title: Short-term results of transcatheter arterial embolization for abnormal neovessels in patients with adhesive capsulitis: a pilot study.
abstract: BACKGROUND
  Neovessels and accompanying nerves are possible sources of pain. We postulated that transcatheter arterial embolization of abnormal neovessels would relieve pain and symptoms in patients with adhesive capsulitis.
  
  
  METHODS
  Adhesive capsulitis was treated by transcatheter arterial embolization in 7 patients. Adverse events, changes in visual analog scale scores for night pain and overall shoulder pain, and changes in range of motion and American Shoulder and Elbow Surgeons scores were assessed at 1 week and at 1, 3, and 6 months after the procedure.
  
  
  RESULTS
  Abnormal neovessels were identified at the rotator interval in all patients. No major or minor adverse events were associated with the procedures. Transcatheter arterial embolization rapidly decreased nighttime pain scores from 67 ± 14 mm to 27 ± 14 mm at 1 week after the procedure, with further improvement at 1 and 6 months (6 ± 8 mm and 2 ± 5 mm, respectively). The American Shoulder and Elbow Surgeons score significantly improved from 17.8 ± 4.5 to 39.8 ± 12.0, 64.3 ± 13.9, and 76.2 ± 4.4 at 1, 3, and 6 months, respectively.
  
  
  CONCLUSIONS
  All patients with adhesive capsulitis had abnormal neovessels at the rotator interval. Transcatheter arterial embolization was feasible, relieved unrelenting pain, and restored shoulder function.
authors.affiliation: Department of Orthopedic Surgery, Edogawa Hospital, Tokyo, Japan. Electronic address: how_lowlow@yahoo.co.jp.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Okuno
authors.affiliation: Department of Radiology, School of Medicine, Keio University, Tokyo, Japan.
authors.forename: Sota
authors.initials: S
authors.lastname: Oguro
authors.affiliation: Institute for Integrated Sports Medicine, School of Medicine, Keio University, Tokyo, Japan.
authors.forename: Wataru
authors.initials: W
authors.lastname: Iwamoto
authors.affiliation: Department of Orthopedic Surgery, School of Medicine, Keio University, Tokyo, Japan.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Miyamoto
authors.affiliation: Department of Orthopaedic Surgery, Toho University (Ohashi), Tokyo, Japan.
authors.forename: Hiroyasu
authors.initials: H
authors.lastname: Ikegami
authors.affiliation: Department of Orthopedic Surgery, School of Medicine, Keio University, Tokyo, Japan.
authors.forename: Noboru
authors.initials: N
authors.lastname: Matsumura
mesh_terms: D000328:Adult; D000368:Aged; D002062:Bursitis / Q000150:complications*; D002404:Catheterization; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009389:Neovascularization, Pathologic / Q000209:etiology / Q000628:therapy*; D010865:Pilot Projects; D011446:Prospective Studies; D016059:Range of Motion, Articular; D020127:Recovery of Function; D012785:Shoulder Joint / Q000098:blood supply; D020069:Shoulder Pain / Q000209:etiology / Q000628:therapy*
keywords: Shoulder pain; abnormal vessels; adhesive capsulitis; embolization