Introduction
Methods
Mutation analysis
Clinical evaluation
Genealogy
Haplotype analysis
Geographical distribution of carriers
Results
Yield of mutation analyses of the DES gene in the Netherlands
Mutation | References | Familial | Ethnicity | Founder / de novo
| Remarks |
---|---|---|---|---|---|
p.S13F | 6,8 | 5 families | Dutch | Founder | |
This article | 3 families | Dutch | Founder | ||
12 | 1 family | Chinese | Different haplotype to Dutch founder | ||
p.N342D | This article | 2 families | Dutch | Founder | |
7 | 1 family | Dutch | Founder | ||
1,14 | 1 family | Irish-German |
De novo
| ||
p.R454W | 7 | 1 family | Dutch | ||
11 | 1 patient | North African |
De novo
| Additional MYOT mutation | |
p.T442I | 11 | 1 family | French | ||
This article | 1 patient | Dutch | |||
p.T453I | 10 | 1 patient | Italian? |
De novo
| |
This article | 1 patient | Dutch |
De novo
|
Cardiac phenotype of p.S13F
Patient ID | M/F | Genetic status | Referred for (age) | Cardiologic: ECG/rhythm (age) | Cardiologic: Structural (age) | Neuromuscular phenotype: Myopathy (age) | Outcome/follow-up (age) |
---|---|---|---|---|---|---|---|
D-II-7 8
| F | p.S13F | collapse (55) | RBBB, cAVB, LAHB (55) | normal (56) | iliopsoas, CK 237 (57) | PM (55) |
D-III-3 8
| M | p.S13F | screening (37) | PVCs, IVCD (37) | normal (37) | no MW, CK 782 (37) | |
D-III-4 8
| F | p.S13F | screening (32) | IVCD (32) | normal (32) | normal (33) | |
E-I-2 8
| F | p.S13F | MW (54) | incomplete RBBB (62), incomplete RBBB, borderline first-degree AVB, LAHB (71) | normal (71) | distal, CK normal (54) | |
F-III-1
| M | p.S13F (index) | arrhythmias (32) | PACs, AVNRT, AVB, RBBB(32); cAVB (36); atrial flutter (42) | DCM with severe LV and RV dysfunction (42) | MW (28), limb-girdle, CK 400-800 (38) | PM (36); wheel chair (42); D heart failure (43) |
G-III-1
| M | p.S13F (index) | Effort-related chest discomfort (37) | SSS, NSVTs, PVCs, RBBB, LAHB, intermittent first- and second-degree AVB (37); cAVB | DCM with moderate LV and severe RVdysfunction (49) | mild shoulder-girdle (52) | PM (37), recurrent presyncope (48, 49), collapse (49), ICD (50), ICD/CRT (52); HTX waiting list (52) |
H-III-1
| F | p.S13F (index) | collapse (36) | cAVB (36) | normal (36); mild LVdysfunction (38) | mild iliopsoas (38) | PM (36); ICD (40) |
H-III-2 | F | p.S13F | screening (33) | IVCD (33) | normal (33) | no weakness (33) | |
H-IV-2 | M | p.S13F | screening (9) | PVCs, LBBB (9) | NA (pending) | no weakness (9) | |
P-I-2 12
| F | p.S13F | screening | NA | NA | very mild proximal and distal, CK 270 | |
P-II-2 12
| F | p.S13F | screening | NA | NA | very mild proximal and distal, CK 270 | palpitations |
P-II-3 12
| M | p.S13F (index) | collapse (39) | cAVB (39) | normal (39) | mild proximal and distal limb, CK 1028 (39) | PM (39) |
P-II-4 12
| M | p.S13F | screening | NA | NA | mild proximal and distal limb, CK 1125 | syncope |
Genealogy and haplotype analysis of families with p.S13F
Cardiac phenotype of p.N342D
Patient ID | M/F | Genetic status | Referred for (age) | Cardiologic: ECG/rhythm (age) | Cardiologic: Structural (age) | Neuromuscular phenotype: Myopathy (age) | Outcome/follow-up (age) |
---|---|---|---|---|---|---|---|
O-II-5 | M | OC | MW (42) | AF, PVCs, LAHB | cardiac enlargement | scapulo-ilio-peroneal, bulbar, neck flexors (53) | D (53) |
O-II-6 | M | OC | MW (32) | AF, PVCs, cAVB | cardiac enlargement | scapulo-ilio-peroneal, bulbar, neck flexors (50) | D (52) |
O-III-1 | F | Likely | MW (33) | Repolarisation abnormality | NA | scapulo-ilio-peroneal (35) | |
O-III-4 | F | OC | MW (32) | RBBB | NA | scapulo-ilio-peroneal, bulbar, neck flexors (36) | D (45) |
O-III-6 | F | Likely | NA | PVCs, repolarisation abnormality | NA | peroneal | D (53) |
O-III-12 | F | p.N342D | MW (37) | Repolarisation abnormality (63) | LV hypertrophy (63) | bent spine, scapuloperoneal (52) | |
O-III-13 | F | OC | MW (21) | normal | NA | scapulo-ilio-peroneal, bulbar (27) | D (52) |
O-III-14 | M | p.N342D | MW (23) | repolarisation abnormality (24); atrial rhythm, incomplete RBBB (41); PACs, RBBB (43) | cardiac enlargement | peroneal, bulbar (23) | D possibly MI (54) |
O-III-15 | F | p.N342D | MW (38) | atrial rhythm, repolarisation abnormality (45); RBBB, LAHB (51) | slight LA enlargement (51) | MW (38) | |
O-IV-2 | F | p.N342D (index) | MW (27) | RBBB (45) | normal (45) | bulbar, neck flexors, ilioperoneal (38) | |
O-IV-9 | F | p.N342D | MW (23) | normal (35) | normal (35) | bulbar, neck flexors, scapiloperoneal (34) | |
U-II-3 | F | likely | MW (40) | PACs, PVCs, RBBB, first-degree AVB, LAHB | cardiac enlargement | scapulo-ilio-peroneal (66) | D (74) |
U-II-7 | F | OC | MW (36) | first-degree AVB, LAHB | NA | scapulo-ilio-peroneal, neck flexors (53) | D (60) |
U-III-1 | M | likely | MW (21) | RBBB | LV hypertrophy | ilio-peroneal (32) | D |
U-III-6 | M | likely | MW (35) | AF, VTs (46) | RV > LV dysfunction (46) | peroneal (35), later scapulo-ilio-peroneal | PM (46); D HF (65) |
U-III-8 | M | likely | MW (28) | normal | NA | scapulo-ilio-peroneal (33) | D (46) |
U-III-12 | M | likely | MW (21) | junctional tachycardia, RBBB, LAHB | cardiac enlargement | scapulo-ilio-peroneal, neck flexors (41) | D (44) |
U-III-14 | F | p.N342D | NA | LAHB | NA | peroneal (29) | D (44) |
U-III-15 | F | p.N342D | NA | Repolarisation abnormality (45) | NA | scapulo-ileo-peroneal (28) | D (53) |
U-III-17 | F | p.N342D | MW (16) | PACs, PVCs, ventricular bigeminy, NSVTs, repolarisation abnormality (23) | normal (31) | scapulo-ileo-peroneal, CK elevated (17) | D (38) |
U-IV-3 | M | likely | arrhythmias (35) | VTs, RBBB, LAHB (35) | NA | scapulo-peroneal (37) | PM (35); ICD |
U-IV-4 | M | likely | MW (32) | normal | normal | ilio-peroneal | |
U-IV-5 | M | p.N342D (index) | painful calves (23) | NA | NA | ilio-peroneal, neck flexors (29) | palpitations, exertional dyspnoea; D (41) |
U-IV-6 | F | likely | MW (26) | NA | NA | scapulo-ilio-peroneal, neck flexors (35) | |
U-IV-9 | F | p.N342D | MW (27) | normal (29) | normal (29) | scapulo-ileo-peroneal (29) | |
A-II-1 7
| M | p.N342D (index) | MW, palpitations (36) | AF (39); sinus arrests, PVCs, first-degree AVB, repolarisation abnormalities (negative Ts multiple leads), epsilon wave (41); VTs (42) | ARVC (42) | leggs (36), later hand and diaphragma | collapse, resuscitation, ICD (42) |
A-II-2 7
| M | p.N342D | MW (41) | first-degree AVB (46) | LV dysfunction (46) | leggs (41) | |
D-I-3 1,14
| F | p.N342D (index) | MW (30) | normal | NA | distal, CK 364 (30), later proximal | wheelchair (45) |
D-I-4 1,14
| M | p.N342D | MW (23) | normal | NA | mild distal (23), CK 963 (25) |