Portosystemic Shunt
Juga dikenali sebagai: PSS, Congenital Portosystemic Shunt, Portocaval Shunt, Portoazygos Shunt
Ringkasnya
A portosystemic shunt (PSS) is an abnormal blood vessel that bypasses the liver, allowing toxins to build up in the bloodstream and causing neurological, digestive, and urinary issues in dogs and cats.
TL;DR. Salur abnormal memintas hati; toksin tidak ditapis → tanda neurologi, pencernaan dan kencing.
Shunt memesong darah toksik dari hati.
Apakah itu?
Darah portal ke peredaran sistemik tanpa melalui hati (kongenital atau diperolehi). Ensefalopati hepatik, kelewatan tumbesaran, kristal urat.
Punca dan faktor risiko
Kongenital (baka kecil sering ekstrahepatik; besar intrahepatik). Diperolehi akibat hipertensi portal.
Tanda yang perlu diperhatikan
- Tanda neurologi (utama) selepas makan
- Kelewatan tumbesaran, muntah, cirit
- Poliuria/polidipsia, kristal urat
- Hipersalivasi (kucing)
Menekan kepala ialah tanda neurologi biasa.
Diagnosis
Asid hempedu, ammonia, ultrasound Doppler, CT/angio; lab dan air kencing.
"Portosystemic shunts (PSS) are abnormal vessels that divert blood from the abdominal viscera to the heart, bypassing the hepatic sinusoids..."
Ultrasound membantu melihat salur abnormal dan hati.
Pilihan rawatan
Diet, laktulosa, antibiotik usus; pelemahan pembedahan jika boleh.
Prognosis
Baik selepas pembedahan berjaya pada kongenital sesuai; berjaga-jaga jika shunt diperolehi berbilang.
Pencegahan
Jangan biak yang terjejas; diagnosis awal tingkatkan hasil.
Bila hubungi doktor haiwan
Anak anjing lambat tumbuh atau tanda neuro selepas makan. Kecemasan jika sawan atau stupor.
Untuk baka tertentu
Yorkie, maltese, shih tzu dan toy; baka besar; juga kucing.
Sumber
- Current Techniques in Small Animal Surgery, 5th Edition, p. 352
- Internal Medicine, 5th Edition, p. 587, 610
- Small Animal Critical Care Medicine, 2nd Edition, p. 765
My highlights & notes
Tanda & simptom
Baka berisiko lebih tinggi
Cara didiagnosis
- Ammonia tolerance test
- Angiography
- Computed tomography
- Exploratory laparotomy
- Fasting and 2-hour postprandial bile acids
- Magnetic resonance angiography
- Mesenteric portography
- Protein C activity
- Scintigraphy
- Ultrasonography
Pendekatan rawatan
Rawatan mesti dipreskripsikan doktor haiwan berlesen. Dos khusus sengaja tidak dipaparkan.
Soalan lazim
What is Portosystemic Shunt?
A portosystemic shunt (PSS) is an abnormal blood vessel that bypasses the liver, allowing toxins to build up in the bloodstream and causing neurological, digestive, and urinary issues in dogs and cats.
What are the symptoms of Portosystemic Shunt?
Loss of appetite、Ataxia (wobbly, unsteady walking)、Behavioral changes、Low mood and dullness、Diarrhoea、Excessive drooling、Lethargy、Seizures
How is Portosystemic Shunt diagnosed?
Ammonia tolerance test、Angiography、Computed tomography、Exploratory laparotomy、Fasting and 2-hour postprandial bile acids、Magnetic resonance angiography
How is Portosystemic Shunt treated?
Rawatan mesti dipreskripsikan doktor haiwan berlesen. Dos khusus sengaja tidak dipaparkan.
Sumber
- Current Techniques in Small Animal Surgery, 5th Edition (VetBooks.ir) · p. 352
- Internal Medicine 5th · p. 610
- Current Techniques in Small Animal Surgery, 5th Edition (VetBooks.ir) · p. 352
- Small Animal Critical Care Medicine, 2nd Edition (VetBooks.ir) · p. 765
- Internal Medicine 5th · p. 587
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