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Rossi NA, Benavidez M, Nuti SA, Hajiyev Y, Hughes CA, Pine HS. Viral voices: A multi-platform analysis of tonsillectomy on social media. Int J Pediatr Otorhinolaryngol 2024; 176:111816. [PMID: 38104524 DOI: 10.1016/j.ijporl.2023.111816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/25/2023] [Accepted: 11/29/2023] [Indexed: 12/19/2023]
Abstract
OBJECTIVES To assess the influence of social media platforms, including TikTok, Instagram, and Facebook, in shaping public perceptions about tonsillectomies and to identify the nature of the content disseminated on these platforms. METHODS A comprehensive analysis of 1482 relevant social media posts related to tonsillectomies was conducted across major platforms, including TikTok, Instagram, and Facebook. Content was categorized based on author, topic of the post, timeframe, and overall tone. The study also compared engagement metrics across platforms. RESULTS TikTok emerged as the most engaging platform with a mean of 3272.8 likes per post. Patients drove 61.6 % of the discourse, with 63.9 % of discussions being lifestyle oriented. Educational content constituted 12.5 % of the overall discourse. Sentiments towards the procedure were almost evenly split, with 29.4 % positive and 28.5 % negative; 92 % of the negative posts were authored by patients. CONCLUSIONS Patients were the most common social media authors, driving the conversation and a significant portion expressing negative views. Physicians, conversely, showed a low level of social media engagement. By understanding and addressing online narratives, clinicians can offer more informed patient support, debunk myths, and provide empathetic insights, ensuring positive patient experiences in the era of digital health communication.
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Affiliation(s)
- Nicholas A Rossi
- Department of Otolaryngology - Head & Neck Surgery, University of Texas Medical Branch, Galveston, TX, USA.
| | - Mia Benavidez
- School of Medicine, University of Texas Medical Branch, Galveston, TX, USA
| | - Shiva A Nuti
- School of Medicine, University of Texas Medical Branch, Galveston, TX, USA
| | - Yusif Hajiyev
- Department of Otolaryngology - Head & Neck Surgery, University of Texas Medical Branch, Galveston, TX, USA
| | - Charles A Hughes
- Department of Otolaryngology - Head & Neck Surgery, University of Texas Medical Branch, Galveston, TX, USA
| | - Harold S Pine
- Department of Otolaryngology - Head & Neck Surgery, University of Texas Medical Branch, Galveston, TX, USA
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Rossi NA, George SS, Pine HS. Dr Byron J. Bailey: The Life and Legacy of an Educator, Humanitarian, and Leader. Otolaryngol Head Neck Surg 2024; 170:305-308. [PMID: 37449434 DOI: 10.1002/ohn.424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/11/2023] [Accepted: 06/29/2023] [Indexed: 07/18/2023]
Abstract
Dr Byron J. Bailey, a preeminent figure in the field of Otolaryngology, exemplified an unwavering commitment to patient care, resident education, research excellence, and humanitarian endeavors throughout his illustrious career. Born in 1934, Dr Bailey played a pivotal role in the growth and success of the Department of Otolaryngology at the University of Texas Medical Branch. A dedicated educator and researcher, he authored groundbreaking research and the seminal textbook, Bailey's Head and Neck Surgery-Otolaryngology. His leadership in major organizations and commitment to research integrity and quality are hallmarks of his career. Dr Bailey's philanthropic pursuits include improving Otolaryngology care and access in Vietnam and Cuba, and local community efforts in Galveston, Texas. His enduring legacy continues to inspire future generations of Otolaryngologists, serving as a testament to the power of perseverance and dedication to excellence in the pursuit of medical education.
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Affiliation(s)
- Nicholas A Rossi
- School of Medicine, University of Texas Medical Branch, Galveston, Texas, USA
| | - Sachin S George
- School of Medicine, University of Texas Medical Branch, Galveston, Texas, USA
| | - Harold S Pine
- Department of Otolaryngology-Head and Neck Surgery, University of Texas Medical Branch, Galveston, Texas, USA
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LaHaye JJ, Moffatt DC, Dunmire A, Corona KK, Rossi NA, Siddiqui FN. A social media analysis examining new-age devices of the rhinology industry. Int Forum Allergy Rhinol 2023; 13:2092-2095. [PMID: 37178369 DOI: 10.1002/alr.23176] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 05/02/2023] [Accepted: 05/08/2023] [Indexed: 05/15/2023]
Abstract
KEY POINTS We analyzed social media posts on Facebook and Instagram discussing new rhinologic devices. Patient posts are a valuable source of patient perspective regarding rhinologic procedures. The majority of posts are by physicians giving information and advertising these new procedures.
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Affiliation(s)
- Joshua J LaHaye
- School of Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - David C Moffatt
- Department of Surgery, The Pennsylvania State University, College of Medicine, Hershey, Pennsylvania, USA
| | - Amber Dunmire
- School of Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Kassandra K Corona
- School of Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Nicholas A Rossi
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Farrah N Siddiqui
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
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Moffatt DC, Lahaye JJ, Corona KK, Rossi NA, Joshi R, Resto V, McKinnon BJ, Coblens OM. Laryngectomy: Social media analysis of patient perception. Head Neck 2023; 45:464-472. [PMID: 36515649 DOI: 10.1002/hed.27261] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 10/12/2022] [Accepted: 11/28/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Social media continues to grow as a relevant information source for the lay public and medical professionals. METHODS A search of posts on Facebook and Instagram was conducted using the hashtag #laryngectomy. Posts were categorized based upon perspective, media type, timeframe, topic, tone, and popularity. RESULTS Final analysis included 929 Instagram posts and 355 Facebook posts. Most Facebook posts were made by companies (38%) and physicians (17%) with information (30%) and advertisements (22%) being common topics. Patients (40%) were the largest group of Instagram authors with lifestyle (39%) being the most common topic. Greater than 90% of posts were either neutral or positive in tone across both platforms. CONCLUSIONS Patient perspective was most commonly represented on Instagram, whereas Facebook more commonly included posts by physicians and companies. The majority of posts carried a neutral or positive tone, which is consistent with positive quality of life patients have shown postoperatively.
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Affiliation(s)
- David C Moffatt
- Department of Surgery, The Pennsylvania State University, College of Medicine, Hershey, Pennsylvania, United States
| | - Joshua J Lahaye
- School of Medicine, University of Texas Medical Branch, Galveston, Texas, USA
| | - Kassandra K Corona
- School of Medicine, University of Texas Medical Branch, Galveston, Texas, USA
| | - Nicholas A Rossi
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Rohan Joshi
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Vicente Resto
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Brian J McKinnon
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Orly M Coblens
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
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Rossi NA, Devarajan K, Chokshi SN, Ochoa VJ, Benavidez M, Malaya LT, Ohlstein JF, Young DL, McKinnon BJ. Social Media Depictions of Cochlear Implants: An Instagram and TikTok Analysis. Otol Neurotol 2023; 44:e13-e21. [PMID: 36509437 DOI: 10.1097/mao.0000000000003744] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To identify populations of authors who post about cochlear implants (CIs) on Instagram and TikTok, to illustrate the content of these posts, and to elucidate factors that might help surgeons better educate CI patients. STUDY DESIGN Qualitative study. SETTING Instagram and TikTok social media platforms. PATIENTS All public social media posts identified with the search terms below. Posts were excluded if unrelated to CIs or if written in a non-English language. INTERVENTION Instagram and TikTok were searched for posts from March 2021 through September 2021 with the search terms #cochlearimplant, #cochlearimplants, #cochlearimplantkids, #cochlearkids, and #cochlearfamily. MAIN OUTCOME MEASURES Posts were subclassified and analyzed for content including topics of posts, authorship, timeframe of posts, depiction of CIs, and popularity. RESULTS Of 1,942 posts included in the final analysis, 1,400 were found on Instagram and 542 on TikTok. Authors were mostly patients (n = 771, 39.7%), companies (n = 568, 29.2%), and patients' family members (n = 482, 24.8%). Only 21 posts were made by physicians (1.1%). Out of 379 total educational posts examined, patients themselves were the most common authors (n = 219, 57.8%) followed by patients' family members (n = 139, 36.7%). Physicians authored only a small fraction of all educational posts (n = 19, 5.0%). CONCLUSIONS This study showed minimal physician involvement in the CI social media spheres of Instagram and TikTok. In addition, there were few educational posts on either platform, revealing ample opportunity for physicians to become more involved with CI social media.
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Affiliation(s)
- Nicholas A Rossi
- Department of Otolaryngology-Head and Neck Surgery, University of Texas Medical Branch
| | - Karthik Devarajan
- Department of Otolaryngology-Head and Neck Surgery, University of Texas Medical Branch
| | - Shivan N Chokshi
- School of Medicine, University of Texas Medical Branch, Galveston, Texas
| | - Vanesa J Ochoa
- School of Medicine, University of Texas Medical Branch, Galveston, Texas
| | - Mia Benavidez
- School of Medicine, University of Texas Medical Branch, Galveston, Texas
| | - Lauren T Malaya
- School of Medicine, University of Texas Medical Branch, Galveston, Texas
| | - Jason F Ohlstein
- Department of Otolaryngology, St. Luke's University Hospital, Bethlehem, Pennsylvania
| | - Dayton L Young
- Department of Otolaryngology-Head and Neck Surgery, University of Texas Medical Branch
| | - Brian J McKinnon
- Department of Otolaryngology-Head and Neck Surgery, University of Texas Medical Branch
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Colasurdo M, Edhayan G, Rossi NA, Coblens OM, Raghuram K. Transradial embolization of a life-threatening tooth extraction socket hemorrhage and pseudoaneurysm. Interv Neuroradiol 2022:15910199221142645. [PMID: 36445070 DOI: 10.1177/15910199221142645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024] Open
Abstract
Embolization of oral hemorrhages due to tooth extraction, although rare, has been previously described.1-4 In this video we present a unique case in which a life-threatening tooth extraction hemorrhage was incontrollable with local compression or surgical cauterization. The patient underwent emergent transradial coil embolization5 of the posterior lateral nasal branches of the sphenopalatine artery. However, the patient returned 11 days later with a lower volume bleed at the original site. Computed tomography angiography showed a pseudoaneurysm at the orthognathic surgery crater retrogradely recanalized through the greater palatine arcade. Surgical options were deemed too invasive, and the decision was made to attempt percutaneous direct puncture embolization. This was unsuccessful and repeat embolization with Onyx was performed through the contralateral greater palatine artery. The patient had complete resolution of symptoms.
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Affiliation(s)
- Marco Colasurdo
- Department of Radiology, Division of Neuroradiology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Gautam Edhayan
- Department of Radiology, Division of Neuroradiology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Nicholas A Rossi
- Department of Otoralyngology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Orly M Coblens
- Department of Otoralyngology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Karthikram Raghuram
- Department of Radiology, Division of Neuroradiology, The University of Texas Medical Branch, Galveston, TX, USA
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Rossi NA, Freeman CG, Ohlstein JF, Daram S, Darling RA, McKinnon BJ, Pine HS. Surgeon Preference on Sending Routine Tonsillectomy Specimens for Pathological Evaluation. Ear Nose Throat J 2022:1455613221112761. [PMID: 35939505 DOI: 10.1177/01455613221112761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
INTRODUCTION Despite the presence of a growing body of literature suggesting cost-ineffectiveness of routine pathologic analysis of tonsillectomy specimens, little is known about common institutional policies and practice patterns of pediatric otolaryngologists. The objectives of this study were to determine the prevalence of routine pathological evaluation of tonsillectomy specimens for uncomplicated pediatric adenotonsillectomy procedures and to evaluate opinions regarding this controversy among board-certified pediatric otolaryngologists. METHODS This was a cross-sectional survey study sent to board-certified pediatric otolaryngologists currently practicing and registered with the American Society of Pediatric Otolaryngology (ASPO) assessing their institutions' or practices' current policies on sending routine tonsillectomy specimens for pathology, their experience with this practice, and their opinions on whether routine pathologic analysis should be employed. Basic statistical analysis was then conducted. RESULTS Respondents mostly practiced in an academic setting (68.4%), with the next most common being academically affiliated private practice (21.8%), and private practice was the least common (9.8%). Most respondents (85.1%) did not agree with routine pathologic analysis of otherwise uncomplicated pediatric tonsillectomy specimens. CONCLUSION Most pediatric otolaryngologists who responded to this survey do not support routine pathological analysis of otherwise uncomplicated pediatric tonsillectomy specimens. However, the results are likely biased and should be interpreted carefully, since only a small percentage of pediatric otolaryngologists responded to the survey. Potential cost savings could be seen by patients, payers, and hospital systems with judicious use of surgical pathology, specifically in cases with concurrent signs or symptoms suspicious for malignancy.
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Affiliation(s)
- Nicholas A Rossi
- Department of Otolaryngology - Head & Neck Surgery, University of Texas Medical Branch, Galveston, TX, USA
| | - Cecilia G Freeman
- Department of Otolaryngology, St. Luke's University Health Network, Bethlehem, PA, USA
| | - Jason F Ohlstein
- Department of Otolaryngology, St. Luke's University Health Network, Bethlehem, PA, USA
| | - Shiva Daram
- Department of Otolaryngology - Head & Neck Surgery, University of Texas Medical Branch, Galveston, TX, USA
| | - Robert A Darling
- Department of Otolaryngology - Head & Neck Surgery, University of Texas Medical Branch, Galveston, TX, USA
| | - Brian J McKinnon
- Department of Otolaryngology - Head & Neck Surgery, University of Texas Medical Branch, Galveston, TX, USA
| | - Harold S Pine
- Department of Otolaryngology - Head & Neck Surgery, University of Texas Medical Branch, Galveston, TX, USA
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Rossi NA, Benavidez M, Pine HS, Daram S, Szeremeta W. Surgical Management of Choanal Atresia: Two Classic Cases and Review of the Literature. Cureus 2022; 14:e24259. [PMID: 35607544 PMCID: PMC9123360 DOI: 10.7759/cureus.24259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/15/2022] [Indexed: 11/26/2022] Open
Abstract
Choanal atresia is a rare congenital airway malformation that presents a unique surgical challenge for pediatric otolaryngologists. Here we report two classic cases of choanal atresia and examine the surgical approaches to this entity. The first case was a four-day-old female with a history of CHARGE syndrome and bilateral mixed membranous and bony choanal atresia confirmed by a CT scan. After undergoing transnasal endoscopic repair, choanal stents were placed for four weeks, and the patient was seen three months postoperatively and found to be doing well with no respiratory concerns. The second case involved a healthy three-year-old female presenting with unilateral combined membranous and bony atresia. Following successful endoscopic repair, she was seen at a three-month follow-up with no signs of restenosis. Additionally, a literature review was performed to evaluate updates since the 2012 Cochrane Review on surgical treatment of congenital choanal atresia.
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Swonke ML, Neve L, Rossi NA, McKinnon B, Daram S, Pine HS. Misophonia: An Underrecognized Disease in Pediatric Patients. Ear Nose Throat J 2022:1455613221095606. [PMID: 35414290 DOI: 10.1177/01455613221095606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Misophonia is a chronic condition in which patients experience a strong negative, emotional, or psychologic reaction to specific sounds. These sounds cause the individual to have a sudden, uncontrolled, and disproportionate negative reaction affecting their daily activities. The literature describes several cases of misophonia in the adult population; however, only 2 pediatric case studies are reported. Herein, we present 2 additional cases. An exaggerated response to an auditory stimulus is observed in other disorders such as tinnitus, hyperacusis, migraines, and many psychiatric disorders. Sound aversion has a broad differential diagnosis and may require visits to numerous specialists, placing strain on the patient and the healthcare system. Furthermore, misophonia is underdiagnosed in the pediatric population as it requires self-reporting of symptoms. The pathophysiology, prevalence, and treatment of misophonia continue to be relatively unknown. We attempt to highlight this rarely reported pediatric diagnosis and elaborate on its clinical presentation to increase awareness among otolaryngologists.
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Affiliation(s)
- Megan L Swonke
- Department of Otolaryngology-Head and Neck Surgery, 12338University of Texas Medical Branch, Galveston, TX, USA
| | - Luis Neve
- Department of Otolaryngology-Head and Neck Surgery, 12338University of Texas Medical Branch, Galveston, TX, USA
| | - Nicholas A Rossi
- Department of Otolaryngology-Head and Neck Surgery, 12338University of Texas Medical Branch, Galveston, TX, USA
| | - Brian McKinnon
- Department of Otolaryngology-Head and Neck Surgery, 12338University of Texas Medical Branch, Galveston, TX, USA
| | - Shiva Daram
- Department of Otolaryngology-Head and Neck Surgery, 12338University of Texas Medical Branch, Galveston, TX, USA
| | - Harold S Pine
- Department of Otolaryngology-Head and Neck Surgery, 12338University of Texas Medical Branch, Galveston, TX, USA
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Rossi NA, French KR, Evans CL, Ohlstein JF, Neve LD, Daram S, Young DL, McKinnon BJ, Pine HS. Trending Tubes: A Social Media Analysis of Tympanostomy Tubes in Children. OTO Open 2022; 6:2473974X221086964. [PMID: 35387357 PMCID: PMC8977724 DOI: 10.1177/2473974x221086964] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 02/23/2022] [Indexed: 11/17/2022] Open
Abstract
Objective To investigate the popular social media platforms Instagram and Facebook for
public posts related to tympanostomy tubes in children, to discern attitudes
and perceptions surrounding tympanostomy tubes, and to evaluate the content
of social media posts related to tympanostomy tubes. Study Design Qualitative study. Setting Instagram and Facebook social media platforms. Methods Instagram and Facebook were searched for public posts from 2018 and 2019
including the search terms “ear tubes,”“ear tube surgery,”“tympanostomy,”
and “myringotomy.” Posts were excluded if they were unrelated to pediatric
tympanostomy tubes or written in a non-English language. Relevant posts
underwent subgroup analysis based on 6 domains: media type, perspective,
topic, timeframe, popularity, and overall tone. Results Of 1862 public social media posts, the majority (78.2%) were made by the
patient’s parents/caregivers and the rest by physicians (6.0%), hospitals
(8.2%), and chiropractors (6.1%), with a few posts by the patients
themselves (0.4%). The majority (79.3%) of posts portrayed tympanostomy
tubes positively. Most negative posts were made by chiropractors (50.8%) and
the patient’s parents/caregivers (42.9%). The most common themes of posts
were reassurance regarding surgery (74.9%), advertisements (12.5%),
apprehension (12.4%), and education (10.3%). Conclusion Most social media posts were made by parents/caregivers in the perioperative
period, and there was a low percentage of educational posts. This
information could be used by otolaryngologists to optimize their
interactions with patients and parents and to potentially increase physician
involvement and educational material related to tympanostomy tubes on social
media.
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Affiliation(s)
- Nicholas A. Rossi
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Katherine R. French
- Department of Pediatrics, Baylor College of Medicine, Children’s Hospital of San Antonio, San Antonio, Texas, USA
| | - Chad L. Evans
- School of Medicine, University of Texas Medical Branch, Galveston, Texas, USA
| | - Jason F. Ohlstein
- Department of Otolaryngology, St Luke’s University Hospital, Bethlehem, Pennsylvania, USA
| | - Luis D. Neve
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Shiva Daram
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Dayton L. Young
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Brian J. McKinnon
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Harold S. Pine
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
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Rossi NA, Reddy DN, Rawl JW, Dong J, Qiu S, Clement CG, Resto VA, Joshi R, McKinnon B, Coblens O. Synchronous tonsillar tumors with differing histopathology: A case report and review of the literature. Cancer Rep (Hoboken) 2022; 5:e1615. [PMID: 35285584 PMCID: PMC9458503 DOI: 10.1002/cnr2.1615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 02/08/2022] [Accepted: 03/02/2022] [Indexed: 11/13/2022] Open
Abstract
Background Tonsillar squamous cell carcinoma (TSCC) due to human papillomavirus (HPV) infection has seen a dramatic increase in recent years. Bilateral tonsillar squamous cell carcinoma (biTSCC) has a much lower incidence than unilateral TSCC and three main hypotheses of biTSCC pathogenesis prevail: field carcinogenesis, single‐clone, and multiple HPV infections. Case A 49‐year‐old Male with a remote history of chewing tobacco presented with symptoms of spitting up tissue and occasional hemoptysis. Physical exam showed a sole left tonsillar mass which was confirmed to be TSCC on biopsy. The patient's computed tomographic (CT) scan was consistent with this finding; however, positron emission tomography (PET) scan indicated a second tumor in the contralateral right tonsil. Surgical resection of both masses and selective neck dissection was performed, and the specimens were sent for further pathological analysis. No complications of surgery were noted and the final diagnosis of synchronous biTSCC was made. The tumors were a T2N0M0 left poorly differentiated TSCC (p16+, EGFR+, bcl2+) with basaloid features, and a T1N0M0 right well to moderately differentiated TSCC (p16+, EGFR+, bcl2−). Conclusion Our present case was notable for differing tumor pathology and karyotype analysis between the right and left masses, directly supporting the multiple HPV infections hypothesis of biTSCC pathogenesis. Further genetic characterization of tonsillar tumors is needed to better characterize TSCC and best guide medical/surgical therapy.
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Affiliation(s)
- Nicholas A Rossi
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Devin N Reddy
- School of Medicine, University of Texas Medical Branch, Galveston, Texas, USA
| | - Jordan W Rawl
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Jianli Dong
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Suimin Qiu
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Cecilia G Clement
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Vicente A Resto
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Rohan Joshi
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Brian McKinnon
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Orly Coblens
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas, USA
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Rossi NA, George SS, Patel KP, Reddy DN, Ohlstein JF, McKinnon BJ, Siddiqui FN, Lees KA. Qualitative analysis of sinus surgery posts on popular social media platforms. Am J Otolaryngol 2022; 43:103388. [PMID: 35144105 DOI: 10.1016/j.amjoto.2022.103388] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 01/30/2022] [Indexed: 01/16/2023]
Abstract
INTRODUCTION Social media platforms are constantly evolving and expanding to new populations, exposing their users to various topics and serving as an informal educational resource. Medical ideas and topics are freely discussed online, making understanding of what is present on these platforms of particular importance to the practicing medical professional. In the field of otolaryngology, the public social media portrayal of sinus surgery has not been previously reported. METHODS Social media posts using keywords related to sinus surgery on Facebook, Instagram, and TikTok were qualitatively analyzed and categorized based on media type, author, subject, timing, depiction, and popularity. RESULTS The total number of posts included in final analysis was 1798, with a majority stemming from Instagram (68.5%), then Facebook (20.2%) and finally TikTok (11.3%). The most common type of media analyzed was images (69.0%) and patients were more often authors of posts (45.1%) as compared to physicians (34.8%). The subjects of the posts were nearly equally reassurance regarding surgery (41.3%) and educational or informational posts (38.8%) and were most commonly timed in the postoperative period (41.3%). Sinus surgery was depicted in a positive fashion most frequently (56.6%), notably compared against the negative portrayal at 3.2%. Negative posts most commonly cited postoperative pain or bleeding. CONCLUSIONS Most social media posts analyzed in this multi-platform study depicted sinus surgery in a positive fashion. Patients tended to post in the postoperative or perioperative period, whereas physicians tender to post intraoperative educational posts. Negative posts were most commonly centered around postoperative pain. Cautious interpretation of these results could be used for improving patient care and outreach in the digital age.
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Affiliation(s)
- Nicholas A Rossi
- Department of Otolaryngology - Head & Neck Surgery, University of Texas Medical Branch, Galveston, TX, United States of America.
| | - Sachin S George
- School of Medicine, University of Texas Medical Branch, Galveston, TX, United States of America
| | - Kirav P Patel
- School of Medicine, University of Texas Medical Branch, Galveston, TX, United States of America
| | - Devin N Reddy
- School of Medicine, University of Texas Medical Branch, Galveston, TX, United States of America
| | - Jason F Ohlstein
- Department of Otolaryngology, St. Luke's University Health Network, Bethlehem, PA, United States of America
| | - Brian J McKinnon
- Department of Otolaryngology - Head & Neck Surgery, University of Texas Medical Branch, Galveston, TX, United States of America
| | - Farrah N Siddiqui
- Department of Otolaryngology - Head & Neck Surgery, University of Texas Medical Branch, Galveston, TX, United States of America
| | - Katherine A Lees
- Department of Otolaryngology - Head & Neck Surgery, University of Texas Medical Branch, Galveston, TX, United States of America
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13
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Rossi NA, Gietzen R, Malaya LT, Haroun KB, Conner GR, Coblens O, Resto VA, Clement CG, Joshi R. Combined large cell neuroendocrine carcinoma and squamous cell carcinoma of the oropharynx: A collision course of tumors. Clin Case Rep 2022; 10:e05319. [PMID: 35127091 PMCID: PMC8795838 DOI: 10.1002/ccr3.5319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 01/14/2022] [Indexed: 11/07/2022] Open
Abstract
Combined large cell neuroendocrine carcinoma (LCNEC) and squamous cell carcinoma (SCC) of the H&N are exceptionally rare. We present the case of combined p16 negative SCC and LCNEC of the oropharynx treated with combination chemotherapy. This is the third reported case of combined neuroendocrine carcinoma and SCC of the oropharynx.
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Affiliation(s)
- Nicholas A. Rossi
- Department of OtolaryngologyUniversity of Texas Medical BranchGalvestonTexasUSA
| | - Rachelle Gietzen
- Department of PathologyUniversity of Texas Medical BranchGalvestonTexasUSA
| | - Lauren T. Malaya
- School of MedicineUniversity of Texas Medical BranchGalvestonTexasUSA
| | - Kareem B. Haroun
- Department of OtolaryngologyUniversity of Texas Medical BranchGalvestonTexasUSA
| | - Grant R. Conner
- Department of OtolaryngologyUniversity of Texas Medical BranchGalvestonTexasUSA
| | - Orly Coblens
- Department of OtolaryngologyUniversity of Texas Medical BranchGalvestonTexasUSA
| | - Vicente A. Resto
- Department of OtolaryngologyUniversity of Texas Medical BranchGalvestonTexasUSA
| | - Cecilia G. Clement
- Department of PathologyUniversity of Texas Medical BranchGalvestonTexasUSA
| | - Rohan Joshi
- Department of OtolaryngologyUniversity of Texas Medical BranchGalvestonTexasUSA
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14
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Benavidez M, Rossi NA, Rawl JW, Chaaban M. Retroperitoneal Hematoma as a Complication of Endovascular Embolization of Tumor Epistaxis: A Case Report. Cureus 2021; 13:e20759. [PMID: 35111445 PMCID: PMC8794427 DOI: 10.7759/cureus.20759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/26/2021] [Indexed: 11/21/2022] Open
Abstract
Retroperitoneal hematomas are a rare and fatal complication of endovascular embolization. We report a case of an 89-year-old woman who was referred to interventional radiology for percutaneous embolization for intractable epistaxis as a result of a left nasal cavity mucosal melanoma. After successful embolization of the left sphenopalatine artery, the patient became hypotensive and was transferred to the intensive care unit. Post-operative CT abdomen and pelvis angiogram showed a large right perinephric hematoma, which is an extremely uncommon complication of endovascular embolization for epistaxis. Practitioners should be aware of this life-threatening complication in weighing the risks and benefits of embolization versus direct surgical ligation, and they should identify and intervene promptly if a retroperitoneal hematoma should occur.
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15
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Rossi NA, Spaude J, Ohlstein JF, Pine HS, Daram S, McKinnon BJ, Szeremeta W. Apnea-hypopnea index severity as an independent predictor of post-tonsillectomy respiratory complications in pediatric patients: A retrospective study. Ear Nose Throat J 2021:1455613211059468. [PMID: 34851765 DOI: 10.1177/01455613211059468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
INTRODUCTION Despite the presence of clinical practice guidelines for overnight admission of pediatric patients following adenotonsillectomy, variance in practice patterns exists between pediatric otolaryngologists. The purpose of this study is to examine severity of apnea-hypopnea index (AHI) as an independent predictor of postoperative respiratory complications in children undergoing adenotonsillectomy. METHODS Retrospective chart review of all children undergoing adenotonsillectomy at a large tertiary referral center between January 2015 and December 2019 who underwent preoperative polysomnography and were admitted for overnight observation. Charts were reviewed for total adverse events and respiratory events occurring during admission. RESULTS Overall, respiratory events were seen in 50.6% of patients with AHI ≥10 and in 39.6% of patients with AHI <10. The overall mean AHI was 19.2, with a mean of 28.1 in the AHI ≥10 subgroup vs 4.6 in the AHI <10 subgroup. There was no statistical correlation or increased risk between an AHI ≥10 and having a pure respiratory event, with a relative risk of 1.19 (.77-1.83, P = .43). There was a statistically significant difference between the mean AHI of those with any adverse event and those without (21.6 vs 13.4, P = .008). There is additionally an increased risk of any event with an AHI over 10, with a relative risk of 1.51 (1.22-1.88, P < .0001). CONCLUSION Preoperative AHI of 10 events per hour was not a predictor of postoperative respiratory complications. However, there was a trend for those with a higher AHI requiring additional supportive measures or a prolonged stay. Practitioners should always use their best judgment in deciding whether a child warrants postoperative admission following adenotonsillectomy.
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Affiliation(s)
- Nicholas A Rossi
- Department of Otolaryngology, 12338University of Texas Medical Branch, Galveston, TX, USA
| | - Jordan Spaude
- School of Medicine, 74950University of Texas Medical Branch, Galveston, TX, USA
| | - Jason F Ohlstein
- Department of Otolaryngology, 12338University of Texas Medical Branch, Galveston, TX, USA
| | - Harold S Pine
- Department of Otolaryngology, 12338University of Texas Medical Branch, Galveston, TX, USA
| | - Shiva Daram
- Department of Otolaryngology, 12338University of Texas Medical Branch, Galveston, TX, USA
| | - Brian J McKinnon
- Department of Otolaryngology, 12338University of Texas Medical Branch, Galveston, TX, USA
| | - Wasyl Szeremeta
- Department of Otolaryngology, 12338University of Texas Medical Branch, Galveston, TX, USA
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16
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Rossi NA, Gietzen R, Clement CG, Ohlstein JF, Pine HS, Szeremeta W, McKinnon BJ, Daram S. Bilateral Cervical Pilomatricoma: A Diagnostic Dilemma for the Pediatric Otolaryngologist. Ear Nose Throat J 2020; 101:368-371. [PMID: 32986491 DOI: 10.1177/0145561320958978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Pilomatricomas are benign skin tumors often encountered by otolaryngologists but frequently misdiagnosed. Although they can occur at any age, they commonly present in children as a discolored superficial lesion adhered to the overlying skin. Accurate preoperative diagnosis is crucial for appropriate management, which is surgical in most cases. Here, we present bilateral pilomatricomas mimicking features of several other diagnoses in a pediatric patient. The patient was successfully treated with surgical excision. This case presented a unique diagnostic challenge, as the lesions exhibited features of several common diagnoses. In general, surgical management of pilomatricoma is curative, and recurrence is rare.
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Affiliation(s)
- Nicholas A Rossi
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, TX, USA
| | - Rachelle Gietzen
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, USA
| | - Cecilia G Clement
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, USA
| | - Jason F Ohlstein
- * Dr. Ohlstein contributed to drafting and editing of the manuscript
| | - Harold S Pine
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, TX, USA
| | - Wasyl Szeremeta
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, TX, USA
| | - Brian J McKinnon
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, TX, USA
| | - Shiva Daram
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, TX, USA
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17
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Rossi NA, El Meouche I, Dunlop MJ. Erratum: Author Correction: Forecasting cell fate during antibiotic exposure using stochastic gene expression. Commun Biol 2019; 2:330. [PMID: 31482144 PMCID: PMC6717196 DOI: 10.1038/s42003-019-0584-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Affiliation(s)
- Nicholas A Rossi
- 1Molecular Biology, Cell Biology & Biochemistry Program, Boston University, Boston, MA 02215 USA.,2Biological Design Center, Boston University, Boston, MA 02215 USA
| | - Imane El Meouche
- 2Biological Design Center, Boston University, Boston, MA 02215 USA.,3Department of Biomedical Engineering, Boston University, Boston, MA 02215 USA
| | - Mary J Dunlop
- 1Molecular Biology, Cell Biology & Biochemistry Program, Boston University, Boston, MA 02215 USA.,2Biological Design Center, Boston University, Boston, MA 02215 USA.,3Department of Biomedical Engineering, Boston University, Boston, MA 02215 USA
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18
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Abstract
Antibiotic killing does not occur at a single, precise time for all cells within a population. Variability in time to death can be caused by stochastic expression of genes, resulting in differences in endogenous stress-resistance levels between individual cells in a population. Here we investigate whether single-cell differences in gene expression prior to antibiotic exposure are related to cell survival times after antibiotic exposure for a range of genes of diverse function. We quantified the time to death of single cells under antibiotic exposure in combination with expression of reporters. For some reporters, including genes involved in stress response and cellular processes like metabolism, the time to cell death had a strong relationship with the initial expression level of the genes. Our results highlight the single-cell level non-uniformity of antibiotic killing and also provide examples of key genes where cell-to-cell variation in expression is strongly linked to extended durations of antibiotic survival.
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Affiliation(s)
- Nicholas A. Rossi
- Molecular Biology, Cell Biology & Biochemistry Program, Boston University, Boston, MA 02215 USA
- Biological Design Center, Boston University, Boston, MA 02215 USA
| | - Imane El Meouche
- Biological Design Center, Boston University, Boston, MA 02215 USA
- Department of Biomedical Engineering, Boston University, Boston, MA 02215 USA
| | - Mary J. Dunlop
- Molecular Biology, Cell Biology & Biochemistry Program, Boston University, Boston, MA 02215 USA
- Biological Design Center, Boston University, Boston, MA 02215 USA
- Department of Biomedical Engineering, Boston University, Boston, MA 02215 USA
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19
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Rawl JW, Rossi NA, Chaaban MR, Brindley P. Intraseptal Mucocele as a Long-term Complication of Revision Septorhinoplasty: A Case Report and Review of a Rare Entity. Allergy Rhinol (Providence) 2019; 10:2152656719845325. [PMID: 31192029 PMCID: PMC6542106 DOI: 10.1177/2152656719845325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Paranasal sinus mucoceles are benign, expansive, cystic lesions which arise from retention of mucus secretions. They arise primarily in the setting of cystic degeneration of the sinus mucosa or secondarily in the setting of obstruction of the sinus ostium due to mucosal trauma or chronic inflammation. Septal mucoceles are rare. Only 10 cases to our knowledge have previously been reported. Patients are exclusively male, in their middle years, usually with a history of nasal trauma or nasal surgery. Nasal obstruction followed by headache present for 3 months to a year are the most common presenting symptoms. Here, we present a case of septal mucocele with dystrophic bone formation in a 57-year-old man arising 35 years after open septorhinoplasty treated successfully with total excision via an endoscopic, endoseptal approach. A review of the available literature was conducted to provide a consolidated update on diagnosis and management.
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Affiliation(s)
- Jordan W Rawl
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas
| | - Nicholas A Rossi
- School of Medicine, University of Texas Medical Branch, Galveston, Texas
| | - Mohamad R Chaaban
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas
| | - Paul Brindley
- Department of Otolaryngology, University of Texas Medical Branch, Galveston, Texas
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20
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Unsal AA, Booth JR, Rossi NA, Byrd JK, Kountakis SE. Basaloid nasopharyngeal carcinoma: A population-based analysis of a rare tumor. Laryngoscope 2019; 129:2727-2732. [PMID: 30632158 DOI: 10.1002/lary.27788] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/11/2018] [Indexed: 11/07/2022]
Abstract
OBJECTIVES Basaloid nasopharyngeal carcinoma (BNPC) is an extremely rare malignancy with a paucity of cases reported in the literature. This analysis represents the largest cohort of BNPC to date. STUDY DESIGN Retrospective population-based analysis. METHODS The Surveillance, Epidemiology, and End Results registry from 2001 to 2015 was utilized to extract a total of 82 cases of BNPC. Data were analyzed for incidence trends, demographic, and tumor characteristics, as well as potential outcome prognosticators. RESULTS White male patients between the ages of 40 to 79 years were most commonly affected. The incidence was measured at 0.06 per 100 thousand people. The majority of tumors were considered high grade (grade III/IV; 92.2%). At presentation, patients were most commonly advanced stage (American Joint Committee on Cancer [AJCC] stage IV) at 29.3%, followed by AJCC stages II and III (20.7%, respectively). T2 tumors were most common at 28.8%. Cervical node involvement and distant metastasis were measured at 53.7% and 10.4%, respectively. One-year, 5-year, and 10-year disease-specific survival was 87.7%, 60.7%, and 29.8%, respectively. No prognostic factors were identified in this study. CONCLUSION Basaloid squamous cell carcinoma represents a histologic subtype of nasopharyngeal carcinoma with excellent short-term outcomes but poor survival at 10 years when compared to conventional squamous cell carcinomas. LEVEL OF EVIDENCE NA Laryngoscope, 129:2727-2732, 2019.
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Affiliation(s)
- Aykut A Unsal
- Department of Otolaryngology-Head and Neck Surgery, Medical College of Georgia-Augusta University, Augusta, Georgia
- Center for Skull Base Surgery, Medical College of Georgia-Augusta University, Augusta, Georgia
| | - J Renee Booth
- Department of Otolaryngology-Head and Neck Surgery, Medical College of Georgia-Augusta University, Augusta, Georgia
- Center for Skull Base Surgery, Medical College of Georgia-Augusta University, Augusta, Georgia
| | - Nicholas A Rossi
- University of Texas Medical Branch, School of Medicine, Galveston, Texas, U.S.A
| | - J Kenneth Byrd
- Department of Otolaryngology-Head and Neck Surgery, Medical College of Georgia-Augusta University, Augusta, Georgia
- Center for Skull Base Surgery, Medical College of Georgia-Augusta University, Augusta, Georgia
| | - Stilianos E Kountakis
- Department of Otolaryngology-Head and Neck Surgery, Medical College of Georgia-Augusta University, Augusta, Georgia
- Center for Skull Base Surgery, Medical College of Georgia-Augusta University, Augusta, Georgia
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21
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Rossi NA, Mora T, Walczak AM, Dunlop MJ. Active degradation of MarA controls coordination of its downstream targets. PLoS Comput Biol 2018; 14:e1006634. [PMID: 30589845 PMCID: PMC6307708 DOI: 10.1371/journal.pcbi.1006634] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 11/08/2018] [Indexed: 01/01/2023] Open
Abstract
Several key transcription factors have unusually short half-lives compared to other cellular proteins. Here, we explore the utility of active degradation in shaping how the multiple antibiotic resistance activator MarA coordinates its downstream targets. MarA controls a variety of stress response genes in Escherichia coli. We modify its half-life either by knocking down the protease that targets it via CRISPRi or by engineering MarA to protect it from degradation. Our experimental and analytical results indicate that active degradation can impact both the rate of coordination and the maximum coordination that downstream genes can achieve. In the context of multi-gene regulation, trade-offs between these properties show that perfect information fidelity and instantaneous coordination cannot coexist.
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Affiliation(s)
- Nicholas A. Rossi
- Molecular Biology, Cell Biology & Biochemistry Program, Boston University, Boston, Massachusetts, United States of America
- Biological Design Center, Boston University, Boston, Massachusetts, United States of America
| | - Thierry Mora
- Laboratoire de Physique Statistique, CNRS, Sorbonne Université, Université Paris-Diderot, and École Normale Supérieure (PSL), Paris, France
| | - Aleksandra M. Walczak
- Laboratoire de Physique Théorique, CNRS, Sorbonne Université, and École Normale Supérieure (PSL), Paris, France
| | - Mary J. Dunlop
- Molecular Biology, Cell Biology & Biochemistry Program, Boston University, Boston, Massachusetts, United States of America
- Biological Design Center, Boston University, Boston, Massachusetts, United States of America
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts, United States of America
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22
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Abstract
New synthetic oscillator designs provide independent tuning of amplitude and frequency and flexible switching between dynamic regimes.
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Affiliation(s)
- Nicholas A Rossi
- Molecular Biology, Cell Biology & Biochemistry Program, Boston University, Boston, MA 02215, USA
| | - Mary J Dunlop
- Molecular Biology, Cell Biology & Biochemistry Program, Boston University, Boston, MA 02215, USA; Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA.
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23
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Rossi NA, Dunlop MJ. Customized Regulation of Diverse Stress Response Genes by the Multiple Antibiotic Resistance Activator MarA. PLoS Comput Biol 2017; 13:e1005310. [PMID: 28060821 PMCID: PMC5257004 DOI: 10.1371/journal.pcbi.1005310] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 01/23/2017] [Accepted: 12/15/2016] [Indexed: 11/18/2022] Open
Abstract
Stress response networks frequently have a single upstream regulator that controls many downstream genes. However, the downstream targets are often diverse, therefore it remains unclear how their expression is specialized when under the command of a common regulator. To address this, we focused on a stress response network where the multiple antibiotic resistance activator MarA from Escherichia coli regulates diverse targets ranging from small RNAs to efflux pumps. Using single-cell experiments and computational modeling, we showed that each downstream gene studied has distinct activation, noise, and information transmission properties. Critically, our results demonstrate that understanding biological context is essential; we found examples where strong activation only occurs outside physiologically relevant ranges of MarA and others where noise is high at wild type MarA levels and decreases as MarA reaches its physiological limit. These results demonstrate how a single regulatory protein can maintain specificity while orchestrating the response of many downstream genes. Bacteria can sense and respond to stress in their environment. This process is often coordinated by a master regulator that turns on or off many downstream genes, allowing the cell to survive the stress. However, individual genes encode products that are diverse and optimal expression for each gene may differ. Here, we focus on how expression of diverse downstream genes is optimized by targets of the multiple antibiotic resistance activator MarA. Using single-cell experiments and computational modeling we show that downstream genes process MarA signals differently, with unique activation, noise, and information transmission properties. We find that each downstream gene’s response depends critically on the level of the input MarA. Furthermore, by swapping parts of the regulatory elements of genes we were able to create novel responses. This suggests that these properties can be readily tuned by evolution. Our findings show how a network with diverse downstream genes can be used to process the same command to achieve many distinct outputs, which work together to coordinate the response to stress.
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Affiliation(s)
- Nicholas A. Rossi
- Molecular Biology, Cell Biology & Biochemistry Program, Boston University, Boston, MA United States of America
| | - Mary J. Dunlop
- Department of Biomedical Engineering, Boston University, Boston, MA United States of America
- * E-mail:
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24
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Abstract
A family of 7 Tröger's base (TB) compounds that vary in configuration (quasiracemates, racemates, and enantiomers) and chemical substitutions (Me, Cl, and Br) has been investigated.
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Affiliation(s)
- Jacob T. Cross
- Department of Chemistry
- Eastern Illinois University
- Charleston, USA
| | | | - Mateusz Serafin
- Department of Chemistry
- Eastern Illinois University
- Charleston, USA
| | - Kraig A. Wheeler
- Department of Chemistry
- Eastern Illinois University
- Charleston, USA
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