Serum angiotensin‐converting enzyme levels indicating early sarcoidosis diagnosis and immunosuppressive therapy efficacy

Abstract Aims This study aimed to determine the new cut‐off value of serum angiotensin‐converting enzyme (ACE) levels for detecting patients with sarcoidosis and to examine the change in ACE levels after the initiation of immunosuppressive therapy. Methods and results We retrospectively examined pat...

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Main Authors: Hideki Kawai, Hiroyuki Naruse, Masayoshi Sarai, Yasuchika Kato, Yoshihiro Sato, Hiroshi Takahashi, Junnichi Ishii, Hiroyasu Ito, Shin‐ichiro Morimoto, Hideo Izawa
Format: Article
Language:English
Published: Wiley 2023-06-01
Series:ESC Heart Failure
Subjects:
Online Access:https://doi.org/10.1002/ehf2.14343
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author Hideki Kawai
Hiroyuki Naruse
Masayoshi Sarai
Yasuchika Kato
Yoshihiro Sato
Hiroshi Takahashi
Junnichi Ishii
Hiroyasu Ito
Shin‐ichiro Morimoto
Hideo Izawa
author_facet Hideki Kawai
Hiroyuki Naruse
Masayoshi Sarai
Yasuchika Kato
Yoshihiro Sato
Hiroshi Takahashi
Junnichi Ishii
Hiroyasu Ito
Shin‐ichiro Morimoto
Hideo Izawa
author_sort Hideki Kawai
collection DOAJ
description Abstract Aims This study aimed to determine the new cut‐off value of serum angiotensin‐converting enzyme (ACE) levels for detecting patients with sarcoidosis and to examine the change in ACE levels after the initiation of immunosuppressive therapy. Methods and results We retrospectively examined patients in whom serum ACE levels were measured for suspected sarcoidosis between 2009 and 2020 in our institution. For patients diagnosed with sarcoidosis, changes in ACE levels were also observed. Of the 3781 patients (51.1% men, 60.1 ± 17.0 years old), 477 were excluded for taking ACE inhibitors and/or immunosuppression agents or those with any diseases affecting serum ACE levels. In 3304 patients including 215 with sarcoidosis, serum ACE levels were 19.6 IU/L [interquartile range, 15.1–31.5] in patients with sarcoidosis and 10.7 [8.4–16.5] in those without sarcoidosis (P < 0.01), and the best cut‐off value was 14.7 IU/L with 0.865 of the area under the curves. Compared with the current ACE cut‐off of 21.4, the sensitivity improved from 42.3 to 78.1 at the new cut‐off, although specificity slightly decreased from 98.6 to 81.7. The ACE level significantly decreased more in those with immunosuppression therapy than in those without it (P for interaction <0.01), although it decreased in both groups (P < 0.01). Conclusions Because the sensitivity for detecting sarcoidosis is comparatively low at the current standard value, further examinations are needed for patients suspected of sarcoidosis with relatively high ACE levels in the normal range. In patients with sarcoidosis, ACE levels decreased after the initiation of immunosuppression therapy.
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spelling doaj.art-6b6fc0fab4ac4f7c81a3158bcd820df62023-05-18T03:08:57ZengWileyESC Heart Failure2055-58222023-06-011031803181010.1002/ehf2.14343Serum angiotensin‐converting enzyme levels indicating early sarcoidosis diagnosis and immunosuppressive therapy efficacyHideki Kawai0Hiroyuki Naruse1Masayoshi Sarai2Yasuchika Kato3Yoshihiro Sato4Hiroshi Takahashi5Junnichi Ishii6Hiroyasu Ito7Shin‐ichiro Morimoto8Hideo Izawa9Department of Cardiology Fujita Health University Toyoake JapanDepartment of Clinical Pathophysiology, Graduate School of Health Sciences Fujita Health University Toyoake JapanDepartment of Cardiology Fujita Health University Toyoake JapanDepartment of Cardiology Fujita Health University Toyoake JapanDepartment of Cardiology Fujita Health University Toyoake JapanDepartment of Cardiology Fujita Health University Toyoake JapanDepartment of Cardiology Fujita Health University Toyoake JapanDepartment of Joint Research Laboratory of Clinical Medicine, School of Medicine Fujita Health University Toyoake JapanDepartment of Cardiology Fujita Health University Toyoake JapanDepartment of Cardiology Fujita Health University Toyoake JapanAbstract Aims This study aimed to determine the new cut‐off value of serum angiotensin‐converting enzyme (ACE) levels for detecting patients with sarcoidosis and to examine the change in ACE levels after the initiation of immunosuppressive therapy. Methods and results We retrospectively examined patients in whom serum ACE levels were measured for suspected sarcoidosis between 2009 and 2020 in our institution. For patients diagnosed with sarcoidosis, changes in ACE levels were also observed. Of the 3781 patients (51.1% men, 60.1 ± 17.0 years old), 477 were excluded for taking ACE inhibitors and/or immunosuppression agents or those with any diseases affecting serum ACE levels. In 3304 patients including 215 with sarcoidosis, serum ACE levels were 19.6 IU/L [interquartile range, 15.1–31.5] in patients with sarcoidosis and 10.7 [8.4–16.5] in those without sarcoidosis (P < 0.01), and the best cut‐off value was 14.7 IU/L with 0.865 of the area under the curves. Compared with the current ACE cut‐off of 21.4, the sensitivity improved from 42.3 to 78.1 at the new cut‐off, although specificity slightly decreased from 98.6 to 81.7. The ACE level significantly decreased more in those with immunosuppression therapy than in those without it (P for interaction <0.01), although it decreased in both groups (P < 0.01). Conclusions Because the sensitivity for detecting sarcoidosis is comparatively low at the current standard value, further examinations are needed for patients suspected of sarcoidosis with relatively high ACE levels in the normal range. In patients with sarcoidosis, ACE levels decreased after the initiation of immunosuppression therapy.https://doi.org/10.1002/ehf2.14343SarcoidosisAngiotensin‐converting enzymeImmunosuppressive therapyPolymorphism
spellingShingle Hideki Kawai
Hiroyuki Naruse
Masayoshi Sarai
Yasuchika Kato
Yoshihiro Sato
Hiroshi Takahashi
Junnichi Ishii
Hiroyasu Ito
Shin‐ichiro Morimoto
Hideo Izawa
Serum angiotensin‐converting enzyme levels indicating early sarcoidosis diagnosis and immunosuppressive therapy efficacy
ESC Heart Failure
Sarcoidosis
Angiotensin‐converting enzyme
Immunosuppressive therapy
Polymorphism
title Serum angiotensin‐converting enzyme levels indicating early sarcoidosis diagnosis and immunosuppressive therapy efficacy
title_full Serum angiotensin‐converting enzyme levels indicating early sarcoidosis diagnosis and immunosuppressive therapy efficacy
title_fullStr Serum angiotensin‐converting enzyme levels indicating early sarcoidosis diagnosis and immunosuppressive therapy efficacy
title_full_unstemmed Serum angiotensin‐converting enzyme levels indicating early sarcoidosis diagnosis and immunosuppressive therapy efficacy
title_short Serum angiotensin‐converting enzyme levels indicating early sarcoidosis diagnosis and immunosuppressive therapy efficacy
title_sort serum angiotensin converting enzyme levels indicating early sarcoidosis diagnosis and immunosuppressive therapy efficacy
topic Sarcoidosis
Angiotensin‐converting enzyme
Immunosuppressive therapy
Polymorphism
url https://doi.org/10.1002/ehf2.14343
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