Transcatheter Arterial Embolization for Hepatic Arterial Injury Related to Percutaneous Transhepatic Portal Intervention.
OBJECTIVE
To assess the usefulness of transcatheter arterial embolization (TAE) for the hepatic arterial injury related to percutaneous transhepatic portal intervention (PTPI).


METHODS
Fifty-four patients, 32 males and 22 females with a median age of 68 years (range 43-82 years), underwent PTPI. The procedures consisted of 33 percutaneous transhepatic portal vein embolizations, 19 percutaneous transhepatic variceal embolizations, and 2 percutaneous transhepatic portal venous stent placements. Two patients with gastric varices underwent percutaneous transhepatic variceal embolization twice because of recurrence. Therefore, the total number of procedures was 56. Among them, hepatic arterial injury occurred in 6 PTPIs in 5 patients, and TAE was performed. We assessed technical success, complications related to TAE, and clinical outcome. Technical success was defined as the disappearance of findings due to hepatic arterial injury on digital subtraction angiography.


RESULTS
As hepatic arterial injuries, 4 extravasations and 2 arterioportal shunts developed. All TAEs were performed successfully. The technical success rate was 100 %. Complication of TAE occurred in 5 of 6 TAEs; 3 were focal liver infarction, not requiring further treatment, and 2 were biloma that required percutaneous drainage. Five TAEs in 4 patients were performed immediately after the PTPI, and these 4 patients were alive. However, one TAE was performed 10 h later, and the patient died due to multiple organ failure 2 months later although TAE was successful.


CONCLUSIONS
TAE is a useful treatment for hepatic arterial injury related to PTPI. However, it should be performed at an early stage.
Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601, Japan. mshimohira@gmail.com.
Masashi
M
Shimohira
Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601, Japan.
Takuya
T
Hashizume
Department of Radiology, Nagoya City West Medical Center, Nagoya, 462-8508, Japan.
Shigeru
S
Sasaki
Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601, Japan.
Kengo
K
Ohta
Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601, Japan.
Kazushi
K
Suzuki
Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601, Japan.
Motoo
M
Nakagawa
Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601, Japan.
Yoshiyuki
Y
Ozawa
Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601, Japan.
Keita
K
Sakurai
Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601, Japan.
Hiroko
H
Nishikawa
Department of Radiology, Nagoya City West Medical Center, Nagoya, 462-8508, Japan.
Masaki
M
Hara
Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601, Japan.
Yuta
Y
Shibamoto
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002404:Catheterization / Q000009:adverse effects*; D004621:Embolization, Therapeutic / Q000379:methods*; D005260:Female; D006499:Hepatic Artery / Q000293:injuries*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011169:Portal Vein; D016896:Treatment Outcome; D057772:Vascular System Injuries / Q000209:etiology / Q000628:therapy*
Bleeding; Complication; Embolization; Percutaneous transhepatic portal intervention