Ua ʻike anei ʻoe e pili ana i kēia apo pale i loko o ka lolo? (Circle of Willis)

Ua noʻonoʻo paha ʻoe i ke ʻano paʻakikī a kupaianaha o ko kākou lolo? I mea e hana pono ai ka lolo, pono ia i ka lako mau o ke koko maʻemaʻe a waiwai i ka oxygen. No laila, no ka hana pono ʻana i kēia hana, he ʻōnaehana palekana kupaianaha ko ka lolo. Ua like ia me kahi pōʻai nui ma waenakonu o ke kūlanakauhale, e kōkua ana iā ʻoe e hele i kekahi alanui ʻē aʻe inā he kaʻa. I kēia lā, ke kamaʻilio nei mākou e pili ana i kēia ʻōnaehana palekana kupaianaha.

He aha ka Pōʻai o Willis?

I ka ʻōlelo maʻalahi, ʻo ka Circle of Willis (CoW) he ʻano apo i hana ʻia e nā kīʻaha koko (arteries) i loaʻa ma ke kumu o ko kākou lolo, ʻo ia hoʻi, ma lalo. He ʻano like kona me ka pentagram. ʻO kēia ka hui ʻana e hoʻopili ai i nā kīʻaha koko nui ʻelua e hoʻolako ana i ke koko i ko kākou lolo. E noʻonoʻo he ʻelua mau kīʻaha koko nui e lawe mai ana i ke koko i ko kākou lolo. 1. Internal Carotid Artery: ʻO kēia ke ala e hoʻolako ai i ka hapa nui o ke koko i mua o ka lolo. 2. Vertebral Artery: ʻO kēia ke ala e hoʻolako ai i ke koko i ke kua o ka lolo. No laila, hui pū kēia mau kīʻaha nui ʻelua ma kahi pōʻai i kapa ʻia ʻo Circle of Willis. Ma muli o kēia, inā he mea keʻakeʻa a i ʻole ka paʻa ʻana i kekahi kīʻaha, hiki ke hoʻouna ʻia ke koko i kahi e pono ai ma o kekahi kīʻaha. Ua like kēia me kahi ʻōnaehana 'fail-safe' kūlohelohe no ka palekana o ko kākou lolo. Ua kapa ʻia ʻo "Ring of Willis" no ka hoʻohanohano ʻana i ka anatomist Thomas Willis, nāna i ʻike nui e pili ana i kēia ʻano kupaianaha.

Loaʻa i nā kānaka a pau kēia apo?

Eia ka mea kupaianaha. Wahi a nā kānaka noiʻi, ʻaʻole i hiki i ka hapalua o ka heluna kanaka ke loaʻa kahi apo piha o Willis . ʻO ia hoʻi, ʻo ka hapa nui o ka poʻe he mau ʻokoʻa liʻiliʻi paha, a i ʻole nā ​​hemahema, i loko o kēia apo. He hānau ʻia kēlā mau ʻokoʻa. He mau loli kūlohelohe kēia e kū mai ana i ka wā e hana ʻia ai ko kākou mau kīʻaha koko i loko o ka ʻōpū. ʻAʻole kēia he maʻi a ʻaʻole hoʻi he kīnā. Akā, eia ka mea. Inā loaʻa i kekahi me kahi annulus piha ʻole kahi maʻi e pili ana i nā kīʻaha koko i loko o ka lolo, e like me ka hahau ʻana , ʻoi aku ka nui o nā hopena. No ka mea, ʻaʻole hana pono kēlā 'ala ʻē aʻe' a i ʻole 'detour' a mākou i kamaʻilio ai. ʻAʻole kēia he mea hiki iā mākou ke hoʻololi, penei ke kūkulu ʻia ʻana o ko mākou kino.

He aha ke koʻikoʻi maoli o ke Apo o Willis?

ʻO ke ala maikaʻi loa e hoʻomaopopo ai i kēia, ʻo ia ke wehewehe pono i ka laʻana o ke kaʻa puni i ʻōlelo ʻia ma mua. E noʻonoʻo i kahi puni nui e like me ka mea ma ka Hale Hōʻikeʻike ʻo Colombo. Hoʻohui ia i kekahi mau alanui nui. I kēia manawa e noʻonoʻo aia kahi ulia nui ma kekahi o nā alanui nui a ua ālai loa ʻia ke alanui. He aha ka mea e hana ʻia? Hiki i nā kaʻa e hele mai ana mai nā alanui ʻē aʻe ke hoʻohana i kēia puni, e pale ana i ke alanui i ālai ʻia a hiki i ko lākou wahi i manaʻo ʻia. Hana pololei ke Apo o Willis i kēia . Inā ua ālai ʻia a hōʻino ʻia paha kahi kīʻaha koko nui e lawe ana i ke koko i ka lolo, inā he Apo piha o Willis, hiki i ke koko e hele mai ana mai kēlā ʻaoʻao ke hele ma o kēia apo a hoʻolako i ke koko i ka ʻāpana o ka lolo i nele i ke koko. Pale kēia i ka pōʻino nui i ka hapa nui o nā hihia. ʻO ka loaʻa ʻana o kahi Apo piha o Willis hiki ke pale iā ʻoe mai nā hopena koʻikoʻi o nā kūlana aʻe:

He aha nā manawa kūpono e haʻi aku ai ke kauka iā ʻoe e pili ana i kēia?

ʻO ka maʻamau, ʻaʻole loa e ʻike ka hapa nui o ka poʻe he apo o Willis ko lākou a hiki i ka wā e ʻike ʻia ai lākou. Eia nō naʻe, i kekahi mau hihia, e haʻi aku paha kāu kauka iā ʻoe e pili ana i ia mea.

• Inā loaʻa iā ʻoe kahi aneurysm lolo: Ma kahi o 85% o nā aneurysms lolo e hana ʻia ma ke apo o Willis.
• Inā loaʻa iā ʻoe kahi hahau : Hiki ke hana ʻia kahi hahau e kahi poloka a i ʻole ke kahe ʻana o ke koko i loko o kahi kīʻaha koko ma ke apo o Willis.
• Inā loaʻa iā ʻoe ka maʻi Moyamoya: He maʻi laha ʻole kēia e hoʻoemi mālie ai a ālai ʻia ai nā kīʻaha koko ma ke apo o Willis.
• Inā pono ke ʻoki kino ma ke kumu o ka lolo: No ka laʻana, i ka wā e hana ai i ke ʻoki kino ma kahi aneurysm a i ʻole kahi puʻupuʻu pituitary gland, he mea nui loa ia e pale aku i ka hōʻino ʻana i ke apo o Willis.
• Inā loaʻa iā ʻoe kahi scan lolo : Inā loaʻa iā ʻoe kahi hoʻokolohua kūikawā, e like me ka MRI o ka lolo a i ʻole ka angiogram cerebral, hiki i ka hōʻike ke komo pū me ka ʻike e pili ana i ke ʻano o kāu Ring of Willis.

He aha kā mākou e hana ai e mālama i ke olakino o ke Apo o Willis?

E like me kā mākou i kūkākūkā ai ma mua, ʻaʻole hiki iā mākou ke hoʻololi i ke ʻano o ke Apo o Willis. He mea ia e kū nei i ka wā hānau. Eia nō naʻe, he nui nā mea hiki iā mākou ke hana e mālama i nā kīʻaha koko i loko o kēlā apo i olakino a ʻaʻohe mea e ālai ʻia. I ka ʻōlelo maʻalahi, pono mākou e kāohi i nā mea pilikia e hōʻino ai i nā kīʻaha koko i loko o ka lolo. E nānā kākou i kēia mau mea pilikia. ʻO ka kāohi ʻana i kēia mau mea ʻaʻole wale no kou Apo o Willis, akā no kou kino holoʻokoʻa, ʻoi aku hoʻi kou puʻuwai. ʻO ka mea maikaʻi loa e hana ai, ʻo ia ke kamaʻilio me kāu kauka ʻohana e pili ana i kēia mau pilikia a hoʻololi i kou nohona e kūpono iā ʻoe. Pōʻai o Willis, ka lako koko i ka lolo, ka hahau ʻana, ka aneurysm o ka lolo, nā kīʻaha koko i loko o ka lolo, ke ʻano o ka lolo, ke anatomy ma ka sinhala