Analysis of Success Rate and Influencing Factors for Collecting Peripheral Blood Hematopoietic Stem Cells by Combination of CTX or E-CHOP Chemotherapy with Mobilization of G-CSF in Patients with Multiple Myeloma / 中国实验血液学杂志

<p><b>OBJECTIVE</b>To analyze the success rate and influencing factors for collecting peripheral blood hematopoietic stem cells (HSC) by combination of cyclophosphamide (CTX) or E-CHOP chemotherapy combined with granulocyte colony stimulating factor (G-CSF) in patients with multiple myeloma.</p><p><b>METHODS</b>The clinical data of 75 patients with multiple myeloma in our hospital were retrospectively analyzed. All patients received CTX or E-CHOP chemotherapy combined with G-CSF mobilization to collect HSC, and the success rate (CD34 cell numbers was at least 2×10/kg) and its influencing factors were statistically analyzed.</p><p><b>RESULTS</b>A total of 86 collections by mobilization were performed in 75 patients, with the average 3.22 (0.12-22.28)×10/kg of CD34 cells, and the success rate of 74.42%. Single factor analysis revealed that the course number of chemotherapy and disease status before the collection significantly correlated with the success rate of HSC collection (P<0.05), and sex, age, disease type, ISS stage and mobilization method showed no significant correlation with the collection success rate (P>0.05). Multivariate Logistic regression analysis showed that the course number of chemotherapy positively related with the success rate of HSC collection (OR=2.95, 95% CI: 1.60-5.41, P<0.01), and there was no significant correlation with the disease status before collection (OR=1.01, 95% CI: 0.88-1.16, P=0.89).</p><p><b>CONCLUSION</b>There are no significant effects of sex, disease type, ISS staging and mobilization methods on the success rate of HSC collection in patients with multiple myeloma, and the less course number of chemotherapy (<5) before collection show a higher success rate of HSC collection.</p>

Personal experience in pediatric emergency medicine training in Canada and China / 中华医学杂志(英文版)

Currently, pediatric emergency medicine (PEM) as practiced in many developed countries is different from ours in China. Chinese pediatric emergency medicine is just children's internal medicine and does not include general surgery, ear-nose-throat, etc. If children have an emergency condition that require specialized treatments they need to go to different departments. However in Canada, the pediatric emergency physicians will first treat the patients whatever the condition, then, if it is a complicated sub specialty problem, they will consult the specialist or let the patient see the specialist later. In addition, resuscitation is done in the pediatric intensive care unit (PICU) in China, but it is done in the emergency room in Canada. This article compares the differences in the pediatric emergency systems in Canada and China and also introduces the international standard system of pediatric triage.