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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 PLoS+One
2018 ; 13
(4
): e0195594
Nephropedia Template TP
gab.com Text
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English Wikipedia
Relations between right ventricular morphology and clinical, electrical and
genetic parameters in Brugada Syndrome
#MMPMID29652902
Gray B
; Gnanappa GK
; Bagnall RD
; Femia G
; Yeates L
; Ingles J
; Burns C
; Puranik R
; Grieve SM
; Semsarian C
; Sy RW
PLoS One
2018[]; 13
(4
): e0195594
PMID29652902
show ga
BACKGROUND: Increasing evidence suggests the presence of structural changes
affecting the right ventricular outflow tract (RVOT) in patients with Brugada
Syndrome (BrS). The aim of this study was to characterise the RV morphology in
BrS and explore associations between morphologic, clinical, electrical, and
genetic parameters using non-invasive multimodality testing. METHODS: Consecutive
BrS patients (recruited 2013-2015) underwent clinical assessment, dedicated RV
imaging using cardiac magnetic resonance (CMR) imaging (unless contra-indicated),
electrical assessment (electrocardiogram, Holter monitoring, signal-averaged
ECG[SAECG]) and genotyping. Morphologic data were compared to matched control and
unmatched ARVC (arrhythmogenic right ventricular cardiomyopathy) cohorts, and
potential associations between morphologic parameters and other variables were
explored. RESULTS: BrS patients (n = 42, male 86%, age 46±12 years) exhibited
normal global RV volume and function, comparable to control, in contrast to
significantly larger, impaired RVs in ARVC cohort (RVESV p = 0.0001; RVEDV
p<0.0001, RVEF p = 0.002). Compared with control, BrS patients exhibited larger
RVOT volumes (7.4 ± 0.7 vs 5.8 ± 0.7 mL/m2, p<0.0001) and wall motion
abnormalities (RWMA) (31% vs 0%, p = 0.005); compared with ARVC cohort, the RVOT
volumes were similar (7.4 ± 0.7 vs, 8.1 ± 1.7, p = 0.52) and there were less RWMA
(31% vs 76%, p = 0.01). Overall 67% BrS patients had abnormal RVOT morphology.
Patients with abnormal RVOT tended to be older (48 ± 12 y vs 41 ± 12y, p = 0.06).
Rare genetic variants were only observed in patients with abnormal RVOT
morphology (36% vs 0%, p = 0.02). CONCLUSIONS: Patients with BrS frequently
exhibit structural abnormalities localised to the RVOT and these changes may be
age- and gene-dependent.