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2.
Surg Endosc ; : 6353-6360, 2023 May 19.
Artigo em Inglês | MEDLINE | ID: mdl-37204602

RESUMO

BACKGROUND: Research presentation has benefits, including CV building, networking, and collaboration. A measurable standard for achievement is publication in a peer-reviewed journal. Expectations regarding the likelihood of publication are unknown for studies presented at a national surgical scientific meeting. This study aims to evaluate predictors of manuscript publication arising from abstracts presented at a national surgical scientific meeting. METHODS: Abstracts presented at the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) Meeting 2019 were reviewed. Identification of published manuscripts was completed using MedLine, Embase, and Google Scholar 28 months after the presentation to allow for time for publication. Factors evaluated for association with publication included author and abstract measures. Descriptive analyses and multivariable statistics were performed. RESULTS: 724 abstracts (160 podiums, 564 posters) were included. Of the podium presentations, 128 (80%) were published in a median of 4 months after the presentation. On univariable and multivariable analyses, there was no association between publication and abstract topic, gender, degree, number of publications, or H-indices of first and senior authors. 154 (27.3%) poster presentations were published with a median of 13 months. On univariable analysis, there was a statistically significant difference regarding the abstract topic (p = 0.015) and senior author degree (p = 0.01) between published and unpublished posters. Multivariable analysis demonstrated that colorectal surgery (OR 2.52; CI 1.02-6.23) and metabolic/obesity (OR 2.53; CI 1.09-5.84) are associated with an increased odd of publication. There was an inverse association with female senior authors (OR 0.53; CI 0.29-0.98), while additional degrees (e.g., doctorate and/or master's degree) of the senior authors were associated with an increased publication rate (OR 1.80; CI 1.00-3.22). CONCLUSION: 80% of podiums but only 27% of posters were ultimately published. While some predictors of poster publication were noted, it is unclear if these are why these projects fail to publish. Future research is warranted to determine if there are effective strategies to increase poster publication rates.

3.
Ann Surg Oncol ; 30(9): 5511-5518, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37249722

RESUMO

BACKGROUND: The benefits of chemotherapy in stage II colon cancer remain unclear, but it is recommended for high-risk stage II disease. Which patients receive chemotherapy and its impact on survival remains undetermined. METHODS: The National Cancer Database was surveyed between 2004 and 2016 for stage II colon cancer patients. Patients were categorized as high- or average-risk as defined by the National Comprehensive Cancer Network. The demographic characteristics of high- and average-risk patients who did and did not receive chemotherapy were compared using univariate and multivariable analyses. The survival of high- and average-risk patients was compared based on receipt of chemotherapy with Cox hazard ratios and Kaplan-Meier curves. RESULTS: Overall, 84,424 patients met the inclusion criteria. A total of 34,868 patients were high-risk and 49,556 were average-risk. In high-risk patients, the risk factors for not receiving chemotherapy included increasing age, distance from the treatment facility, Charlson-Deyo score, and lack of insurance. In average-risk patients, factors associated with receipt of chemotherapy were decreasing age, distance from the treatment facility, Charlson-Deyo score, and non-academic association of the treatment facility. In both, chemotherapy was significantly associated with increased survival on the Kaplan-Meier curve. In the Cox hazard ratio, only high-risk patients benefited from chemotherapy (hazard ratio 1.183, confidence interval 1.116-1.254). CONCLUSIONS: Factors associated with not receiving chemotherapy in high-risk stage II colon cancers included increasing age, medical comorbidities, increasing distance from the treatment facility, and lack of insurance. Chemotherapy is associated with improved overall survival in high-risk patients.


Assuntos
Neoplasias do Colo , Humanos , Estadiamento de Neoplasias , Quimioterapia Adjuvante , Modelos de Riscos Proporcionais , Fatores de Risco , Neoplasias do Colo/patologia
4.
Eplasty ; 23: e7, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36817364

RESUMO

Background: The development of postoperative oronasal fistulae (ONF) is a complication that plagues all cleft surgeons to varying degrees. There is extensive literature discussing the incidence, functional impact, and treatment of ONF. The goal of this article is to provide an extensive review of the literature discussing the incidence, causative factors, functional impact, classification systems, and treatment of ONF. Methods: A literature review was performed using PubMed using the Medical Subject Heading terms "cleft palate" AND "fistula" OR "palatal fistula" OR "oronasal fistula". After review, a total of 356 articles were deemed relevant for this study. Results: Information regarding ONF care, prevention, and management in patients with cleft palate was collected from the articles included in this review. Treatment of ONF remains a challenging problem as there is not a consensus in the available literature on the best palatoplasty techniques for their prevention and treatment. A myriad of reconstructive options and adjunctive therapies exist, and their use is guided by the size and location of the fistula. Conclusions: Fistula treatment should be tailored to the specific needs of the patient, and consideration must be given to not only the ONF itself but also the patient's stage of growth and development. Large-scale, multicenter studies are needed in which ONF are described using standardized nomenclature, and improved outcomes reporting is necessary to better define an algorithm for a truly holistic approach to palate surgery and reduce the incidence of palatal fistula.

5.
J Pediatr Orthop ; 43(4): 268-272, 2023 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-36693390

RESUMO

BACKGROUND: Venous thromboembolism (VTE) is a frequent occurrence during treatment for adults with sarcoma. The incidence and underlying risk factors of postsurgical VTE in children and adolescents undergoing resection of sarcoma are unknown. METHODS: Using International Classification of Disease revision-9 diagnostic and procedure codes, the Pediatric Health Information System database was queried for patients aged 18 years and younger, discharged from 2004 to 2015 with a diagnosis of lower extremity malignant neoplasm who had a tumor resection or amputation performed during the encounter. Malignant neoplasms of the pelvic bones and soft tissues were categorized as "pelvis tumors", whereas malignant neoplasms of bone and soft tissues of the lower limbs were categorized as "lower limb tumors". Hospitalizations were evaluated for the occurrence of VTE. Demographic characteristics (age at admission, sex, race, and race/ethnicity) and incidence of VTE were reported. RESULTS: There were 2400 patients identified. Of these, 19 experienced VTE (0.79%) during their surgical hospitalization encounter. By anatomic group, the rate of VTE was 1.4% (CI: 0.5%-3.2%) for tumors in the pelvis and 0.6% (CI: 0.3%-1.0%) in lower limb tumors. Categorizing by age, the incidence of VTE was 1.2% in patients aged zero to 5, 0.3% in patients 6 to 13, and 1.2% in patients 14 to 18 years old. (Table 1). The extremely low rate of VTE occurrence precluded further analysis of risk factors. CONCLUSIONS: In this analysis, postsurgical VTE during hospitalization after pelvic and lower extremity sarcoma resection was an uncommon event in children and adolescents. There seemed to be an increased incidence of postsurgical VTE in pelvic tumors when compared with lower limb tumors, however, the rarity of all events precluded formal statistical analysis. A more robust data set would be required to determine if there are subsets of children and adolescents with sarcoma at higher risk of VTE that could benefit from thromboprophylaxis in the postoperative setting. LEVEL OF EVIDENCE: Level II.


Assuntos
Sistemas de Informação em Saúde , Sarcoma , Tromboembolia Venosa , Adulto , Adolescente , Humanos , Criança , Tromboembolia Venosa/epidemiologia , Tromboembolia Venosa/etiologia , Tromboembolia Venosa/prevenção & controle , Anticoagulantes/uso terapêutico , Incidência , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Hospitalização , Sarcoma/epidemiologia , Sarcoma/cirurgia , Sarcoma/complicações , Fatores de Risco , Extremidade Inferior/cirurgia
6.
J Surg Educ ; 80(1): 39-50, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36085114

RESUMO

OBJECTIVE: Standardized letters of recommendation (SLOR) are hypothesized to decrease bias and provide consistent domains for evaluation. However, their ability to differentiate among applicants is unknown. The utilization and functionality of SLOR and the impact of SLOR domain rating on matching for colon and rectal surgery (CRS) residency applicants have yet to be assessed. DESIGN: Descriptive statistics and bivariate analysis were employed. Applicants were categorized into 3 groups; Top-tier(TT): applicants rated 100% Excellent/Very Good; Mid-Tier(MT) applicants rated 80-99% Excellent/Very Good; and Non-Top Tier(NTT) applicants rated <80% Excellent/Very Good. SETTING: University of Hospitals Cleveland Medical Center. PARTICIPANTS: SLORs submitted to a single colorectal surgery residency in 2019 were analyzed RESULTS: A total of 101 applicants were included, 54 (53.5%) of the applicants were male. 75 (74.2%) applicants who applied to our residency matched into a CRS residency, compared to the national rate of 66%. Of the 101 applicants with SLOR, 54 (53.5%) were categorized as TT, 26 (25.7%) as MT, and 21(20.8%) as NTT. The univariable analysis demonstrated a statistically significant difference in research experience (p=0.029) and match status (p=0.01) between applicant tiers. There were no statistically significant differences between applicant-tier and demographics, foreign medical graduates (FMG), H-indices, ABSITE scores, type of residency, preliminary year, completing an unaccredited CRS, and applicants with an additional degree. On multivariable analysis age (OR=0.65; CI=0.48-0.87) and FMG applicants (OR=0.05; CI=0.01-0.44) were inversely associated with successfully matching. Compared to TT applicants, MT (OR=0.07; CI=0.01-0.57) and NTT (OR=0.04; CI=0.01-0.34) applicants were inversely associated with a successful match. Individuals who completed research prior to residency but after medical school was associated with successfully matching (p=0.009). CONCLUSIONS: The presence of MT and NTT ratings is associated with failure to match and may represent an area of concern for CRS programs rather than a tool to discern differences between candidates.


Assuntos
Cirurgia Colorretal , Internato e Residência , Humanos , Masculino , Feminino , Seleção de Pessoal , Estudos Retrospectivos , Correlação de Dados
8.
Cleft Palate Craniofac J ; 59(6): 693-700, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-34132122

RESUMO

OBJECTIVE: We aimed to assess significant ethnic variabilities in infants' nasolabial anthropometry to motivate variations in surgical correction of a synchronous bilateral cleft lip/nasal anomaly, specifically whether a long columella is a European feature, therefore accepting a short columella and/or delayed columellar lengthening suitable for reconstruction in ethnic patients. METHODS: Thirty-three infants without craniofacial pathology (10 African American [AA], 7 Hispanic [H], and 16 of European descent [C]), ages 3 to 8 months, presenting to the Johns Hopkins All Children's general pediatric clinic were recruited. Four separate 3D photographs (2 submental and frontal views each) were taken using the Vectra H1 handheld camera (Canfield Imaging). Eighteen linear facial distances were measured using Mirror 3D analysis (Canfield Imaging Systems). Difference between ethnicities was measured using analysis of variance with the Bonferroni/Dunn post hoc comparisons. Pearson correlation was employed for interrater reliability. All statistical analyses were carried out using SPSS version 21.0 (IBM Corp), with statistical significance set at P < .05. RESULTS: Nasal projection (sn-prn) and columella length (sn-c) did not differ significantly between groups (P = .9). Significant differences were seen between ethnic groups in nasal width (sbal-sbal [C-AA; P = .02]; ac-ac [C-AA; P = .00; H-AA; P = .04]; al-al [C-AA; P = .00; H-AA; P = .001]) and labial length (sn-ls [C-AA; P = .041]; sn-sto [C-AA; P = .005]; Cphs-Cphi L [C-AA; P = .013]; Cphs-Cphi R [C-AA; P = .015]). Interrater reliability was good to excellent and significantly correlated for all measures. CONCLUSIONS: African American infants exhibited wider noses and longer lips. No difference was noted in nasal projection or columella length, indicating that these structures should be corrected during the primary cleft lip and nasal repair for all patients and should not be deferred to secondary correction.


Assuntos
Fenda Labial , Doenças Nasais , Antropometria , Criança , Fenda Labial/diagnóstico por imagem , Fenda Labial/cirurgia , Etnicidade , Humanos , Lactente , Septo Nasal , Nariz/anormalidades , Reprodutibilidade dos Testes
9.
Cleft Palate Craniofac J ; 58(9): 1142-1149, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-33353404

RESUMO

INTRODUCTION: Oronasal fistulae following palatoplasty may affect patients' quality of life by impacting their ability to eat, speak, and maintain oral hygiene. We aimed to quantify the impact of previous oronasal fistula repair on patients' quality of life using patient-reported outcome psychometric tools. METHODS: A cross-sectional study of 8- to 9-year-old patients with cleft palate and/or lip was completed. Patients who had a cleft team clinic between September 2018 and August 2019 were recruited. Participants were divided into 2 groups (no fistula, prior fistula repair). Differences in the individual CLEFT-Q and Child Oral Health Impact Profile-Short Form 19 (COHIP-SF 19) Oral Health scores between the 2 groups were evaluated using a multivariate analysis controlling for Veau classification and syndromic diagnosis. RESULTS: Sixty patients with a history of cleft palate were included. Forty-two (70%) patients had an associated cleft lip. Thirty-two (53.3%) patients had no history of fistula and 28 (46.7%) patients had undergone a fistula repair. CLEFT-Q Dental, Jaw, and Speech Function were all higher in patients without a history of a fistula repair; however, none of these differences were statistically significant. The COHIP-SF 19 Oral Health score demonstrated a significantly lower score in the fistula group, indicating poorer oral health (P = .05). CONCLUSIONS: One would expect that successful repair of a fistula would result in improved function and patient satisfaction, but the consistent trend toward lower CLEFT-Q scores and significantly increased COHIP-SF 19 Oral Health scores in our study group suggests that residual effects linger and that the morbidity of a fistula may not be completely treated with a secondary correction.


Assuntos
Fenda Labial , Fissura Palatina , Fístula , Criança , Fenda Labial/cirurgia , Fissura Palatina/cirurgia , Estudos Transversais , Humanos , Fístula Bucal , Saúde Bucal , Assistência Centrada no Paciente , Complicações Pós-Operatórias , Qualidade de Vida , Estudos Retrospectivos , Resultado do Tratamento
10.
Cleft Palate Craniofac J ; 58(7): 805-814, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33030045

RESUMO

OBJECTIVE: Mandibular distraction osteogenesis (MDO) aims to relieve tongue-based airway obstruction in Robin Sequence (RS). We investigated direct laryngoscopy grade (DLG) improvement and difficult airway (DA) resolution following MDO. DESIGN: Retrospective cohort analysis. SETTING: Three tertiary care institutions. PATIENTS: Sixty-four infants with RS who underwent a single MDO procedure in their first year of life were identified from January 2010 to January 2019. MAIN OUTCOME MEASURES: The primary outcome was DLG pre- and post-MDO. Secondary outcomes included DA designation, pre- and post-MDO polysomnographic assessment for obstructive sleep apnea (OSA), length of stay, need for gastrostomy, and major/minor adverse events. RESULTS: Median DLG improved from II pre-MDO to I at the time of distractor removal (n = 43, P < .001). No significant change was seen in patients with a third recorded time point (eg, palatoplasty; n = 78, P = .52). Twenty-six (47%) of 55 patients were designated as DA pre-MDO, and 10 (18%) of 55 patients retained the label post-MDO (P < .01). Five (50%) of these 10 patients appeared to be inappropriately retained. Median obstructive apnea-hypopnea index improved from 38.6 (range 31.2-62.8) pre-MDO to 2.9 (range 1-3.9) post-MDO (n = 12; P = .002). CONCLUSION: Mandibular distraction osteogenesis allowed for DLG improvement that was stably maintained as well as functional improvement in OSA, with minimal morbidity. Difficult airway designation persisted in the electronic record of some infants despite clinical resolution.


Assuntos
Obstrução das Vias Respiratórias , Osteogênese por Distração , Síndrome de Pierre Robin , Obstrução das Vias Respiratórias/cirurgia , Humanos , Lactente , Laringoscopia , Mandíbula/cirurgia , Síndrome de Pierre Robin/cirurgia , Estudos Retrospectivos , Resultado do Tratamento
11.
Environ Technol ; 42(7): 1119-1131, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31423913

RESUMO

In this study, we used a synthesized cross-linked magnetic chitosan with graphene oxide beads to study the removal of perchlorate from wastewater. The prepared complex was characterized using transmission electron microscopy (TEM), Fourier Transformation Infrared spectroscopy (FT-IR), vibrating sample magnetometry (VSM) and Thermal gravimetric analysis (TGA). Several parameters were studied including the effect of pH, contact time and the co-existing anions. The study showed that the adsorption could be studied in a wide range of pH. The study showed that the adsorption follows a pseudo-second-order model and Langmuir adsorption isotherm. The enthalpy and negative Gibbs standard free energy showed that the adsorption process was exothermic and spontaneous. The perchlorate adsorbent can be regenerated well by 0.1% NaCl solution.


Assuntos
Quitosana , Grafite , Poluentes Químicos da Água , Adsorção , Concentração de Íons de Hidrogênio , Íons , Cinética , Fenômenos Magnéticos , Percloratos , Espectroscopia de Infravermelho com Transformada de Fourier , Águas Residuárias
12.
Cleft Palate Craniofac J ; 58(5): 539-545, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-32996328

RESUMO

INTRODUCTION: Surgical outcomes for patients with complete cleft lips are not as ideal as those achieved for milder phenotypes. We hypothesized that in addition to the greater width of the cleft, patients with complete cleft lip and palate exhibit a greater degree of hypoplasia and asymmetry. METHODS: Stereophotographs of 14 infants with unrepaired unilateral complete and 14 with incomplete cleft lips were measured using Vectra imaging software (Canfield Imaging). Unpaired t tests were used to compare measured asymmetry between groups. Measurements included nasion to endocathion, sn-sbal, subnasale to alare (sn-al), subnasale to crista philtra, subalare to crista philtra (sbal-cphi), chelion to crista philtra, lateral lip element fullness, medial lip element fullness (mef), and non-cleft lip fullness. Duplicate measurements allowed Pearson correlation to be used to determine intra-rater reliability. Statistical significance was set at P < .05. RESULTS: Degree of asymmetry of the nasal base, sn-al, and sn-sbal was significantly greater for patients with complete clefts (P = .0001, P = .0001). Hypoplasia of the lateral lip element was seen when comparing lateral and mef (P = .04, P = .004) and lateral lip height (sbal-cphi''; P = .002). The degree of cupid's bow asymmetry did not differ between groups (P = .23). Intrarater reliability was high for all facial measures, ranging from 0.70 to 0.99. CONCLUSIONS: More severe, complete cleft lips demonstrate statistically significant greater asymmetry in surgically relevant dimensions. There was greater width of the nasal base. Vertical asymmetry of cupid's bow was unaffected by cleft severity, but that asymmetry was greater in patients with complete clefts due to hypoplasia of the lateral lip element. This may contribute to the less favorable results in these patients.


Assuntos
Fenda Labial , Fissura Palatina , Fenda Labial/diagnóstico por imagem , Fenda Labial/cirurgia , Fissura Palatina/diagnóstico por imagem , Fissura Palatina/cirurgia , Humanos , Lactente , Lábio/diagnóstico por imagem , Nariz , Reprodutibilidade dos Testes
13.
Cleft Palate Craniofac J ; 57(9): 1061-1068, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32552007

RESUMO

OBJECTIVE: To identify factors that are commonly felt to impact a team's ability to ensure patients are orthodontically and dentally prepared for alveolar bone grafting at the appropriate time. DESIGN: Cross-sectional survey. SETTING: American Cleft Palate-Craniofacial Association (ACPA)-approved multidisciplinary cleft teams. PARTICIPANTS: Cleft team coordinators. INTERVENTIONS: Cleft team coordinators were asked to complete the survey. RESULTS: Fifty-three team coordinators from the 167 ACPA-certified cleft teams completed the survey (response rate = 32%). The majority (83.02%) of cleft teams feel having a case manager increases or would increase the rate of timely bone graft preparation. Orthodontic and dental coverage varied greatly between teams with university/hospital employed dentists and volunteer private practice orthodontists representing the most frequent models. The reported percentage of patients seeking regular dental and orthodontic care with providers affiliated with the team did not correlate with the likelihood of timely bone graft preparation (P = .17; P = .43). Great variability was noted in the manner and frequency of team communication with families during orthodontic bone graft preparation. The presence of a designated case manager on the team was not significantly associated with the percentage of patients who were reported to be orthodontically prepared for bone graft surgery (P = .25). CONCLUSION: Within our survey data, there is great variability noted in factors that may potentially impact orthodontic bone graft preparation. The majority of teams felt that a case manager did or would help with this process, however, our study does not support this fact. Significant recall bias concerning the success of bone graft preparation may affect these results.


Assuntos
Enxerto de Osso Alveolar , Fenda Labial , Fissura Palatina , Transplante Ósseo , Fissura Palatina/cirurgia , Estudos Transversais , Humanos , Ortodontistas , Inquéritos e Questionários
14.
J Craniofac Surg ; 31(6): 1734-1738, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32371693

RESUMO

PURPOSE: The purpose of this study is to examine the association between type of facial osteotomies performed during orthognathic surgery and postoperative outcomes including complications, length of stay, and readmission. METHODS: A retrospective review of orthognathic surgery cases from the Pediatric Health Information System (PHIS) database from 2004 to 2014 was undertaken. Osteotomy procedures were classified as Le Fort 1 (LF 1), Mandibular osteotomy, Genioplasty or their combinations. Primary outcome variable was major complications. Secondary outcomes included postoperative LOS > 1 day and 90-day readmission. Random-intercept logistic regression models were utilized to assess the association between the type of osteotomy performed and the outcomes. Bonferroni approach was used to account for multiple comparisons. RESULTS: The sample included 5413 patients, with a mean age of 17.1 ±â€Š1.68 years and 60.65% were female. The most common procedures were LF1 (39.4%), followed by bimaxillary surgery (23%). Major complications occurred in 8.57% of patients, postoperative LOS > 1 day in 52.4% and 90-day all-cause readmission in 11.16%. In adjusted analyses comparing LF1 compared to mandibular osteotomies, there were no significant differences for major complications (OR = 0.78), 90-day readmission rate (OR = 0.98). However, LF1 was associated with an increased odds for LOS compared to mandibular osteotomies (OR = 1.42). Addition of osteotomies is associated with a significant increase in LOS (P < 0.001). CONCLUSIONS: Patients undergoing orthognathic surgery demonstrated increased length of stay for LF1 or bimaxillary osteotomies. Osteotomy type did not impact the odds of readmission or complications. The trends revealed should be helpful for patient counseling.


Assuntos
Doenças Maxilomandibulares/cirurgia , Osteotomia Mandibular , Adolescente , Feminino , Mentoplastia , Humanos , Tempo de Internação , Masculino , Morbidade , Osteotomia de Le Fort , Estudos Retrospectivos
15.
J Craniofac Surg ; 31(3): 716-719, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32049900

RESUMO

BACKGROUND: Maxillomandibular advancement is an effective surgical option for obstructive sleep apnea (OSA) that achieves enlargement of the upper airway by physically expanding the facial skeleton. The authors sought to determine whether an advancement of 10 mm predicts surgical success and if any correlation existed between the magnitude of mandibular/maxillary advancement and improvement in polysomnography metrics using aggregated individual patient data from multiple studies. METHODS: A search of the PubMed database was performed to identify relevant articles that included preoperative and postoperative polysomnography data and measurements of the advancement of both the maxillary and mandibular portions of the face in patients with normal or class I malocclusion. Each patient was stratified into "Success" or "Failure" groups based on criteria defining a "Success" as a 50% preoperative to post-operative decrease in AHI or RDI and a post-operative AHI or RDI <20. RESULTS: A review of the PubMed database yielded 162 articles. Review of these resulted in 9 manuscripts and a total of 109 patients who met the inclusion criteria. There was no statistically significant difference in the amount of anterior advancement of either the mandible (P = 0.96) or the maxilla (P = 0.23) between the "Success" or "Failure" groups. CONCLUSIONS: While there is a paucity of individual data available, the current data does not support an ideal amount of maxillary or mandibular advancement that is required to obtain a surgical success in the treatment of OSA. Until a multicenter, prospective, randomized trial is performed, surgical planning should be tailored to patient-specific anatomy to achieve the desired result.


Assuntos
Má Oclusão Classe I de Angle/cirurgia , Apneia Obstrutiva do Sono/etiologia , Humanos , Má Oclusão Classe I de Angle/complicações , Mandíbula/fisiopatologia , Avanço Mandibular , Maxila/cirurgia , Polissonografia , Resultado do Tratamento
16.
BMC Chem ; 13(1): 86, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31384833

RESUMO

Pesticides and herbicides have been used extensively in agricultural practices to control pests and increase crop yields. Paraquat (PQT2+, 1,1-dimethyl-4,4-dipyridinium chloride) is one of the herbicide that belois classified as bipyridines and is used over the world. The objective of this study is to use ketoenol-pyrazole receptor functionalized silica hybrid as adsorbent for removal PQT2+ from aqueous solution. The adsorbent was synthesized, and characterized using scanning electron microscopy (SEM), nuclear magnetic resonance (NMR), Thermal analysis and other techniques. Different experimental parameters such as the effect of the amount of adsorbent, solution pH and temperatures and contact times were studied. Pseudo-order kinetics models were studied, and our data followed a pseudo second order. Experimental data were analyzed for both Langmuir and Freundlich models and the data fitted well with the Langmuir isotherm model. To understand the mechanism of adsorption, thermodynamic parameters like standard enthalpy, standard Gibbs free energy, and standard entropy were studied. The study indicated that the process is spontaneous, exothermic in nature and follow physisorption mechanisms. The novelty of this study showed surface of pyrazol-enol-imine-substituted silica (SiNPz) has the ability to highlight the surface designed for efficient removal of PQT2+, from aqueous solutions more than other studies. The study also showed that ketoenol-pyrazole receptor can be regenerated in five cycles using HNO3 without affecting its adsorption capacity.

17.
J Craniofac Surg ; 30(5): 1568-1571, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31299770

RESUMO

INTRODUCTION: Lateral cephalometric radiographs (LCR) have been the standard tool used for cephalometric analysis in craniofacial surgery. Over the past decade, a three-dimensional (3D) revolution in cephalometric analysis and surgical planning has been underway. To date, research has not validated whether cephalometric measurements taken from two-dimensional (2D) and 3D data sources are equivalent and interchangeable. The authors sought to compare angular cephalometric measurements taken with 2D and 3D modalities. METHODS: Sixty-two head CT scans (36 females, 26 males) with an average age of 63 ±â€Š20 years were studied. Twelve cephalometric angular measurements were taken from 3D reconstructed skulls using the software package Mimics 19.0 (Materialize; Leuven, Belgium). These same facial angles were measured from 2D lateral cephalograms reconstructed from the original CT scans using Dolphin 11.9. Measurements taken with both techniques were compared for agreement using a paired t test. Intra-class correlation coefficient assessment was used to determine inter-rater reliability. Statistical significance was set at P < 0.05. RESULTS: Five of the 12 angular measurements (SNA, SNB, MP-FH, U1-SN, and U1-L1) demonstrated statistically significant differences (P < 0.05) between the 2D and 3D analyses. All of these differences were less than the standard deviations for the respective measure. CONCLUSION: The differences between angular cephalometric values obtained from 2D LCRs and 3D CT reconstructions are small. This supports the practices of using 2D and 3D cephalometric data interchangeably in most applications. Clinicians must be selective in which measures they employ to maximize accuracy and care must be taken when measuring dental inclination with lateral cephalograms.


Assuntos
Cefalometria/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Face , Feminino , Humanos , Imageamento Tridimensional/métodos , Masculino , Pessoa de Meia-Idade , Radiografia Dentária , Reprodutibilidade dos Testes , Crânio/diagnóstico por imagem , Tomografia Computadorizada por Raios X
18.
Plast Reconstr Surg ; 144(2): 424-431, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31348354

RESUMO

BACKGROUND: Previous attempts to study the effect of prophylactic antibiotics on the outcomes of cleft palate surgery have been hampered by the need for a very large sample size to provide adequate power to discern a potentially small therapeutic effect. This limitation can be overcome by querying large databases created by health care governing bodies. METHODS: Data from the Pediatric Health Information System database were used for this analysis. Patients, aged 6 to 18 months, who had undergone primary palatoplasty (International Classification of Diseases, Ninth Revision, code 27.62) between 2004 and 2009 were included. Subsequent repair of an oronasal fistula between 2004 and 2015 was identified by International Classification of Diseases, Ninth Revision, procedure code 21.82. Pharmacy billing records were used to determine antibiotic administration. Associations between antibiotic administration and fistula repair were assessed using random-intercept logistic regression adjusting for age, sex, race, and cleft type. RESULTS: Seven thousand one hundred sixty patients were available for analysis; of these, 460 (6.4 percent) had a subsequent repair of an oronasal fistula. Fistula rates were 5.9, 11.4, and 5.2 percent among patients given preoperative antibiotics, only postoperative antibiotics, and no antibiotics, respectively (p < 0.001). Multivariable analysis results showed that the odds of having an oronasal fistula among patients who were administered preoperative antibiotics did not differ significantly (statistically) from patients who did not receive antibiotics (OR, 0.88; 95 percent CI, 0.59 to 1.31). CONCLUSIONS: The treatment goal of primary palatoplasty is the successful repair of the cleft without an oronasal fistula. Administration of preoperative antibiotics did not significantly reduce the odds of subsequent fistula repair within the same Pediatric Health Information System institution following primary palatoplasty. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, III.


Assuntos
Antibioticoprofilaxia/estatística & dados numéricos , Fissura Palatina/cirurgia , Fístula/cirurgia , Doenças Nasais/cirurgia , Fístula Bucal/cirurgia , Fenda Labial/cirurgia , Feminino , Humanos , Lactente , Masculino , Complicações Pós-Operatórias/cirurgia , Reoperação/estatística & dados numéricos , Infecção da Ferida Cirúrgica/prevenção & controle , Estados Unidos
19.
Pediatr Int ; 61(10): 978-981, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31219648

RESUMO

BACKGROUND: Alveolar soft-part sarcoma (ASPS) is an uncommon malignancy that may present in a manner similar to benign vascular tumors. METHODS: A 6-year-old boy with autism spectrum disorder was referred to the Johns Hopkins All Children's Hospital vascular anomalies clinic for the evaluation of a tongue mass. RESULTS: Prior to the presentation, at 5 years of age, neck computed tomography (CT) was performed. This showed a well circumscribed, enhancing mass at the anterior aspect of the tongue. The radiologic impression was that this lesion was most likely a hemangioma. Two years later, the patient was evaluated in the vascular anomalies clinic. At that examination a 2-3 cm swelling was noted on the dorsal aspect of the tongue. The mass was fleshy and firm with discrete borders. Handheld Doppler examination indicated a high-flow lesion. The patient underwent an excisional biopsy. The lesion was identified as an alveolar soft-part sarcoma based on pathologic characteristics. CONCLUSION: Familiarity with common vascular tumors and malformations allows providers to diagnose the majority of these lesions on a combination of clinical history and physical examination. Atypical and combined lesions do benefit from imaging to help characterize and aid in the differential diagnosis. Biopsy enables definitive diagnosis but is necessary in the minority of cases. When in doubt, referral to a specialized, multidisciplinary vascular anomalies clinic will ensure that these patients receive management for this challenging collection of conditions.


Assuntos
Transtorno do Espectro Autista/complicações , Sarcoma Alveolar de Partes Moles/diagnóstico , Neoplasias da Língua/diagnóstico , Neoplasias Vasculares/diagnóstico , Criança , Diagnóstico Diferencial , Humanos , Masculino , Sarcoma Alveolar de Partes Moles/complicações , Neoplasias da Língua/complicações , Neoplasias Vasculares/complicações
20.
Cleft Palate Craniofac J ; 56(9): 1206-1212, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-30943779

RESUMO

BACKGROUND: Cleft lip and palate are among the common birth defects in the United States. Management is complex and may be difficult for parents and patients to understand. The goal of this study was to evaluate the readability of online educational material provided by the American Society of Plastic Surgeons (ASPS) and the American Cleft Palate-Craniofacial Association (ACPA) websites regarding cleft lip and palate and to assess parents' comprehension. METHODS: Parents of children younger than 10 years of age presenting to the plastic and reconstructive surgery clinic at Johns Hopkins All Children's Hospital for conditions other than cleft lip and palate were recruited for participation. Parents were given the literature published on the ASPS and ACPA web sites to review and were asked to complete a 5-question test specifically targeted to the content of the passage they reviewed. We tested the readability of the 2 online passages using Readability Studio software (Oleander Software Solutions Ltd). RESULTS: Sixty parents completed the study. Across all groups, the mean score was 4.35 of a possible 5. The mean score was 4.4 for the ASPS web site and 4.29 for the ACPA web site. Fifty-three percent of participants answered all questions correctly. No significant difference in scores was noted between web sites (P = .48). CONCLUSIONS: Despite containing content of varying reading-level difficulty, the literature posted on the ACPA and ASPS web sites concerning cleft lip and palate conveyed information equally well to the target parent demographic with high levels of comprehension.


Assuntos
Fenda Labial/cirurgia , Fissura Palatina/cirurgia , Procedimentos de Cirurgia Plástica , Criança , Compreensão , Humanos
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