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40 citation(s) found for "O'Byrne, Thomas J".

Immunotherapy as a Downstaging Tool for Liver Transplantation in Hepatocellular Carcinoma
Mathur, Amit K. , Borad, M.J., Lam‐Himlin, Dora , Corey, Rebecca, Iqbal, Sara , Okubo, Keita , Byrne, Thomas , Moss, Adyr A. , Aqel, Bashar , Chascsa, David M. , Lizaola-Mayo, Blanca C, Lam-Himlin, Dora M, Corey, Rebecca L, Byrne, Thomas J., Lizaola‐Mayo, Blanca , Jadlowiec, Caroline C. , Iqbal, Sara, Aqel, Bashar A.

American Journal of Gastroenterology | February 8, 2022 | Volume: 116 | Issue: 12 | Pages: 2478-2480

10.14309/ajg.0000000000001391 | PMID 35134013 Get It

Recurrence Following Endoscopic Laser Wedge Excision and Triple Medical Therapy for Idiopathic Subglottic Stenosis
Bowen, Andrew J. , Xie, Katherine , O’Byrne, Thomas J., Bayan, Semirra L. , Edell, Eric S. , Vassallo, Robert , Ekbom, Dale C. , Kasperbauer, Jan L. , Bowen, Andrew Jay , Xie, Katherine Z , Vassallo, Robert , Bayan, Semirra

Otolaryngology–Head and Neck Surgery | January 25, 2022 | Volume: 167 | Issue: 3 | Pages: 524-530

10.1177/01945998221074684 | PMID 35077239 Get It

ObjectiveWe present the outcomes for patients with idiopathic subglottic stenosis (iSGS) following their first carbon dioxide laser wedge excision (LWE) procedure, additionally examining the effect of compliance with adjuvant medical therapy (triple therapy) after the operation.Study DesignRetrospective chart review.SettingTertiary center.MethodsA retrospective review was performed on 183 patients with iSGS following their first LWE and their compliance to adjuvant medical therapy (inhaled corticosteroid, proton pump inhibitor, trimethoprim‐sulfamethoxazole) following the operation, with all reviewed to December 31, 2020. The primary outcome variable was median time to recurrence (MTR). Patients were stratified by whether the LWE was their first operation (LWE primary or secondary), by compliance to triple therapy, and by compliance with trimethoprim‐sulfamethoxazole. Kaplan‐Meier analysis and Cox proportional hazards were used to evaluate the MTR across the stratifications.ResultsAn overall 113 patients underwent their first LWE, while 70 received the procedure after having undergone 1 to 13 procedures. The MTR between LWE primary and secondary was 4.6 and 2.9 years, respectively. Adjusted Cox proportional hazards comparing these 2 groups revealed the number of prior operations to be a confounding variable. A statistically increased MTR was demonstrated with greater degrees of medical compliance.ConclusionLWE conferred an MTR of 4.1 years in the iSGS cohort. The number of prior procedures preceding LWE behaved as a confounding variable. Patients who were completely or partially compliant to triple therapy appear to demonstrate increased intervals prior to recurrence.
Solid Organ Transplantation From SARS-CoV-2–infected Donors to Uninfected Recipients: A Single-center Experience
Jayasekera, Channa R., Vikram, Holenarasipur R., Rifat, Zeeshan, Wagler, Josiah, Okubo, Keita, Braaksma, Brandon R., Harbell, Jack W., Jadlowiec, Caroline C., Katariya, Nitin N., Mathur, Amit K., Moss, Adyr, Reddy, K. Sudhakar, Singer, Andrew, Orenstein, Robert, Saling, Christopher F., Seville, Maria T., Mour, Girish K., Vargas, Hugo E., Byrne, Thomas J., Hewitt, Winston R., Aqel, Bashar A., Vargas, Hugo E. , Vikram, Holenarasipur R. , Katariya, Nitin , Vikram, Holenarasipur R. , Vargas, Hugo E , Katariya, Nitin N , Jayasekera, Channa R., Rifat, Zeeshan, Wagler, Josiah, Okubo, Keita, Braaksma, Brandon R., Harbell, Jack W., Jadlowiec, Caroline C., Mathur, Amit K., Moss, Adyr, Reddy, K. Sudhakar, Singer, Andrew, Orenstein, Robert, Saling, Christopher F., Seville, Maria T., Mour, Girish K., Byrne, Thomas J., Hewitt, Winston R., Aqel, Bashar A., Okubo, Keita

Transplantation Direct | January 13, 2022 | Volume: 8 | Issue: 2 | Pages: e1286

10.1097/txd.0000000000001286 | PMID 35047665 Get It

Background. The risk of donor-derived severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in solid organ (heart, lung, liver, kidney, pancreas, and intestine) transplant recipients is poorly understood. Since hematogenous transmission of SARS-CoV-2 has not been documented to date, nonlung solid organs might be suitable for transplantation since they likely portend a low risk of viral transmission. Methods. Abdominal solid organs from SARS-CoV-2–infected donors were transplanted into uninfected recipients. Results. Between April 18, 2021, and October 30, 2021, we performed transplants of 2 livers, 1 simultaneous liver and kidney, 1 kidney, and 1 simultaneous kidney and pancreas from SARS-CoV-2–infected donors into 5 uninfected recipients. None of the recipients developed SARS-CoV-2 infection or coronavirus disease 2019, and when tested, allograft biopsies showed no evidence of SARS-CoV-2 RNA. Conclusions. Transplanting nonlung organs from SARS-CoV-2–infected donors into uninfected recipients demonstrated no evidence of virus transmission.
Risk of hydroxychloroquine retinopathy in the community
Dabit, Jesse Y. , Hocaoǧlu, Mehmet , Moder, Kevin G., Smith, Wendy M. , O’Byrne, Thomas J., Crowson, Cynthia S. , Duarte‐García, Alí , Duarte-García, Alí , Barkmeier, Andrew J.

Rheumatology | November 8, 2021 | Volume: 61 | Issue: 8 | Pages: 3172-3179

10.1093/rheumatology/keab844 | PMID 34788400 Get It

Abstract Objectives We aimed to estimate the risk of HCQ retinopathy and its risk factors among incident users in the community. Methods Using the Rochester Epidemiology Project, a record-linkage system, a cohort of incident users of HCQ was identified from 27 counties in the American upper Midwest. HCQ retinopathy was defined based on characteristic paracentral automated 10-2 visual field (10-2 AVF) defects and parafoveal retinal photoreceptor layer changes on spectral domain optical coherence tomography. Cumulative incidence rates were estimated adjusting for competing risk of death. Risk factors for HCQ retinopathy were examined using Cox models. Results The study included 634 incident HCQ users (mean age at initial HCQ use was 53.7 years, 79% females, 91% white). Most common indications for HCQ were RA (57%) and SLE (19%). The average follow-up length was 7.6 years. Eleven patients developed HCQ retinopathy (91% females, 91% white). The majority used HCQ for RA (91%). The cumulative incidence rate at year 5 was 0%, which increased to 3.9% (95% CI 2.0, 7.4) by 10 years. Taking an HCQ dose ≥5 mg/kg was associated with a hazard ratio (HR) of 3.59 (95% CI 1.09, 11.84) compared with lower doses. There was a 48% increase [HR 1.48 (95% CI 1.03, 2.14)] in the risk of HCQ retinopathy for each 100 g of HCQ cumulative dose. Conclusion The risk of HCQ retinopathy at 10 years of use is lower compared with previous prevalence-based estimations. A dose ≥5 mg/kg was associated with higher HCQ retinopathy risk.
Short and long‐term outcomes of three‐dimensional printed surgical guides and virtual surgical planning versus conventional methods for fibula free flap reconstruction of the mandible: Decreased nonunion a
May, Matthew M. , Howe, Benjamin M., O’Byrne, Thomas J., Alexander, Amy E. , Morris, Jonathon M., Moore, Eric J. , Kasperbauer, Jan L. , Janus, Jeffrey R. , Abel, Kathryn M. Van , Dickens, Hunter J., Van Abel, Kathryn M , Howe, Benjamin M. , Price, Daniel L.

Head & Neck | March 31, 2021 | Volume: 43 | Issue: 8 | Pages: 2342-2352

10.1002/hed.26688 | PMID 33786910 Get It

Abstract Background To determine whether virtual surgical planning and three‐dimensional printed cutting guides (3D/VSP) improved radiographic bone union compared to conventional methods (CM) in fibula free flap (FFF) reconstruction of the mandibles. Methods Retrospective study from the years 2000–2018 at a tertiary hospital. Osseous union was evaluated by a radiologist blinded to each patient's treatment. Results Two hundred sixty patients who underwent FFF tissue transfer, 28 with VSP and 3D cutting guides. Bony union was not achieved in 46 (20%) patients who underwent CM compared to 1 (4%) of patients with VSP and guides ( p = 0.036). FFF complication was significantly higher in CM with 87 patients (38%) compared to three patients (11%) in 3D/VSP ( p = 0.005). Median time to bony union for patients who underwent CM was 1.4 years compared to 0.8 years in 3D/VSP. Conclusions 3D/VSP reduced the rate of radiographic nonunion and flap‐related complications in FFF reconstruction for mandibular defects.
Disease Profile and Oncologic Outcomes After Delayed Diagnosis of Human Papillomavirus–Associated Oropharyngeal Cancer
Karp, Emily E. , Elias, Anna , O’Byrne, Thomas J., Routman, David M. , Kasperbauer, Jan L. , Neben-Wittich, M.A. , Price, Katharine A. , Foote, Robert L. , Moore, Eric J. , Abel, Kathryn M. Van , O'Byrne, Thomas J, Neben-Wittich, Michelle, Van Abel, Kathryn M , Routman, David M , Yin, Linda X. , Price, Daniel L. , Chintakuntlawar, Ashish V. , Daniel, J.

Otolaryngology–Head and Neck Surgery | March 23, 2021 | Volume: 165 | Issue: 6 | Pages: 830-837

10.1177/01945998211000426 | PMID 33752487 Get It

ObjectiveDiagnostic delay in human papillomavirus–associated oropharynx squamous cell carcinoma (HPV(+)OPSCC) is common due to nonspecific symptoms. We aim to describe the disease burden and oncologic outcomes of patients with HPV(+)OPSCC diagnosed >12 months after symptom onset.Study DesignThis is a retrospective cohort study of HPV(+)OPSCC patients receiving intent‐to‐cure treatment (including surgery ± adjuvant therapy or primary chemoradiation).Setting2006‐2016, tertiary care center.MethodsTumor stage was compared between patients with and without delayed diagnosis using χ2 tests. Kaplan‐Meier survival analysis with univariate and multivariable Cox regressions were used to determine the effect of diagnostic delay on oncologic outcomes.ResultsIn total, 664 patients were included. Compared to patients diagnosed <12 months from symptom onset (n = 601), those diagnosed at >12 months (n = 63) were more likely to have T4 disease and higher overall American Joint Committee on Cancer (AJCC) clinical stage at presentation (P <. 01 for both). At 5 years, rates of overall survival, cancer‐specific survival, progression‐free survival, and distant metastases–free survival in the delayed diagnosis cohort were 80%, 90%, 80%, and 89%, respectively. A >12‐month delay in diagnosis did not significantly impact overall survival (adjusted hazard ratio [aHR], 1.16; 95% CI, 0.58‐2.31), cancer‐specific survival (aHR, 0.83; 95% CI, 0.29‐2.39), progression‐free survival (aHR, 1.15; 95% CI, 0.56‐2.37), or distant metastases–free survival (aHR, 1.00; 95% CI, 0.42‐2.40) after adjusting for age, sex, and clinical AJCC stage (P >. 05 for all).ConclusionsDelayed diagnosis of HPV(+)OPSCC is associated with greater burden of disease at presentation, but oncologic outcomes remain favorable across treatment modalities. When appropriate, intent‐to‐cure therapy should be pursued despite diagnostic delay.Level of EvidenceLevel III.
Phase IB Study of Sorafenib and Evofosfamide in Patients with Advanced Hepatocellular and Renal Cell Carcinomas (NCCTG N1135, Alliance)
Tran, Nguyen H. , Foster, Nathan R. , Byrne, Thomas , Silva, Alvin, Mody, Kabir , Tran, Nguyen , Mahipal, Amit , Hubbard, Joleen M. , Alberts, Steven R. , Borad, Mitesh J.

No container title available | February 24, 2021 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.21203/rs.3.rs-234613/v1 Get It

Abstract Background: Sorafenib (Sor) remains a first-line option for hepatocellular carcinoma (HCC) or refractory renal cell carcinomas (RCC). PLC/PRF/5 HCC model showed upregulation of hypoxia with enhanced efficacy when Sor is combined with hypoxia-activated prodrug evofosfamide (Evo). Methods: This phase IB 3 + 3 design investigated 3 Evo dose levels (240, 340, 480 mg/m2 on days 8, 15, 22), combined with Sor 200 mg orally twice daily (po bid) on days 1-28 of a 28-day cycle. Primary objectives included determining maximum tolerated dose (MTD) and recommended phase II dose (RP2D) of Sor + Evo. Results: Eighteen patients were enrolled (median age 62.5 years; 17 male /1 female; 12 HCC/6 RCC) across three dose levels (DL0: Sor 200 mg bid/Evo 240 mg/m2 [n=6], DL1:Sor 200 mg bid/Evo 480 mg/m2 [n=5], DL1a: Sor 200 mg bid/Evo 340 mg/m2 [n=7]). Two dose-limiting toxicities (DLTs) were reported with Evo 480 mg/m2 (grade 3 mucositis, grade 4 hepatic failure). Grade 3 rash DLT was observed in one patient at Evo 240 mg/m2. No DLTs were observed at Evo 340 mg/m2. MTD and RP2D were established as Sor 200 mg/Evo 340 mg/m2 and Sor 200/Evo 240 mg/m2, respectively. The most common treatment-related adverse events included fatigue, hand-foot syndrome, hypertension, and nausea/vomiting. Two partial responses were observed, one each at DL0 and DL1a.; disease control rate was 55%.Conclusions: RP2D was established as sorafenib 200 mg bid + Evo 240 mg/m2. While preliminary anti-tumor activity was observed, future development must account for advances in immunotherapy in HCC/RCC. NCT01497444Date of registration December 20, 2011
Barriers to Obtaining a Timely Diagnosis in Human Papillomavirus–Associated Oropharynx Cancer
Karp, Emily E. , Moore, Eric J. , Elias, Anna , O’Byrne, Thomas J., Glasgow, Amy E. , Habermann, Elizabeth B. , Kasperbauer, Jan L. , Abel, Kathryn M. Van , Glasgow, Amy E. , Elias, Anna J , O'Byrne, Thomas J, Van Abel, Kathryn M , Habermann, Elizabeth , Glasgow, Amy E , Yin, Linda X. , Price, Daniel L.

Otolaryngology–Head and Neck Surgery | January 26, 2021 | Volume: 165 | Issue: 2 | Pages: 300-308

10.1177/0194599820982662 | PMID 33494648 Get It

ObjectiveFailure to recognize symptoms of human papillomavirus–associated oropharyngeal squamous cell carcinoma (HPV(+)OPSCC) at presentation can delay diagnosis and treatment. This study aims to identify patient factors and provider patterns that contribute to delayed diagnosis.Study DesignRetrospective case series.SettingTertiary care center.MethodsPatients with HPV(+)OPSCC receiving intent‐to‐cure treatment from 2006 to 2016. Clinical data, workup, and care timelines were abstracted. Univariate and multivariable linear regressions were performed to determine associations.ResultsOf 703 included patients, 627 (89%) were male, and mean (SD) age at diagnosis was 59 (9) years. The mean (SD) delay to diagnosis was 148.8 (243.51) days, with an average delay of 63 (154.91) days from symptom onset to first presentation and 82.8 (194.25) days from first presentation to diagnosis. Most patients visited at least 2 providers (n = 546, 78%) before diagnosis and saw their primary care physician at first presentation (n = 496, 71%). The most common imaging and biopsy obtained before diagnosis was neck computed tomography (n = 391, 56%) and neck fine‐needle aspiration (n = 423, 60%), respectively. On multivariable linear regression, being a homemaker, being a current smoker, seeing 3 or more providers, and getting a magnetic resonance imaging scan were associated with significant delays in diagnosis (P <. 01, all). Treatment with antibiotics and a suspicion for HPV(+)OPSCC at first presentation were associated with decreased delays in diagnosis (P <. 01, both).ConclusionsPatient delays in seeking medical attention and provider delays in recognizing the appropriate diagnosis both contribute to delays of care in HPV(+)OPSCC. Improved patient and provider education is necessary to expedite the diagnosis of HPV(+)OPSCC.
Infection and Risk of Parkinson’s Disease
Noyce, Alastair J. , Byrne, Matthew , Savica, Rodolfo , Noyce, Alastair J , Smeyne, Richard Jay , Marras, Connie

Journal of Parkinson's Disease | December 22, 2020 | Volume: 11 | Issue: 1 | Pages: 31-43

10.3233/jpd-202279 | PMID 33361610 Get It

Parkinson’s disease (PD) is thought to be caused by a combination of genetic and environmental factors. Bacterial or viral infection has been proposed as a potential risk factor, and there is supporting although not entirely consistent epidemiologic and basic science evidence to support its role. Encephalitis caused by influenza has included parkinsonian features. Epidemiological evidence is most compelling for an association between PD and hepatitis C virus. Infection with Helicobacter pylori may be associated not only with PD risk but also response to levodopa. Rapidly evolving knowledge regarding the role of the microbiome also suggests a role of resident bacteria in PD risk. Biological plausibility for the role for infectious agents is supported by the known neurotropic effects of specific viruses, particular vulnerability of the substantia nigra and even the promotion of aggregation of alpha-synuclein. A common feature of implicated viruses appears to be production of high levels of cytokines and chemokines that can cross the blood-brain barrier leading to microglial activation and inflammation and ultimately neuronal cell death. Based on multiple avenues of evidence it appears likely that specific bacterial and particularly viral infections may increase vulnerability to PD. The implications of this for PD prevention requires attention and may be most relevant once preventive treatments for at-risk populations are developed.
Development and Validation of a Risk Stratification Model Using Disease Severity Hierarchy for Mortality or Major Cardiovascular Event
O’Byrne, Thomas J., Chen, David , Shah, Nilay D. , Steinbach, Michael , Simon, György , Caraballo, Pedro J. , O'Byrne, Thomas J, Ngufor, Che , Pruinelli, Lisiane

JAMA Network Open | July 17, 2020 | Volume: 3 | Issue: 7 | Pages: e208270

10.1001/jamanetworkopen.2020.8270 | PMID 32678448 Get It