CaseStudy

Glue Embolization of Lower Limb

Case Study 2

Procedure/Surgery Name: Endovascular Glue Embolization of lower limb/leg Arterio-Venous Malformation (AVM)

Doctors: Dr. Bhavesh Arun Popat, Dr. Karan M Anandpara

Pre-Op Details & Diagnosis

A 29 year old female

  • Progressively increasing painful swelling on anterior aspect of right distal leg of 4 months duration
  • No skin changes
  • Minimal right distal leg edema
  • Tender on palpation +
  • Distal pulses (ATA, DPA and PTA) palpable +

Investigation

  • Local Ultrasound and Doppler – echogenic ill defined soft tissue area with few serpiginous vascular channels within s/o vascular malformation
  • MRI – confirmed the findings of USG; arterial feeders with intralesional nidus noted s/o likely arterio-venous malformation (AVM)

Angiography Findings:

  • Abnormal leash of vessels
  • Internal nidus
  • Atleast 4 arterial feeders from anterior tibial artery
  • Early draining vein – washout from accompanying anterior tibial veins
  • Distal main anterior tibial artery and DPA shows slow, but antegrade adequate distal flow

Diagnosis

Complex arterio-veneous malformation (avm) of lower limb/leg with multiple arterial feeders from anterior tibial artery.

Treatment Plan

  • Staged; combined ultrasound and fluoroscopic percutaneous and sos endovascular glue embolisation
  • Followed by surgical excision

Procedure Details

  • Percutaneous USG guided access taken
  • Catheter in the right popliteal artery via left CFA access
  • Endovascular contrast injection to localize the nidus and to monitor residual lesion
  • Following this, multiple percutaneous access taken to target various components of the AVM
  • Manual hand compression given to prevent inadvertent reflux into the draining vein
  • Endovascular embolization attempted, but ultimately was not done due to high probability of reflux into the main anterior tibial artery due to intra-nidus vascular communication. Therefore, percutaneous embolization done with Glue

Post Procedure DSA

  • Near complete exclusion of the AVM
  • Glue cast visible

Conclusion

  • Essential to classify vascular malformations appropriately – Venous, lymphatic, AVM, combined vascular malformations
  • Set ‘realistic expectations’
  • Multiple procedures
  • Difficult to treat completely
  • Team Work