ABSTRACT
OBJECTIVE:To compare the preventive effects and safety of aspirin and clopodogrel respectively used for vascular restenosis after coronary intimal striping with coronary artery bypass grafting. METHODS:110 patients with coronary atherosclerot-ic heart disease were divided into aspirin group (55 cases) and clopodogrel group (55 cases). All patients intravenously mi-cro-pumped Nitroglycerin injection 10 mg+5% Glucose injection totally 20 mL for maintaining 48-72 h after coronary intimal strip-ing with coronary artery bypass grafting,intravenously pumped Dopamine hydrochloride injection 1-5 μg/kg if necessary. Unplug the endotracheal tube after surgery,patients received Cefuroxime sodium for injection 1.5 g adding into Sterile water for injection 50 mL,intravenous injection,3 times a day,for 2-3 d. Meanwhile,patients were orally given Rosuvastatin calcium tablet 10 mg 30 min after daily dinner,8-week was a course,for 3 courses. Based on it,aspirin group received Aspirin enteric-coated tablet with initial dose of 300 mg,once a day,orally taking 100 mg from the second day,once a day,for 6 months;clopodogrel group received Clopidogrel hydrogen sulfate tablet with initial dose of 300 mg,once a day,orally taking 75 mg from the second day, once a day,for 6 months. Graft patency rate,and platelet aggregation rate,platelet aggregation compliance rate,fibrinogen(Fg), D-dimer (D-D),platelet count (PLT),tissue-type plasminogen activator (t-PA) before and after treatment,and the incidence of adverse reactions in 2 groups were observed. RESULTS:There were no significant differences in the graft patency rate and inci-dence of adverse reactions in 2 groups (P>0.05). Before treatment,there were no significant differences in platelet aggregation rate,platelet aggregation compliance rate,Fg,D-D,PLT and t-PA in 2 groups (P>0.05). After treatment,platelet aggregation rate,Fg and D-D level in 2 groups were significantly lower than before,platelet aggregation compliance rate,PLT and t-PA level were significantly higher than before,with statistical significance(P0.05). CONCLUSIONS:Based on conventional treatment,both aspirin and clopidogrel used for coronary intimal strip-ing with coronary artery bypass grafting can inhibit platelet aggregation,reduce thrombosis,maintain vascular patency and prevent vascular restenosis,with good safety.
ABSTRACT
OBJECTIVE:To prepare Ferulic acid/K/β-CD/metal organic framework (FA/K/β-CD/MOF) inclusion,and to opti-mize its preparation technology. METHODS:K/β-CD/MOF was synthesized by solvothermal method as inclusion material. Using FA as main component,FA/K/β-CD/MOF was prepared by grinding method. The preparation technology was optimized by orthogo-nal test using mole ratio of main component-inclusion material,grinding time,dropping time and inclusion temperature as factors, inclusion rate as index. Prepared FA/K/β-CD/MOF was indentified by IR spectrum and DSC,and inclusion rate and dissolution rate were determined. RESULTS:Optimized preparation technology was as follows as mole ratio of main main component to inclusion material 3∶1,dropping time 60 min,inclusion temperature 40 ℃,inclusion time 60 min. Prepared FA/K/β-CD-MOF had already formed a new kind of phase,and its average inclusion rate was(18.0±1.6)%(RSD=0.9%,n=6);its solubility was 15 times as much as FA(9.582 mg/ml vs. 0.647 mg/ml). CONCLUSIONS:FA/K/β-CD/MOF is prepared successfully;and the preparation tech-nology is reasonable and feasible.
ABSTRACT
Objective To explore the characteristics of operation,curative effects and operative management in elderly patients of age older than 70 years with coronary heart disease receiving coronary artery bypass grafting.Methods 108 elderly patients of age older than 70 years with coronary heart disease were divided into two groups:OPCAB group(n = 76) and CCABG group (n = 32) The clinical curative effects, early postoperative mortality and complications of the two groups were compared and analyzed respectively. Results OPCAB group was better than CCABG group in these series(P ＜ 0.05): The early postoperative mortality (5.8%, 11.2%)、 myocardial infarction (2.9%, 10.6%), respiration failure(8.7%, 17.5%), pulmonary complications: (11.8%, 31.5%) 、complication of CNS:(1.8% ,9.8%) 、acute renal failure(1.8% ,6.2%) ,the time of intubation: (9.3 ±4.5), (25.4 ±7.5) h,ICU stay(3.1 ± 1.8) ,(7.1 ±2.9) d,hospital stay(15.5 ±8.6) ,(26.4 ±8.6)d. Conclusion OPCAB could reduce operative mortality and complication, it should be the first option for the surgery of elder patients with coronary heart disease;surgical skills and correct perioperative management were the key factors to assure surgical outcome.