Objective To investigate the effects of tight blood glucose control on the shortterm prognosis of the patients after heart valve replacement, in order to improve treatment effectiveness and lower postoperative complications. Methods A total of 240 patients including 150 males and 90 females underwent mitral valve replacement or mitral and aortic valve replacement were enrolled in this study from January 2007 to December 2008 at the cardiac surgery department of Renmin hospital of Wuhan university. The age of these patients ranged from 19 to 65 years old with an average age of 53.33 years. According to insulin administration time and blood glucose control level, they were randomly separated into two groups. In the experimental group, there were 121 patients who received continuous insulin infusion to maintain postoperative glucose level between 4.4 and 6.1 mmol/L, while 119 patients in the control group received insulin infusion when their glucose level went higher than 11.1 mmol/L to control the level between 6.1 and 11.1 mmol/L. Then the postoperative wound infection, malignant arrhythmia rate, the assisted ventilation time, intensive care unit(ICU) stay time and count of neutrophils were compared and analyzed. Results There was no hospitalized death in both groups. The rate of wound infection（3.31% vs.10.08%, χ2=4.430,P=0.035）, the assisted ventilation time（9.02±2.73 h vs. 10.01±3.58 h, t=2.280,P=0.024）, time for count of leukocytes to decrease to the normal level（11.04±3.16 d vs. 12.05±3.76 d, t=2.168,P=0.031）, average hospitalization time（13.49±3.81 d vs. 14.51±4.02 d,t=2.017,P=0.045）, and count of neutrophils on the third day（0.82±0.04 vs. 0.84±0.05, t=2.644,P=0.009） in the experimental group were significantly lower or shorter than those in the control group. But there was no significant difference between both groups in ICU stay time and the rate of malignant arrhythmia. Conclusion Tight blood glucose control can lower the rate of postoperative wound infection, shorten the assisted ventilation time and hospitalization time, and reduce the usage of antibiotics in patients after heart valve replacement. Accordingly, it can enhance the curative effect, reduce overall medical expenses, and improve prognosis.
Objective To compare the efficacy of 6-epsilon-aminocaproic acid （EACA） with aprotinin on reducing postoperative bleeding in cardiac valve replacement procedures, and to investigate its influence on the possible thromboembolism and the renal function. Methods Seventy-nine patients who underwent cardiac valve replacement were randomly divided into two groups： EACA group （n = 39） and aprotinin group （n = 40）, which were given EACA and aprotinin separately in operations. The volumes of drainage to body surface area （BSA）, blood transfusion were recorded during 24 h after operations. The concentrations of serum D-dimer and α2-antiplasmin （a2- AP） were measured before, during operation and at 72h post-operatively. The serum creatinine levels before operation and at the 72 h after operation were also measured. Results The volume ratio of drainage to BSA in EACA group was significantly higher than that in the aprotinin group at 24 h after operation （P = 0. 019）. However, there was no significant difference in the volumes of blood transfusion between two groups （P〉0. 05）. Also no statistical difference in the concentrations of D-dimer and a2-AP were found between two groups whether preoperatively or at 72h post-operatively （P= 0. 960,0. 485）, D-dimer and a2-AP of the aprotinin group were higher than those in the EACA group after aortic off-clamping （P = 0. 001,0. 000）. There was no statistically difference of △CrCl72 in both groups （P〉0. 05）. No patient with thrombosis or thromboembolism was detected in two groups.Conclusion Although the efficacy of EACA in reducing postoperative bleeding in cardiac valve replacement can not compare favorably with that of aprotinin, the blood transfusion volume would not increase when EACA is used introoperatively. Proper usage of EACA will not cause thrombosis and renal damage.
摘要:目的: 在风湿性心脏病患者瓣膜置换术中,评价罗库溴铵在麻醉诱导期间对患者心肌氧供和氧耗平衡的影响。 方法 :选择86例在中低温体循环下行瓣膜置换术的患者,采用随机双盲法分配成罗库溴铵组(n=42例)和维库溴铵组(n=41例)。给予咪唑安定(005～01 mg/kg)及芬太尼(10～15μg/kg)及等效剂量的罗库溴铵06 mg/kg或维库溴铵01 mg/kg(Org. Comp)进行麻醉诱导。监测麻醉诱导前至插管后10分钟(1次/1分)期间两组患者心肌氧供和氧耗的变化。 结果 :与基础值相比,罗库溴铵组患者在插管后5分钟期间心率增加了174%～135%,动脉收缩压增加了1694%～143%,平均动脉压增加了151%～132%。同期心率收缩压乘积增加了2267%～1396% (〖WTBX〗P lt;005)。心率和动脉血压在插管后1～7分钟期间明显高于同期的维库溴铵组患者(〖WTBX〗P lt;005)。 结论 :在ASA ⅢⅣ级、心功ⅡⅢ级风心病瓣膜病变患者进行瓣膜置换术中, 06 mg/kg罗库溴铵有潜在增加患者心肌耗氧量的作用。Abstract: Objective: To evaluate the effects of rocuronium on myocardial oxygen supplydemand in patients with rheumatic heart disease (RHD) during induction. Methods : 86 patients of either sex (ASA status ⅢⅣ; New York Heart Association classes ⅡⅢ) scheduled for valve replacement surgery were included in this randomized clinical trial (RCT). SwanGanz catheter was placed via right internal jugular vein before the induction of anaesthesia. Anaesthesia was induced with midazolam 00501mg.kg-1 and fentanyl 1015 μg·kg-1. The patients were randomized to receive either rocuronium 06 mg·kg-1 (group R, 〖WTBX〗n= 42) or vecuronium 01 mg·kg-1 (group V, 〖WTBX〗n= 41) to facilitate tracheal intubation when bispectral index (BIS) value dropped to 60 All data were recorded at the time before anaesthesia (Tb), loss of consciousness (Ts), administration of muscle relaxant (Tm), 1 min after administration of muscle relaxant (T1), when trainoffour stimulation (TOF) reached 0 (T2) and 1,2,3,4,5,7,10 min after tracheal intubation (T39).〖WTHZ〗Results : Heart rate (HR) increased by 174%135%, systemic arterial systolic pressure (SAP) increased by 1694%143%, mean arterial systolic pressure (MAP) increased by 151%132% and product of heart rate and arterial systolic pressure(RPP) increased 2267%1396% respectively during 5 minutes after intubation as compared with baseline in group R, which were significantly higher than those in group V during 5 minutes after intubation (〖WTBX〗P lt;005). Conclusion : An intubation dose of rocuronium should be used cautiously in patients with rheumatic heart disease (ASA status ⅢⅣ; NYHA classes IIⅢ).
Objective To explore the affecting factors on sinus rhythm maintenance after electric cardioversion for patients with atrial fibrillation (Af) after cardiac valve replacement. Methods One hundred fifty two valvular disease patients with Af after cardiac valve replacement were randomized to 2 groups: Amiodarone group and control group (without anti arrhythmic drugs) after cardioversion. Af recurrence was observed during one year follow up. Results (1) No significant difference of Af recurrence betwe...