A pilot study of forearm microvascular impairment and pain while using a telephone.
Ischemia
Peripheral artery disease
Telephone, provocative maneuvers
Journal
Microvascular research
ISSN: 1095-9319
Titre abrégé: Microvasc Res
Pays: United States
ID NLM: 0165035
Informations de publication
Date de publication:
05 2020
05 2020
Historique:
received:
30
09
2019
revised:
25
11
2019
accepted:
26
11
2019
pubmed:
4
12
2019
medline:
21
7
2020
entrez:
3
12
2019
Statut:
ppublish
Résumé
To determine if using a telephone can induce forearm pain and ischemia. Prospective case-control trial. Vascular laboratory in the university hospital in Angers between September 2018 and March 2019. Fifteen apparently healthy subjects (controls) and 32 patients with suspected thoracic outlet syndrome (TOS) of vascular or non-vascular origin. Hand-holding a cellular phone to answer a call from investigators. Presence of forearm fatigue or pain (primary outcome), ability to hold the phone with each hand for 1 min (secondary outcome 1) and decrease in forearm transcutaneous oxygen pressure DROP index indicating forearm ischemia (secondary outcome 2). A DROP < -15 mm Hg defined ischemia. Answering a phone call resulted in 25(78%) patients with forearm fatigue or pain and in 18 (56%) cases in the inability to hold the phone for 1 min, on one or both arms in patients with suspected TOS, but never occurred in healthy volunteers (p < .05 and p < .001). The presence of ischemia was observed in one or both arms in 10 (31%) patients with proved TOS and was always associated to phone-induced pain. Three (20%) of the controls had phone-induced ischemia. All had asymptomatic TOS and remained asymptomatic during the phone test (p = .42 from suspected-TOS patients). The phone conversation resulted in pain in many patients with suspected TOS. Transcutaneous oximetry can document the underlying ischemia. Forearm phone-call-induced pain may be indicative of TOS provided that no earplug or headset is used. Trial registrationClinicalTrials.govNCT03355274.
Identifiants
pubmed: 31790665
pii: S0026-2862(19)30260-2
doi: 10.1016/j.mvr.2019.103963
pii:
doi:
Banques de données
ClinicalTrials.gov
['NCT03355274']
Types de publication
Controlled Clinical Trial
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
103963Informations de copyright
Copyright © 2019 Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest No support from any organization for the submitted work; no financial relationships with any organizations that might have an interest in the submitted work in the previous three years; no other relationships or activities that could appear to have influenced the submitted work. Specifically authors have no interest or investments in companies selling earplugs, headsets or greeting postcards.