Samy A K, Wilson B J, Engeset J, Cooper G, Ah-See A K
Vascular Unit, Aberdeen Royal Infirmary.
J R Coll Surg Edinb. 1995 Jun;40(3):180-4.
All the 638 new hospital cases of abdominal aortic aneurysm (AAA) diagnosed in the Grampian region of Scotland, over the 12-year period between January 1980 and December 1991, were studied. Information was obtained from the Scottish Morbidity Record Form 1 (SMR1). The number of AAA cases has risen from 19 in 1980 to 84 in 1991 totalling 638 cases in the 12-year study period. Of these, 29% were women, a percentage which remained fairly constant for each year of the study. The mean age of the study population was 73.8 years; higher in women (74.7 in intact and 76.6 in ruptured cases) than in men (71 in intact and 73.1 in ruptured cases). There was a significant increase in the percentage of patients over the age of 75 years (from 31.6% in 1980 to 41.7% in 1991) which was very marked in men (from 25% to 40%). This may indicate that ageing of the population is partly responsible for the apparent increased incidence of the disease. Ruptured AAA constituted 36.5% of all cases of which 76.4% were men. The rate of ruptured cases has dropped from 73.7% in 1980 to 32.1% in 1991 probably owing to operating on more elective cases. Analysis of hospital fatality, including unoperated cases, showed a fatality rate of 8.4% for intact cases as opposed to 46.3% for ruptured cases. Allowing for improved diagnostic techniques and clinical awareness of the disease, the figures suggest a true increase in the incidence of AAA in the Grampian region.
对1980年1月至1991年12年间在苏格兰格兰扁地区确诊的638例腹主动脉瘤（AAA）新入院病例进行了研究。信息取自苏格兰发病率记录表格1（SMR1）。AAA病例数从1980年的19例增至1991年的84例，在12年的研究期间共计638例。其中，29%为女性，这一比例在研究的每一年中保持相当稳定。研究人群的平均年龄为73.8岁；女性（未破裂病例中为74.7岁，破裂病例中为76.6岁）高于男性（未破裂病例中为71岁，破裂病例中为73.1岁）。75岁以上患者的百分比显著增加（从1980年的31.6%增至1991年的41.7%），男性尤为明显（从25%增至40%）。这可能表明人口老龄化在一定程度上导致了该病发病率的明显上升。破裂性AAA占所有病例的36.5%，其中76.4%为男性。破裂病例的比例已从1980年的73.7%降至1991年的32.1%，可能是由于对更多择期病例进行了手术。对包括未手术病例在内的医院死亡率分析显示，未破裂病例的死亡率为8.4%，而破裂病例为46.3%。考虑到诊断技术的改进和对该疾病临床认识的提高，这些数据表明格兰扁地区AAA的发病率确实有所上升。
