Endothelial function measured by peripheral arterial tonometry in patients with chronic myeloid leukemia on tyrosine kinase inhibitor therapy: a pilot study

Abstract Background Arterial occlusive events are an emerging problem in patients with chronic myeloid leukemia (CML) receiving tyrosine kinase inhibitor (TKI) therapy. Endothelial cell damage is thought to play an important role in the development of vascular events. Measurement of the peripheral v...

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Main Authors: Tomohiro Kaneko, Sakiko Miyazaki, Azusa Kurita, Ryoko Morimoto, Shun Tsuchiya, Naoki Watanabe, Tomoiku Takaku, Norio Komatsu, Tohru Minamino
Format: Article
Language:English
Published: BMC 2023-02-01
Series:Cardio-Oncology
Subjects:
Online Access:https://doi.org/10.1186/s40959-023-00164-3
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author Tomohiro Kaneko
Sakiko Miyazaki
Azusa Kurita
Ryoko Morimoto
Shun Tsuchiya
Naoki Watanabe
Tomoiku Takaku
Norio Komatsu
Tohru Minamino
author_facet Tomohiro Kaneko
Sakiko Miyazaki
Azusa Kurita
Ryoko Morimoto
Shun Tsuchiya
Naoki Watanabe
Tomoiku Takaku
Norio Komatsu
Tohru Minamino
author_sort Tomohiro Kaneko
collection DOAJ
description Abstract Background Arterial occlusive events are an emerging problem in patients with chronic myeloid leukemia (CML) receiving tyrosine kinase inhibitor (TKI) therapy. Endothelial cell damage is thought to play an important role in the development of vascular events. Measurement of the peripheral vasodilator response by peripheral arterial tonometry (PAT) has reportedly been useful in the non-invasive assessment of endothelial dysfunction. To date, no studies have assessed endothelial function using PAT in patients with CML receiving TKIs. Method We measured the reactive hyperemia index (RHI) using PAT in young patients with CML (men aged ≤ 55 years and women aged ≤ 65 years) receiving TKIs. Results Thirty patients with CML were examined (mean age, 43.5 ± 9.8 years; men, 57%). The median RHI was 1.81. Among these patients, 16.7% and 83.3% were taking imatinib and second- or third-generation TKIs, respectively. There were no differences in the baseline characteristics between the low RHI (< 1.67, n = 10), borderline RHI (≥ 1.67 and < 2.10, n = 14), and normal RHI (≥ 2.10, n = 6) groups. Serum uric acid (UA) levels and the RHI were significantly negatively correlated (r = -0.40, p = 0.029). Conclusion One-third of young patients with CML receiving TKI therapy were classified as having a low RHI. The RHI was negatively correlated with serum UA level. Larger prospective studies are necessary to examine whether the RHI predicts cardiovascular events in such patients.
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spelling doaj.art-d192425321a6433db062caf6100091802023-03-22T12:31:30ZengBMCCardio-Oncology2057-38042023-02-01911810.1186/s40959-023-00164-3Endothelial function measured by peripheral arterial tonometry in patients with chronic myeloid leukemia on tyrosine kinase inhibitor therapy: a pilot studyTomohiro Kaneko0Sakiko Miyazaki1Azusa Kurita2Ryoko Morimoto3Shun Tsuchiya4Naoki Watanabe5Tomoiku Takaku6Norio Komatsu7Tohru Minamino8Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of MedicineDepartment of Cardiovascular Biology and Medicine, Juntendo University Graduate School of MedicineDepartment of Cardiovascular Biology and Medicine, Juntendo University Graduate School of MedicineDepartment of Cardiovascular Biology and Medicine, Juntendo University Graduate School of MedicineDepartment of Hematology, Juntendo University Graduate School of MedicineDepartment of Hematology, Juntendo University Graduate School of MedicineDepartment of Hematology, Juntendo University Graduate School of MedicineDepartment of Hematology, Juntendo University Graduate School of MedicineDepartment of Cardiovascular Biology and Medicine, Juntendo University Graduate School of MedicineAbstract Background Arterial occlusive events are an emerging problem in patients with chronic myeloid leukemia (CML) receiving tyrosine kinase inhibitor (TKI) therapy. Endothelial cell damage is thought to play an important role in the development of vascular events. Measurement of the peripheral vasodilator response by peripheral arterial tonometry (PAT) has reportedly been useful in the non-invasive assessment of endothelial dysfunction. To date, no studies have assessed endothelial function using PAT in patients with CML receiving TKIs. Method We measured the reactive hyperemia index (RHI) using PAT in young patients with CML (men aged ≤ 55 years and women aged ≤ 65 years) receiving TKIs. Results Thirty patients with CML were examined (mean age, 43.5 ± 9.8 years; men, 57%). The median RHI was 1.81. Among these patients, 16.7% and 83.3% were taking imatinib and second- or third-generation TKIs, respectively. There were no differences in the baseline characteristics between the low RHI (< 1.67, n = 10), borderline RHI (≥ 1.67 and < 2.10, n = 14), and normal RHI (≥ 2.10, n = 6) groups. Serum uric acid (UA) levels and the RHI were significantly negatively correlated (r = -0.40, p = 0.029). Conclusion One-third of young patients with CML receiving TKI therapy were classified as having a low RHI. The RHI was negatively correlated with serum UA level. Larger prospective studies are necessary to examine whether the RHI predicts cardiovascular events in such patients.https://doi.org/10.1186/s40959-023-00164-3Tyrosine kinase inhibitorsChronic myeloid leukemiaEndothelial dysfunctionUric acid
spellingShingle Tomohiro Kaneko
Sakiko Miyazaki
Azusa Kurita
Ryoko Morimoto
Shun Tsuchiya
Naoki Watanabe
Tomoiku Takaku
Norio Komatsu
Tohru Minamino
Endothelial function measured by peripheral arterial tonometry in patients with chronic myeloid leukemia on tyrosine kinase inhibitor therapy: a pilot study
Cardio-Oncology
Tyrosine kinase inhibitors
Chronic myeloid leukemia
Endothelial dysfunction
Uric acid
title Endothelial function measured by peripheral arterial tonometry in patients with chronic myeloid leukemia on tyrosine kinase inhibitor therapy: a pilot study
title_full Endothelial function measured by peripheral arterial tonometry in patients with chronic myeloid leukemia on tyrosine kinase inhibitor therapy: a pilot study
title_fullStr Endothelial function measured by peripheral arterial tonometry in patients with chronic myeloid leukemia on tyrosine kinase inhibitor therapy: a pilot study
title_full_unstemmed Endothelial function measured by peripheral arterial tonometry in patients with chronic myeloid leukemia on tyrosine kinase inhibitor therapy: a pilot study
title_short Endothelial function measured by peripheral arterial tonometry in patients with chronic myeloid leukemia on tyrosine kinase inhibitor therapy: a pilot study
title_sort endothelial function measured by peripheral arterial tonometry in patients with chronic myeloid leukemia on tyrosine kinase inhibitor therapy a pilot study
topic Tyrosine kinase inhibitors
Chronic myeloid leukemia
Endothelial dysfunction
Uric acid
url https://doi.org/10.1186/s40959-023-00164-3
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