PubMed Health⌕ Search
Home/Archive/PubMed

PubMed · 7479172

Pacemaker and defibrillator lead entrapment: case studies.

J E Magney·J A Parsons·D M Flynn·D W Hunter
View original source ↗Export metadata ↓

Abstract

Cadavers and cineradiographic analysis have been used to document the effects of the medial subclavicular musculotendinous complex (MSMC) upon lead function. Four cadavers with pacemakers were dissected and photographed to demonstrate the course a lead takes as it passes through the costoclavicular region. One lead had been placed into the cephalic vein. In the other three cadavers, leads placed by currently accepted techniques of subclavian venipuncture were all found to pass through the soft tissues of the subclavicular region before entering the venous system. Cineradiographic results from a patient with a defibrillator, taken before and after replacement of a broken lead, show the effect of clavicular motion on a lead that passes through the MSMC. Furthermore, cineradiography makes it possible to identify the point where the lead entered the vein, and whether or not it escaped being caught up in the soft tissues of the MSMC.

Explore related subjects

CadaverCatheterization, Central VenousCineradiographyClavicleDefibrillators, ImplantableDissectionEquipment FailureFasciaFemaleHumansMaleMuscle, SkeletalPacemaker, ArtificialPectoralis MusclesPuncturesRadiography, InterventionalRibsSubclavian VeinTendonsCase ReportsJournal ArticleResearch Support, Non-U.S. Gov't

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

J E Magney, J A Parsons, D M Flynn, D W Hunter. 1995. Pacemaker and defibrillator lead entrapment: case studies.. https://doi.org/10.1111/j.1540-8159.1995.tb06737.x

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed2007

A population-based study of cancer incidence in solid organ transplants from donors at various risk of neoplasia.

A population-based cohort study of recipients of organs from donors with a recognized history or active cancer has been conducted by linking the Italian National Registry of Transplanted Patients and the National Registry of Donors with Neoplasia Risk. Between 2002 and 2004, 8,198 solid organ transplants have been performed in Italy, 108 of them with organs from 59 cadaveric donors with various risk of neoplasia. There were two reported cases of nonmelanoma skin cancer during the follow up of the transplanted patients, which lasted 27.6+/-11.3 months (234 patient-years). In our study, recipients of organs from donors with various degree of neoplasia risk are exposed to a low risk of cancer transmission.

Cadaver↗
PubMed2007

[Primary stability of the capsule-labrum complex after reconstruction with the Mitek Bioknotless anchor system in human cadaver models].

BACKGROUND: This study examines the postoperative stability of the Mitek Bioknotless anchor system with biomechanical draw-out pulling in human cadaver shoulders. METHOD: With simulation of anterior shoulder dislocation a test group (n=10, Ø 45 years) was tested against a native group (n=8, Ø 47 years). All shoulders were dissected up to the passive stabilizers. In the test group an artificial Bankart lesion was created and repaired with three Mitek Bioknotless anchors. The humeri of both groups were fixed in 60 degrees glenohumeral abduction and 90 degrees external rotation and then dislocated in a ventral direction. For evaluation purposes the ultimate draw-out strength, mode of failure, translation of humeral head, capsular slope, and bone density in the test group were measured. RESULTS: In the test group the ultimate strength was a median of 937 N (min. 554 N, max. 1,294 N) with 28 bony anchor dislocations, 1 suture rupture, and 1 capsular rupture, and in the native group with 6 Bankart and 2 HAGL lesions it was 1,214 N (708 N, 1,471 N). The bone density showed a positive correlation to the draw-out strength regarding cortical density and total density. CONCLUSION: Regarding the high draw-out strength the Mitek Bioknotless anchor system provides enough stability for early functional treatment.

Cadaver↗