中华眼镜蛇毒F组分对沙鼠脑缺血再灌注损伤的保护作用

目的：研究中华眼镜它毒F组分脑缺血再灌注损伤的保护作用,方法：结扎沙鼠双侧颈总动脉1h,造成前脑缺血模型,用比色法测定脑匀浆过氧化脂质的最终产物丙二醛（MDA）的含量及超氧化物歧化酶（SOD）的活性,结果：F组分0．9,0．3,0．1mg/kg可显著抑制脑内脂质过氧化,降低MDA的含量,并提高超化物歧化酶的活,性且呈一定的量效关系,同缺血再灌组比较P＜0．05,同阳性对照药尼莫通比较,P＞0．05,结论：中华眼镜蛇毒F组分对脑缺血再灌注损伤有保护作用,可能与抑制自由基的生成和促进自由基的清除有关。     

脂肪栓塞综合征治疗体会(附12例报告)

脂肪栓塞综合征（Fat Embolisim Syndrome,简称FES）是骨折早期最严重的并发症之一,临床上常常误诊误治。我院1988年至1998年共收治12例,经积极治疗,11例救治成功,1例抢救无效死亡。本文对FES的发病机制、诊断、治疗、预防等进行了进一步的讨论。     

热力学模型对石油低压汽液平衡计算的适用性

以Maxwell-Bonnel图拟合式、对比态Antoine方程及Pitzer-Riedel关联式分别求算饱和蒸汽压P^0,并用RoultK值（K＝P^0／P）,计算窄留分K值。根据实测的中原、孤岛和克拉玛依石油馏分低压K值,考察上述三式,结果表明：对比态Antoine式预测精度是最好的,其温度预测绝对平均偏差为7．0℃,K值预测平均相对偏差为15．6％,其他两模型偏差均较大。     

Lipoma of the temporal region: a rare case series

Lipomas are common benign tumours that can occur in most parts of the body. Lipomas arising from the deep temporal fat pad, found between the two layers of the deep temporal fascia, are rare, however; there has been only one documented case report to our knowledge. We describe a second case arising from the temporal fat pad in a patient treated at our unit, having previously reported the first one, and discuss the relevant anatomy and management.     

Drugs acting on the heart: heart failure and coronary insufficiency

Heart failure (HF) and coronary insufficiency are common amongst surgical and critical care patients. Both are chronic conditions interrupted by acute episodes. HF activates neurohormonal mechanisms that worsen renal and cardiac function. Acute heart failure (AHF) commonly presents with dyspnoea as a consequence of systolic and/or diastolic dysfunction. Goals of treatment are symptom relief to maintain tissue perfusion and optimize cardiac function. Diuretics and vasodilators are used early; positive inotropic drugs are reserved for when other treatment has failed. Chronic heart failure (CHF) is treated using changes in lifestyle and drugs to manage symptoms. ACE inhibitors and beta-blockers are effective in systolic heart failure and are associated with improved mortality. HF with preserved ejection fraction (HFPEF) is less responsive to drug therapy, though outcomes are better than for systolic HF. Coronary insufficiency occurs because of an imbalance of myocardial oxygen balance, leading to symptoms of ischaemic heart disease (IHD). Treatment goals are maintaining coronary blood flow and reducing myocardial oxygen demand. Beta-blockers and anti-platelet drugs improve outcomes; modern anti-platelets are more effective but are associated with risks of haemorrhage. Statins are effective for primary and secondary prevention of myocardial infarction; they have additional anti-inflammatory properties.