Video: Dab tsi yog venous shunt?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Intrahepatic portosystemic kev kho mob cov leeg ntshav (IPSVSs) yog qhov tsis tshua muaj kab mob siab vascular malformations uas tej zaum yuav congenital los yog kis tau. Hauv hom 2 IPSVS, ib lossis ntau qhov kev sib txuas muaj nyob ntawm cov ceg ntoo sab hauv ntawm lub qhov rooj thiab cov leeg leeg hauv ib leeg ua haujlwm ntu.
Tsis tas li ntawd, qhov portal venous shunt yog dab tsi?
Hom kab mob siab tshaj plaws hauv lub cev portal venous shunt yog a portal ntshav kev sib txuas lus mus rau ib qho txheej txheem tshwj xeeb cov leeg (perihepatic leeg los yog lub vena cava qis dua) hauv tus neeg mob nrog portal ntshav hyper-tension tshwm sim los ntawm cirrhosis.
Tom qab ntawd, lo lus nug yog, dab tsi yog shunt hauv lub siab? Lub siab shunt : Transjugular, intrahepatic, portosystemic shunt (TIPS), yog a shunt (tube) muab tso rau nruab nrab ntawm cov hlab ntsha portal uas nqa ntshav los ntawm txoj hnyuv mus rau daim siab thiab cov hlab ntsha siab uas nqa ntshav los ntawm qhov daim siab rov qab los rau lub plawv. Muaj ob peb hom shunts uas muab tso rau phais.
Kuj tseem paub yog, dab tsi yog vascular shunts?
Arteriosystemic venous (AV) shunts yog kev sib txuas lus ntawm tus kab mob siab cov leeg thiab cov leeg ntshav. Cov no tuaj yeem pom hauv cev malformations xws li HHT, ntxiv rau hauv benign thiab malignant mob txhab nrog rau menyuam mos haemangioendothelioma, haemangioma thiab HCC [1].
Portosystemic shunt yog dab tsi?
A portosystemic swb (PSS) yog ib qho txawv txav ntawm lub portal vascular system thiab cov kab mob hauv lub cev. Qhov no txhais tau tias ib feem ntawm cov co toxins, cov protein thiab cov as -ham nqus los ntawm txoj hnyuv hla lub siab thiab tau muab ncaj qha ncaj qha mus rau hauv cov hlab ntsha.
Pom zoo:
Dab tsi yog venous channels?
Venus sinus, nyob rau hauv tib neeg lub cev, ib qho ntawm txoj hauv kev sib cais cov kab ke sib txuas sib txuas uas nyob nruab nrab ntawm cov txheej ntawm dura mater, txheej sab nrauv npog ntawm lub hlwb, thiab ua haujlwm kom sau cov ntshav tsis muaj ntshav. Tsis zoo li cov leeg, cov sinuses no tsis muaj lub tsho loj
Dab tsi yog central venous oxygen saturation?
SvO2 / ScvO2 (sib xyaw lossis central venous oxygen saturation) yog ib qho tseem ceeb tab sis feem ntau tsis to taub hemodynamic parameter. Tus nqi oxygen txaus nyob hauv cov hlab ntshav thaum nws nkag mus rau hauv lub txaj capillary raug xa mus rau qhov muaj peev xwm xa cov pa (DO2), vim kev rho tawm tseem tsis tau tshwm sim
Lub luag haujlwm ntawm venous system yog dab tsi?
Qhov tseem ceeb ntawm cov hlab ntshav Hauv qhov sib piv, cov hlab ntshav txoj haujlwm yog thauj cov ntshav deoxygenated los ntawm lub cev rov mus rau lub plawv thiab txij ntawd mus rau lub ntsws
Dab tsi yog qhov implanted venous access device?
Qhov chaw nkag mus rau cov leeg ntshav yog ib qho cuab yeej siv los muab kev kho mob thiab siv ntshav. Nws kuj tseem yuav raug hu ua central venous access device (CVAD). Qhov chaw nres nkoj yog ib lub thawv me me uas muab tso rau hauv qab koj cov tawv nqaij, feem ntau nyob rau hauv koj lub hauv siab. Ib qhov chaw nres nkoj tuaj yeem muab tso rau hauv koj txhais caj npab lossis lub plab
Dab tsi yog venous leg ulcer?
Cov tawv nqaij tawv nqaij yog mob rau ntawm koj txhais ceg uas qeeb heev los kho, feem ntau yog vim tsis muaj ntshav ncig hauv caj dab. Koj tuaj yeem hnov tus kws kho mob lossis tus kws saib xyuas neeg mob hu lawv "venous leg ulcers." Qee zaum lawv tuaj yeem ua rau muaj teeb meem hnyav dua yog tias koj tsis kho lawv