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81.
Raymond N. Haddad MD Ahmed Adel Hassan MD Mahmoud AL Soufi MD Mohamed Kasem MD 《Catheterization and cardiovascular interventions》2023,101(1):131-134
Bioresorbable scaffolds (BRS) have been advocated as the fourth revolution in interventional cardiology medical devices with promising technology to improve the treatment of coronary artery disease with an event-free future. We describe the first reported use and early collapse of the Magmaris® Resorbable Magnesium Scaffold (RMS) stent (BIOTRONIK AG, Switzerland) to relieve left pulmonary artery severe stenosis in a newborn after the Norwood procedure. The stent collapse was detected 2 weeks after implantation and urgently treated with a balloon-expandable stent. This complication raises the alarm about the need to keep implanted RMS under scrutiny. The possibility of faster scaffold resorption in small babies or lack of sufficient radial force of RMS to resist acute vessel recoil has led to ineffective relief of branch pulmonary artery stenosis and failure to enable a safe short-term bridge to Stage II palliation. 相似文献
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Neis Vivian B. Werle Isabel Moretti Morgana Rosa Priscila B. Camargo Anderson de O. Dalsenter Yasmim Platt Nicolle Rosado Axel F. Engel William D. de Almeida Gudrian Ricardo L. Selhorst Ingrid Dafre Alcir Luiz Rodrigues Ana Lúcia S. 《Metabolic brain disease》2022,37(5):1597-1608
Metabolic Brain Disease - Cholecalciferol deficiency has been associated with stress-related psychiatric disorders, particularly depression. Therefore, the present study investigated the... 相似文献
84.
KHALID AL‐SHIBLI SAMER AL‐SAAD SIGVE ANDERSEN TOM DONNEM ROY M. BREMNES LILL‐TOVE BUSUND 《APMIS : acta pathologica, microbiologica, et immunologica Scandinavica》2010,118(5):371-382
Al‐Shibli K, Al‐Saad S, Andersen S, Donnem T, Bremnes RM, Busund L‐T. The prognostic value of intraepithelial and stromal CD3‐, CD117‐ and CD138‐positive cells in non‐small cell lung carcinoma. APMIS 2010; 118: 371–82. The major value of prognostic markers in potentially curable non‐small cell lung carcinoma (NSCLC) should be to guide therapy after surgical treatment. Although tumor‐infiltrating T lymphocytes and plasma cells have been documented in NSCLC, a clear association with clinical outcome, especially for the stromal component, has not been well established. The aim of this study was to elucidate the prognostic significance of these cells/markers in the epithelial and stromal compartments of NSCLC. Tissue microarrays from 335 resected, stage I‐IIIA, NSCLC were constructed by duplicate cores from viable neoplastic epithelial and stromal areas. Immunohistochemistry was used to evaluate the infiltration of CD3+, CD117+ as well as CD138+ cells in epithelial and stromal areas. In univariate analyses, increasing numbers of stromal CD3+ (p = 0.001) and epithelial CD3+ cells (p = 0.004) correlated significantly with an improved disease‐specific survival. No such relation was noted with CD3+ or CD117+ cells. In the multivariate analysis, stromal CD3+ cells was an independent prognostic factor for disease‐specific survival (HR 1.925, CI 1.21–3.04, p = 0.005). Increased presence of the pan T‐cell marker, CD3, which is an independent factor, correlates with improved clinical outcome in NSCLC. This prognostic impact of T cells is clearer in the tumor stroma. Neither plasma cells nor mast cells were prognostic indicators in our cohort. 相似文献
85.
The value of cross-sectional echocardiography in the diagnosisof tricuspid valve stenosis is not clearly established. We prospectivelystudied by cardiac catheterization 42 consecutive patients,with a mean age of 29 ± 11 years, who exhibited the cross-sectionalechocardiographic features of tricuspid valve stenosis, definedas: diastolic doming of all three tricuspid leaflets and leafletthickening with restrictive motion. To expose occult and amplifyborderline tricuspid diastolic gradients, simultaneous rightatrial and right ventricular pressures were recorded in thebasal state, after incremental infusions of normal saline to200,400,500, 700 or 1000 ml until a mean right atrial pressureof 12 mmHg was achieved, and finally after intravenous administrationof 0.6 mg of atropine. Eighteen patients, Group 1, (43%) exhibitedmean tricuspid diastolic gradients >2mmHg after saline infusion,increasing from a mean of4 ± 2 to 9 ± 3 mmHg,(P <0.001), 14 (33%) having gradients <2mmHg in the basalstate, together with four (10%) increasing from 1.7 ±0.2 to 4.5 ± l.2 mmHg (P <0.01) after provocationwith fluid challenge. In the remaining 24 patients, Group 2,(57%) the mean tricuspid diastolic gradient was <2 mmHg,both at rest and after provocative manoeuvres. We conclude thatthe cross-sectional echocardiographic features of tricuspidvalve stenosis are not a precise indicator of tricuspid valvestenosis. Provocative manoeuvres during haemodynamic studiesare required to expose occult or amplify borderline tricuspiddiastolic gradients in a minority of patients with the cross-sectionalechocardiographic features of tricuspid stenosis. 相似文献
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Summary The use of three‐dimensional (3D) models of the dentition obtained from cone beam computed tomography (CBCT) is becoming increasingly more popular in dentistry. A recent trend is to replace the traditional dental casts with digital CBCT models for diagnosis, treatment planning and simulation. The accuracy of these models was previously assessed through comparing linear physical and radiographical measurements. However, this assessment technique is both observer and landmark dependent. The accuracy of 3D CBCT teeth reconstructions is yet to be reliably measured. To assess the accuracy of 3D CBCT reconstructions of the teeth using a semi‐automated and observer‐independent method and to assess the influence of field of view (FoV) selection on reconstruction accuracy. Fully dentate upper and lower dry human jaws, placed in a plastic box and immersed in water, were scanned using CBCT with small, medium and large FoV. The teeth were then scanned separately using MicroCT. Cone beam computed tomography and MicroCT 3D teeth models were compared, and mean surface difference was calculated per tooth for each FoV. Mean and (maximum) differences between MicroCT and CBCT were 120 ± 40 (max. 679) μm, 157 ± 39 (max. 824) μ and 207 ± 80 (max. 862) μm for the small, medium and large FoV, respectively. Cone beam computed tomography models were larger than MicroCT because of larger voxel size. Our results indicate that CBCT may provide accurate 3D reconstructions of the teeth that can be useful for some clinical applications. 相似文献
89.
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
90.
LM Paes da Silva Ramos Fernandes R Ordinola-Zapata MA Húngaro Duarte AL Alvares Capelozza 《Dento maxillo facial radiology》2013,42(1):80179163