title: Dual compression is not an uncommon type of iliac vein compression syndrome.
abstract: Typical iliac vein compression syndrome (IVCS) is characterized by compression of left common iliac vein (LCIV) by the overlying right common iliac artery (RCIA). We described an underestimated type of IVCS with dual compression by right and left common iliac arteries (LCIA) simultaneously. Thirty-one patients with IVCS were retrospectively included. All patients received trans-catheter venography and computed tomography (CT) examinations for diagnosing and evaluating IVCS. Late venography and reconstructed CT were used for evaluating the anatomical relationship among LCIV, RCIA and LCIA. Imaging manifestations as well as demographic data were collected and evaluated by two experienced radiologists. Sole and dual compression were found in 32.3% (n = 10) and 67.7% (n = 21) of 31 patients respectively. No statistical differences existed between them in terms of age, gender, LCIV diameter at the maximum compression point, pressure gradient across stenosis, and the percentage of compression level. On CT and venography, sole compression was commonly presented with a longitudinal compression at the orifice of LCIV while dual compression was usually presented as two types: one had a lengthy stenosis along the upper side of LCIV and the other was manifested by a longitudinal compression near to the orifice of external iliac vein. The presence of dual compression seemed significantly correlated with the tortuous LCIA (p = 0.006). Left common iliac vein can be presented by dual compression. This type of compression has typical manifestations on late venography and CT.
authors.affiliation: Department of Vascular Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, 210008, China.|Department of Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, 210006, China.
authors.forename: Wan-Yin
authors.initials: WY
authors.lastname: Shi
authors.affiliation: Department of Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, 210006, China.
authors.forename: Jian-Ping
authors.initials: JP
authors.lastname: Gu
authors.affiliation: Department of Vascular Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, 210008, China. lcj_nj@163.com.
authors.forename: Chang-Jian
authors.initials: CJ
authors.lastname: Liu
authors.affiliation: Department of Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, 210006, China.
authors.forename: Wen-Sheng
authors.initials: WS
authors.lastname: Lou
authors.affiliation: Department of Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, 210006, China.
authors.forename: Xu
authors.initials: X
authors.lastname: He
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015901:Angiography, Digital Subtraction; D000072226:Computed Tomography Angiography; D003251:Constriction, Pathologic; D057510:Endovascular Procedures / Q000295:instrumentation; D005260:Female; D006801:Humans; D007083:Iliac Artery / Q000000981:diagnostic imaging*; D007084:Iliac Vein / Q000000981:diagnostic imaging*; D008297:Male; D062108:May-Thurner Syndrome / Q000000981:diagnostic imaging* / Q000628:therapy; D008875:Middle Aged; D010690:Phlebography / Q000379:methods*; D011237:Predictive Value of Tests; D011474:Prosthesis Design; D011857:Radiographic Image Interpretation, Computer-Assisted; D012189:Retrospective Studies; D015607:Stents; D055815:Young Adult
keywords: Diagnosis; Dual compression; Iliac vein compression syndrome