Evaluation of palate area before and after rapid maxillary expansion, using cone-beam computed tomography

Conclusions: RME promotes a significant gain in the surface area of the palate and an increase in intermolar width. The Hyrax appliance was effective for the treatment of maxillary atresia in growing patients. There was no vertical alteration of the palate . After a 6-month retention period, the maxilla transverse dimension and the surface area of the palate remained stable.RESUMO Objetivo: o objetivo do presente estudo foi estimar a altera ção na área do palato após expansão rápida da maxila (ERM) com o expansor Hyrax em indivíduos em crescimento, utilizando tomografia computadorizada de feixe cônico (TCFC). Métodos: quatorze pacientes (9 meninas e 5 meninos; idade média 11,7± 2,4 anos) que necessitavam de ERM como parte d e seu tratamento ortodôntico foram incluídos nesse estudo. Os registros de TCFC foram obtidos antes do tratamento com ERM (T0), ao término da expansão ativa (T1) e após um período de contenção de 6 meses (T2). Os exames de TCFC foram manipulados no software Dolphin Imaging® versão 11.7 Pre mium, no qual os pontos anatômicos foram posicionados e medidos em relação aos planos sagital, coronal e axial, para verificar-se a área de superfície do palato. Além disso, medidas lineares da profundidade e largura do palato foram avaliadas. Essas medidas foram comparadas por anális...
Source: Dental Press Journal of Orthodontics - Category: Dentistry Source Type: research

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Congenital TEFs without esophageal atresia are rare but may occur more frequently than previously documented in literature. Careful history is required to suspect the diagnoses, as most patients will present with coughing associated with solid or liquids, recurrent unexplained pulmonary infections and complaints with eating. Some patients may show signs of chronic airway changes from recurrent aspiration pneumonia at the time of presentation. Diagnosis is challenging, with multiple imaging modalities including x ray, CT scan and esophogram able to identify a fistula.
Source: Clinical Imaging - Category: Radiology Authors: Tags: Pediatric Radiology Source Type: research
Conclusions: we propose the description of large sample of pediatric patients with congenital bronchopulmonary malformations, followed from one Center. Chest CT and LTBS are important investigation in congenital airway anomalies.
Source: European Respiratory Journal - Category: Respiratory Medicine Authors: Tags: Paediatric bronchology Source Type: research
Objective: To assess the association of middle ear volume with long-term hearing outcomes in congenital aural atresia (CAA) repair. Study Design: Retrospective chart and radiological review. Setting: Single academic tertiary referral center. Patients: Children and adults who underwent CAA repair between 1995 and 2016. Patients were divided into “best” and “worst” audiometric groups, based on stability of postoperative air conduction pure-tone average (AC PTA) results. Ten patients were included for study in the “best” group, and 12 in the “worst” group. Interventi...
Source: Otology and Neurotology - Category: ENT & OMF Tags: PEDIATRIC OTOLOGY Source Type: research
Abstract Round window atresia (RWA) is an uncommon condition and can result in a conductive hearing loss. Two cases of nonsyndromal bilateral RWA in 2 members of the same family are reported. Both cases presented with a conductive hearing loss of 20 to 30 dB. High-resolution computed tomography scanning was used to diagnose the condition. The patients were rehabilitated with hearing aids. Review of the literature has shown disappointing results in hearing improvement with cochlear fenestration in an attempt to address this condition. Patients presenting with unexplained conductive hearing loss should be offered co...
Source: Ear, Nose and Throat Journal - Category: ENT & OMF Authors: Tags: Ear Nose Throat J Source Type: research
BACKGROUND AND PURPOSE: Midnasal stenosis is a poorly defined entity that may be a component of other conditions of nasal obstruction contributing to respiratory distress in infants. We sought to establish whether midnasal vault narrowing is a component of well-defined syndromes of nasal narrowing, such as bilateral choanal atresia and pyriform aperture stenosis, and to characterize the nasal anatomy of patients with syndromic craniosynostosis. MATERIALS AND METHODS: A convenience sample of patients with pyriform aperture stenosis, bilateral choanal atresia, and Apert and Crouzon syndromes with maxillofacial CT scans was ...
Source: American Journal of Neuroradiology - Category: Radiology Authors: Tags: HEAD & amp; NECK Source Type: research
AbstractA case of 7  day old male child, born at 36 weeks, presented with feeding difficulties, hypothermia and failure to thrive. After clinical examination to rule out any gross congenital anomalies, CT scan was done which was suggestive of pyriform aperture stenosis. It was surgically dilated and stented successfu lly.
Source: Indian Journal of Otolaryngology and Head and Neck Surgery - Category: ENT & OMF Source Type: research
We present a case of a 28-year old woman who presented with bizarre wheezing breath sounds on expiration and dysphagia, with unexplained significant dilation of the esophagus mimicking achalasia finally leading to the diagnosis of a very small congenital tracheoesophageal fistula (TEF). Congenital TEF is usually detected shortly after birth and is typically accompanied by esophageal atresia. Congenital TEF without esophageal atresia (H-type fistula) can be missed in early life and diagnosis may be postponed until adulthood due to subtle symptoms. Diagnosis is usually based upon a combination of esophagoscopy, bronchoscopy,...
Source: Acta Gastro-Enterologica Belgica - Category: Gastroenterology Tags: Acta Gastroenterol Belg Source Type: research
ConclusionsUPAA presents classically with hemoptysis, but also with pneumonia, pulmonary hypertension, or incidentally. Management includes selective collateral embolization, pneumonectomy, or medical management directed towards decreasing pulmonary hypertension in patients unable to tolerate pneumonectomy due to comorbidities. Pneumonectomy in these patients is characterized by dense and hypervascular adhesions, with large volume blood loss expected during adhesiolysis, which can be decreased with pre-operative embolization. Outcomes are typically excellent in otherwise healthy patients.
Source: Respiratory Medicine Case Reports - Category: Respiratory Medicine Source Type: research
ConclusionsMDT approach to complex cases is becoming increasingly common across all specialties and is important in making decisions in these difficult cases. The benefits include shared experience of rare cases and full access to multidisciplinary expertise.
Source: Pediatric Surgery International - Category: Surgery Source Type: research
AbstractA comprehensive understanding of the native pulmonary blood supply is crucial in newborns with pulmonary atresia with ventricular septal defect and aortopulmonary collaterals (PA/VSD/MAPCA). We sought to describe the accuracy in terms of identifying native pulmonary arteries, radiation dose and anaesthetic time associated with multi-modality imaging in these patients, prior to their first therapeutic intervention. Furthermore, we wanted to evaluate the cumulative radiations dose and anaesthetic time over the study period. Patients with PA/VSD/MAPCA diagnosed at
Source: Pediatric Cardiology - Category: Cardiology Source Type: research
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