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1.
N Engl J Med ; 384(19): 1789-1799, 2021 05 13.
Artículo en Inglés | MEDLINE | ID: mdl-33979487

RESUMEN

BACKGROUND: Official recommendations differ regarding tympanostomy-tube placement for children with recurrent acute otitis media. METHODS: We randomly assigned children 6 to 35 months of age who had had at least three episodes of acute otitis media within 6 months, or at least four episodes within 12 months with at least one episode within the preceding 6 months, to either undergo tympanostomy-tube placement or receive medical management involving episodic antimicrobial treatment. The primary outcome was the mean number of episodes of acute otitis media per child-year (rate) during a 2-year period. RESULTS: In our main, intention-to-treat analysis, the rate (±SE) of episodes of acute otitis media per child-year during a 2-year period was 1.48±0.08 in the tympanostomy-tube group and 1.56±0.08 in the medical-management group (P = 0.66). Because 10% of the children in the tympanostomy-tube group did not undergo tympanostomy-tube placement and 16% of the children in the medical-management group underwent tympanostomy-tube placement at parental request, we conducted a per-protocol analysis, which gave corresponding episode rates of 1.47±0.08 and 1.72±0.11, respectively. Among secondary outcomes in the main analysis, results were mixed. Favoring tympanostomy-tube placement were the time to a first episode of acute otitis media, various episode-related clinical findings, and the percentage of children meeting specified criteria for treatment failure. Favoring medical management was children's cumulative number of days with otorrhea. Outcomes that did not show substantial differences included the frequency distribution of episodes of acute otitis media, the percentage of episodes considered to be severe, and antimicrobial resistance among respiratory isolates. Trial-related adverse events were limited to those included among the secondary outcomes of the trial. CONCLUSIONS: Among children 6 to 35 months of age with recurrent acute otitis media, the rate of episodes of acute otitis media during a 2-year period was not significantly lower with tympanostomy-tube placement than with medical management. (Funded by the National Institute on Deafness and Other Communication Disorders and others; ClinicalTrials.gov number, NCT02567825.).


Asunto(s)
Antibacterianos/uso terapéutico , Ventilación del Oído Medio , Otitis Media/tratamiento farmacológico , Otitis Media/cirugía , Enfermedad Aguda , Antibacterianos/efectos adversos , Preescolar , Farmacorresistencia Bacteriana , Femenino , Humanos , Lactante , Análisis de Intención de Tratar , Estimación de Kaplan-Meier , Masculino , Otitis Media con Derrame , Calidad de Vida , Recurrencia
2.
Am J Otolaryngol ; 45(6): 104470, 2024 Aug 02.
Artículo en Inglés | MEDLINE | ID: mdl-39111023

RESUMEN

OBJECTIVE: Periodic fever, aphthous stomatitis, pharyngitis, and cervical adenitis (PFAPA) syndrome is the most common periodic fever syndrome in children. Tonsillectomy is considered a potential treatment option. A common concept is that patients with PFAPA are more likely to have postoperative fever, which might be hard to distinguish from other etiologies such as malignant hyperthermia or drug adverse effects. For this reason, many institutions require these patients to be cared for at their main center and not at satellite centers. Our objective was to evaluate the rate of immediate postoperative fever in PFAPA patients undergoing tonsillectomy. MATERIAL AND METHODS: Following IRB approval (STUDY20060029), a retrospective chart review of all PFAPA patients who underwent tonsillectomy at a tertiary children's hospital between January 1st, 2013, and September 30th, 2022. The PHIS database was queried from January 1st, 2013, to June 30th, 2022, for pediatric tonsillectomy and PFAPA. RESULTS: Sixty-one patients underwent tonsillectomy for PFAPA during the study period at our institution. Only one (1.6 %) had immediate postoperative fever. Fever episode resolution was seen in 90.25 % of patients, 41/41 (100 %) of the patients reported fever episodes pre-op, compared with 4/41 (9.75 %) post-op (McNemar's Chi-squared test, Chi2 = 37.0, p < 0.001). 481,118 pediatric tonsillectomies were recorded in the PHIS database during this period, 1197 (0.25 %) were also diagnosed with PFAPA. None of the PFAPA patients had an immediate post-operative fever. CONCLUSIONS: Our results suggest there is no increased risk of immediate postoperative fever in PFAPA patients undergoing tonsillectomy.

3.
Am J Otolaryngol ; 45(3): 104219, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38346371

RESUMEN

OBJECTIVE: The objective of the current study is to perform a systematic review of the research literature to evaluate the impact of hearing loss on intelligence quotient (IQ) scores in pediatric patients. DATA SOURCES: Ovid MEDLINE, EMBASE, CINAHL, and Cochrane Central Register of Controlled Trials (CENTRAL) databases were searched from their inception up to December 21st, 2021. REVIEW METHODS: Studies evaluating neurocognitive testing and hearing loss in children aged 21 years old or younger who had not undergone auditory rehabilitation were included in the study. Two independent reviewers evaluated titles, abstracts, and full texts for all included studies. RESULTS: The literature search yielded 3199 studies of which 431 studies underwent full-text screening. 21 studies were ultimately selected for inclusion and contained a total of 1716 pediatric patients assessed through 13 different validated tests of intelligence. Six studies included both hearing impaired (HI) and normal hearing (NH) patients, and IQ testing results. CONCLUSION: The results of this large systematic review demonstrate that hearing impaired children may perform lower than their age-matched normal hearing peers on IQ testing across a battery of IQ testing modalities.


Asunto(s)
Pérdida Auditiva , Pruebas de Inteligencia , Humanos , Niño , Pérdida Auditiva/diagnóstico , Adolescente , Preescolar , Masculino , Femenino , Inteligencia , Adulto Joven
4.
Ann Plast Surg ; 2024 Sep 16.
Artículo en Inglés | MEDLINE | ID: mdl-39293051

RESUMEN

INTRODUCTION: This study investigates the intersection of ballistic injuries, geography, and Area Deprivation Index (ADI). We hypothesized that both ADI and geography are correlated with incidence of upper extremity ballistic injuries. Further, we characterize and compare 2 distinct upper extremity gunshot injury populations presenting to our institution: those sustaining violent ballistic injuries and those who suffer an accidental, self-inflicted injury. Our purpose is to evaluate the impact of geography and ADI on the pattern of upper extremity gunshot injuries in Illinois and Missouri. MATERIALS AND METHODS: This was a retrospective review of adult patients sustaining ballistic injury to the upper extremity at a single urban level I trauma center over 10 years (n = 797). Seven hundred thirty patients had home addresses in Illinois or Missouri; these addresses were geocoded and included for analysis. Mechanism of injury was self-reported. ADI was measured from the 2019 Neighborhood Atlas, in which deprivation increases from 1 to 100. Comparisons between groups were conducted with unpaired t tests, Fisher exact test, or χ2 testing, where appropriate. RESULTS: Addresses constituted 259 unique census tracts, and the average number of upper extremity gunshot wound incidents per tract was 3, with a maximum of 22; 15.4% of census block tracts made up almost half (48.4%) of the total ballistic injuries in the study period; 97.7% of violent injuries occurred in Urban areas, as compared with only 60% of accidental injuries (P < 0.05). ADI and incidence of upper extremity ballistic injury were positively correlated. ADI varied significantly between patients sustaining violent (median, 94; mean, 86.1) versus accidental self-inflicted (median, 79; mean, 70.9) injuries (P < 0.05). Fifty percent of violent injuries in our data set occurred in block groups from the 2 most deprived quintiles. CONCLUSIONS: Upper extremity gunshot wounds in general are concentrated in census blocks with high ADI. Violent injuries in particular are more likely to occur in urban areas with high ADI, whereas patients with accidental, self-inflicted injuries are more geographically and socioeconomically diverse. These differing populations require unique approaches to reduce incidence and morbidity.

5.
Aesthet Surg J ; 2024 Sep 24.
Artículo en Inglés | MEDLINE | ID: mdl-39316008

RESUMEN

BACKGROUND: Deoxycholic acid (ATX-101) is a drug administered by subcutaneous injection for local fat reduction. However, ATX-101 treatment has been reported to cause marginal mandibular nerve injury with noticeable functional deficits when targeting submental fat. As a cytolytic agent with some selectivity for adipocytes, ATX-101 may damage the lipid-rich myelin surrounding peripheral nerves. OBJECTIVES: This study seeks to characterize the nerve injection injury from ATX-101 in an experimental rat model. METHODS: Using a rat sciatic nerve injection model, intrafascicular and extrafascicular injections of deoxycholic acid (ATX-101) were compared to lidocaine (positive control) and saline (negative control). Nerves were harvested at a 2-week endpoint for histomorphometric analysis. RESULTS: Cross-sectional area of nerve injury was significantly increased by ATX-101 injection at 75±15% with intrafascicular ATX-101 (p<0.001), 41±21% with extrafascicular ATX-101 (p<0.01), and 38±20% with positive control lidocaine (p<0.01) compared to 7±13% with negative control saline. Demyelinating injury was a significant mechanism of injury in the affected nerve fibers compared to uninjured nerve fibers (p<0.04), but there was no difference in axon-to-myelin area ratio between the lidocaine and ATX-101 cohorts. After two weeks, Wallerian degeneration was evident with only small regenerating nerve fibers present in the ATX-101-injured groups compared to saline (2.54±0.26um vs 5.03±0.44um, p<0.001) in average width. CONCLUSIONS: Deoxycholic acid (ATX-101) is capable of extensive nerve injury in rats. The mechanism of action for ATX-101 does not preferentially target myelin more than other common neurotoxic agents. Appropriate knowledge of surgical anatomy and injection technique is necessary for any practitioners providing ATX-101 injections.

6.
Am J Otolaryngol ; 44(4): 103845, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36963235

RESUMEN

PURPOSE: Assess practice patterns amongst pediatric otolaryngologist for the management of children with SSNHL. MATERIALS AND METHODS: A cross-sectional online survey of members of the American Society of Pediatric Otolaryngology (ASPO) was performed; 135 responded. Patterns in treatment modalities, ancillary tests, and timing of treatment and follow-up were evaluated. These patterns were compared between respondents with different characteristics (number of years in practice, clinic location, and number of pediatric SSNHL cases within the last year) using ordered logistic regression, Kruskal-Wallis, Wilcoxon rank-sum, and Fisher's exact tests. RESULTS: Mean time from onset of hearing loss to presentation to a pediatric otolaryngologist was 10 days (range 1-60 days). The most cited reasons for delay in care were 'patient not seeking any healthcare evaluation' (65 %) and 'lack of access to obtain an audiogram' (54 %). The most ordered blood work was complete blood count (14 %) and herpes simplex testing (15 %). Complete blood count was ordered more frequently by physicians in practice for >10 years compared with those in practice 1-10 years, P = 0.03. Most respondents reported treating with systemic steroids (86/92, 93 %), including intratympanic steroids (32/92, 35 %). Treatment with systemic steroids was more common in academic compared with private practice, P = 0.03. Antivirals were the most common additional agent prescribed (14/89, 16 %). Most patients were seen in follow-up 1-4 weeks after diagnosis (63/85, 74 %). CONCLUSIONS: Most pediatric otolaryngologists treat SSNHL with systemic steroids. The remainder of the diagnostic and management paradigm varies significantly, highlighting the need to systematically define which treatment optimizes outcomes in this population.


Asunto(s)
Pérdida Auditiva Sensorineural , Pérdida Auditiva Súbita , Niño , Humanos , Estudios Transversales , Pérdida Auditiva Sensorineural/diagnóstico , Pérdida Auditiva Sensorineural/terapia , Pérdida Auditiva Súbita/diagnóstico , Pérdida Auditiva Súbita/terapia , Otorrinolaringólogos , Esteroides , Resultado del Tratamiento
7.
Am J Otolaryngol ; 44(1): 103658, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36347062

RESUMEN

OBJECTIVES: To compare the mean pre-operative air-bone gaps (ABG), mean post-operative ABGs, and extrusion rates between pediatric recipients of partial ossicular reconstruction prostheses (PORPs) and pediatric recipients of total ossicular reconstruction prostheses (TORPs) via a systematic review and meta-analysis. METHODS: A quantitative systematic review last updated on September 29, 2021 of PubMed, Scopus, and Embase databases was conducted for studies reporting mean post-operative ABGs or numbers of children with post-operative ABG ≤ 20 dB following PORP and TORP procedures in at least five children aged 0-18 years. Studies were excluded if they were review articles, conference abstracts, or not in English. Studies that primarily reported data on congenital aural atresia, stapedectomy/stapedotomy, congenital stapes fixation, or juvenile otosclerosis were also excluded. NIH Quality Assessment Tool for Observational Cohort and Cross-Sectional Studies was used to assess for risk of bias. Review Manager (RevMan) version 5.4.1 was used to perform the meta-analysis and generate forest plots. RESULTS: Out of 648 unique abstracts retrieved, 11 papers were included in this systematic review with meta-analysis. Data from 449 children (247 TORP recipients and 202 TORP recipients) are represented among the various analyses. Data from nine studies, representing 84.2 % of all children in the systematic review, demonstrated that PORP recipients presented with a pre-operative ABG 6.30 dB less than TORP recipients (mean difference: -6.30, 95 %CI: -7.4, -5.18, p < 0.01). Data from these same children demonstrated that PORP recipients had a 1.80 dB less post-operative ABG compared to TORP recipients (mean difference: -1.80 dB, 95 %CI: -2.84, -0.77, p < 0.001). Data from seven studies, representing 49.4 % of all children in the systematic review, demonstrated that PORP recipients were more likely to have a successful closure of the post-operative ABG to ≤20 dB (OR: 2.12, 95 %CI: 1.18, 3.79, p = 0.01). In these same children, 62.5 % of PORP recipients had a post-operative ABG ≤ 20 dB and 48.3 % of TORP recipients had a post-operative ABG ≤ 20 dB. There was no difference in extrusion rates between PORP recipients compared to TORP recipients (OR: 1.08, 95 %CI: 0.31, 3.78, p = 0.90) from five studies representing 45.9 % children in the systematic review. CONCLUSION: Children who receive a PORP have better pre-operative hearing baselines and post-operative hearing outcomes compared to those who receive TORP with similar rates of extrusion. More pediatric studies should report their mean pre- and post-operative ABGs stratifying by various material types, surgical indications, and surgical details to facilitate future meta-analyses.


Asunto(s)
Prótesis Osicular , Reemplazo Osicular , Cirugía del Estribo , Niño , Humanos , Reemplazo Osicular/métodos , Estudios Transversales , Resultado del Tratamiento , Estudios Retrospectivos
8.
J Reconstr Microsurg ; 39(8): 616-626, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-36746195

RESUMEN

BACKGROUND: Axillary nerve injury is the most common nerve injury affecting shoulder function. Nerve repair, grafting, and/or end-to-end nerve transfers are used to reconstruct complete neurotmetic axillary nerve injuries. While many incomplete axillary nerve injuries self-resolve, axonotmetic injuries are unpredictable, and incomplete recovery occurs. Similarly, recovery may be further inhibited by superimposed compression neuropathy at the quadrangular space. The current framework for managing incomplete axillary injuries typically does not include surgery. METHODS: This study is a retrospective analysis of 23 consecutive patients with incomplete axillary nerve palsy who underwent quadrangular space decompression with additional selective medial triceps to axillary end-to-side nerve transfers in 7 patients between 2015 and 2019. Primary outcome variables included the proportion of patients with shoulder abduction M3 or greater as measured on the Medical Research Council (MRC) scale, and shoulder pain measured on a Visual Analogue Scale (VAS). Secondary outcome variables included pre- and postoperative Disabilities of the Arm, Shoulder, and Hand Questionnaire (DASH) scores. RESULTS: A total of 23 patients met the inclusion criteria and underwent nerve surgery a mean 10.7 months after injury. Nineteen (83%) patients achieved MRC grade 3 shoulder abduction or greater after intervention, compared with only 4 (17%) patients preoperatively (p = 0.001). There was a significant decrease in VAS shoulder pain scores of 4.2 ± 2.5 preoperatively to 1.9 ± 2.4 postoperatively (p < 0.001). The DASH scores also decreased significantly from 48.8 ± 19.0 preoperatively to 30.7 ± 20.4 postoperatively (p < 0.001). Total follow-up was 17.3 ± 4.3 months. CONCLUSION: A surgical framework is presented for the appropriate diagnosis and surgical management of incomplete axillary nerve injury. Quadrangular space decompression with or without selective medial triceps to axillary end-to-side nerve transfers is associated with improvement in shoulder abduction strength, pain, and DASH scores in patients with incomplete axillary nerve palsy.


Asunto(s)
Plexo Braquial , Transferencia de Nervios , Traumatismos de los Nervios Periféricos , Lesiones del Hombro , Humanos , Estudios Retrospectivos , Dolor de Hombro/cirugía , Resultado del Tratamiento , Plexo Braquial/lesiones , Lesiones del Hombro/cirugía , Traumatismos de los Nervios Periféricos/cirugía , Parálisis/cirugía
9.
Proc Natl Acad Sci U S A ; 116(23): 11437-11443, 2019 06 04.
Artículo en Inglés | MEDLINE | ID: mdl-31110002

RESUMEN

Limited knowledge of the changes in estrogen receptor (ER) signaling during the transformation of the normal mammary gland to breast cancer hinders the development of effective prevention and treatment strategies. Differences in estrogen signaling between normal human primary breast epithelial cells and primary breast tumors obtained immediately following surgical excision were explored. Transcriptional profiling of normal ER+ mature luminal mammary epithelial cells and ER+ breast tumors revealed significant difference in the response to estrogen stimulation. Consistent with these differences in gene expression, the normal and tumor ER cistromes were distinct and sufficient to segregate normal breast tissues from breast tumors. The selective enrichment of the DNA binding motif GRHL2 in the breast cancer-specific ER cistrome suggests that it may play a role in the differential function of ER in breast cancer. Depletion of GRHL2 resulted in altered ER binding and differential transcriptional responses to estrogen stimulation. Furthermore, GRHL2 was demonstrated to be essential for estrogen-stimulated proliferation of ER+ breast cancer cells. DLC1 was also identified as an estrogen-induced tumor suppressor in the normal mammary gland with decreased expression in breast cancer. In clinical cohorts, loss of DLC1 and gain of GRHL2 expression are associated with ER+ breast cancer and are independently predictive for worse survival. This study suggests that normal ER signaling is lost and tumor-specific ER signaling is gained during breast tumorigenesis. Unraveling these changes in ER signaling during breast cancer progression should aid the development of more effective prevention strategies and targeted therapeutics.


Asunto(s)
Neoplasias de la Mama/genética , Transformación Celular Neoplásica/genética , Receptores de Estrógenos/genética , Transducción de Señal/genética , Diferenciación Celular/genética , Línea Celular Tumoral , Proliferación Celular/genética , Proteínas de Unión al ADN/genética , Células Epiteliales/patología , Estrógenos/genética , Femenino , Humanos , Células MCF-7 , Factores de Transcripción/genética
10.
Ann Plast Surg ; 88(4): 425-428, 2022 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-34864748

RESUMEN

ABSTRACT: Common peroneal neuropathy is a peripheral neuropathy of multifactorial etiology often left undiagnosed until foot drop manifests and electrodiagnostic abnormalities are detected. However, reliance on such striking symptoms and electrodiagnostic findings for diagnosis stands in contrast to other commonly treated neuropathies, such as carpal tunnel and cubital tunnel syndrome. Poor recognition of common peroneal neuropathy without foot drop or the presence of foot drop with normal electrodiagnostic studies thus often results in delayed or no surgical treatment. Our cases document 2 patients presenting with complete foot drop who had immediate resolution after decompression. The first patient presented with normal electrodiagnostic studies representing an isolated Sunderland Zero nerve ischemia. The second patient presented with severe electrodiagnostic studies but also had an immediate improvement in their foot drop representing a Sunderland VI mixed nerve injury with a significant contribution from an ongoing Sunderland Zero ischemic conduction block. In support of recent case series, these patients demonstrate that common peroneal neuropathy can present across a broad diagnostic spectrum of sensory and motor symptoms, including with normal electrodiagnostic studies. Four clinical subtypes of common peroneal neuropathy are presented, and surgical decompression may thus be indicated for these patients that lack the more conventional symptoms of common peroneal neuropathy.


Asunto(s)
Enfermedades del Sistema Nervioso Periférico , Neuropatías Peroneas , Descompresión Quirúrgica/efectos adversos , Humanos , Isquemia/diagnóstico , Isquemia/etiología , Isquemia/cirugía , Conducción Nerviosa , Nervio Peroneo/cirugía , Neuropatías Peroneas/diagnóstico , Neuropatías Peroneas/etiología , Neuropatías Peroneas/cirugía
11.
Proc Natl Acad Sci U S A ; 115(31): 7869-7878, 2018 07 31.
Artículo en Inglés | MEDLINE | ID: mdl-29987050

RESUMEN

Endocrine therapy resistance invariably develops in advanced estrogen receptor-positive (ER+) breast cancer, but the underlying mechanisms are largely unknown. We have identified C-terminal SRC kinase (CSK) as a critical node in a previously unappreciated negative feedback loop that limits the efficacy of current ER-targeted therapies. Estrogen directly drives CSK expression in ER+ breast cancer. At low CSK levels, as is the case in patients with ER+ breast cancer resistant to endocrine therapy and with the poorest outcomes, the p21 protein-activated kinase 2 (PAK2) becomes activated and drives estrogen-independent growth. PAK2 overexpression is also associated with endocrine therapy resistance and worse clinical outcome, and the combination of a PAK2 inhibitor with an ER antagonist synergistically suppressed breast tumor growth. Clinical approaches to endocrine therapy-resistant breast cancer must overcome the loss of this estrogen-induced negative feedback loop that normally constrains the growth of ER+ tumors.


Asunto(s)
Neoplasias de la Mama/tratamiento farmacológico , Estrógenos/farmacología , Proteínas de Neoplasias/biosíntesis , Receptores de Estrógenos/biosíntesis , Neoplasias de la Mama/genética , Neoplasias de la Mama/metabolismo , Neoplasias de la Mama/patología , Proteína Tirosina Quinasa CSK , Femenino , Regulación Enzimológica de la Expresión Génica/efectos de los fármacos , Regulación Neoplásica de la Expresión Génica/efectos de los fármacos , Humanos , Células MCF-7 , Proteínas de Neoplasias/genética , Receptores de Estrógenos/genética , Quinasas p21 Activadas/biosíntesis , Quinasas p21 Activadas/genética , Familia-src Quinasas/biosíntesis , Familia-src Quinasas/genética
12.
Am J Otolaryngol ; 42(2): 102887, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33422945

RESUMEN

OBJECTIVE: To determine if barriers to cochlear implantation (CI) exist with respect to Amish children and to describe unique considerations associated with CI and subsequent otologic care in the Amish population. METHODS: Out of all patients who underwent CI at a tertiary care pediatric hospital from 2008 to 2019, Amish children were age-matched to the remainder of the cohort to compare demographics and care-related metrics including etiology of hearing loss, age at time of initial hearing-related appointment and at CI, total number of pre- and post-operative audiologic and otologic appointments, and post-operative complications. Social considerations that may pose barriers to care were collected for descriptive analysis. RESULTS: Since 2008, 232 children underwent CI, of which 8 implants were performed on Amish children. Six (75%) Amish children underwent newborn hearing screening and 3(38%) were found to have syndromic etiology for hearing loss. While Amish patients had a lower number of both audiologic (15 vs 33.5, p<.001) and otologic (4.5 vs 8.5, p=.028) appointments when compared to age-matched controls, median age at the time of implantation for the whole sample was not different between groups (2.5 vs 2.0 years, p=.211). From a social standpoint, limitations in transportation, telephone communication, and ability to recharge processor batteries must be considered in the Amish population. CONCLUSION: Amish children undergoing CI face unique barriers to care including transportation and technologic limitations, leading to overall fewer hearing-related appointments when compared to an age-matched cohort. Understanding societal differences is important to facilitate optimal care for Amish children with hearing loss.


Asunto(s)
Amish , Implantación Coclear , Accesibilidad a los Servicios de Salud , Pérdida Auditiva/cirugía , Factores de Edad , Citas y Horarios , Niño , Preescolar , Estudios de Cohortes , Femenino , Pérdida Auditiva/diagnóstico , Pérdida Auditiva/epidemiología , Pérdida Auditiva/etiología , Pruebas Auditivas , Humanos , Lactante , Recién Nacido , Masculino , Factores Sociológicos
13.
Int J Mol Sci ; 22(3)2021 Jan 27.
Artículo en Inglés | MEDLINE | ID: mdl-33513976

RESUMEN

The inherent abilities of natural killer (NK) cells to recognize and kill target cells place them among the first cells with the ability to recognize and destroy infected or transformed cells. Cancer cells, however, have mechanisms by which they can inhibit the surveillance and cytotoxic abilities of NK cells with one believed mechanism for this: their ability to release exosomes. Exosomes are vesicles that are found in abundance in the tumor microenvironment that can modulate intercellular communication and thus enhance tumor malignancy. Recently, our lab has found cancer cell exosomes to contain the inhibitor of apoptosis (IAP) protein survivin to be associated with decreased immune response in lymphocytes and cellular death. The purpose of this study was to explore the effect of survivin and lymphoma-derived survivin-containing exosomes on the immune functions of NK cells. NK cells were obtained from the peripheral blood of healthy donors and treated with pure survivin protein or exosomes from two lymphoma cell lines, DLCL2 and FSCCL. RNA was isolated from NK cell samples for measurement by PCR, and intracellular flow cytometry was used to determine protein expression. Degranulation capacity, cytotoxicity, and natural killer group 2D receptor (NKG2D) levels were also assessed. Lymphoma exosomes were examined for size and protein content. This study established that these lymphoma exosomes contained survivin and FasL but were negative for MHC class I-related chains (MIC)/B (MICA/B) and TGF-ß. Treatment with exosomes did not significantly alter NK cell functionality, but extracellular survivin was seen to decrease natural killer group 2D receptor (NKG2D) levels and the intracellular protein levels of perforin, granzyme B, TNF-α, and IFN-γ.


Asunto(s)
Proteína Ligando Fas/genética , Células Asesinas Naturales/inmunología , Linfoma/genética , Subfamilia K de Receptores Similares a Lectina de Células NK/genética , Survivin/genética , Línea Celular Tumoral , Linaje de la Célula/genética , Linaje de la Célula/inmunología , Proliferación Celular/genética , Exosomas/genética , Exosomas/inmunología , Citometría de Flujo , Regulación Neoplásica de la Expresión Génica/genética , Genes MHC Clase I/genética , Antígenos de Histocompatibilidad Clase I/genética , Humanos , Proteínas Inhibidoras de la Apoptosis/genética , Linfoma/inmunología , Linfoma/patología , Factor de Crecimiento Transformador beta/genética
14.
J Reconstr Microsurg ; 37(2): 124-131, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-32693423

RESUMEN

BACKGROUND: The novel coronavirus disease 2019 (COVID-19) has swept the world in the last several months, causing massive disruption to existing social, economic, and health care systems. As with all medical fields, plastic and reconstructive surgery has been profoundly impacted across the entire spectrum of practice from academic medical centers to solo private practice. The decision to preserve vital life-saving equipment and cancel elective procedures to protect patients and medical staff has been extremely challenging on multiple levels. Frequent and inconsistent messaging disseminated by many voices on the national stage often conflicts and serves only to exacerbate an already difficult decision-making process. METHODS: A survey of relevant COVID-19 literature is presented, and bioethical principles are utilized to generate guidelines for plastic surgeons in patient care through this pandemic. RESULTS: A cohesive framework based upon core bioethical values is presented here to assist plastic surgeons in navigating this rapidly evolving global pandemic. CONCLUSION: Plastic surgeons around the world have been affected by COVID-19 and will adapt to continue serving their patients. The lessons learned in this present pandemic will undoubtedly prove useful in future challenges to come.


Asunto(s)
COVID-19/epidemiología , Cirugía Plástica/ética , Humanos , Pandemias , SARS-CoV-2
15.
Aesthet Surg J ; 41(4): 448-459, 2021 03 12.
Artículo en Inglés | MEDLINE | ID: mdl-32940709

RESUMEN

BACKGROUND: En bloc capsulectomy has recently increased in prominence as a potential surgical therapy for patients with breast implant illness (BII). However, this procedure has chiefly been recommended for treating breast implant-associated anaplastic large cell lymphoma (BIA-ALCL). OBJECTIVES: This study aimed to review the current literature and evaluate the public understanding of treatment options for BII via social media to characterize any potential communication disconnect between clinicians and patients. METHODS: An electronic literature review was performed to identify all available publications mentioning evidence-based support for en bloc capsulectomy as treatment for BII and BIA-ALCL. Twitter social media posts referencing BII or BIA-ALCL were analyzed from 2010 to 2019. Author identity and any mention of surgical treatment were assessed. RESULTS: A total of 115 publications on the subject of BII and 315 articles on BIA-ALCL were identified. En bloc resection was recommended only for patients with a diagnosis of BIA-ALCL. A total of 6419 tweets referencing BII and 6431 tweets referencing BIA-ALCL were identified. Tweets referencing BIA-ALCL were significantly more likely to be authored by physicians (25.9% vs 5.3%, P < 0.001), and tweets referencing BII were significantly more likely to mention any surgical treatment (7.8% vs 1.9%, P < 0.001) and en bloc capsulectomy (1.4% vs 0.3%, P < 0.001). CONCLUSIONS: This study demonstrates that a communication disconnect exists between the scientific literature and social media regarding treatment options for BII and BIA-ALCL. Physicians should be aware of these potential misconceptions to empathetically address patient concerns in a patient-centered manner.


Asunto(s)
Implantación de Mama , Implantes de Mama , Neoplasias de la Mama , Linfoma Anaplásico de Células Grandes , Medios de Comunicación Sociales , Implantación de Mama/efectos adversos , Implantes de Mama/efectos adversos , Neoplasias de la Mama/etiología , Neoplasias de la Mama/cirugía , Humanos , Linfoma Anaplásico de Células Grandes/etiología , Linfoma Anaplásico de Células Grandes/cirugía
16.
Am J Otolaryngol ; 41(6): 102614, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32622290

RESUMEN

PURPOSE: The current loss to follow-up rate after failed newborn hearing screening (NBHS) is 34.4%. Previous studies have found that lack of parental and primary care provider (PCP) awareness of NBHS results are significant contributors to loss to follow-up. The objective of this study was to identify factors associated with parental and PCP awareness of NBHS results. MATERIALS AND METHODS: Retrospective cohort study. A survey asking about demographics and knowledge of NBHS testing and results was offered to parents in the waiting room of an urban pediatric primary care office. Included were biological parents ≥18 years of age of children ≤10 years of age born in Pennsylvania. Each child's chart was reviewed for PCP documentation of NBHS results. The odds of knowing NBHS results were evaluated using logistic regression. RESULTS: The survey was completed by 304 parents. 74.0% were aware of their child's NBHS results. Child age ≥1 year old (OR: 0.49, 95%CI[0.29, 0.82], P = 0.007) and Hispanic ethnicity (OR: 0.38, 95%CI[0.16, 0.89], P = 0.03) were associated with decreased odds of a parent knowing NBHS results. In addition, fewer fathers knew the results of their child's NBHS compared with mothers (OR: 0.33, 95%CI[0.18, 0.62], P < 0.001). However, parental awareness was not associated with birthing facility or insurance type. 222 charts were reviewed for NBHS documentation, revealing PCP awareness in 95.5% of cases and no associations with any of the factors examined. CONCLUSIONS: Factors associated with parents not knowing NBHS results included being the parent of an older child, Hispanic, or the father.


Asunto(s)
Concienciación , Personal de Salud/psicología , Pérdida Auditiva/congénito , Pérdida Auditiva/prevención & control , Pruebas Auditivas , Tamizaje Neonatal , Padres/psicología , Atención Primaria de Salud , Adolescente , Factores de Edad , Niño , Estudios de Cohortes , Etnicidad , Femenino , Estudios de Seguimiento , Humanos , Lactante , Recién Nacido , Masculino , Sistemas de Identificación de Pacientes , Estudios Retrospectivos
17.
Ann Plast Surg ; 85(6): e76-e83, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-32960515

RESUMEN

BACKGROUND: The abdomen is the most common donor site in autologous microvascular free flap breast reconstruction and contributes significantly to postoperative pain, resulting in increased opioid use, length of stay, and hospital costs. Enhanced Recovery After Surgery (ERAS) protocols have demonstrated multiple clinical benefits, but these protocols are widely heterogeneous. Transversus abdominis plane (TAP) blocks have been reported to improve pain control and may be a key driver of the benefits seen with ERAS pathways. METHODS: A systematic review and meta-analysis of studies reporting TAP blocks for abdominally based breast reconstruction were performed. Studies were extracted from 6 public databases before February 2019 and pooled in accordance with the PROSPERO registry. Total opioid use, postoperative pain, length of stay, hospital cost, and complications were analyzed using a random effects model. RESULTS: The initial search yielded 420 studies, ultimately narrowed to 12 studies representing 1107 total patients. Total hospital length of stay (mean difference, -1.00 days; P < 0.00001; I = 81%) and opioid requirement (mean difference, -133.80 mg of oral morphine equivalent; P < 0.00001; I = 97%) were decreased for patients receiving TAP blocks. Transversus abdominis plane blocks were not associated with any significant differences in postoperative complications (P = 0.66), hospital cost (P = 0.22), and postoperative pain (P = 0.86). CONCLUSIONS: Optimizing postoperative pain management after abdominally based microsurgical breast reconstruction is invaluable for patient recovery. Transversus abdominis plane blocks are associated with a reduction in length of stay and opioid use, representing a safe and reasonable strategy for decreasing postoperative pain.


Asunto(s)
Mamoplastia , Bloqueo Nervioso , Músculos Abdominales/cirugía , Analgésicos Opioides/uso terapéutico , Anestésicos Locales , Bupivacaína , Humanos , Dolor Postoperatorio/prevención & control
18.
Ann Plast Surg ; 80(4 Suppl 4): S182-S188, 2018 04.
Artículo en Inglés | MEDLINE | ID: mdl-29596085

RESUMEN

BACKGROUND: Patients with connective tissue diseases (CTD), or collagen vascular diseases, are at risk of potentially higher morbidity after surgical procedures. We aimed to investigate the complication profile in CTD versus non-CTD patients who underwent breast reconstruction on a national scale. METHODS: A retrospective analysis of the Healthcare Cost and Utilization Project NIS Database between 2010 and 2014 was conducted for patients 18 years or older admitted for immediate autologous or implant breast reconstruction. Connective tissue disease was defined as systemic lupus erythematosus, rheumatoid arthritis, systemic sclerosis, scleroderma, Raynaud phenomenon, psoriatic arthritis, or sarcoidosis. Independent t test/Wilcoxon-Mann-Whitney was used to compare continuous variables and Pearson χ/Fischer exact test was used for categorical variables. Outcomes of interest were assessed using multivariable linear regressions for continuous variables and multivariable logistic regressions for categorical variables. RESULTS: There were 19,496 immediate autologous breast reconstruction patients, with 357 CTD and 19,139 non-CTD patients (2010-2014). The CTD patients had higher postoperative complication rates for infection (2.8% vs 0.8%, P < 0.001), wound dehiscence (1.4% vs 0.4%, P = 0.019), and bleeding (hemorrhage and hematoma) (6.7% vs 3.5%, P < 0.001). After multivariable analysis, CTD remained an independent risk factor for bleeding (odds ratio [OR], 1.568; 95% confidence interval [CI], 1.019-2.412). There were a total of 23,048 immediate implant breast reconstruction patients, with 431 CTD and 22,617 non-CTD patients (2010-2014). The CTD patients had a higher postoperative complication rate for wound dehiscence/complication (2.3% vs 0.6%, P < 0.001). They also experienced a longer length of stay (2.31 days vs 2.07 days, P < 0.001). After multivariable analysis, CTD remained an independent risk factor for wound dehiscence (OR, 4.084; 95% CI, 2.101-7.939) and increased length of stay by 0.050 days (95% CI, -0.081 to 0.181). CONCLUSIONS: Connective tissue disease patients who underwent autologous breast reconstruction had significantly higher infection, wound dehiscence, and bleeding rates, and those who underwent implant breast reconstruction had significantly higher wound dehiscence rates. Connective tissue diseases appear to be an independent risk factor for bleeding and wound dehiscence in autologous and implant breast reconstruction, respectively. This information may help clinicians be aware of this increased risk when determining patients for reconstruction.


Asunto(s)
Enfermedades del Tejido Conjuntivo/complicaciones , Mamoplastia , Complicaciones Posoperatorias/etiología , Adolescente , Adulto , Anciano , Bases de Datos Factuales , Femenino , Estudios de Seguimiento , Humanos , Modelos Lineales , Modelos Logísticos , Persona de Mediana Edad , Complicaciones Posoperatorias/epidemiología , Estudios Retrospectivos , Factores de Riesgo , Adulto Joven
19.
Aesthetic Plast Surg ; 42(2): 603-609, 2018 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-29101441

RESUMEN

INTRODUCTION: Rhytidectomy is one of the most commonly performed cosmetic procedures by plastic surgeons. Increasing attention to the development of a high-value, low-cost healthcare system is a priority in the USA. This study aims to analyze specific patient and hospital factors affecting the cost of this procedure. METHODS: We conducted a retrospective cohort study of self-pay patients over the age of 18 who underwent rhytidectomy using the Healthcare Utilization Cost Project National Inpatient Sample database between 2013 and 2014. Mean marginal cost increases patient characteristics, and outcomes were studied. Generalized linear modeling with gamma regression and a log-link function were performed along with estimated marginal means to provide cost estimates. RESULTS: A total of 1890 self-pay patients underwent rhytidectomy. Median cost was $11,767 with an interquartile range of $8907 [$6976-$15,883]. The largest marginal cost increases were associated with postoperative hematoma ($12,651; CI $8181-$17,120), West coast region ($7539; 95% CI $6412-$8666), and combined rhinoplasty ($7824; 95% CI $3808-$11,840). The two risk factors associated with the generation of highest marginal inpatient costs were smoking ($4147; 95% CI $2804-$5490) and diabetes mellitus ($5622; 95% CI $3233-8011). High-volume hospitals had a decreased cost of - $1331 (95% CI - $2032 to - $631). CONCLUSION: Cost variation for inpatient rhytidectomy procedures is dependent on preoperative risk factors (diabetes and smoking), postoperative complications (hematoma), and regional trends (West region). Rhytidectomy surgery is highly centralized and increasing hospital volume significantly decreases costs. Clinicians and hospitals can use this information to discuss the drivers of cost in patients undergoing rhytidectomy. LEVEL OF EVIDENCE V: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .


Asunto(s)
Costo de Enfermedad , Análisis Costo-Beneficio , Hospitalización/economía , Ritidoplastia/economía , Adulto , Estudios de Cohortes , Bases de Datos Factuales , Femenino , Recursos en Salud/economía , Humanos , Modelos Lineales , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Ritidoplastia/métodos , Medición de Riesgo , Estados Unidos , Adulto Joven
20.
Artículo en Inglés | MEDLINE | ID: mdl-39256074

RESUMEN

Surgery remains the mainstay of cholesteatoma management. Through advancement in technique and technology, the available surgical approaches have expanded to include not only the traditional procedures, but also endoscopic procedures, canal wall reconstruction procedures, mastoid obliteration, and retrograde mastoidotomy. Selection of management technique will depend on disease characteristics, patient factors, and surgeon preference.

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