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1.
Chiropr Man Therap ; 32(1): 8, 2024 03 06.
Artículo en Inglés | MEDLINE | ID: mdl-38448998

RESUMEN

BACKGROUND: The cost of spine-related pain in the United States is estimated at $134.5 billion. Spinal pain patients have multiple options when choosing healthcare providers, resulting in variable costs. Escalation of costs occurs when downstream costs are added to episode costs of care. The purpose of this review was to compare costs of chiropractic and medical management of patients with spine-related pain. METHODS: A Medline search was conducted from inception through October 31, 2022, for cost data on U.S. adults treated for spine-related pain. The search included economic studies, randomized controlled trials and observational studies. All studies were independently evaluated for quality and risk of bias by 3 investigators and data extraction was performed by 3 investigators. RESULTS: The literature search found 2256 citations, of which 93 full-text articles were screened for eligibility. Forty-four studies were included in the review, including 26 cohort studies, 17 cost studies and 1 randomized controlled trial. All included studies were rated as high or acceptable quality. Spinal pain patients who consulted chiropractors as first providers needed fewer opioid prescriptions, surgeries, hospitalizations, emergency department visits, specialist referrals and injection procedures. CONCLUSION: Patients with spine-related musculoskeletal pain who consulted a chiropractor as their initial provider incurred substantially decreased downstream healthcare services and associated costs, resulting in lower overall healthcare costs compared with medical management. The included studies were limited to mostly retrospective cohorts of large databases. Given the consistency of outcomes reported, further investigation with higher-level designs is warranted.


Asunto(s)
Quiropráctica , Dolor Musculoesquelético , Adulto , Humanos , Visitas a la Sala de Emergencias , Dolor Musculoesquelético/terapia
2.
BMC Gastroenterol ; 23(1): 433, 2023 Dec 11.
Artículo en Inglés | MEDLINE | ID: mdl-38082231

RESUMEN

BACKGROUND: Acceptability and tolerance of bowel preparation is critical to overcome patient hesitancy in undergoing colon cancer screening and surveillance colonoscopy. To improve patient experience, a new sports drink-flavored bowel preparation containing polyethylene glycol (PEG) and sulfate salts (FPSS) was developed to provide a similar experience to a commonly used but not United States Food and Drug Administration (FDA) approved PEG and sports drink bowel preparation (PEG-SD), while also achieving improved cleansing efficacy. METHODS: This FPSS preparation, approved by the FDA in June 2023, was evaluated in a non-randomized Phase 2 study in which 40 patients requiring colonoscopy were prepared with FPSS and 20 with PEG-SD. RESULTS: Overall cleansing success was high with FPSS based on unblinded local endoscopist assessment (93%) and blinded central reading (97%), exceeding PEG-SD which achieved success rates of 84% (local read), 74% and 68% (blinded central reads). Similar differences favoring FPSS were seen for excellent preparations and cleansing success by colon segment as rated by local endoscopists. Both preparations were well-tolerated, with 93% of FPSS patients rating their preparation as Tolerable to Very Easy to consume, compared to 100% of PEG-SD. Patients who had previously taken a preparation for colonoscopy found FPSS and PEG-SD better than their prior preparation (73% and 70%, respectively) and nearly all would request their assigned study preparation again in the future. About two thirds of FPSS patients agreed that the preparation tasted similar to a sports drink. CONCLUSION: The new sports drink-like flavored preparation compares favorably to PEG-SD for bowel cleansing efficacy while achieving similar patient satisfaction. The study was registered at www. CLINICALTRIALS: gov (NCT03328507) on 01/11/2017.


Asunto(s)
Catárticos , Laxativos , Humanos , Catárticos/efectos adversos , Sulfatos , Polietilenglicoles/efectos adversos , Colonoscopía
3.
J Clin Gastroenterol ; 57(9): 920-927, 2023 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-37490604

RESUMEN

INTRODUCTION: A new bowel preparation for colonoscopy has been developed containing poorly absorbed sulfate salts and polyethylene glycol 3350, which retain water within the intestinal lumen resulting in copious diarrhea, thereby cleansing the bowel. The product was formulated to be safe and effective with a sports drink-like flavor. This study evaluated the new flavored polyethylene glycol and sulfate solution (FPSS) compared with a Food and Drug Administration-approved bowel preparation containing sulfate salts only [oral sulfate solution (OSS)]. METHODS: Five hundred adults were enrolled in this multicenter, noninferiority study. Subjects were assigned FPSS or OSS administered in split-dose regimens (PM/AM). FPSS subjects took 2 L of the flavored osmotic solution (1 L at night and 1 L in the morning). OSS was taken according to its approved labeling. Colonoscopies were graded globally and segmentally by blinded local investigators using a 4-point scale (excellent, good, fair, and poor), with "good" and "excellent" considered successful. Safety was assessed by adverse events (AEs) and laboratory testing. RESULTS: A high rate of cleansing success was seen with FPSS (94%), which was noninferior to OSS (94%). This conclusion was confirmed by blinded central readers. Segmental success rates were >90% for both preparations, including the right colon. Questionnaire ratings indicated the FPSS experience was preferred over OSS with 87% of FPSS subjects noting their preparation was "tolerable" to "very easy" to consume versus 74% for OSS. The majority of FPSS subjects agreed their preparation tasted like a sports drink. Gastrointestinal symptoms were the most common AEs. There was no difference between preparations for any AE and no clinically significant differences in laboratory parameters. CONCLUSIONS: The new sports drink-like flavored preparation achieved a high level of cleansing in the study, demonstrating noninferiority to OSS. FPSS was well-tolerated with low rates of expected gastrointestinal symptoms. The optimized flavor of FPSS resulted in significantly better acceptance ratings.


Asunto(s)
Catárticos , Sulfatos , Humanos , Adulto , Sulfatos/efectos adversos , Catárticos/efectos adversos , Sales (Química) , Polietilenglicoles/efectos adversos , Colonoscopía/métodos , Compuestos de Azufre
4.
Basic Res Cardiol ; 117(1): 31, 2022 06 21.
Artículo en Inglés | MEDLINE | ID: mdl-35727392

RESUMEN

Remote ischaemic preconditioning (RIPC) using transient limb ischaemia failed to improve clinical outcomes following cardiac surgery and the reasons for this remain unclear. In the ERIC-GTN study, we evaluated whether concomitant nitrate therapy abrogated RIPC cardioprotection. We also undertook a post-hoc analysis of the ERICCA study, to investigate a potential negative interaction between RIPC and nitrates on clinical outcomes following cardiac surgery. In ERIC-GTN, 185 patients undergoing cardiac surgery were randomized to: (1) Control (no RIPC or nitrates); (2) RIPC alone; (3); Nitrates alone; and (4) RIPC + Nitrates. An intravenous infusion of nitrates (glyceryl trinitrate 1 mg/mL solution) was commenced on arrival at the operating theatre at a rate of 2-5 mL/h to maintain a mean arterial pressure between 60 and 70 mmHg and was stopped when the patient was taken off cardiopulmonary bypass. The primary endpoint was peri-operative myocardial injury (PMI) quantified by a 48-h area-under-the-curve high-sensitivity Troponin-T (48 h-AUC-hs-cTnT). In ERICCA, we analysed data for 1502 patients undergoing cardiac surgery to investigate for a potential negative interaction between RIPC and nitrates on clinical outcomes at 12-months. In ERIC-GTN, RIPC alone reduced 48 h-AUC-hs-cTnT by 37.1%, when compared to control (ratio of AUC 0.629 [95% CI 0.413-0.957], p = 0.031), and this cardioprotective effect was abrogated in the presence of nitrates. Treatment with nitrates alone did not reduce 48 h-AUC-hs-cTnT, when compared to control. In ERICCA there was a negative interaction between nitrate use and RIPC for all-cause and cardiovascular mortality at 12-months, and for risk of peri-operative myocardial infarction. RIPC alone reduced the risk of peri-operative myocardial infarction, compared to control, but no significant effect of RIPC was demonstrated for the other outcomes. When RIPC and nitrates were used together they had an adverse impact in patients undergoing cardiac surgery with the presence of nitrates abrogating RIPC-induced cardioprotection and increasing the risk of mortality at 12-months post-cardiac surgery in patients receiving RIPC.


Asunto(s)
Procedimientos Quirúrgicos Cardíacos , Precondicionamiento Isquémico Miocárdico , Precondicionamiento Isquémico , Infarto del Miocardio , Procedimientos Quirúrgicos Cardíacos/efectos adversos , Humanos , Precondicionamiento Isquémico/efectos adversos , Infarto del Miocardio/etiología , Nitratos , Resultado del Tratamiento , Troponina T
5.
Bioorg Med Chem ; 29: 115837, 2021 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-33223463

RESUMEN

A series of C-2 derivatized 8-sulfonamidoquinolines were evaluated for their antibacterial activity against the common mastitis causative pathogens Streptococcus uberis, Staphylococcus aureus and Escherichia coli, both in the presence and absence of supplementary zinc (50 µM ZnSO4). The vast majority of compounds tested were demonstrated to be significantly more active against S. uberis when in the presence of supplementary zinc (MICs as low as 0.125 µg/mL were observed in the presence of 50 µM ZnSO4). Compounds 5, 34-36, 39, 58, 79, 82, 94 and 95 were shown to display the greatest antibacterial activity against S. aureus (MIC ≤ 8 µg/mL; both in the presence and absence of supplementary zinc), while compounds 56, 58 and 66 were demonstrated to also exhibit activity against E. coli (MIC ≤ 16 µg/mL; under all conditions). Compounds 56, 58 and 66 were subsequently confirmed to be bactericidal against all three mastitis pathogens studied, with MBCs (≥3log10 CFU/mL reduction) of ≤ 32 µg/mL (in both the presence and absence of 50 µM ZnSO4). To validate the sanitizing activity of compounds 56, 58 and 66, a quantitative suspension disinfection (sanitizer) test was performed. Sanitizing activity (>5log10 CFU/mL reduction in 5 min) was observed against both S. uberis and E. coli at compound concentrations as low as 1 mg/mL (compounds 56, 58 and 66), and against S. aureus at 1 mg/mL (compound 58); thereby validating the potential of compounds 56, 58 and 66 to function as topical sanitizers designed explicitly for use in non-human applications.


Asunto(s)
Amidas/farmacología , Antibacterianos/farmacología , Escherichia coli/efectos de los fármacos , Quinolinas/farmacología , Staphylococcus aureus/efectos de los fármacos , Streptococcus/efectos de los fármacos , Amidas/síntesis química , Amidas/química , Antibacterianos/síntesis química , Antibacterianos/química , Relación Dosis-Respuesta a Droga , Pruebas de Sensibilidad Microbiana , Estructura Molecular , Quinolinas/síntesis química , Quinolinas/química , Relación Estructura-Actividad
6.
Am J Gastroenterol ; 116(2): 319-328, 2021 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-33165006

RESUMEN

INTRODUCTION: A new tablet-based bowel prep for colonoscopy has been developed containing poorly absorbed sulfate salts which act to retain water within the intestinal lumen resulting in a copious diarrhea, thereby cleansing the bowel. This study evaluated the safety and efficacy of these oral sulfate tablets (OST) compared with a US FDA-approved bowel prep solution containing PEG3350, electrolytes, and ascorbate (polyethylene glycol and ascorbate [PEG-EA]). METHODS: Five hundred fifteen adult patients (mean 57y) were enrolled in this single-blind, multicenter, noninferiority study. Subjects were assigned either PEG-EA or OST to be administered in a split-dose regimen starting the evening before colonoscopy. PEG-EA was taken according to its approved labeling (1 L of prep solution with 16 oz. of additional water) in the evening and again in the morning. OST patients took a total of 24 tablets. OST patients were administered 12 tablets in the evening, and the following morning. Patients consumed 16 ounces of water with each dose of 12 tablets and drank an additional 32 oz. of water with each dose. Colonoscopies were performed by blinded investigators. Cleansing efficacy was evaluated globally and segmentally using a 4-point scale (Excellent-no more than small bits of feces/fluid which can be suctioned easily; achieves clear visualization of the entire colonic mucosa. Good-feces and fluid requiring washing and suctioning, but still achieves clear visualization of the entire colonic mucosa. Fair-enough feces even after washing and suctioning to prevent clear visualization of the entire colonic mucosa. Poor-large amounts of fecal residue and additional bowel preparation required). Scores of Good or Excellent were considered to be a success. Safety was assessed by spontaneously reported adverse events, solicited ratings of expected prep symptoms, and laboratory testing. RESULTS: A high rate of cleansing success was seen with OST (92%), which was noninferior to PEG-EA (89%). Only a small proportion of subjects rated their expected gastrointestinal symptoms as severe (<5% for both preps). No clinically significant differences were seen between preps for chemistry and hematology parameters. No serious adverse experiences were reported with OST. DISCUSSION: Sulfate tablets achieved a high level of cleansing in the study, comparable with US FDA-approved preps. OST was noninferior to PEG-EA in this study and achieved significantly more Excellent preps overall and in the proximal colon. The OST prep was well-tolerated, with a similar rate of spontaneously reported adverse experiences to PEG-EA and a low rate of severe expected gastrointestinal symptoms.


Asunto(s)
Catárticos/uso terapéutico , Colonoscopía/métodos , Sulfato de Magnesio/uso terapéutico , Polietilenglicoles/uso terapéutico , Cloruro de Potasio/uso terapéutico , Cuidados Preoperatorios/métodos , Sulfatos/uso terapéutico , Combinación de Medicamentos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Náusea/inducido químicamente , Satisfacción del Paciente , Método Simple Ciego , Comprimidos , Vómitos/inducido químicamente
7.
Bioorg Med Chem Lett ; 30(11): 127110, 2020 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-32229060

RESUMEN

A series of substituted sulfonamide bioisosteres of 8-hydroxyquinoline were evaluated for their antibacterial activity against the common mastitis causative pathogens Streptococcus uberis, Staphylococcus aureus and Escherichia coli, both in the presence and absence of supplementary zinc. Compounds 9a-e, 10a-c, 11a-e, 12 and 13 were demonstrated to have MICs of 0.0625 µg/mL against S. uberis in the presence of 50 µM ZnSO4. Against S. aureus compounds 9g (MIC 4 µg/mL) and 11d (MIC 8 µg/mL) showed the greatest activity, whereas all compounds were found to be inactive against E. coli (MIC > 256 µg/mL); again in the presence of 50 µM ZnSO4. All compounds were demonstrated to be significantly less active in the absence of supplementary zinc. Compound 9g was subsequently confirmed to be bactericidal, with an MBC (≥3log10 cfu/mL reduction) of 0.125 µg/mL against S. uberis in the presence of 50 µM ZnSO4. To validate the sanitising activity of compound 9g in the presence of supplementary zinc, a quantitative suspension disinfection (sanitizer) test was performed. In this preliminary test, sanitizing activity (>5log10 reduction of CFU/mL in 5 min) was observed against S. uberis for compound 9g at concentrations as low as 1 mg/mL, validating the potential of this compound to function as a topical sanitizer against the major environmental mastitis-causing microorganism S. uberis.


Asunto(s)
Antibacterianos/química , Oxiquinolina/química , Sulfanilamida/química , Zinc/química , Antibacterianos/farmacología , Escherichia coli/efectos de los fármacos , Interacciones Hidrofóbicas e Hidrofílicas , Pruebas de Sensibilidad Microbiana , Oxiquinolina/farmacología , Staphylococcus aureus/efectos de los fármacos , Streptococcus/efectos de los fármacos , Relación Estructura-Actividad
8.
Autism Res ; 13(6): 988-997, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-32198982

RESUMEN

For typically developing adolescents, being bullied is associated with increased risk of suicidality. Although adolescents with autism spectrum disorder (ASD) are at increased risk of both bullying and suicidality, there is very little research that examines the extent to which an experience of being bullied may increase suicidality within this specific population. To address this, we conducted a retrospective cohort study to investigate the longitudinal association between experiencing bullying and suicidality in a clinical population of 680 adolescents with ASD. Electronic health records of adolescents (13-17 years), using mental health services in South London, with a diagnosis of ASD were analyzed. Natural language processing was employed to identify mentions of bullying and suicidality in the free text fields of adolescents' clinical records. Cox regression analysis was employed to investigate the longitudinal relationship between bullying and suicidality outcomes. Reported experience of bullying in the first month of clinical contact was associated with an increased risk suicidality over the follow-up period (hazard ratio = 1.82; 95% confidence interval = 1.28-2.59). In addition, female gender, psychosis, affective disorder diagnoses, and higher intellectual ability were all associated with suicidality at follow-up. This study is the first to demonstrate the strength of longitudinal associations between bullying and suicidality in a clinical population of adolescents with ASD, using automated approaches to detect key life events within clinical records. Our findings provide support for identifying and dealing with bullying in schools, and for antibullying strategy's incorporation into wider suicide prevention programs for young people with ASD. Autism Res 2020, 13: 988-997. © 2020 The Authors. Autism Research published by International Society for Autism Research published by Wiley Periodicals, Inc. LAY SUMMARY: We investigated the relationship between bullying and suicidality in young people with autism spectrum disorder (ASD). We examined the clinical records of adolescents (aged 13-18 years old) with ASD in South London who were receiving treatment from Child and Adolescent Mental Health Services. We found that if they reported being bullied in the first month after they were first seen by mental health services, they were nearly twice as likely to go on to develop suicidal thoughts or behaviors.


Asunto(s)
Trastorno del Espectro Autista/epidemiología , Trastorno del Espectro Autista/psicología , Acoso Escolar/estadística & datos numéricos , Suicidio/psicología , Suicidio/estadística & datos numéricos , Adolescente , Femenino , Humanos , Londres/epidemiología , Masculino , Estudios Retrospectivos
9.
J Chiropr Humanit ; 26: 31-52, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31871437

RESUMEN

OBJECTIVES: The objectives of this study were to critically evaluate the methodology and conclusions of the fiscal notes prepared by the state of Missouri for including doctors of chiropractic (DCs) under Missouri Medicaid and to develop a dynamic scoring model that calculates the savings if DCs were allowed to offer treatment under Missouri Medicaid. METHODS: We used a secondary analysis to determine the cost-saving assumptions to be incorporated into a dynamic model. We reviewed the literature on efficiency and effectiveness of DC-delivered care regarding the most reliable assumptions concerning cost savings and utilization. The assumptions for percentage savings from DC-provided care and the avoidance of spinal surgeries were then combined in the dynamic scoring model to determine projected cost savings from adding DCs as covered providers under Missouri Medicaid. The actual cost of opioid abuse in Missouri was then determined as a basis to measure cost savings from adding DC care as an alternative therapy for the management of neck and low back pain. DISCUSSION: The Missouri Health Division initially used the static scoring approach to evaluate proposals to cover DC care under Missouri Medicaid. This approach only considers added costs from a legislative change. Because of this, we proposed that the Missouri Health Division used flawed methodology and data in their calculations for the fiscal note regarding the cost of including care from DCs under Missouri Medicaid. After consideration of the approach used in this study, the Committee adopted some important elements of dynamic scoring. Based on our computations and the dynamic scoring model, we determined that there would be a cost savings to the state of Missouri of between $14.1 and $49.2 million once DCs are included as covered providers under Missouri Medicaid. This study also supports the proposition that treatment by DCs for neck and lower back pain may reduce the use and abuse of opioid prescription drugs. CONCLUSION: Policymakers may unintentionally rely on flawed assumptions and methodologies such as static scoring, which we propose results in flawed conclusions. Legislative options involve some additional cost. The issue is whether proposed legislative options offer more effective outcomes along with more efficient cost. Using a dynamic scoring model to incorporate savings from 3 primary sources, we found that (1) chiropractic care provides better outcomes at lower cost, (2) chiropractic treatment and care leads to a reduction in cost of spinal surgery, and (3) chiropractic care leads to cost savings from reduced use and abuse of opioid prescription drugs.

10.
Psychol Psychother ; 92(1): 131-147, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-29603550

RESUMEN

PURPOSE: The theory of attachment has informed our understanding of survival and well-being throughout the lifespan. There is a growing interest in the relationship between attachment and symptoms of post-traumatic stress (PTS). Emerging evidence points to important links between attachment and PTS, yet current theoretical and clinical understandings of PTS symptoms and attachment remain relatively disparate. The current systematic review aimed to synthesize, describe, and critique evidence demonstrating the links between attachment and PTS in adults. It also aimed to explore whether the relationship between attachment and PTS differs according to the nature of the traumatic event. METHODS: Searches were conducted using PsycINFO, the Cochrane Library, Medline, and Google Scholar to identify empirical studies focusing on PTS in adults. RESULTS: Twenty-one papers were identified. Attachment was shown to have moderating and mediating influences on the relationship between trauma and PTS. This varied according to the type of trauma, and how symptoms of PTS were reported across the different attachment styles. Methodological rigour varied across studies. Clinical and research implications are discussed, including the consideration of attachment security in assessment and formulation. CONCLUSIONS: Although findings were mixed, this review suggests that there is an important link between attachment and PTS. It supports the current emerging evidence demanding the development of a more unified theoretical framework for attachment, types of trauma, and symptoms of PTS. PRACTITIONER POINTS: The findings discussed in this review have important implications for the treatment of PTS symptoms. Consideration of attachment styles in formulations is likely to inform treatment plans. There is increasing evidence to suggest that assessing and accounting for attachment style in therapy may improve the chances of successful treatment.


Asunto(s)
Apego a Objetos , Trastornos por Estrés Postraumático/psicología , Humanos , Modelos Psicológicos
11.
Clin Child Fam Psychol Rev ; 21(1): 94-108, 2018 03.
Artículo en Inglés | MEDLINE | ID: mdl-28932919

RESUMEN

The adverse social and physical conditions of homelessness pose significant developmental risks for children, which may be compounded or buffered by the quality of parenting behaviour they are exposed to. There is currently a limited understanding of how parents approach their care-giving role and responsibilities while adjusting to the experience of homelessness. Advancing knowledge in this area is essential for developing acceptable, appropriate and effective interventions to support highly marginalised and vulnerable homeless families. This review explored homeless parents' perceptions of how homelessness affects their parenting behaviour and identified adaptive strategies that parents may use to mitigate the potentially negative impacts of homelessness on the quality of care-giving. A systematic search of four electronic databases (ASSIA, PsycINFO, Web of Science and MEDLINE) identified 13 published qualitative studies, all originating from the USA, which explored parenting behaviour in homeless contexts. The studies were critically appraised using the CASP qualitative assessment tool. Thematic synthesis identified the following determinants of parenting behaviour; negative self-concept in the parental role, parental mental health, material resources, challenges to autonomy and self-efficacy, daily hassles, physical environment and service context, stigma, child characteristics and lack of support. These were synthesised thematically using existing models of parenting determinants and positive parenting. Findings indicate substantive impacts of homelessness on parental mental health, parenting authority, material resources, parenting environments and social support. Parents developed a number of adaptive methods to negotiate the challenges of homeless parenting such as maintaining a positive mindset, cherishing the parental role and developing practical strategies. We conclude with recommendations that service providers should tailor parenting support to resource-constrained circumstances and that further research is required in order to better understand experiences of homeless parents in other international contexts.


Asunto(s)
Adaptación Psicológica , Personas con Mala Vivienda/psicología , Responsabilidad Parental/psicología , Padres/psicología , Adulto , Niño , Humanos , Investigación Cualitativa
12.
Int J Cardiol ; 252: 117-121, 2018 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-29249421

RESUMEN

BACKGROUND: There is concern that the development of heart failure and atrial fibrillation has a detrimental influence on clinical outcomes. The aim of this study was to assess all-cause mortality and length of hospital stay in patients with chronic and new-onset concomitant AF and HF. METHODS: Using the ACALM registry, we analysed adults hospitalised between 2000 and 2013 with AF and HF and assessed prevalence, mortality and length of hospital stay. Patients with HF and/or AF at baseline (study-entry) were compared with patients who developed new-onset disease during follow-up. RESULTS: Of 929,552 patients, 31,695 (3.4%) were in AF without HF, 20,768 (2.2%) had HF in sinus rhythm, and 10,992 (1.2%) had HF in AF. Patients with HF in AF had the greatest all-cause mortality (70.8%), followed by HF in sinus rhythm (64.1%) and AF alone (45.1%, p<0.0001). Patients that developed new-onset AF, HF or both had significantly worse mortality (58.5%, 70.7% and 74.8% respectively) compared to those already with the condition at baseline (48.5%, 63.7% and 67.2% respectively, p<0.0001). Patients with HF in AF had the longest length of hospital stay (9.41days, 95% CI 8.90-9.92), followed by HF in sinus rhythm (7.67, 95% CI 7.34-8.00) and AF alone (6.05, 95% CI 5.78-6.31). CONCLUSIONS: Patients with HF in AF are at a greater risk of mortality and longer hospital stay compared to patients without the combination. New-onset AF or HF is associated with significantly worse prognosis than long-standing disease.


Asunto(s)
Algoritmos , Fibrilación Atrial/diagnóstico , Fibrilación Atrial/mortalidad , Insuficiencia Cardíaca/diagnóstico , Insuficiencia Cardíaca/mortalidad , Tiempo de Internación/tendencias , Adulto , Anciano , Anciano de 80 o más Años , Fibrilación Atrial/terapia , Comorbilidad , Estudios Transversales , Femenino , Estudios de Seguimiento , Insuficiencia Cardíaca/terapia , Humanos , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Mortalidad/tendencias , Estudios Prospectivos , Sistema de Registros , Factores de Tiempo , Reino Unido/epidemiología
13.
Ecology ; 98(5): 1419-1433, 2017 May.
Artículo en Inglés | MEDLINE | ID: mdl-28295286

RESUMEN

The irregular appearance of planktonic algae blooms off the coast of southern California has been a source of wonder for over a century. Although large algal blooms can have significant negative impacts on ecosystems and human health, a predictive understanding of these events has eluded science, and many have come to regard them as ultimately random phenomena. However, the highly nonlinear nature of ecological dynamics can give the appearance of randomness and stress traditional methods-such as model fitting or analysis of variance-to the point of breaking. The intractability of this problem from a classical linear standpoint can thus give the impression that algal blooms are fundamentally unpredictable. Here, we use an exceptional time series study of coastal phytoplankton dynamics at La Jolla, CA, with an equation-free modeling approach, to show that these phenomena are not random, but can be understood as nonlinear population dynamics forced by external stochastic drivers (so-called "stochastic chaos"). The combination of this modeling approach with an extensive dataset allows us to not only describe historical behavior and clarify existing hypotheses about the mechanisms, but also make out-of-sample predictions of recent algal blooms at La Jolla that were not included in the model development.


Asunto(s)
Ecosistema , Monitoreo del Ambiente/métodos , Eutrofización , Microalgas/crecimiento & desarrollo , California , Humanos , Fitoplancton/crecimiento & desarrollo , Plancton/crecimiento & desarrollo
14.
Cardiovasc Drugs Ther ; 31(1): 63-75, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-28185035

RESUMEN

Anthracycline chemotherapy maintains a prominent role in treating many forms of cancer. Cardiotoxic side effects limit their dosing and improved cancer outcomes expose the cancer survivor to increased cardiovascular morbidity and mortality. The basic mechanisms of cardiotoxicity may involve direct pathways for reactive oxygen species generation and topoisomerase 2 as well as other indirect pathways. Cardioprotective treatments are few and those that have been examined include renin angiotensin system blockade, beta blockers, or the iron chelator dexrazoxane. New treatments exploiting the ErbB or other novel pro-survival pathways, such as conditioning, are on the cardioprotection horizon. Even in the forthcoming era of targeted cancer therapies, the substantial proportion of today's anthracycline-treated cancer patients may become tomorrow's cardiac patient.


Asunto(s)
Antraciclinas/efectos adversos , Antibióticos Antineoplásicos/uso terapéutico , Cardiopatías/inducido químicamente , Miocitos Cardíacos/efectos de los fármacos , Animales , Cardiotoxicidad , Fármacos Cardiovasculares/uso terapéutico , Citoprotección , Cardiopatías/metabolismo , Cardiopatías/fisiopatología , Cardiopatías/prevención & control , Humanos , Miocitos Cardíacos/metabolismo , Miocitos Cardíacos/patología , Factores de Riesgo , Transducción de Señal/efectos de los fármacos , Factores de Tiempo , Troponina/metabolismo
15.
J Antimicrob Chemother ; 71(9): 2370-8, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-27550989

RESUMEN

Antimicrobial chemotherapy now spans 80 years and four generations. The healthcare epidemiologist has an important role to play in this field. Efforts focus in three areas: (i) minimizing the transmission of antimicrobial-resistant bacteria in healthcare settings (infection control); (ii) optimizing use of currently available antibacterial drugs (antibiotic stewardship); and (iii) recognizing and responding to opportunities for new drug development. For each area, the epidemiologist provides data that address four practical questions-'What is the problem?', 'What should be done?', 'Is it being done?' and 'Is it working?'. A team approach is crucial to acting on the epidemiological data. Examples are presented to illustrate different roles of the epidemiologist, and tools and measures that have been developed to address some problems of current importance. Monitoring of quality, integrity and security of data remains a major focus. The epidemiologist will continue to have a key role in antimicrobial chemotherapy.


Asunto(s)
Antiinfecciosos/uso terapéutico , Enfermedades Transmisibles/tratamiento farmacológico , Transmisión de Enfermedad Infecciosa/prevención & control , Utilización de Medicamentos/normas , Instituciones de Salud , Control de Infecciones/métodos , Enfermedades Transmisibles/transmisión , Epidemiólogos , Humanos , Estados Unidos
17.
Psychol Psychother ; 89(4): 464-482, 2016 12.
Artículo en Inglés | MEDLINE | ID: mdl-26530255

RESUMEN

OBJECTIVES: This research explored what happens when psychological input is offered in the inpatient setting and examined service users' and staff members' understanding and portrayal of these experiences. DESIGN: Narrative analysis, an interview design, was used to examine experiences of inpatient psychological interventions in National Health Service inpatient mental health settings. METHODS: Ten participants (four service users and six staff members; five males and five females; seven White British, one White Irish, one Black African, and one Black Caribbean) were recruited via clinical psychologists from an inpatient psychology department and participated in 18- to 90-min interviews. RESULTS: Evidence suggested that direct, indirect, and strategic psychological interventions were used in the inpatient setting, with formulation and the therapeutic relationship conceptualized as common features. Connections between inpatient psychology and change, evidenced in the stories, suggested that interventions can help people make sense of a crisis, improve relationships, and contribute to meaningful recovery. Evidence of barriers suggests that psychological input in this setting might not always be compatible with everyone's needs. CONCLUSIONS: This paper explored service users' and staff members' experiences of psychological input in the inpatient setting. The analysis revealed that psychological provision in the inpatient mental health setting is varied and encompasses direct and indirect input, valued by service users and clinicians. It also identified that psychological input in the acute inpatient mental health setting is perceived as meaningful and can lead to changes at an interpersonal and intrapersonal level. There is a sense that providing psychological thinking in the inpatient setting can be challenging due to environmental constraints and individual factors. This highlights the need for further research focused on the costs and clinical effectiveness of providing psychological thinking within the acute inpatient mental health setting. PRACTITIONER POINTS: Staff members and service users made connections between psychological input and change, suggesting that interventions can improve relationships, help people make sense of a crisis, and contribute to meaningful recovery. There are significant barriers to and challenges of providing psychological input in this setting: Some participants suggested that this approach might not suit everyone.


Asunto(s)
Actitud del Personal de Salud , Personal de Salud , Pacientes Internos/psicología , Trastornos Mentales/terapia , Servicios de Salud Mental/normas , Femenino , Humanos , Entrevistas como Asunto , Masculino , Narración , Reino Unido
18.
Br J Health Psychol ; 21(1): 190-203, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26333530

RESUMEN

OBJECTIVES: Sickle cell disease (SCD) is the UK's most common blood disorder causing sickle shaped red blood cells to block small blood vessels inducing both acute and chronic pain. A crucial factor in determining quality of life for those with SCD is the severity, timing and number of painful sickling episodes. However, little research focuses on the nature of pain and so it is poorly understood. The aim of this study is to provide an in-depth and meaning led account of the experience of SCD pain. DESIGN: Qualitative research design. METHODS: Seven face-to-face semi-structured interviews were conducted. Interviews were transcribed and analysed using Interpretative Phenomenological Analysis. RESULTS: Participants described experiencing unimaginable, agonising, continuous, inescapable and limitless pain which was almost impossible to describe; participants resorted to using analogy and personification as a way to overcome this difficulty. Participants spoke about a process where, ultimately, they felt obliged to accept their illness as it would never be cured; but were able to appreciate life and recognize positive life lessons as a result of living with SCD. CONCLUSIONS: This research indicates that therapeutic work around analogy can help individuals understand and express their pain and that current attempts to measure pain are unhelpful for SCD populations. Further research is needed across a wider SCD population to forward the findings of this qualitative study. STATEMENT OF CONTRIBUTION: What is already known on this subject? Sickle cell disease (SCD) has an impact on all aspects of a person's life (Edwards et al., 2005, International Journal of Behavioral Medicine, 12, 171). Strickland , Jackson, Gilead, McGuire, and Quarles (2001, Journal of the National Black Nurses' Association, 12, 36) suggest that one of the crucial factors in determining quality of life for those with SCD is the severity, timing and number of painful sickling episodes. Exacerbations of pain are also cited as explanation for the majority of medical contacts for people with SCD (McClish et al., 2009, Pain, 145, 246). The majority of research focuses on the consequences of pain in terms of handicap, and its impact on emotional well-being, relationships and the need for medication/hospital treatment (Booker et al., 2006, Chronic Illness, 2, 39; Weisberg et al., 2013, Journal of Hospital Medicine, 8, 42) rather than how SCD patients experience and understand their pain. However, the actual nature of pain experience in SCD is poorly understood and sub-optimally managed (Booker et al., 2006; Taylor et al., 2010, Journal of Pain and Symptom Management, 40, 416). What does this study add? The experience of SCD pain is indescribable without the use of analogy, as it is unbearable, agonising, constant, inescapable and without limit. Difficulty describing pain creates a perception of being misunderstood or minimized by professionals. Personification of pain is often employed by patients to attempt to form a relationship with pain. Current pain measures used in clinical practice are inadequate at capturing the acute and chronic SCD pain experience.


Asunto(s)
Anemia de Células Falciformes/complicaciones , Anemia de Células Falciformes/psicología , Actitud Frente a la Salud , Dolor Crónico/etiología , Dolor Crónico/psicología , Investigación Cualitativa , Adulto , Anemia de Células Falciformes/fisiopatología , Enfermedad Crónica , Dolor Crónico/fisiopatología , Femenino , Humanos , Entrevistas como Asunto , Masculino , Persona de Mediana Edad , Calidad de Vida/psicología , Adulto Joven
19.
Gastrointest Endosc ; 80(6): 1113-23, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25028274

RESUMEN

BACKGROUND: There are few data comparing U.S. Food and Drug Administration-approved low-volume bowel preparations for colonoscopy. OBJECTIVE: To compare oral sulfate solution (OSS) with sodium picosulfate plus magnesium citrate (SP+MC) for bowel cleansing efficacy. DESIGN: Single-blind, randomized, controlled trial. SETTING: Ten U.S. centers. PATIENTS: Outpatients undergoing colonoscopy for routine indications. INTERVENTIONS: Patients were randomized to undergo bowel preparation with OSS or SP+MC. Both preparations were given in split doses. MAIN OUTCOME MEASUREMENTS: Cleansing efficacy on a 4-point scale from excellent (4) to poor (1). RESULTS: Among 338 randomized patients who took preparation, OSS resulted in a higher rate of successful (excellent or good) preparation (94.7% vs 85.7%; P = .006) and more excellent preparations (54% vs 26%; P < .001) compared with SP+MC. There was no difference between OSS and SP+MC in treatment-emergent adverse events. SP+MC had better scores for nausea, but the differences were small. LIMITATIONS: The preparation grading scale has been used in previous studies and has regulatory acceptance but has not been formally validated. CONCLUSION: The U.S. Food and Drug Administration-approved split-dose regimen of OSS provides superior bowel cleansing compared with the approved split-dose regimen of SP+MC. ( CLINICAL TRIAL REGISTRATION NUMBER: NCT01786629.).


Asunto(s)
Catárticos/uso terapéutico , Citratos/uso terapéutico , Ácido Cítrico/uso terapéutico , Colonoscopía/métodos , Sulfato de Magnesio/uso terapéutico , Compuestos Organometálicos/uso terapéutico , Picolinas/uso terapéutico , Sulfatos/uso terapéutico , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Método Simple Ciego
20.
Epilepsy Behav ; 37: 110-5, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-25010325

RESUMEN

BACKGROUND: Despite the long history of psychogenic nonepileptic seizures (PNES), relatively little is known about the mechanisms that cause and maintain this condition. Emerging research evidence suggests that patients with PNES might have difficulties in regulating their emotions. However, much remains to be learned about the nature of these difficulties and the emotional responses of individuals with PNES. This study aimed to gain a detailed understanding of emotion regulation processes in patients with PNES by examining differences between patients with PNES and a healthy control group with regard to intensity of emotional reactions, understanding of one's emotional experience, beliefs about emotions, and managing emotions by controlling emotional expression. METHOD: A cross-sectional design was used to compare the group with PNES (n=56) and the healthy control group (n=88) on a range of self-report measures. RESULTS: Participants with a diagnosis of PNES reported significantly poorer understanding of their emotions, more negative beliefs about emotions, and a greater tendency to control emotional expression compared to the control group. While intensity of emotions did not discriminate between the groups, poor understanding and negative beliefs about emotions were found to be significant predictors of PNES, even after controlling for age, education level, and emotional distress. Furthermore, the presence of some emotion regulation difficulties was associated with self-reported seizure severity. CONCLUSIONS: The results of this study are largely consistent with previous literature and provide evidence for difficulties in emotion regulation in patients with PNES. However, this research goes further in bringing together different aspects of emotion regulation, including beliefs about emotions, which have not been examined before. As far as it is known, this is the first study to suggest that levels of alexithymia in a population with PNES are positively associated with self-reported seizure severity. The findings suggest a need for tailored psychological therapies addressing specific emotion regulation difficulties in individuals with PNES.


Asunto(s)
Emociones , Convulsiones/psicología , Adulto , Afecto , Síntomas Afectivos/psicología , Factores de Edad , Ansiedad/etiología , Ansiedad/psicología , Estudios Transversales , Cultura , Depresión/etiología , Depresión/psicología , Escolaridad , Femenino , Humanos , Masculino , Pruebas Neuropsicológicas
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