Objective:To evaluate the characteristics and the treatment of nonunion cases of mandibular fractures. Methods:24 patients with 28 sites of nonunion of mandibular fracture were retrospectively investigated. The involvement came from the group of 1087 cases who were treated from 1990 to 2004 in Department of Oral and Maxillofacial, Peking University School of Stomatology. The data were recorded and analyzed. Results:The nonunion rate was 2.2% in present study. Furthermore, mental region and mandibular body were the most common sites of nonunion fracture. 11 patients caused by inadequate fixture were treated only by improving fixation and 9 out of 10 patients in whose nonunion was caused by fracture bone defect were treated by bone grafting. On the other hand, 2 out of 3 patients of nonunion caused by bone infection were treated by curetting the inflammation lesion and bone grafting. 23 patients all healed after 3-6 months postoperatively except 1 patient. Conclusion:The incidence of nonunion is lower than those reported by other researchers outside China. Inadequate fixture, fracture bone defect and bone infection are three causes contributing to nonunion of mandibular fractures. The treatment for nonunion includes improving fixture, curetting the inflammation lesion and bone grafting.

AIM: To study the effects of Huoxue Huayu and Yiqi Wenyang compound prescription (composition; ginseng, radix astragali, plantaginis semen, lignum sappan, chuanxiong, salvia miltiorrhiza, radix aconiti lateralis preparata, bitter orange, cassia twig) of TCM on the congestive heart failure in rats. METHODS:The rats were given doxorubicin hydrochloride by intraperitoneal injection to establish the model of congestive heart failure and were randomly divided into control group, congestive heart failure model group, Xinbao treatment group ( XB treatment) and Huoxue Huayu and Yiqi Wenyang compound prescription treatment group (QXYTM treatment). Normal saline, liquid medicine Xinbao and liquid medicine Huoxue Huayu and Yiqi Wenyang compound prescription were administered respectively to four groups by gavage. Radioimmunoassay, semi - quantitative RT - PCR and flow cytometry methods were used to determine the expressions of plasma atrial natriuretic peptide ( ANP) , renal medulla aquaporin - 2 ( AQP2 ) and heat shock protein70 (HSP70) in congestive heart failure rats before and after treatment. RESULTS: In congestive heart failure rats treated with Huoxue Huayu and Yiqi Wenyang compound prescription, the cardiac output and left ventricle systolic pressure increased significantly, the left ventricular end diastolic pressure decreased, and the maximum ascending and declining rate of left ventricular pressure ameliorated, thus the hemodynamics was effectively improved. Meanwhile, the level of plasma cardionatrin decreased, the abnormal expression of renal medulla AQP2 was markedly restored, and the transcription and expression of HSP70 gene were also increased. CONCLUSION: Huoxue Huayu and Yiqi Wenyang compound prescription promotes the recovery of the pathogenetic conditions of congestive heart failure in rare. The mechanism may be in association with a decrease in plasma ANP level, correction of renal medulla AQP2 abnormal expression and enhancement of HSP70 expression.

Objective To evaluate intraoporative ultrasonography (IOUS) of liver tumors. Methods In this study, 45 patients with liver tumors were examined by the IOUS(Logiq 500 scanner with a dedicated 5 ～ 7.5 MHz linear-array intraoperative transducer), and the results of IOUS were compared with those of preoperative ultrasonography (PHILIPS HDI 5000 scanner with a 3.5 ～ 5 MHz convex-array transducer) and computed tomography (CT). Results For tumors with a diameter ≥ 1 cm, the detection rate of IOUS was 100%, which was higher than that of preoperative ultrasonography and CT (100% vs 89.80% and 97.96%), though there was no statistical significance(xc2 = 3.372 ,P >0.05 and Fisher exact probability was 1.00) ; For tumors with a diameter < 1 cm, IOUS had a significantly higher detection rate than preoperative uhrasonography and CT(90.70% vs 62.79% and 74.42%, respectively,the former x2= 9.382, the latter x2 = 3.957, both P < 0.05) ;The total detection rate of IOUS was significantly higher than that of preoperative ultrasonography and CT (95.65% vs 77.17% and 86. 96%, respectively, the former x2 = 13.378, the latter x2 = 4.381, both P < 0.05). All the detected lesions underwent surgical resection or intratumoral injection of ethanol with the guidance of IOUS. Conclusions Compared with preoperative imaging examination, IOUS not only can enhance the detection rates of preoperatively overlooked lesions, but also can provide more valuable information to guide the surgical procedures.

Objective To explore and analyze the influencing factors of family caregiving behavior and protective strategies in children with recurrent lower respiratory tract infection. Methods By reviewing the literature, a self-designed questionnaire for family caregiving behavior related to recurrent lower respiratory tract infection were adopted, including feeding behavior, hand hygiene, environmental factors, time of outdoor activities and family health-seeking behavior. Totally 206 cases with recurrent lower respiratory tract infection (the study group) and 206 cases with acute lower respiratory tract infection (the control group) were included and all cases were investigated by family caregiving behavior questionnaire. The influencing factors of family caregiving behavior of two groups were analyzed and compared. Results The feeding behavior in the study group was worse than that in the control group(χ2=5.14-14.76, P<0.05). There were significant differences in family health-seeking behavior (χ2=4.76, P=0.03), 49.50%(102/206) in the control group,38.8%(80/206)in the study group and passive smoking (χ2=5.70, P=0.02) between two groups. There was no significant difference between two groups in hand hygiene, time of outdoor activities, history of contacting with patients with respiratory tract infection, cold history (χ2=0.48-2.63, P>0.05). Conclusions We should guide parents to establish the right and reasonable family care behavior to effectively enhance children's physical fitness and disease resistance and to avoid exposure to infectious agents and harmful substances, reduce the occurrence of Recurrent Lower Respiratory Tract Infections.

Objective To analyze the clinical characteristics,therapeutic outcome and prognostic factors of mantle cell lymphoma(MCL)in China.Methods Clinical records of 27 MCL patients were retrospectively analyzed.The results of rituximab combined therapy and conventional therapy regimens were compared,and prognostic factors were analyzed.Results The median age of the 27 patients was 59,with marked male predominance(2.4∶1).There were 88.9% patients with bone marrow involvement at clinical stage Ⅲ～Ⅳ,59.3% with spleen involvement,44.4% with LDH elevated,33.3% with B symptoms and 11.1% with liver involvement.Among the 21 patient with conventional cytogenetic results,7 patients had additional chromosome aberration and 4 patients had more than 4 chromosomes aberration.15/20 patients were misdiagnosed in local hospitals,most of which were diagnosed as CLL/SLL.In 24 untreated patients,the CR/CRu,3 years' OS and PFS in rituximab combined therapy(RCT group)were all significantly higher than those in CT group(87.5% vs 31.3%,87.5% vs 24.1%,70.0% vs 26.9%,P

Objective To analyze the relative indicators associated with warm ischemia time (WIT).Methods We established the porcine donor after cardiac death (DCD) model and monitored biochemical parameters (glucose,lactate,pyruvate,glycerol,and glutamate) changes of porcine livers at different WIT by microdialysis technique.The pathological changes were also observed during different WIT by HE staining.Results As the extension of WIT,the morphology injury of the graft aggravated:glucose and pyruvate levels slightly declined in the early stage,and then increased with WIT entension;glycerol levels increased with WIT entension;lactate levels and lactate/pyruvate ratio increased significantly after 20 min of WIT.The expression of lactate and lactate/pyruvate ratio were increased with the prolonged WIT.Pearson correlation analysis of all factors with liver ischemia time and liver pathological injury degree (P＜0.05) showed the obvious correlation between lactate,lactate/pyruvic acid ratio with liver ischemia time and liver pathological injury degree,and of positive correlation (P＜0.001,and correlation coefficients were 0.682 and 0.453 respectively).The ROC curve analysis revealed that the area under the curve was 0.950 for lactate,and 0.885 for pyruvate,respectively.When the critical value of lactic acid was 2.3736,the sensitivity was 90％ and specificity was 95％.When the critical value of lactate/pyruvate ratio was 0.0257,the sensitivity was 80％ and specificity was 83％.Conclusion The level of lactic acid and lactate/pyruvate ratio are significantly related to the WIT.These factors may be used as a predictor of donor liver warm ischemia injury.Reference range of these indicators needs further discussion based on larger sample research.

Objective: To evaluate the efficacy and long-term outcome of a combined protocol for multiple myeloma (MM) , including induction therapy, autologous hematopoietic stem cell transplantation (ASCT) and consolidation and maintenance therapy. Methods: Clinical records of 144 patients with MM from January 1, 2005 to February 1, 2016 were retrospectively analyzed. Results: The overall response rate (ORR) after ASCT was 100.0%, in which the complete remission (CR) was 64.1% and the best treatment response rate of superior to PR was 89.4%. During a median follow-up of 47 months, patients with an overall survival (OS) and progression free survival (PFS) was 120.9 and 56.9 months respectively. 5y-OS (73.7±4.7) %, 7y-OS (60.5±6.3) %; 3y-PFS (69.2±4.2) %, 5y-PFS (47.8±5.3) %. The median OS and PFS between the first line transplantation group and salvage transplantation group were 120.9 months vs 50.1 months and 60.2 months vs 16.7 months (all P=0.000). In 127 patients with R-ISS staging, the median survival of Ⅰ, Ⅱ, Ⅲ stage was 120.9 months (n=43) , 88.4 months (n=64) , 35.6 months (n=20) , respectively (P=0.000). For subgroup analysis of survival in early and late ASCT, the median OS of patients with R-ISS stage Ⅲ (35.6 months vs 15.8 months, P=0.031) and the median PFS of two groups (phase Ⅰ: 72.1 months vs 18.9 months, P=0.000; Ⅱ: 53.4 months vs 16.7 months, P=0.012; Ⅲ: 28.5 months vs 5.9 months, P=0.001) were different. Multivariate analysis showed that only R-ISS and the degree of remission before transplantation had impact on OS (HR=8.486, 95% CI 2.549-28.255, P=0.003) and PFS (HR=2.412, 95% CI 1.364-4.266, P=0.002) , respectively. Conclusion The combined protocol containing ASCT is effective for MM patients, improving remission rate and remission depth, prolonging PFS and OS. First line transplantation could significantly prolong the OS and PFS as compared with salvage transplantation. R-ISS and pre-transplantation remission depth are prognostic factors for survival.

ObjectiveTo evaluate the reliability of Foot Posture Index (FPI-6) for Chinese adolescent idiopathic scoliosis (AIS) patients. MethodsFrom July, 2021 to April, 2022, 35 AIS patients were recruited from Guangdong Second Hospital of Traditional Chinese Medicine and non-specially. They were evaluated with FPI-6 by two raters on the same days, and by one of the raters a week later. The intra-class correlation coefficient (ICC) of inter-rater and test-retest was calculated and Bland-Altman diagram was drawn; the correlation among the items score and total score was analyzed with Spearman correlation coefficient. ResultsThe ICCs were above 0.75 except talar head palpation, and eversion and inversion of the calcaneus. There was no significant difference in foot posture classification among the three evaluation results (χ² = 4.000, P > 0.05). There was a significant positive correlation between each item score and total score (r > 0.3, P < 0.01). ConclusionFPI-6 is reliable for people with mild AIS.

OBJECTIVETo report the diagnosis, differential diagnosis and treatment of three rare cases of primary bone marrow diffuse large B cell lymphoma (DLBCL), and to improve the recognition of this disease.

METHODSThe clinical characteristics, therapeutic course and the outcome of these patients were reviewed. Meanwhile, a series of examinations including morphology, flow cytometry, immunohistochemistry and molecular biology of bone marrow samples were also performed.

RESULTSThese three patients who were old at the onset age (56, 60 and 70 years old), primarily revealed as abnormal blood count and experienced an aggressive course of disease. Physical and imaging examination showed no enlargement of lymph node, liver and spleen, the patients were finally diagnosed as primary bone marrow DLBCL by bone marrow morphology, flow cytometry and immunohistochemistry analyses. They were treated with rituximab combined chemotherapy, which achieved a complete response, but still need longer follow-up to further evaluate their survival.

CONCLUSIONPrimary bone marrow DLBCL was encountered rarely in clinical practice, and this is the first report in China. Further investigation of pathogenesis and therapeutic strategies of this rare disease was warranted.

Aged ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Bone Marrow ; Humans ; Lymphoma, Large B-Cell, Diffuse ; drug therapy ; Middle Aged

OBJECTIVETo investigate the efficacy and safety of Rituximab combined with second line regimen for treatment of relapsed and refractory Hodgkin lymphoma.

METHODSSeven patients with relapsed and refractory Hodgkin lymphoma were treated with Rituximab combined with second line regimen. Among them, two patients were treated with R-GDP (E) [rituximab, gemcitabine, cisplatin, dexamethasone (etoposide)] regimen, another two patients with R-IGVP (rituximab, ifosfamide, gemcitabine, vinorelbine, prednisone)regimen, and the left three patients with R-BEACOPP (rituximab, bleomycin, etoposide, doxorubicin, cyclophosphamide, vincristine, procarbazine, prednisone)regimen. The efficacy and safety were evaluated during and after chemotherapy.

RESULTSThere're three male and four female patients, whose median age was 21 years (range 12-36 years) old. One patient was diagnosed as nodular lymphocyte-predominant Hodgkin lymphoma (NLPHL), and the other six patients as classical HL (four nodular sclerosis HL, one lymphocyte-rich classical HL and one hmixed cellularity HL). The median cycles of salvage therapy were 4(1-4), and the median follow-up was 29 months (24-58 months). Among these 7 patients, the complete remission was observed in 4 patients, stable disease in 2 patients, but one patient died during salvage therapy. The two-year survival rates were 85.7% and the major toxic effects were bone marrow suppression.

CONCLUSIONThese results indicate that the Rituximab combined with second line regimen is an effective therapy for relapsed and refractory Hodgkin lymphoma.

Adolescent ; Adult ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Bleomycin ; therapeutic use ; Child ; Cisplatin ; therapeutic use ; Cyclophosphamide ; therapeutic use ; Deoxycytidine ; analogs & derivatives ; therapeutic use ; Dexamethasone ; therapeutic use ; Doxorubicin ; therapeutic use ; Etoposide ; therapeutic use ; Female ; Hodgkin Disease ; drug therapy ; Humans ; Male ; Neoplasm Recurrence, Local ; Prednisone ; therapeutic use ; Procarbazine ; therapeutic use ; Remission Induction ; Rituximab ; therapeutic use ; Salvage Therapy ; Vinblastine ; analogs & derivatives ; Vincristine ; therapeutic use ; Young Adult