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1.
J Pediatr Gastroenterol Nutr ; 76(3): e61-e65, 2023 03 01.
Artículo en Inglés | MEDLINE | ID: mdl-36302247

RESUMEN

The nutritional requirements of neonates with congenital abdominal wall defects (AWDs) remain poorly described. In particular, there is a lack of literature on the calorie, protein, and micronutrient needs of those with AWD. Nutritional therapy is a cornerstone of care in patients with burns due to the metabolic consequences of injury to the epithelial layer. Similarly, children with AWD may require specialized nutritional plans to support their growth and wound healing. This case series supports the theory that patients with ruptured omphaloceles may require higher calorie, protein, and micronutrient provisions in comparison to patients with intact omphaloceles, due to increased metabolic demand to support wound healing and skin epithelialization.


Asunto(s)
Hernia Umbilical , Terapia Nutricional , Humanos , Lactante , Recién Nacido , Hernia Umbilical/complicaciones , Hernia Umbilical/cirugía
2.
Dig Dis Sci ; 68(6): 2188-2195, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-36807017

RESUMEN

BACKGROUND: Pouchitis is the most frequent complication following restorative proctocolectomy and ileal pouch anal anastomosis (RP-IPAA) in patients with Ulcerative colitis (UC). Pediatric data on nutritional status during RP-IPAA and in patients with pouchitis are limited. AIMS: We aimed to delineate nutritional changes in children undergoing 2-stage and 3-stage surgeries and to evaluate the association between nutrition and the development of recurrent or chronic pouchitis. METHODS: This single-center retrospective study involved 46 children with UC who underwent a RP-IPAA. Data were collected at each surgical stage and for up to 2-year post-ileostomy takedown. We used Wilcoxon matched-pairs signed-rank test to evaluate the differences in nutritional markers across surgical stages and logistic regression to identify the factors associated with recurrent or chronic pouchitis. RESULTS: Twenty patients (43.5%) developed recurrent or chronic pouchitis. Children who underwent a 3-stage procedure had improvements in albumin, hematocrit, and body mass index (BMI)-for-age Z-scores (p < 0.01) between the first two stages. A positive trend in BMI-for-age Z-scores (p = 0.08) was identified in children with 2-stage procedures. All patients showed sustained nutritional improvement during the follow-up period. Among patients who underwent 3-stage surgeries, BMI worsened by 0.8 standard deviations (SDs) (p = 0.24) between the initial stages in those who developed recurrent or chronic pouchitis and improved by 1.1 SDs (p = 0.04) in those who did not. CONCLUSIONS: Early improvement in BMI-for-age Z-scores following the initial stage was associated with lower rates of recurrent or chronic pouchitis. Larger prospective studies are needed to validate these findings.


Asunto(s)
Colitis Ulcerosa , Reservoritis , Proctocolectomía Restauradora , Humanos , Niño , Reservoritis/etiología , Colitis Ulcerosa/cirugía , Colitis Ulcerosa/complicaciones , Estudios Retrospectivos , Estado Nutricional , Proctocolectomía Restauradora/efectos adversos , Colectomía/efectos adversos
3.
Transfus Apher Sci ; 62(3): 103656, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36863912

RESUMEN

BACKGROUND: The role of caplacizumab in the routine treatment of immune thrombotic thrombocytopenic purpura (iTTP) remains to be established. CASE SUMMARY: A 56-year-old woman was transferred to our center with iTTP and neurologic features. At the outside hospital, she was initially diagnosed and managed as Immune Thrombocytopenia (ITP). Upon transfer to our center, daily plasma exchange, steroids, and rituximab were initiated. After an initial improvement, refractoriness became evident with a decline in platelet count and continued neurologic abnormalities. Initiation of caplacizumab resulted in rapid hematologic and clinical responses. CONCLUSION: Caplacizumab is a valuable treatment modality in iTTP, particularly in cases associated with refractoriness or neurologic features.


Asunto(s)
Púrpura Trombocitopénica Idiopática , Púrpura Trombocitopénica Trombótica , Anticuerpos de Dominio Único , Femenino , Humanos , Persona de Mediana Edad , Púrpura Trombocitopénica Trombótica/tratamiento farmacológico , Recuento de Plaquetas , Rituximab/uso terapéutico , Anticuerpos de Dominio Único/uso terapéutico , Intercambio Plasmático , Púrpura Trombocitopénica Idiopática/tratamiento farmacológico , Proteína ADAMTS13
4.
Med Care ; 60(6): 437-443, 2022 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-35315376

RESUMEN

BACKGROUND: Access to health care continues to be a challenge, especially in remote areas. Since 2013, 70 rural hospitals have closed in the United States further exacerbating barriers to health care access in rural areas. OBJECTIVE: The objective of this study is to identify the impact of rural hospital closures on total medical spending and utilization among the commercially insured rural population. RESEARCH DESIGN: We use a pre-post study design with a comparison group. Individual-level Texas commercial claims data in 2014-2019 were linked to the Centers for Medicare & Medicaid Services (CMS) Provider of Services Current Files, Area Health Resource File, and Census American Community Survey. We performed an event study to test for pre-trends. SUBJECTS: Analysis sample included commercially insured individuals 19-64 years of age residing in Texas. MEASURES: Total medical spending and counts of health care encounters. RESULTS: Individuals residing in rural Texas areas affected by a hospital closure experienced decreases in outpatient and emergency department (ED) utilization and no statistically significant changes in total medical spending relative to the unaffected individuals. Outpatient and ED utilization decreased by 0.133 (<0.1) and 0.015 (7<0.05) visits, respectively. Heterogeneity analysis showed that individuals residing in urban Texas experienced increases in total medical spending by $12.2 per month (<0.01) as well as individual spending subcategories. CONCLUSIONS: Rural hospital closures led to significant decreases in outpatient and ED utilization while having no effect on health care spending. Close attention must be paid to rural hospital closures to ensure equitable health care access, especially for underserved populations.


Asunto(s)
Clausura de las Instituciones de Salud , Hospitales Rurales , Anciano , Servicio de Urgencia en Hospital , Accesibilidad a los Servicios de Salud , Humanos , Medicare , Población Rural , Estados Unidos
5.
Bioorg Chem ; 121: 105676, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-35202850

RESUMEN

A combinatorial method was devised and applied for the design and identification of substrate-analogue inhibitors of therapeutically relevant serine proteases, such as thrombin and factor Xa. We conceptualized imino acid derived diketomorpholines as generally applicable key intermediates prepared through solid-phase synthesis and prone to be cleaved with primary amines in a traceless fashion. The approach led to a compound library whose members were prepared under bioassay-compatible conditions and directly subjected to the in situ evaluation, allowing a fast prediction of hit compounds. Highly active inhibitors for serine proteases of the coagulation cascade have been identified. The most potent dual inhibitor, 16K, has a binding affinity of 23.9 nM to thrombin and 32.8 nM to factor Xa.


Asunto(s)
Factor Xa , Trombina , Factor Xa/química , Inhibidores del Factor Xa , Serina Endopeptidasas/metabolismo , Serina Proteasas , Inhibidores de Serina Proteinasa/química , Inhibidores de Serina Proteinasa/farmacología
6.
Dysphagia ; 37(5): 1305-1313, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-34981254

RESUMEN

Infants with congenital diaphragmatic hernia (CDH) who require non-invasive positive pressure ventilation or high flow nasal cannula are at risk for aspiration and delayed initiation of oral feeding. We developed a dysphagia provider-led protocol that involved early consultation with an occupational therapist or speech/language pathologist and modified barium swallow study (MBSS) to assess for readiness for oral feeding initiation/advancement on non-invasive positive pressure ventilation. The objective of this study was to retrospectively compare this intervention cohort to a historical control cohort to evaluate the protocol's impact on the time to initiate oral feeding. We describe the development and implementation of the protocol, the MBSS findings of the intervention cohort, and compared the control (n = 64) and intervention (n = 37) cohorts using Fischer's exact test and Mann-Whitney test. We found that both cohorts had similar prenatal and neonatal characteristics including age at extubation. Significantly more infants in the intervention cohort were on non-invasive positive pressure ventilation or high flow nasal cannula at the time of oral feeding initiation (84% vs. 28%, p < 0.0001). None of the control cohort infants underwent MBSS while on respiratory support. Of the intervention cohort, 15 infants underwent a MBSS while on non-invasive positive pressure ventilation; 6 had no evidence of laryngeal penetration and/or aspiration during swallowing. Infants in the control cohort initiated oral feeds significantly sooner after extubation (6 versus 11 days, p = 0.001) and attained full oral feeds earlier (20 days versus 28 days, p = 0.02) than the intervention group. There was no difference in the rate of gastrostomy tube placement (38%). Appropriate monitoring by a dysphagia provider and evaluation with clinical and radiological means are crucial to determine the safety of initiating oral feeding in term infants with CDH. Continued surveillance is needed to determine the long-term impact on oral feeding progression in this population.


Asunto(s)
Trastornos de Deglución , Hernias Diafragmáticas Congénitas , Deglución , Trastornos de Deglución/epidemiología , Trastornos de Deglución/etiología , Trastornos de Deglución/terapia , Hernias Diafragmáticas Congénitas/complicaciones , Humanos , Lactante , Recién Nacido , Respiración con Presión Positiva/métodos , Estudios Retrospectivos
7.
J Pediatr Gastroenterol Nutr ; 73(4): 555-559, 2021 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-34117194

RESUMEN

OBJECTIVES: A third of infants with congenital diaphragmatic hernia (CDH) require a gastrostomy tube (GT) for nutritional support. We compared CDH infants who are GT-dependent to those able to meet their nutritional needs orally, to identify factors associated with requiring a GT and evaluate their long-term growth. METHODS: Patients with CDH repaired at a single institution between 2012 and 2020 were included. Charts were retrospectively reviewed for demographic, surgical, and post-operative details. Mann-Whitney test and Fischer exact test were performed to compare GT-dependent neonates (n = 38, experimental) with orally fed neonates (n = 63, control). Significance was set at <0.05. RESULTS: Thirty-eight percent received a GT (median 67 days, interquartile range [IQR] 50-88). GT-dependent neonates were significantly more likely to have a lower lung-to-head ratio (median 1.2, IQR 0.9-1.4, vs 1.6, IQR 1.3-2.0, IQR P < 0.0001), undergone patch or flap repair (79% vs 33%, P < 0.0001), and been hospitalized longer (median 47, IQR 24-75 vs 28 days, P < 0.0001). Fourteen of 38 had their GT removed (median 26 months, IQR 14-36). GT-dependent neonates initiated oral feeds (calculated as time since extubation) later (median 21, IQR 8-26, vs 8 days, IQR 4-13, P = 0.006). Height-for-age z scores remained stable after GT removal, while weight-for-age z scores dropped initially and began improving a year later. CONCLUSIONS: The need for a gastrostomy for nutritional support is associated with more severe CDH. Over a third of patients no longer needed a GT at a median of 26 months. Linear growth generally remains stable after removal. These results may help counsel parents regarding nutritional expectations.


Asunto(s)
Hernias Diafragmáticas Congénitas , Gastrostomía , Hernias Diafragmáticas Congénitas/cirugía , Humanos , Lactante , Recién Nacido , Pulmón , Periodo Posoperatorio , Estudios Retrospectivos
8.
Angew Chem Int Ed Engl ; 60(18): 10423-10429, 2021 04 26.
Artículo en Inglés | MEDLINE | ID: mdl-33655614

RESUMEN

The main protease of SARS-CoV-2 (Mpro ), the causative agent of COVID-19, constitutes a significant drug target. A new fluorogenic substrate was kinetically compared to an internally quenched fluorescent peptide and shown to be ideally suitable for high throughput screening with recombinantly expressed Mpro . Two classes of protease inhibitors, azanitriles and pyridyl esters, were identified, optimized and subjected to in-depth biochemical characterization. Tailored peptides equipped with the unique azanitrile warhead exhibited concomitant inhibition of Mpro and cathepsin L, a protease relevant for viral cell entry. Pyridyl indole esters were analyzed by a positional scanning. Our focused approach towards Mpro inhibitors proved to be superior to virtual screening. With two irreversible inhibitors, azanitrile 8 (kinac /Ki =37 500 m-1 s-1 , Ki =24.0 nm) and pyridyl ester 17 (kinac /Ki =29 100 m-1 s-1 , Ki =10.0 nm), promising drug candidates for further development have been discovered.


Asunto(s)
Antivirales/farmacología , Tratamiento Farmacológico de COVID-19 , Proteasas 3C de Coronavirus/antagonistas & inhibidores , Nitrilos/farmacología , Inhibidores de Proteasas/farmacología , SARS-CoV-2/efectos de los fármacos , Antivirales/química , COVID-19/metabolismo , COVID-19/virología , Proteasas 3C de Coronavirus/metabolismo , Diseño de Fármacos , Descubrimiento de Drogas , Células HEK293 , Ensayos Analíticos de Alto Rendimiento , Humanos , Simulación del Acoplamiento Molecular , Nitrilos/química , Inhibidores de Proteasas/química , Piridinas/química , Piridinas/farmacología , SARS-CoV-2/enzimología , SARS-CoV-2/fisiología , Internalización del Virus/efectos de los fármacos
9.
J Gen Intern Med ; 35(3): 649-655, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31482340

RESUMEN

BACKGROUND: Recent studies that compared patient spending in hospital-owned physician practices versus physician-owned groups did not compare quality of care. Past studies had incomplete measures of physician-hospital integration, or lacked patient-level data. OBJECTIVE: To measure the association between physician-hospital integration and both spending and quality using patient-level data and explicit physician-hospital contracting information. DESIGN: Retrospective review of claims data from 2014 through 2016. Adjustments were made for patient, physician, and regional characteristics. PATIENTS: Patients aged 19 to 64 enrolled in a Blue Cross Blue Shield Texas Preferred Provider Organization in the four largest metropolitan areas in Texas who could be attributed to a physician practice based on claims. MAIN OUTCOMES AND MEASURES: Annual spending per patient was compared for patients treated by a physician practice that is billing through a hospital, versus billing through an independent physician practice; spending was also subdivided by BETOS category, by site and type of care, and percent of patients with positive spending by subcategory. Quality measures included readmission within 30 days of discharge for hospitalized patients, appropriate care for diabetic patients, and screening mammography for women ages 50-64. RESULTS: Estimates suggest that patients in a preferred provider organization incur spending which is 5.8 percentage points higher when treated by doctors in hospital-owned versus physician-owned practices (95% CI 1.7 to 9.9; p = 0.006). Spending is significantly higher for durable medical equipment, imaging, unclassified services, and outpatient care. The spending difference appears attributable to greater service utilization rather than higher prices. There was no consistent difference in care quality for hospital-owned versus physician-owned practices. CONCLUSIONS AND RELEVANCE: We find that financial integration between physicians and hospitals raises patient spending, but not care quality. Given that higher spending raises the price of health insurance, policy makers should carefully consider policies that limit consolidation of hospitals and physicians.


Asunto(s)
Neoplasias de la Mama , Detección Precoz del Cáncer , Gastos en Salud , Hospitales , Propiedad , Médicos , Adulto , Economía Hospitalaria , Femenino , Humanos , Mamografía , Persona de Mediana Edad , Calidad de la Atención de Salud , Estudios Retrospectivos , Texas , Estados Unidos , Adulto Joven
10.
Anesth Analg ; 130(2): 409-415, 2020 02.
Artículo en Inglés | MEDLINE | ID: mdl-30489313

RESUMEN

BACKGROUND: Minimally invasive fetal surgery is commonly performed to treat twin-to-twin transfusion syndrome with selective fetoscopic laser photocoagulation and twin-reversed arterial perfusion sequence using radiofrequency ablation. Although an increasing number of centers worldwide are performing these procedures, anesthetic management varies. Both neuraxial anesthesia and monitored anesthesia care with local anesthesia are used at different institutions. We sought to determine the efficacy and outcomes of these 2 anesthetic techniques for fetal procedures at our institution. METHODS: All patients undergoing minimally invasive fetal surgery for twin-to-twin transfusion syndrome or twin-reversed arterial perfusion sequence over a 6-year time period (2011-2016) were reviewed. Patients receiving monitored anesthesia care with local anesthesia were compared with those receiving spinal anesthesia in both selective fetoscopic laser photocoagulation and radiofrequency ablation fetal procedures. The primary outcome examined between the monitored anesthesia care and spinal anesthesia groups was the difference in conversion to general anesthesia using a noninferiority design with a noninferiority margin of 5%. Secondary outcome measures included use of vasopressors, procedure times, intraoperative fluids administered, maternal complications, and unexpected fetal demise within 24 hours of surgery. RESULTS: The difference in failure rate between monitored anesthesia care and spinal was -0.5% (95% CI, -4.8% to 3.7%). Patients receiving monitored anesthesia care plus local anesthesia were significantly less likely to need vasopressors, had a shorter presurgical operating room time, and received less fluid (P < .001). Operative time did not differ significantly. CONCLUSIONS: Monitored anesthesia care plus local anesthesia is a reliable and safe anesthetic choice for minimally invasive fetal surgery. Furthermore, it decreases maternal hemodynamic instability and reduces preincision operating room time.


Asunto(s)
Anestesia Local/métodos , Anestesia Raquidea/métodos , Transfusión Feto-Fetal/cirugía , Fetoscopía/métodos , Procedimientos Quirúrgicos Mínimamente Invasivos/métodos , Monitoreo Intraoperatorio/métodos , Adulto , Anestesia Local/normas , Anestesia Raquidea/normas , Femenino , Transfusión Feto-Fetal/diagnóstico por imagen , Fetoscopía/normas , Humanos , Procedimientos Quirúrgicos Mínimamente Invasivos/normas , Monitoreo Intraoperatorio/normas , Embarazo , Ablación por Radiofrecuencia/métodos , Ablación por Radiofrecuencia/normas , Estudios Retrospectivos
11.
Pain Med ; 21(10): 2219-2228, 2020 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-32191316

RESUMEN

OBJECTIVE: To assess the generalizability of the overdose or serious opioid-induced respiratory depression risk index (VHA-RIOSORD), created by Zedler et al., using claims data from a large private insurer. DESIGN: A retrospective nested case-control analysis of health care claims data. SUBJECTS: Commercially insured individuals with a claim for an opioid prescription between October 1, 2014, and September 30, 2016 (N = 1,431,737). METHODS: An overdose or serious opioid-induced respiratory depression (OSORD) occurred in 1,097 patients. Ten controls were selected per case (N = 10,970). Items and the assignment of point values to predictors were consistent with those determined by Zedler et al. Modeling of risk index scores produced predicted probabilities of OSORD; risk classes were defined by the predicted probability distribution. RESULTS: All 15 items of the VHA-RIOSORD were used to determine a member's risk of OSORD. The average predicted probability of experiencing OSORD ranged from 3% in the lowest risk decile to 90% in the highest, with excellent agreement between predicted and observed incidence across risk classes. The model's C-statistic was 0.88. CONCLUSIONS: Consistent with the findings of its developers, the VHA-RIOSORD performed well in identifying members of a large private insurance company who were medical users of prescription opioids at elevated risk of overdose or life-threatening respiratory depression, those most likely to benefit from preventive interventions.


Asunto(s)
Sobredosis de Droga , Insuficiencia Respiratoria , Analgésicos Opioides/efectos adversos , Sobredosis de Droga/tratamiento farmacológico , Sobredosis de Droga/epidemiología , Humanos , Seguro de Salud , Prescripciones , Insuficiencia Respiratoria/inducido químicamente , Insuficiencia Respiratoria/epidemiología , Estudios Retrospectivos
12.
Radiology ; 290(2): 400-409, 2019 02.
Artículo en Inglés | MEDLINE | ID: mdl-30480489

RESUMEN

Purpose To evaluate colorectal cancer hepatic metastasis detection and characterization between reduced radiation dose (RD) and standard dose (SD) contrast material-enhanced CT of the abdomen and to qualitatively compare between filtered back projection (FBP) and iterative reconstruction algorithms. Materials and Methods In this prospective study (from May 2017 through November 2017), 52 adults with biopsy-proven colorectal cancer and suspected hepatic metastases at baseline CT underwent two portal venous phase CT scans: SD and RD in the same breath hold. Three radiologists, blinded to examination details, performed detection and characterization of 2-15-mm lesions on the SD FBP and RD adaptive statistical iterative reconstruction (ASIR)-V 60% series images. Readers assessed overall image quality and lesions between SD FBP and seven different iterative reconstructions. Two nonblinded consensus reviewers established the reference standard using the picture archiving and communication system lesion marks of each reader, multiple comparison examinations, and clinical data. Results RD CT resulted in a mean dose reduction of 54% compared with SD. Of the 260 lesions (233 metastatic, 27 benign), 212 (82%; 95% confidence interval [CI]: 76%, 86%) were detected with RD CT, whereas 252 (97%; 95% CI: 94%, 99%) were detected with SD (P < .001); per-lesion sensitivity was 79% (95% CI: 74%, 84%) and 94% (95% CI: 90%, 96%) (P < .001), respectively. Mean qualitative scores ranked SD images as higher quality than RD series images, and ASIR-V ranked higher than ASIR and Veo 3.0. Conclusion CT evaluation of colorectal liver metastases is compromised with modest radiation dose reduction, and the use of iterative reconstructions could not maintain observer performance. © RSNA, 2018.


Asunto(s)
Neoplasias Colorrectales/patología , Neoplasias Hepáticas/diagnóstico por imagen , Neoplasias Hepáticas/secundario , Tomografía Computarizada por Rayos X/métodos , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Hígado/diagnóstico por imagen , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Dosis de Radiación , Adulto Joven
14.
J Comput Assist Tomogr ; 43(1): 155-162, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30211799

RESUMEN

OBJECTIVE: This study aimed to evaluate the quality of enhancement and solid-organ lesion depiction using weight-based intravenous (IV) contrast dosing calculated by injector software versus fixed IV contrast dose in oncologic abdominal computed tomographic (CT) examinations. METHODS: This institutional review board-exempt retrospective cohort study included 134 patients who underwent single-phase abdominal CT before and after implementation of weight-based IV contrast injector software. Patient weight, height, body mass index, and body surface area were determined. Two radiologists qualitatively assessed examinations (4 indicating markedly superior to -4 indicating markedly inferior), and Hounsfield unit measurements were performed. RESULTS: Enhancement (estimated mean, -0.05; 95% confidence interval [CI], -0.19 to 0.09; P = 0.46) and lesion depiction (estimated mean, -0.01; 95% CI, -0.10 to 0.07; P = 0.79) scores did not differ between CT examinations using weight-based IV contrast versus fixed IV contrast dosing when a minimum of 38.5 g of iodine was used. However, the scores using weight-based IV contrast dosing were lower when the injector software calculated and delivered less than 38.5 g of iodine (estimated mean, -0.81; 95% CI, -1.06 to -0.56; P < 0.0001). There were no significant differences in measured Hounsfield units between the CT examinations using weight-based IV contrast dosing versus fixed IV contrast dosing. CONCLUSIONS: Oncologic CT image quality was maintained or improved with weight-based IV contrast dosing using injector software when using a minimum amount of 38.5 g of iodine.


Asunto(s)
Cavidad Abdominal/diagnóstico por imagen , Peso Corporal , Medios de Contraste/administración & dosificación , Neoplasias/diagnóstico por imagen , Intensificación de Imagen Radiográfica/métodos , Tomografía Computarizada por Rayos X/métodos , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Relación Dosis-Respuesta a Droga , Femenino , Humanos , Masculino , Persona de Mediana Edad , Reproducibilidad de los Resultados , Estudios Retrospectivos , Atención Terciaria de Salud , Adulto Joven
15.
J Emerg Med ; 56(3): 352-358, 2019 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-30638646

RESUMEN

BACKGROUND: Freestanding emergency departments (FSEDs), EDs not attached to acute care hospitals, are expanding. One key question is whether FSEDs are more similar to higher-cost hospital-based EDs or to lower-cost urgent care centers (UCCs). OBJECTIVE: Our aim was to determine whether there was a change in patient population, conditions managed, and reimbursement among three facilities that converted from a UCC to an FSED. METHODS: Using insurance claims from Blue Cross Blue Shield of Texas, we compared outcomes of interest for three facilities that converted from a UCC to an FSED for 1 year before and after conversion. RESULTS: There was no significant change in age, sex, and comorbidities among patients treated after conversion. Conditions were similar after conversion, though there was a small increase in visits for potentially more severe conditions. For example, the most common diagnoses before and after conversion were upper respiratory infections (42.8% of UCC visits, 26.0% of FSED visits), while chest pain increased from rank 30 to 10 (0.5% of UCC visits, 2.3% of FSED visits). Yearly number of visits decreased after conversion, while median reimbursement per visit increased (facility A: $148 to $2,153; facility B: $137 to $1,466; and facility C: $131 to $1,925) and total revenue increased (facility A: $1,389,590 to $1,486,203; facility B: $896,591 to $4,294,636; and facility C: $637,585 to $8,429,828). CONCLUSIONS: After three UCCs converted to FSEDs, patient volume decreased and reimbursement per visit increased, despite no change in patient characteristics and little change in conditions managed. These case studies suggest that some FSEDs are similar to UCCs in patient mix and conditions treated.


Asunto(s)
Atención Ambulatoria/organización & administración , Servicio de Urgencia en Hospital/organización & administración , Reembolso de Seguro de Salud/estadística & datos numéricos , Innovación Organizacional , Vigilancia de la Población/métodos , Atención Ambulatoria/economía , Atención Ambulatoria/estadística & datos numéricos , Servicio de Urgencia en Hospital/economía , Servicio de Urgencia en Hospital/estadística & datos numéricos , Humanos , Reembolso de Seguro de Salud/economía , Texas
16.
J Virol ; 91(24)2017 12 15.
Artículo en Inglés | MEDLINE | ID: mdl-28978713

RESUMEN

HIV-1-infected macrophages participate in virus dissemination and establishment of virus reservoirs in host tissues, but the mechanisms for virus cell-to-cell transfer to macrophages remain unknown. Here, we reveal the mechanisms for cell-to-cell transfer from infected T cells to macrophages and virus spreading between macrophages. We show that contacts between infected T lymphocytes and macrophages lead to cell fusion for the fast and massive transfer of CCR5-tropic viruses to macrophages. Through the merge of viral material between T cells and macrophages, these newly formed lymphocyte-macrophage fused cells acquire the ability to fuse with neighboring noninfected macrophages. Together, these two-step envelope-dependent cell fusion processes lead to the formation of highly virus-productive multinucleated giant cells reminiscent of the infected multinucleated giant macrophages detected in HIV-1-infected patients and simian immunodeficiency virus-infected macaques. These mechanisms represent an original mode of virus transmission for viral spreading and a new model for the formation of macrophage virus reservoirs during infection.IMPORTANCE We reveal a very efficient mechanism involved in cell-to-cell transfer from infected T cells to macrophages and subsequent virus spreading between macrophages by a two-step cell fusion process. Infected T cells first establish contacts and fuse with macrophage targets. The newly formed lymphocyte-macrophage fused cells then acquire the ability to fuse with surrounding uninfected macrophages, leading to the formation of infected multinucleated giant cells that can survive for a long time, as evidenced in vivo in lymphoid organs and the central nervous system. This route of infection may be a major determinant for virus dissemination and the formation of macrophage virus reservoirs in host tissues during HIV-1 infection.


Asunto(s)
Linfocitos T CD4-Positivos/citología , Células Gigantes/virología , Infecciones por VIH/inmunología , VIH-1/fisiología , Macrófagos/citología , Animales , Linfocitos T CD4-Positivos/virología , Fusión Celular , Línea Celular , Células Gigantes/citología , Células HEK293 , VIH-1/patogenicidad , Humanos , Células Jurkat , Macaca mulatta , Macrófagos/virología , Virus de la Inmunodeficiencia de los Simios/patogenicidad , Virus de la Inmunodeficiencia de los Simios/fisiología
17.
Pediatr Surg Int ; 34(1): 63-69, 2018 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-29124403

RESUMEN

PURPOSE: We describe our experience using a modified suture fistula technique for addressing tension in longer gap esophageal atresia (EA). Esophagoesophagopexy (EEP) is the tacking of the proximal and distal ends of esophageal pouches without formal anastomosis. In this retrospective cohort, we review the outcomes of patients with EA after EEP. METHODS: We reviewed the operative reports of EA cases treated at our institution from 1997 to 2016 and identified all patients described as having EEP. RESULTS: Of 129 EA cases, five patients underwent EEP. Formal anastomosis was not done due to patient's instability, prematurity, or long gap. Median birth weight was 1.4 kg (0.6-2.2 kg), and median gestational age at birth was 29 weeks (25-34 weeks). Age at time of EEP ranged 0-5 months. Esophagoesophageal fistula was confirmed in three patients. All three had strictures requiring weekly dilations. One of these patients died. The two surviving patients underwent fundoplication. CONCLUSION: We describe an alternative technique for esophageal anastomosis in patients for whom a standard anastomosis is not possible. EEP can lead to a functional anastomosis through fistulization and avoid the morbidity of multiple thoracotomies and lengthening procedures. Families should be educated on the potential need for dilations and antireflux procedures.


Asunto(s)
Atresia Esofágica/cirugía , Esófago/cirugía , Estudios de Cohortes , Dilatación , Fístula Esofágica/etiología , Fístula Esofágica/cirugía , Femenino , Fundoplicación , Humanos , Lactante , Recién Nacido , Masculino , Complicaciones Posoperatorias , Estudios Retrospectivos
18.
Fetal Diagn Ther ; 43(4): 274-283, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-28848121

RESUMEN

INTRODUCTION: Umbilical artery (UA) Doppler ultrasound is used to assess uteroplacental insufficiency. Absent or reversed end diastolic flow (AREDF) in the UA is associated with increased perinatal mortality in fetuses with intrauterine growth restriction. We describe the incidence of UA Doppler abnormalities during open fetal surgery. METHODS: We conducted a retrospective review of patients undergoing open in utero myelomeningocele (MMC) repair between 2008 and 2015. Intermittent UA Dopplers were performed during key portions of all cases. Our primary outcome was the rate of any AREDF. Secondary outcomes included analysis of absent versus reversed end diastolic flow (EDF), vasopressor use, and volatile anesthetic and clinical outcomes. RESULTS: Thirty-four of 47 fetuses developed UA Doppler abnormalities intraoperatively. Nineteen had absent EDF and 15 had reversed EDF. No AREDF was present before induction, and all AREDF resolved by postoperative day 1. Ten of 19 (52.6%) patients who received sevoflurane had reversed EDF, versus 5/28 (17.9%) for desflurane, odds ratio (95% CI) 5.11 (1.36-19.16), p = 0.02. One intraoperative fetal death occurred in the AREDF group. DISCUSSION: AREDF is a common phenomenon during open MMC repair. Anesthetic agent choice may influence this risk. Future studies of UA flow during fetal surgery are needed to further evaluate the impact of intraoperative AREDF on fetal well-being.


Asunto(s)
Feto/cirugía , Meningomielocele/cirugía , Insuficiencia Placentaria/epidemiología , Arterias Umbilicales/diagnóstico por imagen , Adulto , Velocidad del Flujo Sanguíneo , Femenino , Humanos , Incidencia , Complicaciones Intraoperatorias/diagnóstico por imagen , Complicaciones Intraoperatorias/epidemiología , Complicaciones Intraoperatorias/terapia , Insuficiencia Placentaria/diagnóstico por imagen , Insuficiencia Placentaria/terapia , Embarazo , Estudios Retrospectivos , Ultrasonografía Doppler
19.
J Public Health Manag Pract ; 24 Suppl 2: S3-S8, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29369251

RESUMEN

CONTEXT: Vietnam still applies the opportunistic cytology-based screening model, which failed to have an impact on the increasing burden of cervical cancer in Vietnam. OBJECTIVES: To pilot a community-based screening model for cervical cancer using visual inspection with acetic acid (VIA) in Vietnam by training midwife and assistant physician working at grassroots level of health care system. DESIGN: The study employed a pre-experimental design. SETTING: Cases from 2 provinces of Vietnam. PARTICIPANTS: The study trained 36 assistant physicians/midwives working at commune health centers to do VIA screening for cervical cancer and provided screening services for 1945 women 30 to 65 years of age. INTERVENTION: The pilot intervention had 2 aims: train health care workers to do VIA screening and assess the quality of screening services provided by the trained staffs by examining the diagnostics value of VIA. RESULTS: All selected health care workers were able to perform VIA screening method after training. Their VIA services had high diagnostic value: positive predicted value of 11.5% and negative predicted value of 99%; for the detection of cervical intraepithelial neoplasia (CIN) 2, the sensitivity of VIA is 100%, specificity of 67.0%, positive predicted value of 5.7%, and negative predicted value of 100%; for the detection of CIN 3, the sensitivity of VIA is 100%, specificity of 66.5%, positive predicted value of 3.8%, and negative predicted value of 100%. The diagnostic value of VIA is comparable with Papanicolaou test but requires far fewer resources and suitable with community-based setting. CONCLUSION: Local midwives and assistant physicians who currently work at commune health centers and district health centers can be trained to do VIA efficiently. Regarding to implications for policy and practice, VIA can offer significant advantages over Papanicolaou test in low-resource settings like Vietnam, particularly in terms of increased screening coverage, improved follow-up care, and overall program quality.


Asunto(s)
Ácido Acético/uso terapéutico , Técnicas Citológicas/métodos , Tamizaje Masivo/métodos , Neoplasias del Cuello Uterino/diagnóstico , Adulto , Anciano , Servicios de Salud Comunitaria/métodos , Servicios de Salud Comunitaria/normas , Detección Precoz del Cáncer/métodos , Femenino , Humanos , Tamizaje Masivo/normas , Persona de Mediana Edad , Proyectos Piloto , Frotis Vaginal/métodos , Vietnam
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