AMYLOIDOSIS MONTH
5 Best Papers
Tips, Tricks & Thread
Diagnostic delays3 years from symptom onset
may be evaluated > 5 specialists prior to receiving the correct diagnosis
vast majority of cardiac amyloidosistransthyretin amyloidosis or light chain amyloidosis
“red flag”suspicion for this diagnosis
ECGvoltage QRS amplitude limb leads (≤0.5 mV), pseudo-infarct pattern & relativevoltage QRS (S wave in V1 + Rwave in V5 or V6 ≤15 mm) in the setting of LVH on #EchoFirst AV block
Echo concentric LVH, biatrial& small pericardial, apical sparing of LV strain
#whyCMR Diffuse, subendocardial LGE. T1 mapping techniques & measurement of extracellular volumes
#CVnuc TTR-CA91% sens & nearly 100% spec in the absencemonoclonal gammopathy
Majority of false testsLC cardiac amyloidosis, exclusionLC amyloidosis is critical
Several types of amyloidosis have been described based on the specific protein comprising the deposited fibrils
Uncommon for secondary (AA) amyloidosis
to affect& this is rarely seen inwhere severe chronic inflammatory processes are generally well managed
Clinical cardiac amyloidosisextracellular deposition of proteins which have folded & aggregated such that they form amyloid fibrils
Val122IIe mutation, an hATTR subtype, is highly aggressive & therefore necessitates unique therapeutic and follow up regimens
CyBorD Daratumumab works effectively
to produce responses in AL amyloidosis
Genetic testingcritical component of the evaluation
of transthyretin amyloidosis, determining prognosis & treatment
Val122Ile1st common mutation
Thr60Ala2nd most common mutation
Val30Met (pV50M)most commonmutation outside of the. Endemic in
TTR genetic testing is recommended for all patients
with an established diagnosis of ATTR-CA regardless
of age
Once a patient carrying a pathological TTR gene
variant is identified, the predicted age of disease
onset (PADO) should be determined
Recognizing a constellation of ATTR amyloidosis symptomssuspicion of amyloidosis early in its course
cardiac, neurologic, nephropathy or musculoskeletal manifestations
ATTR amyloidosismusculoskeletal manifestations 5 to 15 years prior to other symptoms
Carpal tunnel syndromeTrigger fingerLumbar spinal stenosis
trigger fingercarpal tunnel syndrome reportedfamily w/ATTRv
Rupture distal biceps tendon (Popeye sign)>50y
ATTR amyloidosis is now a treatable disease, recognizing the constellation signs & symptoms, including those that are neurologic & musculoskeletal
Early treatment will make a meaningful impact on a patient’s quality of life, autonomy, and physical function
Previously considered a rare disease, CA is increasingly recognized among patients:
misdiagnosed as undifferentiated HFPEF
paradoxical low-flow/low-gradient aortic stenosis
otherwise unexplained left ventricular hypertrophy
Basis for effective diagnostic & therapeutic
management of CA patientsearly recognition and
suspicion of possible cases based on clinical red flags,
cardiac imaging, and biomarkers
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