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J H Austin 《Radiologic clinics of North America》1984,22(3):687-698
The lateral chest radiograph contains a wealth of data on the status of the thoracic cage, pleura, heart, pericardium, bronchi, and upper abdomen. The appearances of slightly oblique projections deviating from the "true" lateral projection are reviewed. Careful attention to these common variations of projection is advocated. 相似文献
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Matthew S. Austin Blair S. Ashley Nicholas A. Bedard Hari P. Bezwada Charles P. Hannon Yale A. Fillingham Yogesh V. Kolwadkar Harold W. Rees Matthew J. Grosso Erik N. Zeegen 《The Journal of arthroplasty》2021,36(8):2665-2673.e8
BackgroundThe prevalence of total joint arthroplasty (TJA) in the United States has drawn the attention of health care stakeholders. The payers have also used a variety of strategies to regulate the medical necessity of these procedures. The purpose of this study was to examine the level of evidence of the coverage policies being used by commercial payers in the United States.MethodsThe references of the coverage policies of four commercial insurance companies were reviewed for type of document, level of evidence, applicability to a TJA population, and success of nonoperative treatment in patients with severe degenerative joint disease.Results282 documents were reviewed. 45.8% were primary journal articles, 14.2% were level I or II, 41.2% were applicable to patients who were candidates for TJA, and 9.9% discussed the success of nonoperative treatment in patients who would be candidates for TJA.ConclusionMost of the references cited by commercial payers are of a lower level of scientific evidence and not applicable to patients considered to be candidates for TJA. This is relatively uniform across the reviewed payers. The dearth of high-quality literature cited by commercial payers reflects the lack of evidence and difficulty in conducting high level studies on the outcomes of nonoperative versus operative treatment for patients with severe, symptomatic osteoarthritis. Patients, surgeons, and payers would all benefit from such studies and we encourage professional societies to strive toward that end through multicenter collaboration. 相似文献
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Austin Q. Nguyen Michael P. Foy Anshum Sood Mark H. Gonzalez 《The Journal of arthroplasty》2021,36(2):734-738
BackgroundEstablishing clear risk factors for complications such as urinary tract infection (UTI) after arthroplasty procedures helps guide clinical practice and provides more information to both surgeons and patients. This study aims to assess selected preoperative patient characteristics as risk factors for postoperative UTI after primary total hip and knee arthroplasties (THA and TKA).MethodsThis was a retrospective analysis using current procedural terminology codes to investigate the American College of Surgeons National Surgical Quality Improvement Program (NSQIP) database for patients who underwent THA or TKA from 2010 to 2017. Patients were classified for UTI by NSQIP guidelines. Patient samples with all possible covariates were included for multivariate logistic regression analysis and assessed for independent associations.ResultsIn a cohort of 983 identified patients (983 of 119,096; 0.83%): ages 57+ years, preoperative red blood cell (RBC) transfusion, perioperative RBC transfusion, bleeding disorders, operative time 110+ minutes, preoperative steroid use, diabetes, pulmonary comorbidities, body mass index 30+ kg/m2 were independent risk factors for postoperative UTI after THA. In a cohort of 1503 identified patients (1503 of 189,327; 0.8%): ages 60+ years, preoperative RBC transfusion, perioperative RBC transfusion, anemia, platelets less than 150k, preoperative steroid use, diabetes, and body mass index 30+ kg/m2 were independent risk factors for postoperative UTI after TKA. Male sex was associated with a decreased risk of UTI in both THA and TKA.ConclusionThis study provides novel evidence on risk factors associated with the development of UTI after THA or TKA. Clinicians should be aware of risk factors in the manifestation of postoperative UTI after primary THA or TKA procedures. 相似文献
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Linda T. Li Nutan B. Hebballi Eric W. Reynolds Seyed A. Arshad Gabrielle E. Hatton Dalya M. Ferguson Mary T. Austin Kevin P. Lally Kuojen Tsao 《Journal of pediatric surgery》2021,56(7):1113-1116
PurposeRepetitive painful stimuli and early exposure to opioids places neonates at risk for neurocognitive delays. We aimed to understand opioid utilization for neonates with gastroschisis.MethodsWe performed a retrospective review of infants with gastroschisis at a tertiary children's hospital (2017–2019). Multivariate linear regression was performed to analyze variations in opioid use.ResultsAmong 30 patients with gastroschisis, 33% were managed by primary suture-less closure, 7% by primary sutured closure, 40% by spring silo, and 20% by handsewn silo. The proportion of pain medication used was: morphine (89%), acetaminophen (8%), and fentanyl (3%). Opioids were used for a median of 6.5 days (range 0–20) per patient. Median total opioid administered across all patients was 2.2 morphine milligram equivalents (MME)/kg (IQR 0.7–3.3). Following definitive closure, median opioid use was 0.2 MME/kg (IQR 0.1–0.8). With multivariate regression, 45% of the variation in MME use was associated with the type of surgery after adjusting for weight, gestational age, and gender, p = 0.02. After definitive fascial closure, there was no significant variations in opioid use.ConclusionThere is a significant variation in the utilization of opioid, primarily prior to fascial closure. Understanding pain needs and standardization may improve opioid stewardship in infants with gastroschisis. 197/200Level of EvidenceLevel III 相似文献
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Seyed A. Arshad Gabrielle E. Hatton Dalya M. Ferguson Linda T. Li Mary T. Austin KuoJen Tsao 《Journal of pediatric surgery》2021,56(7):1099-1102
PurposePain control is challenging after minimally invasive repair of pectus excavatum (MIRPE). Cryoanalgesia, which temporarily ablates peripheral nerves, improves pain control and may accelerate post-operative recovery. We hypothesized that cryoanalgesia would be associated with shorter length of stay (LOS) in children undergoing MIRPE.MethodsA matched cohort study was conducted of children (<18 years) who underwent MIRPE 2016–2018, using the National Surgical Quality Improvement Program-Pediatric database. Each patient who received cryoanalgesia during MIRPE was matched to four controls (no cryoanalgesia). Univariate and multilevel regression analyses were performed.ResultsThirty-five patients who received cryoanalgesia during MIRPE were matched to 140 controls. Patients who received cryoanalgesia had a LOS reduction with similar secondary outcomes (operative time, rates of complication, reoperation, and readmission). On multilevel regression adjusted for matched groups, cryoanalgesia was associated with a 1.3-day reduction in LOS (95% CI ?1.8 to ?0.8, p < 0.001). On sensitivity analysis excluding patients with complications, cryoanalgesia remained associated with a LOS reduction.ConclusionsCryoanalgesia is a promising adjunct in the care of pediatric patients undergoing MIRPE. Utilization is associated with a shorter LOS without an increase in operative time or complications. Cryoanalgesia should be considered for inclusion in enhanced recovery strategies for patients undergoing MIRPE. 相似文献
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