Quality of life and subjective symptom impact in Japanese patients with myotonic dystrophy type 1

Abstract Background Although functional impairment in patients with myotonic dystrophy is an important determinant of the quality of life (QoL), patients’ subjective evaluation of their symptoms may also affect their QoL. The aim of this study was to investigate the association between subjective sy...

Full description

Bibliographic Details
Main Authors: Haruo Fujino, Toshio Saito, Masanori P. Takahashi, Hiroto Takada, Takahiro Nakayama, Osamu Imura, Tsuyoshi Matsumura
Format: Article
Language:English
Published: BMC 2022-02-01
Series:BMC Neurology
Subjects:
Online Access:https://doi.org/10.1186/s12883-022-02581-w
_version_ 1819277420972212224
author Haruo Fujino
Toshio Saito
Masanori P. Takahashi
Hiroto Takada
Takahiro Nakayama
Osamu Imura
Tsuyoshi Matsumura
author_facet Haruo Fujino
Toshio Saito
Masanori P. Takahashi
Hiroto Takada
Takahiro Nakayama
Osamu Imura
Tsuyoshi Matsumura
author_sort Haruo Fujino
collection DOAJ
description Abstract Background Although functional impairment in patients with myotonic dystrophy is an important determinant of the quality of life (QoL), patients’ subjective evaluation of their symptoms may also affect their QoL. The aim of this study was to investigate the association between subjective symptom impact and the QoL of patients with myotonic dystrophy, after controlling for functional impairment. Methods Eligible patients with myotonic dystrophy type 1 (DM1) were recruited from four hospitals in Japan. The subjective symptom impact of four symptoms (muscle weakness, fatigue, pain, and myotonia) and overall QoL were evaluated using the Individualized Neuromuscular Quality of Life (INQoL) questionnaire. Functional impairment was assessed using the modified Rankin Scale. Results Seventy-seven patients with DM1 were included in this study. Overall QoL was significantly associated with subjective symptom impact of muscular weakness, fatigue, pain, myotonia, swallowing difficulty, and droopy eyelids. In the regression models, disease duration (beta = 0.11) and moderate to severe functional impairment (beta = 0.33) explained a significant part of the overall QoL. Furthermore, muscular weakness, fatigue, and myotonia significantly explained additional variance of the overall QoL (beta = 0.17–0.43). Conclusions Subjective symptom impact and functional impairment are independent features influencing the QoL of Japanese patients with DM1.
first_indexed 2024-12-23T23:55:50Z
format Article
id doaj.art-367b90097d8f485297d09e2776e1daf3
institution Directory Open Access Journal
issn 1471-2377
language English
last_indexed 2024-12-23T23:55:50Z
publishDate 2022-02-01
publisher BMC
record_format Article
series BMC Neurology
spelling doaj.art-367b90097d8f485297d09e2776e1daf32022-12-21T17:25:16ZengBMCBMC Neurology1471-23772022-02-012211710.1186/s12883-022-02581-wQuality of life and subjective symptom impact in Japanese patients with myotonic dystrophy type 1Haruo Fujino0Toshio Saito1Masanori P. Takahashi2Hiroto Takada3Takahiro Nakayama4Osamu Imura5Tsuyoshi Matsumura6Department of Child Development, United Graduate School of Child Development, Osaka UniversityDivision of Child Neurology, National Hospital Organization Osaka Toneyama Medical CenterDepartment of Clinical Laboratory and Biomedical Sciences, Osaka University Graduate School of MedicineDepartment of Neurology, National Hospital Organization Aomori National HospitalDepartment of Neurology, Yokohama Rosai HospitalGraduate School of Human Sciences, Osaka UniversityDepartment of Neurology, National Hospital Organization Osaka Toneyama Medical CenterAbstract Background Although functional impairment in patients with myotonic dystrophy is an important determinant of the quality of life (QoL), patients’ subjective evaluation of their symptoms may also affect their QoL. The aim of this study was to investigate the association between subjective symptom impact and the QoL of patients with myotonic dystrophy, after controlling for functional impairment. Methods Eligible patients with myotonic dystrophy type 1 (DM1) were recruited from four hospitals in Japan. The subjective symptom impact of four symptoms (muscle weakness, fatigue, pain, and myotonia) and overall QoL were evaluated using the Individualized Neuromuscular Quality of Life (INQoL) questionnaire. Functional impairment was assessed using the modified Rankin Scale. Results Seventy-seven patients with DM1 were included in this study. Overall QoL was significantly associated with subjective symptom impact of muscular weakness, fatigue, pain, myotonia, swallowing difficulty, and droopy eyelids. In the regression models, disease duration (beta = 0.11) and moderate to severe functional impairment (beta = 0.33) explained a significant part of the overall QoL. Furthermore, muscular weakness, fatigue, and myotonia significantly explained additional variance of the overall QoL (beta = 0.17–0.43). Conclusions Subjective symptom impact and functional impairment are independent features influencing the QoL of Japanese patients with DM1.https://doi.org/10.1186/s12883-022-02581-wMyotonic dystrophyNeuromuscular diseasesPatient-reported outcome measuresQuality of lifeSymptom impact
spellingShingle Haruo Fujino
Toshio Saito
Masanori P. Takahashi
Hiroto Takada
Takahiro Nakayama
Osamu Imura
Tsuyoshi Matsumura
Quality of life and subjective symptom impact in Japanese patients with myotonic dystrophy type 1
BMC Neurology
Myotonic dystrophy
Neuromuscular diseases
Patient-reported outcome measures
Quality of life
Symptom impact
title Quality of life and subjective symptom impact in Japanese patients with myotonic dystrophy type 1
title_full Quality of life and subjective symptom impact in Japanese patients with myotonic dystrophy type 1
title_fullStr Quality of life and subjective symptom impact in Japanese patients with myotonic dystrophy type 1
title_full_unstemmed Quality of life and subjective symptom impact in Japanese patients with myotonic dystrophy type 1
title_short Quality of life and subjective symptom impact in Japanese patients with myotonic dystrophy type 1
title_sort quality of life and subjective symptom impact in japanese patients with myotonic dystrophy type 1
topic Myotonic dystrophy
Neuromuscular diseases
Patient-reported outcome measures
Quality of life
Symptom impact
url https://doi.org/10.1186/s12883-022-02581-w
work_keys_str_mv AT haruofujino qualityoflifeandsubjectivesymptomimpactinjapanesepatientswithmyotonicdystrophytype1
AT toshiosaito qualityoflifeandsubjectivesymptomimpactinjapanesepatientswithmyotonicdystrophytype1
AT masanoriptakahashi qualityoflifeandsubjectivesymptomimpactinjapanesepatientswithmyotonicdystrophytype1
AT hirototakada qualityoflifeandsubjectivesymptomimpactinjapanesepatientswithmyotonicdystrophytype1
AT takahironakayama qualityoflifeandsubjectivesymptomimpactinjapanesepatientswithmyotonicdystrophytype1
AT osamuimura qualityoflifeandsubjectivesymptomimpactinjapanesepatientswithmyotonicdystrophytype1
AT tsuyoshimatsumura qualityoflifeandsubjectivesymptomimpactinjapanesepatientswithmyotonicdystrophytype1