Eriksen Ragnar
Medisinsk avdeling, Gastroenterologisk seksjon, Alesund sjukehus, 6026 Alesund.
Tidsskr Nor Laegeforen. 2005 May 19;125(10):1314-6.
Acute transient ischaemic colitis gives abdominal pain and blood per rectum; the symptoms disappear in the course of a few days. The diagnosis is made by clinical signs and symptoms, endoscopy and histology.
During the last tree years this diagnosis has been made in 12 patients in our department. In an attempt at evaluating the extent to which transabdominal ultrasonography could give diagnostic information, the patients were examined in the acute state and at control a few days later; then the data were compared.
At admission the bowel wall echotexture was non-stratified; proximal to the ischaemic damage was fluid or air within the bowel lumen in all patients. During the observation period the thickness of the bowel wall was reduced from 9.0 +/- 1.7 to 4.2 +/- 0.7 mm (p < 0.0005). At the same time, mural resistive index was reduced from 0.72 +/- 0.08 to 0.62 +/- 0.09 (p = 0.010), while systolic acceleration time was reduced from 0.144 +/- 0.054 to 0.070 +/- 0.023 ms (p = 0.001), the same value as was found in the great mesenteric vessels (p = 0.969).
In acute transient ischaemic colitis, transabdominal ultrasonography may reveal pathological haemodynamic conditions and bowel wall thickness, both of which normalise within a few days.
急性短暂性缺血性结肠炎表现为腹痛和直肠出血；症状在数天内消失。诊断通过临床体征和症状、内镜检查及组织学检查做出。
在过去三年中，我们科室对12例患者做出了该诊断。为评估经腹超声检查能够提供诊断信息的程度，在急性期和数天后的复查时对患者进行检查；然后比较数据。
入院时肠壁回声结构无分层；所有患者缺血损伤近端的肠腔内有液体或气体。在观察期内，肠壁厚度从9.0±1.7mm降至4.2±0.7mm（p<0.0005）。同时，壁阻力指数从0.72±0.08降至0.62±0.09（p = 0.010），而收缩期加速时间从0.144±0.054ms降至0.070±0.023ms（p = 0.001），该值与在肠系膜大血管中测得的值相同（p = 0.969）。
在急性短暂性缺血性结肠炎中，经腹超声检查可能显示病理性血流动力学状况和肠壁厚度，两者均在数天内恢复正常。
