1/48. Pressure-controlled inverse-ratio synchronised independent lung ventilation for a blast wound to the chest.Massive unilateral pulmonary injury poses a severe ventilatory problem. We used pressure-controlled, inverse-ratio, independent lung ventilation for a shotgun injury. Two synchronised Siemens Servo 900C ventilators were connected to a double lumen endotracheal tube. Arterial pO2 tripled in 15 minutes, and the patient remained on SILV for 36 hours.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
2/48. Fatal neck injuries caused by blank cartridges.We report three cases where fatal neck injuries were caused by blanks from starting pistols. The weapons were loaded with blank cartridges or tear gas cartridges. Neither live ammunition nor any form of projectile was used. All three cases involved a contact discharge. The gas pressure caused by firing the weapons created extensive wound cavities in all three cases. Each victim died from blood loss as a result of ruptured cervical vessels; there were no air embolisms. In one case, a man shot himself eight times with two different starting pistols, and the wounds could be matched to each gun by the muzzle imprint marks on the neck.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
3/48. Carotid artery-sygmoid sinus fistula: a rare complication of gunshot wound on the base of the cranium.Vascular lesions without clinical manifestation may occur in cranial-facial wounds produced by bullets that course the base of the cranium. This work describes a rare kind of vascular complication in cranial-facial gunshot wound. The authors present the case of a patient, the victim of a cranium-maxillary gunshot wound. Carotid angiography revealed a carotid-sygmoid sinus fistula that filled the sygmoid and transverse sinuses, concomitant to the arterial angiographic phase. A direct communication between the external carotid artery and the sygmoid sinus was disclosed. We are not aware of any other description of this vascular complication in cranial gunshot wound. It is important to recognize this kind of complication in cases of cranial-facial gunshot wound, because new factors harmful to the brain perfusion systems are introduced, in addition to the alterations to venous return and intracranial pressure, caused by the primary trauma. The new non-invasive vascular diagnostic methods are proving useful in filling the gap left by arteriography, which is no longer used in these cases.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
4/48. Catecholamine-induced hypertension in lumbosacral paraplegia: five case reports.hypertension in the patient with SCI is relatively rare and generally restricted to patients with high-level injuries where autonomic dysreflexia can occur. Resting blood pressure in individuals with SCI has been described as lower than that in the normal population. This report describes five previously normotensive teenagers with subsequent paraplegia as a result of gunshot wounds who presented with hypertension secondary to idiopathic elevation of plasma or urinary catecholamine levels. A clonidine suppression test was used as a neuroprobe to inhibit centrally mediated sympathetic outflow, excluding the probability of an extra-axial autonomous catecholamine-secreting tumor as the possible source of hypertension. Positive suppression was achieved in four patients (41%, 37.2%, 4.8%, and 37.2% decreases). One patient had values corresponding to orthostatic changes (an increase of 63%) because of poor compliance with the test. This patient was lost to follow-up; in the remaining four, hypertension resolved at 12, 8, 9, and 6 weeks postinjury. The increased circulating catecholamine level appears to be promoted by a centrally mediated response to the SCI. Elevated blood pressure probably results from an upgraded receptor regulation or an increased receptor sensitivity on the affected cells in the absence of restraining spinal reflexes. The pathophysiology of such hypertension seems to be secondary to autonomic dysfunction and, although it may be transient, it should be treated promptly and reevaluated periodically until stabilization is achieved.- - - - - - - - - - ranking = 2keywords = pressure (Clic here for more details about this article) |
5/48. Fatal air embolism during thoracotomy for gunshot injury to the lung. Report of a case.Fatal coronary air embolism occurred during thoracotomy in a patient with a gunshot wound involving the hilum of the right lung. embolism was observed during a second period of failure of heart action. Evidently, air entered the pulmonary veins from the bronchus, which was receiving positive-pressure ventilation. The literature contains reports of only 3 similar cases, but we suspect that air embolism may be responsible for death and morbidity in additional cases in which accidental or iatrogenic lung trauma has produced a pathway between the bronchial tree and the pulmonary veins.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
6/48. nitric oxide usage after posttraumatic pneumonectomy.pneumonectomy is rarely required in the surgical management of thoracic traumatic injuries with high mortality rates. Right heart failure due to elevated pulmonary artery pressure and the adult respiratory distress syndrome have been leading causes of mortality reported after posttraumatic pneumonectomy. The beneficial effect of inhaled nitric oxide has been shown in pulmonary hypertension and in adult respiratory distress syndrome. We report the use of inhaled nitric oxide in the perioperative management of a patient undergoing emergent pneumonectomy.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
7/48. Axillary-femoral bypass graft patency without aorto-femoral pressure differential: disuse atrophy of ipsilateral ileo-femoral segment.Differential aorto-femoral pressure gradient is not required to assure axillary-femoral bypass graft patency for a brief period of time. One-hundred twenty-three days elapsed from axillary-femoral graft construction to elective removal of the functioning conduit in an individual without aorto-femoral pressure differential. During this time, reversible "disuse atrophy" of the ipsilateral ileo-femoral arterial system occurred. It is suggested that phasic differences in pulse wave propagation between the aorto-iliac-femoral and axillary-femoral circuits maintained graft patency and accompanying decreased flow volume in the ileo-femoral arterial circuit resulted in "disuse atrophy."- - - - - - - - - - ranking = 6keywords = pressure (Clic here for more details about this article) |
8/48. Compartment syndrome in multiple uninjured extremities: a case report.Compartment syndrome is a common problem in trauma patients. It can occur within any space bound by a dense fascial layer, such as the extremities or abdomen. It exists when increased tissue pressure within the limited anatomic space compromises perfusion. Failure to decompress the compartment leads to a self-perpetuating ischemia-edema process and resultant irreversible tissue damage. In the extremities, it typically arises from a vascular injury in that same extremity. Herein is reported a case of the unexpected development of compartment syndrome in multiple uninjured extremities in a trauma patient with hypotension requiring systemic vasopressors.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
9/48. Bullets and biliptysis.Biliptysis is a dramatic physical finding which suggests the presence of a direct communication (fistula) between the biliary and bronchial tree. We report a bronchial biliary fistula resulting from penetrating thoracoabdominal trauma and the use of positive-pressure ventilation to obtain initial fistula control prior to definitive surgical repair.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
10/48. head injury by gunshots from blank cartridges.BACKGROUND: Blank cartridge handguns are generally underestimated in their capacity to inflict serious and potentially life threatening injuries. The predominant reasons for these injuries are suicide or suicide attempts, followed by accidental injuries. methods: A series of 26 gas gunshots to the neurocranium is presented. The injury pattern relevant to neurosurgical practice is illustrated in a case summary of 7 selected cases and the clinical courses as well as outcomes are presented. RESULTS: The injury pattern demonstrates that the energy density of the gas jet and the high temperatures of the exploding gas volume cause extensive soft tissue injuries. In close-range shots the gas jet takes on physical properties of a projectile. In these injuries impression fractures and dislocation of bone fragments are common. CONCLUSIONS: Gas handguns, contrary to public opinion, are dangerous weapons and may inflict potentially fatal injuries to the neurocranium when fired at close range. These weapons are frequently used in criminal or careless activities predominantly by young males. Extensive CNS injuries including hematomas, subarachnoid hemorrhage, foreign body contamination, and increased intracranial pressure are frequently observed.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
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