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1.
Ann Oncol ; 35(8): 707-717, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38729567

RESUMO

BACKGROUND: SERENA-1 (NCT03616587) is a phase I, multi-part, open-label study of camizestrant in pre- and post-menopausal women with estrogen receptor-positive (ER+), human epidermal growth factor receptor 2-negative (HER2-) advanced breast cancer. Parts A and B aim to determine the safety and tolerability of camizestrant monotherapy and define doses for clinical evaluation. PATIENTS AND METHODS: Women aged ≥18 years with metastatic or recurrent ER+, HER2- breast cancer, refractory (or intolerant) to therapy, were assigned 25 mg up to 450 mg once daily (QD; escalation) or 75, 150, or 300 mg QD (expansion). Safety and tolerability, antitumor efficacy, pharmacokinetics, and impact on mutations in the estrogen receptor gene (ESR1m) circulating tumor (ct)DNA levels were assessed. RESULTS: By 9 March 2021, 108 patients received camizestrant monotherapy at 25-450 mg doses. Of these, 93 (86.1%) experienced treatment-related adverse events (TRAEs), 82.4% of which were grade 1 or 2. The most common TRAEs were visual effects (56%), (sinus) bradycardia (44%), fatigue (26%), and nausea (15%). There were no TRAEs grade 3 or higher, or treatment-related serious adverse events at doses ≤150 mg. Median tmax was achieved ∼2-4 h post-dose at all doses investigated, with an estimated half-life of 20-23 h. Efficacy was observed at all doses investigated, including in patients with prior cyclin-dependent kinase 4/6 inhibitor (CDK4/6i) and/or fulvestrant treatment, with and without baseline ESR1 mutations, and with visceral disease, including liver metastases. CONCLUSIONS: Camizestrant is a next-generation oral selective ER antagonist and degrader (SERD) and pure ER antagonist with a tolerable safety profile. The pharmacokinetics profile supports once-daily dosing, with evidence of pharmacodynamic and clinical efficacy in heavily pre-treated patients, regardless of ESR1m. This study established 75-, 150-, and 300-mg QD doses for phase II testing (SERENA-2, NCT04214288 and SERENA-3, NCT04588298).


Assuntos
Neoplasias da Mama , Receptor ErbB-2 , Humanos , Feminino , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/patologia , Neoplasias da Mama/genética , Pessoa de Meia-Idade , Receptor ErbB-2/genética , Receptor ErbB-2/antagonistas & inibidores , Receptor ErbB-2/metabolismo , Idoso , Adulto , Receptores de Estrogênio/metabolismo , Administração Oral , Receptor alfa de Estrogênio/genética , Idoso de 80 Anos ou mais , Dose Máxima Tolerável , Relação Dose-Resposta a Droga , Azetidinas , Isoquinolinas
2.
Rhinology ; 2023 Dec 13.
Artigo em Inglês | MEDLINE | ID: mdl-38088419

RESUMO

BACKGROUND: Previous results on the nasal cycle refer to measurements over up to 24h. The long-term rhinoflowmetry (LRFM) allows continuous observations over a longer period. The aim of the study was to observe the nasal cycle for the first time over 48h under everyday conditions. METHODOLOGY: The LRFM was continuously applied to 30 rhinologically healthy subjects (20 female, 10 male) over 48h. The different types of nasal cycle were classified as follows: "classic", "in concert", "one-sided", "no-cycle" and "mixed". The focus of this study was on the results over the entire 48 hours. The comparison of the two consecutive days was also made. RESULTS: A nasal cycle could be detected in 100% of the subjects over 48h. With 97%, the mixed type most commonly occurred as a combination of classical and in concert components. In all subjects, classical cycle components could be detected at least once. The no-cycle type was not observed. In the awake state, the mixed type dominated (80%), as a combination of classical and in concert parts. In the sleep state, the classical type was the most common type (97%). The average phase duration was 206 ± 83 minutes. CONCLUSIONS: In the very first continuous 48-hour study on the nasal cycle, 100% of the subjects presented a nasal cycle. The LRFM method is the only one that offers the possibility to perform continuous measurements over a longer period during daily routine. The results of previous single-stage examination methods should thus be questioned.

3.
Eur Arch Otorhinolaryngol ; 279(1): 205-211, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33813628

RESUMO

PURPOSE: Septal deviation and nose deformities are widely prevalent. As a consequence, patients may complain about difficulties in nasal breathing leading to a perception of diminished disease-specific quality of life. In a prospective randomized trial, we aimed to analyse the outcome of septoplasty (SPL) and septorhinoplasty (SRP) on patient satisfaction. METHODS: Patients with functional indication for SPL (n = 19) or SRP (n = 54) were included and randomized for additional turbinoplasty. Preoperative clinical symptoms were collected with SNOT-20 GAV (Sinu-nasal outcome test-20-German adapted version) and NOSE© (nasal obstruction symptom evaluation) questionnaires. The final evaluation of treatment success was performed 9 months after surgery with SNOT-20 GAV, NOSE© and a self-established feedback questionnaire. Nasal breathing and obstruction were objectively measured with rhinomanometry and acoustic rhinometry [minimum cross-sectional area 2 (MCA2)]. RESULTS: Minimum cross-sectional area 2 was statistically improved compared to the pre-treatment value in SPL (p = 0.0004) and SRP (p = 0.0001). Regarding MCA2 values of matched patient groups, similar findings were detected (SPL: p = 0.0013, SRP: p < 0.0001). Sinu-nasal outcome test-20 GAV and NOSE© scores were significantly reduced after both surgical procedures (NOSE©: SPL: p < 0.0001, SRP: p < 0.0001; SNOT-20 GAV: SPL: p = 0.0068, SRP: p < 0.0001). Evaluation of patient satisfaction in a self-established feedback questionnaire revealed a motivation of 81% of patients to redo the surgery (SPL 13/16, SRP 34/42) and a notably general satisfaction of 86% for SPL and 80% for SRP. CONCLUSION: Rhinosurgery leads to quantitative better nasal breathing and increased disease-specific satisfaction. However, this study implies the importance of the right selection of patients and the correct indication of the surgical technique.


Assuntos
Obstrução Nasal , Rinoplastia , Humanos , Obstrução Nasal/etiologia , Obstrução Nasal/cirurgia , Septo Nasal/cirurgia , Estudos Prospectivos , Qualidade de Vida , Resultado do Tratamento
4.
HNO ; 70(3): 239-248, 2022 Mar.
Artigo em Alemão | MEDLINE | ID: mdl-35075518

RESUMO

Between 1958 and 1961 approximately 10,000 children with severe deformities of extremities were born, whose mothers had taken the sedative thalidomide. Since then, drugs in pregnancy are applied with legitimate caution by the pharmaceutical industry, physicians and patients, although often accompanied by irrational panic. The pharmaceutical industry takes a legally safe position noting "contraindication" or at least "strict indication" in the consumer information. This transfers responsibility to the prescribing doctor. Even without drug therapy, the spontaneous malformation rate is approx. 3 to 4%. Concerning expectant mothers, a therapeutic nihilism may lead to a dramatic deterioration of the maternal disease, thereby causing high risks in fetal development. The aim of the present work is to present a structured "Guideline for Practice" of medication that can be used during pregnancy for treating medical conditions of the ear, nose and throat.


Assuntos
Otorrinolaringopatias , Preparações Farmacêuticas , Criança , Feminino , Humanos , Otorrinolaringopatias/tratamento farmacológico , Gravidez , Talidomida
5.
HNO ; 70(10): 751-755, 2022 Oct.
Artigo em Alemão | MEDLINE | ID: mdl-36129487

RESUMO

Isolated nasal bone fractures are the most common injuries of the central midface. They can be divided into different fracture types, depending on the exposure and orientation of violence. It is essential to ensure that there is no septal hematoma or abscess, which would require an emergency surgical intervention. A closed reposition can be offered if misalignment of the nose can still be observed after the edema swelling has gone down. In case of insufficient aesthetic and functional results, rhinoplasty/septal reconstruction can be performed 6 to 12 months after the trauma at the earliest. In children the, the decision for repositioning should be taken carefully in order to protect the nasal growing zone.


Assuntos
Doenças Nasais , Rinoplastia , Traumatologia , Abscesso/cirurgia , Criança , Humanos , Osso Nasal/cirurgia , Septo Nasal/cirurgia , Nariz/cirurgia , Rinoplastia/métodos
6.
HNO ; 70(2): 94-101, 2022 Feb.
Artigo em Alemão | MEDLINE | ID: mdl-34170336

RESUMO

BACKGROUND: A reciprocal swelling of the nasal mucosa is often referred to as the classical nasal cycle; however, reports in the literature suggest a more complex picture. Most of the research on the nasal cycle is based on individual measurements. The long-term rhinometry (LRM) now makes it possible to continuously examine the cyclic swelling of the nasal mucosa over 24 h. The aim of this study was therefore to evaluate the nasal cycle with LRM over 24 h. MATERIAL AND METHODS: An LRM was performed in 55 rhinologically healthy subjects over 24 h using the portable measuring system Rhino-Move© (Happersberger Otopront; Hohenstein, Germany). RESULTS: In addition to the expected strictly reciprocal swelling of the nasal mucosa in the sense of the classical nasal cycle, the following cycle types were detected: in-concert type with simultaneous rise and drop of the air flow on both sides of the nose, the one-sided type with significant congestion and decongestion of the mucous membrane only on one side and no detectable changes on the other side of the nose and the non-cycle type without any change in airflow on both sides. Most subjects showed a complex picture with multiple cycle types within the 24 h measurement (mixed nasal cycle). The types often differed during the day and night. CONCLUSION: This study confirms the assumption that the nasal cycle measured over 24 h is much more complex than often described in the literature. Most subjects showed several of the 5 cycle types described here. The LRM has proven to be an easy to- use and reliable measurement method. The relationship between cycle type and physical activity as well as other factors remains to be investigated.


Assuntos
Mucosa Nasal , Alemanha , Humanos
7.
Rhinology ; 59(6): 538-544, 2021 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-34432862

RESUMO

BACKGROUND: The nasal cycle seems to be more complex than a strictly alternating swelling of the nasal mucosa. Long-term rhinoflowmetry (LRFM) allows continuous investigation of changes in nasal airflow over 24 hours (24h). We evaluated the various types of nasal cycle with LRFM over 24 hours and investigated the influence of age and gender. METHODS: LRFM was continuously performed over 24h in 55 rhinologically healthy subjects (36 female, 19 male). The LRFM flow curves were examined for phases of the 'classical' 'in-concert' 'one-side' and'no-cycle' cycle types. Subjects were divided into 4 age subgroups (19-29; 30-49; 50-69; >70 years). Correlations of age and gender with the individual cycle forms were analyzed. RESULTS: 85.5% of the subjects presented a 'mixed' nasal cycle within 24h. 'classical' nasal cycle was seen most often (92.7% vs. 'in-concert' 56.4% vs. 'one-sided' 18.2% vs. 'no-cycle' 5.5%). Older age groups significantly more often presented the 'no-cycle' type. A tendency was seen towards a mixed nasal cycle with increasing age. The mixed nasal cycle was significantly more often seen in the female subjects. CONCLUSIONS: LRFM is an easy-to-use measurement tool. The 'mixed' nasal cycle predominates. However, all 4 different cycle types can be detected, alternating over 24h in each subject. Moreover, the cycle type varies with age.


Assuntos
Mucosa Nasal , Idoso , Feminino , Humanos , Masculino
8.
HNO ; 69(12): 1019-1032, 2021 Dec.
Artigo em Alemão | MEDLINE | ID: mdl-34762159

RESUMO

With increasing age, structures of the internal and external nose change. Many elderly patients complain about rhinitis with nasal obstruction, endonasal crusting, epistaxis, intermittent rhinorrhea, and olfactory disorders. These symptoms are mainly caused by atrophy of the mucosa and the olfactory epithelium, but may also be an expression of drug side effects. Additionally, there are changes in the shape of the nose (continuous growth, altered elasticity of supporting structures) and in the dermis, which may develop tumors due to its sun-exposed position. These multiple internal and external changes of the nose can be summarized by the collective term "aging nose," whose treatment options are complex. These range from conservative (nasal care, medication changes, hemostatic measures) to surgical lines of therapy (septorhinoplasty, tumor excision, vascular ligation) and will require further scientific study in the future.


Assuntos
Obstrução Nasal , Transtornos do Olfato , Rinite , Rinoplastia , Idoso , Humanos , Obstrução Nasal/cirurgia , Nariz/cirurgia
9.
HNO ; 68(3): 215-226, 2020 Mar.
Artigo em Alemão | MEDLINE | ID: mdl-32095844

RESUMO

Adenoidectomy, paracentesis, and tonsillar interventions are the most common operations in childhood. Hypertrophy of the lymphatic tissue of Waldeyer's ring can lead to individually distinct, acute, and chronic symptoms as well as anatomical and functional changes. When presented with affected children in otolaryngologic practice, the combination of parental interview, questionnaire-based screening for obstructive sleep apnea syndrome, and physical examination including ear microscopy, inspection of the oropharynx and, if necessary, the nasopharynx, has proven its worth. Audiometric diagnosis for detection of tympanic effusion should be mandatory. The treatment of choice is adenoidectomy, if necessary plus tonsillotomy and paracentesis with a tympanic tube insert. However, the indication remains controversial, as the effectiveness of the interventions seems to depend on the preoperative severity of symptoms. With a correct indication, effective symptom reduction, improvement in quality of life, and high parent satisfaction can be expected.


Assuntos
Adenoidectomia , Tonsila Faríngea , Tonsilectomia , Tonsila Faríngea/patologia , Tonsila Faríngea/cirurgia , Criança , Humanos , Hiperplasia/diagnóstico , Tonsila Palatina/patologia , Qualidade de Vida
10.
HNO ; 68(8): 573-580, 2020 Aug.
Artigo em Alemão | MEDLINE | ID: mdl-32405682

RESUMO

Until the 1990s, radical sinus surgery was considered a standard procedure for maxillary sinus diseases, but it is no longer favored due to the high morbidity. Today, functional endoscopic sinus surgery (FESS) is considered the gold standard in sinus surgery. Modifications of surgical approaches also allow access to regions of the maxillary sinus that were previously difficult to reach. Depending on anatomy and pathology, different methods for widening the maxillary ostium can be selected. In type I sinusotomy, the natural ostium is widened dorsally by a maximum of 1 cm. Sinusotomy type II involves widening the natural ostium up to a maximum diameter of 2 cm. In sinusotomy type III, the natural ostium is widened dorsally to the posterior wall of the maxillary sinus and caudally to the base of the inferior turbinate. Beside the prelacrimal approach, more invasive approaches are the medial maxillectomy, in which the dorsal part of the inferior turbinate and the adjacent medial wall of the maxillary sinus is resected, as well as its modifications "mega antrostomy" and "extended maxillary antrostomy." Correct selection of the size of the maxillary sinus window is prerequisite for successful treatment and long-term postoperative success. Isolated purulent maxillary sinusitis can usually be treated by a type I sinusotomy. Sinusotomy type II addresses nasal polyps with involvement of the mucosa of the ostium, recurrent stenosis after previous surgery, chronic maxillary sinusitis due to cystic fibrosis, and purulent maxillary sinusitis with involvement of other adjacent sinuses. Sinusotomy type III is required for choanal polyps with attachment to the floor of the maxillary sinus, for extensive polyposis and fungal sinusitis, and for inverted papilloma. Particularly for (recurrent) disease and extensive interventions in the maxillary sinus, medial maxillectomy or a modification thereof may be required.


Assuntos
Seio Maxilar , Sinusite Maxilar , Pólipos Nasais , Doenças dos Seios Paranasais , Sinusite , Endoscopia , Humanos , Seio Maxilar/cirurgia , Sinusite Maxilar/cirurgia , Pólipos Nasais/cirurgia , Doenças dos Seios Paranasais/cirurgia , Sinusite/cirurgia
11.
HNO ; 68(8): 566-572, 2020 Aug.
Artigo em Alemão | MEDLINE | ID: mdl-32405680

RESUMO

BACKGROUND: The question of the "true" function of the maxillary sinus and the paranasal sinuses (PS) has been a controversial issue in the literature for decades, leading to many discussions and speculations. OBJECTIVE: This review briefly summarizes various theories on the possible physiology and functions of the maxillary sinus/PS that have been discussed over the centuries. MATERIALS AND METHODS: A literature search was conducted in PubMed using a combination of the search terms "physiology," "function," "maxillary sinus," and "paranasal sinuses." RESULTS: Current and scientifically evidenced theories are described. "Sinusology" is the science of the PS. The maxillary sinuses might simply serve to improve the respiratory function of the nose. A flow of inspiratory air does not occur. The maxillary sinuses are decisively involved in the production of nitrogen monoxide (NO) and thus in supporting the immune defense of the nasal cavity. The mucosa of the maxillary sinus continuously synthesizes NO and serves as a reservoir of NO. Other important functions are protection of the orbit and the brain in case of skull fractures, as well as weight reduction of the skull. CONCLUSION: The various theories about the function of the PS still raise many questions and their true function is yet not fully understood. Possible functions of the maxillary sinuses are local immune defense through the production of NO. The PS serve as a crumple zone for vital cerebral structures in the context of craniocerebral traumas.


Assuntos
Seio Maxilar , Seios Paranasais , Fraturas Cranianas , Humanos , Seio Maxilar/anatomia & histologia , Seio Maxilar/fisiologia , Cavidade Nasal
12.
Ann Oncol ; 30(5): 774-780, 2019 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-30860570

RESUMO

BACKGROUND: BEECH investigated the efficacy of capivasertib (AZD5363), an oral inhibitor of AKT isoforms 1-3, in combination with the first-line weekly paclitaxel for advanced or metastatic estrogen receptor-positive (ER+)/human epidermal growth factor receptor 2-negative (HER2-) breast cancer, and in a phosphoinositide 3-kinase, catalytic, alpha polypeptide mutation sub-population (PIK3CA+). PATIENTS AND METHODS: BEECH consisted of an open-label, phase Ib safety run-in (part A) in 38 patients with advanced breast cancer, and a randomised, placebo-controlled, double-blind, phase II expansion (part B) in 110 women with ER+/HER2- metastatic breast cancer. In part A, patients received paclitaxel 90 mg/m2 (days 1, 8 and 15 of a 28-day cycle) with capivasertib taken twice daily (b.i.d.) at two intermittent ascending dosing schedules. In part B, patients were randomly assigned, stratified by PIK3CA mutation status, to receive paclitaxel with either capivasertib or placebo. The primary end point for part A was safety to recommend a dose and schedule for part B; primary end points for part B were progression-free survival (PFS) in the overall and PIK3CA+ sub-population. RESULTS: Capivasertib was well tolerated, with a 400 mg b.i.d. 4 days on/3 days off treatment schedule selected in part A. In part B, median PFS in the overall population was 10.9 months with capivasertib versus 8.4 months with placebo [hazard ratio (HR) 0.80; P = 0.308]. In the PIK3CA+ sub-population, median PFS was 10.9 months with capivasertib versus 10.8 months with placebo (HR 1.11; P = 0.760). Based on the Common Terminology Criteria for Adverse Event v4.0, the most common grade ≥3 adverse events in the capivasertib group were diarrhoea, hyperglycaemia, neutropoenia and maculopapular rash. Dose intensity of paclitaxel was similar in both groups. CONCLUSIONS: Capivasertib had no apparent impact on the tolerability and dose intensity of paclitaxel. Adding capivasertib to weekly paclitaxel did not prolong PFS in the overall population or PIK3CA+ sub-population of ER+/HER2- advanced/metastatic breast cancer patients.ClinicalTrials.gov: NCT01625286.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/genética , Classe I de Fosfatidilinositol 3-Quinases/genética , Proteínas Proto-Oncogênicas c-akt/antagonistas & inibidores , Receptores de Estrogênio/metabolismo , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Biomarcadores Tumorais/genética , Neoplasias da Mama/metabolismo , Neoplasias da Mama/patologia , Classe I de Fosfatidilinositol 3-Quinases/metabolismo , Método Duplo-Cego , Feminino , Humanos , Mutação , Metástase Neoplásica , Recidiva Local de Neoplasia/tratamento farmacológico , Recidiva Local de Neoplasia/genética , Recidiva Local de Neoplasia/metabolismo , Recidiva Local de Neoplasia/patologia , Paclitaxel/administração & dosagem , Paclitaxel/efeitos adversos , Pirimidinas/administração & dosagem , Pirimidinas/efeitos adversos , Pirróis/administração & dosagem , Pirróis/efeitos adversos , Taxa de Sobrevida
13.
Rhinology ; 57(5): 352-357, 2019 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-31162492

RESUMO

BACKGROUND: Turbinoplasty is a common procedure in patients with nasal obstruction and hypertrophy of the nasal turbinates. A general recommendation regarding the necessity of turbinoplasty in functional rhinosurgery is still missing. For the first time, the value of turbinoplasty in septo- and septorhinoplasty regarding patient satisfaction as well as objective data in rhinomanometry and acoustic rhinometry was analyzed in a prospective randomized controlled trial. METHODOLOGY: 73 patients with nasal obstruction due to septal deviation and / or a deviated nose were included in the study. After randomization, anterior turbinoplasty was or was not performed during septo- or septorhinoplasty. Pre- and postoperative rhinomanometry and acoustic rhinometry were accomplished. NOSE© and SNOT 20 questionnaires were completed by the patients before and 9 months after surgery. Additionally, the patients were asked about their subjective satisfaction. RESULTS: 81% of the patients were subjectively satisfied with the postoperative improvement of nasal breathing. There was a significant improvement in the values of NOSE© and SNOT 20 questionnaires with no relevant difference between the two study groups. Acoustic rhinometry and rhinomanometry showed values in MCA1 and 2, Vol 1 and Vol 2 as well as higher nasal flows with no statistically significant difference between the two study groups. CONCLUSIONS: Patient satisfaction after functional septo- and septorhinoplasty is high and does not seem to be affected by turbinate surgery. There was no statistically significant difference in the postoperative results regarding objective rhinological measurements with or without turbinoplasty. As extensive resections of the turbinates can have a negative impact on nasal physiology, the indication for turbinoplasty must be considered carefully.


Assuntos
Obstrução Nasal , Rinoplastia , Conchas Nasais , Humanos , Obstrução Nasal/cirurgia , Septo Nasal/cirurgia , Estudos Prospectivos , Rinoplastia/métodos , Resultado do Tratamento , Conchas Nasais/cirurgia
14.
HNO ; 67(5): 379-384, 2019 May.
Artigo em Alemão | MEDLINE | ID: mdl-30783730

RESUMO

BACKGROUND: There is no established method to objectively measure the moisture status of nasal mucosa. In a pilot study it was shown that a nasal Schirmer test is a possible method. The aim of the current study was to check whether the nasal Schirmer test is suitable to define moisture status in cases with an expected pathological secretion. MATERIALS AND METHODS: Initially, 154 subjects participated, of whom n = 112 were included (healthy n = 65, deviated septum n = 47, ♂ 60, ♀ 52, median age 33 years). After evaluation of various test strips, the most suitable one was placed on both sides of the mucosa of the anterior septum. Secretion running distance (SRD) was measured in mm after 10 min. In addition, rhinomanometry (AAR) and acoustic rhinometry (AR) were performed. Healthy volunteers and subjects with septum deviation were compared, and subjects were also compared in terms of smoking behavior and age (<60 and ≥60 years). RESULTS: The total median SRD was 12 mm. SRDs between 9 and 14 mm were considered physiological. In non-smokers, SRD was significantly higher in all groups compared to smokers (p > 0.05). Nasal side, age, and deviated septum had no significant influence on SRD (p < 0.05). There were no correlations between SRD and AAR or AR. CONCLUSION: Our results confirm that a statement about moisture of the nasal mucosa is possible based on a nasal Schirmer test. Standard values of SRD are relevantly influenced by the respective test strip. Smoking is associated with a drier mucosa. Further investigations on the nasal Schirmer test in patients with expected atrophy of the nose, e. g., Sjogren's or empty nose syndrome, should be performed.


Assuntos
Mucosa Nasal , Obstrução Nasal , Nariz/fisiologia , Otolaringologia/métodos , Adulto , Feminino , Humanos , Masculino , Mucosa Nasal/metabolismo , Septo Nasal , Projetos Piloto , Rinomanometria , Rinometria Acústica
15.
HNO ; 67(5): 373-378, 2019 May.
Artigo em Alemão | MEDLINE | ID: mdl-30767056

RESUMO

OBJECTIVE: Partial resection of the caudal part of the inferior turbinate including the head is still performed in rhinosurgery ("stripe conchotomy"). However, extensive resections of the turbinate affect nasal airflow and intranasal conditioning. The aim of this study was to determine the effect of partial resection of the inferior turbinate including its head on intranasal air flow as well as warming and humidification of the inspired air by means of computational fluid dynamics. MATERIALS AND METHODS: A bilateral, realistic nasal model was created based on the CT scan of a patient. A unilateral partial resection of the lower turbinate on the right side had been performed externally. A numerical simulation was performed to analyze intranasal air flow patterns, temperature, and humidity distribution of the inspired air. RESULTS: Due to the partial resection of the lower turbinate on the right side, the flow pattern was significantly altered compared to the opposite side. Resection leads to a centered and higher velocity in the inferior nasal meatus as well as to reduced heating and humidification of the inhaled air compared to the untouched left nasal cavity. CONCLUSION: Partial resection of the caudal part of the inferior turbinate may lead to disturbed intranasal conditioning of inspired air if performed too radically. Therefore, if possible, this procedure should be avoided and a more gentle mucosal procedure chosen.


Assuntos
Procedimentos Cirúrgicos Nasais , Conchas Nasais , Humanos , Umidade , Cavidade Nasal , Temperatura , Conchas Nasais/cirurgia
16.
HNO ; 66(4): 280-289, 2018 Apr.
Artigo em Alemão | MEDLINE | ID: mdl-29222682

RESUMO

The human nose takes primary responsibility for preconditioning inhaled air. Numerous pathologies can affect the physiology of the nose. The beginnings of flow analyzes were carried out with three-dimensional casting models and differently colored liquids. Temperature and humidity could not be taken into account. Today, much more complex analyzes are possible using computational fluid dynamics (CFD), which are based on three-dimensional models generated from computed tomography (CT) or magnetic resonance imaging (MRI) datasets. Here, flow velocities, temperature, humidity, and pressure differences can be simulated and displayed in high-resolution videos as a function of multiple boundary conditions. The analysis of pathological changes or surgical interventions is thereby possible.


Assuntos
Hidrodinâmica , Nariz , Simulação por Computador , Humanos , Imageamento Tridimensional , Imageamento por Ressonância Magnética , Modelos Anatômicos , Nariz/diagnóstico por imagem , Nariz/fisiologia , Tomografia Computadorizada por Raios X
17.
Laryngorhinootologie ; 97(7): 457-464, 2018 Jul.
Artigo em Alemão | MEDLINE | ID: mdl-29986366

RESUMO

Pregnancy rhinitis (PR), a common condition in pregnant women, is defined as long-lasting nasal congestion due to mucosal swelling and increased secretion without any signs of infection, allergy or tumor, starting at any time during pregnancy and disappearing within 2 weeks of delivery. Smoking and a sensitization to house dust mites are known risk factors. While a definitive pathophysiological concept for PR does not exist, hormonal influences are discussed. We present a stepwise therapeutic strategy for PR and an overview to the latest literature.


Assuntos
Complicações na Gravidez , Rinite , Feminino , Humanos , Gravidez
18.
Rhinology ; 55(2): 120-125, 2017 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-28029166

RESUMO

INTRODUCTION: Nasal geometries and temperature of the nasal mucosa are the primary factors affecting nasal air conditioning. Data on intranasal air conditioning after provoking the trigeminal nerve with a cold stimulus simulating the effects of an arctic condition is still missing. The objective was to investigate the influence of skin cooling face masks on nasal air conditioning, mucosal temperature and nasal geometry. METHODS: Standardized in vivo measurements of intranasal air temperature, humidity and mucosal temperature were performed in 55 healthy subjects at defined detection sites before and after wearing a cooling face mask. Measurements of skin temperature, rhinomanometry and acoustic rhinometry were accomplished. RESULTS: After wearing the face mask the facial skin temperature was significantly reduced. Intranasal air temperature did not change. Absolute humidity and mucosal temperature increased significantly. The acoustic rhinometric results showed a significant increase of the volumes and the cross-sectional areas. There was no change in nasal airflow. CONCLUSIONS: Nasal mucosal temperature, humidity of inhaled air, and volume of the anterior nose increased after application of a cold face mask. The response is mediated by the trigeminal nerve. Increased mucosal temperatures as well as changes in nasal geometries seem to guarantee sufficient steady intranasal nasal air conditioning.


Assuntos
Resistência das Vias Respiratórias/fisiologia , Temperatura Corporal/fisiologia , Máscaras , Cavidade Nasal/fisiologia , Mucosa Nasal/fisiologia , Adulto , Idoso , Temperatura Baixa , Voluntários Saudáveis , Humanos , Umidade , Pessoa de Meia-Idade , Rinomanometria , Rinometria Acústica
19.
HNO ; 65(5): 443-456, 2017 May.
Artigo em Alemão | MEDLINE | ID: mdl-28401248

RESUMO

The nose forms the first 8 cm of the upper respiratory tract and is responsible for cleansing, humidification, and temperature control of the supplied air. This is also referred to as conditioning. The nasal valve region, formed by the head of the lower nasal concha, portions of the cartilaginous septum, and the upper lateral cartilage, is responsible for diffusing and accelerating the respiratory airflow. Prerequisite are regular mucociliary clearance and sufficient air passage. Hypertrophy of the lower nasal turbinate is one of the most common causes of symptomatic nasal congestion. In unclear cases, rhinometric procedures are available. In addition to conservative therapy of allergic or vasomotor rhinitis by specific immunotherapy or topical corticoids, numerous interventional procedures are available to reduce conchal tissue. All modern methods have a high degree of protection of the respiratory mucosa in common.


Assuntos
Obstrução Nasal/diagnóstico , Obstrução Nasal/cirurgia , Procedimentos Cirúrgicos Nasais/métodos , Medicina Baseada em Evidências , Humanos , Resultado do Tratamento , Conchas Nasais/cirurgia
20.
HNO ; 65(11): 916-922, 2017 Nov.
Artigo em Alemão | MEDLINE | ID: mdl-28699038

RESUMO

BACKGROUND: Septal surgery (SP) is one of the most frequently performed operations in Germany and thus represents a high cost burden for the health system. However, sufficient data on postoperative patient satisfaction and objective indication criteria for surgery are still lacking. OBJECTIVE: This study aimed to determine postoperative patient satisfaction and possible factors influencing the subjective success of SP, in order to optimize preoperative indication establishment. MATERIALS AND METHODS: A total of 600 questionnaires were sent by mail, resulting in inclusion of 238 patients (60 female, 178 male) who had received SP. The questionnaires were retrospectively evaluated using validated questionnaires (NOSE-D, SNOT-20-GAV) as well as a self-designed questionnaire regarding patients' subjective satisfaction after SP. Clinical data were collected from the electronic patient record. RESULTS: Follow-up was between 2 and 11 years. The main symptom for SP was difficult nasal breathing in 89% (212 of 238) of patients. In total, 68% (161) were satisfied with the outcome of surgery and 73% (172) of the patients would opt for SP again. The scores of the visual analog scales for nasal breathing, smell, nasal secretion, physical performance, use of nose drops, and headache were statistically significantly improved postoperatively. Additionally, the analysis of Nose-D and SNOT-20-GAV questionnaires presented a significant improvement in scores. Surprisingly, patients with a prolonged duration of septal splints were more satisfied. Previous nasal surgery had no significant influence. CONCLUSION: SP leads to a high degree of patient satisfaction, if the indication for surgery is correct. The main complaint of patients should be "difficult" nasal breathing. SP leads to a significant improvement in preoperative symptoms.


Assuntos
Obstrução Nasal , Satisfação do Paciente , Rinoplastia , Feminino , Alemanha , Humanos , Masculino , Obstrução Nasal/cirurgia , Septo Nasal , Estudos Retrospectivos , Inquéritos e Questionários , Resultado do Tratamento
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