title: [Effects of intermittent and continuous thermochemotherapeutic intra artery infusion on adriamycin concentration in rabbit VX-2 tumor].
abstract: OBJECTIVE
  It has been proved that vital signs of organism can be influenced by heat infusion and the thermochemotherapy with Adriamycin (ADM) is more effective than the general chemotherapy in inhibiting extraneous rabbit VX-2 cells. Intermittent thermochemotherapeutic infusion and continuous thermochemotherapeutic infusion with ADM were performed respectively on the rabbits to evaluate the effectiveness and safety of intermittent thermochemotherapeutic intra artery infusion by comparing their respiration rate, heart rate, body temperature, and the ADM concentration in VX-2 carcinoma.
  
  
  METHODS
  VX-2 tumor models were established in the hind legs of 30 New Zealand rabbits, and then they were divided into three groups (10 in each group) randomly. 100 ml saline and ADM in room temperature were infused, 100 ml saline and ADM in 60 degrees C were intermittently infused, and 100 ml saline and ADM in 60 degrees C were continuously infused into the tumor nutrient arteries, which were confirmed by DSA, of the rabbits in each group respectively. During the infusion, the 43-45 degrees C lasting time of the tumor tissues in the two 60 degrees C infusion groups was measured. After the infusion,the respiratory rate,heart rate,body temperature,and the concentration of ADM within the tumors were determined.
  
  
  RESULTS
  The concentration of ADM was 7.115+/-2.180 microg/ml in the room temperature infusion group,17.213+/-1.657 microg/ml in the 60 degrees C continuous infusion group, and 16.545+/-3.426 microg/ml in the 60 degrees C intermittent infusion group. There was no significant difference between the 60 degrees C intermittent infusion group and the 60 degrees C continuous infusion group (P >0.05), while there was significant difference between the 60 degrees C intermittent infusion groups and the room temperature infusion group,so was between 60 degrees C continuous infusion groups and the room temperature group (P< 0.05). The 43-45 degrees C lasting time was 22.53+/-1.44 minutes in the continuous infusion group and 24.31+/-2.45 minutes in the intermittent infusion group. There was no significant difference between these two groups (P >0.05). There was no significant difference in the respiration rate, heart rate, and body temperature between the 60 degrees C intermittent infusion group and the room temperature infusion group (P >0.05).
  
  
  CONCLUSIONS
  Compared with continuous infusion, intermittent thermochemotherapy intra artery infusion is a more effective and safer interventional thermochemotherapy.
authors.affiliation: Department of Interventional Radiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710038, PR China. zhanghxtdjr@yahoo.com.cn
authors.forename: Hong-Xin
authors.initials: HX
authors.lastname: Zhang
authors.forename: Yan
authors.initials: Y
authors.lastname: Liu
authors.forename: Xian-Li
authors.initials: XL
authors.lastname: He
authors.forename: Yi-Yong
authors.initials: YY
authors.lastname: Liu
authors.forename: Wei
authors.initials: W
authors.lastname: Cao
authors.forename: Juan
authors.initials: J
authors.lastname: Wei
authors.forename: Dai-Hui
authors.initials: DH
authors.lastname: Ni
authors.forename: Wen-Xian
authors.initials: WX
authors.lastname: Li
authors.forename: Rui-Yang
authors.initials: RY
authors.lastname: Han
mesh_terms: D000818:Animals; D004317:Doxorubicin / Q000008:administration & dosage*; D006358:Hot Temperature / Q000627:therapeutic use*; D007261:Infusions, Intra-Arterial / Q000379:methods*; D009374:Neoplasms, Experimental / Q000188:drug therapy*; D011817:Rabbits
chemical_list: D004317:Doxorubicin