title: [The popliteal artery entrapment syndrome in an older patient. Its diagnosis after unsuccessful laser-assisted percutaneous transluminal angioplasty].
abstract: METHODS
  A 52-year-old patient complained of progressively increasing pain in his left leg when walking. The pain-free walking distance was 50-100 m. He was smoking about 20 cigarettes daily. No pulses were palpable in the left leg below the inguinal fossa. Recapillarisation time was normal in both legs and there were no trophic changes.
  
  
  METHODS
  The Doppler perfusion pressure values were up to 40 mm Hg less in the left than the right leg. Ankle oscillography record showed a definite stenosis curve on the left. Digital subtraction angiography of the left leg showed a short occlusion of the popliteal artery with many collaterals and atypical medical deviation of the artery. The findings were interpreted as indicating peripheral arterial vascular disease.
  
  
  METHODS
  Laser-assisted percutaneous transluminal angioplasty with balloon dilatation merely achieved a narrow lumen which again closed on plantar flexion of the left foot. The reversible occlusion suggested popliteal artery entrapment. At operation the popliteal artery coursed atypically over the dorsal medial aspect of the medial head of the gastrocnemius muscle. The arterial segment in the stenotic area was replaced by an autologous venous graft and the gastrocnemius muscle fixed laterally. The patients no longer experienced any impairment on walking and repeat angiography showed unimpeded flow through the graft even on plantar flexion.
  
  
  CONCLUSIONS
  Popliteal artery entrapment is rare in the elderly and may be overlooked without provocation test and complete visualisation of the leg and pelvic arteries.
authors.affiliation: Abteilung für Thorax-, Herz- und Gefässchirurgie, Universität Tübingen.
authors.forename: D H
authors.initials: DH
authors.lastname: Bail
authors.forename: W
authors.initials: W
authors.lastname: Schneider
authors.forename: S
authors.initials: S
authors.lastname: Duda
mesh_terms: D015901:Angiography, Digital Subtraction; D017222:Angioplasty, Balloon, Laser-Assisted; D001157:Arterial Occlusive Diseases / Q000175:diagnosis; D002908:Chronic Disease; D003251:Constriction, Pathologic / Q000175:diagnosis / Q000628:therapy; D003937:Diagnosis, Differential; D006801:Humans; D007383:Intermittent Claudication / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D016491:Peripheral Vascular Diseases / Q000175:diagnosis / Q000628:therapy; D011150:Popliteal Artery / Q000000981:diagnostic imaging / Q000601:surgery; D013577:Syndrome
vernacular_title: Das Entrapment-Syndrom der Arteria poplitea bei einem älteren Patienten. Diagnose nach erfolgloser laserassistierter perkutaner transluminaler Angioplastie.