Gastrointestinal perforation is a common cause of acute abdomen due to peritonitis. The etiology and pathophysiology gastrointestinal perforations varied can range from small prepyloric that relatively clean transection or large bowel with spillage contents in peritoneum gross contamination. Some these are more than others. Here we present 6 cases rare presenting us the casualty, their manageme...

Synchrotron-generated X-ray (SRX) microbeams deposit high radiation doses to submillimetric targets whilst minimizing irradiation of neighboring healthy tissue. We developed a new radiosurgical method which demonstrably transects cortical brain tissue without affecting adjacent regions. We made such image-guided SRX microtransections in the left somatosensory cortex in a rat model of generalize...

Insects and mammals cut their food up into small pieces to facilitate ingestion and chemical digestion. Teeth and jaws act as cutting tools, but, unlike engineering tools designed for a specific purpose, must generally cope with substantial variation in food properties and work at many scales. Knowing how teeth and jaws work effectively requires an understanding of the cutting on the edges and ...

I n a prior communication we demonstrated that transection of the optic nerve of the cat with consequent retrograde neuronal degeneration did not lead to alteration of the ipsilateral retinal vasculature. We interpreted this to mean that retinal neuronal degeneration does not, of itself, cause an associated vascular degeneration. In the present study the vasculature of the optic disc region of ...

Although innominate artery transection for innominate artery compression of the trachea is recently used for prevention of life-threatening complications (e.g. massive bleeding and obstructive apnoea) in patients with neurological disorders, pre-existing tracheostomy poses a risk of mediastinal infection with sternotomy. We successfully performed innominate artery transection on such a patient ...

Changes in epidurally induced (S1) spinal cord reflexes were studied as a function of the level of restoration of stepping ability after spinal cord transection (ST). Three types of responses were observed. The early response (ER) had a latency of 2.5 to 3 ms and resulted from direct stimulation of motor fibers or motoneurons. The middle response (MR) had a latency of 5 to 7 ms and was monosyna...

In their excellent article, “Robotic Follicular Unit Extraction in Hair Transplantation,” Avram and Watkin give a review of the salient aspects of the newly evolving field of robotic hair transplantation. A significant contribution of this article is the data on transection rates. The authors found that the mean transection rate of robotic extraction is 6.6% in their 20 cases. This compares fav...

In order to study the role of ciliary neurotrophic factor (CNTF) and its receptor (CNTF-R) in the response of spinal cord neurons to axotomy, we measured the levels of CNTF mRNA in nerve and CNTF-R mRNA in spinal cord following transection of sciatic nerve, using reverse transcriptase PCR. We found CNTF mRNA levels in the nerve fell and that CNTF-R mRNA levels in spinal cord increased at both 1...