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Popliteal traumatic arteriovenous fistula
Nenad S Ilijevski1, Dragoslav D Nenezić, Dragan Sagić
1Vascular Surgery Clinic, Dedinje Cardiovascular Institute, Belgrade, Serbia and Montenegro. Ilijevskidr@yubc.net
Vascular
|November 18, 2005
Summary
Popliteal arteriovenous fistula (AVF) diagnosis can be challenging. Imaging may misdirect surgeons, leading to unnecessary dissection, as seen in a case involving minor genicular vessels.
Area of Science:
- Vascular Surgery
- Trauma Medicine
- Diagnostic Imaging
Background:
- Popliteal trauma poses significant risks, including potential limb amputation and cardiac complications from arteriovenous fistulas (AVFs).
- Accurate diagnosis of popliteal AVFs is crucial for effective management and preventing severe outcomes.
- Clinical findings like thrill and bruit, alongside imaging, aid diagnosis.
Observation:
- A case of popliteal traumatic AVF with a pseudoaneurysm (PSA) is presented.
- Preoperative imaging findings (duplex ultrasonography and angiography) were inconsistent with surgical findings.
- The AVF and PSA were located in minor vessels (genicular artery and vein), not major popliteal vessels.
Findings:
- Diagnostic imaging inconsistencies led to unnecessary extensive dissection of major popliteal artery and vein.
- The actual arteriovenous fistula and pseudoaneurysm were identified in smaller genicular vessels during surgery.
- This discrepancy highlights potential limitations in imaging interpretation for complex popliteal vascular injuries.
Implications:
- Accurate localization of popliteal vascular injuries is crucial to avoid iatrogenic complications.
- Surgical planning for popliteal AVFs and PSAs requires careful correlation of imaging with intraoperative findings.
- This case underscores the importance of considering injury to smaller, adjacent vessels in popliteal trauma management.