Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 10 de 10
Filtrar
Mais filtros










Base de dados
Intervalo de ano de publicação
1.
Indian J Otolaryngol Head Neck Surg ; 75(3): 1864-1869, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37636704

RESUMO

This study utilized AIML (artificial intelligence & machine learning) techniques to analyze 115 images of central perforation of tympanic membrane obtained from Telemyringoscopy through Borescope in order to establish a facilitation-model for the community ear diagnosis. The Modified VGG19 with batch normalization revealed the highest training accuracy of 85 as compared to other CNN techniques. The training accuracy started to saturate around mid-70% and the Test accuracy was around 50%. Although AIML did not reveal a high predictive value, its potential based on our observations cannot be underestimated considering many limitations (sample size, image-quality, associated pathologies, illumination-factor) in this study. Such limitations if resolved may revolutionize community ear care through a better cost effective tele-myringoscopy with innovations in AIML/ telemedicine.

2.
Orthop J Sports Med ; 11(5): 23259671231158373, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37152548

RESUMO

Background: Reconstruction is the gold standard treatment for medial ulnar collateral ligament (MUCL) injuries. However, recent studies show a successful and renewed interest in direct suture repair, particularly in young athletes. Repair augmentation with a suture tape may provide greater stability, enabling healing of the MUCL while protecting the repair at higher valgus loads. Purpose: To perform a systematic review and meta-analysis on whether MUCL repair with augmentation provides a similar biomechanical profile to the traditional MUCL reconstruction. Study Design: Systematic review. Methods: The Cochrane Controlled Register of Trials, PubMed, Medline, and Embase were used to perform a systematic review and meta-analysis using the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) criteria with the following search terms: ("ulnar collateral ligament" OR "medial ulnar collateral ligament") AND ("internal brace" OR "augmentation" OR "suture tape"). Data pertaining to certain biomechanical properties (gap formation, failure to torque [ultimate load to failure], stiffness, degree of valgus opening, and modes of failure) were extracted. The pooled outcome data were analyzed by random- and fixed-effects models. A total of 203 abstracts were identified through the aforementioned databases. Results: After abstract and full-text screening, 6 biomechanical studies were included. All were on cadaveric elbows, with 53 repairs with augmentation and 53 reconstructions compared. There were no differences between the 2 in regard to ultimate load to failure (standard mean difference [SMD], -0.34 N·m; 95% CI, -1.36 to 0.68; P = .51) and rotational stiffness (SMD, 0.26; 95% CI, -1.14 to 1.66; P = .72). Despite a trend in resistance to gapping with augmented repair, this was not significant (SMD, -0.53; 95% CI, -1.08 to 0.01; P = .06). Augmented repairs were more likely to fail by pullout or at the suture-tendon/anchor-suture interface (odds ratio [OR], 12.19; 95% CI, 4.17 to 35.62; P < .00001), while failure by fracture was more common with reconstruction (OR, 5.75; 95% CI, 2.07 to 15.99; P = .0008). Conclusion: MUCL augmented repair establishes the required time-zero structural properties without the need for a tendon graft. However, future clinical studies are necessary to determine its true effectiveness as well as its success at higher levels of professional sport.

3.
Mol Neurobiol ; 60(3): 1515-1526, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36512265

RESUMO

Post-menopausal women are at a higher risk of developing Alzheimer's disease (AD) than males. The higher rates of AD in women are associated with the sharp decline in the estrogen levels after menopause. Estrogen has been shown to downregulate inflammatory cytokines in the central nervous system (CNS), which has a neuroprotective role against neurodegenerative diseases including AD. Sustained neuroinflammation is associated with neurodegeneration and contributes to AD. Nuclear factor kappa-B (NF-κB) is a transcription factor involved with the modulation of inflammation and interacts with estrogen to influence the progression of AD. Application of 17ß-estradiol (E2) has been shown to inhibit NF-κB, thereby reducing transcription of NF-κB target genes. Despite accumulating evidence showing that estrogens have beneficial effects in pre-clinical AD studies, there are mixed results with hormone replacement therapy in clinical trials. Furthering our understanding of how NF-κB interacts with estrogen and alters the progression of neurodegenerative disorders including AD, should be beneficial and result in the development of novel therapeutics.


Assuntos
Doença de Alzheimer , NF-kappa B , Feminino , Humanos , Masculino , Doença de Alzheimer/metabolismo , Doença de Alzheimer/patologia , Estradiol/farmacologia , Estrogênios/uso terapêutico
4.
Indian J Otolaryngol Head Neck Surg ; 74(1): 121-122, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33102189

RESUMO

This pilot observation intends to stress on web-based hearing assessment (WBHA) as somewhat parallel to clinical pure tone audiometry. While WBHA was comparable with PTA in context of severity of deafness particularly in symmetrical hearing loss, it was inconclusive for a gross asymmetry despite multiple trials. With increasing COVID transmission, more need for social distancing and lack of audiologists in developing countries, the self-participation by patients in WBHA model will prove to be a very safe model of deafness-screening.

5.
Foot Ankle Int ; 42(9): 1162-1170, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-33899531

RESUMO

BACKGROUND: Several studies have reported on potential negative predictive factors of functional outcomes after ankle fracture fixation. However, there is minimal patient-reported data on long-term outcomes. This study aimed to evaluate potential risk factors leading to a poor patient-reported functional outcome at 2 and 5 years following ankle fracture fixation. METHODS: We conducted a prospective cohort study over a 5-year period on patients undergoing open reduction and internal fixation for unstable ankle fractures. Patient demographics, medical comorbidities, fracture pattern, and fixation quality were recorded and analyzed. Patients were followed up at 2 and 5 years. Data collected include the Olerud-Molander Ankle Score (OMAS), Lower Extremity Functional Scale (LEFS), ongoing issues, and the need for further intervention. A P value <.05 was considered statistically significant. RESULTS: Out of 180 patients, follow-up data were available for 82 (46%) patients at 2 years and 94 (52%) patients at 5 years. At 2 years, age ≥60 years was a predictor of worse LEFS, while a body mass index ≥30 was a predictor of worse OMAS. Severely deformed ankle at presentation showed worse OMAS and LEFS score. However, these predictive factors were not significant at 5 years. An anatomically reduced ankle fracture fixation was more likely to have a better functional outcome at the 2- and 5-year follow-ups. A reduction in OMAS at 2 years was predictive of possible ongoing issues following surgery, which in turn increased the odds of worsening OMAS at 5 years. CONCLUSION: Achieving adequate fracture reduction during fixation is crucial for better ankle functional recovery postinjury. In this cohort, we found that patients who undergo ankle fracture fixation will have an ongoing negative impact on their functional and physical capacity at both 2 and 5 years postoperatively. Appropriate patient counseling is necessary to prepare them for the expected functional outcomes. LEVEL OF EVIDENCE: Level II, prognostic.


Assuntos
Fraturas do Tornozelo , Tornozelo , Fraturas do Tornozelo/cirurgia , Articulação do Tornozelo/cirurgia , Fixação de Fratura , Fixação Interna de Fraturas , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Resultado do Tratamento
6.
Cureus ; 12(12): e11959, 2020 Dec 07.
Artigo em Inglês | MEDLINE | ID: mdl-33312828

RESUMO

Purpose Distal radial fractures in the elderly are common and present in a wide spectrum of severity. Their management is varied. The aim of this retrospective case review is to evaluate the late functional outcome of surgically treated distal radial fractures in the elderly population. Methods Forty-two patients (36 female and six male) were surgically treated for an unstable distal radial fracture. The mean age of the patients was 75 years. Frykman classification was used to assess the severity of the injury. Surgical options used were reduction and K wires (19 patients) or open reduction and internal fixation (ORIF) using volar distal radial plate fixation (23 patients). At a mean follow-up of 5.4 years, a validated questionnaire (Patient Rated Wrist Evaluation-PRWE) of the functional ability was completed for each patient. Results The outcome in both groups was satisfactory (PRWE 40-50) with no significant statistical difference, however, a better functional outcome (<40 PRWE) was achieved in the K wire group compared to the ORIF group. Factors such as post injury fear from fall, weakness of grip, wrist pain, and other comorbidities altered the predicted functional outcome score. Conclusion In conclusion, surgically treated fractures in the elderly generally lead to good outcomes. However, confounding factors can contribute to unpredictable results despite good surgical reduction and fixation.

7.
Indian J Otolaryngol Head Neck Surg ; 71(3): 352-359, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31559203

RESUMO

The incorporation of telemedicine and artificial intelligence for early screening and assessment of severity of life-style disorders has a great potential for better assessment in a busy outpatient clinic and thereby curtail down the related morbidities. A computer based algorithm based upon standardized questionnaire (from established assessment tools) is designed to assess the risk of obstructive sleep apnoea syndrome (OSAS). In addition the incorporation of basic screening questions of anamnesis help in suggesting a probable diagnosis of sleep related disorder as well. The overall data at our center has been analyzed to establish the existing pattern of sleep related disorders. Of 850 healthy subjects screened, prevalence of snoring was 20.47% while OSAS was seen in 4.20% (N = 25) in males and 2.64% (N = 8) in females. The parasomnia was most prevalent (14.71%), followed by insomnia (10.24%), periodic leg movement (6.59%), bruxism (1.65%) and narcolepsy (0.59%). Hypertension, laryngopharyngeal reflux and obesity were the common co-morbidities in OSAS while family history of hypertension and diabetes were common in snorers. A significant association with OSA was seen with diabetes mellitus, neck circumference and nasal obstruction, while, obesity and apnoeic episodes were more significantly associated with OSA than snorers. Increased waist to hip ratio was appreciated in both the OSAS and snorers. The algorithm based online assessment is likely to diagnose the occult clinical cases as well as assess the risk of OSAS. In routine outpatient clinic, a clinician may better assess the patient morbidity with a comprehensive availability of symptoms and moreover enhance the post-treatment compliance. In addition a smartphone based computerized assessment for general population may be designed for other lifestyle disorders as well.

8.
Neurosurgery ; 83(4): E146-E152, 2018 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-30060028
9.
Infect Genet Evol ; 43: 173-8, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-27174088

RESUMO

Highly pathogenic avian influenza (HPAI) H5N1 viruses are a threat to poultry in Asia, Europe, Africa and North America. Here, we report isolation and characterization of H5N1 viruses isolated from ducks and turkeys in Kerala, Chandigarh and Uttar Pradesh, India between November 2014 and March 2015. Genetic and phylogenetic analyses of haemagglutinin gene identified that the virus belonged to a new clade 2.3.2.1c which has not been detected earlier in Indian poultry. The virus possessed molecular signature for high pathogenicity to chickens, which was corroborated by intravenous pathogenicity index of 2.96. The virus was a reassortant which derives its PB2 gene from H9N2 virus isolated in China during 2007-2013. However, the neuraminidase and internal genes are of H5N1 subtype. Phylogenetic and network analysis revealed that after detection in China in 2013/2014, the virus moved to Europe, West Africa and other Asian countries including India. The analyses further indicated multiple introductions of H5N1 virus in Indian poultry and internal spread in Kerala. One of the outbreaks in ducks in Kerala is linked to the H5N1 virus isolated from wild birds in Dubai suggesting movement of virus probably through migration of wild birds. However, the outbreaks in ducks in Chandigarh and Uttar Pradesh were from an unknown source in Asia which also contributed gene pools to the outbreaks in Europe and West Africa. The widespread incidence of the novel H5N1 HPAI is similar to the spread of clade 2.2 ("Qinghai-like") virus in 2005, and should be monitored to avoid threat to animal and public health.


Assuntos
Surtos de Doenças , Virus da Influenza A Subtipo H5N1/genética , Vírus da Influenza A Subtipo H9N2/genética , Influenza Aviária/epidemiologia , Filogenia , Vírus Reordenados/genética , África/epidemiologia , Animais , Galinhas/virologia , Patos/virologia , Monitoramento Epidemiológico , Europa (Continente)/epidemiologia , Expressão Gênica , Glicoproteínas de Hemaglutininação de Vírus da Influenza/genética , Índia/epidemiologia , Virus da Influenza A Subtipo H5N1/classificação , Vírus da Influenza A Subtipo H9N2/classificação , Influenza Aviária/transmissão , Influenza Aviária/virologia , Neuraminidase/genética , Filogeografia , Aves Domésticas/virologia , Vírus Reordenados/classificação , Perus/virologia
10.
J Epidemiol Glob Health ; 5(4 Suppl 1): S11-8, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25936795

RESUMO

A house based survey was conducted during 2007-2009 in a representative sample of population in Wardha district implementing Directly Observed Treatment Short Course strategy for tuberculosis (TB) control since 2001. The objective was to estimate prevalence of bacillary pulmonary TB (PTB) in individuals aged 15 years or above, and to estimate trends in prevalence when compared to a previous survey carried out in mid 1980's. Two sputum samples (one spot, one early morning) collected from individuals having symptoms suggestive of PTB, history of previous anti-TB treatment (ATT) or abnormal pulmonary shadow on Mass Miniature Radiography (MMR) consistent with possibly or probably active tuberculosis were subjected to Ziehl-Neelsen microscopy and culture on Lowenstein-Jensen medium. Of 55,096 individuals registered into the survey, 50,332 (91.4%) were screened by interview for symptoms and history of ATT and/or by MMR. Of them, 4805 were eligible for sputum collection; both specimens were collected in 4285 (89.2%) and only one specimen in 27 (0.6%). A total of 86 bacillary cases were detected during the survey. Prevalence of bacillary PTB was estimated at 188.7 (140.3-236.9) per 100,000 populations. There was a decline of 61% in the prevalence of PTB over a period of 22 years.


Assuntos
Tuberculose Pulmonar/epidemiologia , Adolescente , Adulto , Idoso , Feminino , Inquéritos Epidemiológicos , Humanos , Índia/epidemiologia , Masculino , Pessoa de Meia-Idade , Mycobacterium tuberculosis/isolamento & purificação , Prevalência , População Rural/estatística & dados numéricos , Escarro/microbiologia , População Urbana/estatística & dados numéricos , Adulto Jovem
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...