FASI DIACCRESCIMENTO - CONI
Transcript of FASI DIACCRESCIMENTO - CONI
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CORSO PER TECNICI “AmiConi”
ROBERTO GASTALDI
ENDOCRINOLOGIA PEDIATRICA
IRCCS GIANNINA GASLINI
LE FASI DI ACCRESCIMENTO
CORSO PER TECNICI “AmiConi”
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Il processo di crescita è la risultante
dell’interazione fra fattori intrinseci
(fisiologici) ed estrinseci (ambientali)
Ogni individuo è uguale a se stesso per
quanto riguarda tempi e modi di crescita e
sviluppo
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CRESCITA E SVILUPPO
Accrescimento: modificazioni quantitative (aumento della cellularità, accrescimento corporeo, anabolismo)anabolismo)
Sviluppo: modificazioni qualitative (funzionalità di organi ed apparati, morfologia corporea, modificazioni somatiche)
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CRESCITA
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SVILUPPO
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LA STATURA DEI GENITORI
INFLUENZA QUELLA DEI FIGLI
STATURA TARGET MASCHIO:
Statura Padre + (Statura Madre + 13) / 2 ± 8,5Statura Padre + (Statura Madre + 13) / 2 ± 8,5
STATURA TARGET FEMMINA:
Statura Madre + (Statura Padre -13) / 2 ± 8,5
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TARGET HEIGHT
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CRESCITA PRE-NATALE
• Periodo Pre-Embrionario
• Periodo Embrionario
• Periodo Fetale
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Patologie della Placenta (Insufficienza Placentare)
determinano una insufficiente crescita fetale (Ritardo
di Crescita Intrauterino)
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Peculiarità Auxologiche nell’ Infanzia
Prima Infanzia:
Il grasso corporeo tende ad aumentare fino ai 9 mesi
La crescita del tronco è prevalente su quella degli arti
Seconda e Terza Infanzia:
La crescita degli arti è superiore a quella del troncoLa crescita degli arti è superiore a quella del tronco
Il grasso corporeo aumenta molto lentamente fino ai
7 anni poi vi è un picco di crescita ponderale nel
periodo prepuberale
La crescita ponderale nel suo complesso procede
lentamente ma in modo progressivo
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Fattori Ormonali Importanti per la
Crescita durante l’Infanzia
• Ormone della crescita
• IGF 1
Insulina• Insulina
• Ormoni Tiroidei
• Calcitonina e Paratormone
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GH e IGF1
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PUBERTA’
• Comparsa caratteri sessuali secondari
• Scatto di crescita staturale• Scatto di crescita staturale
• Acquisizione capacità riproduttiva
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ETA’ D’INIZIO DELLA PUBERTA’
• Femmine: I primi segni di pubertà possono comparire ad un’età compresa fra 8 e 13 annifra 8 e 13 anni
• Maschi: I primi segni di pubertà possono comparire ad un’età compresa fra 9 e 14 anni.
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MODIFICAZIONI AUXOLOGICHE DURANTE LA PUBERTA’
FEMMINE MASCHI
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SCATTO DI CRESCITA STATURALE DURANTE LA PUBERTA’
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STESSA ETA’ ANAGRAFICA DIFFERENTE ETA’ OSSEA
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PUBERTA’ RITARDATA PUBERTA’ PRECOCE
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Le reali patologie della crescita
sono solo una piccola percentuale
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SPERANDO DI NON AVERVI RIDOTTI IN
QUESTO STATO, RINGRAZIO PER L’ATTENZIONE