Open Access. Powered by Scholars. Published by Universities.®

Otorhinolaryngologic Diseases Commons™

Open Access. Powered by Scholars. Published by Universities.®

Otolaryngology

Institution
Keyword
Publication Year
Publication
Publication Type

Articles 91 - 120 of 144

Full-Text Articles in Otorhinolaryngologic Diseases

Indocyanine Green Angiography As The Principal Design And Perfusion Assessment Tool For The Supraclavicular Artery Island Flap In Head And Neck Reconstruction, Jo-Lawrence M Bigcas, Carolyn A Debiase, Tang Ho Sep 2022

Indocyanine Green Angiography As The Principal Design And Perfusion Assessment Tool For The Supraclavicular Artery Island Flap In Head And Neck Reconstruction, Jo-Lawrence M Bigcas, Carolyn A Debiase, Tang Ho

Faculty, Staff and Student Publications

A consecutive case series of supraclavicular artery island flaps was designed using indocyanine green angiography (IcG-A) in head and neck reconstruction to demonstrate its utilization in supraclavicular artery island flap (SCAIF) head and neck reconstruction. IcG-A was used consecutively between April 2014 and July 2015 to evaluate its use in flap design, inset, and intraoperative decision-making in five patients undergoing head and neck reconstruction. Six SCAIFs were harvested in five patients where IcG-A was used as the primary tool for flap design by visually mapping the supraclavicular artery under fluorescence. Each flap was harvested around the mapped course of the …


Nut Carcinoma Of The Submandibular Gland: A Case At This Uncommon Site With Review Of The Literature, Vanessa Moreno, Christopher A French, Tianhua Guo, Hui Zhu, Songling Zhang, Darryl Duncan, Ron J Karni, Angel I Blanco, Syed H Jafri, Karan Saluja Sep 2022

Nut Carcinoma Of The Submandibular Gland: A Case At This Uncommon Site With Review Of The Literature, Vanessa Moreno, Christopher A French, Tianhua Guo, Hui Zhu, Songling Zhang, Darryl Duncan, Ron J Karni, Angel I Blanco, Syed H Jafri, Karan Saluja

Faculty, Staff and Student Publications

Nuclear protein in testis (NUT) carcinoma is a rare, highly aggressive, undifferentiated carcinoma that harbors a characteristic rearrangement of the NUTM1 gene. The majority arise in adolescents and young adults especially from the midline structures of the thorax, head, and neck. Until the present, there have only been three reported cases of NUT carcinoma of the submandibular gland, two of which were reported in children and another one in an adult from Korea. Here, we report the first case of NUT carcinoma arising in the submandibular gland of an adult female in the United States, representing the fourth case worldwide. …


Muscle And Adipose Tissue Segmentations At The Third Cervical Vertebral Level In Patients With Head And Neck Cancer, Kareem A Wahid, Brennan Olson, Rishab Jain, Aaron J Grossberg, Dina El-Habashy, Cem Dede, Vivian Salama, Moamen Abobakr, Abdallah S R Mohamed, Renjie He, Joel Jaskari, Jaakko Sahlsten, Kimmo Kaski, Clifton D Fuller, Mohamed A Naser Aug 2022

Muscle And Adipose Tissue Segmentations At The Third Cervical Vertebral Level In Patients With Head And Neck Cancer, Kareem A Wahid, Brennan Olson, Rishab Jain, Aaron J Grossberg, Dina El-Habashy, Cem Dede, Vivian Salama, Moamen Abobakr, Abdallah S R Mohamed, Renjie He, Joel Jaskari, Jaakko Sahlsten, Kimmo Kaski, Clifton D Fuller, Mohamed A Naser

Faculty, Staff and Student Publications

The accurate determination of sarcopenia is critical for disease management in patients with head and neck cancer (HNC). Quantitative determination of sarcopenia is currently dependent on manually-generated segmentations of skeletal muscle derived from computed tomography (CT) cross-sectional imaging. This has prompted the increasing utilization of machine learning models for automated sarcopenia determination. However, extant datasets currently do not provide the necessary manually-generated skeletal muscle segmentations at the C3 vertebral level needed for building these models. In this data descriptor, a set of 394 HNC patients were selected from The Cancer Imaging Archive, and their skeletal muscle and adipose tissue was …


Advances In Head And Neck Cancer Pain, Y Ye, D D Jensen, C T Viet, H L Pan, W M Campana, M Amit, M D Boada Aug 2022

Advances In Head And Neck Cancer Pain, Y Ye, D D Jensen, C T Viet, H L Pan, W M Campana, M Amit, M D Boada

Faculty, Staff and Student Publications

Head and neck cancer (HNC) affects over 890,000 people annually worldwide and has a mortality rate of 50%. Aside from poor survival, HNC pain impairs eating, drinking, and talking in patients, severely reducing quality of life. Different pain phenotype in patients (allodynia, hyperalgesia, and spontaneous pain) results from a combination of anatomical, histopathological, and molecular differences between cancers. Poor pathologic features (e.g., perineural invasion, lymph node metastasis) are associated with increased pain. The use of syngeneic/immunocompetent animal models, as well as a new mouse model of perineural invasion, provides novel insights into the pathobiology of HNC pain. Glial and immune …


Complications Of Pediatric Cochlear Implant Surgery, Andrew Stefan, Sabrina Bernardo, William Azkoul Ii, Bianca Siegel Jun 2022

Complications Of Pediatric Cochlear Implant Surgery, Andrew Stefan, Sabrina Bernardo, William Azkoul Ii, Bianca Siegel

Medical Student Research Symposium

Background:

Cochlear implantation (CI) surgery is the standard of care treatment for pediatric patients diagnosed with severe to profound sensorineural hearing loss. While considered a relatively safe operation, any invasive procedure involving the cranium has risks. However, there are few recent studies in the United States that have analyzed complication rates among children who have received CI. Furthermore, existing studies fail to discuss specific risk factors that led to post-operative complications, nor offer solutions to reduce their incidence. This study aims to 1) determine the incidence of specific complications in pediatric CI patients and 2) identify evidence-based risk factors for …


Knowledge-Based Planning For The Radiation Therapy Treatment Plan Quality Assurance For Patients With Head And Neck Cancer, Wenhua Cao, Mary Gronberg, Adenike Olanrewaju, Thomas Whitaker, Karen Hoffman, Carlos Cardenas, Adam Garden, Heath Skinner, Beth Beadle, Laurence Court Jun 2022

Knowledge-Based Planning For The Radiation Therapy Treatment Plan Quality Assurance For Patients With Head And Neck Cancer, Wenhua Cao, Mary Gronberg, Adenike Olanrewaju, Thomas Whitaker, Karen Hoffman, Carlos Cardenas, Adam Garden, Heath Skinner, Beth Beadle, Laurence Court

Faculty, Staff and Student Publications

This study aimed to investigate the feasibility of using a knowledge-based planning technique to detect poor quality VMAT plans for patients with head and neck cancer. We created two dose-volume histogram (DVH) prediction models using a commercial knowledge-based planning system (RapidPlan, Varian Medical Systems, Palo Alto, CA) from plans generated by manual planning (MP) and automated planning (AP) approaches. DVHs were predicted for evaluation cohort 1 (EC1) of 25 patients and compared with achieved DVHs of MP and AP plans to evaluate prediction accuracy. Additionally, we predicted DVHs for evaluation cohort 2 (EC2) of 25 patients for which we intentionally …


Manual Therapy For Patients With Radiation-Associated Trismus After Head And Neck Cancer, Holly Mcmillan, Carly E A Barbon, Richard Cardoso, Abigail Sedory, Sheila Buoy, Christine Porsche, Kiara Savage, Lauren Mayo, Katherine A Hutcheson May 2022

Manual Therapy For Patients With Radiation-Associated Trismus After Head And Neck Cancer, Holly Mcmillan, Carly E A Barbon, Richard Cardoso, Abigail Sedory, Sheila Buoy, Christine Porsche, Kiara Savage, Lauren Mayo, Katherine A Hutcheson

Faculty, Staff and Student Publications

IMPORTANCE: Trismus is highly prevalent in head and neck cancer (HNC) survivorship. Current standards for trismus treatment include various stretch-based exercise protocols as a primary and single treatment modality with limited evidence regarding the role of manual therapy (MT) for this indication.

OBJECTIVE: To assess the effect size and associations of response to MT to increase oral opening in the setting of radiation-associated trismus.

DESIGN, SETTING, AND PARTICIPANTS: This retrospective case series was conducted at the University of Texas MD Anderson Cancer Center between 2016 and March 2020 (before COVID-19 interruption) and included 49 disease-free survivors of HNC who were …


Survey Of Pediatric Critical Care Fellows On Postresuscitation Debriefing, Nicholas A Rossi, Mia Benavidez, Harold S Pine, Shiva Daram, Wasyl Szeremeta Apr 2022

Survey Of Pediatric Critical Care Fellows On Postresuscitation Debriefing, Nicholas A Rossi, Mia Benavidez, Harold S Pine, Shiva Daram, Wasyl Szeremeta

Faculty, Staff and Student Publications

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 …


Stat6 Blockade Abrogates Aspergillus-Induced Eosinophilic Chronic Rhinosinusitis And Asthma, A Model Of Unified Airway Disease, Hua Sun, Ashish Damania, Megan L Mair, Eniola Otukoya, Yi-Dong Li, Katherine Polsky, Yuying Zeng, Jeremiah A Alt, Martin J Citardi, David B Corry, Amber U Luong, John Morgan Knight Feb 2022

Stat6 Blockade Abrogates Aspergillus-Induced Eosinophilic Chronic Rhinosinusitis And Asthma, A Model Of Unified Airway Disease, Hua Sun, Ashish Damania, Megan L Mair, Eniola Otukoya, Yi-Dong Li, Katherine Polsky, Yuying Zeng, Jeremiah A Alt, Martin J Citardi, David B Corry, Amber U Luong, John Morgan Knight

Faculty, Staff and Student Publications

Unified airway disease, including concurrent asthma and chronic rhinosinusitis (CRS), is a common, but poorly understood disorder with no curative treatment options. To establish a murine model of chronic unified eosinophilic airway inflammation, mice were challenged with Aspergillus niger, and sinonasal mucosa and lung tissue were evaluated by immunohistochemistry, flow cytometry, and gene expression. Inhalation of A niger conidia resulted in a Th2-biased lung and sinus inflammation that typifies allergic asthma and CRS. Gene network and pathway analysis correlated with human disease with upregulation of not only the JAK-STAT and helper T-cell pathways, but also less expected pathways governing …


Evaluation Of Programmed Death Ligand 1 Expression In Cytology To Determine Eligibility For Immune Checkpoint Inhibitor Therapy In Patients With Head And Neck Squamous Cell Carcinoma, Zhonghua Liu, Michelle Williams, John Stewart, Bonnie S Glisson, Clifton Fuller, Sinchita Roy-Chowdhuri Feb 2022

Evaluation Of Programmed Death Ligand 1 Expression In Cytology To Determine Eligibility For Immune Checkpoint Inhibitor Therapy In Patients With Head And Neck Squamous Cell Carcinoma, Zhonghua Liu, Michelle Williams, John Stewart, Bonnie S Glisson, Clifton Fuller, Sinchita Roy-Chowdhuri

Faculty, Staff and Student Publications

Background: Immune checkpoint inhibitors targeting the programmed cell death protein 1 (PD-1)/programmed cell death ligand 1 (PD-L1) pathway have recently emerged as a frontline treatment for head and neck squamous cell carcinoma (HNSCC). The evaluation of PD-L1 expression by immunohistochemistry in histologic samples is used to determine the eligibility of patients with HNSCC for immunotherapy. Patients with newly diagnosed HNSCC are frequently diagnosed by fine-needle aspiration (FNA) of lymph nodes with metastatic disease. However, the evaluation of PD-L1 expression with the proposed combined positive score (CPS) has not been well established in cytology specimens.

Methods: This study retrospectively identified 21 …


Stat6 Suppression Prevents Bleomycin-Induced Dermal Fibrosis, Hua Sun, Ashish Damania, Megan L Mair, Eniola Otukoya, Yi-Dong Li, Katherine Polsky, Yuying Zeng, Jeremiah A Alt, Martin J Citardi, David B Corry, Amber U Luong, John Morgan Knight Jan 2022

Stat6 Suppression Prevents Bleomycin-Induced Dermal Fibrosis, Hua Sun, Ashish Damania, Megan L Mair, Eniola Otukoya, Yi-Dong Li, Katherine Polsky, Yuying Zeng, Jeremiah A Alt, Martin J Citardi, David B Corry, Amber U Luong, John Morgan Knight

Faculty, Staff and Student Publications

Unified airway disease, including concurrent asthma and chronic rhinosinusitis (CRS), is a common, but poorly understood disorder with no curative treatment options. To establish a murine model of chronic unified eosinophilic airway inflammation, mice were challenged with Aspergillus niger, and sinonasal mucosa and lung tissue were evaluated by immunohistochemistry, flow cytometry, and gene expression. Inhalation of A niger conidia resulted in a Th2-biased lung and sinus inflammation that typifies allergic asthma and CRS. Gene network and pathway analysis correlated with human disease with upregulation of not only the JAK-STAT and helper T-cell pathways, but also less expected pathways governing …


Deep-Learning-Based Generation Of Synthetic 6-Minute Mri From 2-Minute Mri For Use In Head And Neck Cancer Radiotherapy, Kareem A Wahid, Jiaofeng Xu, Dina El-Habashy, Yomna Khamis, Moamen Abobakr, Brigid Mcdonald, Nicolette O' Connell, Daniel Thill, Sara Ahmed, Christina Setareh Sharafi, Kathryn Preston, Travis C Salzillo, Abdallah S R Mohamed, Renjie He, Nathan Cho, John Christodouleas, Clifton D Fuller, Mohamed A Naser Jan 2022

Deep-Learning-Based Generation Of Synthetic 6-Minute Mri From 2-Minute Mri For Use In Head And Neck Cancer Radiotherapy, Kareem A Wahid, Jiaofeng Xu, Dina El-Habashy, Yomna Khamis, Moamen Abobakr, Brigid Mcdonald, Nicolette O' Connell, Daniel Thill, Sara Ahmed, Christina Setareh Sharafi, Kathryn Preston, Travis C Salzillo, Abdallah S R Mohamed, Renjie He, Nathan Cho, John Christodouleas, Clifton D Fuller, Mohamed A Naser

Faculty, Staff and Student Publications

Background: Quick magnetic resonance imaging (MRI) scans with low contrast-to-noise ratio are typically acquired for daily MRI-guided radiotherapy setup. However, for patients with head and neck (HN) cancer, these images are often insufficient for discriminating target volumes and organs at risk (OARs). In this study, we investigated a deep learning (DL) approach to generate high-quality synthetic images from low-quality images.

Methods: We used 108 unique HN image sets of paired 2-minute T2-weighted scans (2mMRI) and 6-minute T2-weighted scans (6mMRI). 90 image sets (~20,000 slices) were used to train a 2-dimensional generative adversarial DL model that utilized 2mMRI as input and …


Impact Of Covid-19 On Nationwide Pediatric Otolaryngology Practice: Adenotonsillectomies (Ta) And Tonsil-Related Diagnoses Trends, David Z Allen, Sai Challapalli, Kyung Hyun Lee, Cynthia S Bell, Soham Roy, Sarah Bowe, Karthik Balakrishnan, C W David Chang, Zhen Huang Jan 2022

Impact Of Covid-19 On Nationwide Pediatric Otolaryngology Practice: Adenotonsillectomies (Ta) And Tonsil-Related Diagnoses Trends, David Z Allen, Sai Challapalli, Kyung Hyun Lee, Cynthia S Bell, Soham Roy, Sarah Bowe, Karthik Balakrishnan, C W David Chang, Zhen Huang

Faculty, Staff and Student Publications

Objectives/hypothesis: To determine the effects of the COVID-19 pandemic on Adenotonsillectomies (TA), Tonsil Related Cases (TC), and Peritonsillar Abscess (PTA) Trends.

Study design: Retrospective Cohort Study.

Methods: This is a retrospective cohort study using the Pediatric Health Information System® (PHIS) database, which consists of 51 children's hospitals. Regions were defined according to PHIS rules with at least five children's hospitals per region. We compared monthly total TA, TC, TC as a proportion of all hospital visits, and PTA from all encounters at each hospital from January 1, 2019, through December 31, 2021.

Results: Compared to 2019, April 2020 saw mean …


Trending Tubes: A Social Media Analysis Of Tympanostomy Tubes In Children, Nicholas A Rossi, Katherine R French, Chad L Evans, Jason F Ohlstein, Luis D Neve, Shiva Daram, Dayton L Young, Brian J Mckinnon, Harold S Pine Jan 2022

Trending Tubes: A Social Media Analysis Of Tympanostomy Tubes In Children, Nicholas A Rossi, Katherine R French, Chad L Evans, Jason F Ohlstein, Luis D Neve, Shiva Daram, Dayton L Young, Brian J Mckinnon, Harold S Pine

Faculty, Staff and Student Publications

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 …


Candida Albicans Elicits Protective Allergic Responses Via Platelet Mediated T Helper 2 And T Helper 17 Cell Polarization, Yifan Wu, Zhimin Zeng, Yubiao Guo, Lizhen Song, Jill E Weatherhead, Xinyan Huang, Yuying Zeng, Lynn Bimler, Cheng-Yen Chang, John M Knight, Christian Valladolid, Hua Sun, Miguel A Cruz, Bernhard Hube, Julian R Naglik, Amber U Luong, Farrah Kheradmand, David B Corry Nov 2021

Candida Albicans Elicits Protective Allergic Responses Via Platelet Mediated T Helper 2 And T Helper 17 Cell Polarization, Yifan Wu, Zhimin Zeng, Yubiao Guo, Lizhen Song, Jill E Weatherhead, Xinyan Huang, Yuying Zeng, Lynn Bimler, Cheng-Yen Chang, John M Knight, Christian Valladolid, Hua Sun, Miguel A Cruz, Bernhard Hube, Julian R Naglik, Amber U Luong, Farrah Kheradmand, David B Corry

Faculty, Staff and Student Publications

Fungal airway infection (airway mycosis) is an important cause of allergic airway diseases such as asthma, but the mechanisms by which fungi trigger asthmatic reactions are poorly understood. Here, we leverage wild-type and mutant Candida albicans to determine how this common fungus elicits characteristic Th2 and Th17 cell-dependent allergic airway disease in mice. We demonstrate that rather than proteinases that are essential virulence factors for molds, C. albicans instead promoted allergic airway disease through the peptide toxin candidalysin. Candidalysin activated platelets through the Von Willebrand factor (VWF) receptor GP1bα to release the Wnt antagonist Dickkopf-1 (Dkk-1) to drive Th2 and …


Identification Of An Atp/P2x7/Mast Cell Pathway Mediating Ozone-Induced Bronchial Hyperresponsiveness, Xiaomei Kong, William C Bennett, Corey M Jania, Kelly D Chason, Zachary German, Jennifer Adouli, Samuel D Budney, Brandon T Oby, Catharina Van Heusden, Eduardo R Lazarowski, Ilona Jaspers, Scott H Randell, Barry A Hedgespeth, Glenn Cruse, Xiaoyang Hua, Stephen A Schworer, Gregory J Smith, Samir Np Kelada, Stephen L Tilley Nov 2021

Identification Of An Atp/P2x7/Mast Cell Pathway Mediating Ozone-Induced Bronchial Hyperresponsiveness, Xiaomei Kong, William C Bennett, Corey M Jania, Kelly D Chason, Zachary German, Jennifer Adouli, Samuel D Budney, Brandon T Oby, Catharina Van Heusden, Eduardo R Lazarowski, Ilona Jaspers, Scott H Randell, Barry A Hedgespeth, Glenn Cruse, Xiaoyang Hua, Stephen A Schworer, Gregory J Smith, Samir Np Kelada, Stephen L Tilley

Faculty, Staff and Student Publications

Ozone is a highly reactive environmental pollutant with well-recognized adverse effects on lung health. Bronchial hyperresponsiveness (BHR) is one consequence of ozone exposure, particularly for individuals with underlying lung disease. Our data demonstrated that ozone induced substantial ATP release from human airway epithelia in vitro and into the airways of mice in vivo and that ATP served as a potent inducer of mast cell degranulation and BHR, acting through P2X7 receptors on mast cells. Both mast cell-deficient and P2X7 receptor-deficient (P2X7-/-) mice demonstrated markedly attenuated BHR to ozone. Reconstitution of mast cell-deficient mice with WT mast cells and P2X7-/- mast …


Revisiting The Controversy: The Role Of Fungi In Chronic Rhinosinusitis, Matthew A Tyler, Kent Lam, Michael J Marino, William C Yao, Isaac Schmale, Martin J Citardi, Amber U Luong Nov 2021

Revisiting The Controversy: The Role Of Fungi In Chronic Rhinosinusitis, Matthew A Tyler, Kent Lam, Michael J Marino, William C Yao, Isaac Schmale, Martin J Citardi, Amber U Luong

Faculty, Staff and Student Publications

In the last two decades, the development of culture-independent genomic techniques has facilitated an increased appreciation of the microbiota-immunity interactions and their role in a multitude of chronic inflammatory diseases such as chronic rhinosinusitis (CRS), asthma, inflammatory bowel disease and dermatitis. While the pathologic role of bacteria in chronic inflammatory diseases is generally accepted, the understanding of the role of fungi remains controversial.

Chronic rhinosinusitis, specifically the phenotype linked to nasal polyps, represents a spectrum of chronic inflammatory diseases typically characterized by a Type 2 immune response. Studies on the microbiota within sinus cavities from healthy and diseased patients have …


Computer-Assisted Analysis Of Oral Antifungal Therapy In Chronic Rhinosinusitis With Airway Mycosis: A Retrospective Cohort Analysis, Evan Li, Michael Scheurer, Farrah Kheradmand, Amber U Luong, David B Corry Oct 2021

Computer-Assisted Analysis Of Oral Antifungal Therapy In Chronic Rhinosinusitis With Airway Mycosis: A Retrospective Cohort Analysis, Evan Li, Michael Scheurer, Farrah Kheradmand, Amber U Luong, David B Corry

Faculty, Staff and Student Publications

Environmental fungi are etiologically related to chronic rhinosinusitis (CRS) with airway mycosis, but their infectious role remains uncertain, in part because of potentially inadequate methods of disease quantitation. Our objective was to determine objective radiographic and symptomatic outcomes of oral antifungal therapy in adult patients with CRS and airway mycosis by using computer-assisted analysis. We conducted a retrospective study of 65 patients with CRS and culture-proven airway mycosis in a single-center referral-based academic practice, comparing paired sinus computed tomography (CT) scans and symptom scores prior to and during chronic oral antifungal therapy using computer-assisted analysis of sino-mucosal area (CAASMA). A …


Resilience And Its Associated Factors In Head And Neck Cancer Patients In Pakistan: An Analytical Cross-Sectional Study, Nida Zahid, Wajeeha Zahid, Wardah Khalid, Syed Iqbal Azam, Mubasher Ikram, Aneesa Hassan, Haissan Iftikhar, Shireen Shehzad Bhamani, Adnan Jabbar, Shabbir Akhtar, Moghira Siddiqui, Mohammad Sohail Awan, Nargis Asad, Khabir Ahmad Aug 2021

Resilience And Its Associated Factors In Head And Neck Cancer Patients In Pakistan: An Analytical Cross-Sectional Study, Nida Zahid, Wajeeha Zahid, Wardah Khalid, Syed Iqbal Azam, Mubasher Ikram, Aneesa Hassan, Haissan Iftikhar, Shireen Shehzad Bhamani, Adnan Jabbar, Shabbir Akhtar, Moghira Siddiqui, Mohammad Sohail Awan, Nargis Asad, Khabir Ahmad

Department of Surgery Docs

Introduction: The study aimed to assess resilience and its associated factors in head and neck cancer patients, post-treatment in a low middle income country (LMIC) such as Pakistan.
Methods: An analytical cross-sectional study was conducted from November 2019 to May 2020 among head and neck cancer patients aged at least 18 years at the largest private tertiary care hospital, in Karachi, Pakistan. Information regarding their resilience scores was collected through Wagnild and Young's Resilience scale that comprises of 14 items (RS-14). Moreover, depression and anxiety were also assessed via Hospital Anxiety and Depression Scale (HADS) and social support was assessed …


Synchronous Primary Diffuse Large B-Cell Lymphoma And Papillary Thyroid Carcinoma: A Case Report Highlighting "Lymphoma First Approach", Rahim Dhanani, Ambreen Abdullah Unar, Muhammad Hassan Danish, Hamdan Ahmed Pasha, Ummiya Tahir, Mubasher Ikram Aug 2021

Synchronous Primary Diffuse Large B-Cell Lymphoma And Papillary Thyroid Carcinoma: A Case Report Highlighting "Lymphoma First Approach", Rahim Dhanani, Ambreen Abdullah Unar, Muhammad Hassan Danish, Hamdan Ahmed Pasha, Ummiya Tahir, Mubasher Ikram

Section of Otolaryngology, Head & Neck Surgery

Papillary thyroid carcinoma (PTC) is the most common type of all thyroid carcinomas and accounts for up to 90% of all thyroid malignancies. It is the most indolent form of the disease and has an excellent prognosis. On the other hand, Primary thyroid lymphoma (PTL) is a rare entity accounting for only about 1% to 5% of all thyroid malignancies and only 2% of extranodal lymphomas. Synchronous PTC and PTL is a very rare condition and only a few cases have been reported in the literature up till now. We report one such case in a 52-year-old lady who was …


The Immunoregulatory Landscape Of Human Tuberculosis Granulomas, Evan Li, Antony Rodriguez, Amber U Luong, David Allen, John Morgan Knight, Farrah Kheradmand, David B Corry Aug 2021

The Immunoregulatory Landscape Of Human Tuberculosis Granulomas, Evan Li, Antony Rodriguez, Amber U Luong, David Allen, John Morgan Knight, Farrah Kheradmand, David B Corry

Faculty, Staff and Student Publications

The allergic airway diseases chronic rhinosinusitis (CRS), allergic fungal rhinosinusitis (AFRS), asthma, allergic bronchopulmonary mycosis/aspergillosis (ABPM/A), and cystic fibrosis (CF) share a common immunological signature marked by T H 2 and TH 17 cell predominant immune responses, the production of IgE antibody, and atypical inflammatory cell infiltrate that includes eosinophils and other innate immune effector cells. Severe forms of these disorders have long been recognized as being related to hypersensitivity reactions to environmental fungi. Increasingly however,environmental fungi are assuming a more primary role in the etiology of these disorders, with airway mycosis, a type of non-invasive airway fungal infection,recognized as …


Adenoid Cystic Carcinoma Of External Auditory Canal: A Rare Disease, Abdul Basit Shah Vardag, Muhammad Hassan Danish, Mohammad Sohail Awan, Muhammad Usman Tariq, Omaima Anis Bhatti, Muhammad Hammad Deewani Jul 2021

Adenoid Cystic Carcinoma Of External Auditory Canal: A Rare Disease, Abdul Basit Shah Vardag, Muhammad Hassan Danish, Mohammad Sohail Awan, Muhammad Usman Tariq, Omaima Anis Bhatti, Muhammad Hammad Deewani

Section of Otolaryngology, Head & Neck Surgery

External auditory canal, like other epithelialized surfaces is predisposed to malignancies such as Squamous cell carcinomas (SCC), melanomas and adenocarcinomas. In this background, malignancies like adenoid cystic carcinoma (ACC) are a rare occurrence and need to be thoroughly evaluated both locally and for distant extension. The malignancy needs to be addressed with an aggressive approach surgically with adequate marginal clearance. The role of radiation is debatable considering the outcomes in the limited data. Here we present the case of a 35-year-old female who came in with otalgia and otorrhea associated with a mass in the external auditory canal. After biopsy …


Lymphatic Dissemination And Axillary Web Syndrome In Primary Cutaneous Tuberculosis Secondary To Needlestick Injury, Alexandre E Malek, Caroline E Fife, John C Rasmussen, Ron J Karni, John R Morrow, Audrey Wanger, Eva M Sevick-Muraca, Luis Ostrosky-Zeichner Jul 2021

Lymphatic Dissemination And Axillary Web Syndrome In Primary Cutaneous Tuberculosis Secondary To Needlestick Injury, Alexandre E Malek, Caroline E Fife, John C Rasmussen, Ron J Karni, John R Morrow, Audrey Wanger, Eva M Sevick-Muraca, Luis Ostrosky-Zeichner

Faculty, Staff and Student Publications

Cutaneous tuberculosis secondary to skin inoculation of Mycobacterium tuberculosis is uncommon but it can occur in the health care settings. Herein, we report an unusual case of primary cutaneous tuberculosis of the thumb following a needlestick injury. The infection progressed with a necrotic granuloma, lymphatic dysfunction as visualized by near-infrared fluorescence lymphatic imaging, and the development of an axillary web syndrome.


Inferior Turbinate Hypertrophy Presenting As Bilateral Nasal Masses In A Paediatric Patient, Nicholas Armando Rossi, Megan L Swonke, Shiva Daram Jun 2021

Inferior Turbinate Hypertrophy Presenting As Bilateral Nasal Masses In A Paediatric Patient, Nicholas Armando Rossi, Megan L Swonke, Shiva Daram

Faculty, Staff and Student Publications

No abstract provided.


Prevalence Of Allergic Fungal Sinusitis Among Patients With Nasal Polyposis, Rahim Dhanani, Shayan Khalid, Basit Salam, Hamdan Ahmed Pasha, Farah Hafiz Yousuf, Mubasher Ikram Jun 2021

Prevalence Of Allergic Fungal Sinusitis Among Patients With Nasal Polyposis, Rahim Dhanani, Shayan Khalid, Basit Salam, Hamdan Ahmed Pasha, Farah Hafiz Yousuf, Mubasher Ikram

Section of Otolaryngology, Head & Neck Surgery

Objective: To determine the frequency of allergic fungal sinusitis among patients with nasal polyps, and to compare Lund-Mackay scores of patients with and without allergic fungal sinusitis.
Methods: The cross-sectional longitudinal study was conducted at a tertiary healthcare centre in Karachi, Pakistan, from December 2016 to November 2018, and comprised patients with sinonasal polyposis undergoing surgery. The patients were categorised as having allergic fungal sinusitis when histopathology showed allergic mucin with fungal hyphae and culture was positive for fungal growth. Lund-Mackay scoring of each patient was noted and mean scores of allergic fungal sinusitis and non-allergic fungal sinusitis patients were …


Level I Nodal Positivity As A Factor For Involvement Of The Submandibular Gland In Oral Cavity Carcinoma: A Case Series Report, Hamdan Ahmed Pasha, Rahim Dhanani, Shayan Khalid, Kulsoom Ghias, Mumtaz Jamshed Khan Apr 2021

Level I Nodal Positivity As A Factor For Involvement Of The Submandibular Gland In Oral Cavity Carcinoma: A Case Series Report, Hamdan Ahmed Pasha, Rahim Dhanani, Shayan Khalid, Kulsoom Ghias, Mumtaz Jamshed Khan

Section of Otolaryngology, Head & Neck Surgery

Introduction: The routine practice of neck dissection in the surgical management of oral carcinoma has evolved into a more functionally conservative approach. Over time, the rationale for removal of the submandibular gland has been questioned. Routine extirpation of the submandibular gland can aggravate the xerostomia experienced by many patients, significantly affecting their quality of life.
Objective: The objective of the present study was to determine the incidence of submandibular gland metastases in oral cavity carcinoma and to identify possible factors that may affect their involvement.
Methods: A total of 149 cases of oral carcinoma presenting at a private tertiary care …


Role Of Contrast Enhanced Computed Tomography In Assessing Cervical Lymph Node Metastases In Oral Cavity Squamous Cell Carcinoma, Talha Ahmed Qureshi, Muhammad Wasif, Mohammad Sohail Awan, Adnan Yar Muhammad, Ainulakbar Mughal, Abdullah Ameen Mar 2021

Role Of Contrast Enhanced Computed Tomography In Assessing Cervical Lymph Node Metastases In Oral Cavity Squamous Cell Carcinoma, Talha Ahmed Qureshi, Muhammad Wasif, Mohammad Sohail Awan, Adnan Yar Muhammad, Ainulakbar Mughal, Abdullah Ameen

Section of Otolaryngology, Head & Neck Surgery

Objective: To evaluate the diagnostic accuracy of contrast-enhanced computed tomography scan in detecting cervical nodal metastasis in oral cavity squamous cell carcinoma.
Methods: The retrospective cross-sectional study was conducted at Aga Khan University Hospital, Karachi, Pakistan. and comprised records from January 1, 2015, to October 31, 2016, of patients diagnosed with oral cavity squamous cell carcinoma and who underwent surgical resection of primary tumour along with neck dissection after having a contrast-enhanced computed tomography scan of head and neck. Diagnostic accuracy of the scans was calculated using final histopathology as the gold standard. All scans were reviewed by a consultant …


Screening For Malnutrition In Oral Cavity Cancer Patients Prior To Treatment: A Cross-Sectional Study, Haissan Iftikhar, Anwar Suhail, Amna Urooba, Karim Rizwan Nathani, Zeeshan Shaikh, Muhammad Wasif Jan 2021

Screening For Malnutrition In Oral Cavity Cancer Patients Prior To Treatment: A Cross-Sectional Study, Haissan Iftikhar, Anwar Suhail, Amna Urooba, Karim Rizwan Nathani, Zeeshan Shaikh, Muhammad Wasif

Section of Otolaryngology, Head & Neck Surgery

This study was conducted to assess the frequency of pre-operative malnourishment in patients being treated for oral cavity squamous cell carcinoma. A retrospective chart review was carried out at the Aga Khan University Hospital, Karachi, on 62 patients. Patients were screened pre-operatively through a standard nutritional assessment tool at the time of admission to assess for malnutrition. Mean age of presentation was 48.34±13.11 years, mean height was 165 ± 8.62cm, weight 66.09±14.98 kg and BMI of 24.09±4.84. Males were 82.3% and 17.7% were females. At the time of admission, a significant number or patients, 12 (19.4%) were prone to malnourishment, …


Training In Temporal Bone Surgery: A Review Of Current Practices, Muhammad Wasif, Abdul Basit Shah Vardag, Ainulakbar Mughal, Syed Akbar Abbas, Shayan Khalid, Hamdan Ahmed Pasha Jan 2021

Training In Temporal Bone Surgery: A Review Of Current Practices, Muhammad Wasif, Abdul Basit Shah Vardag, Ainulakbar Mughal, Syed Akbar Abbas, Shayan Khalid, Hamdan Ahmed Pasha

Section of Otolaryngology, Head & Neck Surgery

The temporal bone consists of complex anatomy, and the presence of various vital structures in close proximity makes the surgery of temporal bone highly challenging. Such a surgery requires years of training under the direct observation of trainers. Over the course of history, different training models have been adopted by experts to help train the young surgeons in this complex procedure. Cadaveric dissections of the temporal bone remains the gold standard in training of residents as the cadavers present the actual anatomical details which the surgeons encounter while operating on patients. However, due to scarcity of available cadavers, their one-time-only …


Use Of Endoscope In Teaching Of Otolaryngology Residents About Site And Size Of Tympanic Membrane Perforation And Its Impact On Degree Of Hearing Loss In Adult Patients: A Cross Sectional Study, Muntazir Hussain, Muhammad Wasif, Mohammad Sohail Awan, Shayan Khalid, Zeeshan Sheikh, Haissan Iftikhar Jan 2021

Use Of Endoscope In Teaching Of Otolaryngology Residents About Site And Size Of Tympanic Membrane Perforation And Its Impact On Degree Of Hearing Loss In Adult Patients: A Cross Sectional Study, Muntazir Hussain, Muhammad Wasif, Mohammad Sohail Awan, Shayan Khalid, Zeeshan Sheikh, Haissan Iftikhar

Section of Otolaryngology, Head & Neck Surgery

Objective: To determine the association between site and size of perforation of the tympanic membrane and the level of conductive hearing.
Methods: The cross-sectional study was conducted from November 2015 to October 2016 at Aga Khan University Hospital Karachi and comprised patients with tympanic membrane perforation without any other middle-ear disease. Karl-Storz Rigid Endoscope attached to a camera was used to take pictures of the tympanic membrane. Site of the perforation was determined using a vertical line to divide the membrane into two anterior and posterior halves. Size of the perforation was calculated as a percentage of the total membrane …