1.Preoperative high-dose chemotherapy with peripheral blood stem cell support in breast cancer: report of 3 cases.
Jinhai TANG ; Xiaobo WANG ; Jianwei QIN ; Liangxi PAN ; Jianqiu WU ; Jifeng FENG ; Xiangsheng ZHAO ; Xiuli ZHENG ; Jirong ZHU ; Aidi DAI
Chinese Journal of Surgery 2002;40(11):803-806
OBJECTIVETo investigate the possibility and short-term effect of high dose chemotherapy with peripheral blood stem cell support in the preoperative therapy of breast cancer, and-its influence on the following operation and would healing.
METHODSThree patients with T(3)N(1)M(0) (III(a)), T(4)N(1)M(0) (III(b)), T(4)N(1)M(1) (IV) of breast cancer were diagnosed histopathologically. After receiving HDC/APBSCT, the 3 patients were operated on. HDC/APBSCT process included 2 cycles of FEC induction chemotherapy; PBSC mobilization, APBSC collection and cryopreservation and PBSC infusion; and high-dose chemotherapy, APBSC infusion and supportive therapy. The therapy consisted of CTX2.5 g/m(2), VP-16 600 mg/m(2), and cerboplatin 600 mg/m(2) delivered on day 1, APBSC infusion 48 h later, rhG-CSF (150 microg, BID) was administered 4 h after infusion of APBSC until WBC was higher than 10 x 10(9)/L. During HDC/APBSCT, the patients were protected in the air laminar flow room with supportive therapy of antibiotics, anti-virus and anti-fungus drugs. They left the air laminar flow room after their WBC was greater than 2 x 10(9)/L. Case 1 was treated by radical mastectomy, Case 2 by improved radical mastectomy, Case 3 by improved radical mastectomy and transplantation of skin for the large area.
RESULTSRapid recovery of bone marrow function was observed in all 3 patients. Operation was performed 4 weeks after HDC/PBSCT in Cases 1, 2 and 33 days in Case 3. No influence was seen on operative procedure and would healing, especially in Case 3 with a large area of skin transplantation. Two patients with stage III(a) and III(b) have been alive since the treatment for 30 months and the other with stage IV died of brain metastasis 16 months later.
CONCLUSIONSHDC/APBSCT as a preoperative therapy for breast cancer has no influence on the coming surgery and would healing, even on skin transplantation for a large area. It has a practical response in stage III(a) and III(b), but it is still controversial in stage IV. This method as a salvage therapy for patients with breast cancer of intemuediate or stage.
Adult ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Breast Neoplasms ; therapy ; Combined Modality Therapy ; Female ; Hematopoietic Stem Cell Transplantation ; Humans ; Mastectomy, Radical ; Middle Aged ; Neoplasm Staging ; Preoperative Care ; Salvage Therapy
2.Research progress on hemolysis of rotary blood pump
Teng JING ; Jianan CHENG ; Haoran SUN ; Aidi PAN
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2025;32(04):560-566
Hemolysis is one of the main complications associated with the use of ventricular assist devices. The primary factors influencing hemolysis include the shear stress and exposure time experienced by red blood cells. In addition, factors such as local negative pressure and temperature may also impact hemolysis. The different combinations of hemolysis prediction models and their empirical constants lead to significant variations in prediction results; compared to the power-law model, the OPO model better accounts for the complexity of turbulence. In terms of improving hemolytic performance, research has primarily focused on optimizing blood pump structures, such as adjustments to pump gaps, impellers, and guide vanes. A small number of scholars have studied hemolytic performance through control modes of blood pump speed and the selection of blood-compatible materials. This paper reviews the main factors influencing hemolysis, prediction methods, and improvement strategies for rotary blood pumps, which are currently the most widely used. It also discusses the limitations in current hemolysis research and provides an outlook on future research directions.