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1.
Matern Child Health J ; 28(5): 847-857, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38194129

RESUMEN

INTRODUCTION: Concerns about safety and side effects from contraceptives are widespread and related to reluctance to use them. Measuring these concerns is an essential component of understanding contraceptive decision-making and guiding contraceptive and interpregnancy clinical care. METHODS: We used qualitative research and item response theory to develop and test a psychometric instrument to measure contraceptive concerns and beliefs. We developed 55 candidate scale items and tested them among 572 adolescents and adults across nine California healthcare facilities in 2019-2020. We derived a 6-item scale and assessed differences by age and social determinants of health with multivariable regression. RESULTS: In qualitative data, participants voiced both concerns and positive beliefs about contraception. Quantitative survey respondents were aged 21 years on average, and 24% were parous. Over half (54%) worried contraception has dangerous side effects, and 39% worried it is unnatural. The mean Contraceptive Concerns score, increasing with higher concerns, was 1.85 (SD: 1.00, range 0-4, α = 0.81). Items fit a partial credit item response model and met prespecified criteria for internal structure validity. Contraceptive use declined with increasing Concerns score (adjusted prevalence ratio [aPR] = 0.81 [0.72-0.92]). Scores were elevated among Black (mean: 2.06; aß = 0.34 [0.09, 0.59]) and Multiracial or other race (2.11; aß = 0.34 [0.02, 0.66]) respondents vs. White (1.66), but not Latinx respondents (1.81; aß = 0.11 [- 0.11, 0.33]). Scores were also elevated among participants with lower maternal education (high school/Associate's 1.89 versus college 1.60; aß = 0.28 [0.04, 0.53]). DISCUSSION: The psychometrically robust Concerns instrument can be used in research to measure autonomous contraceptive decision-making and to design person-centered care.


Asunto(s)
Anticoncepción , Anticonceptivos , Adulto , Adolescente , Humanos , Familia , Encuestas y Cuestionarios , Toma de Decisiones , Conducta Anticonceptiva
2.
J Gen Intern Med ; 38(6): 1366-1374, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-36070169

RESUMEN

BACKGROUND: Patient agency in contraceptive decision-making is an essential component of reproductive autonomy. OBJECTIVE: We aimed to develop a psychometrically robust measure of patient contraceptive agency in the clinic visit, as a measure does not yet exist. DESIGN: For scale development, we generated and field tested 54 questionnaire items, grounded in qualitative research. We used item response theory-based methods to select and evaluate scale items for psychometric performance. We iteratively examined model fit, dimensionality, internal consistency, internal structure validity, and differential item functioning to arrive at a final scale. PARTICIPANTS: A racially/ethnically diverse sample of 338 individuals, aged 15-34 years, receiving contraceptive care across nine California clinics in 2019-2020. MAIN MEASURES: Contraceptive Agency Scale (CAS) of patient agency in preventive care. KEY RESULTS: Participants were 20.5 mean years, with 36% identifying as Latinx, 26% White, 20% Black, 10% Asian/Native Hawaiian/Pacific Islander. Scale items covered the domains of freedom from coercion, non-judgmental care, and active decision-making, and loaded on to a single factor, with a Cronbach's α of 0.80. Item responses fit a unidimensional partial credit item response model (weighted mean square statistic within 0.75-1.33 for each item), met criteria for internal structure validity, and showed no meaningful differential item functioning. Most participants expressed high agency in their contraceptive visit (mean score 9.6 out of 14). One-fifth, however, experienced low agency or coercion, with the provider wanting them to use a specific method or to make decisions for them. Agency scores were lowest among Asian/Native Hawaiian/Pacific Islander participants (adjusted coefficient: -1.5 [-2.9, -0.1] vs. White) and among those whose mothers had less than a high school education (adjusted coefficient; -2.1 [-3.3, -0.8] vs. college degree or more). CONCLUSIONS: The Contraceptive Agency Scale can be used in research and clinical care to reinforce non-coercive service provision as a standard of care.


Asunto(s)
Atención Ambulatoria , Anticonceptivos , Humanos , Psicometría , Investigación Cualitativa , Encuestas y Cuestionarios , Reproducibilidad de los Resultados
3.
Reprod Health ; 19(1): 99, 2022 Apr 22.
Artículo en Inglés | MEDLINE | ID: mdl-35459218

RESUMEN

BACKGROUND: Providers faced challenges in maintaining patient access to contraceptive services and public health safety during the COVID-19 pandemic. Due to increased barriers to care, providers increasingly used telemedicine for contraceptive care, curbside services, mail-order pharmacies, and on-line or home delivery of contraceptive methods, including self-administration of subcutaneous depo medroxyprogesterone acetate (DMPA-SQ). To better understand how reproductive health providers adapted service provision during the pandemic, this study assessed clinical practice changes and strategies providers adopted throughout the United States to maintain contraceptive care, particularly when clinics closed on-site, and the challenges that remained in offering contraceptive services, especially to marginalized patient populations. METHODS: We surveyed U.S. providers and clinic staff (n = 907) in April 2020-January 2021, collecting data on contraceptive service delivery challenges and adaptations, including telemedicine. We assessed clinical practice changes with multivariate regression analyses using generalized linear models with a Poisson distribution and cluster robust standard errors, adjusting for clinic patient volume, practice setting, region, Title X funding, and time of survey. RESULTS: While 80% of providers reported their clinic remained open, 20% were closed on-site. Providers said the pandemic made it more difficult to offer the full range of contraceptive methods (65%), contraceptive counseling (61%) or to meet the needs of patients in marginalized communities (50%). While only 11% of providers offered telemedicine pre-pandemic, most offered telemedicine visits (79%) during the pandemic. Some used mail-order pharmacies (35%), curbside contraceptive services (22%), and DMPA-SQ for self-administration (10%). Clinics that closed on-site were more likely to use mail-order pharmacies (aRR 1.83, 95% CI [1.37-2.44]) and prescribe self-administered DMPA-SQ (aRR 3.85, 95% CI [2.40-6.18]). Clinics closed on-site were just as likely to use telemedicine as those that remained open. Among clinics using telemedicine, those closed on-site continued facing challenges in contraceptive service provision. CONCLUSIONS: Clinics closing on-site were just as likely to offer telemedicine, but faced greater challenges in offering contraceptive counseling and the full range of contraceptive methods, and meeting the needs of marginalized communities. Maintaining in-person care for contraceptive services, in spite of staffing shortages and financial difficulties, is an important objective during and beyond the pandemic.


Asunto(s)
COVID-19 , Telemedicina , Anticoncepción , Anticonceptivos , Servicios de Planificación Familiar , Humanos , Pandemias , Salud Reproductiva , Telemedicina/métodos , Estados Unidos
4.
J Obstet Gynaecol ; 42(5): 1358-1364, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34689685

RESUMEN

This retrospective study assessed the efficacy and long-term satisfaction of radiofrequency endometrial ablation outside the context of clinical trials in 408 women, and compared the outcome between office-setting (211, 52%) and day-case procedures under general anaesthetics (197, 48%). The Kaplan Meir time-to-event analysis showed that the cumulative number of women undergoing surgical re-intervention was 32 with a probability of 9.4% (95% CI: 6.3 - 12.5%) at 2-years, and 45 with a probability of 14.5% (95% CI: 10.3 - 18.2%) at 5-years. There was no statistically significant difference in the re-intervention rate between office and day-case groups (HR = 0.7, 95% CI: 0.68 - 3.1, p = .3). The satisfaction rate, measured by Visual Analogue Scale, was not statistically different (p = .5) between office (109; 80.7%) and day-case (96; 82.8%) groups. This study showed lower surgical re-intervention rate than previously reported in observational studies, and high rates of long-term women satisfaction. The outcomes were similar in office and day-case settings.Impact statementWhat is already known on this subject? Previous studies have shown the safety and effectiveness of radiofrequency endometrial ablation for treating heavy periods. However, studies investigating it, outside clinical trials, either included a small sample size, a short-term follow-up, poor reporting so that it is impossible to judge whether some women underwent re-intervention in another centre, failed to discriminate in analysis between second-generation techniques, or assessed only short-term satisfaction.What do the results of this study add? This is the largest series reported from a single centre and the first study reporting long-term satisfaction in women, outside clinical trials. Surgical re-intervention was used as the primary outcome measure which is an objective measure rather than the change in the monthly flow which is rather subjective. More importantly, the study records the similarity, in the outcome and women's satisfaction rate, between office and day-case procedures under general anaesthetics.What are the implications of these findings for clinical practice and/or further research? Endometrial ablation service is widely implemented in office-setting in the UK. We hope the result of this study encourages implementation on a larger scale in office across centres in the world with its multiple advantages both to women and service alike.


Asunto(s)
Anestésicos Generales , Técnicas de Ablación Endometrial , Menorragia , Anestésicos Generales/uso terapéutico , Técnicas de Ablación Endometrial/métodos , Endometrio/cirugía , Femenino , Humanos , Menorragia/tratamiento farmacológico , Satisfacción del Paciente , Estudios Retrospectivos , Resultado del Tratamiento
5.
Reprod Health ; 18(1): 49, 2021 Feb 24.
Artículo en Inglés | MEDLINE | ID: mdl-33627155

RESUMEN

INTRODUCTION: Both inpatient and outpatient providers may be at increased risk of stress, anxiety and depression from their roles as health providers during the COVID-19 epidemic. This study explores how the US COVID-19 epidemic has increased feelings of stress, anxiety and depression among outpatient reproductive health providers. METHODS: We conducted a survey with open-ended responses among outpatient reproductive health providers across the U.S. engaged in contraceptive care to collect data on their experiences with stress, anxiety and depression during the COVID-19 epidemic. The study population included physicians, nurses, social workers, and other health professions [n = 288]. Data were collected from April 21st-June 24th 2020. We used content analysis of free text responses among providers reporting increased stress, anxiety or depression. RESULTS: Two-thirds (184) of providers reported increased stress and one-third (96) reported increased anxiety or depression related to care provision during the COVID-19 epidemic. The major sources of stress, anxiety and depression were due to patient care, worry about becoming infected or infecting family members, work- and home-related concerns, experiencing provider burnout, and fear of the unknown. Concerns about quality of patient care, providers' changing responsibilities, lack of personal protective equipment, and difficulty coping with co-worker illness and absence all contributed to provider stress and anxiety. Worries about unemployment and childcare responsibilities were also highlighted. Providers attributed their stress, anxiety or depression to feeling overwhelmed, being unable to focus, lacking sleep, and worrying about the unknown. CONCLUSIONS: US outpatient providers are experiencing significant stress, anxiety, and depression during the US COVID-19 epidemic. Policy and programmatic responses are urgently needed to address the widespread adverse mental health consequences of this epidemic on outpatient providers, including reproductive health providers, across the US. Both inpatient and outpatient providers may be at increased risk of stress, anxiety and depression from their roles as health providers during the COVID-19 epidemic. This study explores how the US COVID-19 epidemic has increased feelings of stress, anxiety and depression among outpatient reproductive health providers across the US. We conducted a survey from April 21st to June 24th, 2020 among outpatient reproductive health providers, including physicians, nurses, social workers and other health professions. We asked open-ended questions to understand why providers reported increased stress, anxiety and/or depression. Two-thirds (184) of providers reported increased stress and one-third (96) reported increased anxiety or depression from care provision during the COVID-19 epidemic. Major sources of stress, anxiety and depression were due to patient care, worry about becoming infected or infecting family members, work- and home-related concerns, experiencing provider burnout, and fear of the unknown. Concerns about quality of patient care, providers' changing responsibilities, lack of personal protective equipment, and difficulty coping with co-worker illness and absence all contributed to provider stress and anxiety. Worries about unemployment and childcare responsibilities were also highlighted. Providers attributed their stress, anxiety or depression to feeling overwhelmed, being unable to focus, lacking sleep, and worrying about the unknown. This study highlights that US outpatient reproductive health providers are experiencing significant stress, anxiety, and depression during the US COVID-19 epidemic. Policy and programmatic responses are urgently needed to address the widespread adverse mental health consequences of this epidemic on outpatient providers, including reproductive health providers, across the US.


Asunto(s)
COVID-19/psicología , Personal de Salud/psicología , Salud Mental/estadística & datos numéricos , Salud Reproductiva , SARS-CoV-2 , Adulto , Atención Ambulatoria/psicología , Ansiedad/epidemiología , Depresión/epidemiología , Etnicidad/estadística & datos numéricos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estrés Psicológico/epidemiología , Encuestas y Cuestionarios , Estados Unidos/epidemiología
6.
Prev Med ; 141: 106290, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-33096126

RESUMEN

Building capacity for contraceptive services in primary care settings, including for intrauterine devices (IUDs) and implants, can help to broaden contraceptive access across the US. Following a randomized trial in family planning clinics, we brought a provider training intervention to other clinical settings including primary care in all regions. This implementation science study evaluates a national scale-up of a contraceptive training intervention to varied practice settings from 2013 to 2019 among 3216 clinic staff serving an estimated 1.6 million annual contraceptive patients. We measured providers' knowledge and clinical practice changes regarding IUDs and implants using survey data. We estimated the overall intervention effect, and its relative effectiveness in primary care settings, with generalized estimating equations for clustered data. Patient-centered counseling improved, along with comfort with method provision and removal. Provider knowledge increased (p < 0.001), as did evidence-based counseling for IUDs (aOR 3.3 95% CI 2.8-3.9) and implants (aOR 3.5, 95% CI 3.0-4.1), and clinician competency in copper and levonorgestrel IUDs (aORs 1.8-2.6 95% CIs 1.5-3.2) and implants (aOR 2.4 95% CI 2.0-2.9). While proficiency was lower initially in primary care, gains were significant and at times greater than in Planned Parenthood health clinics. This intervention was effectively scaled, including in primary care settings with limited prior experience with these methods. Recent changes to Title X family planning funding rules exclude several large family planning providers, shifting greater responsibility to primary care and other settings. Scaling effective contraceptive interventions is one way to ensure capacity to offer patients full contraceptive services.


Asunto(s)
Anticonceptivos , Dispositivos Intrauterinos , Servicios de Planificación Familiar , Femenino , Humanos , Ciencia de la Implementación , Atención Primaria de Salud
7.
Indian J Ophthalmol ; 71(4): 1450-1453, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-37026280

RESUMEN

Purpose: An undergraduate research conducted during the pre-covid times, to highlight the importance of screen time and its association with dry eye in medical students. The aim was to study the prevalence of dry eye among medical students using the ocular surface index (OSDI) questionnaire. Methods: This was a cross-sectional study. This study was conducted among medical students using an OSDI questionnaire in the pre-covid times. Based on the pilot study, the minimum sample size calculated was 245. A total of 310 medical students participated in the study. These medical students answered the OSDI questionnaire. The OSDI score was used to categorize students with dry eye as mild (13-22 points), moderate (23-32 points), and severe (33-100 points). In addition, the associations between the OSDI score and possible risk factors such as gender, contact lens/spectacle wear, laptop/mobile usage, and duration of exposure to air conditioners were also studied. Results: The analysis of the study revealed that out of 310 students, dry eye was seen in 143 (46.1%) and severe dry eyes were seen in 50 (16.1%). A high OSDI score (>13 points) was associated with the usage of a laptop/mobile for more than 6 h in 40 (52.6%) (P < 0.001). Conclusion: The prevalence of dry eye among medical students was 46.1% in the present study. Longer duration of usage of visual display units (laptop/mobile) was the only factor that showed a statistically significant association with dry eye in our study.


Asunto(s)
COVID-19 , Síndromes de Ojo Seco , Estudiantes de Medicina , Humanos , Prevalencia , Estudios Transversales , Proyectos Piloto , COVID-19/epidemiología , Encuestas y Cuestionarios , Síndromes de Ojo Seco/diagnóstico , Síndromes de Ojo Seco/epidemiología
8.
Perspect Sex Reprod Health ; 55(2): 94-103, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-37216964

RESUMEN

INTRODUCTION: Agency in contraceptive decision-making is an essential aspect of reproductive autonomy. We conducted qualitative research to investigate what agency means to patients seeking contraceptive care to inform the development of a validated measure of this construct. METHODOLOGY: We held four focus group discussions and seven interviews with sexually-active individuals assigned female at birth, ages 16-29 years, recruited from reproductive health clinics in Northern California. We explored experiences in contraceptive decision-making during the clinic visit. We coded data in ATLAS.ti and by hand, compared codes across three coders, and used thematic analysis to identify salient themes. RESULTS: The sample mean age was 21 years, with 17% of participants identifying as Asian, 23% as Black, 27% as Latinx, 17% as Multiracial/other, and 27% as white. Overall, participants reported active and engaged decision-making in their recent contraceptive visit but noted experiences that had undermined their agency in the past. They described how non-judgmental care allowed them to communicate openly, affirming their ability to make their own decisions. However, several mentioned how unexpected contraceptive side effects after the visit had reduced their sense of agency over their decision in retrospect. Several participants, including those who identified as Black, Latinx, and/or Asian, described prior experiences where pressure to use a contraceptive method had undermined their agency and where they had switched providers to regain agency over their contraceptive decisions. DISCUSSION: Most participants were aware of their agency during contraceptive visits and how it varied in different experiences with providers and the healthcare system. Patient perspectives can help to inform measurement development and ultimately the delivery of care that supports contraceptive agency.


Asunto(s)
Anticonceptivos , Médicos , Recién Nacido , Humanos , Femenino , Adulto Joven , Adulto , Anticoncepción/métodos , Dispositivos Anticonceptivos , California
9.
Womens Health Issues ; 32(5): 477-483, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35691762

RESUMEN

BACKGROUND: Telehealth use rapidly increased during the COVID-19 pandemic, including for contraceptive care (e.g., counseling and method provision). This study explored providers' experiences with contraceptive care via telehealth. METHODS: We conducted a survey with open-ended responses among contraceptive providers across the United States. The study population included physicians, nurse practitioners, health educators, and other health professionals (n = 546). Data were collected from April 10, 2020, to January 29, 2021. We conducted qualitative content analysis of the open-ended responses. RESULTS: Providers highlighted the benefits of telehealth, including continuing access to contraceptive services and accommodating patients who faced challenges attending in-person contraceptive visits. Providers at school-based health centers reported telehealth allowed them to reach young people while schools were closed. However, many providers noted a lack of patient awareness about the availability of telehealth services and disparities in access to technology. Providers felt there was less personal connection in virtual contraceptive counseling, noted challenges with confidentiality, and expressed concern about the inability to provide the full range of contraceptive methods through telehealth alone. CONCLUSIONS: The pandemic significantly impacted contraceptive health care delivery. Telehealth has sustained access to contraception in important ways, but has been accompanied by various challenges, including technological access and confidentiality. As hybrid models of care evolve, it is important to assess how telehealth can play a role in providing contraceptive care while addressing its barriers.


Asunto(s)
COVID-19 , Telemedicina , Adolescente , Anticoncepción , Anticonceptivos/uso terapéutico , Humanos , Pandemias , Estados Unidos/epidemiología
10.
Med J Malaysia ; 66(1): 48-52, 2011 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-23765143

RESUMEN

In view of the alarming increase in the incidence of diabetes mellitus in Malaysia, we conducted a study to assess the awareness of complications of diabetes among the diabetics attending the peripheral clinics in Melaka. The study period was from January 2007 to December 2007. 351 patients were included in the study. 79.8% were aware of the complications of diabetes mellitus and 87.2% were aware that diabetes can affect the eyes. However, only 50% of the patients underwent an ophthalmological evaluation. Although awareness was good, the motivation to undergo the assessment was poor.


Asunto(s)
Retinopatía Diabética , Humanos , Incidencia , Malasia
11.
Clin Case Rep ; 9(4): 2019-2022, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33936633

RESUMEN

Necrotizing sialometaplasia can make anyone very anxious about the lesion especially if they have habit of tobacco consumption. It requires a prompt diagnosis, counseling with assurance to patient and treatment.

12.
J Pediatr Adolesc Gynecol ; 34(1): 26-32, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-32730800

RESUMEN

STUDY OBJECTIVES: Many pediatric providers serving adolescents are not trained to offer comprehensive contraceptive services, including intrauterine devices (IUDs) and implants, despite high safety and satisfaction among adolescents. This study assessed an initiative to train providers at school-based health centers (SBHCs) to offer students the full range of contraceptive methods. DESIGN: Surveys were administered at baseline pre-training and at follow-up 3 months post-training. Data were analyzed using generalized estimating equations for clustered data to examine clinical practice changes. SETTING: Eleven contraceptive trainings at SBHCs across the United States from 2016-2019. PARTICIPANTS: A total of 260 providers from 158 SBHCs serving 135,800 students. INTERVENTIONS: On-site training to strengthen patient-centered counseling and to equip practitioners to integrate IUDs and implants into contraceptive services. MAIN OUTCOME MEASURES: The outcomes included counseling experience on IUDs and implants, knowledge of patient eligibility, and clinician method skills. RESULTS: At follow-up, providers were significantly more likely to report having enough experience to counsel on IUDs (adjusted odds ratio [aOR], 4.08; 95% confidence interval [CI], 2.62-6.36]) and implants (aOR, 3.06; 95% CI, 2.05-4.57). Provider knowledge about patient eligibility for IUDs, including for adolescents, increased (P < .001). Providers were more likely to offer same-visit IUD (aOR, 2.10; 95% CI, 1.41-3.12) and implant services (aOR, 1.66; 95% CI, 1.44-1.91). Clinicians' skills with contraceptive devices improved, including for a newly available low-cost IUD (aOR, 2.21; 95% CI, 1.45-3.36). CONCLUSIONS: Offering evidence-based training is a promising approach to increase counseling and access to comprehensive contraceptive services at SBHCs.


Asunto(s)
Creación de Capacidad/organización & administración , Anticoncepción/métodos , Consejo/educación , Servicios de Salud Escolar/organización & administración , Adolescente , Competencia Clínica , Consejo/métodos , Femenino , Humanos , Dispositivos Intrauterinos , Encuestas y Cuestionarios , Estados Unidos
13.
Indian J Ophthalmol ; 66(4): 547-550, 2018 04.
Artículo en Inglés | MEDLINE | ID: mdl-29582817

RESUMEN

Purpose: The purpose was to study the retinopathy status in diabetic patients with a risk of diabetic foot (DF) syndrome visiting a tertiary care hospital in South India. Methods: In this cross sectional study all patients with diabetes mellitus (DM) with a risk of DF syndrome, visiting a tertiary care hospital during the study period, underwent an ophthalmological evaluation for documentation of their retinopathy status. Results: One hundred and eighty-two patients diagnosed to have a risk profile for DF syndrome were included in the study. Their mean age was 59.28 years and 75.27% were males. The mean duration of Type 1 and Type 2 variants of DM was 14.9 years and 10.9 years, respectively. Of the 182 patients, 67.58% had retinopathy changes. Proliferative diabetic retinopathy (DR) constituted 17.88% of the total patients with retinopathy. An increased presence of retinopathy in patients with an increased risk grade of DF was found significant by the Chi-square test (P < 0.001). Conclusion: Our study found an increased presence of DR in a South Indian cohort with DF syndrome. The severity of retinopathy was greater in patients with higher grades of risk for DF. The establishment of an association between DR and DF syndrome will help in developing an integrated management strategy for these two debilitating consequences of diabetes.


Asunto(s)
Pie Diabético/epidemiología , Retinopatía Diabética/epidemiología , Estudios Transversales , Países en Desarrollo , Diabetes Mellitus Tipo 1/epidemiología , Diabetes Mellitus Tipo 2/epidemiología , Pie Diabético/diagnóstico , Retinopatía Diabética/diagnóstico , Femenino , Humanos , Incidencia , India/epidemiología , Masculino , Persona de Mediana Edad , Prevalencia , Factores de Riesgo , Centros de Atención Terciaria
14.
J Clin Diagn Res ; 10(7): NC01-4, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27630873

RESUMEN

INTRODUCTION: Hypotension following antihypertensive treatment is associated with retinal nerve fibre loss. There are studies that have reported the changes in RNFL in hypertensives. AIM: To compare the Retinal Nerve Fibre Layer (RNFL) thickness using Optical Coherence Tomography (OCT) in hypertensive and normotensive individuals. MATERIALS AND METHODS: The cross-sectional study was conducted from October 2012 to September 2014 to compare the RNFL thickness using SD OCT in hypertensive {no other ocular or systemic co-morbidity, vision better or equal to 6/9 (n=30)} and normotensive (n=30) individuals. RESULTS: Statistically significant RNFL loss was detected in hypertensives (98.31 ± 7.01) when compared to the normotensives (102.51 ± 8.72) p=0.001. CONCLUSION: Significant loss of RNFL in hypertensives point towards the altered autoregulation and warrants larger studies to assess the clinical relevance.

15.
Mol Ther Nucleic Acids ; 5(7): e338, 2016 Jul 19.
Artículo en Inglés | MEDLINE | ID: mdl-27434683

RESUMEN

Gene therapy using recombinant adeno-associated viral (AAV) vectors is emerging as a promising approach to treat central nervous system disorders such as Spinal muscular atrophy, Batten, Parkinson and Alzheimer disease amongst others. A critical remaining challenge for central nervous system-targeted gene therapy, silencing or gene editing is to limit potential vector dose-related toxicity in off-target cells and organs. Here, we characterize a lab-derived AAV chimeric (AAV2g9), which displays favorable central nervous system attributes derived from both parental counterparts, AAV2 and AAV9. This synthetic AAV strain displays preferential, robust, and widespread neuronal transduction within the brain and decreased glial tropism. Importantly, we observed minimal systemic leakage, decreased sequestration and gene transfer in off-target organs with AAV2g9, when administered into the cerebrospinal fluid. A single intracranial injection of AAV2g9 vectors encoding guide RNAs targeting the schizophrenia risk gene MIR137 (encoding MIR137) in CRISPR/Cas9 knockin mice resulted in brain-specific gene deletion with no detectable events in the liver. This engineered AAV vector is a promising platform for treating neurological disorders through gene therapy, silencing or editing modalities.

16.
J Virol Methods ; 236: 105-110, 2016 10.
Artículo en Inglés | MEDLINE | ID: mdl-27424005

RESUMEN

Adeno-associated viruses (AAVs) are promising viral vectors for therapeutic gene delivery, and the approval of an AAV1 vector for the treatment of lipoprotein lipase deficiency has heralded a new and exciting era for this system. However, preclinical and clinical studies show that neutralization from pre-existing antibodies is detrimental for medical application and this hurdle must be overcome before full clinical realization can be achieved. Thus the binding sites for capsid antibodies must be identified and eliminated through capsid engineering. Towards this goal and to recapitulate patient polyclonal responses, a panel of six new mouse monoclonal antibodies (MAbs) has been generated against AAV8 and AAV9 capsids, two vectors being developed for therapeutic application. Native (capsid) dot blot assays confirmed the specificity of these antibodies for their parental serotypes, with the exception of one MAb, HL2372, selected to cross-react against both capsids. Furthermore, in vitro assays showed that these MAbs are capable of neutralizing virus infection. These MAbs will be utilized for structural mapping of antigenic footprints on their respective capsids to inform development of the next generation of rAAV vectors capable of evading antibody neutralization while retaining parental tropism.


Asunto(s)
Anticuerpos Monoclonales/inmunología , Anticuerpos Monoclonales/aislamiento & purificación , Anticuerpos Antivirales/inmunología , Anticuerpos Antivirales/aislamiento & purificación , Dependovirus/inmunología , Serogrupo , Animales , Humanos , Ratones
17.
BMJ Case Rep ; 20152015 Apr 21.
Artículo en Inglés | MEDLINE | ID: mdl-25899513

RESUMEN

This article advocates the need for early incision and drainage of periorbital abscesses. We report a case of a 1.5-month-old neonate with orbital cellulitis and periorbital abscess, which had rapidly developed over a period of 3 days. Treatment history revealed methicillin-resistant Staphylococcus aureus sepsis treated with intravenous vancomycin, and incision and drainage of abscesses at multiple sites (left parotid region, upper and lower limbs). A small swelling noted on the left temporal region on discharge from the hospital was treated with oral cotrimoxazole. However, it spread rapidly to involve the periorbital tissue and the bones of the orbital walls to form a periorbital abscess and orbital cellulitis.


Asunto(s)
Absceso/terapia , Drenaje/métodos , Staphylococcus aureus Resistente a Meticilina/aislamiento & purificación , Celulitis Orbitaria/terapia , Sepsis/complicaciones , Infecciones Estafilocócicas/complicaciones , Absceso/microbiología , Enfermedad Aguda , Humanos , Lactante , Masculino , Órbita/microbiología , Órbita/patología , Celulitis Orbitaria/complicaciones , Celulitis Orbitaria/microbiología , Sepsis/microbiología , Infecciones Estafilocócicas/microbiología , Infecciones Estafilocócicas/terapia , Resultado del Tratamiento , Combinación Trimetoprim y Sulfametoxazol/administración & dosificación , Combinación Trimetoprim y Sulfametoxazol/uso terapéutico , Vancomicina/administración & dosificación , Vancomicina/uso terapéutico
18.
BMJ Case Rep ; 20132013 Jul 31.
Artículo en Inglés | MEDLINE | ID: mdl-23904427

RESUMEN

A 53-year-old man presented with a slow-growing mass in the right orbit and temporal area of 1 year duration following a road traffic accident. Examination revealed a nodular fungating mass involving the orbit, right temporal area with multiple discharging sinuses causing proptosis and restricted ocular motility. The patient denied light perception in the right eye. There was exposure keratopathy and optic atrophy. Imaging showed mass lesion of the orbit extending intracranially. Tissue biopsy and culture revealed a chronic granulomatous reaction due to deep infection with coagulase-positive staphylococci. The patient showed remarkable improvement to systemic antibiotics and anticonvulsants. Mortality is high in such cases due to intracranial extension if there is a delay in treatment. This case report summarises a rare aetiology and successful treatment of a case of chronic granulomatous reaction due to deep bacterial infection following trauma and is deemed rare as cases of primary orbital infection in immunocompetent have not been reported so far.


Asunto(s)
Granuloma/microbiología , Enfermedades Orbitales/microbiología , Infecciones Estafilocócicas/complicaciones , Enfermedad Crónica , Traumatismos Craneocerebrales/complicaciones , Humanos , Inmunocompetencia , Masculino , Persona de Mediana Edad , Infecciones Estafilocócicas/etiología
20.
Indian J Ophthalmol ; 59(1): 41-5, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21157071

RESUMEN

AIM: Corneal blindness accounts for 3.42% of blindness in Malaysia; the rate of eye donation is low. The aim of the study was to assess the awareness about eye donation and willingness to donate eyes among attendants of patients at various clinics in Melaka, Malaysia. MATERIALS AND METHODS: This observational study was conducted on attendants who accompanied patients (n = 400) visiting various outpatient departments of the General Hospital and two peripheral clinics in Melaka between August and October 2007. The participants answered a questionnaire (Malay and English versions) which included demographic profile, awareness of eye donation, knowledge regarding facts of eye donation, and willingness to donate eyes. Univariate and multivariate logistic regression was performed at 5% level of significance. RESULTS: Awareness of eye donation was observed in 276 (69%) participants. Multivariate analysis showed that awareness was more among females when compared to males (P = 0.009). Of the 276 participants who were aware of eye donation, only 34.42% were willing to donate eyes. Willingness was more among the Indian race (P = 0.02) and males (P = 0.02). Educational status did not influence the willingness to donate eyes. CONCLUSIONS: Although majority of participants were aware of eye donation, willingness to donate eyes was poor.


Asunto(s)
Pueblo Asiatico/psicología , Ojo , Conocimientos, Actitudes y Práctica en Salud , Obtención de Tejidos y Órganos , Adulto , Pueblo Asiatico/estadística & datos numéricos , Femenino , Humanos , India , Malasia/etnología , Masculino , Persona de Mediana Edad , Análisis Multivariante , Factores Sexuales , Encuestas y Cuestionarios , Obtención de Tejidos y Órganos/estadística & datos numéricos , Adulto Joven
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