1
|
Cham B, Weaver SR, Jones CK, Popova L, Jacques N. Prevalence and associated factors of shisha smoking among students in Senegal: Global Youth Tobacco Survey 2020. Tob Induc Dis 2024; 22:TID-22-77. [PMID: 38745595 PMCID: PMC11091866 DOI: 10.18332/tid/186656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/29/2024] [Accepted: 04/02/2024] [Indexed: 05/16/2024] Open
Abstract
INTRODUCTION Although shisha smoking is banned in Senegal, it has become increasingly popular, especially among youth. Despite the health risks associated with shisha smoking, there are few studies on shisha smoking in West Africa and none in Senegal. Our study assessed the prevalence and factors associated with shisha smoking among students aged 13-15 years in Senegal. METHODS We used the 2020 Global Youth Tobacco Survey (GYTS) Senegal data from 2524 students aged 13-15 years. We calculated the weighted prevalence of ever and current (past 30 days) shisha smoking. Multivariable logistic regression analyses identified factors associated with ever and current shisha smoking among students. RESULTS The prevalences of ever and current shisha smoking were 9.8% (95% CI: 7.7-12.3) and 2.2% (95% CI: 1.5-3.1), respectively. Ever shisha smoking was significantly associated with being male (AOR=1.97; 95% CI: 1.33-2.92), current cigarette smoking (AOR=7.54; 95% CI: 2.95-19.29), higher class grade (AOR=2.27; 95% CI:1.10-4.67), more weekly pocket money (AOR=3.29; 95% CI:1.36-7.95), current use of smokeless tobacco (AOR=11.53; 95% CI: 4.98- 26.72), and exposure to secondhand cigarette smoke in public (AOR=1.55; 95% CI: 1.00-2.41). Current shisha smoking was significantly associated with current cigarette smoking (AOR=21.75; 95% CI: 6.08-77.78), more weekly pocket money (AOR=8.91; 95% CI: 1.75-45.40), current use of smokeless tobacco (AOR=8.26; 95% CI: 2.07-33.04), and fathers' smoking (AOR=3.34; 95% CI: 1.24-8.96). CONCLUSIONS One in 10 students aged 13-15 years have ever smoked shisha and 2.2% were currently smoking it, suggesting that shisha smoking is a public health concern in Senegal. Senegal might consider offering students more education on the harms of shisha, both in schools and through comprehensive media campaigns that address all tobacco products.
Collapse
Affiliation(s)
- Bai Cham
- School of Public Health, Georgia State University, Atlanta, United States
- Disease Control and Elimination Theme, Medical Research Council Unit The Gambia, London School of Hygiene and Tropical Medicine, Banjul, The Gambia
| | - Scott R. Weaver
- School of Public Health, Georgia State University, Atlanta, United States
| | - Candace K. Jones
- Office on Smoking and Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, United States
- Research Triangle Institute (RTI) International, Research Triangle Park, United States
| | - Lucy Popova
- School of Public Health, Georgia State University, Atlanta, United States
| | - Nerline Jacques
- Office on Smoking and Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, United States
- CyberData Technologies, Herndon, United States
| |
Collapse
|
2
|
Sowe A, Namatovu F, Cham B, Gustafsson PE. Missed opportunities for vaccination at point of care and their impact on coverage and urban-rural coverage inequity in the Gambia. Vaccine 2023; 41:7647-7654. [PMID: 37996292 DOI: 10.1016/j.vaccine.2023.11.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/07/2023] [Accepted: 11/18/2023] [Indexed: 11/25/2023]
Abstract
INTRODUCTION Identifying actionable targets is crucial to improve overall and equity in vaccination coverage, and in line with the global Immunization Agenda 2030. Therefore, this study seeks to assess the prevalence of missed opportunities for simultaneous vaccination (MOSVs) and their impact on vaccination coverage and urban-rural inequity in The Gambia. METHODS We used data of children aged 12-23 months from The Gambia 2019/2020 demographic and health survey (weighted n = 1355) with seen vaccination cards. We analyzed: the frequency of MOSVs; percentage point coverage reduction attributable to MOSVs for 18 vaccine doses and full basic vaccination; and MOSVs' contribution to urban-rural coverage inequity through Blinder-Oaxaca decomposition. RESULTS Sixty percent of children experienced MOSVs, in both urban and rural areas, but urban MOSVs were more seldom corrected (35.9 % vs 45.3 %). All eighteen vaccine doses assessed could have achieved between one to eleven percentage points higher coverage if MOSVs had been avoided, with full basic vaccination gaining even more. While MOSV correction did not impact overall urban-rural coverage inequity, it did exacerbate (explained coefficient = -0.1007; P = 0.002) inequities among children who experienced MOSVs, explaining 95 % of the observed difference. CONCLUSION Our study highlights the prevalence and negative impact of MOSVs on overall vaccination coverage. Although MOSVs did not contribute significantly to the total urban-rural inequity in coverage, they have detrimental effects on vaccination coverage and urban-rural inequity among children who had experienced MOSVs. Addressing MOSVs, can enhance coverage and reduce the risk of under-vaccination, aligning with global initiatives.
Collapse
Affiliation(s)
- Alieu Sowe
- Department of Epidemiology and Global Health, Umeå University, Umeå, Sweden; Expanded Program on Immunization, Ministry of Health, Banjul, the Gambia.
| | - Fredinah Namatovu
- Department of Epidemiology and Global Health, Umeå University, Umeå, Sweden
| | - Bai Cham
- Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, Bakau, the Gambia; School of Public Health, Georgia State University, Atlanta, GA, USA
| | - Per E Gustafsson
- Department of Epidemiology and Global Health, Umeå University, Umeå, Sweden
| |
Collapse
|
3
|
Cham B, Popova L, Badjie O, Weaver SR. Factors associated with successful purchase of cigarettes among students aged 11-17 years who made a purchase attempt in The Gambia: Evidence from the 2017 Global Youth Tobacco Survey. Tob Induc Dis 2023; 21:103. [PMID: 37564052 PMCID: PMC10401330 DOI: 10.18332/tid/168669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/21/2023] [Accepted: 06/24/2023] [Indexed: 08/12/2023] Open
Abstract
INTRODUCTION Access to tobacco plays a strong role in smoking initiation among youth. This study aimed to quantify successful purchase of cigarettes and assess the factors associated with cigarette purchase access among students aged 11-17 years in The Gambia. METHODS We used the 2017 Global Youth Tobacco Survey (GYTS) of 12585 students, aged 11-17 years from The Gambia. The analysis was restricted to 2951 students aged 11-17 years who bought and/or attempted to buy cigarettes within the past 30 days regardless of smoking status. Our outcome was purchasing access, defined as successfully purchasing cigarettes within the past 30 days. We report a weighted prevalence of successful purchase attempt. Multivariable logistic regression assessed the factors associated with successful purchase of cigarettes and was adjusted for non-response and the complex survey design. RESULTS Most students (59.4%, 95% CI: 55.4-63.3) who attempted to purchase cigarettes were successful, most of whom were boys (61.3%, 95% CI: 57.8-64.6). However, there was no significant difference in successful attempts to purchase cigarettes between boys (59.3%, 95% CI: 54.2-64.2) and girls (59.4%, 95% CI: 55.4-63.3). Older age (AOR=2.45; 95% CI: 1.25-4.78), higher school grade (AOR=1.53; 95% CI: 1.09-2.16) and current cigarettes smoking (AOR=1.41; 95% CI: 1.08-1.85) were significantly associated with successful attempt to purchase cigarettes. Sex, parents' smoking status and students' weekly pocket money were not associated with successful cigarettes purchase attempt. Among students who currently smoke cigarettes, 55.6% (95% CI: 47.7-63.2) bought them from a store, shop, street vendor, or canteen; 12.2% (95% CI: 8.3-17.5) obtained them from someone else, and 6.7% (95% CI: 4.4-10.0) used other means the last time they smoked. CONCLUSIONS Students in The Gambia can purchase cigarettes without much hinderance despite the restrictions. Our research findings can guide the implementation of policies, programs, and public health strategies including more efforts toward implementing tobacco control laws and regulations that protect children from exposure and use of all forms of tobacco products.
Collapse
Affiliation(s)
- Bai Cham
- School of Public Health, Georgia State University, Atlanta, United States
- Disease Control and Elimination Theme, Medical Research Council Unit The Gambia at London School of Hygiene and Tropical Medicine, Fajara, The Gambia
| | - Lucy Popova
- School of Public Health, Georgia State University, Atlanta, United States
| | - Omar Badjie
- Non-Communicable Disease Program Unit, Ministry of Health, Banjul, The Gambia
| | - Scott R. Weaver
- School of Public Health, Georgia State University, Atlanta, United States
| |
Collapse
|
4
|
Cham B, Sey Corr R, Weaver SR, Eriksen MP, Popova L. Intravaginal insertion of tobacco among women in sub-Saharan Africa. Tob Control 2023:tc-2022-057831. [PMID: 37059465 DOI: 10.1136/tc-2022-057831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 03/14/2023] [Indexed: 04/16/2023]
Affiliation(s)
- Bai Cham
- School of Public Health, Georgia State University, Atlanta, Georgia, USA
- Disease Control and Elimination Theme, Medical Research Council Unit The Gambia, Atlantic Boulevard, Fajara, The Gambia
| | | | - Scott R Weaver
- School of Public Health, Georgia State University, Atlanta, Georgia, USA
| | - Michael P Eriksen
- School of Public Health, Georgia State University, Atlanta, Georgia, USA
| | - Lucy Popova
- School of Public Health, Georgia State University, Atlanta, Georgia, USA
| |
Collapse
|
5
|
Sowe A, Namatovu F, Cham B, Gustafsson PE. Impact of a performance monitoring intervention on the timeliness of Hepatitis B birth dose vaccination in the Gambia: a controlled interrupted time series analysis. BMC Public Health 2023; 23:568. [PMID: 36973797 PMCID: PMC10041491 DOI: 10.1186/s12889-023-15499-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 03/21/2023] [Indexed: 03/29/2023] Open
Abstract
INTRODUCTION The Hepatitis B virus that can cause liver cancer is highly prevalent in the Gambia, with one in ten babies at risk of infection from their mothers. Timely hepatitis B birth dose administration to protect babies is very low in The Gambia. Our study assessed whether 1) a timeliness monitoring intervention resulted in hepatitis B birth dose timeliness improvements overall, and 2) the intervention impacted differentially among health facilities with different pre-intervention performances. METHODS We used a controlled interrupted time series design including 16 intervention health facilities and 13 matched controls monitored from February 2019 to December 2020. The intervention comprised a monthly hepatitis B timeliness performance indicator sent to health workers via SMS and subsequent performance plotting on a chart. Analysis was done on the total sample and stratified by pre-intervention performance trend. RESULTS Overall, birth dose timeliness improved in the intervention compared to control health facilities. This intervention impact was, however, dependent on pre-intervention health facility performance, with large impact among poorly performing facilities, and with uncertain moderate and weak impacts among moderately and strongly performing facilities, respectively. CONCLUSION The implementation of a novel hepatitis B vaccination timeliness monitoring system in health facilities led to overall improvements in both immediate timeliness rate and trend, and was especially helpful in poorly performing health facilities. These findings highlight the overall effectiveness of the intervention in a low-income setting, and also its usefulness to aid facilities in greatest need of improvement.
Collapse
Affiliation(s)
- Alieu Sowe
- Department of Epidemiology and Global Health, Umeå University, Umeå, Sweden.
- Expanded Program On Immunization, Ministry of Health, Banjul, The Gambia.
| | - Fredinah Namatovu
- Department of Epidemiology and Global Health, Umeå University, Umeå, Sweden
| | - Bai Cham
- Medical Research Council Unit The Gambia at the London, School of Hygiene and Tropical Medicine, Bakau, The Gambia
- School of Public Health, Georgia State University, Atlanta, GA, USA
| | - Per E Gustafsson
- Department of Epidemiology and Global Health, Umeå University, Umeå, Sweden
| |
Collapse
|
6
|
Lyons CE, Twahirwa Rwema JO, Makofane K, Diouf D, Mfochive Njindam I, Ba I, Kouame A, Tamoufe U, Cham B, Aliu Djaló M, Obodou EP, Karita E, Simplice A, Nowak RG, Crowell TA, Matse S, Kouanda S, Enama JP, Kavanagh M, Millett GA, Beyrer C, Murray S, Baral S. Associations between punitive policies and legal barriers to consensual same-sex sexual acts and HIV among gay men and other men who have sex with men in sub-Saharan Africa: a multicountry, respondent-driven sampling survey. Lancet HIV 2023; 10:e186-e194. [PMID: 36623537 PMCID: PMC10288909 DOI: 10.1016/s2352-3018(22)00336-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 10/27/2022] [Accepted: 11/08/2022] [Indexed: 01/09/2023]
Abstract
BACKGROUND Few assessments of associations between structural-level factors and HIV among gay men and other men who have sex with men (MSM) have been conducted, especially in sub-Saharan Africa. Our objective was to examine HIV testing history, HIV status, and stigmas among MSM living in ten countries with heterogeneous legal environments. METHODS This study used pooled data from ten country-specific, cross-sectional studies done in 25 sites in Burkina Faso, Cameroon, Côte d'Ivoire, The Gambia, Guinea-Bissau, Nigeria, Senegal, Eswatini, Rwanda, and Togo. MSM were recruited by respondent-driven sampling and were eligible if they met country-specific requirements for age, area of residence, and self reported being assigned male sex at birth and having anal sex with a man in the past 12 months. Policy related to same-sex sexual behaviour for each country was categorised as not criminalised or criminalised. Countries were also categorised on the basis of recent reports of prosecutions related to same-sex sexual acts. Legal barriers were defined as those that legally prevented registration or operation of sexual orientation related civil society organisations (CSOs). Individual data on HIV testing history, HIV status, and stigma were collected via interviewer-administered sociobehavioural questionnaires and HIV testing. Multilevel logistic regression with random intercepts was used to assess the association between policies, recent prosecutions, legal barriers to CSOs, and HIV-related factors with adjusted odds ratios (aORs) and 95% CIs. FINDINGS Between Aug 3, 2011, and May 27, 2020, we recruited 8047 MSM with a median age of 23 years (IQR 21-27). 4886 (60·7%) lived in countries that criminalise same-sex sexual acts. HIV prevalence among MSM was higher in criminalised settings than non-criminalised settings (aOR 5·15, 95% CI 1·12-23·57); higher in settings with recent prosecutions than in settings without prosecutions (12·06, 7·19-20·25); and higher in settings with barriers to CSOs than without barriers to CSOs (9·83, 2·00-48·30). HIV testing or status awareness was not associated with punitive policies or practices. Stigma was associated with HIV status but did not consistently vary across legal environments. Disparities in HIV prevalence between MSM and other adult men were highest in punitive settings. INTERPRETATION Structural risks including discriminatory country-level policies, prosecutions, and legal barriers might contribute to higher HIV prevalence among MSM. Taken together, these data highlight the importance of decriminalisation and decreasing enforcement, alongside stigma reduction, as central to effective control for HIV. FUNDING National Institutes of Health. TRANSLATION For the French translation of the abstract see Supplementary Materials section.
Collapse
Affiliation(s)
- Carrie E Lyons
- Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, MD, USA.
| | | | - Keletso Makofane
- FXB Health and Human Rights, Harvard T H Chan School of Public Health, Boston, MA, USA
| | | | | | | | - Abo Kouame
- Ministère de la Santé et de l'Hygiène Publique, Abidjan, Côte d'Ivoire
| | - Ubald Tamoufe
- Johns Hopkins Cameroon Program/Metabiota, Yaoundé, Cameroon
| | | | | | | | | | | | - Rebecca G Nowak
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Trevor A Crowell
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA; US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA; Henry M Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | - Sindy Matse
- Eswatini Ministry of Health, Mbabane, Eswatini
| | - Seni Kouanda
- Institut de Recherche en Sciences de la Santé, Ouagadougou, Burkina Faso; Institut Africain de Santé Publique, Ouagadougou, Burkina Faso
| | | | - Matthew Kavanagh
- Department of International Health and Neill Institute for National and Global Health Law, Georgetown University, Washington, DC, USA
| | | | - Chris Beyrer
- Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, MD, USA; Duke Global Health Institute, Duke University, Durham, NC, USA
| | - Sarah Murray
- Department of Mental Health, Johns Hopkins School of Public Health, Baltimore, MD, USA
| | - Stefan Baral
- Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, MD, USA
| |
Collapse
|
7
|
Dare C, Cham B, Boachie MK, Gitonga Z, D'Alessandro U, Walbeek C. Effect of price on the decision to experiment with cigarette smoking among Gambian children: a survival analysis using the Gambia 2017 Global Youth Tobacco Survey data. BMJ Open 2022; 12:e061045. [PMID: 36351724 PMCID: PMC9644320 DOI: 10.1136/bmjopen-2022-061045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVES To investigate the relationship between cigarette prices and smoking experimentation among children in the Gambia, and thereby expanding the evidence base of the likely impact of excise taxes on cigarette demand in low-income and middle-income countries. DESIGN A survival analysis using the Gambia 2017 Global Youth Tobacco Survey data. SETTING The Gambia. PARTICIPANTS The survey sample was 12 585 youths, aged 12-17 years, but our analysis was restricted to 11 030 respondents with information on smoking status. PRIMARY AND SECONDARY OUTCOME MEASURES Our outcome variable was smoking experimentation defined as the first time the respondent smoked (at least part of) a cigarette. RESULTS A 1% increase in the price of cigarettes reduces the probability to experiment with smoking by 0.7%. We also found that children are more likely to experiment with smoking if they have at least one smoking parent, friends who smoke and see teachers who smoke. The probability to experiment with cigarette smoking increases with age and is higher among boys than girls. CONCLUSION There is strong evidence that increasing excise taxes can play an effective role in discouraging children from experimenting with cigarette smoking. Considering the relatively low excise tax burden in the Gambia, the government should consider substantially increasing the excise tax burden.
Collapse
Affiliation(s)
- Chengetai Dare
- Research Unit on the Economics of Excisable Products (REEP), School of Economics, University of Cape Town, Rondebosch, Western Cape, South Africa
| | - Bai Cham
- Medical Research Council Unit The Gambia School of Hygiene and Tropical Medicine, Banjul, Gambia
| | - Micheal Kofi Boachie
- SAMRC/Wits Centre for Health Economics and Decision Science -PRICELESS SA, University of the Witwatersrand Faculty of Health Sciences, Johannesburg, South Africa
| | - Zachary Gitonga
- Research Unit on the Economics of Excisable Products (REEP), School of Economics, University of Cape Town, Rondebosch, Western Cape, South Africa
| | - Umberto D'Alessandro
- Medical Research Council Unit The Gambia School of Hygiene and Tropical Medicine, Banjul, Gambia
| | - Corne Walbeek
- Research Unit on the Economics of Excisable Products (REEP), School of Economics, University of Cape Town, Rondebosch, Western Cape, South Africa
| |
Collapse
|
8
|
Cham B, Mdege ND, Bauld L, Britton J, D’Alessandro U. Exposure to Second-Hand Smoke in Public Places and Barriers to the Implementation of Smoke-Free Regulations in The Gambia: A Population-Based Survey. Int J Environ Res Public Health 2021; 18:6263. [PMID: 34207895 PMCID: PMC8296069 DOI: 10.3390/ijerph18126263] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/14/2021] [Accepted: 04/23/2021] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Second-hand smoke is associated with more than 1.2 million deaths per year among non-smokers. Smoking in public places is prohibited in The Gambia but there is no information on the level of exposure to second-hand smoke among adolescents and adults 15-64 years. The aim of this study was to assess the level and predictors of exposure to second-hand smoke in public places and compliance with smoke-free regulations in The Gambia. METHODS A population-based survey was conducted in an established Health and Demographic Surveillance System (HDSS). A total of 4547 participants (15-64 years) from households within the Farafenni HDSS were interviewed at their homes but only 3343 were included in our analysis. Factors associated with exposure to second-hand smoke in public places were assessed by three different multivariable regression models. RESULTS Exposure to tobacco smoke in public places was high (66.1%), and higher in men (79.9%) than women (58.7%). Besides being male, less education, lower household income, urban residence and not aware of smoke-free regulations were strongly associated with exposure to second-hand smoke. CONCLUSION Despite existing smoke-free regulations, reported exposure to second-hand smoke remains high in public places in The Gambia. The Ministry of Health should continue to strengthen their advocacy and sensitization programs to ensure smoke-free regulations are fully implemented. Some population subgroups are at a higher risk of exposure and could be targeted by interventions; and settings where these subgroups are exposed should be targeted by enforcement efforts.
Collapse
Affiliation(s)
- Bai Cham
- Disease Control and Elimination Theme, Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, Atlantic Road, Fajara, P.O. Box 273 Banjul, The Gambia;
| | | | - Linda Bauld
- Usher Institute and SPECTRUM Consortium, College of Medicine and Veterinary Medicine, University of Edinburgh, Edinburgh EH 8 9AG, UK;
| | - John Britton
- UK Centre for Tobacco and Alcohol Studies, Division of Epidemiology and Public Health, University of Nottingham, Nottingham NG5 1PB, UK;
| | - Umberto D’Alessandro
- Disease Control and Elimination Theme, Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, Atlantic Road, Fajara, P.O. Box 273 Banjul, The Gambia;
| |
Collapse
|
9
|
Cham B, Scholes S, Groce NE, Badjie O, Mindell JS. High level of co-occurrence of risk factors for non-communicable diseases among Gambian adults: A national population-based health examination survey. Prev Med 2020; 141:106300. [PMID: 33121964 DOI: 10.1016/j.ypmed.2020.106300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 10/19/2020] [Accepted: 10/22/2020] [Indexed: 10/23/2022]
Abstract
Non-communicable diseases (NCDs) are the leading causes of morbidity and mortality globally. Co-occurrence of risk factors predisposes an individual to NCDs; the burden increases cumulatively with the number of risk factors. Our study aimed to examine the co-occurrence of NCD risk factors among adults in The Gambia. This study is based on a random nationally representative sample of 4111 adults aged 25-64 years (78% response rate) with data collected between January and March 2010 in The Gambia using the WHO STEPwise survey methods. We restricted our analysis to non-pregnant participants with valid information on five NCD risk factors: high blood pressure, smoking, obesity, low fruit and vegetable consumption, and physical inactivity (n = 3000 adults with complete data on all risk factors). We conducted age-adjusted and fully-adjusted gender stratified multinomial logistic regression analysis to identify factors associated with the number of NCD risk factors. More than 90% of adults had at least one risk factor. Only 7% (95% CI: 5.2-9.8) had no risk factor; 22% (95% CI: 19.1-24.9) had at least three. Older age and ethnicity were significantly associated with having three or more risk factors (versus none) among men in the fully adjusted model. Lower education, older age, and urban residence were significantly associated with three or more risk factors (versus none) among women. The burden of NCDs is expected to increase in The Gambia if preventive and control measures are not taken. There should be an integrated approach targeting all risk factors, including wider treatment and control of hypertension.
Collapse
Affiliation(s)
- Bai Cham
- Research Department of Epidemiology and Public Health, UCL (University College London), London WC1E 6BT, United Kingdom; Department of Public Health, University of The Gambia, Brikama Campus, P.O.Box, 3530, Serrekunda, The Gambia; Disease Control and Elimination theme, Medical Research Council Unit, The Gambia, at the London School of Hygiene and Tropical Medicine, Atlantic Road, Fajara, P.O.Box 273, Banjul, The Gambia.
| | - Shaun Scholes
- Research Department of Epidemiology and Public Health, UCL (University College London), London WC1E 6BT, United Kingdom
| | - Nora E Groce
- Research Department of Epidemiology and Public Health, UCL (University College London), London WC1E 6BT, United Kingdom
| | - Omar Badjie
- Non-Communicable Diseases Unit, Ministry of Health, Banjul, The Gambia
| | - Jennifer S Mindell
- Research Department of Epidemiology and Public Health, UCL (University College London), London WC1E 6BT, United Kingdom
| |
Collapse
|
10
|
Cham B, Scholes S, Ng Fat L, Badjie O, Groce NE, Mindell JS. The silent epidemic of obesity in The Gambia: evidence from a nationwide, population-based, cross-sectional health examination survey. BMJ Open 2020; 10:e033882. [PMID: 32487572 PMCID: PMC7265034 DOI: 10.1136/bmjopen-2019-033882] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVES Non-communicable diseases account for 70% of global deaths; 80% occur in low-income and middle-income countries. The rapid increase of obesity in sub-Saharan Africa is a concern. We assessed generalised and abdominal obesity and their associated risk factors among adults in The Gambia. DESIGN Nationwide cross-sectional health examination survey using the WHO STEPwise survey methods. SETTING The Gambia. PARTICIPANTS This study uses secondary analysis of a 2010 nationally representative random sample of adults aged 25-64 years (78% response rate). The target sample size was 5280, and 4111 responded. Analysis was restricted to non-pregnant participants with valid weight and height measurements (n=3533). PRIMARY AND SECONDARY OUTCOME MEASURES The primary outcome variable was generalised obesity, using WHO body mass index (BMI) thresholds. Analyses used non-response weighting and adjusted for the complex survey design. We conducted multinomial logistic regression analysis to identify factors associated with BMI categories. The secondary outcome variable was abdominal obesity, defined as high waist circumference (using the International Diabetes Federation thresholds for Europeans). RESULTS Two-fifths of adults were overweight/obese, with a higher obesity prevalence in women (17%, 95% CI 14.7 to 19.7; men 8%, 95% CI 6.0 to 11.0). 10% of men and 8% of women were underweight. Urban residence (adjusted relative risk ratio 5.8, 95% CI 2.4 to 14.5), higher education (2.3, 1.2 to 4.5), older age, ethnicity, and low fruit and vegetable intake (2.8, 1.1 to 6.8) were strongly associated with obesity among men. Urban residence (4.7, 2.7 to 8.2), higher education (2.6, 1.1 to 6.4), older age and ethnicity were associated with obesity in women. CONCLUSION There is a high burden of overweight/obesity in The Gambia. While obesity rates in rural areas were lower than in urban areas, obesity prevalence was higher among rural residents in this study compared with previous findings. Preventive strategies should be directed at raising awareness, discouraging harmful beliefs on weight, and promoting healthy diets and physical activity.
Collapse
Affiliation(s)
- Bai Cham
- Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, Banjul, The Gambia
- Department of Public Health, University of The Gambia, Brikama, The Gambia
- Research Department of Epidemiology and Public Health, University College London, London, UK
| | - Shaun Scholes
- Research Department of Epidemiology and Public Health, University College London, London, UK
| | - Linda Ng Fat
- Research Department of Epidemiology and Public Health, University College London, London, UK
| | - Omar Badjie
- Non-communicable Diseases Control Unit, Ministry of Health, Banjul, The Gambia
| | - Nora Ellen Groce
- Research Department of Epidemiology and Public Health, University College London, London, UK
| | - Jennifer S Mindell
- Research Department of Epidemiology and Public Health, University College London, London, UK
| |
Collapse
|
11
|
Lyons CE, Schwartz SR, Murray SM, Shannon K, Diouf D, Mothopeng T, Kouanda S, Simplice A, Kouame A, Mnisi Z, Tamoufe U, Phaswana-Mafuya N, Cham B, Drame FM, Aliu Djaló M, Baral S. The role of sex work laws and stigmas in increasing HIV risks among sex workers. Nat Commun 2020; 11:773. [PMID: 32071298 PMCID: PMC7028952 DOI: 10.1038/s41467-020-14593-6] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 01/18/2020] [Indexed: 12/19/2022] Open
Abstract
Globally HIV incidence is slowing, however HIV epidemics among sex workers are stable or increasing in many settings. While laws governing sex work are considered structural determinants of HIV, individual-level data assessing this relationship are limited. In this study, individual-level data are used to assess the relationships of sex work laws and stigmas in increasing HIV risk among female sex workers, and examine the mechanisms by which stigma affects HIV across diverse legal contexts in countries across sub-Saharan Africa. Interviewer-administered socio-behavioral questionnaires and biological testing were conducted with 7259 female sex workers between 2011-2018 across 10 sub-Saharan African countries. These data suggest that increasingly punitive and non-protective laws are associated with prevalent HIV infection and that stigmas and sex work laws may synergistically increase HIV risks. Taken together, these data highlight the fundamental role of evidence-based and human-rights affirming policies towards sex work as part of an effective HIV response.
Collapse
Affiliation(s)
- Carrie E Lyons
- Center for Public Health and Human Rights, Department of Epidemiology, Johns Hopkins School of Public Health, 615 N Wolfe St, Baltimore, MD, 21205, USA.
| | - Sheree R Schwartz
- Center for Public Health and Human Rights, Department of Epidemiology, Johns Hopkins School of Public Health, 615 N Wolfe St, Baltimore, MD, 21205, USA
| | - Sarah M Murray
- Department of Mental Health, Johns Hopkins School of Public Health, Hampton House 624 N. Broadway 8th Floor, Baltimore, MD, 21205, USA
| | - Kate Shannon
- Centre for Gender & Sexual Health Equity, University of British Columbia, 1081 Burrard St, Vancouver, BC, Canada
| | - Daouda Diouf
- Enda Santé, Senegal, 56 Cité Comico VDN, B.P, 3370, Dakar, Senegal
| | | | - Seni Kouanda
- Institut de Recherche en Sciences de la Santé, Ouagadougou, Burkina Faso, Institut Africain de Santé Publique, 12 BP 199, Ouagadougou, Burkina Faso
| | | | - Abo Kouame
- Ministère de la Sante et de l'Hygiène Publique, Abidjan, Côte d'Ivoire
| | - Zandile Mnisi
- Health Research Department, Strategic Information Division, Ministry of Health, Cooper Centre Office 106, Mbabane, Eswatini
| | - Ubald Tamoufe
- Metabiota. Avenue Mvog-Fouda Ada, Av 1.085, Carrefour Intendance BP, 15939, Yaoundé, Cameroon
| | - Nancy Phaswana-Mafuya
- DVC Research and Innovation Office, North-West University, Potchefstroom Campus, Private Bag X6001 Potchefstroom, 2520, Potchefstroom, South Africa
| | - Bai Cham
- Actionaid, Banjul The Gambia, MDI Road, Kanifing South PMB 450, Serrekunda PO Box 725, Banjul, The Gambia
| | - Fatou M Drame
- Enda Santé, Senegal, 56 Cité Comico VDN, B.P, 3370, Dakar, Senegal
- Gaston Berger University, Department of Geography, School of Social Sciences. BP: 234 - Saint-Louis, Nationale 2, route de Ngallèle, St. Louis, Senegal
| | - Mamadú Aliu Djaló
- Enda Santé, Guiné-Bissau. Bairro Santa Luzia, Rua s/n, CP 1041, Bissau, Guinea-Bissau
| | - Stefan Baral
- Center for Public Health and Human Rights, Department of Epidemiology, Johns Hopkins School of Public Health, 615 N Wolfe St, Baltimore, MD, 21205, USA
| |
Collapse
|
12
|
Cham B, Scholes S, Ng Fat L, Badjie O, Mindell JS. Burden of hypertension in The Gambia: evidence from a national World Health Organization (WHO) STEP survey. Int J Epidemiol 2018; 47:860-871. [PMID: 29394353 DOI: 10.1093/ije/dyx279] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 12/04/2017] [Accepted: 01/15/2018] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Non-communicable diseases are increasing in sub-Saharan Africa and are estimated to account for 32% of adult deaths in The Gambia. Worldwide, prevalence of hypertension is highest in the African region (46%) and a very high proportion is undiagnosed. This study examined diagnosed and undiagnosed hypertension in The Gambian adult population. METHODS Data were collected in 2010 from a nationally representative random sample of 4111 adults aged 25-64 years, using the World Health Organization STEPwise cross-sectional survey methods. Analyses were restricted to non-pregnant participants with three valid blood pressure measurements (n = 3573). We conducted gender-stratified univariate and multivariate regression analyses to identify the strongest sociodemographic, behavioural and biological risk factors associated with hypertension. RESULTS Almost one-third of adults were hypertensive; a high proportion were undiagnosed, particularly among men (86% of men vs 71% of women with hypertension, P < 0.001). Rural and semi-urban residents and overweight/obese persons had increased odds of hypertension. Compared with urban residents, participants from one of the most rural regions had higher odds of hypertension among both men [adjusted odds ratio (AOR) 3.2; 95% CI: 1.6-6.4] and women (AOR 2.5; 95% CI: 1.3-4.6). Other factors strongly associated with hypertension in multivariate analyses were age, smoking, physical inactivity and ethnicity. CONCLUSIONS Rural and semi-urban residence were strongly associated with hypertension, contrary to what has been found in similar studies in sub-Saharan Africa. Intervention to reduce the burden of hypertension in The Gambia could be further targeted towards rural areas.
Collapse
Affiliation(s)
- Bai Cham
- University College London, Department of Epidemiology and Public Health, London, UK.,University of The Gambia, Department of Public Health, Brikama Campus, P.O. Box 3530, Serrekunda, The Gambia and
| | - Shaun Scholes
- University College London, Department of Epidemiology and Public Health, London, UK
| | - Linda Ng Fat
- University College London, Department of Epidemiology and Public Health, London, UK
| | - Omar Badjie
- Non-Communicable Diseases Unit, Ministry of Health and Social Welfare, Banjul, The Gambia
| | - Jennifer S Mindell
- University College London, Department of Epidemiology and Public Health, London, UK
| |
Collapse
|
13
|
Van der Niepen P, Caes F, Cham B, Dupont A, Ebinger G. Fibromuscular Dysplasia of the Internal Carotid Artery: an Cause of Reversible Ischemic Neurologic Disease. Acta Clin Belg 2016. [DOI: 10.1080/22953337.1986.11719152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
14
|
Tan EC, Lim E, Cham B, Knight L, Ng I. Partial trisomy 3p and partial monosomy 11q associated with atrial septal defect, cleft palate, and developmental delay: a case report. Cytogenet Genome Res 2011; 134:319-24. [PMID: 21654159 DOI: 10.1159/000328835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/14/2011] [Indexed: 11/19/2022] Open
Abstract
Unbalanced translocation involving both chromosome 3p duplication and 11q deletion in the same patient is extremely rare; only 1 live-born case was reported previously. This karyotype was also detected during prenatal diagnosis of 2 different pregnancies in a Taiwanese family which were both terminated. In all 3 cases, only standard karyotyping was done to detect the abnormal karyotypes. Here, we report a 4-year-old boy with cleft palate, atrial septal defect, and hypotonia with gross and fine motor delay. Oligonucleotide-based array comparative genomic hybridization showed copy number gain from 3pter to 3p24.2 (approximately 24.5 Mb) and copy number loss from 11q25 to 11qter (approximately 5.8 Mb). This de novo unbalanced translocation event involving a terminal 3p duplication and a terminal 11q deletion provides candidate genes for further investigation of dosage effect leading to the patient's multiple phenotypic abnormalities. Genotype-phenotype correlation is difficult to make in this case due to the large number of genes involved. However, the description of such cases together with precise gene-level mapping of chromosomal breakpoints will add to further refinement of candidate genes to be investigated for terminal imbalances in 3p and 11q when more similar cases are reported.
Collapse
Affiliation(s)
- E-C Tan
- KK Research Centre, KK Women's and Children's Hospital, Singapore. tanec @ bigfoot.com
| | | | | | | | | |
Collapse
|
15
|
Bowman RJ, Jatta B, Cham B, Bailey RL, Faal H, Myatt M, Foster A, Johnson GJ. Natural history of trachomatous scarring in The Gambia: results of a 12-year longitudinal follow-up. Ophthalmology 2001; 108:2219-24. [PMID: 11733262 DOI: 10.1016/s0161-6420(01)00645-5] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
PURPOSE The sight-threatening complications of trachoma are trichiasis and corneal opacity, and these remain the world's most common cause of preventable blindness. The aim of the study was to investigate the rate of progression of trachomatous conjunctival scarring to trichiasis and corneal opacity and to investigate risk factors for such progression. DESIGN A 12-year, longitudinal study of the incidence and risk factors for the development of trichiasis and corneal opacity in a cohort of patients initially identified with trachomatous scarring in The Gambia. PARTICIPANTS Six hundred thirty-nine subjects with some degree of trachomatous scarring were identified from the 1986 survey, and attempts were made to trace all these subjects. METHODS Successfully traced subjects were interviewed, examined, and graded for trachoma. MAIN OUTCOME MEASURES (1) Twelve-year rates of progression. (2) Risk factors for progression of disease. RESULTS Three hundred twenty-six of six hundred thirty-nine (51%) subjects were traced and examined, 108 (17%) had died, and 205 (32%) were lost to follow-up. After 12 years, 6.4% (95% confidence interval [CI], 4.0-9.97) of scarred subjects had trichiasis develop, 5.96% (95% CI, 3.67-9.42) had corneal opacity develop, 16.51% (95% CI, 12.71-21.13) had visual impairment/blindness develop, and 2.5% (95% CI, 1.2-5.0) had corneal visual impairment/blindness develop. Mandinka ethnicity was a risk factor for trichiasis (odds ratio [OR], 4.3; 95% CI, 1.3-14.4), and trichiasis at baseline was a risk factor for corneal opacity (OR, 8.4; 95% CI, 1.8-39.2). History of lid surgery for trichiasis was associated with corneal opacity at follow-up (OR, 4.4; 95%CI, 1.4-14.0). Older age was a significant risk factor for development of trichiasis, corneal opacity, and visual loss (OR, 1.07; 95% CI, 1.01-1.12). Bilateral cataract was present in 40% of traced subjects and was associated with the incidence of visual impairment/blindness (OR, 9.4; 95%CI, 4.5-19.6) CONCLUSIONS This is the first study to demonstrate the link between trichiasis and future corneal opacity, and it provides the rationale for performing lid rotation surgery on patients with trichiasis who do not yet have corneal opacity. The association between corneal opacity at follow-up and previous surgery among trichiasis patients suggests late presentation as a problem. The planning of surgical services will be aided by the incidence figures generated by this study.
Collapse
Affiliation(s)
- R J Bowman
- International Centre for Eye Health, London, England, UK
| | | | | | | | | | | | | | | |
Collapse
|
16
|
Jawara M, Pinder M, Cham B, Walraven G, Rowley J. Comparison of deltamethrin tablet formulation with liquid deltamethrin and permethrin for bednet treatment in The Gambia. Trop Med Int Health 2001; 6:309-16. [PMID: 11348522 DOI: 10.1046/j.1365-3156.2001.00706.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The study aim was to compare three formulations, tablet deltamethrin, liquid deltamethrin and liquid permethrin, for their impact on vector behaviour and persistence. Product acceptance, perceived side-effects and user's perceptions of effectiveness were also investigated. At the beginning of the 1998 rainy season, 255 nets in a Gambian village were dipped in one of the three insecticides. Chemical residue analysis immediately after dipping showed that the target doses were reached for the liquid insecticides, but tablet deltamethrin deposited significantly less. Insecticide persistence at 5 months, however, was highest for the tablet formulation. Susceptibility tests established that Anophelines in this area were sensitive to both insecticides. All three formulations appeared effective as very few live Anophelines, or other mosquitoes, were caught under the treated nets. This conclusion was supported by the bioassay data with both deltamethrin formulations giving over 90% mortality soon after dipping and at 3 months, and at 5 months 70.8 and 79.6% were obtained for deltametrin liquid and tablet, respectively. Permethrin appeared less effective at all times (72.4, 86.8, 59.0%). There were no serious side-effects reported by the villagers following dipping. All three treatments were perceived as effective by the majority (92%) of users and most (93%) wanted to use the insecticide again. Deltamethrin tablets thus appear as good as permethrin for treating bednets in The Gambia. In addition, a tablet formulation is considerable easier to pack and distribute.
Collapse
Affiliation(s)
- M Jawara
- Medical Research Council Laboratories, Fajara, P.O. Box 273, Banjul, The Gambia.
| | | | | | | | | |
Collapse
|
17
|
Freedman MH, Bonilla MA, Fier C, Bolyard AA, Scarlata D, Boxer LA, Brown S, Cham B, Kannourakis G, Kinsey SE, Mori PG, Cottle T, Welte K, Dale DC. Myelodysplasia syndrome and acute myeloid leukemia in patients with congenital neutropenia receiving G-CSF therapy. Blood 2000; 96:429-36. [PMID: 10887102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Abstract
Granulocyte colony-stimulating factor (G-CSF) has had a major impact on management of "severe chronic neutropenia," a collective term referring to congenital, idiopathic, or cyclic neutropenia. Almost all patients respond to G-CSF with increased neutrophils, reduced infections, and improved survival. Some responders with congenital neutropenia have developed myelodysplastic syndrome and acute myeloblastic leukemia (MDS/AML), which raises the question of the role of G-CSF in pathogenesis. The Severe Chronic Neutropenia International Registry (SCNIR), Seattle, WA, has data on 696 neutropenic patients, including 352 patients with congenital neutropenia, treated with G-CSF from 1987 to present. Treatment and patient demographic data were analyzed. The 352 congenital patients were observed for a mean of 6 years (range, 0.1-11 years) while being treated. Of these patients, 31 developed MDS/AML, for a crude rate of malignant transformation of nearly 9%. None of the 344 patients with idiopathic or cyclic neutropenia developed MDS/AML. Transformation was associated with acquired marrow cytogenetic clonal changes: 18 patients developed a partial or complete loss of chromosome 7, and 9 patients manifested abnormalities of chromosome 21 (usually trisomy 21). For each yearly treatment interval, the annual rate of MDS/AML development was less than 2%. No significant relationships between age at onset of MDS/AML and patient gender, G-CSF dose, or treatment duration were found (P >.15). In addition to the 31 patients who developed MDS/AML, the SCNIR also has data on 9 additional neutropenic patients whose bone marrow studies show cytogenetic clonal changes but the patients are without transformation to MDS/AML. Although our data does not support a cause-and-effect relationship between development of MDS/AML and G-CSF therapy or other patient demographics, we cannot exclude a direct contribution of G-CSF in the pathogenesis of MDS/AML. This issue is unclear because MDS/AML was not seen in cyclic or idiopathic neutropenia. Improved survival of congenital neutropenia patients receiving G-CSF therapy may allow time for the expression of the leukemic predisposition that characterizes the natural history of these disorders. However, other factors related to G-CSF may also be operative in the setting of congenital neutropenia. (Blood. 2000;96:429-436)
Collapse
Affiliation(s)
- M H Freedman
- Severe Chronic Neutropenia International Registry, University of Washington, and the University of Washington Department of Medicine, Seattle, WA, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
D'Alessandro U, Olaleye B, Langerock P, Bennett S, Cham K, Cham B, Greenwood BM. The Gambian National Impregnated Bed Net Programme: evaluation of effectiveness by means of case-control studies. Trans R Soc Trop Med Hyg 1997; 91:638-42. [PMID: 9509168 DOI: 10.1016/s0035-9203(97)90502-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Two case-control studies, one on mortality and the other on malaria morbidity, were carried out in order to evaluate the impact of the Gambian National Insecticide Bed Net Programme during the second year of intervention and to explore the feasibility of such a study for the evaluation of programme effectiveness. For the mortality study, children 1-9 years old who died during the 1993 rainy season were matched by age and sex with 2 healthy controls from the same village. For the morbidity study, children 1-9 years old attending Fatoto or Jahalia Health Centres in The Gambia and who had fever and parasitaemia > or = 5000/microL were matched by age with a child attending the health centres without fever or parasitaemia. An additional healthy control was recruited from the case's village. No impact of insecticide-treated bed nets on mortality was detected and this was in keeping with the results obtained by prospective surveillance. A protective effect of insecticide-treated nets on malaria morbidity was detected when cases were compared with controls recruited at the health centres. However, this disappeared when cases were compared with controls recruited from the cases' villages. The mortality case-control study suggested that reducing the time between onset of disease and treatment may have an important impact on childhood mortality. In order to calculate programme cost-effectiveness, important for informed resource allocations to be made by health managers, it is essential to obtain evidence of effectiveness. This can be done by means of case-control studies, which are easier to carry out and require fewer resources than prospective surveillance. Nevertheless, it is necessary to be conscious of their pitfalls, particularly of the bias involved in the choice of cases and controls. The measurement of insecticide on the nets of the cases or controls is essential for such studies.
Collapse
Affiliation(s)
- U D'Alessandro
- Department of Parasitology, Prince Leopold Institute of Tropical Medicine, Antwerp, Belgium. /be
| | | | | | | | | | | | | |
Collapse
|
19
|
Cham MK, Olaleye B, D'Alessandro U, Aikins M, Cham B, Maine N, Williams LA, Mills A, Greenwood BM. The impact of charging for insecticide on the Gambian National Impregnated Bednet Programme. Health Policy Plan 1997; 12:240-7. [PMID: 10173405 DOI: 10.1093/heapol/12.3.240] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
During the second year of the Gambian National Impregnated Bednet Programme (NIBP) charges for insecticide ($0.50 per net) were introduced into the half of the primary health care villages in the country where insecticide have been provided free of charge the previous year. Free insecticide was provided in the remaining villages that had acted as controls during the previous year. In villages where insecticide was provided free, 77% of nets were treated with insecticide. In contrast, in villages where charges were made coverage was only 14%. During the first year of the NIBP, mortality in children was significantly lower in villages where insecticide was provided free than in the control villages. Introduction of a charge for insecticide into the first group of villages and the provision of free insecticide in the latter abolished this difference. The cash income of rural Gambians is very limited and payment of even $2-3 for insecticide treatment for all the bednets in a household represents a substantial outlay. Further education on the benefits of treatment of nets and/or the provision of cheaper insecticide will be required before the full benefits of this powerful new malaria control measure can be fully realised in the Gambia.
Collapse
Affiliation(s)
- M K Cham
- MRC Laboratories, Fajara, Banjul, The Gambia
| | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Van Camp G, Liebens I, Silance PG, Cham B, Vandenbossche JL. Ruptured aortic dissection into the left atrium which presented as congestive heart failure and was diagnosed by transoesophageal echocardiography. Heart 1994; 72:400-2. [PMID: 7833202 PMCID: PMC1025555 DOI: 10.1136/hrt.72.4.400] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
A 72 year old man was admitted with severe dyspnoea. Ten days before he had had intense thoracic pain with loss of consciousness that was followed by increased dyspnoea. A continuous murmur was heard in the precordial and the left infrascapular regions. Lung auscultation showed stasis over the lower half of both lungs. Transthoracic echocardiography showed a bicuspid aortic valve and a dissection of the proximal aorta, which was considerably enlarged. Transoesophageal echocardiography confirmed dissection of the proximal aorta and showed a communication from the false lumen of the aortic dissection to the left atrium; and colour flow Doppler showed a continuous shunt to the left atrium. After transoesophageal echocardiography the patient had emergency surgical repair, which was successful. He had no complications in the post-operative period.
Collapse
Affiliation(s)
- G Van Camp
- Department of Cardiology, St Pierre University Hospital, Brussels, Belgium
| | | | | | | | | |
Collapse
|
21
|
Cham B, Brunet AP, Watel A, Ivanoff I, Peeters L, Lambert T. [Prosthetic duplication of the ascending aorta]. Presse Med 1993; 22:1267-9. [PMID: 8259354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
A simple implantation technique for multiple bypass of the ascending aorta with cervico-encephalic and infradiaphragmatic targets is reported. A conduit made by termino-terminal suture of two bifurcated grafts is anastomosed latero-laterally to the ascending aorta. The procedure is easy to perform and provides a suitable trajectory to the grafts.
Collapse
Affiliation(s)
- B Cham
- European Heart Centre, Bruxelles, Belgique
| | | | | | | | | | | |
Collapse
|
22
|
Nishibori M, Cham B, McNicol A, Shalev A, Jain N, Gerrard JM. The protein CD63 is in platelet dense granules, is deficient in a patient with Hermansky-Pudlak syndrome, and appears identical to granulophysin. J Clin Invest 1993; 91:1775-82. [PMID: 7682577 PMCID: PMC288158 DOI: 10.1172/jci116388] [Citation(s) in RCA: 97] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
The levels and expression of the proteins CD63 and granulophysin in platelets from control and from a Hermansky-Pudlak syndrome subject (a condition characterized by dense granule and lysosomal deficiencies and the accumulation of ceroid-like material in reticuloendothelial cells) were examined. Immunofluorescence studies indicated that anti-CD63 and anti-granulophysin antibodies recognized similar numbers of granules; coapplication of antibodies did not identify more granules than the individual antibodies. Significantly fewer granules were recognized in Hermansky-Pudlak syndrome platelets than in control using either antibody. Immunoblotting studies demonstrated that anti-CD63 and anti-granulophysin antibodies apparently recognize the same protein, which was deficient in Hermansky-Pudlak platelets. Analysis by fluorescence-activated cell sorter (FACS) showed biphasic expression of CD63 and granulophysin after thrombin stimulation of control but not Hermansky-Pudlak platelets. Anti-CD63 effectively blocked detection of the protein by anti-granulophysin using immunofluorescence, ELISA, immunoblotting, and FACS analysis. Amino-terminal sequencing over the first 37 amino acids revealed that granulophysin was homologous to CD63, melanoma antigen ME491, and pltgp40. These results suggest that granulophysin and CD63 are possibly identical proteins. This is the first report of a protein present in platelet dense granules, lysosomes, and melanocytes, but deficient in a patient with Hermansky-Pudlak syndrome.
Collapse
Affiliation(s)
- M Nishibori
- Department of Paediatrics, University of Manitoba, Winnipeg, Canada
| | | | | | | | | | | |
Collapse
|
23
|
De Schepper J, Hachimi-Idrissi S, Cham B, Bougatef A, De Wolf D, Desprechins B, Sacre L. Diagnosis and management of catheter-related infected intracardiac thrombosis in premature infants. Am J Perinatol 1993; 10:39-42. [PMID: 8442797 DOI: 10.1055/s-2007-994698] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Infected right atrial thrombosis is an uncommon but severe complication of the use of central indwelling catheters in children. Massive thrombi around a right atrial catheter were seen in two critically ill premature infants after 3 weeks of parenteral nutrition. A catheter-related sepsis had previously occurred and had been treated by antibiotics. Subsequently, protracted thrombocytopenia, fluctuating hepatomegaly, and increasing respiratory distress were found in both cases. A right atrial mass was detected by 2 dimensional echocardiography. Cardiotomies for removal of the infected thrombus were performed with success in both cases. In one infant, weighing only 900 gm, surgical removal was accomplished with the aid of inflow stasis. Premature infants with catheter-related sepsis appear at greater risk for intracardiac thrombosis and should undergo echocardiography as part of their evaluation. Infected atrial thrombi can be safely removed by cardiotomy even in the very small premature infant.
Collapse
Affiliation(s)
- J De Schepper
- Department of Pediatrics, Academisch Ziekenhuis, Vrije Universiteit, Brussels, Belgium
| | | | | | | | | | | | | |
Collapse
|
24
|
Israels SJ, Gerrard JM, Jacques YV, McNicol A, Cham B, Nishibori M, Bainton DF. Platelet dense granule membranes contain both granulophysin and P-selectin (GMP-140). Blood 1992; 80:143-52. [PMID: 1377048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
We recently reported the characterization of a platelet granule membrane protein of molecular weight (mol wt) 40,000 called granulophysin (Gerrard et al: Blood 77:101, 1991), identified by a monoclonal antibody (MoAb D545) raised to purified dense granule membranes. Using immunoelectron-microscopic techniques on frozen thin sections, this protein was localized in resting and thrombin-stimulated platelets. In resting platelets, labeled with antigranulophysin antibodies and immunogold probes, label was localized to the membranes of one or two clear granules per platelet thin section. D545 also labeled dense granules in permeabilized whole platelets and isolated dense granule preparations examined by whole-mount techniques. Expression of granulophysin on the platelet surface paralleled dense granule secretion as measured by 14C-serotonin release under conditions in which lysosomal granule release, as measured by beta-glucuronidase secretion, was less than 5%. After thrombin stimulation, both the surface-connected canalicular system and the plasma membrane were labeled, demonstrating redistribution of granulophysin associated with degranulation. Double labeling experiments with D545 and antibodies to the alpha-granule membrane protein, P-selectin, demonstrated labeling of both P-selectin and granulophysin on dense granule membranes. Distribution of both proteins on the plasma membrane after platelet stimulation was similar. The results demonstrate that granulophysin is localized to the dense granules of platelets and is redistributed to the plasma membrane after platelet activation.
Collapse
Affiliation(s)
- S J Israels
- Department of Paediatrics, University of Manitoba, Winnipeg, Canada
| | | | | | | | | | | | | |
Collapse
|
25
|
Abstract
A stricture of the right main bronchus developed in an 1100 gm premature (first delivered twin female) infant being mechanically ventilated for approximately 1 month. The stricture resolved with treatment consisting of three consecutive daily obturations with angiocatheters avoiding the use of a balloon inflation technique provoking a local dilation. The catheters were placed with a guide wire under fluoroscopic control. The clinical protocol advanced for the dilation of acquired bronchial stenosis was well tolerated by the patient. A 9-month clinical radiologic review confirmed normal pulmonary structures and functions. Catheter dilation is described as a new technique for treatment of bronchial stenosis in the very small infant.
Collapse
Affiliation(s)
- P Lenoir
- Department of Pediatrics, AZ-Vrije Universiteit Brussel, Belgium
| | | | | | | | | | | |
Collapse
|
26
|
Cham B, Daunter B, Evans R. Curaderm--or is it? Med J Aust 1990; 152:329-30. [PMID: 2353968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
27
|
Affiliation(s)
- B. Cham
- Cura Nominees Pty Ltd772 Upper Brookfield RoadUpper BrookfieldQLD4069
| | - B. Daunter
- Department of Obstetrics and GynaecologyUniversity of Queensland, Royal Brisbane HospitalHerstonQLD4029
| | - R. Evans
- Shop 4, Acacia ArcadeAcacia Ridge Shopping CentreAcacia RidgeQLD4110
| |
Collapse
|
28
|
De Boeck H, Vincken W, Cham B, Opdecam P. Diaphragmatic pacing in the treatment of chronic respiratory insufficiency of quadriplegic patients. Acta Chir Belg 1989; 89:276-80. [PMID: 2816210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Following our experience with diaphragmatic pacing in 2 quadriplegic patients with bilateral diaphragmatic paralysis, we here present the indication for and the surgical technique of bilateral implantation of a diaphragmatic pacemaker. This mode of artificial ventilation appears to be superior to positive pressure ventilation for longterm ventilatory assistance of these patients.
Collapse
Affiliation(s)
- H De Boeck
- Department of Orthopedics and Traumatology, Academic Hospital V.U.B., Brussels, Belgium
| | | | | | | |
Collapse
|
29
|
Caes F, Duinslaeger L, Cham B, Welch W. Diagnostic and therapeutic value of thoracotomy in advanced pulmonary neoplasms. Acta Chir Belg 1989; 89:149-52. [PMID: 2800848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
This study analyses retrospectively 100 consecutive thoracotomies performed for lung cancer before end 1986. Chest CT scan assessed mediastinal lymph node disease, chest wall invasion and mediastinal invasion, with an overall accuracy of 75, 93 and 91 per cent respectively; mediastinal lymph node disease was significantly more underestimated in the stage III group. Characteristics, type of surgical and adjuvant therapy and follow-up were analysed in the T3 (16 patients) and the N2 (18 patients) group. Complete resection was possible in only a minority of the cases: 3 in the T3 group and one in the N2 group. Of the T3 group, 3 patients have survived more than 3 years and 3 are actually still alive. Of the N2 group, only 2 patients are still alive. Most deaths were due to generalization of the disease.
Collapse
Affiliation(s)
- F Caes
- Department of Thoracic and Cardiovascular Surgery, Academic Hospital, Vrije Universiteit Brussel, Belgium
| | | | | | | |
Collapse
|
30
|
Caes F, Cham B, Sacre J, Ponikelsky V, Vloeberghs M, Welch W. A patient with two chronic posttraumatic aneurysms of the thoracic aorta. Thorac Cardiovasc Surg 1989; 37:105-6. [PMID: 2727980 DOI: 10.1055/s-2007-1013918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A case of successful replacement of two coexistent chronic post-traumatic aneurysms of the thoracic aorta is presented. Presumably, these aneurysms at the aortic isthmus and the descending thoracic aorta resulted from two different deceleration traumas.
Collapse
Affiliation(s)
- F Caes
- Department of Thoracic and Cardiovascular Surgery, Academisch Ziekenhuis V.U.B
| | | | | | | | | | | |
Collapse
|
31
|
von Kemp K, Herregodts P, Duynslaeger L, Deleu D, Bruyland M, Cham B. Muscular fibrosis due to chronic intramuscular administration of narcotic analgesics. Acta Clin Belg 1989; 44:383-7. [PMID: 2629447 DOI: 10.1080/17843286.1989.11718047] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Chronic intramuscular injections, particularly of narcotic analgesics, are an uncommon cause of myopathy. We report two patients with pentazocine- and meperidine-related myopathy. Narcotic-induced muscular fibrosis and contractures must be considered in patients with a pattern of muscle involvement that does not conform to any recognized myopathy, but allows for self-administration of injections. Trauma due to needle puncture, repetitive infections and a local myotoxic effect of the drugs probably contribute to these lesions.
Collapse
|
32
|
Caes F, Cham B, Welch W. Technique of dorsal penile artery bypass graft with saphenous vein for arteriogenic impotence. Arch Ital Urol Nefrol Androl 1988; 60:59-61. [PMID: 2975835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
33
|
Vloeberghs M, Duinslaeger M, Van den Brande P, Cham B, Welch W. Posttraumatic rupture of the thoracic aorta. Acta Chir Belg 1988; 88:33-8. [PMID: 3376665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Ten patients with traumatic lesions of the thoracic aorta were seen in a hospital. Most were victims of traffic accidents and presented severe associated lesions along with their vascular trauma. We found that the vascular injuries were clinically manifest in only a minority of patients. The remaining ruptures were discovered through CT-scanning of the mediastinum or angiography. We believe that in every major trauma victim aortic lesions should be actively sought for by complimentary examinations to guarantee maximum survival of the patients.
Collapse
Affiliation(s)
- M Vloeberghs
- Department of Thoracic and Cardiovascular Surgery, Akademisch Ziekenhuis, Vrije Universiteit Brussel
| | | | | | | | | |
Collapse
|
34
|
Caes F, Vierendeels T, Janssens-Willem E, Cham B, Welch W. Comparison of auscultation, continuous wave Doppler imaging, intravenous digital subtraction angiography and conventional angiography in diagnosis of carotid artery disease. Angiology 1987; 38:799-806. [PMID: 3318569 DOI: 10.1177/000331978703801101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The reliability of auscultation, continuous wave (CW) Doppler imaging, and intravenous digital subtraction angiography (IV DSA) in the assessment of carotid artery disease has been evaluated in comparison with conventional angiography in 30 patients. With auscultation, specificity and sensitivity for internal carotid artery (ICA) stenosis of 50% or more were 81% and 67% respectively. CW Doppler imaging detected ICA stenosis of 50% or more with a sensitivity of 83% and a specificity of 92% and ICA occlusion with a sensitivity of 60%. The specificity of IV DSA was 95% and the sensitivity for ICA stenosis of 50% or more and ICA occlusion were 75% and 100% respectively. Combining CW Doppler and IV DSA findings raised sensitivity for ICA stenosis of 50% or more and ICA occlusion to 89% and 100% respectively and specificity to 95%. The combination of CW Doppler and IV DSA is a safe and accurate test battery in the detection and categorization of carotid disease.
Collapse
Affiliation(s)
- F Caes
- Department of Thoracic and Cardiovascular Surgery, Academic Hospital, Vrije Universiteit Brussel, Belgium
| | | | | | | | | |
Collapse
|
35
|
|
36
|
Caes F, Cham B, Van den Brande P, Welch W. Transaxillary thoracotomy for treatment of spontaneous pneumothorax. Acta Chir Belg 1987; 87:137-41. [PMID: 3618058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
This study reports the retrospective analysis of operative treatment of 20 cases of spontaneous pneumothorax during the last 4 years. Surgical indications included recurrence, recollapse of the lung on clamping the chest tube, nonexpansion of the lung despite adequate drainage or persistent air leak, and giant bulla. A transaxillary thoracotomy was used in all cases to treat sites of air leak and subpleural blebs by resection (14 cases) or oversutering (4 cases) combined with pleural abrasion (19 cases) or apical pleurectomy (1 case). This approach has met with excellent results without major morbidity or mortality.
Collapse
|
37
|
Abstract
The abdominal transphrenic approach enabled us to repair a left lateral pericardial rupture on a polytrauma patient who also had a rupture of the spleen and a retroperitoneal hemorrhage. A pericardial exploration was necessary because of a sudden upper venous congestion syndrome during operation, suggestive of a cardiac tamponade.
Collapse
|
38
|
Abstract
We report two cases of enlargement of the posterior mediastinal lymph nodes due to sarcoidosis. Bilateral hilar enlargement, pulmonary parenchymal involvement, or extrathoracic manifestations of sarcoidosis were absent. A diagnostic thoracotomy had to be performed in both instances.
Collapse
|
39
|
Deruyter L, Caes F, Van den Brande P, Cham B, Welch W. Femorofemoral bypass grafting in high-risk patients. Acta Chir Belg 1986; 86:271-6. [PMID: 3788373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A total of 37 extra-anatomic femorofemoral bypasses were inserted for severe unilateral iliac artery stenosis or a thrombosed graft limb of an aorto-bifemoral bifurcation graft. All patients were severely debilitated and at high risk for direct aorto-iliac reconstruction. 30% suffered severe claudication; 70% had ischemic restpain or trophic lesions. 43% died during a mean follow-up period of 17 months. This study demonstrates that the extra-anatomic femoro-femoral bypass procedure is an effective alternative therapeutic modality for high-risk patients with an acceptable operative mortality (5.4%) and morbidity to improve the quality of life.
Collapse
|
40
|
Caes F, Van der Niepen P, Cham B, Welch W. Fibromuscular dysplasia of the internal carotid artery. Acta Chir Belg 1986; 86:153-7. [PMID: 3739510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An observation on symptomatic fibromuscular dysplasia of the internal carotid artery, surgically treated by graduated internal dilatation is presented. Fibromuscular dysplasia is a segmental, nonatheromatous disease of small to medium-sized arteries, affecting mainly renal arteries. Involvement of the internal carotid artery is often an incidental angiographic finding in asymptomatic patients, but can be associated with specific neurologic symptoms requiring surgical treatment. The histopathologic character, the pathogenesis, the clinical manifestation, the diagnosis and the therapeutic possibilities of this affection are discussed.
Collapse
|
41
|
Block P, Schandevyl W, Cham B, Welch W, Dewilde P, Demoor D, Taeymans Y, Huyghens L, Corne L, Bossuyt A. Recurrent pulmonary embolism: importance, diagnosis, management and prevention. Acta Chir Belg 1986; 86:109-17. [PMID: 3521167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Pulmonary emboli, even small, cause irreparable lung damage. Recurrent pulmonary emboli further increase the amount of non functional lung tissue and may result in incapacitating respiratory disease or death. It is therefore mandatory that the disease be correctly diagnosed and adequately treated. As prevention is better than cure, every patient presenting with clinical signs of deep venous thrombosis (DVT) should be correctly explored. The site and size of thrombosis must be visualized preferably with contrast venography with imaging of the veins of the limbs, iliac veins and vena cava. Risk factors such as obesity, immobilization etc. must be taken into account. Underlying disease such as heart disease and venous insufficiency must be treated. Malignancy must be looked for as in a recent series of patients with primary DVT which were studied, 15% presented with an up till then unknown malignant disease. In patients presenting with recurrent DVT this percentage rose to 20%. When a patient presents with DVT of the femoro-iliac vena cava axis, aggressive treatment must be adopted. Fibrinolysis or if this is contra-indicated, thrombectomy will be used. A vena cava filter may be necessary and longterm anticoagulation is mandatory. The same rationale is applicable in cases of pulmonary embolus whether it is a primary event or a recurrence.
Collapse
|
42
|
Van der Niepen P, Caes F, Cham B, Dupont AG, Ebinger G. Fibromuscular dysplasia of the internal carotid artery: an unusual cause of reversible ischemic neurologic disease. Acta Clin Belg 1986; 41:199-202. [PMID: 3766038 DOI: 10.1080/22953337.1986.11719148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
43
|
Caes F, Cham B, Van den Brande P, Welch W. Small artery syndrome in women. Surg Gynecol Obstet 1985; 161:165-70. [PMID: 3161193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
During the past four years, 106 women underwent aortography and peripheral runoff studies for peripheral vascular disease. Eleven patients presented with "small vessels" and were selected for this study. They were significantly younger than the rest of the group (a mean age of 52 versus 66 years). A clear history of claudication was elicited in all patients. Rest pain was present in four patients. Most patients were small in stature but not obese. Weak or absent femoral and distal pulses and abdominal or femoral bruits were common. Angiography demonstrated a narrow infrarenal aorta, narrow iliac and common femoral arteries and a straight course of iliac arteries. Atherosclerotic lesions involved mainly the aortoiliac segment, but were confined to the superficial femoral artery in two patients. Reconstruction was achieved by endarterectomy or transluminal angioplasty in segmental aortoiliac disease and aortobifemoral or aortobi-iliac graft in diffuse disease. Femorpopliteal or iliopopliteal graft or lumbar sympathectomy was performed in patients with significant femoral disease. In one patient, an acutely occluded femoral segment was replaced by a venous interposition graft. Two patients were treated conservatively. There were no operative deaths. Nine patients were markedly improved at follow-up examination. Graft thrombosis occurred in one patient with combined aortobi-iliac and iliopopliteal graft. The high incidence of single bifurcating lumbar arteries at the fourth and fifth lumbar vertebrae supports the hypothesis that aortic hypoplasia may result from embryonic overfusion of the dorsal aortas. Lipid abnormalities existed in 54 per cent of the patients. All women were heavy smokers and 73 per cent had a positive family history of cardiovascular disease.
Collapse
|
44
|
Caes F, Rosseel B, Cham B, Welch W. [Systematic research on an etiology in apparently primary deep venous thrombosis. Apropos of 59 cases]. J Chir (Paris) 1985; 122:455-8. [PMID: 4044707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Primary deep vein thrombosis was confirmed by phlebography in 59 cases between Jan. 1981 and Jan. 1984 in the department of Cardiovascular Surgery of the Academic Hospital of the V.U.B. Brussels. Investigations conducted in all patients included blood and urine analyses, chest radiography, electrocardiogram, gynecologic or urologic examinations and abdominal and pelvic ultrasound imaging. Findings demonstrated one or more risk factors in 92% of cases, the principal ones being obesity, a history of thromboemboli and, in women, the use of oral contraceptives. Nine patients had cancer and 4 of these received combined surgery-chemotherapy. All cases of so-called primary deep vein thrombosis should be investigated routinely for risk factors, because of the need and possibilities for treatment in some of them, particularly since procedures are non-invasive, of low cost, and easily performed during initial heparin therapy.
Collapse
|
45
|
Abstract
Spontaneous pneumothorax is a common surgical problem. Although the general principles of drainage of the pleural space and of prevention of recurrence seem well known, the literature shows differences in success rates concerning the treatment of a first pneumothorax and of the eventual recurrences. This is probably due to some technical factors and different views on the therapeutical strategy. In this retrospective review of 62 patients with spontaneous pneumothorax, 8 were treated by bed rest for their not enlarging and less than 20% pneumothorax, and 54 were treated by closed chest tube thoracostomy with an early success rate of 93.5% at the first admission. The simultaneous use of scarifying agents and closed chest drainage appears useful for the treatment of immediate or first recurrence. Sixteen patients were readmitted later for ipsilateral recurrence. According to the magnitude of their pneumothorax, they were treated by bed rest or tube thoracostomy with scarifying agents. Four of these patients needed thoracotomy with oversuturing of subpleural blebs and pleurodesis. The total thoracotomy rate of the initial patient population was 12.9% after an average follow up period of 24.8 months.
Collapse
|
46
|
Günsberg M, Bochner F, Graham G, Imhoff D, Parsons G, Cham B. Disposition of and clinical response to salicylates in patients with rheumatoid disease. Clin Pharmacol Ther 1984; 35:585-93. [PMID: 6713771 DOI: 10.1038/clpt.1984.81] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The disposition of salicylic acid (SA) and its metabolites and the clinical response to long-term aspirin treatment at varying doses were assessed in patients with rheumatoid disease. Steady-state kinetics of SA (total and unbound), salicyluric acid (SUA), gentisic acid (GA), and clinical status were estimated weekly in 10 patients with rheumatoid arthritis. Eight received a soluble aspirin form and two received an enteric-coated form. The starting dose of aspirin in each patient was 1.8 gm (soluble) or 1.95 gm (enteric-coated) daily. Weekly increments in dose were made until a satisfactory clinical outcome was achieved. The final aspirin dose range was 3.6 to 8.1 gm daily, which resulted in mean steady-state plasma SA concentrations (CpSA) from 56 to 375 mg/l. Since the mean total CpSA increased approximately proportionately over the dose range, there was little change in total SA clearance. By contrast, increasing aspirin dosage resulted in decreased clearance and disproportionate increases in unbound SA (CpuSA). The maximum velocity of conversion of SA to SUA (Vm) increased significantly, from 57.3 +/- 11.7 mg/hr at an aspirin dose of 1.8 gm/day to 71.4 +/- 19.4 mg/hr at the next highest dose (2.7 to 3.6 gm/day), with no further change with increasing dosage. Km ranged from 0.4 to 1.2 mg/l for CpuSA and from 5.5 to 17.2 for total CpSA. Renal clearance of SUA (ClSUA) ranged from 124 to 893 ml/min and correlated with creatinine clearance. ClGA ranged from 23 to 164 ml/min, and ClSA ranged from 0.1 to 17.1 ml/min; neither correlated with creatinine clearance.(ABSTRACT TRUNCATED AT 250 WORDS)
Collapse
|
47
|
Staelens I, Van den Brande P, Cham B, Welch E. [Endarterectomy of the superficial femoral artery using an oscillating loop]. Acta Chir Belg 1984; 84:129-33. [PMID: 6475429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A short series of half closed endarterectomies of superficial femoral artery with oscillating ringstripper is presented. The technique used is described, and major problems are discussed. Results are published and confrontated with the clinical events. Three criteria are withheld for indication of this procedure: the superficial femoral artery has to be completely occluded and not calcifiated; the popliteal artery has to be angiographically normal; two out of three arteries below knee have to be permeable. The authors advocate oral anticoagulation for a relatively long postoperative period.
Collapse
|
48
|
Binet JP, Cham B, Belhaj M, Conso JF, Razafinombana A, Hvass U, Planche C, Langlois J. [Problems posed by intrapulmonary fistulas due to intrathoracic vascular lesions. Apropos of 4 cases]. Ann Chir 1982; 36:661-8. [PMID: 7158977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
49
|
Langlois J, Binet JP, Planche C, Conso JF, Hvass U, Cham B, Razafinombana A, Belhaj M. [Compression of the trachea by the brachiocephalic artery in infants. Thirty-four cases (author's transl)]. Ann Chir 1982; 36:157-63. [PMID: 7044260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
50
|
Pavie A, Escande G, Cham B, Baehrel B, Barra J, Villemot JP, Gandjbakhch I, Cabrol C. [Myxomas of the right atrium. Apropos of 3 cases. Review of the literature]. Arch Mal Coeur Vaiss 1981; 74:265-72. [PMID: 6782986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The authors report 3 cases of right atrial myxoma and review 88 other cases in the literature managed by surgery. The first personal case, in a 74 year old patient, illustrate the dramatic consequences of tumour engagement in the tricuspid orifice, in this instance cardiac arrest during catheterisation justifying emergency surgery. The second case exemplifies the diagnostic value of echocardiography: the correction of an erroneous diagnosis of pericarditis. The third case shows that some forms may be totally asymptomatic, the tumor being diagnosed on clinical examination and confirmed by echocardiography. In their review of the literature, the low overall incidence of primary cardiac tumours, of which myxoma is the most common, is emphasised. A right atrial localisation is found in only 25% cases. 88 surgical reports have been published since Bahnam's original attempt at surgical cure under cardiopulmonary bypass. Myxoma may occur at any age but it usually presents between the ages of 30 and 60. Some familial forms have been reported. The presenting symptoms are protean but usually point to an obstacle in the right heart chambers. They may be summarized as follows: 1. Isolated right ventricular failure without left heart disease may be observed in large tumours (reported in 50% of cases). 2. Simulating pericarditis (25% of cases) with a low grade pyrexia (25% of cases). 3. Paroxysmas of cardio respiratory distress of variable severity (a few cases). Clinical examination, chest x-ray and ECG are not diagnostic but do show non-specific changes which are of value in drawing attention to the heart and leading to echocardiography. This confirms the diagnosis by showing abnormal mobile echos in the right atrium prolapsing into the right ventricle in diastole. Angiography serves only to confirm these appearances. Surgery is the treatment of choice, and preferably with the shortest possible delay. It offers definitive cure at a minimal risk to the patient.
Collapse
|