The subsets of acute intestinal ischaemia include mesenterica arterial occlusion, venous thrombosis and non-occlusive mesenteric ischaemia. Advances in pathophysiology, diagnosis and treatment, prognostic problems are associated still in mortality rates of more than 60%. Early diagnosis is the first in possibility for better prognosis. In our article is case one young man with acute non-occlusive intestinal ischaemia described, diagnosis and treatment. Mucosal surface necrosis and hemorrhage was supposed, sepsis was expected, mucosal regeneration after ten days surprising. While changes on the bowel were hard to decide to resection, there are bioptic picture of mucosal layer in the time described (Fig. 5–9). We have written about similar case of young man with Waldayer hernia in 1999.

        Key words: intestinal ischaemia – mesenteria ischaemia – non-occlusive ischaemia – malrotation – antimicrobial peptides – diagnosis and treatment