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1.
BMJ Mil Health ; 168(3): 224-228, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33911011

RESUMEN

Accelerated Resolution Therapy (ART) is an emerging therapeutic intervention that has demonstrated effectiveness in treating post-traumatic stress, anxiety and depression. The ART protocol aligns with first-line trauma-focused psychotherapies and clinical guides in the USA and UK. This review addresses previous ART research that includes members of US Special Operations Forces. Observations from that research has led to a thematic conceptualisation of trauma through ART interventions. These include three clusters of traumatic memories and several themes relevant to individual distress but not necessarily symptoms that meet diagnostic criteria for PTSD. ART represents a movement in treatment away from the symptoms, to the individuals' story. Not only the story of an event, but how that experience becomes incorporated into one's sense of identity. The themes identified (and treated with ART) appear to have broader application to the entirety of one's military experience, not just PTSD. These themes may be helpful in directing treatment and may help to focus on significant aspects of service not traditionally associated with PTSD. Theoretically, some of these areas may have protective implications in suicide.


Asunto(s)
Personal Militar , Trastornos por Estrés Postraumático , Veteranos , Ansiedad , Humanos , Trastornos por Estrés Postraumático/terapia
2.
J Am Water Works Assoc ; 109(8): 13-15, 2017 08.
Artículo en Inglés | MEDLINE | ID: mdl-29416142

RESUMEN

To inform selection of a control range around the Public Health Service's recommended 0.7 mg/L drinking water fluoride concentration to prevent tooth decay, CDC's Water Fluoridation Reporting System data for 2006-2010 and 2015 were analyzed. Monthly average concentration data from 4,251 fluoride-adjusted community water systems for 191,266 of 255,060 system-months (2006-2010) were compared to control ranges 0.6 mg/L to 0.2 mg/L wide. Percentages of system-months within control ranges ≥0.4 mg/L wide (e.g., ±0.2 mg/L) were >83% versus 68% for 0.2 mg/L wide (±0.1 mg/L). In 2015, 70% of adjusted systems maintained averages within ±0.1 mg/L of their system's annual average for 9 of 12 months, 67% used the 0.7 mg/L target and 45% used it with a ±0.1 mg/L control range. Adoption of the 0.7 mg/L target was underway but not completed in 2015. Control ranges narrower than ±0.2 mg/L may be feasible for monthly average fluoride concentration.

3.
J R Army Med Corps ; 162(2): 90-7, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26141210

RESUMEN

Post-traumatic stress disorder (PTSD) is a disabling trauma and stress-related disorder that may occur after a person experiences a traumatic event, and evokes a combination of intrusion and avoidance symptoms, negative alterations in cognitions and mood, and alterations in arousal and reactivity. Accelerated resolution therapy (ART) is an emerging psychotherapy that provides fast and lasting resolution for mental health problems such as PTSD. ART has been shown to achieve a positive result in one to five sessions, typically over a 2-week period, and requires no homework, skills practice or repeated exposure to targeted events. Initial research, including one randomised control trial, has demonstrated that ART interventions can significantly reduce symptoms of psychological trauma in both civilians and US service members and veterans. These results suggest that ART be considered as either a primary treatment option or for refractory PTSD in those with a suboptimal response to endorsed first-line therapies. Conservative estimates indicate substantial potential cost savings in PTSD treatment. Despite the need for more definitive clinical trials, there is increasing interest in ART in the USA, including in the US Army. The growing positive empirical evidence is compelling, and there appears to be sufficient evidence to warrant UK researchers undertaking ART research. The armed forces offer the potential for comparative international trials. However, equally important are veterans, emergency services personnel and those subjected to violence. ART appears to also have application in other conditions, including depression, anxiety disorders, and alcohol or drug misuse. ART can potentially help personnel traumatised by the unique challenges of war and conflict zones by providing brief psychotherapy in a readily accessible and culturally competent manner. ART facilitates the provision of interventions and resolutions in theatre, thus enhancing forces' fighting capability.


Asunto(s)
Personal Militar/psicología , Psiquiatría Militar/métodos , Psicoterapia Breve/métodos , Trastornos por Estrés Postraumático/terapia , Veteranos/psicología , Trastornos de Ansiedad/psicología , Trastornos de Ansiedad/terapia , Trastorno Depresivo/psicología , Trastorno Depresivo/terapia , Desensibilización y Reprocesamiento del Movimiento Ocular , Humanos , Trastornos por Estrés Postraumático/psicología , Trastornos Relacionados con Sustancias/psicología , Trastornos Relacionados con Sustancias/terapia
4.
Neth Heart J ; 23(1): 44-51, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25342280

RESUMEN

BACKGROUND: Identification of racial differences in the burden and correlates of carotid intima media thickness (CIMT) and coronary artery calcium (CAC) may provide the basis for the development of race-specific cardiovascular disease (CVD) risk prediction algorithms. METHODS: In the Heart Strategies Concentrating on Risk Evaluation (Heart SCORE) study, CIMT was measured by carotid ultrasonography in 792 individuals (35 % Black). CIMT >1 mm was considered significant. CAC was quantified by electron beam computed tomography in 776 individuals (46 % Black). CAC was considered significant if the Agatston score was >100. Cross-sectional associations between race, CIMT and CAC were assessed using logistic regression models. RESULTS: Blacks had greater CIMT (mean difference 0.033 mm, 95 % CI 0.005-0.06 mm; p = 0.02) and 1.5-fold (95 % CI 1.0-2.3) higher odds of having significant CIMT than Whites. Blacks had less CAC than Whites (mean Agatston score difference 66, [11-122]; p = 0.02) and 50 % lower odds of a significant CAC score compared with Whites (0.5 [0.3-0.7]). These associations were virtually unchanged after adjustment for CVD risk factors. Of the novel CVD risk markers assessed, small-dense low-density lipoprotein was independently associated with increased odds of significant CIMT, with the association being similar among Blacks and Whites (odds ratio [95 % CI]: 1.7 [1.2-2.5] and 1.4 [1.0-1.8] per 1-SD higher level, respectively). Interleukin-6 was significantly associated with CAC among Blacks (1.4 [1.0-2.0]). CONCLUSION: Black race is independently associated with greater CIMT but less CAC than White race. CVD risk stratification strategies that incorporate these measures of subclinical atherosclerosis should consider race-specific algorithms.

5.
Oecologia ; 165(3): 605-16, 2011 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-21153743

RESUMEN

The success of biological control programs is rarely assessed beyond population level impacts on the target organism. The question of whether a biological control agent can either partially or completely restore ecosystem services independent of population level control is therefore still open to discussion. Using observational and experimental approaches, we investigated the ability of the saltcedar leaf beetle [Diorhabda carinulata (Brullé) (Coleoptera: Chrysomelidae)] to reduce the water use of saltcedar trees (Tamarix ramosissima Ledeb.) in two sites (Humboldt and Walker Rivers) in Nevada, USA. At these sites D. carinulata defoliated the majority of trees within 25 and 9 km, respectively, of the release location within 3 years. At the Humboldt site, D. carinulata reduced the canopy cover of trees adjacent to the release location by >90%. At a location 4 km away during the first year of defoliation, D. carinulata reduced peak (August) stem water use by 50-70% and stand transpiration (July to late September) by 75% (P = 0.052). There was, however, no reduction in stem water use and stand transpiration during the second year of defoliation due to reduced beetle abundances at that location. At the Walker site, we measured stand evapotranspiration (ET) in the center of a large saltcedar stand and found that ET was highest immediately prior to D. carinulata arrival, dropped dramatically with defoliation, and remained low through the subsequent 2 years of the study. In contrast, near the perimeter of the stand, D. carinulata did not reduce sap flow, partly because of low rates of defoliation but also because of increased water use per unit leaf area in response to defoliation. Taken together, our results provide evidence that in the early stages of population expansion D. carinulata can lead to substantial declines in saltcedar water use. The extent of these declines varies spatially and temporally and is dependent on saltcedar compensatory responses along with D. carinulata population dynamics and patterns of dispersal.


Asunto(s)
Escarabajos/fisiología , Especies Introducidas , Control Biológico de Vectores , Tamaricaceae/metabolismo , Agua/metabolismo , Animales , Ecosistema , Conducta Alimentaria , Nevada , Tallos de la Planta/metabolismo , Transpiración de Plantas , Densidad de Población , Dinámica Poblacional , Tamaricaceae/crecimiento & desarrollo
6.
J Neurointerv Surg ; 1(1): 66-70, 2009 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-21994110

RESUMEN

BACKGROUND AND PURPOSE: There has been no prospective evaluation of vertebroplasty using a validated instrument. We describe the pain and functional status of 72 patients before and after vertebroplasty, as prospectively evaluated by the Vertebral Compression Fracture Pain and Functional Disability Questionnaire. METHODS: Of 161 consecutive patients, 72 consented to participate in the study and self-completed the questionnaire prior to undergoing vertebroplasty. Differences in pain and distress before and after vertebroplasty, and between the first and second follow-up intervals, were evaluated. Mean scores for each of 24 activities of daily living (ADLs) were plotted at the baseline and first and second follow-up intervals. RESULTS: The mean (SD) patient age was 74 (10) years; 80% were female. On the 0 (no pain) to 10 (pain as bad as it could be) visual analog pain scale, patients reported significantly more pain, on average, before undergoing percutaneous vertebroplasty (PV) than at the first follow-up interval (mean 5.8 vs 3.5, p<0.001). The reduction in reported pain following vertebroplasty persisted at the second follow-up on both the visual analog and adjectival pain scales. Among the 24 ADLs, between 25% and 69% of patients reported a mean improvement of at least 1 level on the 5-point ADL scale, and between 14% and 55% reported a mean improvement of at least two levels. The majority of the improvement in reported functional status following vertebroplasty was sustained at the second follow-up interval. CONCLUSION: PV resulted in substantial, lasting reduction in pain and improvement in ability to perform ADLs.


Asunto(s)
Fracturas por Compresión/cirugía , Dolor Postoperatorio/diagnóstico , Recuperación de la Función , Fracturas de la Columna Vertebral/cirugía , Vertebroplastia/métodos , Actividades Cotidianas , Adulto , Anciano , Anciano de 80 o más Años , Evaluación de la Discapacidad , Femenino , Estudios de Seguimiento , Fracturas por Compresión/etiología , Fracturas por Compresión/rehabilitación , Humanos , Masculino , Osteoporosis/complicaciones , Dimensión del Dolor , Dolor Postoperatorio/rehabilitación , Estudios Prospectivos , Fracturas de la Columna Vertebral/etiología , Fracturas de la Columna Vertebral/rehabilitación , Encuestas y Cuestionarios , Vertebroplastia/rehabilitación
7.
Am J Epidemiol ; 154(3): 221-9, 2001 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-11479186

RESUMEN

The authors investigated exposure to high-level occupations in relation to the well-known survival advantage of women compared with men of the same age. Women in the federal workforce in positions of General Schedule 14 and above in 1979--1993 (n = 4,727) were each matched with three men (n = 14,181) by age, General Schedule level, and supervisory role. Fifteen-year mortality rates were compared between men and women and against expected 15-year mortality from the US general population. Despite similar job demands, women experienced markedly lower 15-year mortality than did men. However, men in these positions had nearly 50% lower mortality compared with age-matched men in the general population; the comparable reduction for women was 38%. The simultaneous substantial, but unequal by gender, improvement in mortality resulted in a reduced male/female mortality ratio, from 1.67 in the general population to 1.40. The reduced male/female mortality ratio was especially prominent for cancer and was not evident for heart disease mortality. Survival was nominally higher in non-White than in White participants. In summary, high-level employment is associated with substantially reduced mortality in both men and women. The relative improvement in survival is greater in men despite a comparable reduction in risk of heart disease mortality by gender.


Asunto(s)
Personal Administrativo/estadística & datos numéricos , Causas de Muerte , Mortalidad/tendencias , Ocupaciones/estadística & datos numéricos , Personal Administrativo/tendencias , Adulto , Distribución por Edad , Anciano , Estudios de Cohortes , Femenino , Agencias Gubernamentales/organización & administración , Agencias Gubernamentales/estadística & datos numéricos , Agencias Gubernamentales/tendencias , Cardiopatías/mortalidad , Humanos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Neoplasias/mortalidad , Distribución por Sexo , Factores Sexuales , Estados Unidos/epidemiología , Población Blanca
8.
J AAPOS ; 5(4): 250-4, 2001 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-11507585

RESUMEN

OBJECTIVE: To develop a questionnaire to assess the acceptability of amblyopia treatment and its effect on the child and family. METHODS: A 20-item parental survey was developed and pilot tested on 64 subjects, aged 3 to 6 years, participating in the Amblyopia Treatment Study, a randomized trial comparing patching and atropine as treatments for moderate amblyopia. The survey was administered after 4 weeks of treatment. A descriptive item analysis and an internal consistency reliability analysis were performed. RESULTS: Nineteen of the 20 items demonstrated adequate variability as evidenced by the frequency distributions for item responses. Only 4 (<1%) of 1280 possible item responses were missing, one each by 4 different respondents. Factor analysis identified 3 treatment-related factors--"adverse effects," "compliance," and "social stigma"--among 11 of the 20 items. The internal-consistency reliability alpha for the 5-item adverse effects subscale was 0.82, the 4-item compliance subscale alpha was 0.81, and the 2-item social stigma subscale alpha was 0.84. CONCLUSIONS: The Amblyopia Treatment Index appears to be a useful instrument for assessing the impact of amblyopia treatment in 3- to 6-year-old children.


Asunto(s)
Ambliopía/terapia , Atropina/uso terapéutico , Indicadores de Salud , Midriáticos/uso terapéutico , Privación Sensorial , Ambliopía/fisiopatología , Niño , Preescolar , Femenino , Humanos , Masculino , Cooperación del Paciente , Proyectos Piloto , Reproducibilidad de los Resultados , Encuestas y Cuestionarios , Resultado del Tratamiento
9.
J Neuroophthalmol ; 21(2): 124-31, 2001 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-11450903

RESUMEN

OBJECTIVES: To assess the value of the Smith-Kettlewell Institute Low Luminance (SKILL) Card test, designed to measure vision at reduced contrast and luminance, among patients with previous optic neuritis. MATERIALS AND METHODS: The SKILL Card test was administered to 295 patients participating in the Optic Neuritis Treatment Trial (ONTT) follow-up study, concurrent with measurement of visual acuity, visual field, contrast sensitivity, and color vision. Health-related quality of life (HRQL) was also assessed in a subset of patients using the National Eye Institute Visual Function Questionnaire and an ONTT-developed questionnaire. RESULTS: The SKILL Card difference score (high-contrast acuity score minus low-contrast acuity score) was only weakly associated with the other measures of vision function (rs absolute range, 0.05-0.31) and with the HRQL measures (rs absolute range, 0.02-0.15). In contrast, the light and dark component scores of the SKILL Card test had higher associations with the other vision measures (rs absolute range, 0.27-0.54) and with the HRQL measures (rs absolute range, 0.10-0.40). CONCLUSIONS: The SKILL Card difference score is not a meaningful measure for patients with optic neuritis; however, the test appears to have clinical usefulness as a method to measure high-contrast and low-contrast acuity.


Asunto(s)
Neuritis Óptica/diagnóstico , Trastornos de la Visión/diagnóstico , Pruebas de Visión/métodos , Adolescente , Adulto , Sensibilidad de Contraste/fisiología , Femenino , Glucocorticoides/uso terapéutico , Indicadores de Salud , Humanos , Masculino , Persona de Mediana Edad , Esclerosis Múltiple/complicaciones , Esclerosis Múltiple/fisiopatología , Neuritis Óptica/tratamiento farmacológico , Neuritis Óptica/fisiopatología , Prednisona/uso terapéutico , Calidad de Vida , Encuestas y Cuestionarios , Trastornos de la Visión/tratamiento farmacológico , Trastornos de la Visión/fisiopatología , Pruebas de Visión/instrumentación , Agudeza Visual/fisiología , Campos Visuales/fisiología
10.
Ophthalmology ; 108(8): 1457-60, 2001 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-11470700

RESUMEN

PURPOSE: To evaluate whether nonrecovery from acute traumatic sixth nerve palsy could be predicted from demographic factors or palsy characteristics. DESIGN: Prospective, observational case series SETTING: Multicenter (academic and private practices). OUTCOME MEASURE: Nonrecovery, defined as the presence of diplopia in primary position or more than 10 prism diopters of distance esotropia in primary position at 6 months after onset. METHODS: Using data from a previously described cohort of 84 eligible patients with acute traumatic sixth nerve palsy, we performed multivariate analyses of demographic factors and palsy characteristics. RESULTS: Nonrecovery at 6 months after onset was associated with a complete palsy (adjusted risk ratio, 9.11; 95% confidence interval [CI], 2.77-14.84) and with a bilateral palsy or paresis (adjusted risk ratio, 2.53; 95% CI, 0.98-4.29). The choice of conservative management (observation, prism, or patch) versus acute injection of Botulinum toxin (within 3 months of injury) did not influence final recovery. CONCLUSIONS: In acute traumatic sixth nerve palsy or paresis, failure to recover by 6 months after onset was associated independently with inability to abduct past midline at presentation and bilaterality. Although the overall recovery rate is high in acute traumatic sixth nerve palsy or paresis, a complete or bilateral case has a poor prognosis and is more likely to need strabismus surgery.


Asunto(s)
Enfermedades del Nervio Abducens/diagnóstico , Traumatismo del Nervio Abducente/diagnóstico , Diplopía/diagnóstico , Esotropía/diagnóstico , Enfermedades del Nervio Abducens/tratamiento farmacológico , Enfermedades del Nervio Abducens/fisiopatología , Traumatismo del Nervio Abducente/tratamiento farmacológico , Traumatismo del Nervio Abducente/fisiopatología , Enfermedad Aguda , Adolescente , Adulto , Anciano , Antidiscinéticos/uso terapéutico , Toxinas Botulínicas/uso terapéutico , Niño , Preescolar , Estudios de Cohortes , Diplopía/tratamiento farmacológico , Diplopía/fisiopatología , Esotropía/tratamiento farmacológico , Esotropía/fisiopatología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Prospectivos , Recuperación de la Función , Factores de Riesgo
11.
J AAPOS ; 5(3): 153-7, 2001 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-11404741

RESUMEN

PURPOSE: To determine whether anisometropia increases the risk for the development of accommodative esotropia with hypermetropia. METHODS: Records of all new patients with a refractive error of +2.00 D or more (mean spherical equivalent of both eyes) over a 42-month period were reviewed. Three hundred forty-five patients were thus analyzed to determine the effect of anisometropia (>or=1 D) on the relative risk of developing accommodative esotropia and of developing unsatisfactory control with spectacles once esotropia was present. RESULTS: Anisometropia (>or=1 D) increased the relative risk of developing accommodative esotropia to 1.68 (P < .05). Anisometropia (>or=1 D) increased the relative risk for esotropia to 7.8 (P < .05) in patients with a mean spherical equivalent less than +3.00 D and increased it to 1.49 (P < .05) in patients with a mean spherical equivalent of +3.00 D or more (P = .016). In patients with esotropia and anisometropia (>or=1 D), the relative risk for a deviation that was unsatisfactorily controlled with spectacles was 1.72 (P < .05) compared with patients with esotropia but without anisometropia. Unsatisfactorily controlled esotropia was present in 33% of patients with anisometropia versus 0% of patients without anisometropia, with a mean hypermetropic spherical equivalent of less than +3.00 D (P = .003); however, anisometropia did not significantly increase the relative risk of unsatisfactory control of esotropia with spectacles in patients with a hypermetropic spherical equivalent of +3.00 D or more. Although amblyopia and anisometropia were closely associated, anisometropia increased the relative risk for esotropia to 2.14 (P < .05), even in the absence of amblyopia. CONCLUSIONS: Anisometropia (>or=1 D) is a significant risk factor for the development of accommodative esotropia, especially in patients with lower overall hypermetropia (>+3.00 D). Anisometropia also increases the risk that an accommodative esotropia will not be satisfactorily aligned with spectacles.


Asunto(s)
Acomodación Ocular , Anisometropía/complicaciones , Esotropía/etiología , Anisometropía/diagnóstico , Anisometropía/fisiopatología , Preescolar , Técnicas de Diagnóstico Oftalmológico , Esotropía/fisiopatología , Esotropía/terapia , Anteojos , Humanos , Factores de Riesgo
12.
Cancer Invest ; 19(4): 352-9, 2001.
Artículo en Inglés | MEDLINE | ID: mdl-11405175

RESUMEN

Serum cardiac troponin I (cTnI) levels have been reported to have high specificity and sensitivity to acute myocardial infarction and coronary ischemic syndromes in adult patients. Our goal was to evaluate the usefulness of serum cTnI in the early diagnosis of cardiac injury from anthracyclines, and to compare these values with echocardiographic findings of cardiac dysfunction. In this prospective study, children being treated on several Children's Cancer Group protocols underwent measurement of shortening fraction (SF), ejection fraction (EF), and serum cTnI levels prior to anthracycline therapy. Sequential serum cTnI levels were then measured along with regularly scheduled echocardiograms with progressively increasing doses of anthracyclines. Fifteen children with median age of 5.75 years (range, 15 months to 15.5 years) at diagnosis were evaluated. Anthracycline doses ranged from 11.72 mg/kg (in patients < 3 years of age) to 375 mg/m2. All but one patient had normal cTnI levels. His level measured at 1.7 ng/ml after 315 mg/m2, but was normal on follow-up testing. Initial SF ranged from 32 to 48%, and EF from 60 to 80%. On follow-up, SF and EF ranged from 30 to 41% and 55 to 70%, respectively. Both SF and EF were significantly lower (p < 0.001) as compared to the initial values. Despite this, all patients remained clinically asymptomatic from the cardiac standpoint. We did not observe elevations of serum cTnI levels in clinically asymptomatic children who received anthracycline therapy up to doses of 375 mg/m2. Does this mean that cardiac injury has not occurred? The possibility of assay sensitivity and the timing of serum sampling and echocardiograms may be important. In addition, larger sample size or longer follow-up may be helpful to determine if higher doses or symptomatic patients potentially have elevations in cTnI levels.


Asunto(s)
Antibióticos Antineoplásicos/efectos adversos , Cardiomiopatías/inducido químicamente , Isoformas de Proteínas/sangre , Troponina I/sangre , Adolescente , Antibióticos Antineoplásicos/administración & dosificación , Antibióticos Antineoplásicos/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Biomarcadores , Cardiomiopatías/sangre , Cardiomiopatías/diagnóstico por imagen , Niño , Preescolar , Relación Dosis-Respuesta a Droga , Ecocardiografía , Femenino , Humanos , Lactante , Masculino , Neoplasias/sangre , Neoplasias/tratamiento farmacológico , Proyectos Piloto , Estudios Prospectivos , Sensibilidad y Especificidad , Volumen Sistólico , Disfunción Ventricular Izquierda/sangre , Disfunción Ventricular Izquierda/inducido químicamente , Disfunción Ventricular Izquierda/diagnóstico , Disfunción Ventricular Izquierda/fisiopatología
13.
J Clin Epidemiol ; 54(5): 482-7, 2001 May.
Artículo en Inglés | MEDLINE | ID: mdl-11337211

RESUMEN

Recall bias is possible in a prospective cohort study when exposure status is transient and must be periodically recalled, and ascertainment occurs after symptom onset. We know of no published demonstration of such bias at play in a prospective cohort study. In a substudy of a randomized clinical trial, 308 participants were prospectively followed to investigate potential acute triggers of ocular herpes simplex virus (HSV) recurrences. Participants reported on the presence of systemic infection or high psychological stress (exposures) on a home log that was completed weekly for up to 15 months and mailed to the study's coordinating centers. By protocol, exposure reporting was to occur on the last day of the week (Sunday) so that a prospective 1-week lag period between exposure and outcome in the following week could be assessed. The study outcome was development of a recurrence of ocular HSV disease documented by clinical examination. Using 35 weekly reports of exposure properly completed before the week of an outcome, there was no evidence of higher risk of HSV recurrence associated with systemic infection (rate ratio = 0.62, 95% confidence interval [CI]: 0.19-2.02) or high psychological stress rate (ratio = 0.0, 95% CI: 0.0-undefined). In contrast, when the analysis was based on 26 weekly reports of exposure improperly completed on or after the date of outcome, the risk of recurrence associated with systemic infection was estimated to be 4-fold (rate ratio = 4.07, 95% CI: 1.84-8.98), and there was a suggestion of a 2-fold risk associated with high psychological stress (rate ratio = 2.02, 95% CI: 0.69-5.91). Without real-time monitoring of exposure reporting, preservation of the temporal exposure-disease relationship-an implicit assumption of the prospective cohort study design-may be particularly tenuous when transient exposures are investigated longitudinally.


Asunto(s)
Sesgo , Queratitis Herpética/epidemiología , Recuerdo Mental , Estudios de Cohortes , Femenino , Florida/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Recurrencia , Factores de Riesgo , Factores de Tiempo
15.
J AAPOS ; 4(3): 145-9, 2000 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-10849389

RESUMEN

PURPOSE: Botulinum toxin (BTX), injected into the ipsilateral medial rectus muscle, has been advocated for the management of acute traumatic sixth nerve palsy or paresis. We conducted a multicenter, nonrandomized, data collection study to evaluate recovery rates of patients treated with either conservative measures or BTX. METHODS: All members of the American Association for Pediatric Ophthalmology and Strabismus and the North American Neuro-Ophthalmology Society were invited to enroll patients with acute traumatic sixth nerve palsy or paresis during a 2-year period (between March 1996 and February 1998). The BTX group was defined as patients who received a BTX injection within 3 months of injury. Recovery at 6 months from injury was defined as absence of diplopia in the primary position and a distance esotropia of no more than 10 PD in the primary position. Nonrecovered patients with less than 6 months of follow-up (n = 15) were excluded. RESULTS: Eighty-four eligible patients were enrolled by 46 investigators. Sixty-two patients (74%) were treated conservatively and 22 (26%) with BTX. Sixty-two patients (74%) had unilateral palsy, and 22 (26%) had bilateral palsy. Recovery rates were similar between BTX and conservatively treated patients (overall: 73% vs 71%, P = 1.0; unilateral: 81% vs 83%, P = 1.0; bilateral: 50% vs 38%, P = 0.66, respectively). CONCLUSIONS: In this prospective multicenter study of acute traumatic sixth nerve palsy or paresis, patients treated with either BTX or conservative measures had similar high recovery rates.


Asunto(s)
Traumatismo del Nervio Abducente/tratamiento farmacológico , Antidiscinéticos/uso terapéutico , Toxinas Botulínicas/uso terapéutico , Diplopía/tratamiento farmacológico , Esotropía/tratamiento farmacológico , Músculos Oculomotores/efectos de los fármacos , Traumatismo del Nervio Abducente/complicaciones , Traumatismo del Nervio Abducente/fisiopatología , Enfermedad Aguda , Adolescente , Adulto , Anciano , Antidiscinéticos/administración & dosificación , Toxinas Botulínicas/administración & dosificación , Niño , Preescolar , Traumatismos Craneocerebrales/complicaciones , Diplopía/etiología , Diplopía/fisiopatología , Esotropía/etiología , Esotropía/fisiopatología , Movimientos Oculares/efectos de los fármacos , Femenino , Humanos , Inyecciones , Masculino , Persona de Mediana Edad , Músculos Oculomotores/inervación , Estudios Prospectivos , Resultado del Tratamiento , Visión Binocular
16.
Neurology ; 54(9): 1859-61, 2000 May 09.
Artículo en Inglés | MEDLINE | ID: mdl-10802800

RESUMEN

The association of the human leukocyte antigen (HLA)-DR2 allele with brain MRI signal abnormalities and with the development of MS was assessed in 178 patients enrolled in the Optic Neuritis Treatment Trial. HLA haplotype DR2 was present in 85 (48%) of the 178 patients. Its presence was associated with increased odds of probable or definite MS at 5 years (odds ratio, 1.92; 95% confidence interval, 1.01 to 3.67; p = 0.04). The association was most apparent among patients with signal abnormalities on baseline brain MRI.


Asunto(s)
Encéfalo/patología , Antígeno HLA-DR2/genética , Imagen por Resonancia Magnética , Esclerosis Múltiple/diagnóstico , Neuritis Óptica/diagnóstico , Administración Oral , Adulto , Alelos , Encéfalo/efectos de los fármacos , Quimioterapia Combinada , Femenino , Haplotipos/genética , Humanos , Infusiones Intravenosas , Masculino , Metilprednisolona/administración & dosificación , Metilprednisolona/efectos adversos , Persona de Mediana Edad , Esclerosis Múltiple/tratamiento farmacológico , Esclerosis Múltiple/genética , Neuritis Óptica/tratamiento farmacológico , Neuritis Óptica/genética , Prednisona/administración & dosificación , Prednisona/efectos adversos
17.
Pacing Clin Electrophysiol ; 23(3): 344-51, 2000 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-10750135

RESUMEN

Head upright tilt table testing has become an accepted method to measure an individual's predisposition to autonomically mediated periods of hypotension and bradycardia severe enough to cause frank syncope. At the same time it has become increasingly apparent that less profound falls in blood pressure, while not sufficient to result in loss of consciousness, may cause symptoms such as near syncope, vertigo, and dizziness. We describe a subgroup of adolescents that have a mild form of autonomic dysfunction that exhibit disabling symptoms such as postural tachycardia and palpitations, extreme fatigue, lightheadedness, exercise intolerance, and cognitive impairment. During baseline tilt table testing at a 70 degrees angle, these patients demonstrated a heart rate increase of > or = 30 beats/min (or a maximum heart rate of > or = 120 beats/min) within the first 10 minutes upright (not associated with profound hypotension), which reproduced their clinical symptom complex. Similar observations have been made in the adult population and has been termed the postural orthostatic tachycardia syndrome (POTS). We report that POTS may also occur in adolescents and represents a mild, potentially treatable form of autonomic dysfunction that can be readily identified during head upright tilt table testing.


Asunto(s)
Trastornos del Conocimiento/etiología , Ejercicio Físico , Síndrome de Fatiga Crónica/etiología , Postura , Taquicardia/complicaciones , Adolescente , Niño , Femenino , Humanos , Masculino , Síndrome , Taquicardia/diagnóstico , Taquicardia/terapia , Pruebas de Mesa Inclinada
18.
J Am Coll Cardiol ; 34(6): 1750-9, 1999 Nov 15.
Artículo en Inglés | MEDLINE | ID: mdl-10577566

RESUMEN

OBJECTIVES: To determine the relative degree of revascularization obtained with bypass surgery versus angioplasty in a randomized trial of patients with multivessel disease requiring revascularization (Bypass Angioplasty Revascularization Investigation [BARI]), one-year catheterization was performed in 15% of patients. BACKGROUND: Complete revascularization has been correlated with improved outcome after coronary artery bypass grafting (CABG) but not with percutaneous transluminal coronary angioplasty (PTCA). Relative degrees of revascularization after PTCA and surgery have not been previously compared and correlated with symptoms. METHODS: Consecutive patients at four BARI centers consented to recatheterization one year after revascularization. Myocardial jeopardy index (MJI), the percentage of myocardium jeopardized by > or =50% stenoses, was compared and correlated with angina status. RESULTS: Angiography was completed in 270 of 362 consecutive patients (75%) after initial CABG (n = 135) or PTCA (n = 135). Coronary artery bypass grafting patients had 3+/-0.9 distal anastomoses and PTCA patients had 2.4+/-1.1 lesions attempted at initial revascularization. At one year, 20.5% of CABG patients had > or =1 totally occluded graft and 86.9% of vein graft, and 91.6% of internal mammary artery distal anastomotic sites had <50% stenosis. One year jeopardy index in surgery patients was 14.1+/-11%, 46.6+/-20.3% improved from baseline. Initial PTCA was successful in 86.9% of lesions and repeat revascularization was performed in 48.4% of PTCA patients by one year. Myocardial jeopardy index one year after PTCA was 25.5+/-22.8%, an improvement of 33.8+/-26.1% (p<0.01 for greater improvement with CABG than PTCA). At one year, 29.6% of PTCA patients had angina versus 11.9% of surgery patients, p = 0.004. One-year myocardial jeopardy was predictive of angina (odds ratio 1.28 for the presence of angina per every 10% increment in myocardial jeopardy, p = 0.002). Randomization to PTCA rather than CABG also predicted angina (odds ratio 2.19, p = 0.03). CONCLUSIONS: In this one-year angiographic substudy of BARI, CABG provided more complete revascularization than PTCA, and CABG likewise improved angina to a greater extent than PTCA.


Asunto(s)
Angioplastia Coronaria con Balón , Puente de Arteria Coronaria , Enfermedad Coronaria/terapia , Angina de Pecho/terapia , Angiografía Coronaria , Enfermedad Coronaria/diagnóstico por imagen , Femenino , Humanos , Anastomosis Interna Mamario-Coronaria , Masculino , Persona de Mediana Edad , Estudios Multicéntricos como Asunto , Ensayos Clínicos Controlados Aleatorios como Asunto , Recurrencia , Vena Safena/trasplante , Resultado del Tratamiento
19.
Circulation ; 100(9): 910-7, 1999 Aug 31.
Artículo en Inglés | MEDLINE | ID: mdl-10468520

RESUMEN

BACKGROUND: In PTCA patients with multivessel coronary artery disease, incomplete revascularization (IR) is the result of both pre-PTCA strategy and initial lesion outcome. The unique contribution of these components on long-term patient outcome is uncertain. METHODS AND RESULTS: From the Bypass Angioplasty Revascularization Investigation (BARI), 2047 patients who underwent first-time PTCA were evaluated. Before enrollment, all significant lesions were assessed by the PTCA operator for clinical importance and intention to dilate. Complete revascularization (CR) was defined as successful dilatation of all clinically relevant lesions. Planned CR was indicated in 65% of all patients. More lesions were intended for PTCA in these patients compared with those with planned IR (2.8 versus 2.1). Successful dilatation of all intended lesions occurred in 45% of patients with planned CR versus 56% with planned IR (P<0. 001). In multivariable analysis, planned IR (versus planned CR), initial lesions attempted (not all versus all intended lesions attempted), and initial lesion outcome (not all versus all attempted lesions successful) were unrelated to 5-year risk of cardiac death or death/myocardial infarction but were all independently related to risk of CABG. CONCLUSIONS: Overall, a pre-PTCA strategy of IR in BARI-like patients appears comparable to a strategy of CR except for a higher need for CABG. Whether the use of new devices may attenuate the elevated risk of CABG in patients with multivessel disease and planned IR remains to be determined.


Asunto(s)
Angioplastia Coronaria con Balón , Enfermedad Coronaria/patología , Enfermedad Coronaria/terapia , Anciano , Factores de Confusión Epidemiológicos , Supervivencia sin Enfermedad , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Índice de Severidad de la Enfermedad , Resultado del Tratamiento
20.
J Am Coll Cardiol ; 33(6): 1627-36, 1999 May.
Artículo en Inglés | MEDLINE | ID: mdl-10334434

RESUMEN

OBJECTIVES: Our objective was to determine whether a strategy of intended incomplete percutaneous transluminal coronary angioplasty revascularization (IR) compromises long-term patient outcome. BACKGROUND: Complete angioplasty revascularization (CR) is often not planned nor attempted in patients with multivessel coronary disease, and the extent to which this influences outcome is unclear. METHODS: Before randomization, in the Bypass Angioplasty Revascularization Investigation, all angiograms were assessed for intended CR or IR via angioplasty. Outcomes were compared among patients with IR intended if assigned to angioplasty, randomized to coronary artery bypass graft surgery (CABG) versus angioplasty; and within angioplasty patients only, among patients with IR versus CR intended. RESULTS: At 5 years, there was a trend for higher overall (88.6% vs. 84.0%) and cardiac survival (94.5% vs. 92.1%) in CABG versus angioplasty patients with IR intended. The excess mortality in angioplasty patients occurred solely in diabetic subjects; overall and cardiac survival were similar among nondiabetic CABG and angioplasty patients. Freedom from myocardial infarction (MI) at 5 years was higher in nondiabetic CABG versus angioplasty patients (92.4% vs. 85.2%, p = 0.02), vet was similar to the rate observed (85%) in nondiabetic CABG and angioplasty patients with CR intended. Five-year rates of death, cardiac death, repeat revascularization and angina were similar in all angioplasty patients with IR versus CR intended. However, a trend for greater freedom from subsequent CABG was seen in CR patients (70.3% vs. 64.0%, p = 0.08). CONCLUSIONS: Intended incomplete angioplasty revascularization in nondiabetic patients with multivessel disease who are candidates for both angioplasty and CABG does not compromise long-term survival; however, subsequent need for CABG may be increased with this strategy. Whether the risk of long-term MI is also increased remains uncertain.


Asunto(s)
Angioplastia Coronaria con Balón , Puente de Arteria Coronaria , Enfermedad Coronaria/terapia , Anciano , Canadá , Angiografía Coronaria , Enfermedad Coronaria/diagnóstico por imagen , Enfermedad Coronaria/mortalidad , Angiopatías Diabéticas/diagnóstico por imagen , Angiopatías Diabéticas/mortalidad , Angiopatías Diabéticas/terapia , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Evaluación de Procesos y Resultados en Atención de Salud , Recurrencia , Tasa de Supervivencia , Estados Unidos
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