially if the risk of thrombosis is high.
  • Consider alternative devices (e.g. central venous catheters, ports, tunneled catheters) that can be placed in larger veins, if appropriate.