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1.
Pharmacoepidemiol Drug Saf ; 31(3): 361-369, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34888983

RESUMO

PURPOSE: Pregnant women and infants less than 6 months of age have a higher risk of complications from influenza. Vaccination is recommended for pregnant women to decrease risk of infection and hospitalizations between both the women themselves and infants. However, vaccination rates remain low in pregnant women. The objective of this study was to determine the association between having a usual source of care and seasonal influenza vaccination rates among women who were pregnant between 2012 and 2016. METHODS: A retrospective study was conducted using pooled data from the 2012-2016 Medical Expenditure Panel Survey. Frequencies of seasonal influenza vaccinations and other sociodemographic factors were estimated. A multivariable log-binomial regression model was used to examine the association between having a usual source of care and seasonal influenza vaccination rates. RESULTS: The weighted influenza vaccination rate among pregnant women was 54.5%. About one third did not have a usual source of care. The adjusted prevalence ratio of receiving an influenza vaccine for pregnant women without a usual source of care was 0.76 (95% confidence interval = 0.60-0.98). The top three main reasons for not having a usual source of care were being seldom or never sick (55.7%), not having health insurance (10.6%), and having recently moved to an area (9.9%). CONCLUSIONS: Pregnant women without a usual source of care had significantly lower probability of being vaccinated against seasonal influenza. Improving access to care through greater insurance coverage, addressing cost barriers, and providing patient education may help improve vaccination rates in this population.


Assuntos
Vacinas contra Influenza , Influenza Humana , Complicações Infecciosas na Gravidez , Feminino , Humanos , Lactente , Influenza Humana/epidemiologia , Influenza Humana/prevenção & controle , Gravidez , Complicações Infecciosas na Gravidez/epidemiologia , Complicações Infecciosas na Gravidez/prevenção & controle , Gestantes , Estudos Retrospectivos , Vacinação
2.
BMC Geriatr ; 22(1): 306, 2022 04 09.
Artigo em Inglês | MEDLINE | ID: mdl-35395728

RESUMO

BACKGROUND: Proton pump inhibitors, benzodiazepines, and antipsychotics are considered potentially inappropriate medications in older adults according to the American Geriatric Society Beers Criteria, and deprescribing algorithms have been developed to guide use of these drug classes. The objective of this study was to describe the number of beneficiaries prescribed these medications, provider specialty and regional trends in prescribing, and the aggregate costs for these claims in Medicare Part D. METHODS: This was a retrospective cross-sectional study using publicly available Medicare Provider Utilization and Payment Data: Part D Prescriber data for years 2013-2019. Descriptive statistics and the Cochrane-Armitage test were used to summarize the trends. RESULTS: Overall, 30.1%, 25.6%, 4.6% of Medicare Part D beneficiaries had a proton pump inhibitor, benzodiazepine, and antipsychotic claim in 2013, respectively. These rates decreased to 27.5%, 17.5%, 4.1% in 2019 (p-value < 0.0001). However, the number of standardized 30-day claims increased from 63 million in 2013 to 84 million in 2019 for proton pump inhibitors, remained steady for benzodiazepines and slightly increased (10 million to 13 million) for antipsychotics. Total aggregate costs decreased by almost $1.5 billion for proton pump inhibitor, $100 million for benzodiazepine, and $700 million for antipsychotic from 2013 to 2019 (p-value < 0.0001). Almost 93% of gastroenterologists prescribed a proton pump inhibitor, and 60% of psychiatrists prescribed benzodiazepines and antipsychotics all seven years. The Other region had the highest percentage of providers prescribing all three classes and the highest number of standardized 30-day benzodiazepine claims. CONCLUSIONS: The overall rate of use of proton pump inhibitors, benzodiazepines, and antipsychotics decreased from 2013-2019 among Medicare Part D beneficiaries. Despite the increase in raw number of standardized 30-day claims, the costs decreased which is likely due to generics made available. These prescribing trends may aid in identifying and targeting potential deprescribing interventions.


Assuntos
Antipsicóticos , Medicare Part D , Idoso , Antipsicóticos/uso terapêutico , Benzodiazepinas/uso terapêutico , Estudos Transversais , Humanos , Prescrição Inadequada/prevenção & controle , Padrões de Prática Médica , Inibidores da Bomba de Prótons/uso terapêutico , Estudos Retrospectivos , Estados Unidos/epidemiologia
3.
Am J Ther ; 29(1): e1-e17, 2020 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-33021546

RESUMO

BACKGROUND: The 2013 American College of Cardiology/American Heart Association cholesterol guidelines, which identified four groups of patients at risk for atherosclerotic cardiovascular disease events, departed from the target-based approach to managing cholesterol. The impact of these guidelines on high-intensity statin use across the United States is unclear. STUDY QUESTION: The primary objective was to evaluate the rate of high-intensity potential (HIP) statin use before and after the 2013 guidelines. The secondary objective was to identify predictors of HIP statin use within the study population. STUDY DESIGN: A national cross-sectional study was conducted using data from the National Ambulatory Medical Care Survey. Office visits involving patients aged 21-75 years where criteria for HIP statin therapy were met were included. Visits involving pregnant patients were excluded. MEASURES AND OUTCOMES: Prescribing trends of HIP statins were measured from National Ambulatory Medical Care Survey data before and after the 2013 guidelines. Multivariate logistic regression identified variables associated with prescribing HIP statins. RESULTS: A total of 48,884 visits were included, representing more than 940 million office visits nationally. HIP statins were listed in 9.5% and 16.5% of visits before and after 2013, respectively (odds ratio [OR] 1.88; 95% confidence interval [CI] 1.62-2.20). The strongest predictors of HIP statin use were antihypertensive use (OR 5.38, 95% CI 4.67-6.20), comorbid hyperlipidemia (OR 2.93, 95% CI 2.62-3.29), Black race (OR 0.63, 95% CI 0.49-0.81), and Hispanic ethnicity (OR 0.65, 95% CI 0.52-0.80). CONCLUSIONS: Prescribing rates for HIP statins increased after the release of the 2013 guidelines. The prescribing rates were lower than expected, especially in Black and Hispanic patients. These observations signify opportunities to improve the quality of care for patients who are at risk for atherosclerotic cardiovascular disease events in the United States.


Assuntos
Aterosclerose , Doenças Cardiovasculares , Inibidores de Hidroximetilglutaril-CoA Redutases , American Heart Association , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/prevenção & controle , Colesterol , Estudos Transversais , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Estados Unidos/epidemiologia
4.
Semin Respir Crit Care Med ; 40(3): 386-393, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-31525813

RESUMO

Placement of a chest tube drains intrapleural fluid and air. The tube should be attached to a drainage system, such as one-, two-, or three-compartment devices, a one-way (Heimlich) valve for ambulatory drainage, a digital system, or a vacuum bottle. The frequently employed three-compartment systems, currently integrated disposable units, allow adjustment of negative pressure or no suction (water seal), and include an air leak meter on the water seal chamber to be used for demonstrating and quantifying air leak. These readings are subjective and prone to interobserver variability. Digital pleural drainage systems offer the benefits of quantification of any air leak and pleural pressure. Indwelling pleural catheters, typically utilized for malignant pleural effusion, can be drained using vacuum bottles. Knowledge of the design and functionality of each device in the setting of an individual patient's specific pleural process facilitates the selection of practical and financially prudent chest tube drainage strategies.


Assuntos
Tubos Torácicos , Drenagem/instrumentação , Cateteres de Demora , Desenho de Equipamento , Humanos
5.
Respirology ; 24(5): 453-458, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30675961

RESUMO

BACKGROUND AND OBJECTIVE: Percutaneous lung biopsy for diagnostic sampling of peripheral lung nodules has been widely performed by interventional radiologists under computed tomography (CT) guidance. New technology allows pulmonologists to perform percutaneous lung biopsies using electromagnetic (EM) guided technology. With the adoption of this new technique, the safety, feasibility and diagnostic yield need to be explored. The goal of this study was to determine the safety, feasibility and diagnostic yield of EM-guided percutaneous lung biopsy performed by pulmonologists. METHODS: We conducted a retrospective, multicentre study of 129 EM-guided percutaneous lung biopsies that occurred between November 2013 and March 2017. The study consisted of seven academic and three community medical centres. RESULTS: The average age of participants was 65.6 years, BMI was 26.3 and 50.4% were females. The majority of lesions were in the right upper lobe (37.2%) and left upper lobe (31.8%). The mean size of the lesions was 27.31 mm and the average distance from the pleura was 13.2 mm. Practitioners averaged two fine-needle aspirates and five core biopsies per procedure. There were 23 (17.8%) pneumothoraces, of which 16 (12.4%) received small-bore chest tube placement. The diagnostic yield of percutaneous lung biopsy was 73.7%. When EM-guided bronchoscopic sampling was also performed during the same procedural encounter, the overall diagnostic yield increased to 81.1%. CONCLUSION: In this large multicentred series, the use of EM guidance for percutaneous lung biopsies was safe and feasible, with acceptable diagnostic yield in the hands of pulmonologists. A prospective multicentre trial to validate these findings is currently underway (NCT03338049).


Assuntos
Biópsia/métodos , Neoplasias Pulmonares/patologia , Nódulos Pulmonares Múltiplos/patologia , Pneumologia/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Biópsia/efeitos adversos , Biópsia por Agulha Fina/efeitos adversos , Biópsia com Agulha de Grande Calibre/efeitos adversos , Broncoscopia , Fenômenos Eletromagnéticos , Estudos de Viabilidade , Feminino , Humanos , Biópsia Guiada por Imagem/efeitos adversos , Pulmão/patologia , Neoplasias Pulmonares/diagnóstico , Masculino , Pessoa de Meia-Idade , Nódulos Pulmonares Múltiplos/diagnóstico , Pneumotórax/etiologia , Estudos Retrospectivos
6.
Lung ; 197(5): 627-633, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31463549

RESUMO

PURPOSE: Air leaks are common after lobectomy, segmentectomy, and lung volume reduction surgery (LVRS). This can increase post-operative morbidity, cost, and hospital length of stay. The management of post-pulmonary resection air leaks remains challenging. Minimally invasive effective interventions are necessary. The Spiration Valve System (SVS, Olympus/Spiration Inc., Redmond, WA, US) is approved by the FDA under humanitarian use exemption for management of prolonged air leaks. METHODS: This is a prospective multicenter registry of 39 patients with air leaks after lobectomy, segmentectomy, and LVRS managed with an intention to use bronchoscopic SVS to resolve air leaks. RESULTS: Bronchoscopic SVS placement was feasible in 82.1% of patients (32/39 patients) and 90 valves were placed with a median of 2 valves per patient (mean of 2.7 ± 1.5 valves, range of 1 to 7 valves). Positive response to SVS placement was documented in 76.9% of all patients (30/39 patients) and in 93.8% of patients when SVS placement was feasible (30/32 patients). Air leaks ultimately resolved when SVS placement was feasible in 87.5% of patients (28/32 patients), after a median of 2.5 days (mean ± SD of 8.9 ± 12.4 days). Considering all patients with an intention to treat analysis, bronchoscopic SVS procedure likely contributed to resolution of air leaks in 71.8% of patients (28/39 patients). The post-procedure median hospital stay was 4 days (mean 6.0 ± 6.1 days). CONCLUSIONS: This prospective registry adds to the growing body of literature supporting feasible and effective management of air leaks utilizing one-way valves.


Assuntos
Broncoscopia/instrumentação , Pneumonectomia/efeitos adversos , Pneumotórax/terapia , Idoso , Broncoscopia/efeitos adversos , Estudos de Viabilidade , Feminino , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Pneumonectomia/instrumentação , Pneumotórax/diagnóstico , Pneumotórax/etiologia , Pneumotórax/fisiopatologia , Estudos Prospectivos , Recuperação de Função Fisiológica , Sistema de Registros , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento , Estados Unidos
7.
BMC Public Health ; 19(1): 103, 2019 Jan 22.
Artigo em Inglês | MEDLINE | ID: mdl-30669994

RESUMO

BACKGROUND: Atherosclerosis and COPD are systemic inflammatory diseases that share common risk factors including cigarette smoking. A high level of nicotine dependence is emerging as a recently identified risk factor for pulmonary impairment, chronic obstructive pulmonary disease and tobacco-related cancers. We hypothesized that nicotine dependence is associated with the risk of atherosclerosis in long-term cigarette smokers. METHODS: A nested case-control study was conducted within the National Lung Cancer Screening Trial- American College of Radiology Imaging Network. Cases were defined as having a new diagnosis of any type of atherosclerosis. Controls were matched on a 2:1 basis by age, sex, race, study center, smoking status, years of smoking, and frequency of smoking. Dependence was measured by the time to first cigarette after awakening (TTFC). RESULTS: The study included 166 cases and 286 controls. Compared to participants who smoked within 5 min after waking, the risk of atherosclerosis for participants who smoked an hour or more after waking was borderline non-significant (odds ratio = 0.49, 95% confidence intervals [CI] 0.23, 1.00). Findings were similar for men and women. For aortic atherosclerosis, the corresponding odds ratio was 0.24 (95% CI 0.08, 0.69). Hypertension was associated with an increased risk and body mass index was associated with a decreased risk of aortic atherosclerosis. The TTFC was unrelated to coronary atherosclerosis. CONCLUSIONS: Compared to smoking immediately after waking, delaying an hour or more reduces the risk of aortic atherosclerosis even among long-term heavy smokers. Possible mechanisms that explain this association are intensity of smoking, inflammation and oxidative stress, and elevated lipid levels.


Assuntos
Aterosclerose/epidemiologia , Fumar/efeitos adversos , Tabagismo/epidemiologia , Idoso , Estudos de Casos e Controles , Detecção Precoce de Câncer , Feminino , Humanos , Neoplasias Pulmonares/diagnóstico , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Estados Unidos/epidemiologia
8.
Am J Respir Crit Care Med ; 193(1): 68-77, 2016 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-26367186

RESUMO

RATIONALE: Advanced bronchoscopy techniques such as electromagnetic navigation (EMN) have been studied in clinical trials, but there are no randomized studies comparing EMN with standard bronchoscopy. OBJECTIVES: To measure and identify the determinants of diagnostic yield for bronchoscopy in patients with peripheral lung lesions. Secondary outcomes included diagnostic yield of different sampling techniques, complications, and practice pattern variations. METHODS: We used the AQuIRE (ACCP Quality Improvement Registry, Evaluation, and Education) registry to conduct a multicenter study of consecutive patients who underwent transbronchial biopsy (TBBx) for evaluation of peripheral lesions. MEASUREMENTS AND MAIN RESULTS: Fifteen centers with 22 physicians enrolled 581 patients. Of the 581 patients, 312 (53.7%) had a diagnostic bronchoscopy. Unadjusted for other factors, the diagnostic yield was 63.7% when no radial endobronchial ultrasound (r-EBUS) and no EMN were used, 57.0% with r-EBUS alone, 38.5% with EMN alone, and 47.1% with EMN combined with r-EBUS. In multivariate analysis, peripheral transbronchial needle aspiration (TBNA), larger lesion size, nonupper lobe location, and tobacco use were associated with increased diagnostic yield, whereas EMN was associated with lower diagnostic yield. Peripheral TBNA was used in 16.4% of cases. TBNA was diagnostic, whereas TBBx was nondiagnostic in 9.5% of cases in which both were performed. Complications occurred in 13 (2.2%) patients, and pneumothorax occurred in 10 (1.7%) patients. There were significant differences between centers and physicians in terms of case selection, sampling methods, and anesthesia. Medical center diagnostic yields ranged from 33 to 73% (P = 0.16). CONCLUSIONS: Peripheral TBNA improved diagnostic yield for peripheral lesions but was underused. The diagnostic yields of EMN and r-EBUS were lower than expected, even after adjustment.


Assuntos
Broncoscopia/estatística & dados numéricos , Pneumopatias/diagnóstico , Idoso , Biópsia por Agulha Fina/estatística & dados numéricos , Lavagem Broncoalveolar/estatística & dados numéricos , Broncoscopia/efeitos adversos , Broncoscopia/métodos , Feminino , Humanos , Pulmão/patologia , Pneumopatias/patologia , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/patologia , Masculino , Pneumotórax/etiologia , Padrões de Prática Médica/estatística & dados numéricos , Sistema de Registros/estatística & dados numéricos , Sensibilidade e Especificidade , Resultado do Tratamento
10.
Proteomics ; 15(18): 3267-77, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26058877

RESUMO

Biomarkers to identify subjects at high-risk for developing lung cancer will revolutionize the disease outlook. Most biomarker studies have focused on patients already diagnosed with lung cancer and in most cases the disease is often advanced and incurable. The objective of this study was to use proteomics to identify a plasma biomarker for early detection of lung lesions that may subsequently be the harbinger for cancer. Plasma samples were obtained from subjects without lung cancer grouped as never, current, or ex-smokers. An iTRAQ-based proteomic analysis was performed on these pooled plasma samples. We identified 31 proteins differentially abundant in current smokers or ex-smokers relative to never smokers. Western blot and ELISA analyses confirmed the iTRAQ results that demonstrated an increase of apolipoprotein E (APOE) in current smokers as compared to both never and ex-smokers. There was a strong and significant correlation of the plasma APOE levels with development of premalignant squamous metaplasia. Additionally, we also showed that higher tissue levels of APOE are seen with squamous metaplasia, supporting a direct relationship. Our analysis reveals that elevated plasma APOE is associated with smoking, and APOE is a novel predictive protein biomarker for early morphological changes of squamous metaplasia in the lung.


Assuntos
Apolipoproteínas E/análise , Biomarcadores Tumorais/sangue , Proteínas Sanguíneas/análise , Pulmão/patologia , Metaplasia/sangue , Fumar/sangue , Adulto , Idoso , Feminino , Humanos , Marcação por Isótopo , Masculino , Metaplasia/epidemiologia , Pessoa de Meia-Idade , Proteômica/métodos , Curva ROC , Fumar/epidemiologia , Adulto Jovem
11.
BMC Surg ; 15: 42, 2015 Apr 11.
Artigo em Inglês | MEDLINE | ID: mdl-25881169

RESUMO

BACKGROUND: Percutaneous drainage of infected intraabdominal fluid collections is preferred over surgical drainage due to lower morbidity and costs. However, it can be a challenging procedure and catheter insertion carries the potential to contaminate the pleural space from the abdomen. This retrospective analysis demonstrates the clinical and radiographic correlation between percutaneous drainage of infected intraabdominal collections and the development of iatrogenic pleural space infections. METHODS: A retrospective single institution analysis of 550 consecutive percutaneous drainage procedures for intraabdominal fluid collections was performed over 24 months. Patient charts and imaging were reviewed with regard to pleural space infections that were attributed to percutaneous drain placements. Institutional review board approval was obtained for conduct of the study. RESULTS: 6/550 (1.1%) patients developed iatrogenic pleural space infections after percutaneous drainage of intraabdominal fluid collections. All 6 patients presented with respiratory symptoms and required pleural space drainage (either by needle aspiration or chest tube placement), 2 received intrapleural fibrinolytic therapy and 1 patient had to undergo surgical drainage. Pleural effusion cultures revealed same bacteria in both intraabdominal and pleural fluid in 3 (50%) cases. A video with a dynamic radiographic sequence demonstrating the contamination of the pleural space from percutaneous drainage of an infected intraabdominal collection is included. CONCLUSIONS: Iatrogenic pleural space infections after percutaneous drainage of intraabdominal fluid collections occur at a low incidence, but the pleural empyema can be progressive requiring prompt chest tube drainage, intrapleural fibrinolytic therapy or even surgery. Expertise in intraabdominal drain placements, awareness and early recognition of this complication is critical to minimize incidence, morbidity and mortality in these patients.


Assuntos
Drenagem/efeitos adversos , Empiema Pleural/microbiologia , Empiema Pleural/terapia , Derrame Pleural/microbiologia , Derrame Pleural/terapia , Cirurgia Assistida por Computador/efeitos adversos , Adolescente , Idoso , Feminino , Humanos , Doença Iatrogênica , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
12.
J Med Imaging (Bellingham) ; 11(3): 036002, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38827776

RESUMO

Purpose: Early detection of cancer is crucial for lung cancer patients, as it determines disease prognosis. Lung cancer typically starts as bronchial lesions along the airway walls. Recent research has indicated that narrow-band imaging (NBI) bronchoscopy enables more effective bronchial lesion detection than other bronchoscopic modalities. Unfortunately, NBI video can be hard to interpret because physicians currently are forced to perform a time-consuming subjective visual search to detect bronchial lesions in a long airway-exam video. As a result, NBI bronchoscopy is not regularly used in practice. To alleviate this problem, we propose an automatic two-stage real-time method for bronchial lesion detection in NBI video and perform a first-of-its-kind pilot study of the method using NBI airway exam video collected at our institution. Approach: Given a patient's NBI video, the first method stage entails a deep-learning-based object detection network coupled with a multiframe abnormality measure to locate candidate lesions on each video frame. The second method stage then draws upon a Siamese network and a Kalman filter to track candidate lesions over multiple frames to arrive at final lesion decisions. Results: Tests drawing on 23 patient NBI airway exam videos indicate that the method can process an incoming video stream at a real-time frame rate, thereby making the method viable for real-time inspection during a live bronchoscopic airway exam. Furthermore, our studies showed a 93% sensitivity and 86% specificity for lesion detection; this compares favorably to a sensitivity and specificity of 80% and 84% achieved over a series of recent pooled clinical studies using the current time-consuming subjective clinical approach. Conclusion: The method shows potential for robust lesion detection in NBI video at a real-time frame rate. Therefore, it could help enable more common use of NBI bronchoscopy for bronchial lesion detection.

13.
J Pharm Pract ; 36(2): 238-248, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-34278847

RESUMO

Background: Community pharmacists can help fight antimicrobial resistance by intervening in children's antibiotic prescriptions for upper respiratory tract infections (URTIs). However, caregivers' attitudes and perspectives on this are unknown. Objective: To evaluate children's caregivers' acceptability of pharmacists intervening in their antibiotic prescriptions for URTIs with respect to their knowledge of and attitude toward pharmacists and knowledge, beliefs, and behaviors related to antibiotics. Methods: A 69-item survey was created and sent to a panel of caregivers. ANCOVA and path analysis were used to evaluate the relationship between caregiver characteristics and their acceptability of pharmacists intervening in children's antibiotic prescriptions for URTIs. Results: Responses from 246 caregivers who met the inclusion and exclusion criteria were analyzed. Mean caregivers' acceptability of pharmacists intervening in children's antibiotic prescriptions for URTIs was 3.25 out of 5 (±1.01). The ANCOVA model (adjusted R2 = .636) showed positive attitude toward pharmacists and being more accepting of health advice from pharmacists since the start of the COVID-19 pandemic were associated with higher caregiver acceptability of pharmacists intervening in children's antibiotic prescriptions. Caregivers with better relationships with their pharmacist also tend to have better attitudes toward pharmacists. Not wanting antibiotics for symptom relief was associated with decreased acceptability scores. Conclusion: Overall caregiver acceptability of pharmacists intervening in antibiotic prescriptions was slightly above neutral. Building a relationship with caregivers could help change their attitude and increase the acceptability of pharmacists intervening in children's antibiotic prescriptions. Caregivers seeking symptomatic relief may be more open to non-antibiotic alternatives.


Assuntos
COVID-19 , Infecções Respiratórias , Humanos , Criança , Farmacêuticos , Cuidadores , Antibacterianos/uso terapêutico , Pandemias , Prescrições , Infecções Respiratórias/tratamento farmacológico , Conhecimentos, Atitudes e Prática em Saúde
14.
IEEE Trans Biomed Eng ; 70(1): 318-330, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-35819999

RESUMO

BACKGROUND/OBJECTIVE: Accurate disease diagnosis and staging are essential for patients suspected of having lung cancer. The state-of-the-art minimally invasive tools used by physicians to perform these operations are bronchoscopy, for navigating the lung airways, and endobronchial ultrasound (EBUS), for localizing suspect extraluminal cancer lesions. While new image-guided systems enable accurate bronchoscope navigation close to a lesion, no means exists for guiding the final EBUS localization of an extraluminal lesion. We propose an EBUS simulation method to assist with EBUS localization. METHODS: The method draws on a patient's chest computed-tomography (CT) scan to model the ultrasound signal propagation through the tissue media. The method, which is suitable for simulating EBUS images for both radial-probe and convex-probe EBUS devices, entails three steps: 1) image preprocessing, which generates a 2D CT equivalent of the EBUS scan plane; 2) EBUS scan-line computation, which models ultrasound transmission to map the CT plane into a preliminary simulated EBUS image; and 3) image post-processing, which increases realism by introducing simulated EBUS imaging effects and artifacts. RESULTS: Results show that the method produces simulated EBUS images that strongly resemble images generated live by a real device and compares favorably to an existing ultrasound simulation method. It also produces images at a rate greater than real time (i.e., 53 frames/sec). We also demonstrate a successful integration of the method into an image-guided EBUS bronchoscopy system. CONCLUSION/SIGNIFICANCE: The method is effective and practical for procedure planning/preview and follow-on live guidance of EBUS bronchoscopy.


Assuntos
Broncoscopia , Neoplasias Pulmonares , Humanos , Broncoscopia/métodos , Neoplasias Pulmonares/diagnóstico por imagem , Endossonografia/métodos , Pulmão/diagnóstico por imagem , Ultrassonografia
15.
J Surg Oncol ; 105(7): 731-8, 2012 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-21960207

RESUMO

Approximately 50% of patients with metastatic disease develop a malignant pleural effusion (MPE). Prompt clinical evaluation and treatment to achieve successful palliation are the main goals of management of MPE. Optimal treatment is still controversial and there is no universal standard approach. Management options include observation, thoracentesis, indwelling pleural catheter (IPC) or chest tube placement, pleurodesis, and surgical pleurectomy. The treatment for each patient should be based on symptoms, general condition, and life expectancy.


Assuntos
Derrame Pleural Maligno/terapia , Terapia Combinada , Humanos , Derrame Pleural Maligno/diagnóstico , Derrame Pleural Maligno/etiologia , Soluções Esclerosantes/uso terapêutico , Cirurgia Torácica Vídeoassistida , Toracoscopia
16.
Res Social Adm Pharm ; 18(5): 2778-2785, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-34275751

RESUMO

BACKGROUND: Medication nonadherence is an important public health issue that has individual and system-level implications. Nonadherence can lead to negative health outcomes and illness, which in turn produce increased healthcare costs for both the individual and system. The transtheoretical model of change (TTM) can be a useful basis for interventions, as it can identify patients' current stages of change and guide them from nonadherence to adherence. OBJECTIVE: The objective of this systematic review was to determine the utilization of the TTM to predict or improve medication adherence in patients with chronic conditions. METHODS: A systematic review of current literature was conducted to obtain an overview of the use of TTM-informed interventions for medication adherence in chronic conditions. PubMed, Embase, PsycInfo and CINAHL databases were searched in July 2020. The methodological quality of the studies was evaluated using the Downs and Black checklist. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were followed for data extraction, analysis, and reporting. RESULTS: Ten studies were included in the final data synthesis of this review. Eight of the reviewed studies supported the utility of TTM to predict or improve medication adherence in patients with chronic conditions, while two studies did not find any significant improvement in medication adherence after using a TTM-based intervention. The Downs and Black checklist revealed the overall methodological quality of the included studies to be fair [mean (SD) = 16.3 (4.5) of a possible maximum score of 28]. CONCLUSION: This systematic review provides an overview of the utility of TTM in predicting and improving medication adherence in patients with chronic conditions. Although TTM-based interventions in patients with low or moderate medication adherence were effective, there were few studies identified, suggesting the need for further research.


Assuntos
Adesão à Medicação , Modelo Transteórico , Doença Crônica , Humanos
17.
J Imaging ; 8(7)2022 Jul 08.
Artigo em Inglês | MEDLINE | ID: mdl-35877633

RESUMO

The state-of-the-art procedure for examining the lymph nodes in a lung cancer patient involves using an endobronchial ultrasound (EBUS) bronchoscope. The EBUS bronchoscope integrates two modalities into one device: (1) videobronchoscopy, which gives video images of the airway walls; and (2) convex-probe EBUS, which gives 2D fan-shaped views of extraluminal structures situated outside the airways. During the procedure, the physician first employs videobronchoscopy to navigate the device through the airways. Next, upon reaching a given node's approximate vicinity, the physician probes the airway walls using EBUS to localize the node. Due to the fact that lymph nodes lie beyond the airways, EBUS is essential for confirming a node's location. Unfortunately, it is well-documented that EBUS is difficult to use. In addition, while new image-guided bronchoscopy systems provide effective guidance for videobronchoscopic navigation, they offer no assistance for guiding EBUS localization. We propose a method for registering a patient's chest CT scan to live surgical EBUS views, thereby facilitating accurate image-guided EBUS bronchoscopy. The method entails an optimization process that registers CT-based virtual EBUS views to live EBUS probe views. Results using lung cancer patient data show that the method correctly registered 28/28 (100%) lymph nodes scanned by EBUS, with a mean registration time of 3.4 s. In addition, the mean position and direction errors of registered sites were 2.2 mm and 11.8∘, respectively. In addition, sensitivity studies show the method's robustness to parameter variations. Lastly, we demonstrate the method's use in an image-guided system designed for guiding both phases of EBUS bronchoscopy.

18.
ATS Sch ; 3(2): 220-228, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35924198

RESUMO

Background: Current medical society guidelines recommend a procedural number for obtaining electromagnetic navigational bronchoscopy (ENB) competency and for institutional volume for training. Objective: To assess learning curves and estimate the number of ENB procedures for interventional pulmonology (IP) fellows to reach competency. Methods: We conducted a prospective multicenter study of IP fellows in the United States learning ENB. A tool previously validated in a similar population was used to assess IP fellows by their local faculty and two blinded independent reviewers using virtual recording of the procedure. Competency was determined by performing three consecutive procedures with a competency score on the assessment tool. Procedural time, faculty global rating scale, and periprocedural complications were also recorded. Results: A total of 184 ENB procedures were available for review with assessment of 26 IP fellows at 16 medical centers. There was a high correlation between the two blinded independent observers (rho = 0.8776). There was substantial agreement for determination of procedural competency between the faculty assessment and blinded reviewers (kappa = 0.7074; confidence interval, 0.5667-0.8482). The number of procedures for reaching competency for ENB bronchoscopy was determined (median, 4; mean, 5; standard deviation, 3.83). There was a wide variation in the number of procedures to reach competency, ranging from 2 to 15 procedures. There were six periprocedural complications reported, four (one pneumomediastinum, three pneumothorax) of which occurred before reaching competence and two pneumothoraces after achieving competence. Conclusion: There is a wide variation in acquiring competency for ENB among IP fellows. Virtual competency assessment has a potential role but needs further studies.

19.
Chest ; 161(3): 614-628, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34774528

RESUMO

BACKGROUND: Bronchial thermoplasty is a device-based treatment for subjects ≥ 18 years of age with severe asthma poorly controlled with inhaled corticosteroids and long-acting beta-agonists. The Post-FDA Approval Clinical Trial Evaluating Bronchial Thermoplasty in Severe Persistent Asthma (PAS2) study collected data on patients with severe asthma undergoing this procedure. RESEARCH QUESTION: What are the 5-year efficacy and safety results in patients with severe asthma who have undergone bronchial thermoplasty? STUDY DESIGN AND METHODS: This was a prospective, open-label, observational, multicenter study conducted in the United States and Canada. Subjects 18 to 65 years of age who were taking inhaled corticosteroids ≥ 1,000 µg/d (beclomethasone or equivalent) and long-acting beta-agonists ≥ 80 µg/d (salmeterol or equivalent) were included. Severe exacerbations, hospitalization, ED visits, and medication usage were evaluated for the 12 months prior to and at years 1 through 5 posttreatment. Spirometry was evaluated at baseline and at years 1 through 5 posttreatment. RESULTS: A total of 284 subjects were enrolled at 27 centers; 227 subjects (80%) completed 5 years of follow-up. By year 5 posttreatment, the proportion of subjects with severe exacerbations, ED visits, and hospitalizations was 42.7%, 7.9%, and 4.8%, respectively, compared with 77.8%, 29.4%, and 16.1% in the 12 months prior to treatment. The proportion of subjects on maintenance oral corticosteroids decreased from 19.4% at baseline to 9.7% at 5 years. Analyses of subgroups based on baseline clinical and biomarker characteristics revealed a statistically significant clinical improvement among all subgroups. INTERPRETATION: Five years after treatment, subjects experienced decreases in severe exacerbations, hospitalizations, ED visits, and corticosteroid exposure. All subgroups demonstrated clinically significant improvement, suggesting that bronchial thermoplasty improves asthma control in different asthma phenotypes. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov; No.: NCT01350336; URL: www. CLINICALTRIALS: gov.


Assuntos
Asma , Termoplastia Brônquica , Corticosteroides/uso terapêutico , Asma/tratamento farmacológico , Asma/cirurgia , Termoplastia Brônquica/métodos , Humanos , Estudos Prospectivos , Qualidade de Vida
20.
Am J Pharm Educ ; 85(1): 7971, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-34281815

RESUMO

Objective. To evaluate student changes in self-directed learning (SDL) in a Pharmacists' Patient Care Process (PPCP) course using adaptive learning technology (ALT).Methods. The Pharmacists' Patient Care Process was delivered using traditional teaching methods in fall 2018 and ALT in spring 2019. First-year student pharmacists were surveyed three times throughout the academic year on SDL factors. Focus groups were conducted at the end of the spring semester to identify perceptions of course delivery. Multilevel linear modeling and qualitative content analysis were used to evaluate survey responses and focus group feedback, respectively.Results. Ninety-two of 106 students completed all three surveys. Scores on stress management and examination management increased from the beginning to the end of the academic year. Scores on seminar (lecture) learning proficiency, procrastination management, and time management decreased from the beginning to the end of the year. Assignment management and comprehension competence trends varied from the end of the first semesters to the end of the second semester. Themes identified from the focus groups were student learning preferences, semester comparisons, value, and technology.Conclusion. Student pharmacists struggled with the integration of ALT into their previously established study routines. Focus groups helped add context to students' SDL scores. Although significant differences were found between some SDL factors, it was not possible to conclude that implementation of ALT improved SDL.


Assuntos
Educação em Farmácia , Estudantes de Farmácia , Currículo , Avaliação Educacional , Humanos , Assistência ao Paciente , Farmacêuticos , Tecnologia
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