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Objective To investigate the relationship between the maximum thickness of carotid atherosclerotic plaque and the incidence of complications after carotid stenting in patients with severe carotid stenosis.Methods The clinical data of 85 patients with severe carotid stenosis undergoing CAS were analyzed.The maximum thickness of carotid plaque was evaluated according to ultrasound imaging data.Patients were divided into two groups according to the optimal threshold value:0.435 mm,which calculated in the ROC curve of plaque thickness.The incidence of complications within two years after CAS was analyzed.Results 85 patients were followed up for 2 years:restenosis occurred in 12 cases,the incidence rate was 14.1％,which was significantly correlated with the maximum thickness of atherosclerotic plaque(P =0.002).Postoperative restenosis occurred in 2 cases (3.70％) in group A and 10 cases (32.26％) in group B(P ＜ 0.001);Three cases (9.68％) suffered from relapsing cerebral infarction in group B compared to none in group A (P =0.020).Conclusion With the carotid plaque growing thicker,the incidence of restenosis after CAS in patients with carotid stenosis increases.Especially in patients whose maximum plaque thickness is more than 0.435 mm,the incidence of restenosis postoperative increases remarkably.
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Objective@#To investigate the relationship between the maximum thickness of carotid atherosclerotic plaque and the incidence of complications after carotid stenting in patients with severe carotid stenosis.@*Methods@#The clinical data of 85 patients with severe carotid stenosis undergoing CAS were analyzed. The maximum thickness of carotid plaque was evaluated according to ultrasound imaging data.Patients were divided into two groups according to the optimal threshold value: 0.435 mm, which calculated in the ROC curve of plaque thickness. The incidence of complications within two years after CAS was analyzed.@*Results@#85 patients were followed up for 2 years: restenosis occurred in 12 cases, the incidence rate was 14.1%, which was significantly correlated with the maximum thickness of atherosclerotic plaque(P=0.002). Postoperative restenosis occurred in 2 cases (3.70%) in group A and 10 cases (32.26%) in group B(P<0.001); Three cases (9.68%) suffered from relapsing cerebral infarction in group B compared to none in group A(P=0.020).@*Conclusion@#With the carotid plaque growing thicker, the incidence of restenosis after CAS in patients with carotid stenosis increases. Especially in patients whose maximum plaque thickness is more than 0.435 mm, the incidence of restenosis postoperative increases remarkably.
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Objective To evaluate the long-term clinical effect of Thoracic endovascular aortic repair (TEVAR) for traumatic Type B aortic dissection,and to provide a reference for the next stage treatment.Methods Twenty-one patients with traumatic Stanford type B aortic dissection treated in our center from December 1999 to June 2012 were retrospectively analyzed for the treatment effectiveness and follow-up results.The average age of 21 Traumatic Type B aortic dissection patients was 42.7 years (range:19 to 67 years).Men accounted for 85.7％ (18/21).80.9％ (17/21) of the dissection were caused by car accident,4 were due to falling accident from high places.There were 7 cases of hypertension,4 cases of diabetes,4 cases of hyperlipidemia,2 cases of chronic ischemic heart disease,14 cases of pneumothorax,8 cases of rib fracture,3 cases of craniocerebral trauma / neuropsychiatric symptoms,and 1 patient with shock.The median time from onset to treatment was 5 days (range:1-73 days).There were 16 cases (≤14 days) in the acute phase,2 cases (15-60 days) in the subacute phase,and 3 cases (＞ 60 days) in the chronic phase.There was no patient in super acute phase in the study group (0-24 hour).Results The perioperative mortality was 9.52％ (2/21) for the patients traumatic type B aortic dissection,4.76％ (1/21)for those with postoperative endoleaks;2-year and 5-year survival rates were 90.48％ and 85.71％.Conclusion Intracavitary treatment of traumatic Stanford B type aortic dissection is effective and has good long-term clinical benefit,which provides a guidance for future clinical treatment of traumatic type B aortic dissection.
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Objective To explore the feasibility of carrying out the common imprecision range among different biochemical systems in different laboratories.Methods Biochemical professionals visited 18 third-grade class A hospitals in Hebei Province,investigated the internal quality control data of 21 biochemical tests and made classification according to certain parameter criterias.Data were collected from April to September,2010 and calculated for cumulative mean,standard deviation (s) and CV.Data were compared according to 1/3,1/4 of TEa established by CLIA'88 and allowable CVb％ derived from biological variants.Results Among 18 hospitals,5 (27.8％) set their target value by mean value of 6 months,5(27.8％) by continuous 20 days and 8(44.4％) by the given value of the supplier.CVs of 21biochemical tests were quite different among 18 biochemistry laboratories,in which LDH was 6.79 times and CK was 76.79 times different from one another.35.5％-94.1％ biochemical tests met the requirement of CV ＜ 1/3TEa and 0.0％-91.7％ met the requirement of CV ＜ 1/4TEa.0.0％-94.1％ of tests were below allowable CVb％ 16/21 (76.2％) tests could satisfy the requirement of CV ＜ 1/3TEa.The top five tests which didn't meet the requirements were Na,Urea,TBIL,ALT and Glu.Conclusions The internal quality control among biochemistry laboratories in Hebei Province has not been standardized yet.According to the survey data,biochemistry laboratories of third-grade class A hospitals may set 75％ point of imprecision as a reference.After a period of improvement,we will set common imprecision range among biochemistry laborotories in Hebei Province and even in China.