Department   School of Medicine(Tokyo Women's Medical University Hospital), School of Medicine
   Position   Endowed Associate Professor
Article types Case report
Language English
Peer review Peer reviewed
Title Unusual "ratchet syndrome": spontaneous lead retraction after a generator exchange.
Journal Formal name:Heart and Vessels
Abbreviation:Heart Vessels
ISSN code:09108327/16152573
Domestic / ForeginDomestic
Publisher Springer Japan
Volume, Issue, Page 29(4),pp.550-553
Author and coauthor EJIMA Koichiro†*, SHODA Morio, YASHIRO Bun, YOSHIDA Kentaro, NUKI Toshiaki, KATO Ken, MANAKA Tetsuyuki, HAGIWARA Nobuhisa
Authorship Lead author,Corresponding author
Publication date 2014/07
Summary A 72-year-old female with idiopathic dilated cardiomyopathy underwent a generator exchange for a cardiac resynchronization therapy defibrillator with a full-pocket capsulectomy. The lead position after the operation was identical to that before the operation on the chest X-ray. After 4 months, a subacute exacerbation of her heart failure was caused by cardiac resynchronization therapy failure due to a dislodgement of the left ventricular lead. An aggressive adhesiotomy of the connective tissue around the leads made it possible for the lead to retract by a ratchet-like movement through the suture sleeve, so-called "ratchet syndrome", after the generator exchange.
DOI 10.1007/s00380-013-0392-4
PMID 23846318