SPORTS
CARDIOLOGYCAN
THE RIGHT VENTRICULAR OUTFLOW
FUNCTION BE CORRELATED WITH QRS ABNORMALITIES IN THE RIGHT PRECORDIAL
AND UPPER RIGHT PRECORDIAL LEADS (BRUGADA LEADS)? - AN
ECG-ECHOCARDIOGRAPHIC STUDY
Ioana Stoian, O. Chioncel,
Ileana tepes Piser, A. Carp, I. Stoian, C. Macarie
Romania
Purpose
– to analyze the correlation between the RSR’
patern in
right precordial leads (V1-V3) and upper precordial leads (V1-V3
Brugada leads ) on standard ECG and the right ventricular outflow
function ( evaluated by standard echocardiography ) in highly trained
athletes. Material. Gr.I ( control normal ) – 610 c. (280
males;
31±12 years); Gr.II (highly trained athletes: kayak, canoe,
rowing)-110 c.(82 males;23±7 years). Methods 1) standard 12
leads ECG – one/two upper space right precordial leads
(V1-V3,
Brugada ledas). 2) echocardiography – right ventricular
outflow
tract (RVOT) – short axis parasetrnal ( diameters; ejection
fraction; wall thickness); right ventricular inflow tract (RVIT)
– apical 4 chamber (diameters; TAPSE;dP/dt)
Results.
|
| Gr. I
| Gr.
II
| | Nr.
| 610
| 110
| | RSR’ V1-V3 |
6% | 42% |
| RSR’
V1-V3
upper leads |
16%
| 68%
| | QRS (ms) | 80±10 |
100±20 |
| RVOT
diameter
| 21±3
| 27±8,p<0,05
| | Wall tichkness RVOT (mm) |
2±0,5 |
3,5±0,5,p<0,01
| | RV EF (%) | 41±15 |
48±18 |
| RVIT
diameter (mm)
| 24±3
| 26±4
| | TAPSE (mm) | 17±8 |
21±8 |
| RV
dP/dt | 427±18
| 441±25
|
RV
– right ventricle; RVOT – right ventricular outflow
tract; RVIT – right ventricular inflow tract;
TAPSE – tricuspid annular plane systolic excursion; EF
–
ejection fraction.
Conclusions.
1) The RSR’ pattern was associated with larger RVOT diameter
(27±8, p<0,05) and thicken RVOT free wall
(3,5±0,5,
p<0,01) in highly trained athletes. 2) The RSR’
pattern in
right precordial leads (V1-V3) and upper right precordial leads ( V1-V3
Brugada leads ) on standard ECG was observed in the majority of highly
trained athletes ( Gr. II: 42%/68% ) comparing with normal subjects
(Gr. I: 6%/16% ).
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