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Management of resistant hypertension: Aldosterone antagonists or intensification of diuretic therapy? 下载免费PDF全文
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LM Paes da Silva Ramos Fernandes R Ordinola-Zapata MA Húngaro Duarte AL Alvares Capelozza 《Dento maxillo facial radiology》2013,42(1):80179163
Objectives
The aim of this study was to determine the prevalence of apical periodontitis (AP) detected in cone beam CT (CBCT) images from a database.Methods
CBCT images of 300 Brazilian patients were assessed. AP images were measured in three dimensions. Age, gender, number and location of total teeth in each patient were considered. AP location was considered according to tooth groups. The extent of AP was determined by the largest diameter in any of the three dimensions. Percentages and the χ2 test were used for statistical analysis.Results
AP was found in 51.4% of the patients and in 3.4% of the teeth. Higher prevalence of AP was found in 60- to 69-year-olds (73.1%) and in mandibular molars (5.9%) (p < 0.05). Inadequate endodontic treatment presented higher prevalence of AP (78.1%).Conclusions
AP can be frequently found in CBCT examinations. The presence of AP has a significant association with patients'' age, and tooth type and condition. CBCT databases are useful for cross-sectional studies about AP prevalence in a population. 相似文献65.
Daniels DL; Czervionke LF; Millen SJ; Haberkamp TJ; Meyer GA; Hendrix LE; Mark LP; Williams AL; Haughton VM 《Radiology》1989,171(3):807-809
The authors evaluated magnetic resonance (MR) images obtained with intravenously administered gadolinium in ten patients who had facial paralysis and no facial nerve tumor. In patients with either Bell palsy (four patients) or facial paralysis after temporal bone surgery (six patients), intratemporal facial nerve enhancement was seen. Facial nerve enhancement on MR images proved to be a nonspecific finding. 相似文献
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K. AL Qahtani A.F. Alkhudhayri T. Islam K. Al Mufargi W. Al Shakweer F. Otaibi 《Saudi Journal of Ophthalmology》2019,33(1)
Unicystic Ameloblastoma (UA) is a rare variant of ameloblastoma which is an odontogenic epithelial neoplasm, typically affecting mandibular ramus. Maxillary ameloblastoma is a rare entity with a more disastrous consequence. Although extremely rare, their highly recurrent and locally aggressive behavior can lead to invasion of vital structures surrounding maxilla (orbit, cranium) even after several years of conservative surgical management (limited resection, curettage). We report a case of 16-year-old girl presenting with proptosis of left eye, UA left maxilla, who was treated initially with limited resection (enucleation) and curettage and the lesion recurred after two years with a more aggressive behavior, causing destruction floor of orbit. To this date there are only 23 documented cases of orbital invasion and only three of the reports are in ophthalmic literature. The ophthalmologists need to be aware of this type of rare lesion presenting as proptosis. 相似文献
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Ivana Y Kuo Anthie Ellis Victoria AL Seymour Shaun L Sandow Caryl E Hill 《Journal of cerebral blood flow and metabolism》2010,30(6):1226-1239
Although dihydropyridines are widely used for the treatment of vasospasm, their effectiveness is questionable, suggesting that other voltage-dependent calcium channels (VDCCs) contribute to control of cerebrovascular tone. This study therefore investigated the role of dihydropyridine-insensitive VDCCs in cerebrovascular function. Using quantitative PCR and immunohistochemistry, we found mRNA and protein for L-type (CaV1.2) and T-type (CaV3.1 and CaV3.2) channels in adult rat basilar and middle cerebral arteries and their branches. Immunoelectron microscopy revealed both L- and T-type channels in smooth muscle cell (SMC) membranes. Using patch clamp electrophysiology, we found that a high-voltage-activated calcium current, showing T-type channel kinetics and insensitivity to nifedipine and nimodipine, comprised ∼20% of current in SMCs of the main arteries and ∼45% of current in SMCs from branches. Both components were abolished by the T-type antagonists mibefradil, NNC 55-0396, and efonidipine. Although nifedipine completely blocked vasoconstriction in pressurized basilar arteries, a nifedipine-insensitive constriction was found in branches and this increased in magnitude as vessel size decreased. We conclude that a heterogeneous population of VDCCs contributes to cerebrovascular function, with dihydropyridine-insensitive channels having a larger role in smaller vessels. Sensitivity of these currents to nonselective T-type channel antagonists suggests that these drugs may provide a more effective treatment for therapy-refractory cerebrovascular constriction. 相似文献
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