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Biomedsearch home advanced search tools search tutorial login | create free account document detail   presacral haemorrhage during rectal cancer resection: morphological and hydrodynamic considerations. happens if women use viagra Medline citation: pmid:â  22405887 â â â  owner:â  nlm â â â  status:â  publisher â â â  abstract/otherabstract: introduction: our aim is to identify the location and size of the anterior foramina of sacral vertebral bodies and analyse the haemodynamic variables that could influence the haemorrhagic severity of the injury of the presacral venous plexus. cheap viagra Materials and methods: using computed axial tomography the morphological data of 70 sacral bones in 67 patients with rectal cancer were recorded, as well as measuring the height between the vena cava and s5. After transfemoral catheterisation the inferior vena cava pressure was recorded in 10 patients with rectal cancer. buy viagra Hydrodynamic principles, according to bernoulli's law, were applied to calculate sacral venous plexus pressure, and the flow rate according to the calibre of a hypothetical venous injury. Results: the maximum diameter ranged from 0. viagra generic soft tabs no brasil 5mm to 4mm in 22% of the cases. All foramina of 2 or more millimetres were located in the s4-s5 region. Sacral plexus venous pressure in lithotomy was almost double the inferior vena cava pressure in normal position. Blood flow ranged from 498 to 1,994ml/min for injuries of sizes between 2 and 4mm, respectively. happens if women use viagra Conclusions: larger calibre foramina are found in vertebral bodies of s4-s5. Venous injury at these levels can reach a flow rate of 2 l/min. happens if women use viagra Authors: josã© enrique casal nuã±ez; marã­a teresa garcã­a martinez; alejandro ruano poblador; juan antonio sã¡nchez conde; josã© luis pampã­n medela; enrique moncada iribarren; alberto de sanildefonso pereira related documents : 22327657â -â the linear relationship between transcranial doppler pulsatility indices and intracrani... 7711467â -â atrial natriuretic peptide response to postural change and medication in familial dysau... 1837197â -â the relationship between atrial pressure, atrial dimensions and atrial natriuretic fact... viagra without a doctor prescription 19863867â -â hypertension and atrial fibrillation. 22559787â -â changes of intraocular pressure during experimental vitrectomy. generic viagra from india safety 10993797â -â renal sna as the primary mediator of slow oscillations in blood pressure during hemorrh... buy viagra canada Publication detail: type:. online generic viagra buy viagra usa Brazilian Jiu-Jitsu - Kickboxing - Self-Defense
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