Iron Deficiency in COPD Associates with Increased Pulmonary Artery Pressure Estimated by Echocardiography
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Iron Deficiency in COPD Associates with Increased Pulmonary Artery Pressure Estimated by Echocardiography. / Plesner, Louis L; Schoos, Mikkel M; Dalsgaard, Morten; Goetze, Jens P; Kjøller, Erik; Vestbo, Jørgen; Iversen, Kasper.
I: Heart Lung and Circulation, Bind 26, Nr. 1, 01.2017, s. 101-104.Publikation: Bidrag til tidsskrift › Letter › Forskning › fagfællebedømt
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TY - JOUR
T1 - Iron Deficiency in COPD Associates with Increased Pulmonary Artery Pressure Estimated by Echocardiography
AU - Plesner, Louis L
AU - Schoos, Mikkel M
AU - Dalsgaard, Morten
AU - Goetze, Jens P
AU - Kjøller, Erik
AU - Vestbo, Jørgen
AU - Iversen, Kasper
N1 - Copyright © 2016 Australian and New Zealand Society of Cardiac and Thoracic Surgeons (ANZSCTS) and the Cardiac Society of Australia and New Zealand (CSANZ). Published by Elsevier B.V. All rights reserved.
PY - 2017/1
Y1 - 2017/1
N2 - OBJECTIVES: Iron deficiency (ID) might augment chronic pulmonary hypertension in chronic obstructive pulmonary disease (COPD). This observational study investigates the association between ID and systolic pulmonary artery pressure estimated by echocardiography in non-anaemic COPD outpatients.METHODS: Non-anaemic COPD patients (GOLD II-IV) with no history of cardiovascular disease were recruited from outpatient clinics. Iron deficiency was defined as ferritin<100μg/L. Pulmonary artery pressure was estimated from the tricuspid regurgitation maximum velocity (TR Vmax). Tricuspid regurgitation Vmax indicative of pulmonary hypertension was considered present for values ≥ 2.9 m/s.RESULTS: In a total of 75 included patients, 31 (41%) had ID. These patients had a significantly higher TR Vmax (3.02 vs. 2.77 m/s, p=0.01) and lower diffusion capacity of carbon monoxide (40% vs. 50% of predicted, p<0.01), though similar in age, sex, pack years, FEV1 and high-sensitive CRP (p>0.05). Ferritin inversely correlated with TR Vmax in ID patients (-0.37 (p=0.04)). The prevalence of TR Vmax ≥ 2.9 m/s was twice as high in patients with ID (58% vs. 29%) and odds ratio of pulmonary hypertension in ID (compared to no ID) was 3.3 (95% CI 1.3-8.6, p=0.015).CONCLUSION: Iron deficiency in non-anaemic COPD patients was associated with a modest increase in systolic pulmonary artery pressure and limitation of diffusion capacity.
AB - OBJECTIVES: Iron deficiency (ID) might augment chronic pulmonary hypertension in chronic obstructive pulmonary disease (COPD). This observational study investigates the association between ID and systolic pulmonary artery pressure estimated by echocardiography in non-anaemic COPD outpatients.METHODS: Non-anaemic COPD patients (GOLD II-IV) with no history of cardiovascular disease were recruited from outpatient clinics. Iron deficiency was defined as ferritin<100μg/L. Pulmonary artery pressure was estimated from the tricuspid regurgitation maximum velocity (TR Vmax). Tricuspid regurgitation Vmax indicative of pulmonary hypertension was considered present for values ≥ 2.9 m/s.RESULTS: In a total of 75 included patients, 31 (41%) had ID. These patients had a significantly higher TR Vmax (3.02 vs. 2.77 m/s, p=0.01) and lower diffusion capacity of carbon monoxide (40% vs. 50% of predicted, p<0.01), though similar in age, sex, pack years, FEV1 and high-sensitive CRP (p>0.05). Ferritin inversely correlated with TR Vmax in ID patients (-0.37 (p=0.04)). The prevalence of TR Vmax ≥ 2.9 m/s was twice as high in patients with ID (58% vs. 29%) and odds ratio of pulmonary hypertension in ID (compared to no ID) was 3.3 (95% CI 1.3-8.6, p=0.015).CONCLUSION: Iron deficiency in non-anaemic COPD patients was associated with a modest increase in systolic pulmonary artery pressure and limitation of diffusion capacity.
KW - Aged
KW - Blood Pressure
KW - Echocardiography
KW - Female
KW - Humans
KW - Hypertension, Pulmonary
KW - Iron
KW - Male
KW - Middle Aged
KW - Pulmonary Artery
KW - Pulmonary Disease, Chronic Obstructive
KW - Journal Article
U2 - 10.1016/j.hlc.2016.04.020
DO - 10.1016/j.hlc.2016.04.020
M3 - Letter
C2 - 27372430
VL - 26
SP - 101
EP - 104
JO - Heart Lung and Circulation
JF - Heart Lung and Circulation
SN - 1443-9506
IS - 1
ER -
ID: 185687355