1.Electrocardiogram analysis of 339 patients with abnormal blood potassium
Hui ZHAO ; Long ZHAI ; Aifang ZHANG
Chinese Journal of Postgraduates of Medicine 2016;39(10):932-934
Objective To research the electrocardiogram (ECG) manifestations of common electrolyte disturbance and to discuss the accuracy of ECG diagnosis. Methods One hundred and sixty-nine hospitalized patients with hyperkalemia and 170 patients with hypokalemia were selected and the results of ECG were analyzed. Results In mild hyperkalemia patients (serum potassium concentration 5.5- 6.5 mmol/L), the ECG abnormal rate was 91.4% (64/70). In mild hypokalemia patients (serum potassium concentration 3.0-3.5 mmol/L), the ECG abnormal rate was 56.9% (41/72). There was significant difference (P < 0.05). The greater the deviation of serum potassium concentration, the more obvious the characteristic changes of ECG. Conclusions In addition to the blood biochemical test, ECG is also a kind of check tool that can help to diagnose abnormal blood potassium.
2.Effects of different anesthetic solutions on postoperative cognitive function and S100β protein
Long ZHAN ; Jiange HAN ; Wenqian ZHAI ; Jiapeng LIU ; Jianxu ER
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2015;(4):398-401
Objective To observe the effects of different anesthetic solutions on postoperative cognitive function and serum S100β protein levels.Methods A prospective randomized controlled trial was conducted. Ninety patients necessary to perform off-pump coronary artery bypass grafting (op-CABG) in Tianjin Chest Hospital from November 2013 to July 2014 were enrolled. They were divided into three groups by random number table: P1, P2 and P3 groups, 30 cases in each group. The anesthesia was maintained with propofol by target-controlled infusion (TCI) in all the patients in the three groups, and the respective dosages were < 2.0μg/mL, 2.0 - 3.0μg/mL and > 3.0 - 4.0μg/mL. The operation time, anesthesia time, dosages of propofol and the incidence of postoperative cognitive dysfunction (POCD) were compared among the three groups. At the following times: before induction of anesthesia (T0), completion of anesthesia induction (T1), after tracheal intubation (T2), skin incision (T3), 1 hour after operation (T4), 2 hours after operation (T5) and the end of operation (T6), the narcotrend index (NTI) and hemodynamic levels were observed; the serum S100β protein levels were measured at the following times: before induction of anesthesia (Ta), 2 hours after operation (Tb), the end of operation (Tc), postoperative 6 hours (Td) and postoperative 24 hours (Te).Results There were no significant differences in operation times and anesthesia times among three groups (allP > 0.05); dosages of propofol in P2 and P3 groups were obviously higher than those of P1 group (mg: 1 746.3±43.9, 2 332.7±42.8 vs. 968.5±35.6, bothP < 0.05), and the incidences of POCD in P2 and P3 groups were lower than that in P1 group (10.00%, 6.67% vs. 33.33%, bothP < 0.05). With the extension of anesthesia time, the level of NTI was gradually declined in each group, in P3 group, it was occasionally increased at T6, and beginning from time point T1 afterwards, the NTI levels were lower than those of P1 and P2 groups at all the time points (allP < 0.05); the mean arterial pressure (MAP) in the three groups had a tendency of firstly going down and then increasing, and the inflection point being at T2, in P1 group, the elevation of MAP level persisted to T4, and it began to decline at T5, while in P2 and P3 groups, the levels started to decline at T4; the heart rate (HR) in three groups showed a tendency of firstly going up and then declining, and the inflection point being at T3; until T6, in P3 group, MAP and HR were all lower than those of P1 and P2 groups, the differences being statistically significant [MAP (mmHg, 1 mmHg = 0.133 kPa): 74.9±8.3 vs. 85.3±11.2, 84.2±10.1;HR (bpm): 74.1±4.2 vs. 80.9±8.1, 78.7±7.9, allP < 0.05]. The serum S100β protein levels of three groups at Tb began to be obviously higher than those at Ta, and reached the peak points at Tc, then the levels started to decline until Td, and the levels at Te was approximately close to those of Ta, but the serum S100β protein levels in P2 and P3 groups were lower than that in P1 group, the differences being statistically significant (mg/L: 1.05±0.22, 1.04±0.21 vs. 1.33±0.22, bothP < 0.05).Conclusion Application of propofol by TCI 2.0 - 3.0μg/mL for maintenance of anesthesia can achieve the satisfactory depth of anesthesia, and it not only can reduce the effects on hemodynamics, but also can decrease the serum S100β protein level and the incidence of POCD.
3.Establishment of rabbit subarachnoid hemorrhage model and the imaging findings of a little amount of subarachnoid hemorrhage in acute phase
Liang HUANG ; Peiling LI ; Zhaohua ZHAI ; Long ZHAO ; Xiangjun FANG
Journal of Practical Radiology 2017;33(5):777-780,787
Objective To explore the sensitivity of a little amount of subarachnoid hemorrhage (SAH) between CT and different MR sequences through animal experiment,to find a more sensitive way to diagnosis SAH.Methods 18 healthy adult white New Zealand rabbits were randomly divided into two experimental groups(group A and group B) and one control group(group C).Rabbit SAH model was established by injecting blood into the cisterna magna one time.All rabbits underwent CT and MR scan at 2 hours,48 hours after operation.The findings on CT and different MR sequences were observed and recorded.Results ①In experimental groups(group A and group B),MR FLAIR sequences in the diagnosis of a little amount of SAH was more sensitive than that on MR T1WI,T2WI and CT in acute phase.And the diagnosis sensitivity between MR FLAIR and CT was statistically significant(P<0.05).②Abnormal signs of SAH could not be found in group C.Conclusion ①Rabbit SAH model was established successfully which will be the foundation for the follow-up study of medical imaging.②MR FLAIR sequence is more sensitive to diagnose a little amount of SAH in acute phase,and may be used in the routine diagnosis of SAH in acute phase.
4.Study of association between HLA class Ⅱ haplotypes and pemphigus vulgaris in Han nation of northeast China
Long GENG ; Ning ZHAI ; Xiuping HAN ; Hongxi NIU ; Fangji SONG
Chinese Journal of Immunology 1985;0(05):-
Objective:To investigate the relationship between pemphigus vulgaris(PV) and HLA-DR,DQ haplotypes in Han nations of northeast China.Methods:Polymerase chain reaction-sequence specific primers(PCR-SSP) method was used to detect the HLA-DRB1 and DQB1 alleles of 27 PV patients of Han nation of northeast China, analysed haplotyes and compared with 99 healthy controls.Results:Compared with control group, the frequencies of the haplotypes of HLA-DRB1*140x-DQB1*0503,DRB1*140x-DQB1*0201,DRB1*120x-DQB1*0503 and DRB1*140x-DQB1*0302 increased significantly in PV group. After statistical test, the difference between the two groups was significant.Conclusion:The special haplotypes may contribute to genetic susceptibility to PV in northeast Chinese.
5.Performance test and evaluation on Halcyon medical linear accelerator
PENG Jun zhe ZHAI He zheng CHEN Dong hui ZHAI Zi po LONG Hui jia CHENG Yan meng
China Occupational Medicine 2022;52(04):458-
Abstract: Objective
To evaluate the key quality control and protective performance test of Halcyon medical linear accelerator.
Methods WS 674-2020Specification for Testing of Quality Control in Medical Linear Accelerator(
According to the hereinafter
WS 674-2020) ,
referred to and the manufacturer´s manual the performance of the first Halcyon medical linear accelerator in
Results , ,
Hunan Province was tested. The results showed that all ten indicators of the accelerator including dose deviation
, , ( , , , -
repeatability linearity daily stability and symmetry the results were 0.10% 0.03% 0.04% 0.50% and 100.50% 100.80%
), - -
respectively met the requirements of WS 674 2020. The results of manufacturer quality control indicators such as dose rate
, ,
stability in beam gantry rotation isocenter and mechanical position accuracy megavolt image parameters and cone beam
computer tomography image parameters met the requirements of the manufacturer´s regulations. Due to the special structure and
, - :
function of the accelerator it is difficult to detect the parameter required by WS 674 2020 as below the radiation leakage
- , , , ,
outside the M zone the uniformity the indicators related to the light field the offset of the radiation beam axis the zero scale
Conclusion -
position of the rotating motion scale and others. It is difficult to carry out complete testing according to WS 6742020
for Halcyon medical linear accelerator and it is urgent for the state to issue relevant testing standards to standardize and
strengthen the quality control testing of various accelerators.
6.Differentiation of Brucella abortus , Brucella melitensis , and Brucella suis by multiple primers PCR
Kai, LIU ; Xing-long, WANG ; Ming-xiao, MA ; Li-juan, ZHAI
Chinese Journal of Endemiology 2009;28(4):452-454
Objective To establish a method for rapidly identifying Brucella abortus, Brucella melitensis and Brucella suis by multiple primers PCR. Methods According to Brncella abortus, Brucella melitensis and Brucella suis IS711 insertion sequences, a public primer and three specific primers(544A, 16M, 1330S) were designed to set up multiplex PCR detection method. Yersinia O : 9, Escherichia coli O157 : HT, Salmonella typhimurium 47729 were selected to undergo multiple PCR reactions to detect the specificity. The sensitivity of multiple primers PCR of Brucella abortus was detected using multiple proportion dilution method. Results The amplified fragment size of Brucella abortus was 485 bp, that of Brucella melitensis 731 bp, and that of Brucella suis 248 bp, but PCR for the DNA of Yersinia O : 9, Escherichia coli O157 : H7, Salmonella typhimurium 47729 was negative. A sensitivity of the multiple primers PCR with Brucella abortus DNA using multiple proportional dilution quantitative method was 0.0967 pg. Conclusions Multiple PCR amplification method for rapidly detecting Brucella abortus, Brucella melitensis and Brucella suis has been successfully established, resulting in good specificity and sensitivity.
7.Study on preparation of phenols gastric floating tablet.
Xiao-Ling ZHAI ; Jian NI ; Yu-Long GU
China Journal of Chinese Materia Medica 2008;33(1):31-34
OBJECTIVETo study the preparation of phenols gastric floating tablet.
METHODThe tablets which were prepared using Eudragit IV, HPMC(K4M), MCC101 and Octadecanol as excipients were evaluated by vitro floatation and releasing performance. The pressure of preparationg was also study to select the optimal preparation.
RESULTThe tablets were successfully prepared in which the drug, Eudragit IV, Octadecanol were 31% respectively,and MCC101 was 7%. And 3-4 kg was found to be the eligible pressure.
CONCLUSIONThe study was found to be effective in the process of phenols gastric floating tablet.
Drug Carriers ; Excipients ; chemistry ; Gastrointestinal Agents ; chemistry ; Phenols ; chemistry ; Polymethacrylic Acids ; chemistry ; Tablets ; Technology, Pharmaceutical ; methods
8.Intervention combined surgery for the treatment of acute iliofemoral vein thrombosis
Tianrun LI ; Xuan LI ; Guojun ZHAI ; Long ZHANG ; Jinman ZHUANG ; Jintao HAN ; Qichen FENG
Chinese Journal of General Surgery 2011;26(10):845-848
ObjectiveTo compare two treatment methods for acute iliofemoral vein thrombosis:c atheter-directed pharmacomechanical thrombolysis (CDPT,47 cases) and intervention combined surgicaltherapy( IST,14 cases).MethodsThis study includes 61 patients of acute iliofemoral vein thrombosis treated by CDPT or IST.All discharged cases were followed up by telephone for a period of 14 -37 months.ResultsAmong the 61 patients (64 extremities),47 (forty-seven extremities) treated by CDPT,and 14 cases (seventeen extremities) treated by IST.The IST group included three patients of bilateral iliofemoral vein thrombosis,five patients on postoperative status within one month,and three patients in which the iliofemoral vein was not accessible.When discharged from hospital,the effective rate of edema relief is 93.6% in CDPT group while that is 94.1% in IST group; Melena occurred in one patient of CDPT group and incision hematoma occurred in one patient of IST group.According to the results of 14 -37 months follow-up,the effective rate of edema relief is 85.0% in CDPT group while that is 85.7% in IST group ( x2 =0.004 and the P =0.948).Calf pigmentation occurred in only one patient of CDPT group.The patency rate of vein by BUS examination is 52.6% in CDPT group while that is 84.6% in IST group x2 =4.157,P =0.041 ).ConclusionsComparing with CDPT group,IST group has the similar effective rate of edema relief,but has higher patency rate of iliofemoral vein.In case of bilateral acute iliofemoral vein thrombosis,in patients in whom thrombolysis is contraindicated,or when the iliofemoral vein is not accessible,IST is the treatment of choice for acute iliofemoral vein thrombosis.
9.The investigation of glucocorticoid receptors in patients with polymyositis/dermatomyositis
Jiu-Hong LI ; Ning ZHAI ; Bo LI ; Gui-Jiao BI ; Long GENG ; Fang-Ji SONG ;
Chinese Journal of Rheumatology 2001;0(04):-
0.05).But GR number[sites/cell]and the expression of GR mRNA in PBMCs from PM/DM was significantly lower than those in healthy controls(P
10.Applications of the hospital statistics management system.
Hong ZHAI ; Yong REN ; Jing LIU ; You-Zhang LI ; Xiao-Long MA ; Tao-Tao JIAO
Chinese Journal of Medical Instrumentation 2008;32(1):64-69
The Hospital Statistics Management System is built on an Office Automation Platform of Shandong provincial hospital system. Its workflow, role and popedom technologies are used to standardize and optimize the management program of statistics in the total quality control of hospital statistics. The system's applications have combined the office automation platform with the statistics management in a hospital and this provides a practical example of a modern hospital statistics management model.
Hospital Administration
;
Hospital Information Systems
;
Office Automation
;
Statistics as Topic