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Sonographic evaluation of vessel grafts in living donor liver transplantation recipients of the right lobe 被引量:2

Sonographic evaluation of vessel grafts in living donor liver transplantation recipients of the right lobe
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摘要 AIM: To evaluate the vessel grafts (VG) used to reconstruct the middle hepatic vein (MHV) tributaries with ultrasonography. METHODS: Twenty-four patients undergone living donor liver transplantation were enrolled in our study. MHV tributaries larger than 5 mm in diameter were reconstructed with interposition VG. Blood flow of the graft and interposition VG was checked by Doppler ultrasonography daily in the first 2 postoperative weeks and monthly followed up after discharge. The sensitivity of VG detected by ultrasonography was assessed using surgical records as references. Student's t test was used to compare the velocity of VG and occluded VG in chronic patents (〉 3 mo). RESULTS: Thirty-one VG were used to reconstruct the MHV tributaries. Ultrasonography identified 96.7% (30/31) of large MHV tributaries and 90.3% (28/31) of VG. The diameter of VG was 5.6 ± 0.8 mm and the velocity of VG was 19.7 ± 8.1 cm/s. Two VG (2/31, 6.5%) were occluded on the first postoperative day in one patient who suffered from persistent ascites and had a prolonged recovery of liver function. Twenty-six VG (26/31, 83.9%) were patent 2 wk after operation. Six (6/31, 19.4%) VG were patent over 3 mo after operation. Intrahepatic venous collaterals were detected in 29.2% (7/24) patients. The velocity of VG and occluded VG was 30.1 ± 5.6 cm/s, 16.5 ± 5.8 cm/s, respectively, in chronic patents. The difference between two groups was statistically significant (P 〈 0.001). CONCLUSION: Our results indicate that most VG are patent in the first postoperative week while only a small portion with a higher velocity remains patent after 3 mo. Intrahepatic venous collaterals can be observed in some patients after occlusion of VG. AIM:To evaluate the vessel grafts(VG) used to reconstruct the middle hepatic vein(MHV) tributaries with ultrasonography.METHODS:Twenty-four patients undergone living donor liver transplantation were enrolled in our study.MHV tributaries larger than 5 mm in diameter were reconstructed with interposition VG.Blood flow of the graft and interposition VG was checked by Doppler ultrasonography daily in the f irst 2 postoperative weeks and monthly followed up after discharge.The sensitivity of VG detected by ultrasonography was assessed using surgical records as references.Student's t test was used to compare the velocity of VG and occluded VG in chronic patents(> 3 mo).RESULTS:Thirty-one VG were used to reconstruct the MHV tributaries.Ultrasonography identif ied 96.7%(30/31) of large MHV tributaries and 90.3%(28/31) of VG.The diameter of VG was 5.6 ± 0.8 mm and the velocity of VG was 19.7 ± 8.1 cm/s.Two VG(2/31, 6.5%) were occluded on the f irst postoperative day in one patient who suffered from persistent ascites and had a prolonged recovery of liver function.Twenty-six VG(26/31, 83.9%) were patent 2 wk after operation.Six(6/31, 19.4%) VG were patent over 3 mo after operation.Intrahepatic venous collaterals were detected in 29.2%(7/24) patients.The velocity of VG andoccluded VG was 30.1 ± 5.6 cm/s, 16.5 ± 5.8 cm/s, respectively, in chronic patents.The difference between two groups was statistically signif icant(P < 0.001).CONCLUSION:Our results indicate that most VG are patent in the flrst postoperative week while only a small portion with a higher velocity remains patent after 3 mo.Intrahepatic venous collaterals can be observed in some patients after occlusion of VG.
出处 《World Journal of Gastroenterology》 SCIE CAS CSCD 2009年第28期3550-3554,共5页 世界胃肠病学杂志(英文版)
关键词 Living donor liver transplantation Ultrasound Vessel graft Venous collateral Middle hepaticvein 肝移植 超声评价 生活 血管
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