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Bencheikh N, Zarrintan S, Quatramoni JG, Al-Nouri O, Malas M, Gaffey AC. Vascular Surgery in Low-Income and Middle-Income Countries: A State-of-the-Art Review. Ann Vasc Surg 2023; 95:297-306. [PMID: 37285965 DOI: 10.1016/j.avsg.2023.05.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 05/15/2023] [Accepted: 05/19/2023] [Indexed: 06/09/2023]
Abstract
BACKGROUND Cardiovascular disease (CVD) represents 32% of all global deaths. Studies have shown an increase in CVD prevalence and mortality with the most substantial increase in low-income and middle-income countries (LMICs). Within LMICs, we sought to 1) measure the burden of CVD with respect to aortic aneurysm (AA), ischemic stroke (IS), and peripheral arterial disease (PAD); 2) quantify surgical access to vascular surgery services; and 3) identify challenges and solutions to addressing disparities. METHODS The Institute for Health Metrics and Evaluation Global Burden of Disease Results Tool was used to assess the global burden of CVD (AA, PAD, IS). Population data were extracted from the World Bank & Workforce data. A literature review was completed through PubMed. RESULTS The number of deaths attributable to AA, PAD, and IS in LMICs increased by up to 102% between 1990 and 2019. Disability-adjusted life-years (DALYs) lost to AA, PAD, and IS in LMICs also increased by up to 67%. High-income countries (HIC) had a less considerable increase in deaths and DALYs during this time period. There are 101 and 72.7 vascular surgeons per 10 million people in the United States and United Kingdom, respectively. LMICs, such as Morocco, Iran, and South Africa have 10 times less this number. Ethiopia has 0.25 vascular surgeons per 10 million people, 400 times less than the United States. Interventions addressing these global disparities should address infrastructure and financing, data collection and sharing, patient knowledge and beliefs, and workforce development. CONCLUSIONS Extreme regional discrepancies are evidence at a global scale. Identifying mechanisms to expand the vascular surgical workforce to meet the increasing need for vascular surgical access is imminent.
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Affiliation(s)
- Nissma Bencheikh
- Division of Vascular & Endovascular Surgery, Department of Surgery, UC San Diego, San Diego, CA
| | - Sina Zarrintan
- Division of Vascular & Endovascular Surgery, Department of Surgery, UC San Diego, San Diego, CA
| | | | - Omar Al-Nouri
- Division of Vascular & Endovascular Surgery, Department of Surgery, UC San Diego, San Diego, CA
| | - Mahmoud Malas
- Division of Vascular & Endovascular Surgery, Department of Surgery, UC San Diego, San Diego, CA
| | - Ann C Gaffey
- Division of Vascular & Endovascular Surgery, Department of Surgery, UC San Diego, San Diego, CA.
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Derrick T, Habtamu E, Tadesse Z, Callahan EK, Worku A, Gashaw B, Macleod D, Mabey DC, Holland MJ, Burton MJ. The conjunctival transcriptome in Ethiopians after trichiasis surgery: associations with the development of eyelid contour abnormalities and the effect of oral doxycycline treatment. Wellcome Open Res 2022; 4:130. [PMID: 37426632 PMCID: PMC10323279 DOI: 10.12688/wellcomeopenres.15419.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/02/2022] [Indexed: 07/31/2023] Open
Abstract
Background: Surgery to correct trichiasis is a key component of the World Health Organisation trachoma control strategy, however unfavourable outcomes such as eyelid contour abnormalities (ECA) following surgery are relatively common. This study aimed to understand the transcriptional changes associated with the early development of ECA and the impact of doxycycline, which has anti-inflammatory and anti-fibrotic properties, upon these transcription patterns. Methods: One thousand Ethiopians undergoing trichiasis surgery were enrolled in a randomised controlled trial following informed consent. Equal groups of randomly assigned individuals were orally administered with 100mg/day of doxycycline (n=499) or placebo (n=501) for 28 days. Conjunctival swabs were collected immediately prior to surgery and at one- and six-months post-surgery. 3' mRNA sequencing was performed on paired baseline and one-month samples from 48 individuals; 12 in each treatment/outcome group (Placebo-Good outcome, Placebo-Poor outcome, Doxycycline-Good outcome, Doxycycline-Poor outcome). qPCR validation was then performed for 46 genes of interest in 145 individuals who developed ECA at one month and 145 matched controls, using samples from baseline, one and six months. Results: All treatment/outcome groups upregulated genes associated with wound healing pathways at one month relative to baseline, however no individual differences were detected between groups. The summed expression of a highly coexpressed cluster of pro-fibrotic genes was higher in patients that developed ECA in the placebo group relative to controls. qPCR validation revealed that all genes in this cluster and a number of other pro-inflammatory genes were strongly associated with ECA, however these associations were not modulated by trial arm. Conclusions: The development of post-operative ECA is associated with overexpression of pro-inflammatory and pro-fibrotic genes including growth factors, matrix metalloproteinases, collagens and extracellular matrix proteins. There was no evidence that doxycycline modulated the association between gene expression and ECA.
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Affiliation(s)
- Tamsyn Derrick
- London School of Hygiene and Tropical Medicine, London, UK
- Kilimanjaro Christian Medical Centre, Moshi, Tanzania
| | - Esmael Habtamu
- London School of Hygiene and Tropical Medicine, London, UK
- The Carter Center, Addis Ababa, Ethiopia
| | | | | | - Abebaw Worku
- Amhara Regional Health Bureau, Bahirdar, Ethiopia
| | | | - David Macleod
- London School of Hygiene and Tropical Medicine, London, UK
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Shrestha R, Merbs SL, Bayissasse B, Sisay A, Beckwith C, Courtright P, Gower EW. Characteristics and perspectives of patients with postoperative trichiasis in Hadiya Zone, Ethiopia. Int Health 2022; 14:i49-i56. [PMID: 35385867 PMCID: PMC8986352 DOI: 10.1093/inthealth/ihac004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 12/08/2021] [Accepted: 01/25/2022] [Indexed: 11/17/2022] Open
Abstract
Background Postoperative trachomatous trichiasis (PTT) is a challenge for trichiasis surgery programs. Little is known about PTT patients’ perceptions regarding outcomes and future disease management. This study aimed to understand the characteristics of PTT patients, how they managed trichiasis and their perceptions of prior surgeries and future surgery uptake. Methods Patients with PTT were identified during an existing trichiasis screening program in Hadiya Zone, Ethiopia. A vision assessment and evaluation of the eyelids were conducted to determine distance vision, presence and severity of trichiasis and eyelid contour abnormalities. A questionnaire was administered to obtain information regarding patients’ perceptions of surgery and PTT management approaches. Descriptive statistics were used to characterize PTT and determine associations between PTT severity and patient perceptions. Results Among 404 participants, most were female (79.7%) and aged 40–60 y (62.6%). In total, 514 eyelids had PTT, and nearly half had severe PTT (46.9%). Although >50% of participants were currently epilating to manage their PTT, the majority (82.8%) indicated that they wanted repeat surgery. Most participants indicated that pain persisted despite epilation. The majority (75.1%) indicated satisfaction with their prior surgery and 59.6% indicated that they would recommend surgery to others. Conclusions This study, which included a large proportion of severe PTT cases, indicated that individuals were generally satisfied with prior surgery and would prefer to have surgery again for PTT management.
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Affiliation(s)
- Riju Shrestha
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Shannath L Merbs
- Department of Ophthalmology and Visual Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
| | | | | | | | - Paul Courtright
- Sightsavers, Haywards Heath, UK.,Kilimanjaro Centre for Community Ophthalmology, Division of Ophthalmology, University of Cape Town, Cape Town, South Africa
| | - Emily W Gower
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,Department of Ophthalmology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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Churko C, Asfaw MA, Zerdo Z. Exploring barriers for trachomatous trichiasis surgery implementation in gamo zone, Southern Ethiopia. PLoS Negl Trop Dis 2021; 15:e0009780. [PMID: 34525104 PMCID: PMC8476041 DOI: 10.1371/journal.pntd.0009780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 09/27/2021] [Accepted: 09/01/2021] [Indexed: 11/18/2022] Open
Abstract
Background Trachomatous trichiasis is the leading infectious cause of blindness worldwide. The World Health Organization recommends eyelid surgery to reduce the risk of visual impairment from trichiasis. Unfortunately, the number of cases operated has grown less than expected. An understanding of barriers is fundamental for instituting measures to increase surgical uptake. Therefore, the aim of this study was to explore barriers of TT surgery implementation. Methods A qualitative study design was employed in December 2019. Purposive sampling technique was used to select three districts from Gamo zone, Southern Ethiopia. We conducted 9 FGDs and 12 in-depth interviews. Data was collected by audio tape recorder in Amharic and Gamogna languages and then transcribed to English language. The recorded interviews and focus group discussions were transcribed to verbatim (written text) and thematic analysis was done manually and reported accordingly. Findings we explored a number of barriers that hindered implementation of trichiasis surgery. The recurrence of trichiasis after surgery was the main challenges faced by operated individuals. The other barriers reported are negative perception towards trichiasis surgery, lack of logistic and supplies, transportation access problem for remote communities, inadequate trained health professional, less commitment from higher officials, lack of interest of integrated eye care workers due to incentive issues, believes of patients waiting supernatural power for healing service and carelessness of patients to undertake operation. Conclusion and recommendation Post-surgical trichiasis, lack of commitment from government officials and negative perception of patients towards the disease were considered as the reported barriers for implementation of trachomatous trichiasis. Closely supervising the integrated eye care workers would be the first task for district health offices to increase the uptake and improve the quality of service. Logistics and supplies should be made available and adequate to address all affected people in the community. Despite the scale-up of surgical services to eliminate blinding trachoma, the current surgical activity is not effectively tackling the backlog. There are limited studies done previously that explore barriers on implementation of trachomatous trichiasis surgery in Ethiopia. Therefore, understanding barriers is fundamental for instituting measures to increase surgical uptake. Hence, reliable population-based data on barriers towards trichiasis surgery implementation is very crucial for planning effective trachoma control programs, for the country like Ethiopia where trachoma ranks the first in the list of high burden countries. Our finding showed that post-surgical trichiasis, lack of commitment from government officials and negative perception of patients towards the disease were considered as the reported barriers for implementation of trachomatous trichiasis. Closely supervising the integrated eye care workers would be the first task for district health offices to increase the uptake and improve the quality of service. Logistics and supplies should be made available and adequate to address all affected people in the community.
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Affiliation(s)
- Chuchu Churko
- Collaborative Research and Training Center for Neglected Tropical Diseases, College of Medicine and Health Sciences, Arba Minch University, Arba Minch, Ethiopia
- * E-mail:
| | - Mekuria Asnakew Asfaw
- Collaborative Research and Training Center for Neglected Tropical Diseases, College of Medicine and Health Sciences, Arba Minch University, Arba Minch, Ethiopia
| | - Zerihun Zerdo
- Department of Medical Laboratory Science, College of Medicine and Health Sciences, Arba Minch University, Arba Minch, Ethiopia
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Wright HR, Turner A, Taylor HR. Trachoma and poverty: unnecessary blindness further disadvantages the poorest people in the poorest countries. Clin Exp Optom 2021; 90:422-8. [DOI: 10.1111/j.1444-0938.2007.00218.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Heathcote R Wright
- Centre for Eye Research Australia, The University of Melbourne, WHO Collaborating Centre for the Prevention of Blindness, East Melbourne VIC, Australia
- Vision CRC, University of New South Wales, Sydney NSW, Australia
E‐mail:
| | - Angus Turner
- Centre for Eye Research Australia, The University of Melbourne, WHO Collaborating Centre for the Prevention of Blindness, East Melbourne VIC, Australia
| | - Hugh R Taylor
- Centre for Eye Research Australia, The University of Melbourne, WHO Collaborating Centre for the Prevention of Blindness, East Melbourne VIC, Australia
- Vision CRC, University of New South Wales, Sydney NSW, Australia
E‐mail:
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Mtuy TB, Burton MJ, Mwingira U, Ngondi JM, Seeley J, Lees S. Knowledge, perceptions and experiences of trachoma among Maasai in Tanzania: Implications for prevention and control. PLoS Negl Trop Dis 2019; 13:e0007508. [PMID: 31233497 PMCID: PMC6611635 DOI: 10.1371/journal.pntd.0007508] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 07/05/2019] [Accepted: 05/31/2019] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The Alliance for the Global Elimination of Trachoma has set the target for eliminating trachoma as a public health problem by 2020. However, challenges remain, including socio-cultural issues. Districts in Northern Tanzania, predominantly inhabited by the Maasai ethnic group, remain endemic for trachoma. We explored socio-cultural factors that may impact the elimination of trachoma. METHODS/FINDINGS This study was nested within a larger ethnographic study of trachoma among Maasai in Northern Tanzania. We used stratified random sampling and semi-structured interviews to examine knowledge and understanding. Interviews were conducted and recorded in Maa, by a native Maa speaking trained interviewer. Transcripts were translated into English. A framework method for a content analysis was used. There was awareness of trachoma and basic symptoms. Yet understanding of etiology and prevention was poor. Trachoma was attributed to pollen, dust, and smoke. Water was recognized as beneficial, but seen as treatment and not prevention. Traditional medicines were most often used for treating conjunctival inflammation, with the most common being a rough leaf used to scratch the inside of the eyelid until it bleeds. Knowledge of mass drug administration (MDA) was inconsistent, although many thought it helped the community, but it was perceived as only for children and the sick. Many participants reported not taking azithromycin and some had no recollection of MDA six months earlier. There was little connection between childhood infection, trichiasis and related blindness. Trichiasis was often seen as a problem of old women, and treated locally by epilation. CONCLUSION/SIGNIFICANCE Understanding indigenous knowledge may help guide control programs, tailor them to local contexts, address local beliefs and dispel misunderstandings. There is an essential need to understand the social, cultural and political context of the target community to deliver effective programs. Despite limited knowledge, the community recognized trachoma as a public health problem. Results have implications for disease control programs in other marginalized communities.
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Affiliation(s)
- Tara B. Mtuy
- Department of Global Health and Development, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Matthew J. Burton
- International Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Upendo Mwingira
- NTD Control Programme, National Institute for Medical Research, Dar es Salaam, Tanzania
| | - Jeremiah M. Ngondi
- Global Health Division, RTI International, Washington DC, United States of America
| | - Janet Seeley
- Department of Global Health and Development, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Shelley Lees
- Department of Global Health and Development, London School of Hygiene & Tropical Medicine, London, United Kingdom
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Mpyet C, Ramyil A, Dami N, Courtright P. Use of an inexpensive magnifier with light source in the diagnosis of trichiasis among community-based case finders in Nigeria. Ophthalmic Epidemiol 2019; 25:138-142. [PMID: 30806539 DOI: 10.1080/09286586.2018.1546876] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
PURPOSE Trichiasis case finding is challenging in many trachoma endemic countries. We sought to determine how the use of an inexpensive hand-held magnifier with light source aids in the diagnosis of people with trichiasis. METHODS We undertook a study on the use of the "Wilson", an inexpensive hand-held magnifier with light source between two groups of trained case finders: community drug distributors (CDD) volunteers and non-health volunteers. Each group was randomly allocated to be provided a Wilson or not. We compared the number of people with suspected trichiasis and the proportion of true cases referred by each group. Focus group discussions explored the perceptions of the case finders that used the Wilson on its utility in the diagnosis of trichiasis and its ease of use. RESULTS Among the 121 case finders, 61 were CDD volunteers (31 were provided the Wilson) and 60 were non-health worker volunteers (30 were provided the Wilson). Case finders that used the Wilson were 4.57 times (95% CI 2.46-8.47) more likely to have patients presenting confirmed as trichiasis compared to those not using the Wilson. Case finders that used the Wilson felt the instrument was easy to use, enlarged the eyelashes and made diagnoses of trichiasis easier. DISCUSSION In Nigeria it appears that the Wilson is easy to handle and use among trichiasis case finders enhances the diagnosis of trichiasis.
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Affiliation(s)
- Caleb Mpyet
- a Department of Ophthalmology , University of Jos , Jos , Nigeria.,b Sightsavers , Kaduna , Nigeria.,c Kilimanjaro Centre for Community Ophthalmology, Division of Ophthalmology , University of Cape Town , Cape Town , South Africa
| | - Alice Ramyil
- a Department of Ophthalmology , University of Jos , Jos , Nigeria
| | - Nantok Dami
- d Department of Community Health , University of Jos , Jos , Nigeria
| | - Paul Courtright
- c Kilimanjaro Centre for Community Ophthalmology, Division of Ophthalmology , University of Cape Town , Cape Town , South Africa
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Meshesha TD, Senbete GH, Bogale GG. Determinants for not utilizing trachomatous trichiasis surgery among trachomatous trichiasis patients in Mehalsayint District, North-East Ethiopia. PLoS Negl Trop Dis 2018; 12:e0006669. [PMID: 30020941 PMCID: PMC6066252 DOI: 10.1371/journal.pntd.0006669] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 07/30/2018] [Accepted: 07/09/2018] [Indexed: 11/23/2022] Open
Abstract
Background Globally, trachoma is the leading cause of infectious blindness. In Ethiopia, the overall Trachomatous Trichiasis (TT) surgical coverage is 41%. Identifying determinants for not utilizing TT surgery among TT patients is important to design and monitor effective intervention programs. Therefore, this study aimed to identify determinants for not utilizing TT surgery among TT patients in Mehalsayint District, North East Ethiopia. Methodology/Principal findings A community based unmatched case control study was employed from March 30, 2017 to April 13, 2017. A total of 482 study participants (241 cases and 241 controls) with age of ≥15 years were included in the study. The data were entered with Epi info version 7.2 software and exported to SPSS version 20 for analysis. Bivariate analysis was fitted to screen candidate variables with p<0.2 for the final model. Finally, multivariable logistic regression analysis was employed to identify significant factors (p<0.05) for not utilizing TT surgery. Respondents’ age of 16–30 years (AOR: 10.11; 95% CI: 2.72, 37.59) and widowed respondents (AOR: 0.40; 95% CI: 0.21, 0.77), time to reach the service (AOR: 0.46; 95% CI: 0.24, 0.87), unavailability of TT surgeon (AOR: 5.00; 95% CI: 1.16, 21.38), symptoms of trichiasis (AOR: 7.49; 95% CI: 2.41, 23.26), duration of the problem (AOR: 2.56; 95% CI: 1.44, 4.54), the affected eye (AOR: 2.16; 95% CI: 1.23, 3.80), epilation practice (AOR: 3.22; 95% CI: 1.84, 5.64), and place of TT surgery given (AOR: 4.21; 95% CI: 2.48, 7.14) were significant determinants for not utilizing TT surgical services. Conclusions/Significance In this study, TT surgery against trachoma is very low and TT remains public health problem in the district. Being younger age and widowed, time taken to reach the service, absence of TT surgeon, symptoms of trichiasis, duration of problem, the affected eye, epilation practice, and service place were determinants for the inability of TT surgical services. The findings of this study would help in designing effective interventions to reduce trachoma in that district. Trachoma is the common ophthalmic infection and cause of blindness worldwide. It is caused by ocular infections with causative agent of Chlamydia trachomatis that might effect in chronic inflammation of the eyelids, which produces scarring of the conjunctiva that can consequently cause entropion trichiasis, resulting in interned eyelashes. The interned eyelashes as well as other changes of the eye, harm the cornea causing severe pain, corneal opacity and resulting vision loss. Over a million people in Ethiopia are estimated to have Trachomatous trichiasis (TT). Trachomatous trichiasis surgery is the backbone treatment option. Though the provision of free surgical services in the country exists, utilization rates are very low. Identifying the determinants for not utilizing the service is mandatory to take measures towards surgical uptake. A total of 482 study participants (241 cases and 241 controls) with age of ≥15 years were included in the study. The determinants for not use of surgical services were respondents in the younger age group (16–30 years) and widowed participants, lengthy distance from the service, unavailability of TT surgeon, no trichiasis symptoms, long time knowing the problem, right/left eye affected, no experience of epilation practice, and participants who knew place of service was given at health center.
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Affiliation(s)
- Tedla Desta Meshesha
- Trachoma Program at East Amhara Sub-Regional Office, The Carter Center, Dessie, Ethiopia
- * E-mail:
| | - Goitom Halefom Senbete
- Department of Public Health, College of Medicine and Health Science, Wollo University, Dessie, Ethiopia
| | - Getahun Gebre Bogale
- Department of Health Information Technology, Dessie Health Science College, Dessie, Ethiopia
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Gupta KM, Harding JC, Othman MS, Merbs SL, Gower EW. Why do patients refuse trichiasis surgery? Lessons and an education initiative from Mtwara Region, Tanzania. PLoS Negl Trop Dis 2018; 12:e0006464. [PMID: 29902219 PMCID: PMC6001945 DOI: 10.1371/journal.pntd.0006464] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 04/19/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Trachomatous trichiasis is one of the leading causes of preventable blindness worldwide. A relatively simple surgery can spare vision. Although this surgery is usually performed free of charge in endemic regions, multiple studies indicate that surgical refusal is common. Prior studies have attempted to examine these reasons, although they generally rely on patient recall months to years after the surgery was offered. This study set out to determine major decision-making factors at the time of refusal. In addition, this study looked for ways to help increase surgical uptake by targeting modifiable factors. METHODOLOGY/PRINCIPAL FINDINGS We used a combination of focus groups, interviews with community health workers, and individual interviews with trichiasis patients who refused surgery to understand their decision-making. We found that several factors influenced surgical refusals, including misconception regarding recovery time, inability to find a post-surgical caregiver, and the time of year of the surgical campaign. Fear of the surgery itself played a minimal role in refusals. CONCLUSIONS/SIGNIFICANCE Trichiasis patients refuse surgery for many reasons, but a large percentage is due to lack of information and education, and is, therefore, modifiable within the structure of a surgical outreach project. To address this, we developed a "frequently asked questions" (FAQ) document aimed at community health workers, which may have helped to decrease some of the misconceptions that had led to prior refusals.
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Affiliation(s)
- Katherine M. Gupta
- Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
| | | | | | - Shannath L. Merbs
- Wilmer Eye Institute, Johns Hopkins School of Medicine, Baltimore, Maryland, United States of America
| | - Emily W. Gower
- Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
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Identifying Patient Perceived Barriers to Trichiasis Surgery in Kongwa District, Tanzania. PLoS Negl Trop Dis 2017; 11:e0005211. [PMID: 28052070 PMCID: PMC5215731 DOI: 10.1371/journal.pntd.0005211] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 11/28/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Trachomatous trichiasis (TT), inturned eyelashes from repeated infection with Chlamydia trachomatis, is the leading infectious cause of blindness in the world. Though surgery will correct entropion caused by trachoma, uptake of TT surgery remains low. In this case-control study, we identify barriers that prevent TT patients from receiving sight-saving surgery. METHODOLOGY/PRINCIPAL FINDINGS Participants were selected from a database of TT cases who did (acceptors) and did not (non-acceptors) have surgery as of August 2015. We developed an in-home interview questionnaire, using open and closed-ended questions on perceived barriers to accessing surgical services. We compared responses between the acceptors and non-acceptors, examining differences in reasons for and against surgery, sources of TT information, and suggestions for improving surgical delivery. 167 participants (mean age 61 years, 79.7% females) were interviewed. Compared to acceptors, non-acceptors were more likely to report they had no one to accompany them to surgery (75.3% vs. 42.6%, p<0.0001), they could manage TT on their own (69.9% vs. 31.5%, p<0.0001), and the surgery camp was too far (53.4% vs. 28.7%, p = 0.001). Over 90% of both acceptors and non-acceptors agreed on the benefits of having surgery. Fear of surgery was the biggest barrier stated by both groups. Despite this fear, acceptors were more likely than non-acceptors to also report fear of losing further vision without surgery. CONCLUSIONS/SIGNIFICANCE Barriers included access issues, familial and/or work responsibilities, the perception that self-management was sufficient, and lack of education about surgery. Fear of surgery was the biggest barrier facing both acceptors and non-acceptors. Increasing uptake will require addressing how surgery is presented to community residents, including outlining treatment logistics, surgical outcomes, and stressing the risk of vision loss.
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Mtuya C, Cleland CR, Philippin H, Paulo K, Njau B, Makupa WU, Hall C, Hall A, Courtright P, Mushi D. Reasons for poor follow-up of diabetic retinopathy patients after screening in Tanzania: a cross-sectional study. BMC Ophthalmol 2016; 16:115. [PMID: 27435362 PMCID: PMC4950081 DOI: 10.1186/s12886-016-0288-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 07/05/2016] [Indexed: 11/25/2022] Open
Abstract
Background Diabetes is an emerging public health problem in sub-Saharan Africa. Diabetic retinopathy is the commonest microvascular complication of diabetes and is a leading cause of blindness, mainly in adults of working age. Follow-up is crucial to the effective management of diabetic retinopathy, however, follow-up rates are often poor in sub-Saharan Africa. The aim of this study was to assess the proportion of patients not presenting for follow-up and the reasons for poor follow-up of diabetic patients after screening for retinopathy in Kilimanjaro Region of Tanzania. Methods All diabetic patients referred to a tertiary ophthalmology hospital after screening for retinopathy in 2012 were eligible for inclusion in the study. A randomly selected group of patients from the community-based diabetic retinopathy screening register were identified; among this group, follow-up was assessed. Interviews were conducted within this group to inform on the reasons for poor follow-up. Results Among the 203 patients interviewed in the study 50 patients (24.6 %) attended the recommended referral appointment and 153 (75.4 %) did not. Financial reasons were self-reported by 35.3 % of those who did not attend the follow-up appointment as the reason for non-attendance. Multiple logistic regression analysis showed that the patient report of the clarity of the referral process (p = 0.014) and the patient report of whether a healthcare worker told the patient that diabetic retinopathy could be treated (p = 0.005) were independently associated with attendance at a follow-up appointment. Income per month was not associated with attendance at a follow-up appointment on multivariate analysis. Conclusions Financial factors are commonly cited as the reason for non-compliance with follow-up recommendations. However, the reasons for poor compliance are likely to be more complicated. This study highlights the importance of health system factors. Improving the clarity of the referral process and frequent reminders to patients that diabetic retinopathy can be treated are practical strategies that should be incorporated into screening programmes to increase attendance at subsequent follow-up appointments. The results from this study are applicable to other screening programmes as well as those for diabetic retinopathy. Electronic supplementary material The online version of this article (doi:10.1186/s12886-016-0288-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Christina Mtuya
- Kilimanjaro Christian Medical University College, Faculty of Nursing, Moshi, Tanzania
| | - Charles R Cleland
- Eye Department, Kilimanjaro Christian Medical Centre, Moshi, Tanzania.
| | - Heiko Philippin
- Eye Department, Kilimanjaro Christian Medical Centre, Moshi, Tanzania.,International Centre for Eye Health, Faculty of Infectious & Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK
| | - Kidayi Paulo
- Kilimanjaro Christian Medical University College, Faculty of Nursing, Moshi, Tanzania
| | - Bernard Njau
- Kilimanjaro Christian Medical University College, Faculty of Nursing, Moshi, Tanzania
| | - William U Makupa
- Eye Department, Kilimanjaro Christian Medical Centre, Moshi, Tanzania
| | - Claudette Hall
- Department of Work & Social Psychology, University Maastricht, Faculty of Psychology and Neuroscience, P.O. Box 616, 6200 MD, Maastricht, The Netherlands
| | - Anthony Hall
- Newcastle Eye Hospital Research Foundation, 182 Christo Road, Waratah, NSW, 2289, Australia
| | - Paul Courtright
- Kilimanjaro Centre for Community Ophthalmology, Division of Ophthalmology, University of Cape Town, Cape Town, South Africa
| | - Declare Mushi
- Kilimanjaro Christian Medical University College, Faculty of Nursing, Moshi, Tanzania
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12
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Affiliation(s)
- John Cameron Buchan
- London School of Hygiene & Tropical Medicine, Keppel Street, London WC1E 7HT, UK.
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13
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Assessment of a Novel Approach to Identify Trichiasis Cases Using Community Treatment Assistants in Tanzania. PLoS Negl Trop Dis 2015; 9:e0004270. [PMID: 26658938 PMCID: PMC4676626 DOI: 10.1371/journal.pntd.0004270] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 11/08/2015] [Indexed: 11/29/2022] Open
Abstract
Background Simple surgical intervention advocated by the World Health Organization can alleviate trachomatous trichiasis (TT) and prevent subsequent blindness. A large backlog of TT cases remain unidentified and untreated. To increase identification and referral of TT cases, a novel approach using standard screening questions, a card, and simple training for Community Treatment Assistants (CTAs) to use during Mass Drug Administration (MDA) was developed and evaluated in Kongwa District, a trachoma-endemic area of central Tanzania. Methodology/Principal Findings A community randomized trial was conducted in 36 communities during MDA. CTAs in intervention villages received an additional half-day of training and a TT screening card in addition to the training received by CTAs in villages assigned to usual care. All MDA participants 15 years and older were screened for TT, and senior TT graders confirmed case status by evaluating all screened-positive cases. A random sample of those screened negative for TT and those who did not present at MDA were also evaluated by the master graders. Intervention CTAs identified 5.6 times as many cases (n = 50) as those assigned to usual care (n = 9, p < 0.05). While specificity was above 90% for both groups, the sensitivity for the novel screening tool was 31.2% compared to 5.6% for the usual care group (p < 0.05). Conclusions/Significance CTAs appear to be viable resources for the identification of TT cases. Additional training and use of a TT screening card significantly increased the ability of CTAs to recognize and refer TT cases during MDA; however, further efforts are needed to improve case detection and reduce the number of false positive cases. Surgical management of trachomatous trichiasis (TT) is recommended by the WHO as a cost-effective strategy to mitigate blinding trachoma. However, a large surgical backlog exists and many individuals suffering with TT remain unknown to the health system. To identify TT cases, we designed a standard set of screening questions, a card, and simple training for Community Treatment Assistants (CTAs) to identify trichiasis during community-wide Mass Drug Administrations (MDA). To evaluate the sensitivity, specificity, and positive predictive value of this approach, we conducted a community randomized trial in 36 communities in trachoma-endemic Kongwa District, Tanzania. Additional training and the use of a TT screening card increased the sensitivity of TT identification and resulted in more cases identified compared to the usual training of CTAs. The positive predictive value was low, indicating a need for further verification of TT cases identified by the enhanced screening. MDA appears to be a good opportunity for TT screening by CTAs, but further training to improve screening sensitivity is suggested.
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Habtamu E, Rajak SN, Tadesse Z, Wondie T, Zerihun M, Guadie B, Gebre T, Kello AB, Callahan K, Mabey DCW, Khaw PT, Gilbert CE, Weiss HA, Emerson PM, Burton MJ. Epilation for minor trachomatous trichiasis: four-year results of a randomised controlled trial. PLoS Negl Trop Dis 2015; 9:e0003558. [PMID: 25768796 PMCID: PMC4358978 DOI: 10.1371/journal.pntd.0003558] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 01/22/2015] [Indexed: 11/19/2022] Open
Abstract
Background Trachomatous trichiasis (TT) needs to be managed to reduce the risk of vision loss. The long-term impact of epilation (a common traditional practice of repeated plucking of lashes touching the eye) in preventing visual impairment and corneal opacity from TT is unknown. We conducted a randomized controlled trial of epilation versus surgery for the management of minor TT (fewer than six lashes touching the eye) in Ethiopia. Here we report the four-year outcome and the effect on vision and corneal opacity. Methodology/ Principal Findings 1300 individuals with minor TT were recruited and randomly assigned to quality trichiasis surgery or repeated epilation using high quality epilation forceps by a trained person with good near vision. Participants were examined six-monthly for two-years, and then at four-years after randomisation. At two-years all epilation arm participants were offered free surgery. At four-years 1151 (88.5%) were re-examined: 572 (88%) and 579 (89%) from epilation and surgery arms, respectively. At that time, 21.1% of the surgery arm participants had recurrent TT; 189/572 (33%) of the epilation arm had received surgery, while 383 (67%) declined surgery and had continued epilating (“epilation-only”). Among the epilation-only group, 207 (54.1%) fully controlled their TT, 166 (43.3%) had minor TT and 10 (2.6%) had major TT (>5 lashes). There were no differences between participants in the epilation-only, epilation-to-surgery and surgery arm participants in changes in visual acuity and corneal opacity between baseline and four-years. Conclusions/ Significance Most minor TT participants randomised to the epilation arm continued epilating and controlled their TT. Change in vision and corneal opacity was comparable between surgery and epilation-only participants. This suggests that good quality epilation with regular follow-up is a reasonable second-line alternative to surgery for minor TT for individuals who either decline surgery or do not have immediate access to surgical treatment. Trachoma causes visual impairment through the effect of in-turned eyelashes (trichiasis) on the surface of the eye. Epilation is a common traditional practice of intermittent plucking of lashes touching the eye, however, its long-term effectiveness in preventing visual impairment is unknown. We conducted a randomized controlled trial of epilation versus eyelid surgery (the main treatment option) in 1300 people with mild trichiasis in Ethiopia. We defined mild trichiasis as fewer than six lashes touching the eye. We have previously reported results to two years and have now re-assessed these individuals at four years. Overall, we found no difference between the epilation and surgery groups in terms of change in vision and corneal opacity between baseline and four years. Most mild trichiasis participants randomised to the epilation arm continued epilating and controlled their trichiasis. This suggests that good quality epilation is a reasonable second-line alternative to surgery for mild trichiasis for individuals who either decline surgery or do not have immediate access to surgical treatment.
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Affiliation(s)
- Esmael Habtamu
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom
- The Carter Center, Addis Ababa, Ethiopia
| | - Saul N. Rajak
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | | | | | | | | | - Teshome Gebre
- International Trachoma Initiative, Addis Ababa, Ethiopia
| | | | - Kelly Callahan
- The Carter Center, Atlanta, Georgia, United States of America
| | - David C. W. Mabey
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Peng T. Khaw
- NIHR Biomedical Research Centre at Moorfields Eye Hospital and UCL Institute of Ophthalmology, London, United Kingdom
| | - Clare E. Gilbert
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Helen A. Weiss
- MRC Tropical Epidemiology Group, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Paul M. Emerson
- International Trachoma Initiative, Atlanta, Georgia, United States of America
| | - Matthew J. Burton
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom
- NIHR Biomedical Research Centre at Moorfields Eye Hospital and UCL Institute of Ophthalmology, London, United Kingdom
- * E-mail:
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Khanduja S, Jhanji V, Sharma N, Vashist P, Murthy GVS, Gupta SK, Satpathy G, Tandon R, Titiyal JS, Vajpayee RB. Trachoma prevalence in women living in rural northern India: rapid assessment findings. Ophthalmic Epidemiol 2012; 19:216-20. [PMID: 22775277 DOI: 10.3109/09286586.2012.657765] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE Rapid assessment of cicatricial trachoma in adult females aged over 15 years in a previously hyperendemic rural area in Haryana, North India. METHODS Ten disadvantaged villages each with a population of 3000-5000 were chosen by cluster random sampling. One thousand females, 500 between 15-30 years and the rest over 30 years in the underdeveloped parts of the villages, identified by observation and consultation, were examined for signs of trachomatous scarring (TS), trachomatous trichiasis (TT) and trachomatous corneal opacity (TCO). Examinations of both eyes were performed with the aid of a binocular loupe (2.5x magnification) for signs of trachoma, its complications and other ocular morbidities. RESULTS Bilateral examination was carried out in all participants. About two-thirds (n = 650; 65%) of subjects did not have any signs of trachoma. The percentages of trachoma stages TS, TT and TCO were found to be 26.4%, 5.4% and 3.2% respectively. Trichiasis was observed in 54 subjects, all in the age group >30 years, and highest in the age group 66-75 years (22.8%). Females in the age group >30 years had significantly higher cicatricial trachoma compared to females <30 years (p < 0.001). Overall 59.3% of affected females had not received any treatment. Epilation and entropion surgery had been performed in 30.3% and 10.4% of affected females, respectively. CONCLUSION The results of our rapid assessment suggest that the presence of cicatricial trachoma remains an important health issue in females over 15 years of age.
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Affiliation(s)
- Sumeet Khanduja
- Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
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16
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Rajak SN, Habtamu E, Weiss HA, Bedri A, Zerihun M, Gebre T, Gilbert CE, Emerson PM, Burton MJ. Why do people not attend for treatment for trachomatous trichiasis in Ethiopia? A study of barriers to surgery. PLoS Negl Trop Dis 2012; 6:e1766. [PMID: 22953007 PMCID: PMC3429389 DOI: 10.1371/journal.pntd.0001766] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Accepted: 06/22/2012] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Trachomatous trichiasis (TT) surgery is provided free or subsidised in most trachoma endemic settings. However, only 18-66% of TT patients attend for surgery. This study analyses barriers to attendance among TT patients in Ethiopia, the country with the highest prevalence of TT in the world. METHODOLOGY/PRINCIPAL FINDINGS Participants with previously un-operated TT were recruited at 17 surgical outreach campaigns in Amhara Region, Ethiopia. An interview was conducted to ascertain why they had not attended for surgery previously. A trachoma eye examination was performed by an ophthalmologist. 2591 consecutive individuals were interviewed. The most frequently cited barriers to previous attendance for surgery were lack of time (45.3%), financial constraints (42.9%) and lack of an escort (35.5% in females, 19.6% in males). Women were more likely to report a fear of surgery (7.7% vs 3.2%, p<0.001) or be unaware of how to access services (4.5% vs 1.0% p<0.001); men were more frequently asymptomatic (19.6% vs 10.1%, p<0.001). Women were also less likely to have been previously offered TT surgery than men (OR = 0.70, 95%CI 0.53-0.94). CONCLUSIONS/SIGNIFICANCE The major barriers to accessing surgery from the patients' perspective are the direct and indirect costs of surgery. These can to a large extent be reduced or overcome through the provision of free or low cost surgery at the community level. TRIAL REGISTRATION ClinicalTrials.gov NCT00522860 and NCT00522912.
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Affiliation(s)
- Saul N. Rajak
- The London School of Hygiene and Tropical Medicine, London, United Kingdom
- * E-mail:
| | - Esmael Habtamu
- The Carter Center, Bahir Dar, Ethiopia
- The Carter Center, Atlanta, Georgia, United States of America
| | - Helen A. Weiss
- The London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Amir Bedri
- Light For The World, Addis Ababa, Ethiopia
| | - Mulat Zerihun
- The Carter Center, Bahir Dar, Ethiopia
- The Carter Center, Atlanta, Georgia, United States of America
| | - Teshome Gebre
- The Carter Center, Bahir Dar, Ethiopia
- The Carter Center, Atlanta, Georgia, United States of America
| | - Clare E. Gilbert
- The London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Paul M. Emerson
- The Carter Center, Bahir Dar, Ethiopia
- The Carter Center, Atlanta, Georgia, United States of America
| | - Matthew J. Burton
- The London School of Hygiene and Tropical Medicine, London, United Kingdom
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17
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Gower EW, West SK, Cassard SD, Munoz BE, Harding JC, Merbs SL. Definitions and standardization of a new grading scheme for eyelid contour abnormalities after trichiasis surgery. PLoS Negl Trop Dis 2012; 6:e1713. [PMID: 22745845 PMCID: PMC3383763 DOI: 10.1371/journal.pntd.0001713] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2012] [Accepted: 05/15/2012] [Indexed: 11/28/2022] Open
Abstract
Background Clear definitions of outcomes following trichiasis surgery are critical for planning program evaluations and for identifying ways to improve trichiasis surgery. Eyelid contour abnormality is an important adverse outcome of surgery; however, no standard method has been described to categorize eyelid contour abnormalities. Methodology/Principal Findings A classification system for eyelid contour abnormalities following surgery for trachomatous trichiasis was developed. To determine whether the grading was reproducible using the classification system, six-week postoperative photographs were reviewed by two senior graders to characterize severity of contour abnormalities. Sample photographs defining each contour abnormality category were compiled and used to train four new graders. All six graders independently graded a Standardization Set of 75 eyelids, which included a roughly equal distribution across the severity scale, and weighted kappa scores were calculated. Two hundred forty six-week postoperative photographs from an ongoing clinical trial were randomly selected for evaluating agreement across graders. Two months after initial grading, one grader regraded a subset of the 240 photographs to measure longer-term intra-observer agreement. The weighted kappa for agreement between the two senior graders was 0.80 (95% CI: 0.71–0.89). Among the Standardization Set, agreement between the senior graders and the 4 new graders showed weighted kappa scores ranging from 0.60–0.80. Among 240 eyes comprising the clinical trial dataset, agreement ranged from weighted kappa 0.70–0.71. Longer-term intra-observer agreement was weighted kappa 0.86 (95% CI: 0.80–0.92). Conclusions/Significance The standard eyelid contour grading system we developed reproducibly delineates differing levels of contour abnormality. This grading system could be useful both for helping to evaluate trichiasis surgery outcomes in clinical trials and for evaluating trichiasis surgery programs. Approximately 8 million individuals worldwide suffer from trichiasis, a condition characterized by in-turned lashes that rub against the eye. Trichiasis is caused by repeated or prolonged ocular infection with Chlamydia trachomatis. Surgery is available to correct in-turned lashes. In most programmatic and research settings, the primary determinant of surgical success is whether or not lashes are touching the globe post-operatively. However, other surgical outcomes such as the contour of the eyelid are also important. Yet, no standard method for evaluating and reporting this outcome has been defined. In this study, we developed and tested a grading system for evaluating the severity of eyelid contour abnormalities after surgery using photographs of eyelids six weeks post-operatively. We found good agreement across photograph graders and also between field and photograph grades. This system should be useful in helping to standardize reporting of this outcome.
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Affiliation(s)
- Emily W Gower
- Department of Epidemiology and Prevention, Wake Forest School of Medicine, Winston-Salem, North Carolina, United States of America.
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18
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Trachomatous trichiasis and its management in endemic countries. Surv Ophthalmol 2012; 57:105-35. [PMID: 22285842 PMCID: PMC3316859 DOI: 10.1016/j.survophthal.2011.08.002] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2011] [Revised: 08/09/2011] [Accepted: 08/11/2011] [Indexed: 11/20/2022]
Abstract
Trichiasis is the sight-threatening consequence of conjunctival scarring in trachoma, the most common infectious cause of blindness worldwide. Trachomatous trichiasis is the result of multiple infections from childhood with Chlamydia trachomatis, which causes recurrent chronic inflammation in the tarsal conjunctiva. This produces conjunctival scarring, entropion, trichiasis, and ultimately blinding corneal opacification. The disease causes painful, usually irreversible sight loss. Over eight million people have trachomatous trichiasis, mostly those living in poor rural communities in 57 endemic countries. The global cost is estimated at US$ 5.3 billion. The WHO recommends surgery as part of the SAFE strategy for controlling the disease.We examine the principles of clinical management, treatment options, and the challenging issues of providing the quantity and quality of surgery that is needed in resource-poor settings.
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19
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Surgery versus epilation for the treatment of minor trichiasis in Ethiopia: a randomised controlled noninferiority trial. PLoS Med 2011; 8:e1001136. [PMID: 22180731 PMCID: PMC3236738 DOI: 10.1371/journal.pmed.1001136] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Accepted: 10/18/2011] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Trachomatous trichiasis can cause corneal damage and visual impairment. WHO recommends surgery for all cases. However, in many regions surgical provision is inadequate and patients frequently decline. Self-epilation is common and was associated with comparable outcomes to surgery in nonrandomised studies for minor trichiasis (<six lashes touching eye). This trial investigated whether epilation is noninferior to surgery for managing minor trichiasis. METHODS AND FINDINGS 1,300 individuals with minor trichiasis from Amhara Regional State, Ethiopia were recruited and randomly assigned (1:1) to receive trichiasis surgery or epilation. The epilation group were given new forceps and epilation training. The surgical group received trichiasis surgery. Participants were examined every 6 months for 2 years by clinicians masked to allocation, with 93.5% follow-up at 24 months. The primary outcome measure ("failure") was ≥five lashes touching the eye or receiving trichiasis surgery during 24 months of follow-up, and was assessed for noninferiority with a 10% prespecified noninferiority margin. Secondary outcomes included number of lashes touching, time to failure, and changes in visual acuity and corneal opacity. Cumulative risk of failure over 24 months was 13.2% in the epilation group and 2.2% in the surgical group (risk difference = 11%). The 95% confidence interval (8.1%-13.9%) includes the 10% noninferiority margin. Mean number of lashes touching the eye was greater in the epilation group than the surgery group (at 24 months 0.95 versus 0.09, respectively; p<0.001); there was no difference in change in visual acuity or corneal opacity between the two groups. CONCLUSIONS This trial was inconclusive regarding inferiority of epilation to surgery for the treatment of minor trichiasis, relative to the prespecified margin. Epilation had a comparable effect to surgery on visual acuity and corneal outcomes. We suggest that surgery be performed whenever possible but epilation be used for treatment of minor trichiasis patients without access to or declining surgery. TRIAL REGISTRATION ClinicalTrials.gov NCT00522912.
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20
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Keenan JD, Moncada J, Gebre T, Ayele B, Chen MC, Yu SN, Emerson PM, Stoller NE, McCulloch CE, Gaynor BD, Schachter J. Chlamydial infection during trachoma monitoring: are the most difficult-to-reach children more likely to be infected? Trop Med Int Health 2011; 17:392-6. [PMID: 22122734 DOI: 10.1111/j.1365-3156.2011.02919.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
OBJECTIVES During mass antibiotic distributions for trachoma, certain individuals are difficult to locate and go untreated. These untreated individuals may serve as a source of community reinfection. The importance of this difficult-to-locate, untreated population is unclear. We sought to determine whether individuals who are difficult to locate were more likely to be infected with ocular chlamydia than those who were easier to locate. METHODS We monitored 12 Ethiopian communities 1 year after a third annual mass azithromycin treatment for trachoma. Conjunctival swabbing for chlamydial RNA was performed in a random sample of children from each community. If insufficient numbers of children were enrolled on the first monitoring day, we returned on subsequent days. RESULTS Of the 12 communities, 10 required more than one monitoring day. On average, 16.1% (95% CI 7.9-30.0) of children were enrolled after the initial day. Evidence of chlamydia was found in 7.1% (95% CI 2.7-17.4) of 0- to 9-year-old children. No ocular swabs collected after the initial day were positive for chlamydial RNA. Children examined after the initial monitoring day were significantly less likely to have ocular chlamydial infection than children seen on the initial day; Mantel-Haenszel common OR = 0 (95% CI 0-0.77). CONCLUSIONS In a setting of repeated annual mass azithromycin treatments, after approximately 80% of individuals have been located in a community, extra efforts to find absent individuals may not yield significantly more cases of ocular chlamydia.
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Affiliation(s)
- Jeremy D Keenan
- Francis I. Proctor Foundation, San Francisco, CA 94143-0412, USA.
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21
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Rajak SN, Habtamu E, Weiss HA, Bedri A, Gebre T, Bailey RL, Mabey DCW, Khaw PT, Gilbert CE, Emerson PM, Burton MJ. The clinical phenotype of trachomatous trichiasis in Ethiopia: not all trichiasis is due to entropion. Invest Ophthalmol Vis Sci 2011; 52:7974-80. [PMID: 21896855 DOI: 10.1167/iovs.11-7880] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
PURPOSE Trachomatous trichiasis (TT) is usually described as a cicatricial entropion of the upper lid; however, other forms of trichiasis have been reported. This variation in clinical phenotype is potentially important for treatment guidelines. Therefore, this study was conducted to investigate the range of disease type and severity encompassed by TT. METHODS Individuals presenting with TT to surgical treatment campaigns were examined by a single ophthalmologist using the Detailed WHO Trachoma Grading System. Additional features were graded, including type of trichiatic lashes (metaplastic, misdirected, and entropic), lower lid trichiasis, entropion severity, and lid margin mucocutaneous junction (MCJ) position. RESULTS Recruited were 2556 individuals with previously unoperated TT in at least one eye (4310 eyes). The median number of lashes touching the eye was 2 (range, 0 [epilating]-133). Entropion was absent or mild in 2328 (54.0%) eyes, moderate in 1259 (29.2%) eyes, and severe in 723 (16.8%) eyes. Trichiatic lashes were predominantly metaplastic or misdirected (80.2%), rather than secondary to entropion; 4204 (97.7%) had anteroplacement of the MCJ; and lower lid trichiasis was present in 494 (11.5%). Entropion was more severe among those with a low BMI, those who were female, those aged less than 50 years, and those with moderate to severe conjunctival inflammation, central corneal opacity, and severe conjunctival scarring. CONCLUSIONS Many patients with TT have minimal or no entropion. The trichiasis is frequently attributable to metaplastic or misdirected eyelashes. The results of tarsal rotation surgery in TT patients without manifest entropion should be investigated and potentially alternative treatment strategies evaluated.
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Affiliation(s)
- Saul N Rajak
- The London School of Hygiene and Tropical Medicine, London, United Kingdom
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22
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Rajak SN, Habtamu E, Weiss HA, Bedri A, Gebre T, Genet A, Khaw PT, Bailey RL, Mabey DCW, Gilbert CE, Emerson PM, Burton MJ. Epilation for trachomatous trichiasis and the risk of corneal opacification. Ophthalmology 2011; 119:84-9. [PMID: 21975041 PMCID: PMC3694301 DOI: 10.1016/j.ophtha.2011.06.045] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2010] [Revised: 06/29/2011] [Accepted: 06/29/2011] [Indexed: 11/14/2022] Open
Abstract
Purpose Eight million people have trachomatous trichiasis (TT). The World Health Organization (WHO) recommends entropion surgery for TT regardless of severity. However, epilation is widely practiced for treating minor TT (1–5 lashes touching the globe). We report the frequency and effectiveness of patient-initiated epilation and its relationship to corneal opacity. Design Cross-sectional baseline data of individuals recruited to 2 randomized, clinical trials. Participants We included 2556 individuals (4310 eyes) with previously unoperated TT in ≥1 eye. Methods A single ophthalmologist examined all participants for signs of trachoma using WHO grading systems with additional assessment of entropion grading, location and number of trichiatic lashes, and evidence of epilation. A questionnaire enquired about epilation practices. Main Outcome Measures The association between epilation and degree of corneal opacity. Epilation practices of TT patients. Results Central corneal scarring was present in 1436 (33%) eyes. Entropion was absent/mild in 2328 (54%) eyes, moderate in 1259 (29.2%), and severe in 723 (16.8%). The median number of lashes touching the eye was 2 (interquartile range, 1–5; range, 0–133). There was clinical evidence of epilation in 3018 (70%) eyes, of which 738 (24%) were successfully epilated (no lashes touching globe). Epilation was performed frequently (at least monthly in 3311 [76.8%] eyes), by someone other than the patient (92.8%), and using locally made forceps (88.9%). Controlling for age and degree of entropion, successful epilation was associated with less corneal opacity (odds ratio [OR], 0.61; 95% confidence interval [CI]. 0.43–0.88; P = 0.007). The association was only significant in patients with severe entropion (OR, 0.07; 95% CI, 0.02–0.25; P<0.005). Conclusions We found an association between successful epilation and less central corneal opacity. This indicates the importance of preventing eyelashes from touching the cornea, particularly in individuals with severe entropion. This is a cross-sectional study; therefore, a causative relationship cannot be concluded. However, the results suggest that among patients who decline or are unable to access surgery, and perhaps in minor TT where the management remains controversial, the provision of high-quality forceps and epilation training may be beneficial. Financial Disclosure(s) The authors have no proprietary or commercial interest in any of the materials discussed in this article.
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Affiliation(s)
- Saul N Rajak
- The London School of Hygiene and Tropical Medicine, London, United Kingdom.
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Grimes CE, Bowman KG, Dodgion CM, Lavy CBD. Systematic Review of Barriers to Surgical Care in Low-Income and Middle-Income Countries. World J Surg 2011; 35:941-50. [DOI: 10.1007/s00268-011-1010-1] [Citation(s) in RCA: 253] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Jacobsen KH, Bankoski AJ. Predictors of compliance with scheduled surgery in rural Guatemala. Int Health 2010; 2:206-11. [DOI: 10.1016/j.inhe.2010.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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The excess burden of trachomatous trichiasis in women: a systematic review and meta-analysis. Trans R Soc Trop Med Hyg 2009; 103:985-92. [DOI: 10.1016/j.trstmh.2009.03.012] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2009] [Revised: 03/11/2009] [Accepted: 03/11/2009] [Indexed: 11/22/2022] Open
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Nagpal G, Dhaliwal U, Bhatia MS. Barriers to Acceptance of Intervention among Patients with Trachomatous Trichiasis or Entropion Presenting to a Teaching Hospital. Ophthalmic Epidemiol 2009; 13:53-8. [PMID: 16510347 DOI: 10.1080/09286580500428518] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
PURPOSE To determine the barriers to therapeutic intervention in patients with trachomatous trichiasis or entropion. METHODS Prospective study over one year in 60 patients with trachomatous trichiasis or entropion presenting to a teaching hospital. The outcome measure was reported barriers to uptake of intervention using a questionnaire. The data were analysed using chi-square and Fisher's exact tests. Patient characteristics were correlated with barriers using univariate and multivariate analysis. RESULTS The major barriers (operative in > 60% of patients) were illiteracy (66.7%), ignorance regarding treatment (65.0%), and fear of surgery (63.3%). Duration of symptoms in 43 females and 17 males ranged from 0.5 to 240 months (mean 30.2 +/- 45.82). Females reported significantly more barriers (average 5.8 +/- 1.88) than males (average 4.6 +/- 1.97; p = 0.03). Shorter duration was significantly related to perceived expense (p = 0.008). Patients aged =55 years more often cited young children as a barrier (p = 0.02). CONCLUSIONS Encouraging patients who have undergone intervention to share their experiences with community members, providing intervention in patients' villages, community involvement with patients who live alone and making gender-sensitive medical programmes might be useful in reducing the fear of surgery and enhancing awareness and uptake of intervention. Future studies must identify barriers in their regions so that attempts can be directed to overcoming them so as to reduce the blinding and non-blinding burden of trachoma.
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Affiliation(s)
- Gaurav Nagpal
- Department of Ophthalmology, University College of Medical Sciences and Guru Teg Bahadur Hospital, Delhi-95, India
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Krishnatray P, Bisht SS, Guha K, Pinto S. Development of a Scale to Determine Barriers to Paediatric Eye Care. JOURNAL OF HEALTH MANAGEMENT 2008. [DOI: 10.1177/097206340801000302] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Childhood blindness has huge socio-economic costs. India's commitment to the goal of vision 2020 has put priority to elimination of preventable blindness in children. Although adult blindness has been extensively studied, the literature is seen to be generally lacking in providing in-depth understanding of childhood blindness, especially about barriers that impede access to eye care. The present study attempts to fill this gap. This article explains the procedure adopted in developing a scale to determine the barriers to paediatric eye care. A 22-item barrier to paediatric eye care scale was specifically developed. The scale, along with the full-length questionnaire, was pre-tested and later administered to 207 parent-respondents at Sadguru Netra Chikitshalaya (SNC), Chitrakoot, in the state of Madhya Pradesh (India). A fiveround factor analysis variable deletion process resulted in a three factor structure. Although this procedure reduced the number of items in the scale from 22 to 9, the variance explained by the factors increased from 61 to 78 per cent. The three factors were labelled as economic, logistic and perception of service. Regression analyses of the three factors/barriers, economic, logistic and belief, showed significant results. Further analysis showed that parents’ demographic profile and health seeking behaviour significantly explained the economic barrier. Health seeking behaviour was a significant predictor of logistic barrier.
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Affiliation(s)
- Pradeep Krishnatray
- Pradeep Krishnatray is Director, Jagran Institute of Communication and Management, Bhopal, and President, CREED. He was the founder-editor of the Journal of Creative Communications (Sage); C6 and, Meera Apts., Bashirbagh, Hyderabad 500 029
| | - Shailendra S. Bisht
- Shailendra S. Bisht is Assistant Professor at ICFAI Business School, Hyderabad–500034
| | - Kamalesh Guha
- Kamalesh Guha, ORBIS Indian Country Office, C-10, Gulmohar Park, New Delhi–110 049
| | - Sangeeta Pinto
- Sangeeta Pinto, ORBIS Indian Country Office, C-10, Gulmohar Park, New Delhi–110 049
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Habte D, Gebre T, Zerihun M, Assefa Y. Determinants of uptake of surgical treatment for trachomatous trichiasis in North Ethiopia. Ophthalmic Epidemiol 2008; 15:328-33. [PMID: 18850469 DOI: 10.1080/09286580801974897] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND Surgery for trachomatous trichiasis prevents blindness. However people still decline surgery despite the availability of services in nearby health facilities. OBJECTIVES To assess what proportion of cases of trichiasis had surgical treatment and to investigate the determinants of uptake of surgery. METHODS Eight villages in Enebse Sarmidir district of Amhara Region-Ethiopia were randomly selected and all self-reported cases of trichiasis were approached. Both operated and un-operated trichiasis cases were interviewed using structured questionnaires. RESULT The study employed a case control study design with patients with untreated trichiasis being cases (135) and those operated, controls (141). The main reasons given for not having surgery were burden of household tasks, indirect cost of surgery, lack of companion and fear of surgery. Uptake of surgery was found to rise with duration of illness (Chi Square for trend = 26.62, P < 0.05). Longer walking distance (more than one hour) to the nearby health facility was a negative predictor of uptake of surgical treatment (adjusted odd ratio 0.31, 95% confidence interval 0.15-0.67). CONCLUSION Behavior change communication interventions targeted on early uptake of surgery are very important. Village-based surgical service provision may be worthwhile in settings of high blinding trachoma burden.
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Affiliation(s)
- Dereje Habte
- Faculty of Medicine, Addis Ababa University, Addis Ababa, Ethiopia.
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Abstract
Trachoma is a keratoconjunctivitis caused by ocular infection with Chlamydia trachomatis. Repeated or persistent episodes lead to increasingly severe inflammation that can progress to scarring of the upper tarsal conjunctiva. Trichiasis develops when scarring distorts the upper eyelid sufficiently to cause one or more lashes to abrade the cornea, scarring it in turn and causing blindness. Active trachoma affects an estimated 84 million people; another 7.6 million have end-stage disease, of which about 1.3 million are blind. Trachoma should stand on the brink of extinction thanks to a 1998 initiative launched by WHO--the Global Elimination of Trachoma by 2020. This programme advocates control of trachoma at the community level with four inter-related population-health initiatives that form the SAFE strategy: surgery for trichiasis, antibiotics for active trachoma, facial cleanliness, and environmental improvement. Evidence supports the effectiveness of this approach, and if current world efforts continue, blinding trachoma will indeed be eliminated by 2020.
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Affiliation(s)
- Heathcote R Wright
- Centre for Eye Research Australia, University of Melbourne, WHO Collaborating Centre for the Prevention of Blindness, East Melbourne, VIC, Australia.
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Mahande M, Tharaney M, Kirumbi E, Ngirawamungu E, Geneau R, Tapert L, Courtright P. Uptake of trichiasis surgical services in Tanzania through two village-based approaches. Br J Ophthalmol 2006; 91:139-42. [PMID: 17050579 PMCID: PMC1857633 DOI: 10.1136/bjo.2006.103374] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AIM To determine the effectiveness of village-based strategies (using school teachers and village leaders) to increase the use of surgical services. METHODS A cohort study was conducted in Tanzania using two village strategies (village leader and school teachers); trichiasis surgical uptake and the factors associated with uptake were measured after 1 year. RESULTS The trichiasis surgical coverage at baseline was 16.9%; 200 patients who needed surgery were identified. One year later, we were able to re-examine and interview 163 of these patients. The surgical uptake among these patients was 44.8% (95% CI 37.2% to 52.4%). Patients in the school-teacher programme had a 36.5% uptake compared with 52.1% for those in the village-leader programme. No difference was observed in uptake by age or sex. Uptake was highest among those coming from multiple-generation households and those with more household wealth. Of the 90 people who still had not had surgery, 20 (22.2%) reported seeking surgery, but failing to receive it because of barriers at the provider side. CONCLUSIONS Improved surgical uptake for trachomatous trichiasis was achieved by using village-based promotion efforts and surgical services at existing health clinics. Even with free surgery at health clinics, indirect costs and social support barriers limit utilisation by the most vulnerable, the poorest and those living in single-generation households. Problems at the provider level also create barriers for patients who need surgery.
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Affiliation(s)
- Michael Mahande
- Kilimanjaro Centre for Community Ophthalmology, Tumaini University, PO Box 2254, Moshi, Tanzania
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Dhaliwal U, Nagpal G, Bhatia MS. Health-related quality of life in patients with trachomatous trichiasis or entropion. Ophthalmic Epidemiol 2006; 13:59-66. [PMID: 16510348 DOI: 10.1080/09286580500473803] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
PURPOSE To determine the health-related quality of life in patients with trachomatous trichiasis or entropion, before and after intervention. METHODS A prospective, case-control, interventional study. Health-related quality of life was evaluated in 60 patients with trachomatous trichiasis or entropion, before and after intervention, and 60 age- and gender-matched controls without trichiasis or entropion, using the WHOQOL-Bref questionnaire. Thirty patients and controls had vision < 6/18, while 30 had vision = 6/18 in the better eye. The WHOQOL-Bref assesses four domains of quality of life: physical health (1), psychological health (2), social relationships (3), and environment (4). Domain scores of patients and controls and of patients before and after intervention were compared using Student's t-test. Patient characteristics were correlated with domain scores using Pearson's correlation. RESULTS Quality of life was poorer than that of controls in domains 1 and 2 for patients with vision < 6/18 in the better eye (p < 0.001, p = 0.001, respectively), and in domains 1, 2 and 4 for patients with vision = 6/18 (p < 0.001, p < 0.001, p = 0.01, respectively). Scores improved after intervention in all domains except domain 3, even though vision did not improve. CONCLUSIONS Patients with trachomatous trichiasis or entropion suffer in the physical, psychological and environmental domains of health-related quality of life even when vision is normal. Timely intervention is essential not only to prevent corneal blindness but also to reduce the suffering caused by the non-visual symptoms. Future studies must identify barriers to therapeutic intervention, and attempts should be directed at overcoming them so as to reduce the non-blinding burden of trachoma.
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Affiliation(s)
- Upreet Dhaliwal
- Department of Ophthalmology, University College of Medical Sciences and Guru Teg Bahadur Hospital, Delhi-95, India.
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West ES, Munoz B, Imeru A, Alemayehu W, Melese M, West SK. The association between epilation and corneal opacity among eyes with trachomatous trichiasis. Br J Ophthalmol 2006; 90:171-4. [PMID: 16424528 PMCID: PMC1860176 DOI: 10.1136/bjo.2005.075390] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
AIM To examine the association between epilation and corneal opacity (CO) among trichiasis patients presenting for surgery. METHODS Cross sectional data from the STAR trial were utilised. Patients presenting for trichiasis surgery in Wolayta Zone, Ethiopia, were evaluated for current trichiasis status. Number of inturned lashes, evidence of epilation, level of entropion, trichiasis duration, and CO were collected. The primary outcome was prevalence of CO, stratified by entropion and epilation status. RESULTS Approximately 10% of eyes with mild entropion had CO, regardless of epilation status. Among eyes with moderate entropion, epilated eyes were less likely to have CO than non-epilated eyes (21% v 34% p = 0.002). The same association was seen in eyes with severe entropion: 43% of epilated eyes while 74% of non-epilated eyes had CO (p<0.0001). Presence of CO increased with age. Adjusted models showed a protective effect of epilation in eyes with moderate or severe entropion (OR: 0.51; 95% CI: 0.32 to 0.83 and OR: 0.24; 95% CI: 0.13 to 0.45, respectively). Among eyes with mild entropion there was no difference in the prevalence of CO comparing eyes that were epilated with those that were not epilated. CONCLUSION Entropion was the most significant predictor of CO. Cross sectional associations suggest that epilation may not be helpful for eyes with mild entropion, but may offer protection against CO in eyes with moderate to severe entropion. Epilation should not be a substitute for trichiasis surgery, however, as 43% of eyes with severe entropion that were epilated still had CO.
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Affiliation(s)
- E S West
- Dana Center for Preventive Ophthalmology, Johns Hopkins School of Medicine, 116 Wilmer Building, 600 N Wolfe Street, Baltimore, MD 21287, USA.
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West S, Nguyen MP, Mkocha H, Holdsworth G, Ngirwamungu E, Kilima P, Munoz B. Gender equity and trichiasis surgery in the Vietnam and Tanzania national trachoma control programmes. Br J Ophthalmol 2004; 88:1368-71. [PMID: 15489474 PMCID: PMC1772400 DOI: 10.1136/bjo.2004.041657] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AIMS To calculate the gender distribution of trichiasis cases in trachoma communities in Vietnam and Tanzania, and the gender distribution of surgical cases, to determine if women are using surgical services proportional to their needs. METHODS Population based data from surveys done in Tanzania and Vietnam as part of the national trachoma control programmes were used to determine the rate of trichiasis by gender in the population. Surgical records provided data on the gender ratio of surgical cases. RESULTS The rates of trichiasis in both countries are from 1.4-fold to sixfold higher in females compared to males. In both countries, the female to male rate of surgery was the same or even higher than the female to male rate of trichiasis in the population. CONCLUSIONS These data provide assurance of gender equity in the provision and use of trichiasis surgery services in the national programmes of these two countries. Such simple analyses should be used by other programmes to assure gender equity in provision and use of trichiasis surgery services.
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Affiliation(s)
- S West
- Dana Center for Preventive Ophthalmology, Johns Hopkins University, Baltimore, MD, USA.
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Abstract
Trachoma accounts for 15% of blindness worldwide, affecting the world's poorest communities. How can the disease be controlled?
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Abstract
Trachoma is the leading infectious cause of blindness worldwide. The World Health Organization (WHO) estimated that approximately 5.9 million persons are blind or have severe vision-loss as a result of trachoma, and another 10 million are at high risk. Trachoma preferentially affects the most deprived communities, and within these communities, women and children bear the brunt of the burden. In recent years, there has been a renewed focus on research and heightened enthusiasm for strengthening trachoma control programs in afflicted countries. WHO has convened an alliance of member countries, non-governmental organizations, and other partners for the Global Elimination of Blinding Trachoma by the year 2020, and endorsed the multi-faceted SAFE strategy for trachoma control. SAFE-Surgery, Antibiotics, Face-washing, and Environmental improvement-has incorporated sound research on elements likely to reduce trachoma, and trachomatis blindness, in endemic communities. This review summarizes current knowledge about trachoma and its causative agent, Chlamydia trachomatis, the epidemiology and risk factors for trachoma as a prelude to reviewing the SAFE strategy. While ongoing research to support the knowledge base for SAFE must continue to be a priority, the full implementation of SAFE is the best hope for countries to reduce the global burden of blindness from this preventable cause.
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Affiliation(s)
- Sheila K West
- Dana Center for Preventive Ophthalmology, Johns Hopkins University School of Medicine, Wilmer Room 129, 600 North Wolfe Street, Baltimore, MD 21287, USA.
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Soares OE, Cruz AAV. Community-based transconjunctival marginal rotation for cicatricial trachoma in Indians from the Upper Rio Negro basin. Braz J Med Biol Res 2004; 37:669-74. [PMID: 15107928 DOI: 10.1590/s0100-879x2004000500007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The objective of the present study was to describe, for the first time in Brazil, the use by a non-ophthalmologist of a community-based marginal rotation procedure by a posterior approach in the indigenous population from the Upper Rio Negro basin. Seventy-three upper eyelids of 46 Indians (11 males and 35 females) with cicatricial upper eyelid entropion and trichiasis were operated in the Indian communities using a marginal rotational procedure by a posterior approach by a non-ophthalmologist physician who had general surgery experience but only an extremely short period (one week) of ophthalmic training. Subjects were reevaluated 6 months after surgery. Results were classified according to the presence and location of residual trichiasis and symptoms were assessed according to a three-level subjective scale (better, worse or no change). Fifty-six eyelids (76.7%) were free from trichiasis, whereas residual trichiasis was observed in 17 eyelids (23.3%) of 10 subjects. In these cases, trichiasis was either lateral or medial to the central portion of the lid. Of these 10 patients, only 4 reported that the surgery did not improve the irritative symptoms. We conclude that marginal rotation by a posterior approach is an effective and simple procedure with few complications, even when performed by non-specialists. Due to its simplicity the posterior approach is an excellent option for community-based upper eyelid entropion surgery.
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Affiliation(s)
- O E Soares
- Federação das Organizações dos Indios do Rio Negro, Sao Gabriel da Cachoeira, AM, Brazil
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Abstract
Trachoma, the second leading cause of blindness worldwide, differentially affects the poorest communities, which may have the least access to resources. With the establishment of the Global Elimination of Blinding Trachoma by 2020 (GET 2020) goal, the World Health Organization has set an ambitious target for country programs. The currently recommended surgery for trichiasis/entropion, antibiotics for active disease, facial cleanliness, and environmental change to reduce transmission (SAFE) strategy targets all key elements believed to be necessary for a short- and long-term intervention program. This report reviews the need for a multi-faceted strategy, and the evidence supporting the elements of SAFE. Concerns about the implementation are discussed. Additional research is suggested that will enhance the implementation of the SAFE strategy. In the current climate of significant political and social momentum for trachoma control, the SAFE strategy is a safe bet to accomplish the elimination of blinding trachoma.
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Affiliation(s)
- Sheila K West
- Dana Center for Preventive Ophthalmology, Johns Hopkins School of Medicine, Baltimore, Maryland 21287, USA.
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Abstract
Trachoma is the most common infectious cause of blindness. It is caused by ocular serovars of Chlamydia trachomatis. Transmission is favoured in poor communities, where crowding is common and access to water and sanitation inadequate. Repeated reinfection over many years causes dense scarring of the upper eyelid. The resultant inversion of the lashes abrades the eyeball, and the abrasion leads to corneal opacification and visual impairment. The host immune response is probably at least partly the cause of this process. The "SAFE" strategy is used for the control of trachoma: surgery for in-turned lashes, antibiotics for active disease, facial cleanliness, and environmental improvement. The demonstration that a single oral dose of the antibiotic azithromycin is as effective as 6 weeks of topical tetracycline was an important advance in trachoma control. By means of the SAFE strategy, WHO and its partners aim to eliminate trachoma as a public-health problem by the year 2020.
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A critical review of the SAFE strategy for the prevention of blinding trachoma. THE LANCET. INFECTIOUS DISEASES 2003; 3:372-81. [PMID: 12781509 DOI: 10.1016/s1473-3099(03)00659-5] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Trachoma is an ocular disease caused by repeated infection with Chlamydia trachomatis. It is the leading cause of infectious blindness globally, responsible for 5.9 million cases of blindness. Although trachomatous blindness is untreatable, it is eminently possible to prevent and the World Health Organization promotes the use of the SAFE strategy (surgery to treat end-stage disease, antibiotics to reduce the reservoir of infection, facial cleanliness, and environmental improvement to reduce transmission of C trachomatis) for this purpose. In this review we have assessed the evidence base supporting the elements of the SAFE strategy. We find strong support for the efficacy of the surgery and antibiotics components, although the optimal antibiotic regimens have not yet been established. The evidence for an effect of health education and environmental improvement is weaker, and depends mostly on cross-sectional observational studies.
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Frick KD, Mecaskey JW. Resource allocation to prevent trachomatous low vision among older individuals in rural areas of less developed countries. Doc Ophthalmol 2002; 105:1-21. [PMID: 12152798 DOI: 10.1023/a:1015767415795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Trachomatous low vision can be prevented by treating or preventing infection or through surgery to treat trichiasis. Resource allocation to prevent trachomatous low vision should be directed to those interventions that are the most cost-effective. In order to assess which of many potential interventions are the more cost-effective, data on the epidemiology of the disease, the effectiveness of community- and facility-based interventions, and the cost of the interventions are required. This paper provides a stylized model of the path from risk of infection through disease to trachomatous low vision or blindness that delineates the points at which interventions may occur and for which data are required. The literature reveals a considerable amount of data regarding the epidemiology of the trachoma and its sequelae but little on the effectiveness of community-based interventions and only one study that measured costs directly. More data are needed to assist policy makers and international program partners who seek to make efficient resource allocation decisions in an effort to eliminate trachoma as a cause of incident blindness in the developing countries in which trachomatous blindness remains prevalent.
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Affiliation(s)
- Kevin D Frick
- Johns Hopkins University, Bloomberg School of Public Health, Baltimore, MD 21205-1901, USA.
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Bowman RJC, Faal H, Myatt M, Adegbola R, Foster A, Johnson GJ, Bailey RL. Longitudinal study of trachomatous trichiasis in the Gambia. Br J Ophthalmol 2002; 86:339-43. [PMID: 11864895 PMCID: PMC1771046 DOI: 10.1136/bjo.86.3.339] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AIM Investigation of the natural history of trachomatous trichiasis in the Gambia and of the outcome of self epilation and surgery for the condition. METHODS A 1 year longitudinal study of 190 subjects with trichiasis was performed. Major trichiasis cases (five lashes or more) were referred for surgery and minor trichiasis cases were advised to epilate. Outcome measures included progression of trichiasis and corneal scarring; attendance for and results of surgery. RESULTS 34 of 148 (23%, 95% CI 16 to 31) subjects with major trichiasis attended for surgery over the year. Progression from minor to major trichiasis occurred in 18 of 55 subjects (33%, 95% CI 21 to 47). Progression of corneal scarring occurred in 60 of 167 patients (36%, 95% CI 29 to 44). Clinically active trachoma and conjunctival bacterial isolation predicted progression of corneal opacity. Surgery was successful in 39 of 54 (72%) eyes. CONCLUSIONS Despite the overall decline in trachoma in the Gambia, patients with both minor and major trichiasis remain at risk of developing corneal opacity. Active trachomatous inflammation and additional infection with bacteria may accelerate this process. Antibiotic treatment for trichiasis patients (in addition to surgery) should be investigated. Surgery for minor trichiasis may be indicated. Regular audit of surgical results is necessary with retraining where needed.
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Affiliation(s)
- R J C Bowman
- International Centre for Eye Health, 11-43 Bath Street, London EC1V 9EL, UK.
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Abstract
AIMS To assess the relation between a country's economic developmental status and its prevalence of blindness. METHODS Available epidemiological data on worldwide visual loss and its causes compiled by the World Health Organization were reviewed. Findings were compared with economic development data from the involved countries and regions. Analysis was completed in view of the socioeconomic status of each country and region. RESULTS Analysis of the global distribution of blindness indicates a trend of higher prevalence existing in developing countries with lower per capita income. Preventable causes of blindness (that is, cataract, trachoma) are also more prevalent in these countries. CONCLUSIONS Because economic development is shown to be a factor in blindness, programmes for blindness prevention should not be the only route to the elimination of unnecessary blindness throughout the world. Concomitant economic development is also necessary to reduce and eventually eradicate much of the preventable and avoidable causes of blindness.
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Affiliation(s)
- V H Ho
- Tufts University, School of Medicine, Boston, MA, USA
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Bowman RJ, Jatta B, Faal H, Bailey R, Foster A, Johnson GJ. Long-term follow-up of lid surgery for trichiasis in the Gambia: surgical success and patient perceptions. Eye (Lond) 2000; 14:864-8. [PMID: 11584844 DOI: 10.1038/eye.2000.238] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Surgery is an important component of the SAFE strategy which has been shown to improve visual acuity. There are limited data on long-term surgical success and patient perceptions and satisfaction. A sample of patients from the Gambia who had undergone previous lid surgery for trichiasis were therefore examined for recurrence of trichiasis and interviewed for patient satisfaction. METHODS Health centre surgical records and community screening were used to identify patients who had undergone previous lid surgery. Consenting patients were examined and a questionnaire administered. Kaplan-Meier survival plots were constructed for recurrence of trichiasis. RESULTS Sixty-five subjects were recruited. Median age at surgery was 50 years. Median time since surgery was 7 years. Fifty-two of 115 (45%) operated eyes were free of trichiasis at follow-up and 23 of 65 (35%) patients had not suffered recurrent trichiasis in an operated eye. Median time from surgery to recurrence of trichiasis was estimated as 10.0 years (95% CI 3.7-16.3). Recurrent trichiasis was not significantly associated with visual impairment or blindness at follow-up. The following patient perceptions were reported: satisfaction with surgery (88%), less discomfort than before surgery (93%), improved vision (83%), work easier (38%), worth the expenditure (94%), would recommend it to others (93%), had recommended it to others (38%), experienced intra-operative pain (26%) and experienced post-operative pain (26%). CONCLUSION Factors affecting surgical success, including surgical technique and re-exposure to infection, are discussed. This study provides important preliminary data for programme planners but larger prospective studies are required.
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Affiliation(s)
- R J Bowman
- International Centre for Eye Health, London, UK
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Bowman RJ, Soma OS, Alexander N, Milligan P, Rowley J, Faal H, Foster A, Bailey RL, Johnson GJ. Should trichiasis surgery be offered in the village? A community randomised trial of village vs. health centre-based surgery. Trop Med Int Health 2000; 5:528-33. [PMID: 10995093 DOI: 10.1046/j.1365-3156.2000.00605.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
INTRODUCTION Surgery for trachomatous trichiasis prevents blindness and is advocated by the WHO as part of the SAFE strategy for the global elimination of trachoma. We conducted a randomised community trial to investigate the effect of providing surgery in villages on surgical uptake in The Gambia. METHODS 56 villages from two divisions were assigned to eight pairs of clusters matched by geographical division and proximity. One cluster from each pair was randomly assigned to receive village-based surgery and the other cluster health centre-based surgery. Outcome measures were uptake rates and surgical results after 1 week and 3 months. The paired t-test was used to analyse the results. RESULTS Overall uptake was 66% in the village-based clusters and 44% in the health centre-based clusters. Subjects in the village-based surgery arm had significantly shorter journey times (P = 0.01) and lower costs (P = 0.002). The mean difference in absolute acceptance rates of surgery was 20% better in village-based clusters (95% CI -9 to + 49%, P = 0.15), which would equate to an improvement of 45% (95% CI -20% to 120%) on the average acceptance rates of 44% in the health centre-based group. CONCLUSION These results strongly suggest better surgical uptake when surgery is provided in patients' villages due to lower cost to the patient, time saved and less fear of the operation.
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Affiliation(s)
- R J Bowman
- International Centre for Eye Health, London, UK.
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