Aortic Thromboembolism
Systemic arterial thromboembolism
Také známé jako: FATE, Feline Aortic Thromboembolism, Saddle Thrombus, Saddle Embolus, Systemic Arterial Thromboembolism
Stručně
Aortic thromboembolism, or saddle thrombus, is a sudden, life-threatening emergency in dogs and cats where a blood clot blocks blood flow to the hind limbs. This guide explains the causes, critical warning signs, diagnostic process, and intensive treatment options for this severe cardiovascular condition.
TL;DR. Sedlový trombus: náhlá nouze blokující průtok do pánevních končetin; extrémní bolest a obrna.
Trombus sedí na trifurkaci aorty.
Co to je?
Saddle thrombus: cardiac embolus lodges at the aortic trifurcation, cutting hind-limb flow. Ischemia leads to rhabdomyolysis, nerve injury, paresis/paralysis, and extreme pain.
Příčiny a rizikové faktory
Cat: usually HCM with enlarged left atrium. Dog: hypercoagulable states (Cushing, protein-losing nephropathy, IMHA, neoplasia, sepsis, pancreatitis, etc.).
Známky, na které dávat pozor
- Severe pain, hind paresis/paralysis, absent femoral pulses (cardinal)
- Cold limbs, pale/cyanotic pads, tachypnea, hypothermia (common)
- Muscle contracture, murmur/arrhythmia (occasional)
Bledé nebo namodralé polštářky a studené tlapky jsou klasické.
Jak veterináři diagnostikují
Clinical five Ps (pain, paresis, pulselessness, pallor, poikilothermia). Echocardiography, abdominal ultrasound/Doppler, thoracic radiographs before diuretics, CK/AST, TEG if available.
Echo ukáže zvětšení síně a často trombus nebo kouř.
Možnosti léčby
Opioid analgesia. Anticoagulation: heparin, LMWH; long-term clopidogrel, sometimes aspirin. Oxygen; cautious fluids. Monitor reperfusion injury (hyperkalemia).
Prognóza
Poor: high acute mortality/euthanasia; recurrences common.
Prevence
Early cardiac screening; clopidogrel if marked LA enlargement. Treat underlying disease in dogs.
Kdy volat veterináře
Category-5 emergency: sudden hind-limb paralysis, crying in pain, cold pale paws, severe dyspnea.
Zdroje
- Small Animal Critical Care Medicine, 2nd Edition, p. 253
- Textbook of Veterinary Internal Medicine, 5th Edition, pp. 235, 236, 244
My highlights & notes
Příznaky a projevy
Plemena s vyšším rizikem
Jak se diagnostikuje
- Abdominal Ultrasonography
- Angiography
- Doppler studies
- Echocardiography
- Measurement of muscle enzymes
- Thoracic radiography
- Thromboelastography
Přístupy k léčbě
Léčbu musí předepsat licencovaný veterinář. Konkrétní dávky záměrně neuvažujeme.
Časté otázky
What is Aortic Thromboembolism?
Aortic thromboembolism, or saddle thrombus, is a sudden, life-threatening emergency in dogs and cats where a blood clot blocks blood flow to the hind limbs. This guide explains the causes, critical warning signs, diagnostic process, and intensive treatment options for this severe cardiovascular condition.
What are the symptoms of Aortic Thromboembolism?
Absent arterial pulse、Acute limb paresis、Pain、Posterior paresis、Azotemia (high kidney waste in the blood)、Cool distal limbs、Cyanotic nailbeds、Difficulty breathing (dyspnea)
How is Aortic Thromboembolism diagnosed?
Abdominal Ultrasonography、Angiography、Doppler studies、Echocardiography、Measurement of muscle enzymes、Thoracic radiography
How is Aortic Thromboembolism treated?
Léčbu musí předepsat licencovaný veterinář. Konkrétní dávky záměrně neuvažujeme.
Zdroje
- Small Animal Critical Care Medicine, 2nd Edition (VetBooks.ir) · p. 253
- Internal Medicine 5th · p. 236
- Internal Medicine 5th · p. 244
- Internal Medicine 5th · p. 235
- Internal Medicine 5th · p. 236
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