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1.
Nurs Health Sci ; 2019 Dec 03.
Artigo em Inglês | MEDLINE | ID: mdl-31793162

RESUMO

The aim of this study was to compare the learning effects of debriefing methods used in the simulation of prematurity care by measuring: (i) academic self-efficacy; (ii) confidence in performance; (iii) self-assessed communication skills; and (iv) satisfaction. We employed a quasi-experimental design with three experimental groups that experienced instructor-directed, self-directed, and video-assisted, self-directed debriefing, respectively. Participants were 146 senior nursing students from three nursing schools. To compare learning effects, the same developed scenario for prematurity care was applied to all three groups. Significant differences were observed in the mean scores for the study variables among the three groups. The post-hoc analysis showed that the video-assisted, self-directed debriefing group obtained the highest mean score difference for confidence in performance, self-assessed communication skills, and satisfaction with the debriefing method. Thus, video-assisted, self-directed debriefing could be the most effective debriefing method for students.

2.
J Vestib Res ; 2019 Nov 27.
Artigo em Inglês | MEDLINE | ID: mdl-31796719

RESUMO

Accumulating evidences show that the vestibular system contributes to cognitive function, including visuospatial ability, memory, and attention. Conversely, cognitive processes appear to affect the vestibular system. Based on the assumption that cognitive impairment correlates to increased perceived dizziness, we recruited 308 adults with cognitive decline from neurodegenerative disorders and administered neuropsychological tests and the Dizziness Handicap Inventory. Global cognitive measures did not correlate with increased dizziness, whereas attentional and visuospatial cognitive ability was correlated with scores of the Dizziness Handicap Inventory. Furthermore, patients with both cognitive impairment and postural instability experienced notably worse dizziness than those without postural instability, suggesting that postural instability is an important determinant of dizziness.

3.
Sci Rep ; 9(1): 16255, 2019 Nov 07.
Artigo em Inglês | MEDLINE | ID: mdl-31700018

RESUMO

We investigated gait performance utilizing a quantitative gait analysis for 2 groups: (1) idiopathic normal-pressure hydrocephalus (INPH) patients who had a positive response to the cerebrospinal fluid tap test (CSFTT) and (2) healthy controls. The aims of the study were (1) to analyze the characteristics of gait features, (2) to characterize changes in gait parameters before and after the CSFTT, and (3) to determine whether there was any relationship between stride time and stride length variability and Frontal Assessment Battery (FAB) scores in INPH patients. Twenty-three INPH patients and 17 healthy controls were included in this study. Compared with healthy controls, the gait of INPH patients was characterized by lower velocity, shorter stride length, and more broad-based gait. Patients with INPH had a longer stance phase with increased double-limb support. Variability in stride time and stride length was increased in INPH patients. Stride time and stride length variability were correlated with FAB score. After the CSFTT, gait velocity, stride length, and step width significantly improved. There were significant decreases in stride time and stride length variability. These results suggest that the CSFTT for INPH patients might improve the so-called balance-related gait parameter (ie, step width) as well. Stride time and stride length variability also responded to the CSFTT. Association between FAB scores and both stride time and stride length variability suggests involvement of similar circuits producing gait variability and frontal lobe functions in INPH patients.

4.
Ann Thorac Surg ; 2019 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-31562839

RESUMO

BACKGROUND: Patients undergoing postinfarction ventricular septal defect (VSD) repair are at high risk for early morbidity and mortality, but little is known about subsequent clinical events. This study uses short-term clinical data from the Society of Thoracic Surgeons (STS) National Database linked with Medicare data to examine longer-term outcomes in these patients. METHODS: This was a retrospective review of the STS National Database to link with Medicare data all adults (≥65 years) who underwent VSD repair following a myocardial infarction between 2008-2012. The primary outcome was 1-year mortality. Risk factors for 1-year survival were modeled using a multivariable Cox regression. RESULTS: A total of 537 patients were identified using the STS database and medicare linkage. Median age was 74 years, and 277(52%) were men. 192(36%) were supported preoperatively with an intra-aortic balloon pump. Surgical status was emergent or salvage in 138(26%). 158(29%) died within 30-days and 207 (39%) patients died within 1-year. Among patients who survived to hospital discharge, 44% were discharged to a facility, and 172(32%) experienced at least one all-cause re-admission within 1-year. Unadjusted 1-year mortality rates were 13% for elective patients and 69% for emergency status (p<0.01). On multivariable analysis, emergency/salvage status, older age, and concomitant CABG were independently associated with worse 1-year survival. CONCLUSIONS: These data suggest the greatest mortality risk in this patient population occurs in the first 30-days. Emergency or salvage status strongly predicts 1-year mortality. Optimizing physiologic derangements prior to operative repair may be considered when possible in this subgroup of patients.

5.
Prog Brain Res ; 249: 227-234, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31325982

RESUMO

Acquired pendular nystagmus (APN) often occurs in association with the disorders affecting the visual system, such as multiple sclerosis (MS). The proposed mechanisms of APN in MS have been a delayed conduction of the visual information for ocular stabilization and unstable neural integrator for feedback controls. We determined the effects of visual inputs on the nystagmus intensity and the effects of saccades on phase shift of the nystagmus in a patient with monocular pendular nystagmus from MS. In this patient, (1) during binocular viewing in the light, the nystagmus was observed only in the eye with more severe visual loss, (2) the nystagmus disappeared in darkness, (3) monocular viewing with either eye markedly suppressed the nystagmus, (4) the nystagmus decreased when the visual inputs became less asymmetric between the eyes, and (5) saccades resulted in a phase shift of the nystagmus. From these results, we propose that the difference in the visual inputs between the eyes is responsible for monocular APN by disturbing visual integration and increasing instability of the feedback.

6.
Food Sci Biotechnol ; 28(4): 1225-1233, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31275723

RESUMO

Gochujang, a traditional Korean hot sauce, was prepared with a variety of antioxidant-rich supplements to improve its bioactive functions and preference by pungency-sensitive people. Among the tested ingredients, tomato paste exhibited the strongest antioxidant and neuroprotective activities when added as a supplement to traditional gochujang. Furthermore, oral administration of gochujang prepared with tomato paste to mice significantly improved cognitive function compared to original gochujang. As gochujang supplemented with tomato paste was found to contain an appreciable amount of lycopene with neuroprotective activity, it is most likely that the neuroprotective activity and cognitive improvement by the product was partially attributable to cis-lycopene, a highly bioavailable form converted from trans-lycopene during the manufacturing process of the product. However, a further study is required to verify the precise underlying mechanism of action.

7.
Can J Neurol Sci ; 46(4): 486-488, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31104641
8.
Am J Cardiol ; 123(10): 1628-1636, 2019 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-30846214

RESUMO

Systolic blood pressure (SBP) and its association with clinical outcomes in atrial fibrillation (AF) patients in community practice are poorly characterized. In patients with AF, we sought to (1) examine the prevalence of baseline uncontrolled hypertension and the overall change in SBP control, (2) identify predictors of uncontrolled SBP over 2 years of follow-up, and (3) determine the relation between SBP and clinical outcomes. We analyzed 10,132 patients with AF at 176 clinics in the ORBIT-AF registry between 2010 and 2014, classified as: (1) no history of hypertension; (2) controlled hypertension (baseline SBP <140 mm Hg); (3) and uncontrolled hypertension (baseline SBP >140 mm Hg). Predictors of SBP >140 mm Hg at baseline or in follow-up were identified with pooled logistic regression. Random effects Cox regression models were used to compare cardiovascular outcomes and major bleeding as a function of continuous, time-dependent SBP. Overall 8,383 (83%) of patients with AF had hypertension. Of these, 24.2% (n = 2032) had uncontrolled baseline SBP, with little change over 2 years. Predictors of elevated follow-up SBP included uncontrolled baseline SBP, females, previous percutaneous coronary intervention, and diabetes. For every 5 mm Hg increase in follow-up SBP, the adjusted risk of stroke or systemic embolism or transient ischemic attack (adjusted hazard ratio [aHR] 1.05, 95% confidence interval [CI] 1.01 to 1.08, p = 0.01), myocardial infarction (aHR 1.05, 95% CI 1.00 to 1.11, p = 0.04), and major bleeding (aHR 1.03, 95% CI 1.00 to 1.06, p = 0.04) increased modestly. In conclusion, in patients with AF, higher SBP was associated with increasing adverse events; therefore, more rigorous blood pressure control should be emphasized.

9.
Cerebellum ; 18(3): 333-339, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30610539

RESUMO

The mechanism of perverted vertical responses during horizontal head impulse tests (HITs) requires further elucidation. A 47-year-old woman with a Chiari malformation showed alternating skew deviation, downbeat nystagmus with an increasing slow phase velocity, impaired smooth pursuit, and upward ocular deviation during horizontal HITs and corrective downward saccades in the presence of normal bithermal caloric tests and intact tilt suppressions of the post-rotatory nystagmus. These findings suggest dysfunction of the inferior cerebellum including the tonsil, nodulus, and uvula. We propose that disruption of signals from the medial part of the vestibulocerebellum, which normally inhibits the lateral and anterior canal pathways, may elicit an upward misdirection of the eye velocity during rapid horizontal head rotation. Otherwise, the Chiari malformation may have directly affected the brainstem structures involved in the direction matrix of the vestibulo-ocular reflex.

10.
Eur J Nutr ; 58(1): 399-408, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29322314

RESUMO

PURPOSE: The aim of this study was to examine the associations between the risk of cognitive impairment and the serum levels of folate, vitamin B12, and homocysteine (Hcy). METHODS: Subjects were persons aged 60-79 years who participated in the Yangpyeong Cohort study between 2011 and 2012. Cognitive impairment and normal subjects consisted of 100 pairs of old adults matched by age, sex, and education levels. Cognitive function was evaluated with the Korean version of the Mini-Mental State Examination for Dementia Screening (MMSE-DS). Pearson's partial correlation coefficients and conditional multiple logistic regression analysis were applied to determine the associations between cognitive function and the serum levels of folate, vitamin B12, and Hcy. RESULTS: Compared with the matched normal group, the cognitive impairment group had higher proportions of folate deficiency (< 3 ng/mL) and hyperhomocysteinemia (≥ 15 µmol/L). Serum Hcy concentrations were inversely associated with serum folate (r = - 0.234, p = 0.001) and MMSE-DS score (r = - 0.150, p = 0.037) after adjusting for age, sex, and education. The high Hcy group showed a higher prevalence of cognitive impairment (4th vs. 1st quartile, OR 3.30, 95% CI 1.12-9.72, p for trend = 0.014) after adjusting for exercise. CONCLUSIONS: The present findings suggest a putative protective role of high serum folate and normal Hcy against cognitive impairment among older adults.


Assuntos
Disfunção Cognitiva/sangue , Disfunção Cognitiva/epidemiologia , Deficiência de Ácido Fólico/sangue , Deficiência de Ácido Fólico/epidemiologia , Homocisteína/sangue , Idoso , Causalidade , Estudos de Coortes , Comorbidade , Feminino , Ácido Fólico/sangue , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Prevalência , República da Coreia/epidemiologia , Vitamina B 12/sangue
11.
Acta Neurol Belg ; 119(1): 37-45, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29129037

RESUMO

The middle cerebellar peduncle (MCP) is a major conduit for cortico-ponto-cerebellar fibers that convey information related to eye movements. This study aims to elucidate eye movement abnormalities that arise from lesions confined to the MCP. In 23 patients with acute strokes restricted to unilateral MCPs, we investigated the clinical features and ocular motor findings including spontaneous nystagmus, saccades, smooth pursuit, ocular tilt reaction, and head impulse tests. Bithermal caloric tests and audiometry were also performed. Patients with strokes restricted to the MCP usually developed acute vertigo or imbalance, along with few sensorimotor signs or auditory symptoms. Patients frequently showed abnormal eye movements that included spontaneous horizontal/torsional nystagmus, ocular tilt reaction, gaze-evoked nystagmus, abnormal head impulse responses, and bilaterally impaired horizontal smooth pursuit. Unilateral MCP strokes produce acute vertigo and imbalance with distinct ocular motor abnormalities, which are primarily caused by damage to the central vestibular structures and by disruption of the neural pathways responsible for eye-position stabilization and smooth pursuit.


Assuntos
Pedúnculo Cerebelar Médio/patologia , Transtornos da Motilidade Ocular/etiologia , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
12.
Ann Thorac Surg ; 107(3): 897-902, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30253162

RESUMO

BACKGROUND: Not all surgeons performing lobectomy in the United States report outcomes to The Society of Thoracic Surgeons General Thoracic Surgery Database (STS GTSD). We examined penetration, completeness, and representativeness of the STS GTSD for lobectomy in the Centers for Medicare and Medicaid Services (CMS) patient population. METHODS: The STS GTSD lobectomies from 2002 to 2013 were linked and matched to CMS data using a deterministic matching algorithm. Penetration at center- and patient-level were determined by the number of CMS lobectomy sites and patients, matched to STS GTSD data, divided by the total number of CMS lobectomy sites and patients, respectively. Completeness was defined as the ratio of lobectomies linked to STS GTSD data to the total number of lobectomies. Representativeness was determined by comparing outcomes for patients undergoing lobectomy at matched and unmatched STS GTSD sites. RESULTS: A total of 9,569 centers were included in the study. Center level penetration steadily increased from 1.2% (10 of 859 sites) in 2002 to 25% (169 of 675 sites) in 2013. Patient-level penetration was highest, 38% (4,177 of 11,018), in 2013. Completeness at GTSD sites varied from 59% to 78% over the study period. Postoperative length of stay was longer for nonparticipants than for STS GTSD surgeons (median 6 versus 5 days, p < 0.001); 30-day mortality was higher for nonparticipants than for STS GTSD participants (3.3% versus 1.6%, p < 0.001). CONCLUSIONS: Participation in the STS GTSD has increased over time, but penetration lags behind that of the other STS National Databases. The STS GTSD participants have superior observed perioperative outcomes for lobectomy compared with nonparticipants. Database participation may reflect high quality care, and ongoing efforts to increase surgeon participation in the STS GTSD should be continued.


Assuntos
Algoritmos , Neoplasias Pulmonares/cirurgia , Pneumonectomia/estatística & dados numéricos , Qualidade da Assistência à Saúde/estatística & dados numéricos , Sociedades Médicas , Cirurgiões/estatística & dados numéricos , Cirurgia Torácica , Idoso , Bases de Dados Factuais , Feminino , Humanos , Masculino , Estudos Retrospectivos , Estados Unidos
13.
J Neuroophthalmol ; 39(2): 181-185, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30028361

RESUMO

BACKGROUND: The mechanisms of pendular seesaw nystagmus (SSN) remain unknown. METHODS: We evaluated modulation of pendular SSN by removal of visual fixation, convergence, and positional changes in 2 patients, one with bitemporal hemianopia due to a traumatic damage of the optic chiasm and the other with platybasia compressing the medulla and lower cerebellum. RESULTS: In both patients, the pendular SSN markedly decreased or disappeared with convergence, without visual fixation in darkness, during static head tilt toward each shoulder while sitting and while supine. CONCLUSIONS: The similar patterns of nystagmus modulation observed in our patients with a different etiology indicate a common role of both visual and otolithic inputs in generating pendular SSN.

14.
Heart ; 105(5): 370-377, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30228248

RESUMO

OBJECTIVE: The association with B-type natriuretic peptide (BNP), disease progression and outcomes in patients with atrial fibrillation (AF) has not been thoroughly investigated. METHODS: We evaluated the association between BNP levels and outcomes, including AF progression, composite outcome of major adverse cardiovascular or neurological events (MACNE) and major bleeding, via pooled logistic regression and Cox frailty models in Outcomes Registry for Better Informed Treatment of Atrial Fibrillation II registry. AF progression was defined as either paroxysmal becoming persistent or permanent, or persistent becoming permanent at any follow-up. RESULTS: Among 13 375 patients with AF, 2797 with BNP values at baseline (median age (IQR), 72.0 (63.0-80.0) years; 43.0% women; median BNP, 238 (102-502) ng/L; 42.3% prior heart failure) were included in the models evaluating the association between BNP levels and MACNE or major bleeding. Of these, 1282 patients with paroxysmal or persistent AF at baseline were analysed in AF progression model. The likelihood of AF progression (adjusted OR, 1.11 for every 100 ng/mL; 95% CI 1.03 to 1.19) and MACNE (adjusted HR, 1.11 for every doubling in BNP values; 95% CI 1.01 to 1.22) increased with BNP concentration, while the elevated BNP values were not associated with increased risks of major bleeding. BNP values improved the risk prediction of AF progression and MACNE when added to conventional risk estimates. CONCLUSIONS: BNP levels are associated with increased risk of AF progression and cardiovascular outcomes in patients with AF. Further studies are required to assess whether biomarker-based risk stratification improves patient outcomes. CLINICAL TRIAL REGISTRATION: NCT01701817.

15.
Jpn J Nurs Sci ; 16(4): 385-395, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30569630

RESUMO

AIM: To develop flipped learning classes by using film clips for undergraduate nursing students in an online nursing informatics course, based on the Analysis, Design, Development, Implementation, and Evaluation model, and to evaluate the effectiveness and students' responses to this method of teaching. METHODS: Sixty-four second-year nursing students participated in the course. The nursing students' knowledge was assessed at the beginning and end of each of the five classes. Moreover, their intention to recommend the classes to other students and additional comments were elicited by using semistructured questionnaires. RESULTS: Knowledge about each core concept of nursing informatics reflected significant improvement. Regarding the intention to recommend the class to others, 62 (96.8%) students answered "strongly recommend" or "recommend." CONCLUSION: Integrating flipped learning classes by using film clips in an online nursing informatics course improved the nursing students' knowledge and is a format that is desired by students.

16.
J Am Heart Assoc ; 7(16): e008764, 2018 08 21.
Artigo em Inglês | MEDLINE | ID: mdl-30369317

RESUMO

Background Current American College of Cardiology/American Heart Association guidelines suggest that for patients with atrial fibrillation who are at low risk for stroke (CHA2DS2VASc=1) (or women with CHA2DS2VASc=2) a variety of treatment strategies may be considered. However, in clinical practice, patterns of treatment in these "low-risk" patients are not well described. The objective of this analysis is to define thromboembolic event rates and to describe treatment patterns in patients with low-risk CHA2DS2VASc scores. Methods and Results We compared characteristics, treatment strategies, and outcomes among patients with a CHA2DS2VASc=0, CHA2DS2VASc=1, females with a CHA2DS2VASc=2, and CHA2DS2VASc ≥2 in ORBIT-AF (Outcomes Registry for Better Informed Treatment of Atrial Fibrillation) I & II. Compared with CHA2DS2VASc ≥2 patients (84.2%), those with a CHA2DS2VASc=0 (60.3%), 1 (69.9%), and females with a CHA2DS2VASc score=2 (72.4%) were significantly less often treated with oral anticoagulation ( P<0.0001). Stroke rates were low overall and ranged from 0 per 100 patient-years in those with CHA2DS2VASc=0, 0.8 (95% confidence interval [CI] [0.5-1.2]) in those with CHA2DS2VASc=1, 0.8 (95% CI [0.4-1.6]) in females with a CHA2DS2VASc score=2, and 1.7 (95% CI [1.6-1.9]) in CHA2DS2VASc ≥2. All-cause mortality (per 100 patient-years) was highest in females with a CHA2DS2VASc score=2 (1.4) (95% CI [0.8-2.3]), compared with patients with a CHA2DS2VASc=0 (0.2) (95% CI [0.1-1.0]), and CHA2DS2VASc=1 (1.0) (95% CI [0.7-1.4]), but lower than patients with a CHA2DS2VASc ≥2 (5.7) (95% CI [5.4-6.0]). Conclusion The majority of CHA2DS2VASc=0-1 patients are treated with oral anticoagulation. In addition, the absolute risks of death and stroke/transient ischemic attack were low among both male and females CHA2DS2VASc=0-1 as well as among females with a CHA2DS2VASc score=2. Clinical Trial Registration URL: http://www.clinicaltrials.gov . Unique identifier: NCT01701817.


Assuntos
Anticoagulantes/uso terapêutico , Fibrilação Atrial/tratamento farmacológico , Ataque Isquêmico Transitório/prevenção & controle , Inibidores da Agregação de Plaquetas/uso terapêutico , Acidente Vascular Cerebral/prevenção & controle , Idoso , Idoso de 80 Anos ou mais , Fibrilação Atrial/complicações , Estudos de Casos e Controles , Feminino , Humanos , Ataque Isquêmico Transitório/epidemiologia , Ataque Isquêmico Transitório/etiologia , Masculino , Pessoa de Meia-Idade , Mortalidade , Sistema de Registros , Medição de Risco , Fatores Sexuais , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/etiologia
17.
J Thromb Thrombolysis ; 46(4): 435-439, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30051164

RESUMO

Anticoagulation is highly effective for the prevention of stroke in patients with atrial fibrillation (AF) but it is dependent on patients continuing therapy. While studies have demonstrated suboptimal therapeutic persistence on warfarin, few have studied persistence rates with non vitamin K antagonist oral anticoagulants (NOACs) such as dabigatran. We examined rates of continued use of dabigatran versus warfarin over 1 year among AF patients in the ORBIT-AF registry between June 29, 2010 and August 09, 2011. Multivariable logistic regression analysis was used to identify characteristics associated with 1-year persistent use of dabigatran therapy or warfarin. At baseline, 6.4 and 93.6% of 7150 AF patients were on dabigatran and warfarin, respectively. At 12 months, dabigatran-treated patients were less likely to have continued their therapy than warfarin-treated patients [Adjusted persistence rates: 66% (95% CI 60-72) vs. 82% (95% CI 80-84), p < .0001]. Predictors of dabigatran persistence included: CHA2DS2-VASc risk scores ≥ 2 OR 5.69, (95% CI 1.50-21.6) and BMI greater than 25 mg/m2 but less than 38 kg/m2 1.05 (1.01-1.09). Predictors of persistence on warfarin included: African American race (vs. White) 1.53 (1.07-2.19), Hispanic ethnicity (vs. White) 1.66 (1.06-2.60), paroxysmal and persistent AF (vs. new-onset) 1.68 (1.21-2.33) and 1.91 (1.35-2.69) respectively, LVH 1.40 (1.08-1.81), and CHA2DS2-VASc risk scores ≥ 2 1.94 (1.18-3.19). While 1-year persistence rates for dabigatran were lower than warfarin, persistence rates for both agents were not ideal. Future studies evaluating contemporary persistence are needed in order to assist in better targeting interventions aimed to improve anticoagulation persistence.


Assuntos
Fibrilação Atrial/tratamento farmacológico , Dabigatrana/uso terapêutico , Cooperação do Paciente/estatística & dados numéricos , Varfarina/uso terapêutico , Idoso , Anticoagulantes/uso terapêutico , Gastroenteropatias/induzido quimicamente , Hemorragia/induzido quimicamente , Humanos , Sistema de Registros , Acidente Vascular Cerebral/prevenção & controle
18.
Ann Thorac Surg ; 106(4): 1055-1062, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-29883646

RESUMO

BACKGROUND: Prior studies suggest underutilization of invasive mediastinal staging for lung cancer. We hypothesized that The Society of Thoracic Surgeons General Thoracic Surgery Database (STS-GTSD) participants would have higher rates of invasive staging compared with previous reports. METHODS: We conducted a retrospective cohort study (2012 to 2016) of lung cancer patients staged by computed tomography and positron-emission tomography and first treated with an anatomic resection. We defined invasive staging by the use of mediastinoscopy, endosonography, or thoracoscopy. Standardized incidence ratios were used to compare participant-level rates of invasive staging, and Poisson regression was used to identify factors associated with invasive staging. RESULTS: Among 29,015 patients across 256 participating STS-GTSD sites, 34% (95% confidence interval: 33% to 34%) underwent invasive staging. The overall rate of invasive staging did not change between 2012 and 2016 (p trend = 0.16). Increasing clinical stage and features suggestive of a central tumor were associated with invasive staging (p < 0.001). Rates of invasive staging among patients with clinical stage IB or greater or features suggestive of a central tumor were 43% (95% confidence interval: 42% to 44%) and 52% (95% confidence interval: 50% to 54%), respectively. There was a more than 40-fold variation in rates of invasive staging across 251 centers contributing at least 10 cases (standardized incidence ratio: lowest = 0.08; highest = 3.26); 66 sites (26%) performed invasive mediastinal staging less often than average and 77 sites (31%) performed invasive staging more often than average. CONCLUSIONS: The STS-GTSD participants performed invasive mediastinal staging more frequently than prior reports, and yet only in a minority of patients. Rates of invasive mediastinal staging vary widely across STS-GTSD participants.


Assuntos
Carcinoma Pulmonar de Células não Pequenas/diagnóstico , Endossonografia/métodos , Neoplasias Pulmonares/diagnóstico , Mediastinoscopia/métodos , Estadiamento de Neoplasias/métodos , Tomografia Computadorizada com Tomografia por Emissão de Pósitrons/métodos , Toracoscopia/métodos , Idoso , Carcinoma Pulmonar de Células não Pequenas/secundário , Carcinoma Pulmonar de Células não Pequenas/cirurgia , Bases de Dados Factuais , Feminino , Seguimentos , Humanos , Neoplasias Pulmonares/cirurgia , Metástase Linfática/diagnóstico por imagem , Masculino , Mediastino , Pneumonectomia/métodos , Estudos Retrospectivos , Sociedades Médicas , Cirurgia Torácica , Estados Unidos
19.
Front Neurol ; 9: 433, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29930534

RESUMO

Patients with vestibular migraine are susceptible to motion sickness. This study aimed to determine whether the severity of posture instability is related to the susceptibility to motion sickness. We used a visual motion paradigm with two conditions of the stimulated retinal field and the head posture to quantify postural stability while maintaining a static stance in 18 patients with vestibular migraine and in 13 age-matched healthy subjects. Three parameters of postural stability showed differences between VM patients and controls: RMS velocity (0.34 ± 0.02 cm/s vs. 0.28 ± 0.02 cm/s), RMS acceleration (8.94 ± 0.74 cm/s2 vs. 6.69 ± 0.87 cm/s2), and sway area (1.77 ± 0.22 cm2 vs. 1.04 ± 0.25 cm2). Patients with vestibular migraine showed marked postural instability of the head and neck when visual stimuli were presented in the retinal periphery. The pseudo-Coriolis effect induced by head roll tilt was not responsible for the main differences in postural instability between patients and controls. Patients with vestibular migraine showed a higher visual dependency and low stability of the postural control system when maintaining quiet standing, which may be related to susceptibility to motion sickness.

20.
Ann Thorac Surg ; 106(4): 973-980, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-29936024

RESUMO

BACKGROUND: Body mass index (BMI) is not routinely taken into consideration for risk stratification prior to esophagectomy. Extremes of BMI are associated with adverse surgical outcomes in a variety of surgical specialties. We assessed the relationship of BMI to outcomes after esophagectomy for cancer. METHODS: Patients in the Society of Thoracic Surgeons General Thoracic Surgery Database (2009 to 2016) who underwent elective esophagectomy for cancer were selected for analysis. Open and minimally invasive approaches were included. Complications were categorized based on the Esophagectomy Complications Consensus Group recommendations. Multivariable logistic regression was used to adjust for confounding variables. RESULTS: We evaluated 9,389 patients grouped by BMI: underweight (<18.5 kg/m2; 3%), normal (18.5 to 24.9 kg/m2; 32%), overweight (25 to 29.9 kg/m2; 36%), obese I (30 to 34.9 kg/m2; 19%), obese II (35 to 39.9 kg/m2; 7%), and obese III (≥40 kg/m2; 3%). Most patients underwent open Ivor Lewis (33%), open transhiatal (23%), or minimally invasive Ivor Lewis (22%) approaches. The operative mortality rate was 3.4%; the frequency of complications by category ranged from 4% to 28%. On multivariable analysis, overall differences were identified among BMI categories for 7 out of 9 complication types. Underweight and obese III categories were associated with increased risk. In contrast, overweight and obese I BMI were associated with decreased risk for most complication types. CONCLUSIONS: BMI is associated with postoperative complications after esophagectomy. Postoperative risk assessment and prehabilitation regimens should be adjusted accordingly when planning an esophagectomy for a patient with very low or very high BMI.


Assuntos
Índice de Massa Corporal , Neoplasias Esofágicas/cirurgia , Esofagectomia/efeitos adversos , Obesidade/complicações , Complicações Pós-Operatórias/etiologia , Medição de Risco/métodos , Magreza/complicações , Idoso , Neoplasias Esofágicas/complicações , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Duração da Cirurgia , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos , Fatores de Risco , Taxa de Sobrevida/tendências , Estados Unidos/epidemiologia
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