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1.
Comput Biol Med ; 176: 108566, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38744016

RESUMO

Deviations of the septal wall are widespread anatomic anomalies of the human nose; they vary significantly in shape and location, and often cause the obstruction of the nasal airways. When severe, septal deviations need to be surgically corrected by ear-nose-throat (ENT) specialists. Septoplasty, however, has a low success rate, owing to the lack of suitable standardized clinical tools for assessing type and severity of obstructions, and for surgery planning. Moreover, the restoration of a perfectly straight septal wall is often impossible and possibly unnecessary. This paper introduces a procedure, based on advanced patient-specific Computational Fluid Dynamics (CFD) simulations, to support ENT surgeons in septoplasty planning. The method hinges upon the theory of adjoint-based optimization, and minimizes a cost function that indirectly accounts for viscous losses. A sensitivity map is computed on the mucosal wall to provide the surgeon with a simple quantification of how much tissue removal at each location would contribute to easing the obstruction. The optimization procedure is applied to three representative nasal anatomies, reconstructed from CT scans of patients affected by complex septal deviations. The computed sensitivity consistently identifies all the anomalies correctly. Virtual surgery, i.e. morphing of the anatomies according to the computed sensitivity, confirms that the characteristics of the nasal airflow improve significantly after small anatomy changes derived from adjoint-based optimization.


Assuntos
Septo Nasal , Humanos , Septo Nasal/cirurgia , Septo Nasal/diagnóstico por imagem , Septo Nasal/anormalidades , Tomografia Computadorizada por Raios X , Simulação por Computador , Masculino , Feminino , Obstrução Nasal/cirurgia , Obstrução Nasal/diagnóstico por imagem , Obstrução Nasal/fisiopatologia , Hidrodinâmica
2.
Otolaryngol Head Neck Surg ; 170(6): 1696-1704, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38461407

RESUMO

OBJECTIVE: Mucosal decongestion with nasal sprays is a common treatment for nasal airway obstruction. However, the impact of mucosal decongestion on nasal aerodynamics and the physiological mechanism of nasal airflow sensation are incompletely understood. The objective of this study is to compare nasal airflow patterns in nasal airway obstruction (NAO) patients with and without mucosal decongestion and nondecongested healthy subjects. STUDY DESIGN: Cross-sectional study of a convenience sample. SETTING: Academic tertiary medical center. METHODS: Forty-five subjects were studied (15 nondecongested healthy subjects, 15 nondecongested NAO patients, and 15 decongested NAO patients). Three-dimensional models of the nasal anatomy were created from computed tomography scans. Steady-state simulations of airflow and heat transfer were conducted at 15 L/min inhalation rate using computational fluid dynamics. RESULTS: In the narrow side of the nose, unilateral nasal resistance was similar in decongested NAO patients and nondecongested healthy subjects, but substantially higher in nondecongested NAO patients. The vertical airflow distribution within the nasal cavity (inferior vs middle vs superior) was also similar in decongested NAO patients and nondecongested healthy subjects, but nondecongested NAO patients had substantially less middle airflow. Mucosal cooling, quantified by the surface area where heat flux exceeds 50 W/m2, was significantly higher in decongested NAO patients than in nondecongested NAO patients. CONCLUSION: This pilot study suggests that mucosal decongestion improves objective measures of nasal airflow, which is consistent with improved subjective sensation of nasal patency after decongestion.


Assuntos
Descongestionantes Nasais , Mucosa Nasal , Obstrução Nasal , Humanos , Projetos Piloto , Obstrução Nasal/fisiopatologia , Masculino , Feminino , Descongestionantes Nasais/administração & dosagem , Estudos Transversais , Adulto , Mucosa Nasal/fisiologia , Pessoa de Meia-Idade , Tomografia Computadorizada por Raios X , Sprays Nasais , Resistência das Vias Respiratórias/fisiologia
3.
Facial Plast Surg ; 40(3): 341-344, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38301716

RESUMO

Assessing patients with complaints of nasal obstruction has traditionally been done by evaluation of the nasal airway looking for fixed or dynamic obstructive locations that could impair nasal airflow. Not infrequently, however, symptoms of nasal obstruction do not match the clinical examination of the nasal airway. Addressing this subset of patients may be a challenge to the surgeon. Evaluation of patients with symptoms of nasal obstruction should include a combination of a patient-reported assessment of nasal breathing and at least one objective method for measuring nasal airflow or nasal airway resistance or dimensions. This will allow distinction between patients with symptoms of nasal obstruction and low airflow or high nasal airway resistance and patients with similar symptoms but whose objective evaluation demonstrates normal nasal airflow or normal airway dimensions or resistance. Patients with low nasal airflow or high nasal airway resistance will require treatment to increase nasal airflow as a necessary step to improve symptoms, whereas patients with normal nasal airflow or nasal airway resistance will require a multidimensional assessment looking for less obvious causes of impaired nasal breathing sensation.


Assuntos
Resistência das Vias Respiratórias , Algoritmos , Obstrução Nasal , Rinomanometria , Humanos , Obstrução Nasal/diagnóstico , Obstrução Nasal/fisiopatologia , Resistência das Vias Respiratórias/fisiologia , Rinomanometria/métodos
4.
Facial Plast Surg ; 40(3): 268-274, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38331036

RESUMO

Several methods are available for evaluating nasal breathing and nasal airflow, as this evaluation may be made from several different perspectives.Physiologic methods for nasal airway evaluation directly measure nasal airflow or nasal airway resistance, while anatomical methods measure nasal airway dimensions. Subjective methods evaluate nasal breathing through several validated patient-reported scales assessing nasal breathing. Computational fluid dynamics evaluates nasal airflow through the analysis of several physics' variables of the nasal airway.Being familiar to these methods is of utmost importance for the nasal surgeon to be able to understand data provided by the different methods and to be able to choose the combination of evaluation methods that will provide the information most relevant to each clinical situation.


Assuntos
Cavidade Nasal , Respiração , Humanos , Cavidade Nasal/fisiologia , Cavidade Nasal/anatomia & histologia , Cavidade Nasal/fisiopatologia , Resistência das Vias Respiratórias/fisiologia , Obstrução Nasal/fisiopatologia , Obstrução Nasal/cirurgia , Rinomanometria/métodos , Nariz/anatomia & histologia , Nariz/fisiologia , Hidrodinâmica
5.
Facial Plast Surg ; 40(3): 275-286, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38224694

RESUMO

Impairment of nasal breathing is a highly prevalent and bothersome symptom that affects daily functioning and/or sleep quality. Those surgeons dealing with patients seeking rhinoplasty need to carefully analyze the preoperative nasal breathing capacity and predict the positive or even negative impact of rhino(septo)plasty on nasal breathing. Given the lack of correlation between the subjective feeling of suboptimal nasal breathing and the objective measurements of nasal flow and nasal resistance, a critical and mainly clinical evaluation of all anatomical, mucosal, and sensory mechanisms involved in nasal obstruction is mandatory. Indeed, thermo-, mechano-, and chemosensory receptors on the nasal mucosa, airflow, and respiratory dynamics might all contribute to the overall perception of nasal breathing capacity. In this review, we provide an overview of the factors determining suboptimal nasal breathing including different diagnostic and experimental tests that can be performed to evaluate nasal flow and nasal resistance and current limitations in our understanding of the problem of nasal breathing in an individual patient. An algorithm for the preoperative or diagnostic workup for nasal obstruction is included that might be useful as a guide for clinicians dealing with patients seeking nose surgery.


Assuntos
Obstrução Nasal , Rinoplastia , Humanos , Obstrução Nasal/cirurgia , Obstrução Nasal/fisiopatologia , Rinoplastia/métodos , Septo Nasal/cirurgia , Cuidados Pré-Operatórios/métodos , Resistência das Vias Respiratórias/fisiologia , Respiração , Mucosa Nasal/fisiopatologia , Rinomanometria
6.
Facial Plast Surg ; 40(3): 310-313, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38158212

RESUMO

Measuring nasal airflow and nasal breathing has been a major goal of rhinology. Many objective methods for measuring nasal airflow or nasal airway resistance or dimensions provide valuable data but are time-consuming and require expensive equipment and trained technicians, thus making these methods less practical for clinical practice. Peak nasal inspiratory flow (PNIF) measurement is fast, unexpensive, noninvasive, and able to provide an objective evaluation of nasal airflow in real-time. Unilateral PNIF measurements allow separated evaluation of each side of the nasal airway and may prove particularly useful when clinical assessment detects significant asymmetry between both nasal cavities.PNIF measurements are most useful for assessing changes in nasal airflow achieved by any form of therapy, including surgical treatment of the nasal airway. These measurements generally correlate with other objective methods for nasal airway evaluation, but not unequivocally with patient-reported evaluation of nasal breathing. Nevertheless, as low PNIF values prevent the sensation of a suitable nasal breathing, PNIF measurement may also prove useful to optimize the decision of how to best address patients with complaints of nasal airway obstruction.


Assuntos
Obstrução Nasal , Humanos , Obstrução Nasal/fisiopatologia , Obstrução Nasal/cirurgia , Obstrução Nasal/diagnóstico , Resistência das Vias Respiratórias/fisiologia , Rinomanometria/métodos , Cavidade Nasal/fisiopatologia , Cavidade Nasal/fisiologia , Inalação/fisiologia , Respiração , Nariz/anatomia & histologia , Nariz/fisiopatologia , Nariz/fisiologia , Capacidade Inspiratória/fisiologia
7.
PLoS One ; 17(1): e0262579, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35020767

RESUMO

Conductive olfactory dysfunction (COD) is caused by an obstruction in the nasal cavity and is characterized by changeable olfaction. COD can occur even when the olfactory cleft is anatomically normal, and therefore, the cause in these cases remains unclear. Herein, we used computational fluid dynamics to examine olfactory cleft airflow with a retrospective cohort study utilizing the cone beam computed tomography scan data of COD patients. By measuring nasal-nasopharynx pressure at maximum flow, we established a cut-off value at which nasal breathing can be differentiated from combined mouth breathing in COD patients. We found that increased nasal resistance led to mouth breathing and that the velocity and flow rate in the olfactory cleft at maximum flow were significantly reduced in COD patients with nasal breathing only compared to healthy olfactory subjects. In addition, we performed a detailed analysis of common morphological abnormalities associated with concha bullosa. Our study provides novel insights into the causes of COD, and therefore, it has important implications for surgical planning of COD, sleep apnea research, assessment of adenoid hyperplasia in children, and sports respiratory physiology.


Assuntos
Hidrodinâmica , Respiração Bucal/fisiopatologia , Obstrução Nasal/fisiopatologia , Transtornos do Olfato/patologia , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Respiração Bucal/diagnóstico por imagem , Obstrução Nasal/diagnóstico por imagem , Transtornos do Olfato/diagnóstico por imagem , Estudos Retrospectivos , Tomografia Computadorizada por Raios X
8.
Facial Plast Surg Aesthet Med ; 24(1): 20-26, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-33902335

RESUMO

Background: The use of virtual noses to predict the outcome of surgery is of increasing interests, particularly, as detailed and objective pre- and postoperative assessments of nasal airway obstruction (NAO) are difficult to perform. The objective of this article is to validate predictions using virtual noses against their experimentally measured counterpart in rigid 3D-printed models. Methods: Virtual nose models, with and without NAO, were reconstructed from patients' cone beam computed tomography scans, and used to evaluate airflow characteristics through computational fluid dynamics simulations. Prototypes of the reconstructed models were 3D printed and instrumented experimentally for pressure measurements. Results: Correlation between the numerical predictions and experimental measurements was shown. Analysis of the flow field indicated that the NAO in the nasal valve increases significantly the wall pressure, shear stress, and incremental nasal resistance behind the obstruction. Conclusions: Airflow predictions in static virtual noses correlate well with detailed experimental measurements on 3D-printed replicas of patient airways.


Assuntos
Simulação por Computador , Tomografia Computadorizada de Feixe Cônico , Imageamento Tridimensional , Modelos Anatômicos , Obstrução Nasal/cirurgia , Impressão Tridimensional , Adulto , Feminino , Humanos , Hidrodinâmica , Masculino , Obstrução Nasal/diagnóstico por imagem , Obstrução Nasal/patologia , Obstrução Nasal/fisiopatologia , Reprodutibilidade dos Testes
9.
Plast Reconstr Surg ; 148(4): 592e-600e, 2021 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-34550944

RESUMO

BACKGROUND: Nasal obstruction is a common problem, with significant impact on quality of life. Accurate diagnosis may be challenging because of the complex and dynamic nature of the involved anatomy. Computational fluid dynamics modeling has the ability to identify specific anatomical defects, allowing for a targeted surgical approach. The goal of the current study is to better understand nasal obstruction as it pertains to disease-specific quality of life by way of a novel computational fluid dynamics model of nasal airflow. METHODS: Fifty-three patients with nasal obstruction underwent computational fluid dynamics modeling based on computed tomographic imaging. Nasal resistance was compared to demographic data and baseline subjective nasal patency based on Nasal Obstructive Symptom Evaluation scores. RESULTS: Mean Nasal Obstructive Symptom Evaluation score among all patients was 72.6. Nasal Obstructive Symptom Evaluation score demonstrated a significant association with nasal resistance in patients with static obstruction (p = 0.03). There was a positive correlation between Nasal Obstructive Symptom Evaluation score and nasal resistance in patients with static bilateral nasal obstruction (R2 = 0.32) and poor correlation in patients with dynamic bilateral obstruction caused by nasal valve collapse (R2 = 0.02). Patients with moderate and severe bilateral symptoms had significantly higher nasal resistance compared to those with unilateral symptoms (p = 0.048). CONCLUSIONS: Nasal obstruction is a multifactorial condition in most patients. This study shows correlation between simulated nasal resistance and Nasal Obstructive Symptom Evaluation score in a select group of patients. There is currently no standardized diagnostic algorithm or gold standard objective measure of nasal airflow; however, computational fluid dynamics may better inform treatment planning and surgical techniques on an individual basis. CLINICAL QUESTION/LEVEL OF EVIDENCE: Risk, V.


Assuntos
Hidrodinâmica , Modelos Biológicos , Obstrução Nasal/diagnóstico , Planejamento de Assistência ao Paciente , Adulto , Estudos de Coortes , Simulação por Computador , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Obstrução Nasal/complicações , Obstrução Nasal/fisiopatologia , Obstrução Nasal/cirurgia , Procedimentos Cirúrgicos Nasais , Nariz/diagnóstico por imagem , Nariz/fisiopatologia , Nariz/cirurgia , Medidas de Resultados Relatados pelo Paciente , Qualidade de Vida , Índice de Gravidade de Doença , Tomografia Computadorizada por Raios X
10.
Am J Otolaryngol ; 42(6): 103165, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34343735

RESUMO

In recent decades, semiconductor lasers have been successfully used in rhinology. However, their usage in the reduction of the nasal swell body (NSB) is barely studied. Our research aimed to conduct an experimental selection of the laser exposure mode in the NSB zone using a 970 nm diode laser for safe and effective NSB reduction. The thermometric parameters of a diode laser with a wavelength of 970 nm were evaluated in a continuous contact mode of exposure at the power from 2 W to 10 W with 2 W step. The laser was targeted at the liver of cattle, given its similar optical properties to the NSB region. After a series of experiments with every power rate and the analysis of temperature data, we estimated an optimal exposure mode at a power of 4 W. The collected thermometric data demonstrate the safety of this mode in a clinical setting for NSB reduction due to causing no thermal damage to the adjacent tissue. Based on the experiment, a technique for laser reduction of the NSB was developed to improve nasal breathing in patients with severe hypertrophy of this area. The proposed technique was applied to 39 patients with chronic vasomotor rhinitis and the NSB. All patients were divided into 2 groups. Group 1 consisted of 20 patients who underwent surface contact laser-turbinectomy and the NSB reduction using a 970 nm diode laser. Group 2 included 19 patients with the same pathology who underwent laser-turbinectomy, without reduction of the NSB. No statistically significant difference was observed during the dynamic observation with an objective assessment of nasal respiration according to active anterior rhinomanometry when comparing these subgroups with each other according to the t-criterion for independent samples (p > 0.05). As a result of comparing the data obtained on the NOSE scale using the Student's t-test, a statistically significant difference is observed (p < 0.001). Thus, patients who did not perform the reduction of the NSB subjectively noted the insufficiency of nasal breathing. This fact indicates that the NSB is involved in the regulation of airflow.


Assuntos
Terapia a Laser/métodos , Lasers Semicondutores/uso terapêutico , Obstrução Nasal/cirurgia , Procedimentos Cirúrgicos Otorrinolaringológicos/métodos , Animais , Bovinos , Feminino , Humanos , Hipertrofia , Lasers Semicondutores/efeitos adversos , Masculino , Obstrução Nasal/patologia , Obstrução Nasal/fisiopatologia , Septo Nasal/patologia , Nariz/fisiopatologia , Dosagem Radioterapêutica , Respiração , Rinite Vasomotora/patologia , Rinite Vasomotora/fisiopatologia , Rinite Vasomotora/cirurgia , Segurança , Temperatura , Resultado do Tratamento
11.
Auris Nasus Larynx ; 48(5): 914-921, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33685756

RESUMO

OBJECTIVE: Many authors have investigated the most appropriate surgical approach to the deviated septum in childhood, considering the obligate mouth-breathing habit a possible cause of malocclusion and disharmonious development of the facial skeleton in growing kids. Nevertheless, controversies still remain about the long-term functional/esthetic results of such procedures, mainly due to the duration of the follow-up and possible confounding factors. METHODS: 111 Caucasian children (age range: 6-13 years) were submitted to a personal "Quick" septoplasty surgical technique between 2005 and 2010. Preoperative otorhinolaryngological examination using flexible nasal endoscopy, anterior active rhinomanometry (AAR), Nasal Obstruction Septoplasty Effectiveness (NOSE) questionnaire, and dentofacial evaluation (including cephalometry) were performed. Postoperative AAR, NOSE questionnaire and cephalometric assessment were carried out in all patients at the age of 18 years. Informed consent was obtained from children's parents as appropriate. RESULTS: No surgical complication was recorded. Among our patients, a significant (p <0.001) improvement of nasal breathing resistances at AAR and NOSE questionnaire scores was found after surgery. A significant improvement in cephalometric/dental parameters (gonial angle values, anterior facial height, prevalence of class I occlusion, maxillary intermolar width, and cross-bite frequency) was noticed after the follow-up with respect to preoperative conditions. CONCLUSION: The "Quick" septoplasty technique described is a practical and conservative procedure with a low complication rate that offers long-term favourable results for the correction of nasal septum deviations in children. Nasal-breathing restoration may favor a physiological and harmonious development of craniofacial and dental structures in offspring.


Assuntos
Ossos Faciais/crescimento & desenvolvimento , Obstrução Nasal/cirurgia , Septo Nasal/cirurgia , Rinoplastia/métodos , Adolescente , Cefalometria , Criança , Feminino , Humanos , Masculino , Má Oclusão/epidemiologia , Respiração Bucal/fisiopatologia , Obstrução Nasal/fisiopatologia , Septo Nasal/anormalidades , Estudos Prospectivos , Mecânica Respiratória/fisiologia , Rinomanometria
12.
Clin Otolaryngol ; 46(4): 744-751, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33533570

RESUMO

BACKGROUND: Evidence has shown that the sensation of nasal breathing is related to variations in nasal mucosa temperature produced by airflow. An appropriate nasal airflow is necessary for changing mucosal temperature. Therefore, the correlation between objective measurements of nasal airflow and patient-reported evaluation of nasal breathing should be dependent on the level of nasal airflow. OBJECTIVES: To find if the correlation between patient-reported assessment of nasal breathing and objective measurement of nasal airflow is dependent on the severity of symptoms of nasal obstruction or on the level of nasal airflow. METHODS: The airway of 79 patients was evaluated using NOSE score and peak nasal inspiratory flow (PNIF). Three subgroups were created based on NOSE and three subgroups were created based on PNIF level to find if correlation was dependent on nasal symptoms or airflow. RESULTS: The mean value of PNIF for the 79 patients was 92.6 L/min (SD 28.1 L/min). The mean NOSE score was 48.4 (SD 24.4). The correlation between PNIF and NOSE was statistically significant (P = .03), but with a weak association between the two variables (r = -.248). Evaluation of correlation based on symptoms demonstrated a weak or very weak association in each subgroup (r = -.250, r = -.007, r = -.104). Evaluation of correlation based on nasal airflow demonstrated a very weak association for the subgroups with middle-level and high PNIF values (r = -.190, r = -.014), but a moderate association for the subgroup with low PNIF values (r = -.404). CONCLUSIONS: This study demonstrated a weak correlation between NOSE scores and PNIF values in patients non-selected according to symptoms of nasal obstruction or to airflow. It demonstrated that patients with symptoms of nasal obstruction have different levels of nasal airflow and that low nasal airflow prevents the sensation of good nasal breathing. Therefore, patients with symptoms of nasal obstruction may require improving nasal airflow to improve nasal breathing sensation.


Assuntos
Obstrução Nasal/fisiopatologia , Medidas de Resultados Relatados pelo Paciente , Adolescente , Adulto , Idoso , Resistência das Vias Respiratórias , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Mucosa Nasal/fisiopatologia , Testes de Função Respiratória , Estudos Retrospectivos , Rinoplastia , Índice de Gravidade de Doença
14.
Clin Otolaryngol ; 46(1): 4-8, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33064350

RESUMO

INTRODUCTION: This review discusses how nasal congestion may have benefits as a mechanism of defence against respiratory viruses. METHODS: A literature research was conducted on respiratory viruses and nasal congestion, following a recently published review on how temperature sensitivity is important for the success of common respiratory viruses. RESULTS: The literature reported that common respiratory viruses are temperature sensitive and replicate well at the cooler temperatures of the upper airways (32°C), but replication is restricted at body temperature (37°C). The amplitude of the phases of congestion and decongestion associated with the nasal cycle was increased on infection with respiratory viruses and this caused unilateral nasal congestion and obstruction. Nasal congestion and obstruction increase nasal mucosal temperature towards 37°C and therefore restricted the replication of respiratory viruses. CONCLUSION: Nasal congestion associated with the nasal cycle may act as a mechanism of respiratory defence against infection with respiratory viruses.


Assuntos
Imunidade nas Mucosas/fisiologia , Mucosa Nasal/fisiologia , Obstrução Nasal/fisiopatologia , Infecções Respiratórias/prevenção & controle , Viroses/prevenção & controle , Resistência das Vias Respiratórias/fisiologia , Temperatura Corporal , Humanos , Obstrução Nasal/etiologia , Infecções Respiratórias/complicações , Infecções Respiratórias/fisiopatologia , Viroses/complicações , Viroses/fisiopatologia
15.
Auris Nasus Larynx ; 47(4): 559-564, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32586739

RESUMO

OBJECTIVE: to detect, analyze and discuss the different ear nose throat (ENT) manifestations those were reported in COVID19 positive patients in the reviewed and published literatures. METHODS: We performed a search in the PubMed databases, Web of Science, LILACS, MEDLINE, SciELO, and Cochrane Library using the keywords; COVID-19, Novel coronavirus, corona, 2019-nCoV, SARS-CoV-2, ENT, ear, nose, throat, otorhinolaryngology, ORL, pharynx, ORL, smell, larynx, different ENT related symptoms. We reviewed published and peer reviewed studies that reported the ENT manifestations in COVID-19 laboratory-confirmed positive patients. RESULTS: within the included 1773 COVID-19 laboratory-confirmed positive patients, the most common ENT manifestations of COVID-19 were sore throat (11.3%) and headache (10.7%). While the other reported ENT manifestations were pharyngeal erythema (5.3%), nasal congestion (4.1%), runny nose or rhinorrhea (2.1%), upper respiratory tract infection (URTI) (1.9%), and tonsil enlargement (1.3%). CONCLUSION: ENT manifestations for COVID-19 are not common as fever and cough. But, a universal questionnaire using well-defined COVID-19 manifestations is needed to make the COVID-19 data precisely defined, complete and homogenous.


Assuntos
Infecções por Coronavirus/fisiopatologia , Transtornos do Olfato/fisiopatologia , Faringite/fisiopatologia , Pneumonia Viral/fisiopatologia , Tonsila Faríngea , Betacoronavirus , COVID-19 , Tosse/fisiopatologia , Diarreia/fisiopatologia , Dispneia/fisiopatologia , Eritema/fisiopatologia , Fadiga/fisiopatologia , Febre/fisiopatologia , Cefaleia/fisiopatologia , Humanos , Mialgia/fisiopatologia , Obstrução Nasal/fisiopatologia , Otorrinolaringopatias/fisiopatologia , Tonsila Palatina , Pandemias , Infecções Respiratórias/fisiopatologia , SARS-CoV-2
16.
Clin Otolaryngol ; 45(5): 718-724, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32365272

RESUMO

OBJECTIVES: The objective of this study was to investigate the relationship between side asymmetry in nasal resistance (NR) and severity of the nasal airway obstruction (NAO) in patients with different types of nasal septal deformity (NSD). DESIGN: Computational fluid dynamics (CFD) study. SETTING: The study was conducted in a tertiary medical centre. PARTICIPANTS: The study included 232 patients, who were referred to the CT examination of the paranasal sinuses. Exclusion criteria were sinonasal and respiratory diseases that may interfere with the nasal obstruction. The presence and the type of NSD were recorded according to the Mladina's classification. MAIN OUTCOME MEASURES: The presence and severity of NAO in each patient were assessed by NOSE questionnaire. Eight computational models of the nasal cavity were created from CT scans. Models represented seven Mladina's NSD types and a straight septum of a symptomless patient. CFD calculated airflow partitioning and NR for each nasal passage. Side differences in NR were calculated by the equation ∆NR = NRleft  - NRright . The relationship between NOSE scores, airflow partitioning and side differences in NR was explored using Spearman's correlation analysis. RESULTS: Mladina's types of NSD showed differences in airflow partitioning and the degree of side asymmetry in NR. A significant positive correlation was detected between side differences in NR and NOSE scores (R = .762, P = .028). A significant negative correlation was found between the per cent of unilateral airflow and NR (R = -.524, P = .037). CONCLUSIONS: Our results demonstrated that side asymmetry in NR could explain differences in NAO severity related to the NSD type.


Assuntos
Resistência das Vias Respiratórias/fisiologia , Simulação por Computador , Imageamento Tridimensional/métodos , Modelos Biológicos , Obstrução Nasal/diagnóstico , Septo Nasal/anormalidades , Tomografia Computadorizada por Raios X/métodos , Adulto , Seguimentos , Humanos , Obstrução Nasal/fisiopatologia , Septo Nasal/diagnóstico por imagem , Estudos Prospectivos , Índice de Gravidade de Doença
17.
Eur Radiol ; 30(8): 4466-4474, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32279114

RESUMO

OBJECTIVES: To investigate MRI features in discriminating chronic invasive fungal rhinosinusitis (CIFRS) from sinonasal squamous cell carcinomas (SNSCC). METHODS: MRI findings of 33 patients with CIFRS and 47 patients with SNSCC were retrospectively reviewed and compared. Multivariate logistic regression analysis was performed to identify significant imaging features in distinguishing between CIFRS and SNSCC. The ROC curves and the AUC were used to evaluate diagnostic performance. RESULTS: There were significant differences in cavernous sinus involvement (p < 0.001), sphenoid sinus involvement (p < 0.001), meningeal involvement (p = 0.024), T2 signal intensity (p = 0.006), and enhancement pattern (p < 0.001) between CIFRS and SNSCC. Multivariate logistic regression analysis identified cavernous sinus involvement (odds ratio [OR] = 0.06, 95% confidence interval [95% CI] = 0.02-0.20) and sphenoid sinus involvement (OR = 0.14, 95% CI = 0.05-0.45) as significant indicators for CIFRS and T2 isointensity to gray matter (OR = 4.44, 95% CI = 1.22-16.22) was a significant indicator for SNSCC. ROC curve analysis showed the AUC from a combination of three imaging features was 0.95 in differentiating CIFRS and SNSCC. CONCLUSIONS: MRI showed significant differences between CIFRS and SNSCC features. In immunocompromised patients, a sinonasal hypointense mass on T2WI with septal enhancement or loss of contrast enhancement, and involvement of cavernous sinus, sphenoid sinus, and meninges strongly suggest CIFRS. KEY POINTS: • Chronic invasive fungal rhinosinusitis (CIFRS) is often difficult to distinguish from sinonasal squamous cell carcinomas (SNSCC) in clinical practice. • Cavernous sinus and sphenoid sinus involvement appear to be significant indicators for CIFRS. T2 isointensity to gray matter appears to be a significant indicator for SNSCC. • Loss of contrast enhancement and septal enhancement can be used to distinguish CIFRS from SNSCC with a high degree of specificity.


Assuntos
Diagnóstico Diferencial , Infecções Fúngicas Invasivas/diagnóstico por imagem , Neoplasias dos Seios Paranasais/diagnóstico por imagem , Rinite/diagnóstico por imagem , Sinusite/diagnóstico por imagem , Carcinoma de Células Escamosas de Cabeça e Pescoço/diagnóstico por imagem , Adulto , Idoso , Aspergilose/diagnóstico por imagem , Aspergilose/imunologia , Aspergilose/fisiopatologia , Seio Cavernoso/diagnóstico por imagem , Doença Crônica , Epistaxe/fisiopatologia , Dor Facial/fisiopatologia , Feminino , Cefaleia/fisiopatologia , Humanos , Hospedeiro Imunocomprometido , Infecções Fúngicas Invasivas/imunologia , Infecções Fúngicas Invasivas/fisiopatologia , Modelos Logísticos , Imageamento por Ressonância Magnética , Masculino , Meninges/diagnóstico por imagem , Pessoa de Meia-Idade , Mucormicose/diagnóstico por imagem , Mucormicose/imunologia , Mucormicose/fisiopatologia , Análise Multivariada , Obstrução Nasal/fisiopatologia , Neoplasias Nasais/diagnóstico por imagem , Neoplasias Nasais/fisiopatologia , Neoplasias dos Seios Paranasais/fisiopatologia , Estudos Retrospectivos , Rinite/imunologia , Rinite/fisiopatologia , Rinorreia/fisiopatologia , Sinusite/imunologia , Sinusite/fisiopatologia , Seio Esfenoidal/diagnóstico por imagem , Carcinoma de Células Escamosas de Cabeça e Pescoço/fisiopatologia , Transtornos da Visão/fisiopatologia
18.
Auris Nasus Larynx ; 47(4): 593-601, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32085929

RESUMO

OBJECTIVE: Patients suffering from persistent inferior turbinates hypertrophy refractory to medical treatments require surgical intervention where the main aim is symptomatic relief without any complications. Extraturbinoplasty is one of the preferred procedures for turbinate reduction due to its efficacy in freeing up nasal space by removing the obstructing soft tissue and bone while preserving the turbinate mucosa. We sought to evaluate the effectiveness and safety of microdebrider assisted turbinoplasty (MAT) and coblation assisted turbinoplasty (CAT) performed as an extraturbinoplasty procedure. METHODS: A prospective randomized comparative trial was conducted among patients with bilateral nasal blockage secondary to inferior turbinates hypertrophy. Patients were randomly assigned to MAT or CAT. An extraturbinal medial flap turbinoplasty was performed for both techniques. Symptom assessment was based on the visual analogue score for nasal obstruction, sneezing, rhinorrhea, headache and hyposmia. Turbinate size, edema and secretions were assessed by nasoendoscopic examination. The assessments were done preoperatively, at 1st postoperative week, 2nd and 3rd postoperative months. Postoperative morbidity like pain, bleeding, crusting and synechiae were documented. The clinical outcomes of both techniques were analyzed using repeated measures ANOVA. RESULTS: A total of 33 participants were recruited, 17 patients randomized for MAT and 16 patients for CAT. Nasal obstruction, discharge, sneezing, headache and hyposmia significantly reduced from 1st week until 3 months for both procedures. Similar significant reductions were seen for turbinate size, edema and secretions. However, there was no significant difference in symptoms and turbinate size reduction were seen between both groups at the first postoperative week, 2nd and 3rd postoperative months. There was significant longer operating time for CAT when compared to MAT (p = 0.001). The postoperative complications of bleeding, crusting and synechiae did not occur in both groups. CONCLUSION: Both MAT and CAT were equally effective in improving nasal symptoms and achieving turbinate size reduction in patients with inferior turbinate hypertrophy. Both MAT and CAT offer maximal relieve in patients experiencing inferior turbinates hypertrophy by removing the hypertrophied soft tissue together with the turbinate bone without any complications.


Assuntos
Obstrução Nasal/cirurgia , Procedimentos Cirúrgicos Nasais/instrumentação , Conchas Nasais/cirurgia , Adulto , Anosmia/fisiopatologia , Endoscopia , Feminino , Cefaleia/fisiopatologia , Humanos , Hipertrofia , Masculino , Obstrução Nasal/fisiopatologia , Procedimentos Cirúrgicos Nasais/métodos , Duração da Cirurgia , Rinorreia/fisiopatologia , Espirro , Resultado do Tratamento , Adulto Jovem
19.
J Voice ; 34(4): 649.e15-649.e20, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-30738782

RESUMO

OBJECTIVE: To demonstrate the surgical efficacy of septoplasty using acoustic rhinometry (AR) and anterior rhinomanometry (ARM) and to evaluate the effect of septoplasty on voice performance through subjective voice analysis methods. MATERIALS AND METHODS: This prospective study enrolled a total of 62 patients who underwent septoplasty with the diagnosis of deviated nasal septum. Thirteen patients with no postoperative improvement versus preoperative period as shown by AR and/or ARM tests and three patients with postoperative complications and four patients who were lost to follow-up were excluded. As a result, a total of 42 patients were included in the study. Objective tests including AR, ARM, acoustic voice analysis and spectrographic analysis were performed before the surgery and at 1 month and 3 months after the surgery. Subjective measures included the Nasal Obstruction Symptom Evaluation questionnaire to evaluate surgical success and Voice Handicap Index-30 tool for assessment of voice performance postoperatively, both completed by all study patients. RESULTS: Among acoustic voice analysis parameters, F0, jitter, Harmonics-to-Noise Ratio values as well as formant frequency (F1-F2-F3-F4) values did not show significant differences postoperatively in comparison to the preoperative period (P > 0.05). Only the shimmer value was statistically significantly reduced at 1 month (P < 0.05) and 3 months postoperatively (P < 0.05) versus baseline. Statistically significant reductions in Voice Handicap Index-30 scores were observed at postoperative 1 month (P < 0.001) and 3 months (P < 0.001) compared to the preoperative period and between postoperative 1 month and 3 months (P < 0.05). CONCLUSION: In this study, first operative success of septoplasty was demonstrated through objective tests and then objective voice analyses were performed to better evaluate the overall effect of septoplasty on voice performance. Shimmer value was found to be improved in the early and late postoperative periods.


Assuntos
Obstrução Nasal/cirurgia , Septo Nasal/cirurgia , Rinomanometria , Rinometria Acústica , Rinoplastia , Qualidade da Voz , Acústica , Adulto , Avaliação da Deficiência , Feminino , Humanos , Masculino , Obstrução Nasal/diagnóstico , Obstrução Nasal/fisiopatologia , Septo Nasal/diagnóstico por imagem , Valor Preditivo dos Testes , Estudos Prospectivos , Recuperação de Função Fisiológica , Espectrografia do Som , Medida da Produção da Fala , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
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