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Assessment of agreement and time in therapeutic range of capillary versus venous international normalised ratio in frail elderly people in a nursing home
Author(s) -
Sikirdji Chloé,
Costa David,
Alonso Sandrine,
Clape JeanFrançois,
Amouyal Michel,
Waziere Benoît,
FabbroPeray Pascale
Publication year - 2019
Publication title -
internal medicine journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.596
H-Index - 70
eISSN - 1445-5994
pISSN - 1444-0903
DOI - 10.1111/imj.14626
Subject(s) - medicine , concordance , venipuncture , prospective cohort study , nursing homes , emergency medicine , intensive care medicine , surgery , nursing
Vitamin K antagonists are widely used, yet have a slim therapeutic margin and high iatrogenicity. Patients are monitored through international normalised ratio (INR) by venipuncture, but coagulometers could measure INR by capillary puncture. This prospective study evaluated the clinical concordance of capillary INR versus venous INR in 31 nursing home patients. Concordance was good and mean time in therapeutic range (TTR) markedly increased. Capillary INR is thus reliable, could improve TTR and decrease iatrogenicity.