Standardized Technique & Complication Prevention Rau PTC Koob Hauv Percutaneous Transhepatic Cholangiography
Jul 06, 2026
https://admin1.seo.com.cn/CustomerAdmin/S_News/Create?ru=%2FCustomerAdmin%2FS_News%2F
Percutaneous Transhepatic Cholangiography (PTC)thiab tom qab ntawdPercutaneous Transhepatic Biliary Drainage (PTCD / PTBD)yog lub hauv paus tseem ceeb rau kev soj ntsuam thiab ua kom tsis txhob muaj kab mob jaundice thaum ERCP ua tsis tiav lossis ua tsis tau anatomically. Cov txheej txheem pib nrogCov kua tsib duct puncture siv 21G lossis 22G Chiba (PTC) koob.
Indications / contraindications
- Qhia:Sonographically paub tseeb intrahepatic duct (IHD) dilation nrog obstructive jaundice; ua tsis tiav / tsis tsim nyog ERCP (Billroth II, duodenal stenosis); ua ntej -op biliary decompression; txhais ntawm biliary anatomy ua ntej-resection
- Cov txheeb ze Contraindications: Uncorrected coagulopathy (INR >1.5, PLT < 50 × 10⁹/L), ascites loj heev, tswj tsis tau sepsis, iodine ua xua yam tsis muaj lwm txoj hauv kev, kawg- theem siab / lub raum tsis ua haujlwm
Khoom siv
21G lossis 22G Chiba koob (15-20 cm), tau tshaj 0.015 "(0.38 mm) micro-guidewire
5 mL syringe nrog 30% tsis yog -ionic iodinated contrast (piv txwv li, iohexol)
1% -2% lidocaine, sterile drapes, ultrasound sojntsuam nrog tsis muaj menyuam
Kauj Ruam -los ntawm - Kauj Ruam (Classic Right Hepatic Approach)
- Localization: Teb Chaws Asmeskas txheeb xyuas qhov chaw nyob sab nraud ntawm IHD ceg - nyiam txoj cai tom qab ntu; kos txoj cai nruab nrab- kab axillary ntawm 8th-9th intercostal qhov chaw (tsis txhob mus saum 7th tav → pneumothorax)
- Tshuaj loog:Aseptic npaj; lidocaine infiltrated rau daim siab capsule
- Txhaum: Tus neeg mob ua tsis taus pa- tuav ntawm lub sijhawm ntsiag to; Chiba koob qhianrog rau superior margin ntawm tav(tsis txhob cuam tshuam intercostal neurovascular pob) tsom mus rau sab xis ntawm T11-T12 vertebral lub cev, ~ 8-13 cm qhov tob
- Bile Aspiration:Thaum ncav cuag ~ 2-3 cm medial rau txoj cai vertebral pedicle, nres; tshem tawm cov stylet, txuas npliag syringe →maj mam thim thaum maj mam aspirating:
Golden/daj-ntsuab → duct nkag ✓
Tsis muaj kua tsib → txhaj me me ntawm qhov sib piv:
- Branching, non{0}}dispersing opacity=intraductal
- Mottled, sai dispersing=parenchymal khiav
- Ntxuav tam sim ntawd=vascular
- Reposition yog xav tau (feem ntau Tsawg dua los yog sib npaug rau 3-5 sim)
Cholangiography & Drainage: Txhaum qhov sib txawv, tau txais ntau- txoj haujlwm ua yeeb yaj kiab. Rau PTCD: ua ntej 0.015 "/ 0.018" micro-kev taw qhia los ntawm Chiba koob dhau stenosis → tshem tawm koob → sequentially dilate → qhov chaw 5F-8F pigtail ntws → paub meej txoj hauj lwm, kho, txuas rau lub hnab ntim khoom
Teeb meem & Tiv thaiv
|
Teeb meem |
Kev Tiv Thaiv / Kev Tswj Xyuas |
|---|---|
|
Bile leak / biloma |
Siv peripheral nplua duct rau thawj zaug puncture; paub meej tias txhua sab qhov intraductal tom qab tso dej tso |
|
Ntshav / hemobilia |
Kho coagulopathy ua ntej- txheej txheem; siv 21G-22G Chiba; tiag -time US kev taw qhia |
|
Cholangitis / sepsis |
Prophylactic broad-spectrum tshuaj tua kab mob (3rd-gen cephalosporin ± metronidazole) 24–48 h ua ntej- txheej txheem; tuav patency post-drain |
|
Pneumothorax / hemothorax |
Tsis txhob puncture saum 7th intercostal qhov chaw (mid-axillary); paub meej diaphragm/pleura txoj hauj lwm los ntawm US |
|
Tube dislodgement / occlusion |
Kev ruaj ntseg sutured fixation; yaug nrog saline ib ntus; hloov yog clogged |
Ncej -Txoj Kev Kho Mob
6 hnub; saib xyuas qhov tseem ceeb, mob plab, ua npaws
Txuas ntxiv tshuaj tua kab mob × 24–48 h; sau cov zis tso zis & kua tsib xim
Educate patient: report fever >38.5 degree, ua rau mob plab, ntshav ntws
Kev txawj ntse hauv Chiba koob PTC puncture yog lub hauv paus kev txawj ntse hauv kev cuam tshuam hluav taws xob. Niaj hnub nimno US/CT kev taw qhia ua tiav thawj zaug - kis tau cov kua tsib nkag hauv 85%–95% nrog rau cov teeb meem loj<3%. Standardized SOPs, simulation training, and properly stocked PTC needle inventories are essential for safe departmental PTCD services.
