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1.
Telemed J E Health ; 30(6): e1667-e1676, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38436592

RESUMEN

Introduction: Telehealth in India is growing rapidly and represents a strategy to promote affordable, inclusive, timely and safe access to healthcare. Yet there is a risk that telehealth increases inequity due to the digital divide and existing poor health literacy. Methods: A scoping review was conducted to explore use of telehealth in India during and following the COVID-19 pandemic by people with disabilities to inform strategies to increase equity of telehealth for people with disabilities. Of 1966 studies from the initial search in four databases and three specific telehealth journals, 20 sources met the inclusion criteria, limited to a focus on physical disability in India. Results: Findings showed examples of how people with disabilities can exercise increased control in the timing of appointments, convenience of receiving services from home and not having to travel to clinics or hospitals, and platform preference through tools and applications already familiar to them. Carers and families of people with disabilities were described as highly valued stakeholders with important roles in the uptake and effectiveness of telehealth for people with disabilities. The identified benefits of telehealth resulted in high levels of user satisfaction due to increased control and convenience, however, systemic barriers for accessibility remain. Conclusion: This review suggested that if telehealth is not designed intentionally to change the status quo for people with disabilities and prioritize equity, then the benefits may not be sustainable. Recommendations for telehealth India are provided, based on both findings from the literature and analysis of results.


Asunto(s)
COVID-19 , Personas con Discapacidad , Equidad en Salud , Accesibilidad a los Servicios de Salud , SARS-CoV-2 , Telemedicina , Humanos , COVID-19/epidemiología , India/epidemiología , Telemedicina/organización & administración , Accesibilidad a los Servicios de Salud/organización & administración , Pandemias
2.
J Digit Imaging ; 33(6): 1499-1513, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-32661812

RESUMEN

The Digital Image and Communications in Medicine (DICOM) viewer is a very useful component in telemedicine applications. Owing to increased demand, adoption, and prospects of browser-based software in the recent past, web-based DICOM viewers have gained significant ground. There are myriad web-based DICOM viewers which are open source and are available free of cost as stand-alone applications. These freely available tools have rich functionality like the commercial ones. To find an optimal DICOM viewer for integration with a web-based telemedicine solution is quite a challenge, and no research has gone into assessing these freely available DICOM viewers. This research assessed a range of web-based, open-source, and freely available DICOM viewers from the perspective of their integration with the Indian National Telemedicine Solution (eSanjeevani). To introduce teleradiology module in eSanjeevani, a study is carried out to enable viewing of radiological images through DICOM viewer. eSanjeevani is being prepared for a national roll-out at 155,000 health and wellness centers across rural India by the Ministry of Health and Family Welfare (Government of India) under the Ayushman Bharat Scheme (the world's largest health insurance scheme). In total, 13 free, open-source, and web-based DICOM viewers were identified for evaluation; however, only six were shortlisted as assessed. This study can serve as a one-stop source for researchers looking for a suitable DICOM viewer for their healthcare IT applications.


Asunto(s)
Internet , Sistemas de Información Radiológica , Humanos , India , Programas Informáticos , Telerradiología
3.
Neuroophthalmology ; 44(2): 89-99, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-32395155

RESUMEN

The objective of the present study was to understand control of saccadic eye movements in patients with young onset Parkinson's disease (YOPD) where onset of disease symptoms appears early in life (<40 years of age). Functional magnetic resonance imaging (fMRI) was performed in patients with YOPD and control subjects while they performed saccadic tasks, which consisted of a reflexive task and another task that required inhibitory control of eye movements (Go-NoGo task). Functional imaging related to saccadic eye movements in this group of patients has not been widely reported. A 1.5T MR scanner was used for structural and functional imaging. Analysis of blood-oxygen-level-dependent (BOLD) fMRI was performed using Statistical Parametric Mapping (SPM) software and compared in patients and controls. In patients with YOPD greater activation was seen significantly in the middle frontal gyrus, medial frontal gyrus, angular gyrus, cingulate gyrus, precuneus and cerebellum, when compared with the control group, during the saccadic tasks. Gap and overlap protocols revealed differential activation patterns. The abnormal activation during reflexive saccades was observed in the overlap condition, while during Go-NoGo saccades in the gap condition. The results suggest that impaired circuitry in patients with YOPD results in recruitment of more cortical areas. This increased frontal and parietal cortical activity possibly reflects compensatory mechanisms for impaired cognitive and saccadic circuitry.

4.
Psychol Sci ; 25(9): 1739-47, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25037963

RESUMEN

People find it appealing to have more options to choose from, but the provision of choice often leads to adverse consequences for decision makers' motivation, satisfaction, and willingness to act. We propose that the effect of the number of choice options on willingness to purchase is moderated by people's subjective knowledge (SK). The results of three studies provide converging evidence that, paradoxically, people who feel unknowledgeable (low-SK people) in a certain domain are especially willing to purchase when more choice options are available, which is consistent with the notion of "more is better." This pattern is reversed for people who feel knowledgeable (high-SK people), which is consistent with prior evidence for choice overload. We also show that this pattern is influenced by the informativeness of the features of the available choice options and that subjective knowledge mediates this effect.


Asunto(s)
Conducta de Elección , Autoimagen , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Motivación , Satisfacción Personal , Adulto Joven
5.
Indian J Physiol Pharmacol ; 57(4): 354-60, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-24968573

RESUMEN

Selective attention is the cognitive process of selecting and processing the task relevant information and ignoring the task irrelevant information. Though the neural substrates involved in this cognitive process are well established, the mechanism of selection process is the point of contention. To study the effect of selection process on the information processing we performed functional neuroimaging on 23 healthy righthanded male subjects while performing a modified face word stroop task. The word processing area did not show any attention dependent changes in the level of activity whereas the activity of face processing area was higher when the faces were target, but there was no decrease in baseline activity when faces were distractors. Our results suggest that during selective attention there is no biasing of sensory processing for automatically processed stimuli like words whereas there is amplification of task relevant information when stimuli are processed in controlled manner.


Asunto(s)
Atención , Mapeo Encefálico/métodos , Ondas Encefálicas , Encéfalo/fisiología , Cognición , Cara , Imagen por Resonancia Magnética , Test de Stroop , Adulto , Lateralidad Funcional , Voluntarios Sanos , Humanos , Masculino , Ocupaciones , Estimulación Luminosa , Valor Predictivo de las Pruebas
6.
BMC Health Serv Res ; 12: 277, 2012 Aug 27.
Artículo en Inglés | MEDLINE | ID: mdl-22925029

RESUMEN

BACKGROUND: Usually patients receive healthcare services from multiple hospitals, and consequently their healthcare data are dispersed over many facilities' paper and electronic-based record systems. Therefore, many countries have encouraged the research on data interoperability, access, and patient authorization. This study is an important part of a national project to build an information exchange environment for cross-hospital digital medical records carried out by the Department of Health (DOH) of Taiwan in May 2008. The key objective of the core project is to set up a portable data exchange environment in order to enable people to maintain and own their essential health information.This study is aimed at exploring the factors influencing behavior and adoption of USB-based Personal Health Records (PHR) in Taiwan. METHODS: Quota sampling was used, and structured questionnaires were distributed to the outpatient department at ten medical centers which participated in the DOH project to establish the information exchange environment across hospitals. A total of 3000 questionnaires were distributed and 1549 responses were collected, out of those 1465 were valid, accumulating the response rate to 48.83%. RESULTS: 1025 out of 1465 respondents had expressed their willingness to apply for the USB-PHR. Detailed analysis of the data reflected that there was a remarkable difference in the "usage intention" between the PHR adopters and non-adopters (χ2 =182.4, p < 0.001). From the result of multivariate logistic regression analyses, we found the key factors affecting patients' adoption pattern were Usage Intention (OR, 9.43, 95%C.I., 5.87-15.16), Perceived Usefulness (OR, 1.60; 95%C.I., 1.11-2.29) and Subjective Norm (OR, 1.47; 95%C.I., 1.21-1.78). CONCLUSIONS: Higher Usage Intentions, Perceived Usefulness and Subjective Norm of patients were found to be the key factors influencing PHR adoption. Thus, we suggest that government and hospitals should promote the potential usefulness of PHR, and physicians should encourage patients' to adopt the PHR.


Asunto(s)
Participación de la Comunidad , Difusión de Innovaciones , Registros de Salud Personal/psicología , Almacenamiento y Recuperación de la Información/métodos , Aceptación de la Atención de Salud/psicología , Adulto , Actitud hacia los Computadores , Seguridad Computacional/normas , Confidencialidad/psicología , Femenino , Humanos , Entrevistas como Asunto , Masculino , Informática Médica/métodos , Registro Médico Coordinado , Persona de Mediana Edad , Servicio Ambulatorio en Hospital/estadística & datos numéricos , Aceptación de la Atención de Salud/estadística & datos numéricos , Análisis de Regresión , Factores Socioeconómicos , Encuestas y Cuestionarios , Taiwán
7.
Indian Heart J ; 71(4): 309-313, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31779858

RESUMEN

OBJECTIVE: Hypertension is the most important risk factor for cardiovascular morbidity and mortality. There is limited data on hypertension prevalence in India. This study was conducted to estimate the prevalence of hypertension among Indian adults. METHODS: A national level survey was conducted with fixed one-day blood pressure measurement camps across 24 states and union territories of India. Hypertension was defined as systolic blood pressure (BP) ≥140 mmHg or a diastolic BP ≥90 mmHg or on treatment for hypertension. The prevalence was age- and gender-standardized according to the 2011 census population of India. RESULTS: Blood pressure was recorded for 180,335 participants (33.2% women; mean age 40.6 ± 14.9 years). Among them, 8,898 (4.9%), 99,791 (55.3%), 35,694 (11.9%), 23,084 (12.8%), 9,989 (5.5%), and 2,878 (1.6%) participants were of the age group 18-19, 20-44, 45-54, 55-64, 65-74, and ≥ 75 years, respectively. Overall prevalence of hypertension was 30.7% (95% confidence interval [CI]: 30.5, 30.9) and the prevalence among women was 23.7% (95% CI: 23.3, 24). Prevalence adjusted for 2011 census population and the WHO reference population was 29.7% and 32.8%, respectively. CONCLUSION: There is a high prevalence of hypertension, with almost one in every three Indian adult affected.


Asunto(s)
Hipertensión/epidemiología , Adulto , Anciano , Determinación de la Presión Sanguínea , Femenino , Humanos , India/epidemiología , Masculino , Persona de Mediana Edad , Prevalencia
8.
World J Gastroenterol ; 24(34): 3821-3833, 2018 Sep 14.
Artículo en Inglés | MEDLINE | ID: mdl-30228777

RESUMEN

Recently, diabetic gastroparesis (DGP) has received much attention as its prevalence is increasing in a dramatic fashion and management of patients with DGP represents a challenge in the clinical practice due to the limited therapeutic options. DGP highlights an interrelationship between the gastric emptying and pancreatic secretory function that regulate a wide range of digestive and metabolic functions, respectively. It well documented that both gastric emptying and pancreatic secretion are under delicate control by multiple neurohormonal mechanisms including extrinsic parasympathetic pathways and gastrointestinal (GI) hormones. Interestingly, the latter released in response to various determinants that related to the rate and quality of gastric emptying. Others and we have provided strong evidence that the central autonomic nuclei send a dual output (excitatory and inhibitory) to the stomach and the pancreas in response to a variety of hormonal signals from the abdominal viscera. Most of these hormones released upon gastric emptying to provide feedback, and control this process and simultaneously regulate pancreatic secretion and postprandial glycemia. These findings emphasize an important link between gastric emptying and pancreatic secretion and its role in maintaining homeostatic processes within the GI tract. The present review deals with the neurohormonal-coupled mechanisms of gastric emptying and pancreatic secretory function that implicated in DGP and this provides new insights in our understanding of the pathophysiology of DGP. This also enhances the process of identifying potential therapeutic targets to treat DGP and limit the complications of current management practices.


Asunto(s)
Neuropatías Diabéticas/fisiopatología , Vaciamiento Gástrico/fisiología , Gastroparesia/fisiopatología , Neurotransmisores/fisiología , Páncreas/metabolismo , Estómago/fisiopatología , Glucemia/efectos de los fármacos , Neuropatías Diabéticas/sangre , Neuropatías Diabéticas/epidemiología , Hormonas Gastrointestinales/fisiología , Gastroparesia/epidemiología , Humanos , Insulina/farmacología , Insulina/uso terapéutico , Pruebas de Función Pancreática , Periodo Posprandial , Prevalencia , Estómago/inervación
9.
Int Urol Nephrol ; 50(1): 189, 2018 01.
Artículo en Inglés | MEDLINE | ID: mdl-29222708

RESUMEN

In the original publication, the second author's affiliation was incorrectly published as "Department of Physiology, RAK College of Medical Sciences, Ras Al Khaimah, UAE". The correct affiliation should read as "Visiting Academic, Basic Medical Sciences Department, College of Medicine, University of Sharjah (UAE)".

10.
Stud Health Technol Inform ; 130: 257-68, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-17917199

RESUMEN

Telemedicine is the use of communication networks to exchange medical information for providing healthcare services and medical education from one site to another. The application of telemedicine is more promising in economically developing countries with agrarian societies. The American Telemedicine Association (ATA) identifies three healthcare services: clinical medical services, health and medical education, and consumer health information. However, it is not clear how these services can be adopted by different sectors: public and private. This paper looks at four Indian case studies, two each in public and private sectors to understand two research questions: Are there differences in telemedicine adoption between public and private hospitals. If there are differences: What are the differences in telemedicine adoption between public and private sectors? Authors have used the extant literature in telemedicine and healthcare to frame theoretical background, describe the research setting, present the case studies, and provide discussion and conclusions about their findings. Authors believe that as India continues to develop its telemedicine infrastructures, especially with continued government support through subsidies to private telemedicine initiatives, its upward trend in healthcare will continue. This is expected to put India on the path to increase its life expectancy rates, especially for it rural community which constitute over 70% of its populace.


Asunto(s)
Sector Privado/organización & administración , Sector Público/organización & administración , Telemedicina/organización & administración , Atención a la Salud/organización & administración , Difusión de Innovaciones , Humanos , India , Estudios de Casos Organizacionales
11.
Int Urol Nephrol ; 49(11): 2071-2078, 2017 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-28900874

RESUMEN

BACKGROUND: The literature notes high prevalence of cognitive function (CF) impairment among hemodialysis patients. Renal transplantation by reversing metabolic factors should improve cognitive function; however, results in post-transplant patients are inconsistent. Lack of longitudinal studies, variable and small patient population, variable renal function and post-transplantation period and use of non-specific tests make results difficult to interpret. We looked at CF in stable hemodialysis patients just prior to live renal transplantation and approximately 3 months subsequently using well-validated electrophysiological study of P300 cognitive potential obtained by auditory oddball paradigm using multiple scalp electrodes. METHODS: Ten healthy age- and gender-matched controls (group 1) and 20 end-stage kidney disease (ESKD) male patients on maintenance hemodialysis with no other comorbidities that affect CF were studied before (group 2) and 3 months after successful transplantation (group 3). RESULTS: ESKD population had mean age of 29.7 ± 7.5 years, with mean dialysis vintage and post-transplant period being 10.3 ± 6.9 and 3.2 ± 0.4 months, respectively. Mean P300 latencies in groups 1, 2 and 3 were 319 ± 33.6, 348.6 ± 27.8 and 316.4 ± 33.4 ms, respectively (P < 0.001 group 1 vs 2 and group 2 vs 3; group 1 vs 3 NS). Mean P300 amplitude in groups 1, 2 and 3 was 27.9 ± 12.8, 13.4 ± 8.6 and 14.6 ± 9.4 µV, respectively (P < 0.001 group 1 vs 2 and group 1 vs 3; group 2 vs 3 NS). P300 latencies correlated negatively with hemoglobin and serum albumin. CONCLUSIONS: ESKD patients have impaired CF as documented by prolonged P300 latencies. There was normalization of P300 latencies post-transplantation indicating role of uremic toxins in CF impairment.


Asunto(s)
Cognición/fisiología , Potenciales Relacionados con Evento P300 , Fallo Renal Crónico/fisiopatología , Fallo Renal Crónico/terapia , Trasplante de Riñón , Adulto , Hemoglobinas/metabolismo , Humanos , Fallo Renal Crónico/psicología , Estudios Longitudinales , Masculino , Periodo Posoperatorio , Periodo Preoperatorio , Estudios Prospectivos , Diálisis Renal , Albúmina Sérica/metabolismo , Adulto Joven
12.
J Clin Diagn Res ; 11(3): CC13-CC16, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-28511378

RESUMEN

INTRODUCTION: Recording cortical potentials prior to movement (bereitschaftspotentials, BP) offer a good non invasive method for studying activity of motor related cortices in Parkinson's Disease (PD). Dopaminergic medications provide some symptomatic relief in advanced stages but they do not stop the progression of the disease. Assessing BP may be a good idea to see the response of anti PD drugs. It remains unclear whether the anti PD medications also improve cortical activity prior to movement even in advanced stages of the disease. AIM: In this study we recorded scalp BP in patients with varying grades of severity to study the relationship between disease severity and various components of BP. MATERIALS AND METHODS: We successfully recorded BP at Cz, C3 and C4 sites during self-initiated 100 right wrist movements in 12 male patients with PD having severity Hoehn and Yahn (H&Y) scale 4 (PD3 group). These potentials were compared with age matched patients with H&Y scale 2 (PD1) and scale 3 (PD2) and also with age matched healthy controls. RESULTS: We found flatter waveforms with increasing severity of disease. Amplitude is first to be affected in mild severity as compared to controls (p=0.011); while with increasing severity early as well as late part of potentials is affected. Such changes are prominently seen at Cz site across the groups. CONCLUSION: These findings imply that there is increasing defect in cortical activity during movement especially in supplementary motor area with increasing severity in PD in spite of dopaminergic medications. This dynamic nature of dysfunction in supplementary motor cortices must be taken in account while treating advanced cases using newer stimulation techniques.

13.
Clin Neurol Neurosurg ; 160: 30-37, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-28641127

RESUMEN

OBJECTIVE: Deep brain stimulation of subthalamic nucleus (DBS-STN) is a well-accepted treatment for Parkinson's disease (PD) but its effect on motor planning in the disease is yet unclear. This study examines the effect of switching the stimulation ON and OFF on components of bereitschaftspotentials in PD. PATIENTS AND METHODS: Scalp bereitschaftspotentials were recorded during self-paced right wrist extensions at Fz, Cz, Pz, C3 and C4 sites in patients on DBS-STN plus medications (DBS-STN group) as treatment modality or on medications only (Med group) and compared with age matched healthy controls. In DBS-STN group, the potentials were recorded in stimulation ON, stimulation OFF, and again after re-switching stimulation ON-2. Offline analysis of potentials was done to calculate peak amplitude, late slope (-500 to 0ms) and early slope (-1500 to -500ms). RESULTS: We observed that the two components of bereitschaftspotentials in stimulation ON state were comparable to those in age matched controls. The late slope was found to be significantly reduced during stimulation OFF as compared to stimulation ON at Cz (p<0.001), C3 (p<0.001) and C4 (p<0.01) electrode sites. This parameter failed to improve on re-switching stimulation ON at Cz (p<0.01). No significant change was observed in early part of bereitschaftspotentials among any of the conditions. CONCLUSION: Our study shows that DBS-STN along with anti-parkinsonian medications helps in improving both components of bereitschaftspotentials in PD. Switching stimulation OFF for fifteen minutes principally affects the late component i.e. the execution part of motor planning; which cannot be reversed by re-switching ON. Thus the chronic and acute effects of switching DBS-STN ON are different and principally affect the later part of motor planning.


Asunto(s)
Estimulación Encefálica Profunda/métodos , Electroencefalografía/métodos , Potenciales Evocados/fisiología , Actividad Motora/fisiología , Corteza Motora/fisiopatología , Enfermedad de Parkinson/fisiopatología , Enfermedad de Parkinson/terapia , Núcleo Subtalámico , Anciano , Electromiografía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Músculo Esquelético/fisiopatología , Enfermedad de Parkinson/tratamiento farmacológico , Resultado del Tratamiento
14.
World Hosp Health Serv ; 40(3): 29-30, 41, 43, 2004.
Artículo en Inglés | MEDLINE | ID: mdl-15566276

RESUMEN

Information and communications technologies have universally helped to bridge the digital divide. As an application of ICT, telemedicine is an efficient pathway for enabling health care delivery. Developing countries, too, have started reaping the benefits of this evolutionary technology, but realisation of such dreams has not been swift. The implementation of a pilot scheme in telemedicine in India has been confounded with challenges right from the very start. One of the prime lessons to be learnt from the implementation of a pilot project in a developing country is to keep the objectives of the project in small modules and to keep the deliverables within sight. An account of some of the challenges faced while developing telemedicine technology in India serves as a useful example for upcoming telemedicine programmes in Third World countries.


Asunto(s)
Difusión de Innovaciones , Implementación de Plan de Salud , Telemedicina , Benchmarking , Países en Desarrollo , India , Capacitación en Servicio , Objetivos Organizacionales , Proyectos Piloto
15.
J Clin Diagn Res ; 8(11): ND03-4, 2014 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-25584261

RESUMEN

Isolated aneurysms in iliac artery are not common. A 65-year-old male patient presented with complaints of pain abdomen, abdominal distension and history of hypertension, Clinical examination revealed pulsatile mass in the right iliac fossa extending upto paraumbilical region with palpable pulsations in all the limbs. Computed tomographic (CT) angiogram was done and it revealed large aneurysm of right common iliac artery. CT chest and abdomen did not reveal aneurysm in thoracic and abdominal aorta. As the size of aneurysm was large and there was risk of rupture, surgical intervention in the form of aneurysmorrhaphy was done. Open surgery was done as the anatomy was not favourable for endovascular intervention. Aneurysmorrhapy was done using 6mm ringed Poly Tetra Fluoro Ethylene graft. Patient recovered well and was discharged after 10 days.

16.
Lung India ; 31(3): 267-9, 2014 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-25125816

RESUMEN

Two patients presented to us with very similar clinical and radiological presentation of huge hydatid cysts in the lung and liver. The first patient was an 11-year-old female child and the second one was a 9-year-old male child. The clinical features in both were breathlessness on exertion, pain abdomen, and abdominal distension. Chest Roentgenogram along with computed tomogram of the chest and abdomen revealed presence of thin-walled homogenous large cysts, one in the right lung and two in the liver, in both the cases. Although the liver cysts were of larger size and occupying most of the right lobe of the liver and part of the left lobe, liver function tests were normal. All three cysts were enucleated in the same sitting by a combined thoracic and abdominal approach (thoracotomy followed by laparotomy). After enucleation of the cyst, capitonnage of the cavity in the lung was done and the liver cavities were filled with omentum to prevent collection of fluid and abscess formation. Both patients recovered well, although the second patient required abdominal drain for a long period of 1 month for bile leakage which decreased gradually and eventually stopped.

17.
Indian J Ophthalmol ; 62(5): 538-44, 2014 May.
Artículo en Inglés | MEDLINE | ID: mdl-24881597

RESUMEN

This review focuses on saccadic eye movement research in Parkinson's disease (PD) patients. Results from various studies related to Parkinson disease and saccades have been discussed in terms of various saccadic parameters like latency, amplitude, velocity and gain. Neural circuitry of saccadic eye movements and cognitive processes and it's relation with altered saccadic performance in Parkinson disease has been discussed here. This article also covers various research paradigms commonly used to study saccades. Effects of medication on saccadic parameters in PD patients have also been discussed along with the effects of deep brain stimulation of subthalamic nucleus on saccadic performance in PD patients. Literature review was done using online Pubmed search engine and National Medical Library.


Asunto(s)
Enfermedad de Parkinson/fisiopatología , Movimientos Sacádicos/fisiología , Humanos , Núcleo Subtalámico/fisiopatología
18.
Indian J Otolaryngol Head Neck Surg ; 65(Suppl 3): 645-9, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-24427730

RESUMEN

There has been a manifold increase in the number of mobile phone users throughout the world with the current number of users exceeding 2 billion. However this advancement in technology like many others is accompanied by a progressive increase in the frequency and intensity of electromagnetic waves without consideration of the health consequences. The aim of our study was to advance our understanding of the potential adverse effects of GSM mobile phones on auditory brainstem responses (ABRs). 60 subjects were selected for the study and divided into three groups of 20 each based on their usage of mobile phones. Their ABRs were recorded and analysed for latency of waves I-V as well as interpeak latencies I-III, I-V and III-V (in ms). Results revealed no significant difference in the ABR parameters between group A (control group) and group B (subjects using mobile phones for maximum 30 min/day for 5 years). However the latency of waves was significantly prolonged in group C (subjects using mobile phones for 10 years for a maximum of 30 min/day) as compared to the control group. Based on our findings we concluded that long term exposure to mobile phones may affect conduction in the peripheral portion of the auditory pathway. However more research needs to be done to study the long term effects of mobile phones particularly of newer technologies like smart phones and 3G.

20.
Parkinsonism Relat Disord ; 16(4): 256-60, 2010 May.
Artículo en Inglés | MEDLINE | ID: mdl-20116324

RESUMEN

OBJECTIVE: The analysis of long-latency event-related potentials (ERPs) is an important approach in the evaluation of certain cognitive functions, particularly selective attention, and in following their subsequent changes. Auditory P300 has previously been reported to be abnormal in patients with Parkinson's disease (PD). The aim of this study was to investigate whether acute deep brain stimulation (DBS) of the subthalamic nucleus (STN) itself can cause changes in the configuration of ERPs. METHOD: Using a standard auditory oddball paradigm, we elicited ERPs in 10 patients with PD (in both DBS-ON and DBS-OFF conditions). The patients acted as their own controls. The N100, P200, N200 and P300 latencies, amplitudes and areas were compared between DBS-ON and DBS-OFF states. The motor reaction times were also recorded and compared between the two states. RESULTS: Comparison of the DBS-ON and DBS-OFF states revealed that neither amplitudes nor areas of the ERP components changed significantly; however, significant changes were observed in the latency of N100 potential when the target stimulus was applied, although there was no significant change in the latency of the P300 potential. No significant changes were noted in the latencies of the other observed ERP components. There was a marked improvement in the reaction time after the DBS electrode was turned ON. CONCLUSION: Our data indicate that DBS might have varied impacts on electrophysiological parameters during the auditory oddball paradigm. Moreover, it may also worsen the orientation response as reflected by the increase in the N100 latency after the DBS electrode is turned ON.


Asunto(s)
Estimulación Encefálica Profunda/efectos adversos , Potenciales Evocados Auditivos/fisiología , Enfermedad de Parkinson/cirugía , Núcleo Subtalámico/cirugía , Potenciales Relacionados con Evento P300/fisiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Tiempo de Reacción , Núcleo Subtalámico/fisiología
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