UNIT OF INHERITED CV DISEASES HEART CENTER...
Transcript of UNIT OF INHERITED CV DISEASES HEART CENTER...
•
UNIT OF INHERITED CV DISEASES HEART CENTER FOR THE YOUNG AND ATHLETES A DPT OF CARDIOLOGY –UNIVERSITY OF ATHENS
ELECTRICAL STRUCTURAL
FUNCTIONAL
Bradycardia
Repolarisation anomalies
Voltage criteria for chamber enlargement
Arrhythmias
Increased chamber wall thickness and
cavity size
Enhanced diastolic filling
Augmentation of stroke volume
Maron, N Engl J Med, 2003
HCM vs ATHLETES
Differen'al*Diagnosis*Star'ng*Points*** **
!!ECHO:!LVH!in!black!athletes!(13!–!16!mm)!
ECG : Inverted T-waves ARRHYTHMIAS ARRHYTHMIAS
ATHLETE WITH LVH
HCM vs ATHLETES
Differen'al*Diagnosis*Star'ng*Points*
*ECHO:*LVH*in*black*athletes*(13*–*16*mm)* ECG : Inverted T-waves ECG : Inverted T-waves
ARRHYTHMIAS *ARRHYTHMIAS *
SUBCLINICAL FORM The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again.
Neal K. Lakdawala et al., Am J Cardiol 2011
Q waves and repolarization abnormalities are the most discriminating ECG features of sarcomere mutation carriers with and without LVH. However, owing to the limited sensitivity of ECG and echocardiographic screening, genetic testing is required to definitively identify at-risk family members.
Distinguishing ECG abnormalities in G/LVH subjects. (A–C) Q waves (black arrows) and repolarization changes (T-wave inversions [asterisks] and/or ST-segment depressions [arrowheads]) were significantly more common in G/LVH subjects than G normal control relatives. IVS interventricular septum thickness by echocardiography.
ATHLETES ECG
• Cardiovascular remodelling in the conditioned athlete is frequently associated with physiologic ECG changes.
• Abnormalities, however, may be detected which represent expression of an underlying heart disease which puts the athlete at risk of arrhythmic cardiac arrest during sport. EUROPEAN RECOMMENDATIONS Eur Heart J 2010
QTc
Distinct abnormalities (57 athletes – 12.4%)
LVH & repolarization abnormalities
V1-V2
V1-V3
460 elite athletes
LONG DISTANCE RUNNING INVERTED T WAVES V1-V4,
SOKOLOW,P-R:220
ELECTRICAL STRUCTURAL
FUNCTIONAL
Bradycardia
Repolarisation anomalies
Voltage criteria for chamber enlargement
Arrhythmias
Increased chamber wall thickness and
cavity size
Enhanced diastolic filling
Augmentation of stroke volume
ATLETES HEART OR PATHOLOGICAL SUBSTRATE
• LVH ; 12-15 • LVEDD DILATED • RV DILATED • Abnormal ECG • Arrhythmias
13%
2% LVH Adult athletes
Male sex
Large BSA Endurance Sports
Black Ethnicity
Anabolic drugs
0
5
10
15
20
25
30
35
40
6 7 8 9 10 11 12 13 14 15 16
Maximal LVWT
% BlackWhite
13%
2%
Uniform/homogeneous LV wall thickness
Large/High normal LV Cavity (> 55)
LA diameter < 50
Absence of systolic anterior motion of the anterior mitral valve leaflet
Normal diastolic function
Echocardiographic Strain Imaging to Assess Early and Late Consequences of Sarcomere Mutations in Hypertrophic Cardiomyopathy Carolyn Y. Ho et al., Circ Cardiovasc Genet. 2009 Diastolic dysfunction is an early consequence of sarcomere mutations, whereas systolic dysfunction results from mutations combined with subsequent pathological remodeling. Identifying mechanistic pathways triggered by these mutations may begin to reshape the clinical paradigm for treatment, based on early diagnosis and disease prevention.
Representative 2D longitudinal strain (left) and strain rate (right) tracings from echocardiographic strain analysis in control, preclinical, and subjects with overt HCM. Measurements are taken from the interventricular septum. Tracings from the basal, mid, and apical segments are depicted in yellow, blue, and green, respectively. Arrows indicate peak values.
Increased left ventricular torsion in hypertrophic cardiomyopathy mutation carriers with normal wall thickness Iris K Rüssel et al., J Cardiovasc Magn Reson 2011 Carriers with normal wall thickness display increased LV torsion and TECS-ratio with respect to controls, which might be due to subendocardial myocardial dysfunction.
Error bar plots of Peak LV Torsion (A) and TECS-ratio (B) (torsion to endocardial circumferential shortening) in the control and carrier group. The difference between both groups is significant.
- Isolated Sokolow-Lyon LVH +
+ Pathological Q waves -
+ Marked ST segment depression
+ Left bundle branch block -
+ Deep T wave inversions in any lead in Caucasian athletes -
+ Deep T wave inversions in inferior or lateral - leads in black athletes
HCM
Athlete’s Heart
Recommendations for interpretation of 12-lead electrocardiogram in the athlete
Domenico Corrado, Antonio Pelliccia, Hein Heidbuchel, Sanjay Sharma, Mark Link, Cristina Basso, Alessandro Biffi, Gianfranco Buja, Pietro Delise, Ihor Gussac, Aris Anastasakis, Mats Borjesson, Hans Halvor
Bjørnstad, François Carrè, Asterios Deligiannis, Dorian Dugmore, Robert Fagard, Jan Hoogsteen, Klaus P. Mellwig, Nicole Panhuyzen-Goedkoop, Erik Solberg Luc Vanhees, Jonathan Drezner, N.A. Mark Estes III Sabino
Iliceto, Barry J. Maron Roberto Peidro Peter J. Schwartz Ricardo Stein Gaetano Thiene, Paolo Zeppilli and William J. McKenna
The*document*provides*cardiologists*and*sports*medical*physicians*with*a*modern*approach*to*correct*interpreta'on*of*12Llead*ECG*in*the*athlete*and*emerging*understanding*of*incomplete*penetrance*of*inherited*cardiovascular*disease.*When*the*ECG*of*an*athlete*is*examined,*the*main*objec've*is*to*dis'nguish*between*physiological*paSerns*that*should*cause*no*alarm*and*those*that*require*ac'on*and/or*addi'onal*tes'ng*to*exclude*(or*confirm)*the*suspicion*of*an*underlying*cardiovascular*condi'on*carrying*the*risk*of*sudden*death*during*sports.*The*aim*of*the*present*posi'on*paper*is*to*provide*a*framework*for*this*dis'nc'on.*For*every*ECG*abnormality,*the*document*focuses*on*the*ensuing*clinical*workLup*required*for*differen'al*diagnosis*and*clinical*assessment.*When*appropriate*the*referral*op'ons*for*risk*stra'fica'on*and*cardiovascular*management*of*the*athlete*are*briefly*addressed.**********************************************************************************************************************Eur!Heart!J!!2010!
Inconclusive echo images (poor windows)
Unexplained ECG (deep T waves)
Visualises the antero-lateral wall
Diagnostic in apical HCM
Reveals myocardial fibrosis
CMR With Late Gadolinium Enhancement in Genotype Positive–Phenotype Negative Hypertrophic Cardiomyopathy Ethan J. Rowin et al., JACC, 2012 Ιn G+P- HCM patients, cardiac magnetic resonance (CMR) identified substantial late gadolinium enhancement (LGE) indicative of myocardial fibrosis (structural abnormality)
Cine and contrast-enhanced cardiac magnetic resonance (CMR) in a 44-year-old asymptomatic genotype-positive/phenotype-negative HCM woman with -tropomyosin mutation (TPM1 Asp175Asn), who underwent cardiovascular evaluation after the diagnosis of HCM in her 21 year-old son (Figure 2). (A) Cardiac magnetic resonance (CMR) end-diastolic short-axis and (B) 2-chamber views demonstrate normal left ventricle (LV) wall thicknesses (maximal wall dimension, 12 mm). (C to F) Contrast-enhanced CMR imaging views after intravenous injection of gadolinium showing extensive areas of late gadolinium enhancement (LGE), including involvement of the anterior (thin arrows) and posterior ventricular septum (thick arrows) on (C) apical and (D) mid-LV short axis images, anterior (thin arrows) and posterior (inferior) LV free wall (thick arrows) on (E) 2-chamber long-axis images and (F) posterior septum (arrows) on 4-chamber long-axis image; global ejection fraction and segmental LV wall motion were normal. LA left atrium; RA right atrium; RV right ventricle; VS ventricular septum.
HCM OR ATHLETE’S HEART?
Δηµοσιεύσεις
Metabolic
Parameters HCM
(n=27) Strength Athletes (n=19)
Endurance Athletes (n=20)
p-value
peakVO2% 77.7±12.2 73.9±6.7 136.4±11.5* <0.001
AT% 38.1±8.4 34.1±5.4 74.5±10.9* <0.001
pVO2(ml/kg/min) 33.4±6.8
31.5±2.7
58.1±4.6*
<0.001
AT (l/min) 1.2±0.3
1.1±0.2
2.5±0.4*
<0.001
O2P (ml/beat) 13.9±2.4 14.9±1.7 25.3±2.7* <0.001
ΔVO2/ΔWR (ml/min/W)
9.6±0.9 8.9±1.0 9.2±0.9 NS
VE/VCO2 slope 27.4±3.7 25.6±1.8 22.3±1.8* <0.001
Cardiopulmonary Exercise Testing Metabolic Parameters
Anastasakis A, Kotsiopoulou C, Rigopoulos A et al., Heart 2005; 91: 1477-8
CET Metabolic Parameter
Strength Athletes
peakVO2% 73.9±6.7
AT% 34.1±5.4
pVO2(ml/kg/min) 31.5±2.7
AT (l/min) 1.1±0.2
O2P (ml/beat) 14.9±1.7
ΔVO2/ΔWR (ml/min/W)
8.9±1.0
VE/VCO2 slope 25.6±1.8
Findings that reassure athlete’s heart (Sharma S et al., JACC 2000; 36(3):864)
1. Peak oxygen consumption (pVO2) > 45ml/
kg/min or > 10-20% above the predicted maximum value
2. Anaerobic threshold (ΑΤ) > 55% of the predicted peakVO2
3. Oxygen pulse (Ο2P) at peak exericse > 20 ml/beat
Anastasakis A, Kotsiopoulou C, Rigopoulos A et al., Heart 2005; 91: 1477-8
CET is an established method for d i f ferent ia l d iagnosis between patients with HCM and endurance athletes.
CET has severe limitations when assess ing strength athletes with athletic heart syndrome.
+ TYPE OF SPORT
STRENTH ATHLETES
Diagnosis is available (1-2 months)
False negatives
GENETIC INTERPRENTATION
COST APPROACHABLE
Differential Diagnosis on Hypertrophic Cardiomyopathy vs Athletic Heart Syndrome* * Athletes with abnormal ECG A.*Stage!A* Clinical!examinaEon*
History* Family*history* Physical*examina'on* ECG* ECHO!–!Doppler!–!TDI! Blood!and!urine!tests*
B.*
Stage!B* Holter!rhythm* Cardiopulmonary!exercise!tesEng* Exercise!ECHO* Clinical!evaluaEon!of!the!family!(Stage!A!or!B?)* Detraining?*
C.*
Stage!C* Detraining?*
Cardiac!MRI!–!LGE* GeneEcs!
CASE A
• ATHLETE SYNDROME OR SUBCLINICAL FORM
SUBCLINICAL CARDIOMYOPATHY OR ATHLETIC HEART SYNDROME
• ATHLETE FOOT BALL • Age 16 y old
• asymptomatic • o/e = unremarkable • Medical history (-)
• Family history (-)
MRI
Contrast echo
C/P EXERCISE TEST
ATHLETE
decoditioning
NO FAMILY HISTORY
OF SUDDEN DEATH OR HCM SO …CLINICAL EVALUATION OF THE FAMILY
Cor Angio : normal
Abn ECG
Abn ECG CHD – 48y
CHD 78y
IHD (+)
SD (-)
Athlete with abnormal ECG THE PUZZLE and the weight of evidence
• ASYMPTOMATIC • YOUNG • NORMAL ECHO • ABNORMAL ECG (+) • NORMAL HOLTER • NORMAL C/P EXERCISE TEST • NO FAMILY HISTORY OF HCM / SCD • CLINICAL FAMILY SCREENING (+) • DECODITIONING (?)
SUSPECTED HCM
HCM
Abn ECG
Abn ECG
CHD – 48y
CHD
78y
IHD (+)
SD (-)
CASE B
BLACK ATHLETE
• 25 y old • Asymptomatic • Clinical examination unremarkable • Abnormal ECG • Medical history = ICD for a while??????????
Physiology Pathology
Pathological Q waves
ST segment depression
Deep T wave inversions V5-
V6
Deep T wave inversions in contiguous inferior leads
Inverted T
waves in V1-V4
Voltage LVH
ST segment elevation
C/P EXERCISE TEST
FURTHER EVALUATION
• HOLTER rhythm 48 h =54 Ve”s • C/P exercise test = No arrhythmias • Normal BP response
BLACK ATHLETE WITH LVH THE PUZZLE and the weight of evidence
• Asymptomatic • Clinical exam :unremarkable • ECG inverted Τ waves • LVWmax :15mm • Diastolic function borderline for athlete • pVO2: 31,2 ml/kgr/min (75% predicted) • Few ventricular ectopics (holter 24 h) • Family history – NO SCD
HCM ?
E –MAIL… a never ending story
PEDIGREE
Aborted SD ICD
60Y
?
?
BLACK ATHLETE WITH LVH THE PUZZLE and the weight of evidence
• ECG inverted Τ waves • LVWmax :15mm • Diastolic function borderline for athlete • pVO2: 31,2 ml/kgr/min (75% predicted) • Family history of aborted sudden cardiac death
(brother). • Few ventricular ectopics (holter 24 h) • RACE IS AN IMPORTANT FACTOR BUT REMAINS A PART OF THE PUZZLE
HCM
Asymptomatic Athlete with T-wave inversion Management pathways
Scenario!A*DefiniEve!diagnosis!of!cardiac!disease!aUer!detailed!cardiac!evaluaEon*
Cessa'on*of*compe''ve*sports* Gene'c*tes'ng*for*family*management*
Scenario!B*V!Normal!cardiac!evaluaEon*V!No!family!history!of!inherited!cardiovascular!disease!or/and!sudden!cardiac!death*
Unrestricted*par'cipa'on*to*compe''ve*sports* Offer*gene'c*tes'ng?* Yearly*cardiac*evalua'on* Cardiac*evalua'on*of*first*degree*rela'ves*
Scenario!C*V!Mild!cardiac!abnormaliEes!(inconclusive!diagnosis)*V!No!family!history!of!inherited!cardiovascular!disease*
Unrestricted*par'cipa'on*to*compe''ve*sports* Offer*gene'c*tes'ng?* Yearly*cardiac*evalua'on* Cardiac*evalua'on*(ECG,*Echo)**of*first*degree*
rela'ves*(>10yrs)*Scenario!D*V!Mild!cardiac!abnormaliEes!(inconclusive!diagnosis)*V!Family!history!of!inherited!cardiovascular!disease*
Restricted*par'cipa'on*to*mild*or*moderate*compe''ve*sports*
Offer*gene'c*tes'ng* Yearly*cardiac*evalua'on* Cardiac*evalua'on*(ECG,*Echo)**of*first*degree*
rela'ves*(>10yrs)*
Athletic Heart Syndrome vs Hypertrophic Cardiomyopathy: Major – Minor criteria
Demographics* MAJOR! MINOR!
• **Family*History*of*Hypertrophic*Cardiomyopathy*(FHCM)*
• *Symptoms*
• *Female*gender* • *Family*History*of*Sudden*Cardiac*Death*(FHSCD)*• *Systolic*murmur*
ECG* MAJOR! MINOR!
• *Abnormal*Q*waves*in*at*least*2*leads*from*II,*III,*AvF*(in*absence*of*lec*anterior*hemiLblock)*or*V1LV4*or*I,*AvL,*V5,*V6*• *GNT*• *Nega've*T*waves**II,*III,*AVf,*V4*L*V6*or*I,*AvL,*V4LV6*
• *Nega've*T*waves*V1*–*V3*• *Deep*S*wave*V2*(>25mm)*• *Complete*BBB*or*interventricular*conduc'on*defect*in*LV*leads*
Structural!CharacterisEcs*
MAJOR! MINOR!
• *ASH*• *Complete*SAM*• *LVOT*gradient*>*50mmHg*• *LVEDD*<*45mm*• *LVH*>*13mm*in*the*anterior*septum*or*posterior*wall*• *LVH*>*15mm*in*the*posterior*septum*or*free*wall*
• LVH*of*12mm*in*the*anterior*septum*or*posterior*wall*• Incomplete*SAM*• ****LVOT*gradient*<*50mmHg*• LA*>*45mm*• LVW*S/P*>*1,4*• RVH*• Cardiac*MRI*gadolinium:*LGE*(+)*
Athletic Heart Syndrome vs Hypertrophic Cardiomyopathy: Major – Minor criteria
Diagnosis or Strong Suspicion: 2 major
1 major – 2 minor 4 minor
FuncEonal!CharacterisEcs* MAJOR MINOR Diastolic!FuncEon!(<20yrs)*• *E<A*• *Eα*<*9*cm/sec*
Diastolic!FuncEon!(<20yrs)!• *Eα*<*13*cm/sec*• *Exercise*Echo:*LVOT*gradient*• *3D*Echo:*Torsion*• *2D*speckle*trecking:*diastolic*radial*strain*<*7cm/sec**
Lab* MAJOR MINOR • *Cardiopulmonary*Exercise*Tes'ng:*VO2max*>*50ml/kg/min,*or*>*120%*predicted*VO2max*(only*for*endurance*athletes)**• *Increased*BNP*
Others* MAJOR MINOR • *3*months*Detraining:*No*response*• *Gene'cs:*Posi've*sarcomere*muta'on*
MESSAGE A ATHLETIC REMODELLING – • CAUCASIAN MEN • BLACK RACE INVERTED T WAVES • PART OF THE PROBLEM
IMAGING IS ESSENTIAL CURRENT APPROACH POLYPARAMETRIC
Adequate information for the athlete comes from the CLINICAL EVALUATION OF THE FAMILY
CET has severe limitations when assessing strength athletes with athletic heart syndrome.
RACE is a part of the puzzle
Distiquishing HCM from Athletic Heart is not just a story is an adventure
TYPE OF SPORT
MESSAGE B