ABSTRACT
Objective To study the safety and effectiveness of polymer-free sirolimus-eluting Nano stent in patients with unstable angina pectoris. Methods Three hundred and twenty-one patients with unstable angina pectoris were divided into Nano stent group(group A,n=157)and Endeavor resolute stent group(group B,n=164). The cardiovascular events were compared postoperative 12 months. The minimal intima cavity area and mini-mum bracket section area and neointimal area were compared postoperative 12 months by intravascular unltrasound (IVUS). Results There were 7 cases of cardiovascular events in group A and 6 in group B postoperative 12 months(P=0.727)and 2 patients in group A and 3 in group B were re-implanted stent because of restenosis post-operative 12 months(P=0.672). The neointimal area were(0.31 ± 0.11 mm2)in group A and(0.29 ± 0.12 mm2) in group B postoperative 12 months(P = 0.985). The minimal intima cavity area(P = 0.921)and the minimum bracket section area(P=0.934)were narrower postoperative 12 months than immediately after the operation in two groups. Conclusion With less cardiovascular events and being safe and reliable,the clinical effect of polymer-free sirolimus-eluting Nano stent implantation is similar to that of Endeavor resolute stent implantation.
ABSTRACT
[ABSTRACT]OBJECTIVETo observe the anatomic relationship between the middle and distal section of bony nasolacrimal duct and anterior wall of maxillary sinus. METHODS206 cases of sinus CT without maxillary disorders were enrolled. The middle and distal section of bony nasolacrimal duct and anterior wall of maxillary sinus is divided into fusion type and separation types, and the angle between the anterior and medial wall of the maxillary sinus is divided into frontal and lateral types in relation to the middle and distal section of bony lacrimal duct.RESULTSThe fusion type accounted for 40.05%, and the separate type was 59.95%. There was no statistical difference between male and female.The proportion of inconsistency on both sides was 16.02%. The frontal type of the angle between the anterior and medial wall of the maxillary sinus accounted for 64.08%, meanwhile the proportion of the lateral type was 35.92%. The lateral type was 84.24% out of the cases of fusion type, whereas the frontal type was15.76%. In the separate type, the frontal type accounted for 97.17%, and the lateral type was 2.92%. CONCLUSIONThe anatomic relationship between the middle and distal section of bony nasolacrimal duct and anterior wall of maxillary sinus shows different type, which is helpful to choose operative strategy.
ABSTRACT
Squamous cell carcinoma, in the clinical manifestation, is a form of cancer derived from lesions of keratinocytes of epidermis or accessories such as sebaceous ducts, hair follicles, sweat glands, etc. The disease is more common in older men, with prone locations at patients' scalp, face, neck and arms and other exposed parts. Head and neck squamous cell carcinoma [HNSCC] causes a serious impact on patients' daily life, making patients suffer from double blow in mental and physical aspects and reducing patients' life quality. To find effective treatment method for HNSCC, our hospital studies clinical effects of combination therapy of tegafur gimer, docetaxel and carboplatin for the disease. By way of grouping research, therapeutic effect of such treatment and adverse reactions were assessed and analyzed. The study clearly and fully confirms effectiveness of combination therapy of tegafur gimer, docetaxel and carboplatin for HNSCC
ABSTRACT
ObjectiveTo analyze the features of sleep structure of patients with different severity of obstructive sleep apnea syndrome (OSAHS). Methods168 adult patients with OSAHS were selected as study group, and 136 patients with simple snoring were selected as control group. All patients were monitored with polysonmography (PSG) throughout the night ,and compared the sleep structure of patients with different severity of OSAHS and simple snoring at night. ResultsOSAHS group compared with simple snoring group,sleep time and sleep efficiency were not significantly different(P ＞ 0. 05);while OSAHS group had increased stage I,and decreased stage Ⅱ, SWS％ and REM％, the differences were statistically significance (P ＜ 0.05 ). The difference in severe classification group( AHI ≥40) was more significant. ConclusionOSAHS patients presented more drowsy sleep, and less deep sleep, and with the grade of OSAHS increasing,the influence of sleep structure was more obvious.
ABSTRACT
BACKGROUND: Recent studies indicate that bone marrow messenchymal stem cells (MSCs) can repairinjured myocardium and improve cardiac functions. However, there are still no effective non-invasive methods to detect ventricular wall motion, survival status of transplanted cells, and microcirculation improvement after MSCsimplantation. OBJECTIVE: To detect the effects of MSCs implantation on the cardiac function of ischemic myoeardium and investigate changes of tissue acoustics characteristics by using integrated backscatter (IBS) and Doppler tissue imaging (DT1). DESIGN, TIME AND SETTING: Completely randomized grouping design, and randomized controlled study, which was carried out in the Department of Cardiology, Renmin Hospital of Wuhan University from December 2004 to June 2005 (important laboratory of 211 government). MATERIALS: Forty-eight male rabbits with irrespective of gender were used for study. Anti-troponin T (TnT) antibody was provided by Maxim Company, USA; anti-bromodeoxyuridine (BrdU) antibody by Sigma Company, USA; Sonos 5500 echocardiography by HP Company, USA.METHODS: Forty-eight rabbits were randomly divided into model group and implantation group. Model of myocardium infarction was created in rabbits by left anterior descending coronary artery (LAD) ligation. Three days after modeling, autologous bone marrow MSCs were injected into crossed myocardium between infarction and non-infarction regions based on 5 injected points.MAIN OUTCOME MEASURES: Indicators including ventricular size, ventricular wall thickness, and ejection fraction (EF) in the left ventricle (LV) were measured with routine echocardiography one day before myocardial infarction, two weeks after myocardial infarction, and four weeks after implantation. IBS and DTI might detect the anterior backscatter parameters (AII, or IB) and ventricular wall motion parameters (PPI, or CVIB) to calculate the average backscatter scores and backscatter cycle changes. DTI was used to measure peak systolic flow velocity (VS), peak early diastolic flow velocity (VE), and peak late diastolic flow velocity (VA) of the middle and basal segments of the anterior wall of left ventricle. Finally, animals were sacrificed by anesthesia, and myocardial infarction region was stained with 5-Brdu immunohistochemical staining, and anti-TnT staining. RESULTS: Twelve rabbits were excluded because of death after operation.① Echocardiography: Imaging of 36 rabbits were clear in 1 day before myocardial infarction, 2 weeks after myocardial infarction, and 4 weeks after implantation. The sizes and systolic function of LV in 36 rabbits were normal before operation. Two weeks after operation, the sizes of LV became larger, the anterior wall of LV became thinner, and systolic range became weaker even disappeared. EF, CVIB, Vs, and Ve were lower (P < 0.05) and All was higher in both groups than pre-operation (P < 0.05). Four weeks after implantation, compared with control group, left ventricular diastolic diameter (LVDd) was smaller and systolic range became larger, All descended. EF, Vs, Ve and CVIB increased (P < 0.05).② Myocardial immunohistochemical detection: Numerous of Brdu-labeled positive cells were scattered, and anti-TnT was positive, which clearly showed horizontal stria of myocardium. However, normal myocardium was negative. CONCLUSION: Bone marrow MSCs after implantation can survive in ischemic myocardium and improve cardiac function. IBS and DTI can real-timely and exactly detect functional changes of infarction myocardium after bone marrow MSCs implantation.