1.ANALYSIS OF PROGNOSIS OF CRANIOPHARYNGIOMA
Yuanzhao LIU ; Mingyuan LIU ; Suhua XIAO
Chinese Journal of Radiation Oncology 1995;0(02):-
Fouty-four patients with craniopharyngioma were admitted trom Junuary 1982 to February 1993 for post-operative radiotherapy. The 5-year survival was 78.9%. Among these 44 patients, 15 were adults and 29 were children. The children gave a higher 5-year survival rate but poorer quality of life as compared with the adults though without statistical significance in the survivals. Among the children, a dose of 56.1~60.0Gy gave better survival as compared with the 45~56Gy group without significance though causing obviously sequelae, eg: amenorrhea and hampered sex development (P
2.The influence of lung correction on the target dose in radiation treatment of esophageal carcinoma
Gaofeng LI ; Mingyuan LIU ; Shaogang ZHANG
Chinese Journal of Radiation Oncology 1992;0(01):-
Purpose: To evaluate the influence of lung corrections on the target volume dose in radiation treatment of esophageal carcinoma by TPS HEVAPLAN. Materials and Methods: Three radiation field technique to middle esophagus were used as the model of this investigation .target volume doses were calculated with photons in different energies to compare with the divergence when the lung density were set to 1.0(without lung correction) 0.33 and 0.2 (with lung correction).Results: If no lung correction was performed, the actual radiation dose in target volume were 24%~28%, 18%~21%, 13%~15% and 7%~9% which were radiated with 60 Co, X-ray of 5MV, 8MV and 19MV. Conclusion: The lung density must be corrected in treating 60 Co unit.
3.Salvage treatment of primary recurrence in patients with laryngeal cancer after definitive radiotherapy
Weiwei LIU ; Zhihua CHEN ; Mingyuan CHEN
China Oncology 2000;0(06):-
Purpose:To investigate the clinical applicati on and curative effect of salvage treatment for primary recurrence after definitiv e radiotherapy in patients with laryngeal cancer. Methods:52 patients with laryngeal cancer receiving definitive radiotherapy in the Cancer Center of Sun Yat-sen University between 1990 and 19 95 were reviewed retrospectively. Among them, 17 patients presented with primary recurrence. Salvage treatment after radiotherapy failure included palliative ch emotherapy (5 cases) and surgical salvage (12 cases). 6 patients were salvaged b y partial laryngectomy and 6 patients by total laryngectomy. SPSS 10.0 software was used to analyze the effects, complications and the differences between diffe rent salvage treatments. Results:The overall 3- and 5-year cumulative survival rates a fter salvage treatment for primary recurrence in patients with laryngeal cancer receiving definitive radiotherapy were 56.3% and 37.5% respectively. The patient s receiving palliative chemotherapy after radiotherapy failure survived between 8 and 26 months. The 3- and 5-year cumulative survival rate in patients receiv ing surgical salvage were 75% and 50% respectively. There was significant differ ence between them analyzed by Kaplan-Meier (Log Rank=8.14, P=0.004 3). More over, the 5-year survival rates in patients salvaged by partial laryngectomy an d total laryngectomy were all 50% and there was no statistical difference betwee n them (Log Rank=0.08, P=0.7782). 5 out of 12 (41.7%) patients salvaged by s urgery presented complication after surgery, mainly infection after surgery (25 %) and pharyngocutaneous fistula (25%). Conclusions:Surgical salvage for primary recurrence in patients with laryngeal cancer receiving definitive radiotherapy could be effective.Part ial laryngectomy could be used for early primary lesion (T 1 and T 2) in patie nts with primary recurrence. The complications after salvage surgery were mainly were infection and pharyngocutaneous fistula.
4.The possible relationship between platelet membrane glycoprotein(GP)Ⅰ a gene polymorphism and change of platelet function after PCI.
Guangyuan YANG ; Mingyuan LIU ; Xiaohui ZHAO
Chinese Journal of Practical Internal Medicine 2001;0(03):-
0.05).(2)The plasma GMP-140 levels of both groups was remarkably increased immediately and a decreased trend 24 h after PCI,but did not return to normal(P
5.Progress in treatment of systemic inflammatory response syndrome and multiple organ dysfunction syn- drome
Shengming XU ; Mingyuan LIU ; Baochun LI
Academic Journal of Second Military Medical University 2000;0(08):-
The treatment of systemic inflammatory response syndrome (SIRS) and multiple organ dysfunction syndrome (MODS) is difficult in ICU. In addition to traditional methods, immunologic therapy has been used recently to treat SIRS and MODS through adjusting inflammatory responses and redressing abnormal responses. This article reviews the progress in treatment of SIRS and MODS,including blocking inflammatory activation, modifying the activation of inflammation, giving gene therapy and combination therapy of TCM and western medicine.
6.Study of Hippocampal Perfusion in Temporal Lobe Epilepsy Patients with MRI Arterial Spin Labeling(ASL) Technique
Mingyuan HE ; Rui ZHAO ; Pengfei LIU
Journal of Medical Research 2017;46(3):82-86
Objective To perform the main application of MRI arterial spin labeling (ASL) in cerebral blood flow (CBF) on hippocampus of patients with temporal lobe epilepsy for quantitative measurement,to assess the relationship between temporal lobe epilepsy occurrence and hippocampal perfusion and to explore the critical value of hippocampal CBF predict the temporal lobe epilepsy early.Methods Forty-two subjects by video EEG (VEEG) and conventional MR sequences screend were divided into 3 groups eventually,namely group of healthy control,the group with one temporal lobe abnormal discharge,that conventional MRI in hippocampus is not abnormal and the last group with one side hippocampus sclerosis confirmed by conventional MRI in temporal lobe epilepsy patients,then for the hippocampal 3D ASL examination.We provided six same size regions of interest (ROI) in the hippocampal head,body,tail respectively with the best level display to measure and record bilateral hippocampal cerebral blood flow values (CBF values) of every subject,and to explore the relationship between the cerebral blood flow value in the hippocampus and temporal lobe epilepsy.Results Mean cerebral blood flow (CBF) value of each subject's unilateral hippocampus was calculated.The average CBF value of the hippocampus in the healthy control group was 53.82 ± 0.98ml/(100g · min).The average CBF of the hippocampus in epileptic unilateral abnormal discharge group with the ipsilateral and contralateral were 49.12 ± 5.31ml/(100g · min) and 55.99 ± 1.65ml/(100g · min).The average CBF of the hippocampus in epileptic unilateral hippocampal sclerosis group with the ipsilateral and contralateral were 39.57 ± 2.08ml/(100g · min) and 48.06 ± 1.74ml/(100g · min).Then pairwise comparison of the unilateral hippocampal average CBF value among the 3 groups of experimenters in different groups was performed.The results showed that in the eight times,the first six times had statistically significant differences.Comparing between the healthy control group and epilepsy unilateral temporal lobe abnormal discharge group,to calculates the best critical point by the ROC curve,the cut-off value was 46.76.Conclusion Magnetic resonance arterial spin labeling (ASL) technique can evaluate the cerebral blood flow in the hippocampus of patients with temporal lobe epilepsy by quantitative measurement of hippocampal CBF value.The changes of hippocampal perfusion in patients with temporal lobe epilepsy should be preceded by the changes of imaging.ASL quantitative measurement of hippocampal CBF value is helpful for early diagnosis and treatment of temporal lobe epilepsy.
7.Obseration of curative effect of extracorporeal lipoprotein filter from plasma Delipid Plus therapy on acute cerebral infarction
Mingyuan LIU ; Yangtai GUAN ; Xiaojun HOU
Journal of Clinical Neurology 1997;0(06):-
Objective To explore the curative effect of extracorporeal lipoprotein filter from plasma Delipid Plus(DELP) system therapy on acute cerebral infarction(ACI). Methods 36 patients with ACI were divided into DELP group (12 cases) and control group (24 cases). All of them received basic treatment including Aspirin and Pravastatin sodium etc. The DELP group also treated by DELP therapy twice. The scores of National Institute of Health Stroke Scale (NIHSS),Barthel Index (BI) and Modified Rankin Scale (mRS),and the levels of plasma fibrinogen (Fib),blood lipid and the indexes of hemorheology were compared pre and post treatment in the two groups.Results The reduction value of NIHSS between pre and post treatment in DELP group was bigger than this in control group(P
8.Ethical Consideration about the Medical Health Reform and the Government Responsibility
Dianen LIU ; Jianmei GUO ; Mingyuan SHAO
Chinese Medical Ethics 1995;0(02):-
Based on summing up the mainstream opinion of the reasons of the failure of medical health reform and analyzing typical cases,this article promulgates the following content.The medical health reform' s failure are due to the clinical decision-made in seeking interest and the health policy of exuding the commercialization.The forming mechanism is the two reasons work together.The essence is the medical health service is not suited to people's healthy demand which grows day by day and the level of economic development.This refracts the absentation of the government responsibility ethics,which does not present or work.The basic goal of the medical health service to maxi mize the public benefit,which is the dominant value orientation in the medical health service.Certainly it is also the right orientation of the government responsibility ethics in medical health reform.
9.Stereotactic radiotherapy for the elderly patients with brain metastases.
Yuanzhao LIU ; Gaofeng LI ; Mingyuan LIU ; Suhua XIAO ; Defa CHU
Chinese Journal of Geriatrics 2001;0(01):-
5 ml groups were 95.5% and 81.1% respectively. This difference was statistically significant (P5 ml groups were 4.5 % and 32.1%, respectively (P50 Gy was increased statistically, but the occurrence of complications was also increased. Conclusions Stereotactic radiosurgery improves the outcome of the elderly patients with brain metastases. Radiation dosage and tumor volume are significantly related with the therapeutic efficacy and the occurrence of complications.
10.Analysis of the contrast sensitivity of branch retinal vein occlusion without involving the macular region
Zhixue WANG ; Tingting CAO ; Wenying WANG ; Xue WANG ; Mingyuan LIU
Chinese Journal of Ocular Fundus Diseases 2016;32(4):395-398
Objective To observe the contrast sensitivity (CS) of patients with branch retinal vein occlusion (BRVO) without involving the macular region.Methods 92 BRVO patients (93 eyes) and 56 cases (112 eyes) without eye diseases (control group) were included in the study.According to different region,BRVO patients were divided into the nasal BRVO group (31 eyes) and temporal BRVO (62 eyes) group,and the average corrected visual acuity was 1.02 ± 0.13 and 0.98 ± 0.12 respectively.According to the type of ischemia,BRVO patients were divided into the nonischemic BRVO group (58 eyes) and ischemic BRVO group (35 eyes),the average corrected visual acuity was 1.01 ± 0.14 and 0.99 ± 0.12 respectively.The average corrected visual acuity of the control group was 1.03 ± 0.11.There was no statistically significant difference of the average corrected visual acuity between nasal BRVO group,temporal BRVO group and control group (F=3.03,P =0.06),and between nonischemic BRVO group,ischemic BRVO group and control group (F=1.60,P=0.20).Contrast sensitivity (CS) was measured by OPTEC 6500 vision tester (Stereo Company,USA) under the standard lighting conditions and different spatial frequencies including low (1.5 and 3.0 c/d),medium (6.0 c/d) and high frequencies (12.0 and 18.0 c/d).Results The CS under each spatial frequency of the nasal BRVO group was the same as the control group (t=4.25,9.48,3.08,5.86,0.94;P>0.05),but the CS under each spatial frequency of the temporal BRVO group was different from the control group (t=8.59,19.11,10.38,17.28,6.01;P<0.05).The CS under high spatial frequency of the temporal and nasal BRVO group was statistically different (t=11.42,6.95;P<0.05).The CS under each spatial frequency of the ischemic BRVO group was different from the control group (t=8.88,10.56,11.64,19.06,6.67;P<0.05).The CS under 6,12 and 18 c/d spatial frequency of the nonischemic BRVO group was statistically different with the control group (t =10.14,11.54,2.82;P<0.05).The CS under 12 and 18 c/d spatial frequency of the nonischemic BRVO group was statistically different with the ischemic BRVO (t=7.52,3.84;P<0.05).Conclusions The CS of the temporal BRVO and ischemic BRVO decreased more significantly under each spatial frequency.CS is a better indicator to evaluate the visual function than the visual acuity in BRVO without involving the macular region.