Qee zaum, rau ntau yam laj thawj, tej zaum yuav muaj kev ua txhaum ntawm cov zis tawm ntawm lub ureter. Qhov no tuaj yeem tshwm sim vim kev hloov ntawm lub raum pob zeb, ntshav txhaws, thiab lwm yam.
Destination
Lub ureteral stent yog tsim los kho cov zis ntawm cov zis. Qhov no yog ib qho yooj yim khoov raj uas yuav muab tso rau hauv lub ureter. Nws pab tshem cov zis mus rau sab nraud ib puag ncig dhau lub zais zis. Lub ureteral stent tau muab tso rau qee yam kab mob raum thiab kev phais nyuaj.
Device
Qhov ntev ntawm stent ncav cuag 30 cm nrog lub raj txoj kab uas hla mus txog 6 mm. Txhawm rau kom cov urinary catheter kom ruaj ntseg, ib qho ntawm nws qhov kawg yog nruab nrog ib lub kauv, uas yog hu ua "pw's Tail". Cov cuab yeej tau nruab nrog cystoscope lossis ureteroscope. Lub ureteral stent yog ua los ntawm polyurethane los yog silicone. Nws nto yuav tsum du, nws yuav tsum tsis txhob raug tso zis, tsis npog nrog ntsev. Silicone tau ua pov thawj tias qhov zoo tshaj plaws tiv thaiv pob txha thiab ntsev encrustation, tab sis vim nws qhov kev hloov pauv siab, lub raj tsis yooj yim kho thiab tuav hauv txoj haujlwm. Txhawm rau txo qhov reactivity ntawm stent, nws raug khohydrogel txheej. Qhov no nce lub neej ntawm cov cuab yeej.
Qhov teeb meem tom qab tso stent
Cov neeg mob yws ntawm dysuria, tso zis ntau zaus, tsis xav tso zis, nocturia. Cov xwm txheej no tau pom ntau zaus tam sim ntawd tom qab kev teeb tsa ntawm lub catheter, qee zaum tau hais tawm. Txhawm rau kom tsis txhob tshem tawm cov stent, cov tshuaj antispasmodics tau sau tseg. Kev txo qis ntawm cov tsos mob tshwm sim tom qab ob peb hnub. Qee zaum cov neeg mob yws ntawm qhov mob ntawm sab thiab plab. Qhov ua rau mob ntawm sab yog reflux ntawm cov zis thaum tso zis. Ib qho kev txhim kho ureteral stent qee zaum ua rau muaj kab mob ntawm cov zis. Txhawm rau tiv thaiv cov teeb meem, cov tshuaj tua kab mob tau sau tseg, txawm hais tias nws tsis xav tau siv sijhawm ntev, vim tias cov kab mob resistant tuaj yeem tsim.
Kev tsiv teb tsaws chaw sib xws yog qhov teeb meem loj uas tshwm sim thaum lub stent luv heev muab tso nrog qhov zoo tshaj plaws twisting ntawm qhov kawg kawg lossis thaum lub calyx sab sauv raug mob los ntawm qhov kawg. Yog hais tias lub stent nyob rau hauv lub ureter ntev, fragmentation yuav tshwm sim.
Cov fragmented ureteral stent yuav tsum tau muab tshem tawm los ntawm ureteroscopy, cystoscopy los yog los ntawm daim tawv nqaij.
Daim ntawv thov
Lub ureteral stent yog siv los stent lub ureter nyob rau hauv lub xub ntiag ntawm obstructive lub raum, i.e. yog tias muaj teeb meem nrog cov zis tawm ntawm lub raum. Cov laj thawj tuaj yeem sib txawv - urological, tsis yog urological thiab iatrogenic. Rauurological muaj xws li urolithiasis, neoplasms nyob rau hauv lub ureter, prostate los yog zais zis, prostate adenoma, retroperitoneal fibrosis. Obstruction, uas tsis yog nyob rau hauv lub teb ntawm urology - compression thiab germination ntawm cov qog ntawm lwm yam localization nyob rau hauv lub ureters, ntau yam lymphomas thiab lymphadenopathy. Iatrogenic ua rau yog cov txheej txheem nplaum tom qab kev ua haujlwm uas tau ua rau ntawm lub plab hauv plab, nrog rau tom qab kev kho hluav taws xob.
