Cerebral aneurysms

Aneurysm cerebral hlab ntsha yog ib tug pathological xeev yus muaj los ntawm cov yam ntxwv txhaum cai ntawm cov hlab ntsha mus rau daim ntawv nyob rau hauv lawv cov phab ntsa raws li extensions ntawm lub hnab. Feem ntau, qhov ua rau ntawm tus kab mob no yog ib tug congenital tsis meej los yog yam ntxwv abnormality. Tsis tshua cai nws tshwm sim vim poob plig los sis atherosclerosis.

Nyob rau tib lub txhaum tej zaum yuav nyob rau hauv ntau qhov chaw ntawm lub paj hlwb vascular network. Txawm li cas los, raws li ib tug txoj cai, lawv muaj nyob rau ntawm nws puag rau hauv lub cheeb tsam ntawm lub vajvoog ntawm Willis.

Nyob ntawm seb lub hom ntawm kev loj hlob yog distinguished thiab arteriovenous ntshav teeb meem.

Arteriovenous aneurysm cerebrovascular sawv cev raws li ib tug kauj ncua venous hlab ntsha. Qhov no hom ntawm kev ua txhaum cai yog tshwm sim los ntawm lub tsev lag luam ntawm ncaj qha kev sib txuas lus nruab nrab ntawm cov ntshav ntawm cov hlab ntsha, hlab ntsha thiab hloov khoom nruab nrog. Nws yog lub npe hu hais tias cov ntshav siab npaum li cas siab tshaj venous. Direct kev sib txuas lus nruab nrab ntawm cov hlab ntsha ua rau yus ncaws tawm ntawm cov ntshav los ntawm cov leeg mus rau hauv lub cov hlab ntsha, bypassing lub hlwb cov ntaub so ntswg. Thaum zoo li no tso tawm yog nrog los ntawm kev kub siab. Qhov no ua rau expansion ntawm lub venous phab ntsa. Cov ntaub ntawv ntawm cerebral aneurysms. Cov tsos mob tsim extensions xws li huab mob, zog tsiv siab thiab rhiab heev qaug dab peg. Raws li ib tug tshwm sim zuj zus siab tsis pub dhau lub expansion thiab thinning ntawm cov phab ntsa tsim sacciform extension yog nraus. Qhov no, nyob rau hauv lem, ua intracranial los ntshav, uas feem ntau xaus nyob rau hauv txoj kev tuag.

Arterial aneurysms ntawm cerebral hlab ntsha tshwm sim nyob rau hauv cov hlab ntsha thiab tej zaum yuav ib los yog ntau yam, me me thiab heev loj. Nyob ntawm seb lub hom flow yog nrog los ntawm txawv ces txhaum. Asymptomatic teeb meem yuav tsum nrhiav tau los ntawm lub caij nyoog. Unruptured aneurysms manifested txoj kev xav ntawm compression ntawm lub cranial qab haus huv thiab lub hlwb, mob mob taub hau. Nyob rau hauv tas li ntawd, tus kab mob yog nrog los ntawm ib tug ua txhaum ntawm tsis hnov tsw thiab tsis pom kev, qaug dab peg, cuam tshuam ntawm rhiab heev ntawm daim tawv nqaij thiab lub ntsej muag kab zauv.

Extension kis ua rau sab hauv los ntshav. Aneurysm rupture nrog los ntshav, tej zaum yuav tau rov qab. Nws yuav tsum tau muab sau tseg tias nyob rau hauv thawj cov ntaub ntawv phem tshwm sim kaum rau peb caug feem pua, thiab nyob rov so - tuag tus nqi tshaj li xya caum feem pua.

Nqa tawm diagnostic ntsuas yog pab tau thaum muaj cov ntaub ntawv ntawm intracranial los ntshav (nws rov). Nyob rau hauv lwm yam mob, rau lub hauv paus ntawm cov tsos mob mus nrhiav kom tau lub caij nyoog mob yog tsis tau aneurysm. Meej ntawm mob yog ua siv angiography. Ib tug diagnostic txoj kev tshawb no ntawm lub paj hlwb hlab ntsha qhia lub xub ntiag ntawm lub expansion, nws loj thiab qhov chaw. Raws li lwm yam (ntxiv) kev ntsuas siv computer (i) thiab magnetic resonance (MR) imaging.

Cerebral aneurysms. Kev Kho Mob.

Pom ntawm qhov mob ntawm kev kawm ntawv expansion yog ib tug ncaj qha hais rau cov kev kho mob ntawm kev phais kev cuam tshuam. Nyob rau hauv tej rooj plaub, kev phais yog tsis qhia kom txog rau thaum lub caij thaum cov aneurysm nce mus txog ib lub neej-hem neeg mob ntau thiab tsawg pab. Lub lag luam muaj peev xwm yuav nqa tawm nyob rau hauv ntau txoj kev. Nyob rau hauv ib co tshwj xeeb no, extension clip clamped thiab kaw li ntawm cov hlab uas nws yog tsim. Eliminates qhov no txoj kev pheej hmoo ntawm kev sib tawg thiab los ntshav. Nyob rau hauv lwm cov ntaub ntawv, tshem tawm ntawm lub cuam tshuam feem yog nqa tawm thiab hloov nws nrog ib tug prosthetic los yog nruab ib tug tshwj xeeb num rau nws (stent).