Seb lub stent yuav tsum tau hloov thiab ntau npaum li cas nyob ntawm nws hom thiab lub hom phiaj ntawm kev cog qoob loo. ureteral stents feem ntau yuav tsum tau hloov lub sij hawm los yog tshem tawm, thaum lub vascular stents feem ntau yog nyob rau hauv qhov chaw rau lub neej thiab tsis tas yuav hloov niaj hnub.
ureteral stents: Yuav tsum tau hloov ib ntus lossis tshem tawm
ureteral stents (ob -J stents) feem ntau yog siv rau cov kua dej tom qab kev phais pob zeb lossis rau kev txhawb nqa ureteral strictures. Lub sij hawm indwelling ib txwm yog 1-3 lub hlis, nyob ntawm seb qhov xwm txheej tshwj xeeb:
Kev phais pob zeb yooj yim: Feem ntau raug tshem tawm tom qab 1-2 lub lis piam mus rau 4 lub lis piam, ib zaug ureteral edema tau ploj mus thiab patency tau rov qab los.
ureteral nruj los yog yas phais: Tej zaum yuav tsum tau indwelling rau 2-3 lub hlis kom ruaj khov kho ntawm lub lumen.
Malignant qog compression los yog ntev - lub sij hawm obstruction: Qee cov neeg mob yuav tsum tau ntev - lub sij hawm indwelling thiab lub sij hawm hloov, feem ntau txhua txhua 3-6 lub hlis, los tiv thaiv scaling, blockage, los yog kab mob.
Vascular Stents: Feem ntau tsis tas yuav hloov pauv
Thaum cog, vascular stents (xws li plawv thiab paj hlwb stents) feem ntau yog rau lub neej thiab tsis tas yuav hloov lub sijhawm:
Hlau Stents: Ua los ntawm corrosion-cov alloys resistant, lawv muaj peev xwm theoretically nyob hauv lub cev rau lub neej. Ntev npaum li cov hlab ntsha tseem qhib, lub stent yuav ua haujlwm ntxiv.
Biodegradable Stents: Siv nyob rau hauv cov neeg mob me me, lawv maj mam nqus los ntawm lub cev hauv 1-3 xyoos thiab tsis tas yuav raug tshem tawm.
Txawm li cas los xij, kev cuam tshuam ntxiv yuav tsim nyog nyob rau hauv cov xwm txheej hauv qab no:
Hauv -stent restenosis lossis thrombosis (feem ntau yog vim cov tshuaj tsis raug lossis tswj tsis tau cov kab mob hauv qab)
Re- txo qis ntawm cov hlab ntsha yuav tsum tau muab zais pa los yog rov- cog cov stent tshiab.
