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Table 1 Clinical Characteristics of case reports included

From: Dilated cardiomyopathy as the initial presentation of Becker muscular dystrophy: a systematic review of published cases

 

Papa et al. [5]

Bojaras et al. [6]

Finsterer et al. [7]

Guo et al. [8]

Juan-Mateu et al. [9]

Piccolo et al. [10]

Age of presentation

27

22

26

23

26

31

Gender

Male

Male

Male

Male

Male

Male

Initial complaint

NA

SOB and Orthopnea

NA

Progressive fatigue and exertional dyspnea

Asymptomatic*

SOB

Initial diagnosis

DCM

DCM

DCM

DCM

DCM*

DCM

Left ventricular EF at presentation

#

25%

#

35%

20%

17%

CK level at initial presentation (IU/l)

#

1964

#

4688

1400

#

Calf pseudohypertrophy at initial presentation

No

No

No

Yes

No

No

Management

Heart transplant performed 2 years after diagnosis

LVAD—Heart Transplant 3 years after diagnosis

Heart transplant—1 year after diagnosis

Not specified

Medical management

Heart transplant right after presentation

Age of initial musculoskeletal symptoms

31

23

33

No symptoms described

No symptoms described

No symptoms described

Musculoskeletal complaint

Lower limb weakness

Lower limb weakness

Lower limb weakness and thigh wasting

No symptoms described

No symptoms described

No symptoms described

BMD gene abnormality

BMD deletion exons 3–4

BMD deletion

BMD deletion exons 48 and 49 and the intronic short tandem repeat sequence STR 49

BMD deletion of exon 11–12

BMD Mosaicism Exon 44

BMD deletion exon 45–47

Family history of BMD

No

Brother

No

No

No

No

Confirmed family history of muscular dystrophy

No

No

No

No

No

Two uncles

CMR Findings

#

DCM with severe mitral valve regurgitation

#

LV lateral wall subepicardial replacement with fibrotic tissue and fat

#

#

Skeletal muscle biopsy

#

#

Dystrophic changes

#

Dystrophic changes

Dystrophic changes

Endomyocardial biopsy

#

Non-specific changes of DCM

#

#

#

Dystrophic changes

Outcome—Follow up

Death—21 years after presentation

Death—3–4 years after presentation

Alive—8 years after presentation

Unknown

Alive 3 years after presentation

Alive 4 years after presentation

  1. #Results were not described in the study; *Without symptoms, dilated cardiomyopathy was found incidentally during work up and the incidental finding of an elevated creatinine kinase level
  2. DCM Dilated cardiomyopathy, NA No available, SOB Shortness of breath, EF Ejection fraction, none: not reported by the study, CK Creatine Kinase, LVAD Left ventricular assisted device, BMD Becker muscular dystrophy, CMR Cardiac magnetic resonance, LV Left Ventricle