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1.
目的 探究鼻内镜术后联合置管冲洗治疗真菌性上颌窦炎安全性和临床效果。方法 选择2013年3月~2017年3月我院用鼻内镜术后行鼻腔冲洗的真菌性上颌窦炎患者840例,随机分为实验组440例和对照组400例。实验组术后配合常规治疗的同时给予生理盐水500 ml置管冲洗术腔,1次/d,持续14 d;对照组则在术后配合常规治疗的同时给予生理盐水500 ml常规冲洗术腔,1次/d,持续14 d。比较两组患者鼻内镜术后1月、2月、3月及6月鼻腔恢复情况。结果 实验组术后第1、2、3及6月痊愈率与对照组比较,差异有统计学意义(P<0.05),第6月实验组痊愈率为45.45%,显著高于对照组的27.50%,差异有统计意义(P<0.05)。结论 真菌性上颌窦炎患者在鼻内镜手术术后,采用常规综合治疗配合置管冲洗术腔,能够很好地把术腔分泌物及痂皮冲出,减轻鼻腔、鼻窦的炎性反应,缩短鼻窦上皮化的时间,恢复保护和防御功能。  相似文献   

2.
《Acta biomaterialia》2014,10(6):2792-2803
Bioactive glass (BG) has been widely used in bone regeneration; however, reports on the biological effects of BG on dental pulp cells are rare. This study aims to investigate the effects of nanoscale BG (n-BG) on odontogenic differentiation and dentin formation of dental pulp cells and to compare these effects with those of microscale BG (m-BG). Human dental pulp cells (hDPCs) from third molars were cultured directly with m-BG and n-BG in vitro. The cell proliferation increased at 0.1 mg ml−1 BG, which also had a chemotactic effect on hDPCs. The mineralization capacity and expression of odontogenic-related proteins and genes (dentin sialophosphoprotein, dentin matrix protein 1 and collagen type I) of hDPCs were significantly up-regulated under BG induction, and were particularly higher in the n-BG group than in the control group. m-BG and n-BG combined with pulp tissues were transplanted into the dorsum of immunodeficient mice to observe their biological effects on dental pulp cells in vivo. A continuous layer of dentin-like tissue with uniform thickness, a well-organized dentinal tubule structure and polarizing odontoblast-like cells aligned along it was generated upon the n-BG layer, whereas some irregular sporadic osteodentin-like mineralized tissues were observed in the control group. This study reveals that BG, especially n-BG, induces the odontogenic differentiation and dentin formation of dental pulp cells and may serve as a potential material for pulp repair and dentin regeneration.  相似文献   

3.
兔急性上颌窦炎早期一氧化氮合酶的表达及意义   总被引:1,自引:0,他引:1  
郑鸣  任传路  黄登清 《解剖与临床》2002,7(3):74-76,F004
目的 :探讨一氧化氮合酶 (NOS)在兔急性上颌窦炎 (AMS)窦粘膜中的表达及其意义。方法 :健康新西兰白兔 36只 ,分为空白、阴性对照组和AMS组。通过阻塞窦口并注入 1.0ml的肺炎链球菌悬液 (10 9CFU)建立AMS模型 ,观察时间点为自手术第 5、10天。应用黄递酶———NADPH组织化学技术 ,以NADPH脱氢酶特异性测定NOS在空白、阴性对照组和AMS组兔上颌窦粘膜中的分布及不同时间点AMS组NOS活性表达。结果 :正常和急性上颌窦炎兔窦粘膜酶化学染色均有反应 ,主要分布于粘膜上皮、血管内皮和腺体细胞 (染色程度与正常组相比 ,P<0 .0 5或P <0 .0 1)。结论 :正常兔上颌窦粘膜存在NOS ,一氧化氮 (NO)与上颌窦急性炎症有关 ,炎症时NOS活性明显增高 ,过多的NO会对组织或细胞产生损伤 ,提示NO在AMS发病机制中有重要意义  相似文献   

4.
5.
急性上颌窦炎粘膜上皮表面凝集素受体的表达及意义   总被引:1,自引:0,他引:1  
杨晓煜  郑鸣  康仲涵  吴小茜  张更 《解剖学杂志》2003,26(5):424-426,F002
目的:探讨凝集素受体在急性上颌窦炎粘膜上皮表面的表达及意义。方法:利用已建立的实验动物模型将急性炎症标本及正常鼻窦粘膜标本行凝集素亲合组织化学ABC法染色。结果:正常鼻窦粘膜上皮表面欧州白脉根凝集素(LTL)和花生凝集素(PNA)染色基本阴性,而炎症粘膜呈弱阳性;双花扁豆凝集素(DBA)在炎症粘膜染色阳性减弱;N—PNA(预先经神经氨酸酶处理后再进行PNA染色)染色其阳性均显著加深。结论:上颌窦急性炎症期,粘膜上皮表面糖复合物糖链发生改变,这种改变可能一方面是致病菌侵袭的结果,另一方面也是机体局部抵抗炎症的重要防御因素之一。  相似文献   

6.
PurposeThis study aimed to propose an effective end-to-end process in medical imaging using an independent task learning (ITL) algorithm and to evaluate its performance in maxillary sinusitis applications.Materials and MethodsFor the internal dataset, 2122 Waters’ view X-ray images, which included 1376 normal and 746 sinusitis images, were divided into training (n=1824) and test (n=298) datasets. For external validation, 700 images, including 379 normal and 321 sinusitis images, from three different institutions were evaluated. To develop the automatic diagnosis system algorithm, four processing steps were performed: 1) preprocessing for ITL, 2) facial patch detection, 3) maxillary sinusitis detection, and 4) a localization report with the sinusitis detector.ResultsThe accuracy of facial patch detection, which was the first step in the end-to-end algorithm, was 100%, 100%, 99.5%, and 97.5% for the internal set and external validation sets #1, #2, and #3, respectively. The accuracy and area under the receiver operating characteristic curve (AUC) of maxillary sinusitis detection were 88.93% (0.89), 91.67% (0.90), 90.45% (0.86), and 85.13% (0.85) for the internal set and external validation sets #1, #2, and #3, respectively. The accuracy and AUC of the fully automatic sinusitis diagnosis system, including site localization, were 79.87% (0.80), 84.67% (0.82), 83.92% (0.82), and 73.85% (0.74) for the internal set and external validation sets #1, #2, and #3, respectively.ConclusionITL application for maxillary sinusitis showed reasonable performance in internal and external validation tests, compared with applications used in previous studies.  相似文献   

7.
David BenEzra  MD  PhD   《Allergy》1995,50(S21):30-335
In a primary healthcare facility, there are certain 'rules of thumb' that can be recommended for the diagnosis and treatment of conjunctivitis. The type of discharge is a crucial factor in the differential diagnosis and can also be a clue towards the management in primary care. It is important to identify whether the conjunctivitis is an isolated case or part of another disease, and if it is acute or chronic, and I would suggest taking a smear or culture sample whenever possible. When the aetiology is not clear, I would try antibiotics. If the patient is allergic, and an allergic conjunctivitis is suspected, the best management today is to use mast cell stabilisers, and combine these with conservative measures of frequent washings, and compresses. If the aetiology remains doubtful, or if there is no obvious improvement using these treatments, the patient should be re-evaluated and/or referred to an ophthalmologist or specialist eye centre. The use of corticosteroids for conjunctivitis should certainly be avoided in primary healthcare. Conjunctivitis is often self-limited and the drug-induced consequences of improper management can be far more devastating than the disease itself.  相似文献   

8.
9.
The aim of this study was to compare the immunohistochemical expression of matrix metalloproteinases (MMPs) 1, 2, and 9 in odontogenic myxomas and dental germ papillae.  相似文献   

10.
Neuroscience and Behavioral Physiology - This article addresses questions of the pathogenesis of inflammatory and degenerative diseases of the nervous system using Parkinson’s disease,...  相似文献   

11.
The objective of this study was to assess symptoms and signs in patients with maxillary sinusitis and a bacteriological diagnosis obtained by sinus aspiration or lavage. Designed as a prospective cohort study in general practice, the study included 174 patients, aged 18–65 years, suspected of having acute maxillary sinusitis by their general practitioner. The main outcome measures were the independent association of symptoms, signs, erythrocyte sedimentation rate (ESR), and C‐reactive protein (CRP) concentration and confirmed infection with the predominant bacterial pathogens Streptococcus pneumoniae and Haemophilus influenzae. The predominant organisms found in patients with acute maxillary sinusitis were Spneumoniae and H. influenzae. Body temperature >38 °C and maxillary toothache were significantly associated with the presence of Spneumoniae and H. influenzae. Positive bacteriological culture results were significantly associated with increasing ESR and CRP values. None of the symptoms and signs, with the exception of body temperature >38 °C and maxillary toothache, were particularly sensitive indicators of the specific aetiology in patients with acute maxillary sinusitis. Elevated ESR and CRP values were significantly associated with positive bacteriological culture results. On the other hand, absence of these symptoms and signs did not exclude the presence of acute maxillary sinusitis.  相似文献   

12.
Neuroscience and Behavioral Physiology - This review addresses current published data on the diagnosis and treatment of mild cognitive impairment (MCI). MCI is not the normal accompaniment of aging...  相似文献   

13.
The objective of this study was to evaluate the association between changes revealed by computerized tomography scan (CT) and symptoms, signs, and bacteriological diagnoses in a general practice population who had been diagnosed with acute maxillary sinusitis (AMS). This study was designed as a prospective cohort study in Danish general practice in cooperation with the otorhinolaryngology and neuroradiology departments at Aalborg County Hospital. One hundred and seventy-four patients, aged 18-65 years, suspected of having AMS were included. The strongest associations were with purulent nasal discharge, preceding upper respiratory tract infection, maxillary toothache and oedema over the maxillary sinuses. Self-reported previous sinusitis was negatively associated with sinus infection. There was a strong association between increasing values of C-reactive protein (CRP) and erythrocyte sedimentation rate and changes on the CT scan. CT scans contributed only little to the final diagnosis, whereas increased CRP values and elevated erythrocyte sedimentation rates were more reliable indicators of inflammation in the sinuses.  相似文献   

14.
白梦箫  刘晨 《医学信息》2019,(20):45-48
子宫内膜息肉(EPs)是妇科常见的一种子宫内膜病变,其发病原因可能与局部或全身雌孕激素异常有关。临床上大部分EPs患者都存在异常子宫出血的表现,也有患者未表现出任何临床症状,偶然在体检或不孕检查时发现。随着医学技术的发展,对于EPs的诊治日益成熟,本文就EPs的发病原因、诊断方法、治疗手段及术后预防复发作一综述,通过分析EPs发病原因,对比各类诊断方法优缺点,结合目前临床现状,为临床治疗提供参考。  相似文献   

15.

INTRODUCTION:

Hypophosphatemic rickets represents a group of heritable renal disorders of phosphate characterized by hypophosphatemia, normal or low serum 1,25 (OH)2 vitamin D and calcium levels. Hypophosphatemia is associated to interglobular dentine and an enlarged pulp chambers.

AIM:

Our goal was to verify the dental abnormalities and the oral health condition in these patients.

MATERIAL AND METHODS:

Prospective study of oral conditions in patients with Hypophosphatemic rickets. This report employed a simple method to be easily reproducible: oral clinical exam and radiographic evaluation.

RESULTS:

Fourteen patients were studied, 5 males, median age of 11years (4 to 26). Occlusion defects (85,7%) and enamel hypoplasia (57,1%) were significant more frequently than dental abscesses (one patient). We observed enlarged pulp chambers in 43% of the patients and hypoplasia and dentin abnormalities in 14,3%. We could not detect a significant correlation between dental abnormalities and delayed treatment (p>0,05). DMFT index for 6 to 12 years patients (n = 12) showed that the oral health is unsatisfactory (mean DMFT =  5).

CONCLUSIONS:

Patients with Hypophosphatemic Rickets frequently present dental alterations and these are not completely recovered with the treatment, unless dental abscess and they need a periodical oral examination.  相似文献   

16.
Cases of invasive fungal lesions involving the paranasal sinuses are generally diagnosed either on histologic examination or on fungal culture. Here, we report a case of invasive fungal sinusitis diagnosed primarily by a fine‐needle aspiration biopsy (FNAB). Our patient was a 36‐year‐old male who presented with a history of slowly progressive, painless swelling over the left cheek. The only positive clinical finding was a bony hard swelling in the left maxillary region, which was clinically interpreted as “fibrous dysplasia.” A computed tomographic (CT) examination of the paranasal sinuses showed a soft tissue attenuation lesion involving the bilateral maxillae, with the destruction of multiple bones and involvement of multiple sinuses and the bilateral orbits. FNAB of the maxillary swelling showed several giant cells, many of them exhibiting ingested organisms with a morphologic resemblance to the Aspergillus species of fungi. Strikingly, no significant inflammatory cells were seen on cytologic smears. Unfortunately, owing to a lack of initial clinical suspicion, as well as the patient's loss to further follow‐up, a culture/histopathologic examination could not be carried out. This case is presented chiefly to highlight the clinical utility of a simple FNAB procedure, as an initial diagnostic modality in cases of fungal sinusitis, which can masquerade clinically as a neoplastic lesion. In addition, if radiologic findings are also available at the time of cytologic examination, a pretherapeutic comment on the invasive nature of the lesion can also be made. Diagn. Cytopathol. 2010. © 2009 Wiley‐Liss, Inc.  相似文献   

17.
We report a case of nocardiosis in an immunosuppressed elderly patient who presented with prolonged pyrexia. Nocardia asteroides was isolated from the thyroid, with CT scan evidence of dissemination to the brain, abdomen and lungs. The patient succumbed to illness despite aggressive therapy. Autopsy could not be performed. To the best of our knowledge, this is the first reported case from India, on Nocardia asteroides affecting the thyroid tissue.  相似文献   

18.
19.
Melioidosis is a tropical disease caused by the Gram-negative bacillus Burkholderia pseudomallei. High rates of mortality among acute melioidosis survivors remain an unresolved problem and require prompt and appropriate diagnosis and treatment. Currently, the diagnosis relies on conventional methods, including culture, Gram stain, and biochemical testing. However, a reliable point-of-care test could enable earlier treatment and improve outcomes. Several immunological and molecular assays have been developed to overcome the limitations of conventional methods and to improve the efficiency of detection. Genotyping assays have played an important role in tracking the source of acquired B. pseudomallei infection and predicted its molecular epidemiology. Here, we review currently applied diagnostic protocols and treatment regimens for melioidosis and provide updates with respect to future diagnostic methods for the pathogen.  相似文献   

20.
Regenerative medicine is an emerging field of biotechnology that combines various aspects of medicine, cell and molecular biology, materials science and bioengineering in order to regenerate, repair or replace tissues.The oral surgery and maxillofacial surgery have a role in the treatment of traumatic or degenerative diseases that lead to a tissue loss: frequently, to rehabilitate these minuses, you should use techniques that have been improved over time. Since 1990, we started with the use of growth factors and platelet concentrates in oral and maxillofacial surgery; in the following period we start to use biomaterials, as well as several type of scaffolds and autologous tissues. The frontier of regenerative medicine nowadays is represented by the mesenchymal stem cells (MSCs): overcoming the ethical problems thanks to the use of mesenchymal stem cells from adult patient, and with the increasingly sophisticated technology to support their manipulation, MSCs are undoubtedly the future of medicine regenerative and they are showing perspectives unimaginable just a few years ago. Most recent studies are aimed to tissues regeneration using MSCs taken from sites that are even more accessible and rich in stem cells: the oral cavity turned out to be an important source of MSCs with the advantage to be easily accessible to the surgeon, thus avoiding to increase the morbidity of the patient.The future is the regeneration of whole organs or biological systems consisting of many different tissues, starting from an initial stem cell line, perhaps using innovative scaffolds together with the nano-engineering of biological tissues.  相似文献   

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