Time to achieve a patient acceptable symptom state in myasthenia gravis

IntroductionThe patient acceptable symptom state (PASS) is a reliable way to characterize a patient’s satisfaction with their disease state in a “Yes”/“No” dichotomous manner. There is limited data on the time required to reach an acceptable state in Myasthenia Gravis (MG). We aimed to determine the...

Full description

Bibliographic Details
Main Authors: Rodrigo Martinez-Harms, Carolina Barnett, Vera Bril
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-06-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2023.1187189/full
_version_ 1797802595557834752
author Rodrigo Martinez-Harms
Rodrigo Martinez-Harms
Carolina Barnett
Carolina Barnett
Vera Bril
Vera Bril
author_facet Rodrigo Martinez-Harms
Rodrigo Martinez-Harms
Carolina Barnett
Carolina Barnett
Vera Bril
Vera Bril
author_sort Rodrigo Martinez-Harms
collection DOAJ
description IntroductionThe patient acceptable symptom state (PASS) is a reliable way to characterize a patient’s satisfaction with their disease state in a “Yes”/“No” dichotomous manner. There is limited data on the time required to reach an acceptable state in Myasthenia Gravis (MG). We aimed to determine the time to reach a first PASS “Yes” response in patients at MG diagnosis and a PASS “No” status, and also to determine the influence of various factors on this time.MethodsWe performed a retrospective study of patients diagnosed with myasthenia gravis who had an initial PASS “No” response and defined the time to reach a first PASS “Yes” by Kaplan–Meier analysis. Correlations were made between demographics, clinical characteristics, treatment and disease severity, using the Myasthenia Gravis Impairment Index (MGII) and Simple Single Question (SSQ).ResultsIn 86 patients meeting inclusion criteria, the median time to PASS “Yes” was 15  months (95% CI 11–18). Of 67 MG patients who achieved PASS “Yes,” 61 (91%), achieved it by 25  months after diagnosis. Patients who required only prednisone therapy achieved PASS “Yes” in a shorter time with a median of 5.5  months (p = 0.01). Very-late-onset MG patients reached PASS “Yes” status in a shorter time (HR = 1.99, 95% CI 0.26–2.63; p = 0.001).DiscussionMost patients reached PASS “Yes” by 25  months after diagnosis. MG patients who only required prednisone and those with very-late-onset MG reach PASS “Yes” in shorter intervals.
first_indexed 2024-03-13T05:09:01Z
format Article
id doaj.art-8326f7095f7f432cb093135a1978b4c8
institution Directory Open Access Journal
issn 1664-2295
language English
last_indexed 2024-03-13T05:09:01Z
publishDate 2023-06-01
publisher Frontiers Media S.A.
record_format Article
series Frontiers in Neurology
spelling doaj.art-8326f7095f7f432cb093135a1978b4c82023-06-16T06:12:33ZengFrontiers Media S.A.Frontiers in Neurology1664-22952023-06-011410.3389/fneur.2023.11871891187189Time to achieve a patient acceptable symptom state in myasthenia gravisRodrigo Martinez-Harms0Rodrigo Martinez-Harms1Carolina Barnett2Carolina Barnett3Vera Bril4Vera Bril5Ellen & Martin Prosserman Centre for Neuromuscular Diseases, Toronto General Hospital, Toronto, ON, CanadaDepartment of Medicine, University Health Network, University of Toronto, Toronto, ON, CanadaEllen & Martin Prosserman Centre for Neuromuscular Diseases, Toronto General Hospital, Toronto, ON, CanadaDepartment of Medicine, University Health Network, University of Toronto, Toronto, ON, CanadaEllen & Martin Prosserman Centre for Neuromuscular Diseases, Toronto General Hospital, Toronto, ON, CanadaDepartment of Medicine, University Health Network, University of Toronto, Toronto, ON, CanadaIntroductionThe patient acceptable symptom state (PASS) is a reliable way to characterize a patient’s satisfaction with their disease state in a “Yes”/“No” dichotomous manner. There is limited data on the time required to reach an acceptable state in Myasthenia Gravis (MG). We aimed to determine the time to reach a first PASS “Yes” response in patients at MG diagnosis and a PASS “No” status, and also to determine the influence of various factors on this time.MethodsWe performed a retrospective study of patients diagnosed with myasthenia gravis who had an initial PASS “No” response and defined the time to reach a first PASS “Yes” by Kaplan–Meier analysis. Correlations were made between demographics, clinical characteristics, treatment and disease severity, using the Myasthenia Gravis Impairment Index (MGII) and Simple Single Question (SSQ).ResultsIn 86 patients meeting inclusion criteria, the median time to PASS “Yes” was 15  months (95% CI 11–18). Of 67 MG patients who achieved PASS “Yes,” 61 (91%), achieved it by 25  months after diagnosis. Patients who required only prednisone therapy achieved PASS “Yes” in a shorter time with a median of 5.5  months (p = 0.01). Very-late-onset MG patients reached PASS “Yes” status in a shorter time (HR = 1.99, 95% CI 0.26–2.63; p = 0.001).DiscussionMost patients reached PASS “Yes” by 25  months after diagnosis. MG patients who only required prednisone and those with very-late-onset MG reach PASS “Yes” in shorter intervals.https://www.frontiersin.org/articles/10.3389/fneur.2023.1187189/fullmyasthenia gravispatient acceptable symptom statemyasthenia gravis impairment indexsingle simple questionsatisfactory disease status
spellingShingle Rodrigo Martinez-Harms
Rodrigo Martinez-Harms
Carolina Barnett
Carolina Barnett
Vera Bril
Vera Bril
Time to achieve a patient acceptable symptom state in myasthenia gravis
Frontiers in Neurology
myasthenia gravis
patient acceptable symptom state
myasthenia gravis impairment index
single simple question
satisfactory disease status
title Time to achieve a patient acceptable symptom state in myasthenia gravis
title_full Time to achieve a patient acceptable symptom state in myasthenia gravis
title_fullStr Time to achieve a patient acceptable symptom state in myasthenia gravis
title_full_unstemmed Time to achieve a patient acceptable symptom state in myasthenia gravis
title_short Time to achieve a patient acceptable symptom state in myasthenia gravis
title_sort time to achieve a patient acceptable symptom state in myasthenia gravis
topic myasthenia gravis
patient acceptable symptom state
myasthenia gravis impairment index
single simple question
satisfactory disease status
url https://www.frontiersin.org/articles/10.3389/fneur.2023.1187189/full
work_keys_str_mv AT rodrigomartinezharms timetoachieveapatientacceptablesymptomstateinmyastheniagravis
AT rodrigomartinezharms timetoachieveapatientacceptablesymptomstateinmyastheniagravis
AT carolinabarnett timetoachieveapatientacceptablesymptomstateinmyastheniagravis
AT carolinabarnett timetoachieveapatientacceptablesymptomstateinmyastheniagravis
AT verabril timetoachieveapatientacceptablesymptomstateinmyastheniagravis
AT verabril timetoachieveapatientacceptablesymptomstateinmyastheniagravis