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Hiperparatiroidizam
Domina Petrić
Primarni hiperPTH
• Rijetka je bolest dječje dobi.
Uzroci su:
• hiperplazija
• ili adenom
paratiroidnih žlijezda
Klinička slika
• mučnina
• opstipacija
• bolovi u trbuhu
• gubitak težine
• glavobolje
• renalne kolike i bolovi u kostima (kod
odraslih)
MEN I
MEN IIa:
 10. kromosom
 HiperPTH
 Hiperkalcemija
 Medularni karcinom
 Povećani kalcitonin i
kateholamini
MEN IIb
 10. kromosom
 Mukozalni noduli
 Marfanoidni habitus
 Medularni karcinom
 Povećani kateholamini i kalcitonin
 11. kromosom
 Hiperparatireoidizam
 Hiperkalcemija
 Akromegalija
 Cushingov sindrom
 Galaktoreja
 Zollinger-Ellisonov
sindrom
Laboratorijski nalazi
• hiperkalcemija (čak do 6 mmol/L, tj.
25mg%)
• hipofosfatemija
• povišena ALP u serumu
• fosfaturija
• povećana količina cAMP u urinu
• PTH u serumu je povišen
Primarni
hiperPTH
Sekundarni Tercijarni
Serum Kalcij Povišen Normalan ili
snižen
Povišen
Fosfati Sniženi Povišeni Povišeni
ALP Povišena
ili
normalna
Povišena ili
normalna
Povišena
ili
normalna
Urin Kalcij Povišen Snižen
Fosfati Povišeni Sniženi
znakovi demineralizacije
i cistične promjene
Radiopaedia.org
Diferencijalna dijagnoza
• Normalna razina fosfata u plazmi.
• Pojačana gustoća kostiju (rtg).
HiperCa zbog
intoksikacije
vitaminom D
• Normalna razina fosfata u serumu.
• Lice kao u patuljka, mentalna
zaostalost i supravalvularna AS.
Idiopatska
hiperkalcemija
• Anamnestički podaci u dužoj
imobilizaciji.
Hiperkalcemija
zbog dugotrajne
imobilizacije
AS: aortna stenoza
Sekundarni hiperPTH
• Nastaje u kroničnim bolestima bubrega.
• Zbog hiperfosfatemije i smanjene
sinteze 1,25-(OH)2-D3 dolazi do hipoCa.
• Paratiroidne žlijezde reagiraju
pojačanom sekrecijom PTH i na taj
način održavaju normokalcemiju.
• Javlja se i kod rahitisa zbog nedostatka
vit. D te kod malapsorpcijskih sindroma
(smanjena apsorpcija Ca iz crijeva).
Sekundarni hiperPTH
Th.//
• vitamin D
• smanjenje unosa fosfata
u hrani
• povećan unos Ca u hrani
Literatura:
Duško Mardešić i
suradnici. Pedijatrija
Školska knjiga,
Zagreb, 2003.

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Hiperparatiroidizam

  • 2. Primarni hiperPTH • Rijetka je bolest dječje dobi. Uzroci su: • hiperplazija • ili adenom paratiroidnih žlijezda
  • 3. Klinička slika • mučnina • opstipacija • bolovi u trbuhu • gubitak težine • glavobolje • renalne kolike i bolovi u kostima (kod odraslih)
  • 4. MEN I MEN IIa:  10. kromosom  HiperPTH  Hiperkalcemija  Medularni karcinom  Povećani kalcitonin i kateholamini MEN IIb  10. kromosom  Mukozalni noduli  Marfanoidni habitus  Medularni karcinom  Povećani kateholamini i kalcitonin  11. kromosom  Hiperparatireoidizam  Hiperkalcemija  Akromegalija  Cushingov sindrom  Galaktoreja  Zollinger-Ellisonov sindrom
  • 5. Laboratorijski nalazi • hiperkalcemija (čak do 6 mmol/L, tj. 25mg%) • hipofosfatemija • povišena ALP u serumu • fosfaturija • povećana količina cAMP u urinu • PTH u serumu je povišen
  • 6. Primarni hiperPTH Sekundarni Tercijarni Serum Kalcij Povišen Normalan ili snižen Povišen Fosfati Sniženi Povišeni Povišeni ALP Povišena ili normalna Povišena ili normalna Povišena ili normalna Urin Kalcij Povišen Snižen Fosfati Povišeni Sniženi
  • 7. znakovi demineralizacije i cistične promjene Radiopaedia.org
  • 8. Diferencijalna dijagnoza • Normalna razina fosfata u plazmi. • Pojačana gustoća kostiju (rtg). HiperCa zbog intoksikacije vitaminom D • Normalna razina fosfata u serumu. • Lice kao u patuljka, mentalna zaostalost i supravalvularna AS. Idiopatska hiperkalcemija • Anamnestički podaci u dužoj imobilizaciji. Hiperkalcemija zbog dugotrajne imobilizacije AS: aortna stenoza
  • 9.
  • 10. Sekundarni hiperPTH • Nastaje u kroničnim bolestima bubrega. • Zbog hiperfosfatemije i smanjene sinteze 1,25-(OH)2-D3 dolazi do hipoCa. • Paratiroidne žlijezde reagiraju pojačanom sekrecijom PTH i na taj način održavaju normokalcemiju. • Javlja se i kod rahitisa zbog nedostatka vit. D te kod malapsorpcijskih sindroma (smanjena apsorpcija Ca iz crijeva).
  • 11. Sekundarni hiperPTH Th.// • vitamin D • smanjenje unosa fosfata u hrani • povećan unos Ca u hrani
  • 12. Literatura: Duško Mardešić i suradnici. Pedijatrija Školska knjiga, Zagreb, 2003.