What question did this study set out to answer?

To evaluate the relationship between upper extremity muscle MRI findings and muscle weakness in patients with myotonic dystrophy type 1.

January 1, 2016European Neurology

Muscle MRI of the Upper Extremity in the Myotonic Dystrophy Type 1

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Authors

KHKouji Hayashi THTadanori Hamano YKYasutaka Kawamura

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Overview

Observational study demonstrates upper extremity muscle MRI damage correlates with weakness in myotonic dystrophy type 1, highlighting its clinical utility for tracking disease.

Key Points

To evaluate the relationship between upper extremity muscle MRI findings and muscle weakness in patients with myotonic dystrophy type 1.
Enrolled 19 patients with myotonic dystrophy type 1 from 15 families.
Assessed muscle weakness using the modified Medical Research Council scale alongside genetic testing.
Performed upper extremity muscle MRI scans to assess muscle involvement patterns.
The flexor digitorum profundus, flexor pollicis longus, flexor digitorum superficialis, extensor pollicis, abductor pollicis longus, lateral head of triceps brachii, and infraspinatus were frequently and severely affected.
Muscle strength and disease duration significantly correlated with MRI severity across several arm and forearm muscles, particularly the flexor digitorum profundus and biceps brachii.
Trinucleotide repeat expansion size of myotonin protein kinase showed no significant correlation with muscle MRI findings.

Cite This Study

Hayashi et al. (2016) studied this question.

synapsesocial.com/papers/6aa04d47742952fb2b176fe0 https://doi.org/10.1159/000448328

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January 1, 2016European Neurology

Muscle MRI of the Upper Extremity in the Myotonic Dystrophy Type 1

View Full Paper

Ask AI

Bookmark

Authors

KHKouji Hayashi THTadanori Hamano YKYasutaka Kawamura

Discussion

Member takes

Overview

Observational study demonstrates upper extremity muscle MRI damage correlates with weakness in myotonic dystrophy type 1, highlighting its clinical utility for tracking disease.

Key Points

To evaluate the relationship between upper extremity muscle MRI findings and muscle weakness in patients with myotonic dystrophy type 1.
Enrolled 19 patients with myotonic dystrophy type 1 from 15 families.
Assessed muscle weakness using the modified Medical Research Council scale alongside genetic testing.
Performed upper extremity muscle MRI scans to assess muscle involvement patterns.
The flexor digitorum profundus, flexor pollicis longus, flexor digitorum superficialis, extensor pollicis, abductor pollicis longus, lateral head of triceps brachii, and infraspinatus were frequently and severely affected.
Muscle strength and disease duration significantly correlated with MRI severity across several arm and forearm muscles, particularly the flexor digitorum profundus and biceps brachii.
Trinucleotide repeat expansion size of myotonin protein kinase showed no significant correlation with muscle MRI findings.

Cite This Study

Hayashi et al. (2016) studied this question.

synapsesocial.com/papers/6aa04d47742952fb2b176fe0 https://doi.org/10.1159/000448328

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