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Zar HJ, Jeena P, Argent A, Gie R, Madhi SA. Diagnosis and management of community—acquired pneumonia in childhood—South African Thoracic Society guidelines. ACTA ACUST UNITED AC 2015. [DOI: 10.1080/10158782.2009.11441336] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Stein DJ, Koen N, Donald KA, Adnams CM, Koopowitz S, Lund C, Marais A, Myers B, Roos A, Sorsdahl K, Stern M, Tomlinson M, van der Westhuizen C, Vythilingum B, Myer L, Barnett W, Brittain K, Zar HJ. Investigating the psychosocial determinants of child health in Africa: The Drakenstein Child Health Study. J Neurosci Methods 2015; 252:27-35. [PMID: 25797842 DOI: 10.1016/j.jneumeth.2015.03.016] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 03/11/2015] [Accepted: 03/12/2015] [Indexed: 01/06/2023]
Abstract
BACKGROUND Early life psychobiological and psychosocial factors play a key role in influencing child health outcomes. Longitudinal studies may help elucidate the relevant risk and resilience profiles, and the underlying mechanisms that impact on child health, but there is a paucity of birth cohort data from low and middle-income countries (LMIC). We describe the rationale for and present baseline findings from the psychosocial component of the Drakenstein Child Health Study (DCHS). METHODS We review the psychosocial measures used in the DCHS, a multidisciplinary birth cohort study in a peri-urban area in South Africa, and provide initial data on psychological distress, depression, substance use, and exposure to traumatic stressors and intimate partner violence (IPV). These and other measures will be assessed longitudinally in mothers in order to investigate associations with child neurodevelopmental and health outcomes. RESULTS Baseline psychosocial data is presented for mothers (n=634) and fathers (n=75) who have completed antenatal assessments to date. The sample of pregnant mothers is characterized by multiple psychosocial risk factors, including a high prevalence of psychological distress and depression, high levels of substance use, and high exposure to traumatic stressors and IPV. DISCUSSION These data are consistent with prior South African studies which have documented a high prevalence of a multitude of risk factors during pregnancy. Further longitudinal assessment of mothers and children may clarify the underlying psychobiological and psychosocial mechanisms which impact on child health, and so inform clinical and public health interventions appropriate to the South African and other LMIC contexts.
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Amlabu V, Mulligan C, Jele N, Evans A, Gray D, Zar HJ, McIlleron H, Smith P. Isoniazid/acetylisoniazid urine concentrations: markers of adherence to isoniazid preventive therapy in children. Int J Tuberc Lung Dis 2015; 18:528-30. [PMID: 24903787 DOI: 10.5588/ijtld.13.0730] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The Arkansas colorimetric method monitors adherence to isoniazid (INH) by the detection of INH metabolites in urine. Urine samples 4 h after INH administration in 31 human immunodeficiency virus infected children receiving daily or thrice weekly INH preventive therapy were Arkansas test-positive for 29/31 (94%), while acetylisoniazid (AcINH) was detected in 30/31 (97%) using mass spectrometry. At 24, 48 and 72 h, only 78%, 23% and 0 samples, respectively, were Arkansas-positive, while INH or AcINH was detected in respectively 94%, 69% and 33%. The Arkansas test reliably predicted INH ingestion at a clinic visit 4 h after morning doses, but did not perform well at 24 h.
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Gray DM, Willemse L, Alberts A, Simpson S, Sly PD, Hall GL, Zar HJ. Lung function in African infants: a pilot study. Pediatr Pulmonol 2015; 50:49-54. [PMID: 24339198 PMCID: PMC4312776 DOI: 10.1002/ppul.22965] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Accepted: 10/14/2013] [Indexed: 11/16/2022]
Abstract
BACKGROUND The burden of childhood respiratory illness is large in low and middle income countries (LMICs). Infant lung function (ILF) testing may provide useful information about lung growth and susceptibility to respiratory disease. However, ILF has not been widely available in LMICs settings where the greatest burden of childhood respiratory disease occurs. AIM To implement and evaluate a pilot study of ILF testing in a semi-rural setting in South Africa. METHOD Infant lung function testing was established at a community hospital in South Africa. All measures were done in unsedated infants during sleep. Measurements, made with the infant quietly breathing through a face mask and bacterial filter, included tidal breathing (TBFVL), exhaled nitric oxide (eNO), and sulphur hexafluoride multiple breath washout (MBW) measures using an ultrasonic flow meter and chemoluminescent NO analyzer. RESULTS Twenty infants, mean age of 7.7 (SD 2.9) weeks were tested; 8 (40%) were Black African and 12 (60%) were mixed race. Five (25%) infants were preterm. There were 19 (95%) successful TBFVL and NO tests and 18 (90%) successful MBW tests. The mean tidal volume was 30.5 ml (SD 5.9), respiratory rate 50.2 breaths per minute (SD 8.7), and eNO 10.4 ppb (SD 7.3). The mean MBW measures were: functional residual capacity 71 ml (SD 13) and the lung clearance index 7.6 (SD 0.5). The intra-subject coefficient of variations (CV) of lung function measures were similar to published normative data for Caucasian European infants. CONCLUSION In this study we demonstrate that unsedated infant lung function measures of tidal breathing, MBW, and eNO are feasible in a semi-rural African setting with rates comparable to those reported from high income countries.
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Held M, Laubscher M, Zar HJ, Dunn RN. GeneXpert polymerase chain reaction for spinal tuberculosis: an accurate and rapid diagnostic test. Bone Joint J 2014; 96-B:1366-9. [PMID: 25274923 DOI: 10.1302/0301-620x.96b10.34048] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The lack of an accurate, rapid diagnostic test for mycobacterium tuberculosis (TB) is a major handicap in the management of spinal TB. GeneXpert, a new, rapid molecular diagnostic test is recommended as the first line investigation for suspected pulmonary TB in areas with a high prevalence of HIV or drug resistance, yet it has not been validated for the diagnosis of musculoskeletal TB. The aim of this study was to assess the accuracy of GeneXpert in diagnosing spinal TB. A prospective clinical study of 69 consecutive adults with suspected spinal TB was conducted at a tertiary hospital in an area with the highest incidence and prevalence of TB in the world. GeneXpert was used on tissue samples of the enrolled patients and its diagnostic accuracy compared with a reference standard of tissue in liquid culture. A total of 71 spine samples from 69 patients (two re-biopsies) were included in the study. The GeneXpert test showed a sensitivity of 95.6% and specificity of 96.2% for spinal TB. The results of the GeneXpert test were available within 48 hours compared with a median of 35 days (IQR 15 to 43) for cultures. All cases of multi-drug resistant TB (MDR TB) were diagnosed accurately with the GeneXpert test. The MDR TB rate was 5.8%.
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Zar HJ, Barnett W, Myer L, Stein DJ, Nicol MP. Investigating the early-life determinants of illness in Africa: the Drakenstein Child Health Study. Thorax 2014; 70:592-4. [PMID: 25228292 PMCID: PMC5107608 DOI: 10.1136/thoraxjnl-2014-206242] [Citation(s) in RCA: 134] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 08/30/2014] [Indexed: 12/04/2022]
Abstract
Respiratory disease is the predominant cause of illness in children globally. We describe a unique multidisciplinary South African birth cohort, the Drakenstein Child Health Study (DCHS), to investigate the incidence, risk factors, aetiology and long-term impact of early lower respiratory tract infection (LRTI) on child health. Pregnant women from a poor, peri-urban community with high exposure to infectious diseases and environmental risk factors are enrolled with 1000 mother–child pairs followed for at least 5 years. Biomedical, environmental, psychosocial and demographic risk factors are longitudinally measured. Environmental exposures are measured using monitors placed at home visits. Lung function is measured in children at 6 weeks, annually and during LRTI episodes. Microbiological investigations including microbiome and multiplex PCR measures are done longitudinally and at LRTI episodes. The DCHS is a unique African birth cohort study that uses sophisticated measures to comprehensively investigate the early-life determinants of child health in an impoverished area of the world.
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Planting NS, Visser GL, Nicol MP, Workman L, Isaacs W, Zar HJ. Safety and efficacy of induced sputum in young children hospitalised with suspected pulmonary tuberculosis. Int J Tuberc Lung Dis 2014; 18:8-12. [PMID: 24365546 DOI: 10.5588/ijtld.13.0132] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Induced sputum (IS) is increasingly used to provide specimens for microbiological confirmation of Mycobacterium tuberculosis. The aim of this study was to investigate the safety of and yield from IS in children hospitalised with suspected pulmonary tuberculosis (PTB). METHODS In a prospective study of children hospitalised with suspected PTB in Cape Town, South Africa, between February 2009 and February 2012, two IS specimens were obtained on consecutive days or at intervals of at least 4 hours. Specimens were investigated for M. tuberculosis using concentrated fluorescent acid-fast smear, liquid culture and GeneXpert(®) MTB/RIF. The safety of IS was assessed by recording clinical signs and symptoms before and for 30 min after sputum induction. RESULTS Among 843 children enrolled, at least one IS was performed for 823 (97.6%). The safety of sputum induction was recorded for 690 children (median age 27.3 months [IQR 13.4-64.2]), representing a total of 1270 IS procedures. Of these, 129 (18.7%) had at least one sputum culture positive for M. tuberculosis. Side effects were epistaxis (249, 19.4%) or wheezing (14, 1.1%). The median drop in oxygen saturation during the IS procedure was 1%. CONCLUSION Sputum induction is a safe and useful method for the microbiological confirmation of tuberculosis (TB) in young children.
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Bousquet J, Addis A, Adcock I, Agache I, Agusti A, Alonso A, Annesi-Maesano I, Anto JM, Bachert C, Baena-Cagnani CE, Bai C, Baigenzhin A, Barbara C, Barnes PJ, Bateman ED, Beck L, Bedbrook A, Bel EH, Benezet O, Bennoor KS, Benson M, Bernabeu-Wittel M, Bewick M, Bindslev-Jensen C, Blain H, Blasi F, Bonini M, Bonini S, Boulet LP, Bourdin A, Bourret R, Bousquet PJ, Brightling CE, Briggs A, Brozek J, Buhl R, Bush A, Caimmi D, Calderon M, Calverley P, Camargos PA, Camuzat T, Canonica GW, Carlsen KH, Casale TB, Cazzola M, Cepeda Sarabia AM, Cesario A, Chen YZ, Chkhartishvili E, Chavannes NH, Chiron R, Chuchalin A, Chung KF, Cox L, Crooks G, Crooks MG, Cruz AA, Custovic A, Dahl R, Dahlen SE, De Blay F, Dedeu T, Deleanu D, Demoly P, Devillier P, Didier A, Dinh-Xuan AT, Djukanovic R, Dokic D, Douagui H, Dubakiene R, Eglin S, Elliot F, Emuzyte R, Fabbri L, Fink Wagner A, Fletcher M, Fokkens WJ, Fonseca J, Franco A, Frith P, Furber A, Gaga M, Garcés J, Garcia-Aymerich J, Gamkrelidze A, Gonzales-Diaz S, Gouzi F, Guzmán MA, Haahtela T, Harrison D, Hayot M, Heaney LG, Heinrich J, Hellings PW, Hooper J, Humbert M, Hyland M, Iaccarino G, Jakovenko D, Jardim JR, Jeandel C, Jenkins C, Johnston SL, Jonquet O, Joos G, Jung KS, Kalayci O, Karunanithi S, Keil T, Khaltaev N, Kolek V, Kowalski ML, Kull I, Kuna P, Kvedariene V, Le LT, Lodrup Carlsen KC, Louis R, MacNee W, Mair A, Majer I, Manning P, de Manuel Keenoy E, Masjedi MR, Melen E, Melo-Gomes E, Menzies-Gow A, Mercier G, Mercier J, Michel JP, Miculinic N, Mihaltan F, Milenkovic B, Molimard M, Momas I, Montilla-Santana A, Morais-Almeida M, Morgan M, N'Diaye M, Nafti S, Nekam K, Neou A, Nicod L, O'Hehir R, Ohta K, Paggiaro P, Palkonen S, Palmer S, Papadopoulos NG, Papi A, Passalacqua G, Pavord I, Pigearias B, Plavec D, Postma DS, Price D, Rabe KF, Radier Pontal F, Redon J, Rennard S, Roberts J, Robine JM, Roca J, Roche N, Rodenas F, Roggeri A, Rolland C, Rosado-Pinto J, Ryan D, Samolinski B, Sanchez-Borges M, Schünemann HJ, Sheikh A, Shields M, Siafakas N, Sibille Y, Similowski T, Small I, Sola-Morales O, Sooronbaev T, Stelmach R, Sterk PJ, Stiris T, Sud P, Tellier V, To T, Todo-Bom A, Triggiani M, Valenta R, Valero AL, Valiulis A, Valovirta E, Van Ganse E, Vandenplas O, Vasankari T, Vestbo J, Vezzani G, Viegi G, Visier L, Vogelmeier C, Vontetsianos T, Wagstaff R, Wahn U, Wallaert B, Whalley B, Wickman M, Williams DM, Wilson N, Yawn BP, Yiallouros PK, Yorgancioglu A, Yusuf OM, Zar HJ, Zhong N, Zidarn M, Zuberbier T. Integrated care pathways for airway diseases (AIRWAYS-ICPs). Eur Respir J 2014; 44:304-23. [PMID: 24925919 DOI: 10.1183/09031936.00014614] [Citation(s) in RCA: 128] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The objective of Integrated Care Pathways for Airway Diseases (AIRWAYS-ICPs) is to launch a collaboration to develop multi-sectoral care pathways for chronic respiratory diseases in European countries and regions. AIRWAYS-ICPs has strategic relevance to the European Union Health Strategy and will add value to existing public health knowledge by: 1) proposing a common framework of care pathways for chronic respiratory diseases, which will facilitate comparability and trans-national initiatives; 2) informing cost-effective policy development, strengthening in particular those on smoking and environmental exposure; 3) aiding risk stratification in chronic disease patients, using a common strategy; 4) having a significant impact on the health of citizens in the short term (reduction of morbidity, improvement of education in children and of work in adults) and in the long-term (healthy ageing); 5) proposing a common simulation tool to assist physicians; and 6) ultimately reducing the healthcare burden (emergency visits, avoidable hospitalisations, disability and costs) while improving quality of life. In the longer term, the incidence of disease may be reduced by innovative prevention strategies. AIRWAYSICPs was initiated by Area 5 of the Action Plan B3 of the European Innovation Partnership on Active and Healthy Ageing. All stakeholders are involved (health and social care, patients, and policy makers).
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Abstract
Pneumonia remains the leading cause of childhood mortality and the most common reason for adult hospitalisation in low and middle income countries, despite advances in preventative and management strategies. In the last decade, pneumonia mortality in children has fallen to approximately 1.3 million cases in 2011, with most deaths occurring in low income countries. Important recent advances include more widespread implementation of protein-polysaccharide conjugate vaccines against Haemophilus influenzae type B and Streptococcus pneumoniae, implementation of case-management algorithms and better prevention and treatment of HIV. Determining the aetiology of pneumonia is challenging in the absence of reliable diagnostic tests. High uptake of new bacterial conjugate vaccines may impact on pneumonia burden, aetiology and empiric therapy but implementation in immunisation programmes in many low and middle income countries remains an obstacle. Widespread implementation of currently effective preventative and management strategies for pneumonia remains challenging in many low and middle income countries.
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le Roux SM, Cotton MF, Myer L, le Roux DM, Schaaf HS, Lombard CJ, Zar HJ. Safety of long-term isoniazid preventive therapy in children with HIV: a comparison of two dosing schedules. Int J Tuberc Lung Dis 2012; 17:26-31. [PMID: 23146410 DOI: 10.5588/ijtld.11.0820] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
SETTING Two paediatric hospitals in Cape Town, South Africa. OBJECTIVE To investigate the incidence of and risk factors for severe liver injury in human immunodeficiency virus (HIV) infected children receiving long-term isoniazid preventive therapy (IPT). DESIGN Randomised trial of IPT or placebo given daily or thrice weekly to HIV-infected children aged ≥8 weeks; placebo was discontinued early. Alanine transaminase (ALT) was measured at baseline, 6-monthly and during illness: an increase of ≥10 times the upper limit of normal defined severe liver injury. RESULTS Of 324 children enrolled, 297 (91.6%) received IPT (559.1 person-years [py]). Baseline median age was 23 months (interquartile range [IQR] 9.5-48.6) and median CD4%, 20% (IQR 13.6-26.9). A total of 207 (63.9%) children received combination antiretroviral therapy: 19 developed severe liver injury, 16 while receiving IPT. Among these there were 8 cases of viral hepatitis (5 with hepatitis A), 2 antiretroviral-induced liver injuries and 1 case of abdominal tuberculosis. IPT-related severe liver injury occurred in 1.7% (5/297, 0.78/100 py). No child developed hepatic failure; one died of an unrelated cause. All surviving children subsequently tolerated IPT. CONCLUSIONS This study suggests that long-term IPT has a low toxicity risk in HIV-infected children. In the absence of chronic viral hepatitis, IPT can be safely re-introduced following recovery from liver injury.
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Bousquet J, Schünemann HJ, Samolinski B, Demoly P, Baena-Cagnani CE, Bachert C, Bonini S, Boulet LP, Bousquet PJ, Brozek JL, Canonica GW, Casale TB, Cruz AA, Fokkens WJ, Fonseca JA, van Wijk RG, Grouse L, Haahtela T, Khaltaev N, Kuna P, Lockey RF, Lodrup Carlsen KC, Mullol J, Naclerio R, O'Hehir RE, Ohta K, Palkonen S, Papadopoulos NG, Passalacqua G, Pawankar R, Price D, Ryan D, Simons FER, Togias A, Williams D, Yorgancioglu A, Yusuf OM, Aberer W, Adachi M, Agache I, Aït-Khaled N, Akdis CA, Andrianarisoa A, Annesi-Maesano I, Ansotegui IJ, Baiardini I, Bateman ED, Bedbrook A, Beghé B, Beji M, Bel EH, Ben Kheder A, Bennoor KS, Bergmann KC, Berrissoul F, Bieber T, Bindslev Jensen C, Blaiss MS, Boner AL, Bouchard J, Braido F, Brightling CE, Bush A, Caballero F, Calderon MA, Calvo MA, Camargos PAM, Caraballo LR, Carlsen KH, Carr W, Cepeda AM, Cesario A, Chavannes NH, Chen YZ, Chiriac AM, Chivato Pérez T, Chkhartishvili E, Ciprandi G, Costa DJ, Cox L, Custovic A, Dahl R, Darsow U, De Blay F, Deleanu D, Denburg JA, Devillier P, Didi T, Dokic D, Dolen WK, Douagui H, Dubakiene R, Durham SR, Dykewicz MS, El-Gamal Y, El-Meziane A, Emuzyte R, Fiocchi A, Fletcher M, Fukuda T, Gamkrelidze A, Gereda JE, González Diaz S, Gotua M, Guzmán MA, Hellings PW, Hellquist-Dahl B, Horak F, Hourihane JO, Howarth P, Humbert M, Ivancevich JC, Jackson C, Just J, Kalayci O, Kaliner MA, Kalyoncu AF, Keil T, Keith PK, Khayat G, Kim YY, Koffi N'goran B, Koppelman GH, Kowalski ML, Kull I, Kvedariene V, Larenas-Linnemann D, Le LT, Lemière C, Li J, Lieberman P, Lipworth B, Mahboub B, Makela MJ, Martin F, Marshall GD, Martinez FD, Masjedi MR, Maurer M, Mavale-Manuel S, Mazon A, Melen E, Meltzer EO, Mendez NH, Merk H, Mihaltan F, Mohammad Y, Morais-Almeida M, Muraro A, Nafti S, Namazova-Baranova L, Nekam K, Neou A, Niggemann B, Nizankowska-Mogilnicka E, Nyembue TD, Okamoto Y, Okubo K, Orru MP, Ouedraogo S, Ozdemir C, Panzner P, Pali-Schöll I, Park HS, Pigearias B, Pohl W, Popov TA, Postma DS, Potter P, Rabe KF, Ratomaharo J, Reitamo S, Ring J, Roberts R, Rogala B, Romano A, Roman Rodriguez M, Rosado-Pinto J, Rosenwasser L, Rottem M, Sanchez-Borges M, Scadding GK, Schmid-Grendelmeier P, Sheikh A, Sisul JC, Solé D, Sooronbaev T, Spicak V, Spranger O, Stein RT, Stoloff SW, Sunyer J, Szczeklik A, Todo-Bom A, Toskala E, Tremblay Y, Valenta R, Valero AL, Valeyre D, Valiulis A, Valovirta E, Van Cauwenberge P, Vandenplas O, van Weel C, Vichyanond P, Viegi G, Wang DY, Wickman M, Wöhrl S, Wright J, Yawn BP, Yiallouros PK, Zar HJ, Zernotti ME, Zhong N, Zidarn M, Zuberbier T, Burney PG, Johnston SL, Warner JO. Allergic Rhinitis and its Impact on Asthma (ARIA): achievements in 10 years and future needs. J Allergy Clin Immunol 2012; 130:1049-62. [PMID: 23040884 DOI: 10.1016/j.jaci.2012.07.053] [Citation(s) in RCA: 358] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Revised: 07/24/2012] [Accepted: 07/27/2012] [Indexed: 02/07/2023]
Abstract
Allergic rhinitis (AR) and asthma represent global health problems for all age groups. Asthma and rhinitis frequently coexist in the same subjects. Allergic Rhinitis and its Impact on Asthma (ARIA) was initiated during a World Health Organization workshop in 1999 (published in 2001). ARIA has reclassified AR as mild/moderate-severe and intermittent/persistent. This classification closely reflects patients' needs and underlines the close relationship between rhinitis and asthma. Patients, clinicians, and other health care professionals are confronted with various treatment choices for the management of AR. This contributes to considerable variation in clinical practice, and worldwide, patients, clinicians, and other health care professionals are faced with uncertainty about the relative merits and downsides of the various treatment options. In its 2010 Revision, ARIA developed clinical practice guidelines for the management of AR and asthma comorbidities based on the Grading of Recommendation, Assessment, Development and Evaluation (GRADE) system. ARIA is disseminated and implemented in more than 50 countries of the world. Ten years after the publication of the ARIA World Health Organization workshop report, it is important to make a summary of its achievements and identify the still unmet clinical, research, and implementation needs to strengthen the 2011 European Union Priority on allergy and asthma in children.
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Bousquet J, Anto JM, Demoly P, Schünemann HJ, Togias A, Akdis M, Auffray C, Bachert C, Bieber T, Bousquet PJ, Carlsen KH, Casale TB, Cruz AA, Keil T, Lodrup Carlsen KC, Maurer M, Ohta K, Papadopoulos NG, Roman Rodriguez M, Samolinski B, Agache I, Andrianarisoa A, Ang CS, Annesi-Maesano I, Ballester F, Baena-Cagnani CE, Basagaña X, Bateman ED, Bel EH, Bedbrook A, Beghé B, Beji M, Ben Kheder A, Benet M, Bennoor KS, Bergmann KC, Berrissoul F, Bindslev Jensen C, Bleecker ER, Bonini S, Boner AL, Boulet LP, Brightling CE, Brozek JL, Bush A, Busse WW, Camargos PAM, Canonica GW, Carr W, Cesario A, Chen YZ, Chiriac AM, Costa DJ, Cox L, Custovic A, Dahl R, Darsow U, Didi T, Dolen WK, Douagui H, Dubakiene R, El-Meziane A, Fonseca JA, Fokkens WJ, Fthenou E, Gamkrelidze A, Garcia-Aymerich J, Gerth van Wijk R, Gimeno-Santos E, Guerra S, Haahtela T, Haddad H, Hellings PW, Hellquist-Dahl B, Hohmann C, Howarth P, Hourihane JO, Humbert M, Jacquemin B, Just J, Kalayci O, Kaliner MA, Kauffmann F, Kerkhof M, Khayat G, Koffi N'Goran B, Kogevinas M, Koppelman GH, Kowalski ML, Kull I, Kuna P, Larenas D, Lavi I, Le LT, Lieberman P, Lipworth B, Mahboub B, Makela MJ, Martin F, Martinez FD, Marshall GD, Mazon A, Melen E, Meltzer EO, Mihaltan F, Mohammad Y, Mohammadi A, Momas I, Morais-Almeida M, Mullol J, Muraro A, Naclerio R, Nafti S, Namazova-Baranova L, Nawijn MC, Nyembue TD, Oddie S, O'Hehir RE, Okamoto Y, Orru MP, Ozdemir C, Ouedraogo GS, Palkonen S, Panzner P, Passalacqua G, Pawankar R, Pigearias B, Pin I, Pinart M, Pison C, Popov TA, Porta D, Postma DS, Price D, Rabe KF, Ratomaharo J, Reitamo S, Rezagui D, Ring J, Roberts R, Roca J, Rogala B, Romano A, Rosado-Pinto J, Ryan D, Sanchez-Borges M, Scadding GK, Sheikh A, Simons FER, Siroux V, Schmid-Grendelmeier PD, Smit HA, Sooronbaev T, Stein RT, Sterk PJ, Sunyer J, Terreehorst I, Toskala E, Tremblay Y, Valenta R, Valeyre D, Vandenplas O, van Weel C, Vassilaki M, Varraso R, Viegi G, Wang DY, Wickman M, Williams D, Wöhrl S, Wright J, Yorgancioglu A, Yusuf OM, Zar HJ, Zernotti ME, Zidarn M, Zhong N, Zuberbier T. Severe chronic allergic (and related) diseases: a uniform approach--a MeDALL--GA2LEN--ARIA position paper. Int Arch Allergy Immunol 2012; 158:216-31. [PMID: 22382913 DOI: 10.1159/000332924] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Concepts of disease severity, activity, control and responsiveness to treatment are linked but different. Severity refers to the loss of function of the organs induced by the disease process or to the occurrence of severe acute exacerbations. Severity may vary over time and needs regular follow-up. Control is the degree to which therapy goals are currently met. These concepts have evolved over time for asthma in guidelines, task forces or consensus meetings. The aim of this paper is to generalize the approach of the uniform definition of severe asthma presented to WHO for chronic allergic and associated diseases (rhinitis, chronic rhinosinusitis, chronic urticaria and atopic dermatitis) in order to have a uniform definition of severity, control and risk, usable in most situations. It is based on the appropriate diagnosis, availability and accessibility of treatments, treatment responsiveness and associated factors such as comorbidities and risk factors. This uniform definition will allow a better definition of the phenotypes of severe allergic (and related) diseases for clinical practice, research (including epidemiology), public health purposes, education and the discovery of novel therapies.
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Moore HA, Apolles P, de Villiers PJT, Zar HJ. Sputum induction for microbiological diagnosis of childhood pulmonary tuberculosis in a community setting. Int J Tuberc Lung Dis 2012; 15:1185-90, i. [PMID: 21943843 DOI: 10.5588/ijtld.10.0681] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING Sputum induction has increasingly enabled microbiological confirmation of pulmonary tuberculosis (PTB) in hospitalised children, but it has not been evaluated in a community setting. OBJECTIVE To investigate the yield, feasibility and safety of sputum induction for the diagnosis of TB in children in a primary health care facility. DESIGN A prospective study in a primary health care clinic in South Africa from April 2007 to June 2009. Consecutive children with clinically suspected PTB, with a household adult PTB contact or human immunodeficiency virus infected with respiratory symptoms were enrolled. History, clinical examination, tuberculin skin test and chest X-ray results were recorded. Two sequential induced sputum specimens were obtained for smear and culture. RESULTS A total of 270 children were enrolled (median age 38 months); sputum induction was successful in 269 (99%); 65 (24%) children were clinically diagnosed, of whom 11 (16.9%) were microbiologically confirmed. An additional 18 children not clinically diagnosed had microbiological confirmation of PTB and were placed on TB treatment thereafter, increasing the diagnostic yield by 21.6%, from 65 to 83 cases. Sputum induction procedures were well tolerated; no major adverse events occurred. CONCLUSION Sputum induction is feasible and safe in a community setting. Sputum induction was useful for making a microbiological diagnosis, increasing the number of children diagnosed and treated for PTB.
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Lalloo UG, Walters RD, Adachi M, de Guia T, Emelyanov A, Fritscher CC, Hong J, Jimenez C, King GG, Lin J, Loaiza A, Nadeau G, Neffen H, Sekerel BE, Yorgancioğlu A, Zar HJ. Asthma programmes in diverse regions of the world: challenges, successes and lessons learnt. Int J Tuberc Lung Dis 2011; 15:1574-87. [PMID: 21888756 DOI: 10.5588/ijtld.11.0289] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
International surveys have demonstrated that asthma is still underdiagnosed and undertreated in many parts of the world. Despite improvements in the standard of asthma care delivered in many areas, as evidenced by improved global asthma mortality data, much information on projects and programmes undertaken in resource-limited regions of the world is not in the public domain. The aim of this report is to review projects and programmes in diverse regions around the world so that health care providers, planners and consumers may draw on the successes, failures and lessons learnt. Such real world experiences may contribute to achieving Global Initiative for Asthma goals of asthma control. Asthma projects and programmes in Argentina, Australia, Brazil, China, Japan, Mexico, Philippines, Russia, South Africa and Turkey were discussed by a group of experts in asthma care, the Advancing Asthma Care Network, from their respective countries, over a course of three satellite meetings in 2010. Collective analyses consistently identified low rates of dissemination and implementation of national and international treatment guidelines, low levels of continuing medical education and training of primary health care professionals and access and distribution of inhaled corticosteroids to be major barriers that are critical to the overall success of a national asthma management programme. In the less developed asthma programmes, under-recognition and undertreatment further limited the success of the programmes. Evidence from well-established national asthma management programmes suggests that establishment of a successful programme entails a logical progression through specific developmental stages, starting with political/stakeholder endorsement and commitment, followed by epidemiological evaluation, evaluation of disease burden, evaluation of access to care and best therapy, and finally optimisation and maintenance therapy for individual patients.
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Frigati LJ, Kranzer K, Cotton MF, Schaaf HS, Lombard CJ, Zar HJ. The impact of isoniazid preventive therapy and antiretroviral therapy on tuberculosis in children infected with HIV in a high tuberculosis incidence setting. Thorax 2011; 66:496-501. [PMID: 21460373 DOI: 10.1136/thx.2010.156752] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND Tuberculosis (TB) is a major cause of morbidity and mortality among children infected with HIV. Strategies to prevent TB in children include isoniazid preventive therapy (IPT) and antiretroviral therapy (ART). IPT and ART have been reported to reduce TB incidence in adults but there are few studies in children. OBJECTIVE To investigate the combined effect of IPT and ART on TB risk in children infected with HIV. METHODS A cohort analysis was done within a prospective, double-blinded, placebo-controlled trial of isoniazid (INH) compared with placebo in children infected with HIV in Cape Town, South Africa, a high TB incidence setting. In May 2004 the placebo arm was terminated and all children were switched to INH. ART was not widely available at the start of the study, but children were started on ART following the establishment of the national ART program in 2004. Data were analysed using Cox proportional hazard regression. RESULTS After adjusting for age, nutritional status and immunodeficiency at enrolment, INH alone, ART alone and INH combined with ART reduced the risk of TB disease by 0.22 (95% CI 0.09 to 0.53), 0.32 (95% CI 0.07 to 1.55) and 0.11 (95% CI 0.04 to 0.32) respectively. INH reduced the risk of TB disease in children on ART by 0.23 (95% CI 0.05 to 1.00). CONCLUSIONS The finding that IPT may offer additional protection in children on ART has significant public health implications because this offers a possible strategy for reducing TB in children infected with HIV. Widespread use of this strategy will however require screening of children for active TB disease. Trial registration Trial registration-Clinical Trials NCT00330304.
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Bousquet J, Schünemann HJ, Zuberbier T, Bachert C, Baena-Cagnani CE, Bousquet PJ, Brozek J, Canonica GW, Casale TB, Demoly P, Gerth van Wijk R, Ohta K, Bateman ED, Calderon M, Cruz AA, Dolen WK, Haughney J, Lockey RF, Lötvall J, O'Byrne P, Spranger O, Togias A, Bonini S, Boulet LP, Camargos P, Carlsen KH, Chavannes NH, Delgado L, Durham SR, Fokkens WJ, Fonseca J, Haahtela T, Kalayci O, Kowalski ML, Larenas-Linnemann D, Li J, Mohammad Y, Mullol J, Naclerio R, O'Hehir RE, Papadopoulos N, Passalacqua G, Rabe KF, Pawankar R, Ryan D, Samolinski B, Simons FER, Valovirta E, Yorgancioglu A, Yusuf OM, Agache I, Aït-Khaled N, Annesi-Maesano I, Beghe B, Ben Kheder A, Blaiss MS, Boakye DA, Bouchard J, Burney PG, Busse WW, Chan-Yeung M, Chen Y, Chuchalin AG, Costa DJ, Custovic A, Dahl R, Denburg J, Douagui H, Emuzyte R, Grouse L, Humbert M, Jackson C, Johnston SL, Kaliner MA, Keith PK, Kim YY, Klossek JM, Kuna P, Le LT, Lemiere C, Lipworth B, Mahboub B, Malo JL, Marshall GD, Mavale-Manuel S, Meltzer EO, Morais-Almeida M, Motala C, Naspitz C, Nekam K, Niggemann B, Nizankowska-Mogilnicka E, Okamoto Y, Orru MP, Ouedraogo S, Palkonen S, Popov TA, Price D, Rosado-Pinto J, Scadding GK, Sooronbaev TM, Stoloff SW, Toskala E, van Cauwenberge P, Vandenplas O, van Weel C, Viegi G, Virchow JC, Wang DY, Wickman M, Williams D, Yawn BP, Zar HJ, Zernotti M, Zhong N. Development and implementation of guidelines in allergic rhinitis – an ARIA-GA2LEN paper. Allergy 2010; 65:1212-21. [PMID: 20887423 DOI: 10.1111/j.1398-9995.2010.02439.x] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The links between asthma and rhinitis are well characterized. The Allergic Rhinitis and its Impact on Asthma (ARIA) guidelines stress the importance of these links and provide guidance for their prevention and treatment. Despite effective treatments being available, too few patients receive appropriate medical care for both diseases. Most patients with rhinitis and asthma consult primary care physicians and therefore these physicians are encouraged to understand and use ARIA guidelines. Patients should also be informed about these guidelines to raise their awareness of optimal care and increase control of the two related diseases. To apply these guidelines, clinicians and patients need to understand how and why the recommendations were made. The goal of the ARIA guidelines is to provide recommendations about the best management options for most patients in most situations. These recommendations should be based on the best available evidence. Making recommendations requires the assessment of the quality of available evidence, deciding on the balance between benefits and downsides, consideration of patients’ values and preferences, and, if applicable, resource implications. Guidelines must be updated as new management options become available or important new evidence emerges. Transparent reporting of guidelines facilitates understanding and acceptance, but implementation strategies need to be improved.
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Pitcher RD, Beningfield SJ, Zar HJ. Chest radiographic features of lymphocytic interstitial pneumonitis in HIV-infected children. Clin Radiol 2009; 65:150-4. [PMID: 20103438 DOI: 10.1016/j.crad.2009.10.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2009] [Revised: 09/12/2009] [Accepted: 10/05/2009] [Indexed: 11/18/2022]
Abstract
AIM To review the radiological features of biopsy-proven lymphocytic interstitial pneumonitis (LIP) in human immunodeficiency virus (HIV)-infected children and establish whether these are based on systematic radiological analysis, and to investigate whether more specific radiological diagnostic criteria can be developed. MATERIALS AND METHODS A Medline search of English-language articles on the radiological features of biopsy-proven LIP in HIV-infected children was conducted for the period 1982 to 2007 inclusive. Radiological findings were compared with the Centers for Disease Control and Prevention (CDC) criteria for a presumptive diagnosis of LIP. RESULTS Pulmonary pathology was recorded as "diffuse" and "bilateral" in 125 (97.6%) of 128 reported cases of LIP. Twenty-five different terms were used to describe the pulmonary parenchyma. In 96 (75%), the terminology was consistent with CDC diagnostic criteria. Radiological evolution was documented in 43 (33.5%). Persistent focal opacification superimposed on diffuse pulmonary nodularity was demonstrated in 10 (7.8%). The method of radiological evaluation was described in six (4.6%). In no instance was the terminology defined. CONCLUSION The radiological features of LIP have not been systematically analysed. However, CDC criteria remain reliable, allowing diagnosis of at least 75% of cases. The sensitivity of these criteria may be increased by including cases with persistent focal pulmonary opacification superimposed on diffuse nodularity. Longitudinal studies utilizing standardized radiographic analysis are needed to elucidate the natural history of LIP.
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Motala C, Green RJ, Manjra AI, Potter PC, Zar HJ. Guideline for the management of chronic asthma in children--2009 update. S Afr Med J 2009; 99:898-912. [PMID: 20455316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023] Open
Abstract
OBJECTIVE To revise the guideline for the diagnosis and management of chronic asthma in children in view of the following considerations: the existing South African Childhood Asthma Working Group (SACAWG) guideline was produced 10 years ago; diagnosis of asthma in young children remains a challenge; evidence-based treatment is the new paradigm; new treatment approaches to achieving and maintaining control; therapeutic roles of several medications have evolved; more studies and data on treatment in young children; new medications and formulations; a change of emphasis in assessing asthma control to guide treatment changes. The main aim of the guideline is to promote a better standard of treatment based on understanding of the pathophysiology and pharmacotherapy of asthma, and encouraging uniformity in asthma management. EVIDENCE A detailed literature review by a working group of clinicians from relevant disciplines. The strategies recommended are classified according to the evidence category in Appendix B, and denoted as Evidence A, B, C and D. RECOMMENDATIONS These include an appropriate diagnostic approach, environmental control measures, treatment options, definition of asthma control, and strategies to achieve control. ENDORSEMENT The guideline document was endorsed by the South African Thoracic Society (SATS), the National Asthma Education Programme (NAEP), the South African Paediatric Association (SAPA) and the South African Academy of Family Practice.
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Hatherill M, Hawkridge T, Zar HJ, Whitelaw A, Tameris M, Workman L, Geiter L, Hanekom WA, Hussey G. Induced sputum or gastric lavage for community-based diagnosis of childhood pulmonary tuberculosis? Arch Dis Child 2009; 94:195-201. [PMID: 18829621 DOI: 10.1136/adc.2007.136929] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES To compare the diagnostic yield of Mycobacterium tuberculosis from induced sputum (IS) and gastric lavage (GL) among children in a community setting. METHODS Specimen-collection methods for bacteriological confirmation of pulmonary tuberculosis (PTB) were compared during a tuberculosis vaccine trial near Cape Town, South Africa (2001-2006). Children with a tuberculosis contact or compatible symptoms were investigated for suspected PTB. Diagnostic yields from 764 paired IS and GL specimens were compared in 191 culture-confirmed cases. MEASUREMENTS AND MAIN RESULTS The crude yield of M tuberculosis was 10.4%, n = 108 by IS (5.8%) and n = 127 by GL (6.8%), from a total of 194 cases, of which three had incomplete IS/GL specimen pairs. Agreement between IS and GL was poor (kappa = 0.31). The comparative yield of a single IS sample (38%) was equivalent to a single GL sample (42%), with a difference in yield of -4% (95% CI -15% to +7%). The combined yield of same-day IS and GL specimens (67%) was equivalent to two consecutive GL specimens (66%), with a difference in yield of 1% (95% CI -9% to 11%), but significantly greater than two consecutive IS specimens (55%), with a difference in yield of 12% (95% CI 2% to 21%). The adjusted odds of a M tuberculosis culture were increased by a positive tuberculin skin test or chest radiograph compatible with PTB. CONCLUSIONS In this community setting, the diagnostic yield of a single IS sample was equivalent to that of a single GL sample. The optimal diagnostic yield may be obtained from paired IS and GL specimens taken on a single day or two GL specimens taken on consecutive days.
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Bateman ED, Hurd SS, Barnes PJ, Bousquet J, Drazen JM, FitzGerald JM, Gibson P, Ohta K, O'Byrne P, Pedersen SE, Pizzichini E, Sullivan SD, Wenzel SE, Zar HJ. Global strategy for asthma management and prevention: GINA executive summary. Eur Respir J 2008; 31:143-78. [PMID: 18166595 DOI: 10.1183/09031936.00138707] [Citation(s) in RCA: 1960] [Impact Index Per Article: 122.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Asthma is a serious health problem throughout the world. During the past two decades, many scientific advances have improved our understanding of asthma and ability to manage and control it effectively. However, recommendations for asthma care need to be adapted to local conditions, resources and services. Since it was formed in 1993, the Global Initiative for Asthma, a network of individuals, organisations and public health officials, has played a leading role in disseminating information about the care of patients with asthma based on a process of continuous review of published scientific investigations. A comprehensive workshop report entitled "A Global Strategy for Asthma Management and Prevention", first published in 1995, has been widely adopted, translated and reproduced, and forms the basis for many national guidelines. The 2006 report contains important new themes. First, it asserts that "it is reasonable to expect that in most patients with asthma, control of the disease can and should be achieved and maintained," and recommends a change in approach to asthma management, with asthma control, rather than asthma severity, being the focus of treatment decisions. The importance of the patient-care giver partnership and guided self-management, along with setting goals for treatment, are also emphasised.
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Pitcher RD, Zar HJ. Radiographic features of paediatric pneumocystis pneumonia -- a historical perspective. Clin Radiol 2008; 63:666-72. [PMID: 18455558 DOI: 10.1016/j.crad.2007.08.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2007] [Revised: 08/16/2007] [Accepted: 08/24/2007] [Indexed: 11/18/2022]
Abstract
AIM To determine differences between the plain radiographic features of paediatric pneumocystis pneumonia (PCP) recorded before the emergence of human immunodeficiency virus (HIV) in 1982 and those documented in the HIV era. To establish differences in the radiographic features of PCP documented in HIV-infected children in developed and developing countries. METHOD A Medline search of articles was conducted from 1950 to 2006, using the terms "pneumocystis pneumonia in children" and "chest radiographic features" or "bilateral opacification" or "lobar consolidation" or "asymmetrical opacification" or "pneumatocoeles" or "cavities" or "pneumothorax" or "pneumomediastinum" or "pleural effusion" or "mediastinal adenopathy" or "nodules" or "normal chest radiography". Appropriate articles were retrieved, radiological data extracted, reference lists examined and hand searches of referenced articles conducted. RESULTS Diffuse bilateral "ground-glass" or alveolar pulmonary opacification, which may show some asymmetry, has been consistently documented as the commonest radiographic finding in childhood PCP throughout the period under review. The less common radiological features of PCP in children are similar to those in adults. In developed countries, PCP-related pulmonary air cysts have been reported at an earlier age in HIV-infected children, compared with uninfected children. PCP-related air cysts, pneumothorax, and pneumomediastinum have been reported in children in developed but not in developing countries. CONCLUSION The radiological features of paediatric PCP documented before the HIV epidemic are similar to those recorded in the HIV era. Further study of the determinants of the uncommon radiographic features in children is warranted.
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Green RJ, Feldman C, Schoub B, Richards GA, Madhi SA, Zar HJ, Lalloo U, Klugman K, Phillips D, Cameron NA, Eggers RR. Influenza guideline for South Africa--update 2008. S Afr Med J 2008; 98:224-230. [PMID: 18652399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
OBJECTIVE The South African Thoracic Society, in conjunction with interested stakeholders, published a Guideline for Influenza Management in Adults in 1999. This year the South African Thoracic Society (SATS) identified the need to revise that guideline for the following reasons: * To indicate the viral strains that are to be incorporated into the vaccine for the 2008 season * To add important new data regarding treatment of influenza * To add a section on influenza in children * To clarify issues in managing and preventing influenza in HIV-infected individuals. INFLUENZA VIRUS The influenza virus genus belongs to the family orthomyxoviridae. The haemagglutinin (HA) protein is the outermost protein, responsible for attachment to the host receptor, and is critical in determining the host's immune response to the virus. Changes in the antigenic epitopes of HA therefore allow the virus to escape the host's specific immune response. The genus is classified into three types, A, B and C, on the basis of the antigenic epitopes of the nucleoprotein (NP). Type A, which is widespread in nature in birds and mammals, is the most important type clinically and epidemiologically. It is further divided into subtypes on the basis of the antigenic epitopes of the HA and neuraminidase (NA) proteins. Each of the human subtypes H1N1, H2N2 and H3N2 are further subdivided into strains on the basis of more subtle antigenic properties of the HA protein. INFLUENZA VACCINATION Influenza vaccine is the mainstay of influenza prevention strategies. All persons who are at high risk of influenza and its complications because of underlying medical conditions or who are receiving regular medical care for conditions such as chronic pulmonary and cardiac disease, chronic renal diseases, neuromuscular diseases, diabetes mellitus and similar metabolic disorders, and individuals who are immunosuppressed (including HIV-infected persons with CD4 counts above 100 cells/microl and HIV-infected children with CD4 counts >15%), should be vaccinated. Vaccines should be given from at least 2 months prior to the onset of autumn (March in South Africa). The recommended vaccine formulation for 2008 is: * A/Solomon Islands/3/2006 (H1N1) (IVR-145) * A/Brisbane/10/2007 (H3N2) (IVR-147) * B/Florida/4/2006 or B/Brisbane/3/2007. TREATMENT OF INFLUENZA Influenza illness is characterised by the acute onset of systemic and respiratory signs occurring in autumn or winter. Recommendations for the Prevention and Control of Influenza have indicated that neither amantadine nor rimantadine should be used for the treatment or chemoprophylaxis of influenza A. NA inhibitors are an important adjunct to influenza vaccination, in both the prevention and treatment of influenza. Because of concerns about the possibility of the development of viral resistance with overuse of these agents, it is recommended that NA inhibitors in the treatment of influenza should be reserved for high-risk or sicker influenza patients.
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Green RJ, Zar HJ, Bateman ED. Asthma--is survival good enough? S Afr Med J 2007; 97:172-4. [PMID: 17440659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023] Open
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