Studies on the chemical control of luminous bacteria Vibrio harveyi and V splendidus solated from diseased Penaeus monodon arvae and rearing water

Abstract

Object. An aneurysm arising from the anterior wall of the internalcarotid artery (ICA) is a poorly understood entity. A smallhemispherical bulge from the anterior wall of the ICA, which is called a``blood blisterlike aneurysm{''} (BBA), may be confused with a tinyberry aneurysm although the clinical features are distinctly different.This paper summarizes the clinical course of patients with this lesionto clarify the nature of the BBA.Methods. Six patients with BBAs who presented with subarachnoidhemorrhage (SAH) are described. In all patients, the initial angiogramobtained soon after SAH showed only a small bulge from the anterior wallof the ICA. In three of the six patients this bulge had progressed to asaccular appearance within a few weeks. The wall of the lesion was sothin and fragile that the aneurysm ruptured at the base during clippingor within a few hours after clipping in two patients.Conclusions. From the authors' experience, as well as a review of theliterature, which includes an autopsy study of similar cases, it isinferred that these lesions are focal wall defects covered only withthin fibrous tissue and that they are therefore not true aneurysms.Direct clipping often causes laceration of the lesion, whereas completewrapping or clipping after wrapping is effective, but may fail toprevent growth of the aneurysm. Endovascular occlusion of the cervicalICA with or without bypass surgery, which is less risky than directsurgery, is another option.