TY - JOUR
T1 - Predictive factor for intraoperative tumor rupture of Wilms tumor
AU - Fukuzawa, Hiroaki
AU - Shiima, Yuko
AU - Mishima, Yasuhiko
AU - Sekine, Sachi
AU - Miura, Shizu
AU - Yabe, Kiyoaki
AU - Yamaki, Satoshi
AU - Morita, Keiichi
AU - Okata, Yuichi
AU - Hisamatsu, Chieko
AU - Nakao, Makoto
AU - Yokoi, Akiko
AU - Maeda, Kosaku
AU - Kosaka, Yoshiyuki
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Purpose: For Wilms tumor, intraoperative tumor rupture with wide tumor spillage during surgical manipulation raises the classification to stage 3. Then, postoperative chemotherapy must be more intensive, and abdominal radiotherapy is added. Therefore, intraoperative tumor rupture should be avoided if possible. However, predictive factors for intraoperative tumor rupture have not been sufficiently described. Here we examined the risk factors for intraoperative tumor rupture. Methods: Patients with Wilms tumor who underwent treatment according to the National Wilms Tumor Study or the Japanese Wilms Tumor Study protocol at our institution were reviewed retrospectively. Collected cases were categorized into two groups: the ruptured group and the non-ruptured group. Risk factors for intraoperative tumor rupture, including the ratio of the tumor area to the abdominal area in a preoperative single horizontal computed tomography slice (T/A ratio), were investigated in both groups. Results: The two groups were not different in age, body weight, tumor laterality, sex, or histological distribution. The T/A ratio in the ruptured group was significantly higher than that in the non-ruptured group. Receiver operating characteristic curve analysis identified a discriminative value for a T/A ratio >0.5. Conclusion: The T/A ratio can be a predictive factor for intraoperative tumor rupture of Wilms tumor.
AB - Purpose: For Wilms tumor, intraoperative tumor rupture with wide tumor spillage during surgical manipulation raises the classification to stage 3. Then, postoperative chemotherapy must be more intensive, and abdominal radiotherapy is added. Therefore, intraoperative tumor rupture should be avoided if possible. However, predictive factors for intraoperative tumor rupture have not been sufficiently described. Here we examined the risk factors for intraoperative tumor rupture. Methods: Patients with Wilms tumor who underwent treatment according to the National Wilms Tumor Study or the Japanese Wilms Tumor Study protocol at our institution were reviewed retrospectively. Collected cases were categorized into two groups: the ruptured group and the non-ruptured group. Risk factors for intraoperative tumor rupture, including the ratio of the tumor area to the abdominal area in a preoperative single horizontal computed tomography slice (T/A ratio), were investigated in both groups. Results: The two groups were not different in age, body weight, tumor laterality, sex, or histological distribution. The T/A ratio in the ruptured group was significantly higher than that in the non-ruptured group. Receiver operating characteristic curve analysis identified a discriminative value for a T/A ratio >0.5. Conclusion: The T/A ratio can be a predictive factor for intraoperative tumor rupture of Wilms tumor.
KW - Nephroblastoma
KW - Risk factor
KW - Rupture
KW - Wilms tumor
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U2 - 10.1007/s00383-016-4000-4
DO - 10.1007/s00383-016-4000-4
M3 - Article
C2 - 27803953
AN - SCOPUS:84994065457
VL - 33
SP - 91
EP - 95
JO - Pediatric Surgery International
JF - Pediatric Surgery International
SN - 0179-0358
IS - 1
ER -