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1.
JAMA Health Forum ; 4(12): e234583, 2023 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-38127588

RESUMO

Importance: There is growing interest in expanding integrated models, in which 1 insurer manages Medicare and Medicaid spending for dually eligible individuals. Fully integrated dual-eligible special needs plans (FIDE-SNPs) are one of the largest integrated models, but evidence about their performance is limited. Objective: To evaluate changes in care associated with integrating Medicare and Medicaid coverage in a FIDE-SNP in Pennsylvania. Design, Setting, and Participants: This cohort study using a difference-in-differences analysis compared changes in care between 2 cohorts of dual-eligible individuals: (1) an integration cohort composed of Medicare Dual Eligible Special Needs Plan enrollees who joined a companion Medicaid plan following a 2018 state reform mandating Medicaid managed care (leading to integration), and (2) a comparison cohort with nonintegrated coverage before and after the start of Medicaid managed care. Analyses were conducted between February 2022 and June 2023. Main Outcomes and Measures: Analyses examined outcomes in 4 domains: use of home- and community-based services (HCBS), care management and coordination, hospital stays and postacute care, and long-term nursing home stays. Results: The study included 7967 individuals in the integration cohort and 3832 individuals in the comparison cohort. In the integration cohort, the mean (SD) age at baseline was 63.3 (14.7) years, and 5268 individuals (66.1%) were female and 2699 (33.9%) were male. In the comparison cohort, the mean (SD) age at baseline was 64.8 (18.6) years, and 2341 individuals (61.1%) were female and 1491 (38.9%) were male. At baseline, integration cohort members received a mean (SD) of 2.83 (8.70) days of HCBS per month and 3.34 (3.56) medications for chronic conditions per month, and the proportion with a follow-up outpatient visit after a hospital stay was 0.47. From baseline through 3 years after integration, HCBS use increased differentially in the integration vs comparison cohorts by 0.61 days/person-month (95% CI, 0.28-0.94; P < .001). However, integration was not associated with changes in care management and coordination, including medication use for chronic conditions (-0.02 fills/person-month; 95% CI, -0.10 to 0.06; P = .65) or follow-up outpatient care after a hospital stay (-0.01 visits/hospital stay; 95% CI, -0.04 to 0.03; P = .61). Hospital stays did not change differentially between the cohorts. Unmeasured factors contributing to differential mortality limited the ability to identify changes in long-term nursing home stays associated with integration. Conclusions and Relevance: In this cohort study with a difference-in-differences analysis of 2 cohorts of individuals dually eligible for Medicare and Medicaid, integration was associated with greater HCBS use but not with other changes in care patterns. The findings highlight opportunities to strengthen how integrated programs manage care and a need to further evaluate their performance.


Assuntos
Medicaid , Medicare , Idoso , Humanos , Masculino , Feminino , Estados Unidos , Estudos de Coortes , Tempo de Internação , Doença Crônica
3.
J Clin Med Res ; 14(7): 282-286, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35974803

RESUMO

A case of a negative outcome following systemic alteplase administration prior to extracorporeal membrane oxygenation (ECMO) in a kidney transplant patient with cardiac arrest is reported. A patient status-post kidney transplantation was admitted to the surgical intensive care unit (ICU) and experienced cardiac arrest after developing sudden-onset chest pain and shortness of breath. During cardiopulmonary resuscitation, alteplase 50 mg was administered intravenous push for suspected pulmonary embolism (PE) before the patient was evaluated for and started on veno-arterial ECMO. Within several hours, cardiopulmonary resuscitation needed to be reinitiated. Ultimately, the decision was made to cede further resuscitation efforts due to futility. A post-mortem examination included an immediate cause of death of acute myocardial infarction with extensive retroperitoneal hemorrhage. The role of ECMO is emerging in cardiac arrest, and should be considered as a management option before the administration of systemic thrombolysis in patients with increased bleeding risk.

4.
Mol Plant ; 15(8): 1300-1309, 2022 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-35754174

RESUMO

There are many challenges facing the development of high-yielding, nutritious crops for future environments. One limiting factor is generation time, which prolongs research and plant breeding timelines. Recent advances in speed breeding protocols have dramatically reduced generation time for many short-day and long-day species by optimizing light and temperature conditions during plant growth. However, winter crops with a vernalization requirement still require up to 6-10 weeks in low-temperature conditions before the transition to reproductive development. Here, we tested a suite of environmental conditions and protocols to investigate whether the vernalization process can be accelerated. We identified a vernalization method consisting of exposing seeds at the soil surface to an extended photoperiod of 22 h day:2 h night at 10°C with transfer to speed breeding conditions that dramatically reduces generation time in both winter wheat (Triticum aestivum) and winter barley (Hordeum vulgare). Implementation of the speed vernalization protocol followed by speed breeding allowed the completion of up to five generations per year for winter wheat or barley, whereas only two generations can be typically completed under standard vernalization and plant growth conditions. The speed vernalization protocol developed in this study has great potential to accelerate biological research and breeding outcomes for winter crops.


Assuntos
Grão Comestível , Hordeum , Produtos Agrícolas/genética , Flores , Regulação da Expressão Gênica de Plantas , Fotoperíodo , Melhoramento Vegetal , Triticum/genética
5.
Crit Care Explor ; 4(2): e0633, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35187497

RESUMO

The response of ICU patients to continuously infused ketamine when it is used for analgesia and/or sedation remains poorly established. OBJECTIVES: To describe continuous infusion (CI) ketamine use in critically ill patients, including indications, dose and duration, adverse effects, patient outcomes, time in goal pain/sedation score range, exposure to analgesics/sedatives, and delirium. DESIGN SETTING AND PARTICIPANTS: Multicenter, retrospective, observational study from twenty-five diverse institutions in the United States. Patients receiving CI ketamine between January 2014 and December 2017. MAIN OUTCOMES AND MEASURES: Chart review evaluating institutional and patient demographics, ketamine indication, dose, administration, and adverse effects. Pain/sedation scores, cumulative doses of sedatives and analgesics, and delirium screenings in the 24 hours prior to ketamine were compared with those at 0-24 hours and 25-48 hours after. RESULTS: A total of 390 patients were included (median age, 54.5 yr; interquartile range, 39-65 yr; 61% males). Primary ICU types were medical (35.3%), surgical (23.3%), and trauma (17.7%). Most common indications were analgesia/sedation (n = 357, 91.5%). Starting doses were 0.2 mg/kg/hr (0.1-0.5 mg/kg/hr) and continued for 1.6 days (0.6-2.9 d). Hemodynamics in the first 4 hours after ketamine were variable (hypertension 24.0%, hypotension 23.5%, tachycardia 19.5%, bradycardia 2.3%); other adverse effects were minimal. Compared with 24 hours prior, there was a significant increase in proportion of time spent within goal pain score after ketamine initiation (24 hr prior: 68.9% [66.7-72.6%], 0-24 hr: 78.6% [74.3-82.5%], 25-48 hr: 80.3% [74.6-84.3%]; p < 0.001) and time spent within goal sedation score (24 hr prior: 57.1% [52.5-60.0%], 0-24 hr: 64.1% [60.7-67.2%], 25-48 hr: 68.9% [65.5-79.5%]; p < 0.001). There was also a significant reduction in IV morphine (mg) equivalents (24 hr prior: 120 [25-400], 0-24 hr: 118 [10-363], 25-48 hr: 80 [5-328]; p < 0.005), midazolam (mg) equivalents (24 hr prior: 11 [4-67], 0-24 hr: 6 [0-68], 25-48 hr: 3 [0-57]; p < 0.001), propofol (mg) (24 hr prior: 942 [223-4,018], 0-24 hr: 160 [0-2,776], 25-48 hr: 0 [0-1,859]; p < 0.001), and dexmedetomidine (µg) (24 hr prior: 1,025 [276-1,925], 0-24 hr: 285 [0-1,283], 25-48 hr: 0 [0-826]; p < 0.001). There was no difference in proportion of time spent positive for delirium (24 hr prior: 43.0% [17.0-47.0%], 0-24 hr: 39.5% [27.0-43.8%], 25-48 hr: 0% [0-43.7%]; p = 0.233). Limitations to these data include lack of a comparator group, potential for confounders and selection bias, and varying pain and sedation practices that may have changed since completion of the study. CONCLUSIONS AND RELEVANCE: There is variability in the use of CI ketamine. Hemodynamic instability was the most common adverse effect. In the 48 hours after ketamine initiation compared with the 24 hours prior, proportion of time spent in goal pain/sedation score range increased and exposure to other analgesics/sedatives decreased.

6.
Ann Pharmacother ; 56(9): 1023-1029, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-34986664

RESUMO

BACKGROUND: Current evidence for dexmedetomidine-suspected fever (DSF) is limited. Lack of recognition may lead to costly or potentially harmful interventions for critically ill patients. OBJECTIVE: The primary objective was to characterize escalations of care related to DSF. Secondary objectives were to describe the incidence, severity, and consequences associated with DSF. METHODS: A retrospective review was conducted in critically ill adults who developed fever ≥39°C within 12 h from initiation of dexmedetomidine, with resolution of fever to <39°C within 12 h after discontinuation. The primary outcome was percentage of patients who received an escalation of care due to fever. Secondary outcomes included the percentage of patients who developed a multidrug-resistant organism or Clostridium difficile infection. RESULTS: Eighteen of 3943 patients screened in 4099 encounters met criteria for DSF (0.4%). The majority were white (83.3%), male (66.7%), and underwent cardiac surgery (61.1%). Median (interquartile range [IQR]) time to fever onset and resolution were 5.5 (3.6-7.6) and 1.3 (1.0-2.9) h. Nine patients (50%) underwent infectious workup including antimicrobial initiation (n = 1, 5.6%), broadening of antimicrobials (n = 4, 22.2%), or culture collection (n = 9, 50%). Eleven patients (61.1%) underwent attempted temperature reduction. Twelve patients (66.7%) underwent diagnostic imaging. Incidence of multidrug-resistant organism and C. difficile infection were low (11.1 and 16.7% of fever patients, respectively). CONCLUSION AND RELEVANCE: Incidence of DSF was low and more common in cardiac surgery patients. Unrecognized DSF led to an escalation of care in most patients. Dexmedetomidine exposure should be considered as a potential cause of fever in critically ill adults.


Assuntos
Clostridioides difficile , Dexmedetomidina , Adulto , Estado Terminal , Dexmedetomidina/efeitos adversos , Febre/epidemiologia , Humanos , Hipnóticos e Sedativos , Masculino , Estudos Retrospectivos
7.
Neurocase ; 28(6): 483-487, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36794351

RESUMO

A 66-year-old left-handed male was admitted to our acute inpatient rehabilitation (AIR) unit following a resection of the right occipito-parietal glioblastoma. He presented with symptoms of horizontal oculomotor apraxia, contralateral optic ataxia and left homonymous hemianopsia. We diagnosed this patient with partial Bálint's syndrome (BS)- oculomotor apraxia, optic ataxia but not simultanagnosia. BS is typically caused by bilateral posterior parietal lesions, but we here describe a unique case due toresection of a right intracranial tumor. A short AIR stay allowed our patient to learn how to compensate for visuomotor and visuospatial deficits, and improved his quality of life significantly.


Assuntos
Agnosia , Apraxias , Encefalopatias , Glioblastoma , Humanos , Masculino , Idoso , Agnosia/etiologia , Hemianopsia/complicações , Glioblastoma/complicações , Qualidade de Vida , Ataxia/etiologia , Apraxias/etiologia , Encefalopatias/complicações
8.
Foot Ankle Spec ; 15(2): 113-118, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32723089

RESUMO

Background: The results supporting Cartiva, a synthetic cartilage implant (Wright Medical) in hallux rigidus have come from limited institutions creating observational bias. Complications experienced in community centers are not routinely included in the published literature. To look at a broader range of potential complications, we reviewed the United States Food and Drug Administration's (FDA) voluntary device database and compared that data with published literature. Methods: The Manufacturer and User Facility Device Experience (MAUDE) database of the FDA was retrospectively reviewed between July 2016 and October 2019 using the product code: PNW, assigned for Cartiva. Results: A total of 49 events have been reported and implant subsidence was the most common with 16 reports. Others include fragmentation (9), infection (4), bone erosion (3), foreign body reaction (1) and unspecified (16). Thirty-five events mentioned further surgeries at a mean interval of 4.75 months. Conclusions: The analysis of the MAUDE database disclosed certain device-related dysfunctions that have been underreported in the published literature. Because of the voluntary nature of reporting, the true incidence of each complication is unknown with this data representing a baseline. The MAUDE database could be further strengthened by a more robust reporting mechanism or mandatory reporting of device-related complications.Levels of Evidence: Level IV: Case series from large database analysis.


Assuntos
Hallux Rigidus , Hemiartroplastia , Ossos do Metatarso , Bases de Dados Factuais , Hallux Rigidus/cirurgia , Hemiartroplastia/efeitos adversos , Humanos , Estudos Retrospectivos , Estados Unidos/epidemiologia , United States Food and Drug Administration
9.
Int Orthop ; 45(9): 2307-2312, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-33575857

RESUMO

BACKGROUND: The published outcomes of total ankle replacement (TAR) implants came from limited institutions creating observational bias. For broader perspective, we queried the Food and Drug Administration's (FDA) Manufacturer and User Facility Device Experience (MAUDE) voluntary database to explore complications reported outside published literature. METHODS: The database was reviewed retrospectively between November 2011 and April 2019 using two product codes assigned to six TAR devices. RESULTS: Among 648 relevant reports available in the database, common complications were aseptic loosening (19.3%), infection (18.2%), and alignment/mechanical issues (16.5%). Others included instrument/instrumentation complications, impingement, polyethylene problems, fractures, avascular necrosis of talus (AVN), and packaging issues. CONCLUSION: MAUDE database revealed various patterns of device-related malfunctions that have been under-reported in published data. Despite inconsistency in the available reports, it provided opportunities for improvements in quality control, device design, and ultimately patient safety. Database would be further strengthened by more robust reporting mechanism or mandatory reporting of device-related complications.


Assuntos
Artroplastia de Substituição do Tornozelo , Artroplastia de Substituição do Tornozelo/efeitos adversos , Bases de Dados Factuais , Humanos , Estudos Retrospectivos , Estados Unidos/epidemiologia , United States Food and Drug Administration
11.
J Biomech ; 109: 109925, 2020 08 26.
Artigo em Inglês | MEDLINE | ID: mdl-32807329

RESUMO

Achilles tendon ruptures are common injuries that lead to functional deficits in two-thirds of patients. Progressively loading the healing tendon has been associated with superior outcomes, but the loading profiles that patients experience throughout rehabilitation have not yet been established. In this study, we developed and calibrated an instrumented immobilizing boot paradigm that is aimed at longitudinally quantifying patient loading biomechanics to develop personalized rehabilitation protocols. We used a 3-part instrumented insole to quantify the ankle loads generated by the Achilles tendon and secured a load cell inline with the posterior strut of the immobilizing boot to quantify boot loading. We then collected gait data from five healthy young adults to demonstrate the validity of this instrumented immobilizing boot paradigm to assess Achilles tendon loading during ambulation. We developed a simple calibration procedure to improve the measurement fidelity of the instrumented insole needed to quantify Achilles tendon loading while ambulating with an immobilizing boot. By assessing Achilles tendon loading with the ankle constrained to 0 degrees and 30 degrees plantar flexion, we confirmed that walking with the foot supported in plantar flexion decreased Achilles tendon loading by 60% (P < 0.001). This instrumented immobilizing boot paradigm leverages commercially available sensors and logs data using a small microcontroller secured to the boot and a handheld device, making our paradigm capable of continuously monitoring biomechanical loading outside of the lab or clinic.


Assuntos
Tendão do Calcâneo , Traumatismos dos Tendões , , Marcha , Humanos , Ruptura , Caminhada , Adulto Jovem
12.
SAGE Open Med ; 8: 2050312120930898, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32587690

RESUMO

INTRODUCTION: Clostridioides (formerly Clostridium) difficile infection recurrence in patients re-exposed to antibiotics for treatment of a non-Clostridioides difficile infection is high at approximately 33%. Low-dose per os vancomycin (e.g. 125 mg q12 h) or metronidazole (e.g. 500 mg intravenous/per osq8 h) may help prevent recurrences, but study of secondary prophylaxis in critically ill patients is needed. OBJECTIVES: To determine whether critically ill adults receiving low-dose per os vancomycin for secondary Clostridioides difficile infection prophylaxis have fewer recurrences of Clostridioides difficile infection in 90 days compared with patients receiving metronidazole for secondary Clostridioides difficile infection prophylaxis or control (no secondary prophylaxis). METHODS: This was a retrospective, two-center, observational study in a large academic medical center and affiliated community hospital. Included patients had a history of Clostridioides difficile infection within 1 year of receiving antibiotics for clinical care. We compared patients receiving secondary prophylaxis with vancomycin or metronidazole and control patients; in addition, an unplanned fourth group (vancomycin/metronidazole combination) was identified and analyzed. The primary outcome was Clostridioides difficile infection recurrence within 90 days of a course of broad-spectrum antibiotic therapy. Fisher's exact, analysis of variance, and Kruskal-Wallis tests were used to compare Clostridioides difficile infection recurrence with prophylaxis group and additional contributing factors. RESULTS: Eighty-two patients were included: 38 control (46.3%), 20 metronidazole (24.4%), 17 vancomycin (20.7%), and 7 combination (8.5%). Ten of 82 patients (12.2%) had at least one Clostridioides difficile infection recurrence; 8/38 patients in the control group (21.1%), 1/7 patients in the combination group (14.3%), 1/17 patients in the per os vancomycin group (5.9%), and 0/20 in the metronidazole group (0%; p = 0.073). As a post hoc secondary analysis, the three prophylaxis groups were coalesced into one group and compared with control (4.5% vs 21%; p = 0.039). Additional factors (e.g. age, obesity, immunosuppression, acid suppression) were not significantly associated with Clostridioides difficile infection recurrence or with prophylaxis group. CONCLUSION: There was no difference in Clostridioides difficile infection recurrence between prophylaxis groups, however, given the low recurrence rate, prospective evaluation with a larger sample of critically ill patients is necessary.

13.
J Biomech ; 105: 109784, 2020 05 22.
Artigo em Inglês | MEDLINE | ID: mdl-32278525

RESUMO

Achilles tendon disorders are among the most difficult sports-related injuries to predict with current diagnostic tools. The purpose of this study was to identify a clinically useful marker for early tendon damage. We hypothesized that alterations in mean echogenicity are linked with changes in vitro tendon mechanics. To test our hypothesis, we harvested Achilles tendons from 10 fresh-frozen cadaveric feet and cyclically fatigued them using a universal test frame while we continuously acquired ultrasound images. Throughout this fatigue protocol, we applied 2 stress tests every 500 loading cycles to quantify changes in ultrasound imaging echogenicity. We continued this fatigue protocol until each tendon either failed completely or survived 150,000 cycles. Tendons that failed during the fatigue loading (6/10) underwent greater changes in mean echogenicity compared to tendons that did not fail (P = 0.031). These tendons that failed during fatigue loading demonstrated greater changes in mean echogenicity that surpassed 1.0%; whereas survivor tendons exhibited less than 0.5% changes in mean echogenicity. We found that changes in mean echogenicity measured with ultrasound increased proportionally with increased tendon damage. The magnitude of these changes was relatively small (<1.5% change in mean echogenicity) but may be an effective predictor of tendon failure. Mean echogenicity is a promising marker for quantifying fatigue damage in cadaveric Achilles tendons during a stress test. Although these changes cannot be detected with the naked eye, computer-based predictive models may effectively assess risk of tendon damage in physically active adults.


Assuntos
Tendão do Calcâneo , Tendão do Calcâneo/diagnóstico por imagem , Adulto , Cadáver , Humanos , Fadiga Muscular , Ultrassonografia
14.
Clin Exp Nephrol ; 24(6): 541-546, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32152833

RESUMO

OBJECTIVES: We sought to test the strength of correlation between predicted and observed systemic acid-base status based on the Stewart model equations during continuous infusion (CI) furosemide therapy. DESIGN, SETTING AND PARTICIPANTS: This was a prospective, single-center, observational study conducted in the Surgical ICU of a large academic medical center. Ten critically ill patients who received CI furosemide were included. MAIN OUTCOMES AND MEASURES: The primary purpose was to characterize the relationship between changes in serum electrolyte and acid-base status and the excretion of electrolytes in the urine during infusion of CI furosemide in critically ill patients. As a secondary endpoint, we sought to evaluate the predictive application of the Stewart model. Over 72-h, intake and output volumes, electrolyte content of fluids administered, plasma and urine electrolytes, urine pH, and venous blood gases were collected. Predicted and observed changes in acid-based status were compared for each day of diuretic therapy using Spearman's correlation coefficient. RESULTS: The mean (SD) strong ion difference (SID) increased from 45.2 (3.2) at baseline to 49.6 (4.0) after 72 h of continuous infusion furosemide. At Day 1, the mean SID (observed) (SD) was 47.5 (3.5) and the predicted SID was 49.5 (5.8). Day 1 observed plasma SID was positively correlated with the predicted SID (rs = 0.80, p = 0.01). By Days 2 and 3, the correlations of observed and predicted SID were no longer statistically significant. CONCLUSIONS AND RELEVANCE: Using the Stewart model, increases in SID as an indicator of metabolic alkalosis due to the chloruretic effects of furosemide were observed. Predicted and observed SID correlated well over the first 24 h of treatment.


Assuntos
Equilíbrio Ácido-Base/efeitos dos fármacos , Diuréticos/farmacologia , Furosemida/farmacologia , Íons/sangue , Modelos Biológicos , Idoso , Idoso de 80 Anos ou mais , Alcalose/induzido quimicamente , Cuidados Críticos , Estado Terminal , Diuréticos/administração & dosagem , Diuréticos/efeitos adversos , Feminino , Furosemida/administração & dosagem , Furosemida/efeitos adversos , Humanos , Infusões Intravenosas , Íons/urina , Masculino , Cuidados Pós-Operatórios , Estudos Prospectivos
15.
J Appl Physiol (1985) ; 127(4): 1005-1011, 2019 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-31589091

RESUMO

Deficits in plantarflexor kinetics are associated with poor outcomes in patients following Achilles tendon rupture. In this longitudinal study, we analyzed the fascicle length and pennation angle of the medial gastrocnemius muscle and the length of the Achilles tendon using ultrasound imaging. To determine the relationship between muscle remodeling and deficits in plantarflexor kinetics measured at 14 wk after injury, we correlated the reduction in fascicle length and increase in pennation angle with peak torque measured during isometric and isokinetic plantarflexor contractions. We found that the medial gastrocnemius underwent an immediate change in structure, characterized by decreased length and increased pennation of the muscle fascicles. This decrease in fascicle length was coupled with an increase in tendon length. These changes in muscle-tendon structure persisted throughout the first 14 wk following rupture. Deficits in peak plantarflexor torque were moderately correlated with decreased fascicle length at 120 degrees per second (R2 = 0.424, P = 0.057) and strongly correlated with decreased fascicle length at 210 degrees per second (R2 = 0.737, P = 0.003). However, increases in pennation angle did not explain functional deficits. These findings suggest that muscle-tendon structure is detrimentally affected following Achilles tendon rupture. Plantarflexor power deficits are positively correlated with the magnitude of reductions in fascicle length. Preserving muscle structure following Achilles tendon rupture should be a clinical priority to maintain plantarflexor kinetics.NEW & NOTEWORTHY In our study, we found that when the Achilles tendon ruptures due to excessive biomechanical loading, the neighboring skeletal muscle undergoes rapid changes in its configuration. The magnitude of this muscle remodeling explains the amount of ankle power loss demonstrated by these patients once their Achilles tendons are fully healed. These findings highlight the interconnected relationship between muscle and tendon. Isolated injuries to the tendon stimulate detrimental changes to the muscle, thereby limiting joint-level function.


Assuntos
Tendão do Calcâneo/fisiopatologia , Músculo Esquelético/fisiopatologia , Traumatismos dos Tendões/fisiopatologia , Adulto , Tornozelo/fisiopatologia , Articulação do Tornozelo/fisiopatologia , Contratura/fisiopatologia , Humanos , Cinética , Estudos Longitudinais , Masculino , Movimento/fisiologia , Torque , Ultrassonografia/métodos
16.
PeerJ ; 7: e6788, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31065459

RESUMO

The purpose of this study was to characterize the short-term effects of Achilles tendon ruptures on medial gastrocnemius. We hypothesized that the fascicles of the medial gastrocnemius muscle of the injured Achilles tendon would be shorter and more pennate immediately following the injury and would persist throughout 4 weeks post-injury. B-mode longitudinal ultrasound images of the medial gastrocnemius were acquired in 10 adults who suffered acute Achilles tendon ruptures and were treated non-operatively. Ultrasound images were acquired during the initial clinical visit following injury as well as 2 and 4 weeks following this initial clinical visit. Resting muscle structure was characterized by measuring fascicle length, pennation angle, muscle thickness, and muscle echo intensity in both the injured and contralateral (control) limbs. Fascicle length was 15% shorter (P < 0.001) and pennation angle was 21% greater (P < 0.001) in the injured muscle compared to the uninjured (control) muscle at the presentation of injury (week 0). These differences in fascicle length persisted through 4 weeks after injury (P < 0.002) and pennation angle returned to pre-injury levels. Muscle thickness changes were not detected at any of the post-injury visits (difference < 4%, P > 0.026). Echo intensity of the injured limb was 8% lower at the presentation of the injury but was not different compared to the contralateral muscle at 2 and 4 weeks post-injury. Our results suggest that Achilles tendon ruptures elicit rapid changes in the configuration of the medial gastrocnemius, which may explain long-term functional deficits.

18.
Sleep Med ; 56: 219-223, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30522875

RESUMO

OBJECTIVE: Suvorexant is an orexin receptor antagonist that is approved in the US, Japan and Australia for the treatment of insomnia. Using outcomes from the Insomnia Severity Index (ISI) in the core registration studies, we explored suvorexant effects on sleep problems and their impact on daytime function. METHODS: Data were pooled from two similar Phase 3, randomized, double-blind, placebo-controlled, parallel-group, three-month trials in elderly (≥65 years) and non-elderly (18-64 years old) insomnia patients. Age-adjusted (non-elderly/elderly) dose-regimes of 40/30 mg and 20/15 mg were evaluated. The ISI, a 7-item self-rated questionnaire with each item rated on 0-4 scale (higher score corresponds to increasing severity), was administered to patients as an exploratory assessment in both studies at baseline and one and three months after randomization. RESULTS: The analysis included 1824 patients. Suvorexant improved change-from-baseline ISI total scores to a greater extent than placebo (Month three: 20/15 mg = -6.2, 40/30 mg = -6.7, placebo = -4.9, p-values for both active arms vs. placebo <0.001) and resulted in a greater proportion of responders than placebo using a variety of definitions (eg, ≥6-point improvement from baseline at Month three: 20/15 mg = 55.5%, 40/30 mg = 54.9%, placebo = 42.2%, p-values for both active arms vs. placebo <0.001). Additionally, the "impact of insomnia" component, which assesses the impact of insomnia on daytime function/quality-of-life, was improved to a greater extent by suvorexant than placebo. CONCLUSIONS: Suvorexant 20/15 mg and 40/30 mg improved sleep to a greater extent than placebo as assessed by the ISI in patients with insomnia. Improvement in sleep onset/maintenance as well as a reduction of the impact of sleep problems on daytime function contributed to the overall improvement observed in ISI total score. CLINICALTRIALS. GOV IDENTIFIER: NCT01097616, NCT01097629.


Assuntos
Azepinas/farmacologia , Antagonistas dos Receptores de Orexina/farmacologia , Avaliação de Resultados em Cuidados de Saúde , Distúrbios do Início e da Manutenção do Sono/tratamento farmacológico , Triazóis/farmacologia , Adolescente , Adulto , Idoso , Azepinas/administração & dosagem , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Antagonistas dos Receptores de Orexina/administração & dosagem , Índice de Gravidade de Doença , Triazóis/administração & dosagem , Adulto Jovem
19.
Rand Health Q ; 8(2): 9, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30323992

RESUMO

Motor vehicle crashes account for a large number of deaths and injuries. In the United States, in 2015, more than 35,000 people were killed and approximately 2.44 million were injured in motor vehicle crashes. In 2010, the economic costs associated with motor vehicle crashes in the United States were substantial, estimated to be $242 billion. Fortunately, a wide range of evidence-based interventions, including both policies and programs, can help prevent motor vehicle-related injuries and deaths. In 2014, RAND researchers developed an online tool, the Motor Vehicle Prioritizing Interventions and Cost Calculator for States (MV PICCS), to help determine the costs and effectiveness of various interventions to reduce injuries and deaths from motor vehicle crashes and what interventions together generate the largest reductions in injuries and deaths for a given implementation budget. A 2015 update added two new interventions and produced a series of reports about allocating traffic safety funds. The 2017 update, MV PICCS 3.0, determined whether to add new interventions, updated information on the interventions' effectiveness and costs, and redesigned the tool's user interface to be more user-friendly.

20.
Clin Neurophysiol ; 129(11): 2219-2227, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-30212805

RESUMO

OBJECTIVE: To quantify the burden of epileptiform abnormalities (EAs) including seizures, periodic and rhythmic activity, and sporadic discharges in patients with aneurysmal subarachnoid hemorrhage (aSAH), and assess the effect of EA burden and treatment on outcomes. METHODS: Retrospective analysis of 136 high-grade aSAH patients. EAs were defined using the American Clinical Neurophysiology Society nomenclature. Burden was defined as prevalence of <1%, 1-9%, 10-49%, 50-89%, and >90% for each 18-24 hour epoch. Our outcome measure was 3-month Glasgow Outcome Score. RESULTS: 47.8% patients had EAs. After adjusting for clinical covariates EA burden on first day of recording and maximum daily burden were associated with worse outcomes. Patients with higher EA burden were more likely to be treated with anti-epileptic drugs (AEDs) beyond the standard prophylactic protocol. There was no difference in outcomes between patients continued on AEDs beyond standard prophylaxis compared to those who were not. CONCLUSIONS: Higher burden of EAs in aSAH independently predicts worse outcome. Although nearly half of these patients received treatment, our data suggest current AED management practices may not influence outcome. SIGNIFICANCE: EA burden predicts worse outcomes and may serve as a target for prospective interventional controlled studies to directly assess the impact of AEDs, and create evidence-based treatment protocols.


Assuntos
Convulsões/diagnóstico , Hemorragia Subaracnóidea/diagnóstico , Idoso , Anticonvulsivantes/efeitos adversos , Anticonvulsivantes/uso terapêutico , Eletroencefalografia , Feminino , Escala de Resultado de Glasgow , Humanos , Masculino , Pessoa de Meia-Idade , Convulsões/tratamento farmacológico , Convulsões/etiologia , Hemorragia Subaracnóidea/complicações , Hemorragia Subaracnóidea/epidemiologia
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