Hypothyroidism
Hypothyroidism
Även känd som: Canine hypothyroidism, Thyroid hormone deficiency
Kort sagt
Hypothyroidism is a common endocrine disorder in dogs caused by an underactive thyroid gland. It slows down metabolism, leading to weight gain, lethargy, and skin issues, but is highly manageable with daily thyroid hormone replacement therapy.
TL;DR. Vanlig, valbehandlad hormonbrist; daglig medicin aterstaller energi och pals.
Trotthet och matt pals misstas latt for aldrande.
Vad är det?
Thyroid underproduces T4/T3; metabolism slows. Mostly dogs (lymphocytic thyroiditis or idiopathic atrophy). Rare in cats; often iatrogenic after hyperthyroid treatment.
Orsaker och riskfaktorer
Primary gland damage common. Middle-aged dogs (often 2-6 y); genetic breeds may present earlier.
Tecken att bevaka
- Lethargy, weight gain, endocrine alopecia (common)
- Dull coat; pyoderma; hypercholesterolemia (common)
- Bradycardia; myxedema (occasional)
Rattsvans-alopeci ar ett klassiskt hudtecken.
Hur veterinärer diagnostiserar
TT4, free T4 by equilibrium dialysis, endogenous TSH, TGAA. Rule out euthyroid sick syndrome.
Full skoldkortelpanel bekraftar diagnosen.
Behandling
Lifelong Levothyroxine. Energy often improves in 1-2 weeks; coat over weeks to months. Retest T4 about 4-6 h post-pill.
Prognos
Excellent with correct dosing. Daily lifelong therapy required.
Prevention
No primary prevention. Breeders: TGAA/thyroid panel. Interpret sighthound/Nordic T4 ranges carefully.
När ska veterinären kontaktas
Check unexplained weight gain, chronic skin disease, persistent lethargy. Emergency myxedema coma: stupor, collapse, hypothermia, dyspnea.
Källor
- Veterinary Internal Medicine, pp. 774, 775, 779, 786, 788.
My highlights & notes
Tecken & symptom
Raser med högre risk
Hur det diagnostiseras
- Baseline serum free T4 (fT4) concentration by equilibrium dialysis
- Baseline serum total T4 (TT4) concentration
- Complete Blood Count (CBC)
- Endogenous thyroid-stimulating hormone (TSH) assay
- Serum Biochemistry Panel
- Thyroglobulin autoantibody (TGAA) assay
Behandlingsmetoder
Behandling måste ordineras av legitimerad veterinär. Specifika doser visas medvetet inte.
Vanliga frågor
What is Hypothyroidism?
Hypothyroidism is a common endocrine disorder in dogs caused by an underactive thyroid gland. It slows down metabolism, leading to weight gain, lethargy, and skin issues, but is highly manageable with daily thyroid hormone replacement therapy.
What are the symptoms of Hypothyroidism?
Dull, dry haircoat、Endocrine alopecia、Hypercholesterolemia、Lethargy、Nonregenerative anemia、Pyoderma、Weight gain、Tiring easily during activity
How is Hypothyroidism diagnosed?
Baseline serum free T4 (fT4) concentration by equilibrium dialysis、Baseline serum total T4 (TT4) concentration、Complete Blood Count (CBC)、Endogenous thyroid-stimulating hormone (TSH) assay、Serum Biochemistry Panel、Thyroglobulin autoantibody (TGAA) assay
How is Hypothyroidism treated?
Behandling måste ordineras av legitimerad veterinär. Specifika doser visas medvetet inte.
Källor
- Internal Medicine 5th · p. 774
- Internal Medicine 5th · p. 788
- Internal Medicine 5th · p. 775
- Internal Medicine 5th · p. 779
- Internal Medicine 5th · p. 786
Artikeln är allmän information och ersätter inte veterinärråd. Om djuret mår dåligt, kontakta veterinär.
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