نتایج جستجو برای: stenosis
تعداد نتایج: 64914 فیلتر نتایج به سال:
We report the case of a 23-year-old woman who died due to endograft stenosis 20 months after thoracic endovascular aortic repair. The patient presented with the pseudocoarctation syndrome. Although angioplasty of stenosis endograft was successfully performed, severe metabolic complications were lethal.
Background & Aim: Serum paraoxonase (PON1) is an HDL (high density lipoprotein) associated esterase that prevents the oxidation of LDL (low density lipoprotein). A common polymorphism in coding region of the paraoxonase gene involving a Gln (Q) to Arg (R) interchange at position 192 has been demonstrated to affect PON1 activity. It has been shown that R alloenzyme is less efficient at prevent...
Background: Prolonged endotracheal intubation is a growing method for supporting ventilation in patients who require intensive care. Despite considerable advancement in endotracheal intubation, this method still has some complications the most important is laryngo-tracheal injuries. Methods: Over a 2-year period, this retrospective study was conducted on 57 patients with hist...
introduction: acquired tracheal stenosis can be created by various malignant or benign causes. the most common cause of acquired non-malignant tracheal stenosis is endotracheal intubation, even for a short period. argon plasma coagulation is a non-contact method of thermal hemostasis. argon plasma coagulation can be used easily and fast and has low depth of penetration. methods: this study is ...
Heart murmurs are a common finding during physical examination of children but most of them are innocent or normal.recognizing the etiology of heart murmurs can help us in differential diagnosis of them.the peresent study was undertaken to determine the prevalence and etiology of heart murmurs in 4761 school children.the sex ratio was nearly 1:1 ,murmurs were heard in 459 students (9.64%) with...
context lumbar central spinal stenosis is common and often results in chronic persistent pain and disability, which can lead to multiple interventions. after the failure of conservative treatment, either surgical or nonsurgical modalities such as epidural injections are contemplated in the management of lumbar spinal stenosis. evidence acquisition recent randomized trials, systematic reviews an...
conclusions full echocardiographic examination of the right ventricle, including rvot is essential for the diagnosis of this disease. surgical correction appears to be a successful strategy for management of this rare condition in adults. case presentation we report a 40-year-old man who was referred to cardiology clinic for work-up of dyspnea and a heart murmur found on his physical examinatio...
a twenty-year-old girl was referred with tracheal stenosis (ts) which was a consequence of prolonged intubation after head injury because of previous car accident. the patient was aphasic and had normal respiration. fiberoptic bronchoscopy showed complete tracheal obstruction at second tracheal ring level. distal trachea was normal through tracheostomy tube. removal of the tracheostomy tube and...
in this study, flow characteristics through symmetric stenosis artery are investigated. the shape of eccentricity for stenotic flows is limited by circular-cross sections and plaques are usually assumed as to be oriented concentrically. thegoverningequationsaretheusualnavier-stokesequationsandare numericallysolved by using finite volumemethod in arbitrary orthogonal curvilinear coordinates. in ad...
introduction: in order to assess our skill in the tubularized incised plate (tip) urethroplasty technique in children with hypospadias. material andmethods: of 307 children (mean age 38 month) who received a tip urethroplasty, all had primary hypospadias. patients who were referred with complication were eliminated from our study. the hypospadias defects were subcoronal in 25 (8%), distal penil...
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