Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Devender Bhalla is active.

Publication


Featured researches published by Devender Bhalla.


PLOS Neglected Tropical Diseases | 2012

Toxoplasmosis and Epilepsy — Systematic Review and Meta Analysis

Edgard Brice Ngoungou; Devender Bhalla; Amandine Nzoghe; Marie-Laure Dardé; Pierre-Marie Preux

Background Toxoplasmosis is an important, widespread, parasitic infection caused by Toxoplasma gondii. The chronic infection in immunocompetent patients, usually considered as asymptomatic, is now suspected to be a risk factor for various neurological disorders, including epilepsy. We aimed to conduct a systematic review and meta-analysis of the available literature to estimate the risk of epilepsy due to toxoplasmosis. Methods A systematic literature search was conducted of several databases and journals to identify studies published in English or French, without date restriction, which looked at toxoplasmosis (as exposure) and epilepsy (as disease) and met certain other inclusion criteria. The search was based on keywords and suitable combinations in English and French. Fixed and random effects models were used to determine odds ratios, and statistical significance was set at 5.0%. Principal findings Six studies were identified, with an estimated total of 2888 subjects, of whom 1280 had epilepsy (477 positive for toxoplasmosis) and 1608 did not (503 positive for toxoplasmosis). The common odds ratio (calculated) by random effects model was 2.25 (95% CI 1.27–3.9), p = 0.005. Conclusions Despite the limited number of studies, and a lack of high-quality data, toxoplasmosis should continue to be regarded as an epilepsy risk factor. More and better studies are needed to determine the real impact of this parasite on the occurrence of epilepsy.


Epilepsia | 2014

Epilepsy: Asia versus Africa.

Devender Bhalla; Achille Edem Tchalla; Benoît Marin; Edgard Brice Ngoungou; Chong Tin Tan; Pierre-Marie Preux

Is epilepsy truly an “African ailment”? We aimed to determine this, since international health agencies often refer to epilepsy as an African disease and the scientific literature has spoken the same tone. Various published materials, mainly reports, articles, were used to gather Asian and African evidence on various aspects of epilepsy and many of its risk and associated factors. Our results suggest that in no way can epilepsy be considered as an African ailment and such characterization is most likely based on popular beliefs rather than scientific evidence. In comparison to Africa, Asia has a 5.0% greater burden from all diseases, and is 17.0% more affected from neuropsychiatric disorders (that include epilepsy). Given that more countries in Asia are transitioning, there may be large demographic and lifestyle changes in the near future. However these changes are nowhere close to those expected in Africa. Moreover, 23 million Asians have epilepsy in comparison to 3.3 million Africans and 1.2 million sub‐Saharan Africans. In comparison to Africa, Asia has more untreated patients, 55.0% more additional epilepsy cases every year, because of its larger population, with greater treatment cost and possibly higher premature mortality. Of several associated factors discussed herein, many have more importance for Asia than Africa. The current state of epilepsy in Asia is far less than ideal and there is an urgent need to recognize and accept the importance of epilepsy in Asia. In no way can epilepsy be considered as an African ailment. This is most likely based on popular beliefs rather than scientific evidence.


Seizure-european Journal of Epilepsy | 2016

A comprehensive review of epilepsy in the Arab world.

Devender Bhalla; Elham Lotfalinezhad; Utsav Timalsina; Saloni Kapoor; Kailash Suresh Kumar; Abdallah Abdelrahman; Brenda Giagante; Manjari Tripathi; Kavita Srivastava; Irmansyah Irmansyah

PURPOSE We conducted a comprehensive review of the epidemiology of epilepsy in the Arab world. METHODS Epidemiological literature about epilepsy from 22 countries of the Arab League was searched in French and English using several keywords (specific and wider) and combinations, individually for each country. The search was conducted on Google first and then on PubMed. The results are presented as counts, proportions, and medians along with 95% confidence intervals (CI). Unpaired t-test with unequal variance and regressions were performed, altogether and individually, for lifetime and active epilepsy prevalence as well as incidence. RESULTS Google provided 21 prevalence, four camp and nine incidence estimates while PubMed provided ten such estimates; none of them was identified by Google. No epidemiological data about epilepsy was found from 10/22 countries. Excluding pediatric studies, 13 prevalence estimates from six countries were identified. Including pediatric studies, 21 estimates from nine countries were found. Median lifetime and active epilepsy prevalence were 7.5/1000 (95% CI 2.6-12.3, range 1.9-12.9) and 4.4/1000 (95% CI 2.1-9.3, range 2.1-9.3), respectively, excluding pediatric studies (1984-2014, N=244081). Median incidence was 56.0/100,000 (n=9, N=122484, 95% CI 13.7-147.9, range 10.4-190). CONCLUSION The fact that no epidemiological data about epilepsy is available in the public domain for almost one half of all Arab countries offers opportunities for future research. This thorough review of existing literature demonstrates a prevalence of epilepsy three times higher than previously reported for this region. The median incidence is similar to other regions of the world, e.g. North America. Google yielded additional valuable sources not indexed in PubMed and provided pertinent references more quickly.


Epilepsia | 2015

Undue regulatory control on phenobarbital : an important yet overlooked reason for the epilepsy treatment gap

Devender Bhalla; Hasan Aziz; Donna Bergen; Gretchen L. Birbeck; Arturo Carpio; Esper A. Cavalheiro; Phetvongsinh Chivorakoun; J. Helen Cross; Dismand Houinato; Charles R. Newton; Peter Odermatt; Sangeeta Ravat; Erich Schmutzhard; Pierre-Marie Preux

Epilepsy is a major chronic noncommunicable neurologic disorder. Although a simple, safe, efficacious, and low-cost treatment has been available for nearly 100 years, the treatment gap remains disturbingly high in many low- and middle-income countries (LMICs).[1] Treatment gap is generally defined as a “difference between the number of people with active epilepsy and the number being appropriately treated.” There are many reasons for this treatment gap; one important reason is an overly restrictive regulation on barbiturates such as phenobarbital (PB). These restrictive regulations deserve a wider and open discussion, even though epileptologists and others are intensely engaged on reducing the epilepsy treatment gap. With this article, we provide our viewpoint with an aim of raising an extremely important issue: undue regulatory restriction on phenobarbital, an essential lifesaving antiepileptic drug (AED).


PLOS ONE | 2013

Epilepsy in Cambodia–Treatment Aspects and Policy Implications: A Population-Based Representative Survey

Devender Bhalla; Kimly Chea; Chamroeun Hun; Vichea Chan; Pierre Huc; Samleng Chan; Robert Sebbag; Daniel Gérard; Michel Dumas; Sophal Oum; Michel Druet-Cabanac; Pierre-Marie Preux

Introduction We tested two treatment strategies to determine: treatment (a) prognosis (seizure frequency, mortality, suicide, and complications), (b) safety and adherence of treatment, (c) self-reported satisfaction with treatment and self-reported productivity, and policy aspects (a) number of required tablets for universal treatment (NRT), (b) cost of management, (c) manpower-gap and requirements for scaling-up of epilepsy care. Methods We performed a random-cluster survey (N = 16510) and identified 96 cases (≥1 year of age) in 24 villages. They were screened by using a validated instrument and diagnosed by the neurologists. International guidelines were used for defining and classifying epilepsy. All were given phenobarbital or valproate (cost-free) in two manners patient’s door-steps (March 2009-March 2010, primary-treatment-period, PTP) and treatment through health-centers (March 2010-June 2011, treatment-continuation-period, TCP). The emphasis was to start on a minimum dosage and regime, without any polytherapy, according to the age of the recipients. No titration was done. Seizure-frequency was monthly and self-reported. Results The number of seizures reduced from 12.6 (pre-treatment) to 1.2 (end of PTP), following which there was an increase to 3.4 (end of TCP). Between start of PTP and end of TCP, >60.0% became and remained seizure-free. During TCP, ∼26.0% went to health centers to collect their treatment. Complications reduced from 12.5% to 4.2% between start and end of PTP and increased to 17.2% between start and end of TCP. Adverse events reduced from 46.8% to 16.6% between start and end of PTP. Nearly 33 million phenobarbital 100 mg tablets are needed in Cambodia. Conclusions Epilepsy responded sufficiently well to the conventional treatment, even when taken at a minimal dosage and a simple daily regimen, without any polytherapy. This is yet another confirmation that it is possible to substantially reduce direct burden of epilepsy through means that are currently available to us.


Neuroepidemiology | 2013

Epilepsy in Asia: A Cambodian Experience

Devender Bhalla; Chan Samleng; Daniel Gérard; Sophal Oum; Michel Druet-Cabanac; Pierre-Marie Preux

Epilepsy is particularly challenging for resource-poor countries and in turn for Asia which is likely to have greater challenges in terms of treatment cost and deficit, premature mortality, health transitions, population and poverty size, etc. Here we present an example of working in one of the resource-poor ‘least-talked-about’ populations to demonstrate that finding financial means and achieving cross-country cooperation over a long period of time is possible even in countries with currently limited resources. Conducting such cooperation could be a model for other initiatives. Scientific, capacity-building, and political tools should be employed to generate local representative data and influence government policies. These measures can be of immediate benefit for patients in these countries.


Epilepsia | 2013

Comprehensive evaluation of the psychosocial parameters of epilepsy: A representative population-based study in Prey Veng (Cambodia)

Devender Bhalla; Kimly Chea; Hun Chamroeun; Chan Vichea; Pierre Huc; Chan Samleng; Robert Sebbag; Daniel Gérard; Michel Dumas; Sophal Oum; Michel Druet-Cabanac; Pierre-Marie Preux

We conducted a population‐based study of epilepsy in Prey Veng (Cambodia) to explore self‐esteem, fear, discrimination, knowledge–attitude–practice (KAP), social‐support, stigma, coping strategies, seizure‐provoking factors, and patient‐derived factors associated with quality of life (QOL).


Seizure-european Journal of Epilepsy | 2014

First-ever population-based study on status epilepticus in French Island of La Reunion (France) - Incidence and fatality

Devender Bhalla; Achille Edem Tchalla; Claude Mignard; B. Marin; Didier Mignard; Pierre Jallon; Pierre-Marie Preux

PURPOSE We aimed to determine the incidence and case-fatality of first-ever status epilepticus (SE) among the general population living in La Reunion Island, a French overseas territory in the Indian Ocean near Madagascar. METHODS We recruited cases (1st July 2004-30th June 2005) in a population-based manner using neurology, neurosurgery, electroencephalogram, emergency, paediatric and neuroradiology services; emergency medical aid service; emergency and admission service of private and public clinics; neurologists (public and private); private paediatricians and practitioners of various rural hospitals. All cases had an electroencephalogram (EEG) and were assessed by an epileptologist. Standard definition and classification schemes were used. Those with known epilepsy were not part of this analysis. RESULTS Sixty-five cases (males: n=41, 63.1%) had epileptologist-confirmed SE, with 38.5% (n=25) being >60 years of age. Global incidence rate was 8.52/100 000 (95% confidence interval 6.5-10.5). A bimodal age distribution with high frequency and incidence among young (<10 years age) (frequency: 12.3%; incidence 6.6/100,000) and aged (>60 years) (frequency: 40.0%; incidence 35.0/100,000) was observed. We found that 60%, 32.3%, 6.7% had convulsive, partial and non-convulsive SE respectively (1% remained unclassified). Of the cases identified, 44.6%, 38.5%, 16.9% had unprovoked, provoked or cryptogenic seizures respectively. The most important aetiological factors identified included: stroke (27.7%), alcoholism/toxicity (18.5%), cryptogenic (16.9%), infections (10.8%). Mortality was 18.5%. CONCLUSION The incidence of SE incidence in La Reunion Island was lower than that described elsewhere. The status type was found to be dependent on aetiology and age. The study confirms that SE is more frequent in men and in older adults and is associated with significant short-term case mortality.


Seizure-european Journal of Epilepsy | 2013

Manpower gap: An important barrier against reduction of the treatment gap of epilepsy

Devender Bhalla; Pierre-Marie Preux

We read with interest of the authors’ experience from Nepal and that they rightly point out the urgent need to bridge the manpower gap in this country. This gap is disturbingly high, not only in Nepal but in most other low-income countries (LICs) and is the most common direct cause of the diagnostic and treatment gaps in the management of epilepsy. The authors are also right to call for the training of people other than neurologists. However, the question which ‘‘other’’ people should be trained is also tricky because it is not just neurologists, but also less specialized doctors, nurses, and midwives who are lacking and who are also unequally distributed. Most LICs have fewer healthcare staff (doctor, nurse, or midwife) than the 2.3/ 1000 recommended as a millennium goal. Thus, there is an inevitable need to find ‘‘newer resources’’ who may serve as service-providers. We are working toward solving this issue of manpower in two Asian countries, namely Cambodia and Laos by working along with the department of access to medicines of Sanofi (France) and other partners. We have engaged primary health center (PHC) staff to provide a trained, home-based, professional epilepsy care. There are several reasons why PHCs and their staff can productively contribute to fulfill service-gaps in LICs. PHCs are the most fundamental part of a country’s healthcare system. Thus, their engagement may directly strengthen a country’s healthcare system as well as ‘‘truly decentralize’’ the distribution of core professional services. It is recently noted that implementing medical care at the primary level is crucial to improve the treatment gap and adherence among PWEs. PHCs are already in place in LICs and working and have staffs employed by the government. Most PHCs are staffed by a low and mid-level workforce and are an equivalent of a medical assistant but already provide variety of health services to the population with minimal expert support. PHC staffs are a ‘‘local resource’’, known to the population, which may help build a closer patient–healer relationship. Unlike other strategies (e.g. organizing regular visits from external experts), engagement of PHC staff may remove long


International Journal of Aging & Human Development | 2017

A Population-Based Survey to Determine Association of Perceived Social Support and Self-Efficacy With Self-Care Among Elderly With Diabetes Mellitus (Kerman City, Iran):

Vahidreza Borhaninejad; Mohsen Shati; Devender Bhalla; Abedin Iranpour; Reza Fadayevatan

This survey examined association between social support and self-efficacy with self-care in elderly with diabetes. A total of 374 subjects were identified in Kerman city, Iran who responded to questionnaires on self-care, social support, and self-efficacy. Data were analyzed by using SPSS. Along with customary descriptive statistics, we also determined group difference for self-care, and Pearson correlation, and prediction value of various variables by using hierarchical multiple regression. And 67.37% of subjects were classified as poor adherence to self-care; 55.9% patients reportedly had good foot care habits, while 68.4% patients were not taking adequate physical activity. There was a significant correlation between self-care with social support and self-efficacy. Independent variables accounted for 44.3% of the variance in self-care. Diabetes care programs should aim to implement (a) weekly free-of-cost mass physical activity programs, (b) mass education adapted for gender- and age-based needs, and (c) informal social cohesion and companionship among general public.

Collaboration


Dive into the Devender Bhalla's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Saloni Kapoor

All India Institute of Medical Sciences

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Kavita Srivastava

Bharati Vidyapeeth University

View shared research outputs
Top Co-Authors

Avatar

Anne B. Newman

University of Pittsburgh

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

David S. Siscovick

New York Academy of Medicine

View shared research outputs
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge