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Childhood TB

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https://www.readbyqxmd.com/read/28166728/why-being-an-expert-despite-xpert-remains-crucial-for-children-in-high-tb-burden-settings
#1
Jason M Bacha, Katherine Ngo, Petra Clowes, Heather R Draper, Elias N Ntinginya, Andrew DiNardo, Chacha Mangu, Issa Sabi, Bariki Mtafya, Anna M Mandalakas
BACKGROUND: As access to Xpert expands in high TB-burden settings, its performance against clinically diagnosed TB as a reference standard provides important insight as the majority of childhood TB is bacteriologically unconfirmed. We aim to describe the characteristics and outcomes of children with presumptive TB and TB disease, and assess performance of Xpert under programmatic conditions against a clinical diagnosis of TB as a reference standard. METHODS: Retrospective review of children evaluated for presumptive TB in Mbeya, Tanzania...
February 6, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28129755/improving-case-detection-of-tuberculosis-among-children-in-bangladesh-lessons-learned-through-an-implementation-research
#2
Ziaul Islam, Kazi Istiaque Sanin, Tahmeed Ahmed
BACKGROUND: According to the Bangladesh National Tuberculosis Control Program (NTP), the proportion of childhood tuberculosis (TB) among all reported cases is only 3%. This is considerably lower compared to other high-burden countries. One of our previous studies identified substantial gaps at the primary care level related to capacity of service providers, supply of required logistics and community awareness about childhood TB. Therefore, we conducted an implementation study with the objectives to address those gaps...
January 28, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28107473/butimba-intensifying-the-hunt-for-child-tb-in-swaziland-through-household-contact-tracing
#3
Anna Maria Mandalakas, Katherine Ngo, Pilar Alonso Ustero, Rachel Golin, Florence Anabwani, Bulisile Mzileni, Welile Sikhondze, Robert Stevens
BACKGROUND: Limited data exists to inform contact tracing guidelines in children and HIV-affected populations. We evaluated the yield and additionality of household contact and source case investigations in Swaziland, a TB/HIV high-burden setting, while prioritizing identification of childhood TB. METHODS: In partnership with 7 local TB clinics, we implemented standardized contact tracing of index cases (IC) receiving TB treatment. Prioritizing child contacts and HIV-affected households, screening officers screened contacts for TB symptoms and to identify risk factors associated with TB...
2017: PloS One
https://www.readbyqxmd.com/read/28043630/effective-testing-for-pulmonary-tuberculosis-using-xpert-mtb-rif-assay-for-stool-specimens-in-immunocompetent-pakistani-children
#4
Zahra Hasan, Fehmina Arif, Sadia Shakoor, Aisha Mehnaz, Alnoor Akber, Akbar Kanji, Mussarat Ashraf, Rumina Hasan
OBJECTIVE/BACKGROUND: Childhood tuberculosis (TB) is largely a paucibacillary disease and difficult to diagnose. It is difficult to obtain a sputum or gastric aspirate (GA) sample, and patients are often undiagnosed and treated empirically. Stool is a noninvasive specimen not usually used for TB testing in Pakistan. We investigated the value of Xpert MTB/RIF to diagnose Mycobacterium tuberculosis (MTB) in children with pulmonary TB cases, by performing comparative testing of GA and stool samples...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043600/benefits-and-challenges-of-molecular-diagnostics-for-childhood-tuberculosis
#5
Cristina Gutierrez
Expanding tuberculosis (TB)-diagnostic services, including access to rapid tests, is a World Health Organization (WHO) strategy to accelerate progress toward ending TB. Faster and more sensitive molecular tests capable of diagnosing TB and drug-resistant TB have the technical capacity to address limitations associated with smears and cultures by increasing accuracy and shortening turnaround times as compared with those of these conventional laboratory methods. Nucleic acid amplification assays used to detect and analyze Mycobacterium tuberculosis (MTB)-complex nucleic acids can be used directly on specimens from patients suspected of having TB...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043529/relation-between-smear-positivity-and-imaging-findings-in-children-with-pulmonary-tuberculosis
#6
Maryam Hassanzad, Mohammad Reza Bolursaz, Payam Mehrian, Farahnaz Aghahosseini, Ali Akbar Velayati
OBJECTIVE/BACKGROUND: We investigated the relationship between high-resolution computed tomography (HRCT) imaging manifestation of tuberculosis (TB) in childhood and the results of sputum smear. The aim of this study was to identify an alternative indicator of infectivity to prevent disease transmission through special isolation methods in children who have a clinical condition that suggests TB. METHODS: This retrospective comparative study was performed on 95 children under the age of 15years with a diagnosis of TB based on World Health Organization criteria and laboratory data (smear and culture positive for Mycobacterium tuberculosis)...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043528/childhood-tuberculosis-in-qatar
#7
Jay P N Singh, Reem Mohammed, Thanveer Thayyullathil, Abdullatif Al-Khal, Zubaida Al-Suwaidi
Childhood tuberculosis (TB) has been long neglected but has gained attention in recent years. In 2012, the World Health Organization annual report included an estimate for childhood TB for the first time, and in the following year, the TB Alliance received a grant from UNITAID (International Drug Purchase Facility) to develop pediatric TB formulations. Qatar is a low-incidence country. In this observational study, laboratory-confirmed cases of TB were analyzed from 2013 to 2015 and included patients aged ⩽14years...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28003956/global-burden-of-childhood-tuberculosis
#8
Helen E Jenkins
In 2015, the World Health Organization (WHO) declared tuberculosis (TB) to be responsible for more deaths than any other single infectious disease. The burden of TB among children has frequently been dismissed as relatively low with resulting deaths contributing very little to global under-five all-cause mortality, although without rigorous estimates of these statistics, the burden of childhood TB was, in reality, unknown. Recent work in the area has resulted in a WHO estimate of 1 million new cases of childhood TB in 2014 resulting in 136,000 deaths...
2016: Pneumonia
https://www.readbyqxmd.com/read/28003904/a-case-of-deep-vein-thrombosis-and-intracranial-sinus-thrombosis-possible-rare-complications-of-childhood-abdominal-tuberculosis
#9
Geeta Gathwala, Poonam Dalal, Virender Gehlawat, Jasbir Singh, Vandana Arya
Severe pulmonary tuberculosis (TB) complicated by deep vein thrombosis (DVT) in adults has been reported previously in the medical literature; however, childhood extrapulmonary TB complicated by DVT is rare. We report a 13-year-old girl who presented to the Department of Pediatrics at the Postgraduate Institute of Medical Sciences in Rohtak, India, in 2012 with abdominal TB complicated by DVT and intracranial sinus thrombosis. She was treated with a course of four antitubercular drugs and short-term anticoagulation therapy with a positive outcome over the next six months...
November 2016: Sultan Qaboos University Medical Journal
https://www.readbyqxmd.com/read/27931215/why-the-convention-on-the-rights-of-the-child-must-become-a-guiding-framework-for-the-realization-of-the-rights-of-children-affected-by-tuberculosis
#10
Robindra Basu Roy, Nicola Brandt, Nicolette Moodie, Mitra Motlagh, Kumanan Rasanathan, James A Seddon, Anne K Detjen, Beate Kampmann
BACKGROUND: Until recently, paediatric tuberculosis (TB) has been relatively neglected by the broader TB and the maternal and child health communities. Human rights-based approaches to children affected by TB could be powerful; however, awareness and application of such strategies is not widespread. DISCUSSION: We summarize the current challenges faced by children affected by TB, including: consideration of their family context; the limitations of preventive, diagnostic and treatment options; paucity of paediatric-specific research; failure in implementation of interventions; and stigma...
December 8, 2016: BMC International Health and Human Rights
https://www.readbyqxmd.com/read/27865396/mycobacterium-smegmatis-proteoliposome-induce-protection-in-a-murine-progressive-pulmonary-tuberculosis-model
#11
Yanely Tirado, Alina Puig, Nadine Alvarez, Reinier Borrero, Alicia Aguilar, Frank Camacho, Fatima Reyes, Sonsire Fernandez, Jose Luis Perez, Reynaldo Acevedo, Dulce Mata Espinoza, Jorge Alberto Barrios Payan, Maria de Los A Garcia, Ramlah Kadir, María E Sarmiento, Rogelio Hernandez-Pando, Mohd-Nor Norazmi, Armando Acosta
Tuberculosis (TB) remains an important cause of mortality and morbidity. The TB vaccine, BCG, is not fully protective against the adult form of the disease and is unable to prevent its transmission although it is still useful against severe childhood TB. Hence, the search for new vaccines is of great interest. In a previous study, we have shown that proteoliposomes obtained from Mycobacterium smegmatis (PLMs) induced cross reactive humoral and cellular response against Mycobacterium tuberculosis (Mtb) antigens...
December 2016: Tuberculosis
https://www.readbyqxmd.com/read/27865389/mycobacterium-indicus-pranii-as-a-booster-vaccine-enhances-bcg-induced-immunity-and-confers-higher-protection-in-animal-models-of-tuberculosis
#12
Mohd Saqib, Rahul Khatri, Bindu Singh, Ananya Gupta, Arvind Kumar, Sangeeta Bhaskar
BCG, the only approved vaccine protects against severe form of childhood tuberculosis but its protective efficacy wanes in adolescence. BCG has reduced the incidence of infant TB considerably in endemic areas; therefore prime-boost strategy is the most realistic measure for control of tuberculosis in near future. Mycobacterium indicus pranii (MIP) shares significant antigenic repertoire with Mtb and BCG and has been shown to impart significant protection in animal models of tuberculosis. In this study, MIP was given as a booster to BCG vaccine which enhanced the BCG mediated immune response, resulting in higher protection...
December 2016: Tuberculosis
https://www.readbyqxmd.com/read/27753763/pediatric-extrapulmonary-tuberculosis-clinical-spectrum-risk-factors-and-diagnostic-challenges-in-a-low-prevalence-region
#13
Begoña Santiago-García, Daniel Blázquez-Gamero, Fernando Baquero-Artigao, Jesús Ruíz-Contreras, Jose M Bellón, Maria A Muñoz-Fernández, María J Mellado-Peña
BACKGROUND: Children are at higher risk of tuberculosis (TB) dissemination and extrapulmonary disease, contributing greatly to TB-associated morbidity and long-term sequelae. However, there are very few studies that assess the impact and clinical spectrum of pediatric extrapulmonary TB (EPTB) in low-prevalence regions. METHODS: Children <18 years of age diagnosed with TB in Madrid region (2005-2013) were reviewed. We compared the epidemiology, clinical characteristics and the performance of diagnostic tests in childhood extrapulmonary and pulmonary disease...
November 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27740736/paediatric-tuberculosis-cases-increased-in-stockholm-from-1971-to-2015-following-the-rising-number-of-children-with-immigrant-backgrounds
#14
Rutger Bennet, Margareta Eriksson
AIM: This study described the epidemiology and clinical features of childhood tuberculosis (TB) in Stockholm over a 45-year period, when there was a resurge of tuberculosis concomitant with increased immigration. METHODS: We describe 220 children up to the age of 16 years with active TB, seen at the Astrid Lindgren Children's Hospital from 1971 to 2015. The study period was divided into three 15-year periods. RESULTS: Cases increased from ten children in 1971-1985 to 76 in 1986-2000 and 134 in 2001-2015, with overall incidence increasing from <1 to four per 100 000...
December 2016: Acta Paediatrica
https://www.readbyqxmd.com/read/27725040/imci-indicators-of-childhood-tbm-at-primary-health-care-level-in-the-western-cape-province-of-south-africa
#15
R Solomons, M Grantham, B J Marais, R van Toorn
BACKGROUND: The diagnosis of tuberculous meningitis (TBM) in children is often delayed, with disastrous consequences. The Integrated Management of Childhood Illness (IMCI) strategy aims to ensure the accurate assessment of ill children using simple yet reliable clinical signs. METHODS: We conducted a retrospective observational study of 30 consecutive children aged 3 months to 5 years diagnosed with TBM at Tygerberg Hospital, Cape Town, South Africa. Clinical records were reviewed to assess diagnostic delay and identify IMCI indicators that were present at the time of initial presentation...
October 2016: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/27716523/layer-by-layer-nanocoating-of-live-bacille-calmette-gu%C3%A3-rin-mycobacteria-with-poly-i-c-and-chitosan-enhances-pro-inflammatory-activation-and-bactericidal-capacity-in-murine-macrophages
#16
Martin Tobias Speth, Urska Repnik, Gareth Griffiths
Tuberculosis (TB) is a major disease burden globally causing more than 1.5 million deaths per year. The attenuated live vaccine strain Bacille Calmette-Guérin (BCG), although providing protection against childhood TB, is largely ineffective against adult pulmonary TB. A major aim therefore is to increase the potency of the BCG vaccine to generate stronger and more sustained immunity against TB. Here, we investigated the use of layer-by-layer (LbL) nanocoating of the surface of live BCG with several layers of polyinosinic-polycytidylic acid (poly(I:C)), a strong inducer of cell-mediated immunity, and the biodegradable polysaccharide chitosan to enhance BCG immunogenicity...
December 2016: Biomaterials
https://www.readbyqxmd.com/read/27704508/childhood-tuberculosis-a-descriptive-study-in-a-pneumo-pediatrics-department-in-tunisia
#17
Houda Snène, Anissa Berraies, Besma Hamdi, Jamel Ammar, Hanadi Ouali, Agnes Hamzaoui
Objective to assess the different localizations of tuberculosis (TB) in children in a pneumopediatric department in Tunisia and to describe its diagnosis tools since clinical investigations of childhood TB are challenged by the paucibacillary nature of the disease and the difficulties in obtaining specimens. Methods Forty-six cases of TB in children were studied between 2008 and 2013. Clinical history, examination and chest radiography were reported. Several investigations have been conducted to confirm the diagnosis of TB such as: tuberculin skin test (TST), bacteriological and histological investigations...
April 2016: La Tunisie Médicale
https://www.readbyqxmd.com/read/27694091/tuberculosis-in-children-in-togo-epidemiology-diagnosis-treatment-and-outcome
#18
K A R Segbedji, K E Djadou, O-B Tchagbele, M Kpegouni, L K Bessi Kama, K D Azoumah, A D Agbèrè
INTRODUCTION: Tuberculosis (TB) remains one of the most lethal communicable diseases in the world, according to the World Health Organization (WHO). New strategies must be implemented to meet targets for 2035. OBJECTIVE: Describe the epidemiological and therapeutic aspects of tuberculosis in children in Togo. MATERIALS AND METHODS: This retrospective, multicenter, descriptive cross-sectional study examined the files of children younger than 15 years who were diagnosed with TB and treatment in the Maritime region from 2008 to 2011...
August 1, 2016: Médecine et Santé Tropicales
https://www.readbyqxmd.com/read/27685837/cd163-levels-pro-and-anti-inflammatory-cytokine-secretion-of-monocytes-in-children-with-pulmonary-tuberculosis
#19
Esin Aktas Cetin, Leyla Pur Ozyigit, Yusuf Metin Gelmez, Erkan Cakir, Ahmet Hakan Gedik, Gunnur Deniz
OBJECTIVES: Childhood tuberculosis (TB) comprises an important part of the world's TB burden. Monocytes set up the early phase of infection because of innate immune responses. Understanding the changes in monocyte subsets during multisystem infectious diseases may be important for the development of novel diagnostic and therapeutic strategies. The aim of this study was to evaluate the monocyte phenotype together with the cytokine secretion profiles of children with pulmonary tuberculosis...
September 29, 2016: Pediatric Pulmonology
https://www.readbyqxmd.com/read/27651243/radiological-patterns-of-childhood-thoracic-tuberculosis-in-a-developed-country-a-single-institution-s-experience-on-217-255-cases
#20
Paolo Tomà, Laura Lancella, Laura Menchini, Roberta Lombardi, Aurelio Secinaro, Alberto Villani
The incidence of tuberculosis is increasing in the developed world and children in particular represent a high-risk group for developing the disease. The aim of this review is to analyse the spectrum of radiological signs as reported in the recent literature, in light of our series over a 15-year period, to pinpoint the most common radiological patterns in a developed country and to determine the role played by the different chest imaging techniques in diagnosis improvement. Lung TB was present in 217 out of 255 patients (85 %): 146 patients were under 5 years of age (76 under 2 years) and 71 over 5 years (41 over 10 years)...
January 2017: La Radiologia Medica
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