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Jafari N, Izadi F, Ebadi A, Talebian S, Dabirmoghadam P, Jordens K, Bahmani K, Van Lierde K. Comparison of Laryngeal Palpatory Scale (LPS), With Surface Electromyographic Measures in Patients with Muscle Tension Dysphonia. J Voice 2024; 38:245.e37-245.e48. [PMID: 34627703 DOI: 10.1016/j.jvoice.2021.08.021] [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: 06/28/2021] [Revised: 08/08/2021] [Accepted: 08/15/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVES The aim of this study was to examine the laryngeal palpatory scale (LPS) to ascertain possible correlation with neck surface electromyography (sEMG). METHODS Two otolaryngologists and one certified speech-language pathologist assessed 21 participants (seven women and 14 men; with a mean age of 42.8 years; ranged: 21 to 70 years) with muscle tension dysphonia (MTD) diagnosed with the current version of the LPS rating system. Consequently, relationships between LPS and objective measures of sEMG were evaluated using Spearman's rank correlation coefficient (r). RESULTS The results show that there was a low to moderate between correlations, (statistically positive and significant in 10 correlations among the examined items/states). CONCLUSIONS In conclusion, low-moderate positive correlations between sEMG and LPS ratings were found with particular strength for LPS ratings of tightness and ratings made during dynamic tasks. Further investigations can provide useful evidence for researchers and clinicians to document treatment outcomes by using LPS and sEMG in patients with MTD and leading to the more standardized care and improved information about patient progress.
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Affiliation(s)
- Narges Jafari
- Centre for Speech and Language Sciences (CESLAS), Department of rehabilitation Sciences, University Ghent, Ghent, Belgium.
| | - Farzad Izadi
- ENT and Head and Neck Research Center and Department, Iran University of Medical Science, Tehran, Iran
| | - Abbas Ebadi
- Behavioral Sciences Research Center, Life Style Institute, Faculty of Nursing, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Saeed Talebian
- Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
| | - Payman Dabirmoghadam
- Otolaryngology Research Center, Tehran University of Medical Science, Tehran, Iran
| | - Karolien Jordens
- Institute of Cellular Medicine, Faculty of Medical Sciences, Newcastle University Newcastle, United Kingdom
| | - Kamran Bahmani
- Department of Audiology, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
| | - Kristiane Van Lierde
- Centre for Speech and Language Sciences (CESLAS), Department of rehabilitation Sciences, University Ghent, Ghent, Belgium; Department of Speech-Language Pathology and Audiology, University of Pretoria, Pretoria, South-Africa
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Breininger SP, Izadi F, Sharpe B, Secrier M, Gibson J, Walker R, Rahman S, Devonshire G, Lloyd M, Walters Z, Fitzgerald R, Rose-Zerilli M, Underwood T. O086 Genomic analysis of response to neoadjuvant chemotherapy in oesophageal adenocarcinoma. Br J Surg 2022. [DOI: 10.1093/bjs/znac242.086] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract
Introduction
Oesophageal adenocarcinoma (OAC) is the ninth most common cancer worldwide with a mortality of over 500,000 deaths yearly. Neoadjuvant chemotherapy (NAC) followed by surgery is the standard of care (SOC) for locally advanced OAC. Although almost all patients receive chemotherapy as SOC, fewer than 20% obtain a clinically meaningful response and benefit before surgery. The OAC genome is complex and heterogeneous between patients, and it is not yet understood whether specific mutational patterns result in chemotherapy sensitivity or resistance.
Methods
To identify associations between genomic events and response to NAC in OAC, a comparative genomic analysis was performed in 65 patients using whole-genome sequencing. We defined response to NAC using Mandard Tumour Regression Grade TRG), with responders classified as TRG1-2 (n=27) and non-responders classified as TRG4- 5 (n=38).
Results
We report a higher non-synonymous mutation burden in responders (median 2.08/Mb vs 1.70/Mb, P=0.036) and elevated copy number variation (CNV) in non-responders (282 vs 136/patient, P<0.001). We identified CNVs unique to each group, with cell cycle (CDKN2A, CCND1), c-Myc (MYC), RTK/PIK3 (KRAS, EGFR) and gastrointestinal differentiation (GATA6) pathway genes being specifically altered in non-responders. Of particular interest was the identification of the Neuron Navigator-3 (NAV3), a known tumour suppressor downstream of EGFR, which was mutated exclusively in 22% of non-responders.
Conclusion
We characterise genetic features and mutations that are uniquely associated with response to NAC. We envision a treatment pipeline that incorporates driver mutation profiling in OAC, combining response prediction with targeted therapies enhancing response to NAC and improving survival outcomes.
Take-home message
Developing a method of determining an OAC patient's response to neoadjuvant chemotherapy before treatment is administered is desperately needed and will improve patient outcome and quality of life. We identified a number of aberrations in the genome that were unique to non-responders to chemotherapy compared to responders, particularly a known tumour suppressor gene namely Neuron Navigator-3, suggesting that these events may contribute to chemoresistance in these patients. Our work characterises pre-existing genomic alterations that have potential as biomarkers for resistance or sensitivity to NAC.
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Affiliation(s)
- SP Breininger
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
| | - F Izadi
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
- Centre for NanoHealth, Swansea University Medical School , Singleton Campus, Swansea
| | - B Sharpe
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
- Institute for Life Sciences, University of Southampton
| | - M Secrier
- UCL Genetics Institute, Division of Biosciences, University College London
| | - J Gibson
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
- Institute for Life Sciences, University of Southampton
| | - R Walker
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
| | - S Rahman
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
| | - G Devonshire
- Cancer Research UK Cambridge Institute, University of Cambridge
| | - M Lloyd
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
| | - Z Walters
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
- Institute for Life Sciences, University of Southampton
| | - R Fitzgerald
- MRC Cancer Unit, Hutchison/MRC Research Centre, University of Cambridge
| | - M Rose-Zerilli
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
- Institute for Life Sciences, University of Southampton
| | - T Underwood
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
- Institute for Life Sciences, University of Southampton
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Kumar S, Izadi F, Ončák M, Limão-Vieira P, Denifl S. Hexachlorobenzene-negative ion formation in electron attachment experiments. Phys Chem Chem Phys 2022; 24:13335-13342. [PMID: 35608112 DOI: 10.1039/d2cp01360f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this contribution, we report a comprehensive study on the formation of hexachlorobenzene (C6Cl6) negative ions probed by low-energy electron interactions from 0 up to 12 eV in a gas-phase crossed beam experiment. The anionic yields as a function of the electron energy reveal a rich fragmentation pattern of the dissociative electron attachment process, yet the most intense ion has been assigned to the non-dissociated parent anion that survives long enough within the detection time window. Other less intense fragment anions have been assigned as Cl-, Cl2-, C6Cl4-, and C6Cl5-. The experimental results are accompanied by quantum chemical calculations at various levels of accuracy, providing an insight into the electronic structure, thermochemical thresholds, electron affinities and structures of neutral and anionic molecular species. The electron attachment process induces a considerable geometry change in the temporary-negative ion relative to the neutral molecule, where the most intense fragment anion assigned to Cl- can be formed solely through a curve crossing involving a π*/σ* coupling. The yield of chlorine anions shows a signature of vibrational excitation reminiscent of a Jahn-Teller distortion.
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Affiliation(s)
- S Kumar
- Atomic and Molecular Collisions Laboratory, CEFITEC, Department of Physics, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
| | - F Izadi
- Institute for Ion Physics and Applied Physics, University of Innsbruck, Technikerstrasse 25, A-6020 Innsbruck, Austria.
| | - M Ončák
- Institute for Ion Physics and Applied Physics, University of Innsbruck, Technikerstrasse 25, A-6020 Innsbruck, Austria.
| | - P Limão-Vieira
- Atomic and Molecular Collisions Laboratory, CEFITEC, Department of Physics, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
| | - S Denifl
- Institute for Ion Physics and Applied Physics, University of Innsbruck, Technikerstrasse 25, A-6020 Innsbruck, Austria.
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Izadi F, Ahmadi A, Hosseinzadeh F, Mirsalehi M, Shakiba Y, Bahar MA, Balali M. Assessment of Human Leukocyte Antigen Differences between Smokers with Reinke's Edema and Those with Laryngeal Cancer. Iran J Otorhinolaryngol 2022; 34:95-105. [PMID: 35655764 PMCID: PMC9119329 DOI: 10.22038/ijorl.2022.52799.2797] [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] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 02/06/2022] [Indexed: 01/24/2023]
Abstract
INTRODUCTION The present study aimed to assess human leukocyte antigen (HLA) typing differences between smokers with Reinke's edema and those with laryngeal squamous cell carcinoma (SCC). MATERIALS AND METHODS The HLA class I, II alleles were examined in 76 unrelated Iranian patients using low-resolution polymerase chain reaction with the sequence-specific primer (PCR-SSP) method. RESULTS The frequency of the HLA-A*36 allele and HLA-B*35 was significantly higher in patients with SCC. The frequency of HLA-DRB1*01 alleles in Reinke's edema was significantly higher, as compared to that in others. In the volunteer group, HLA-DRB1*13 and HLA-DRB1*15 were significantly higher. CONCLUSIONS As evidenced by the obtained results, HLA-A*36 was significantly higher in SCC, as compared to that in volunteers and Reinke's edema patients. It can be concluded that being positive for HLA-A*36 increases the chance of SCC by three times. This result should be further investigated in cohort studies conducted on larger samples. Furthermore, HLA-A*24 was significantly higher in the volunteer group, as compared to that in other groups. The HLADRB1*01 was remarkably higher in Reinke's edema, as compared to that in SCC.
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Affiliation(s)
- Farzad Izadi
- ENT and Head and Neck Research Center, the five Senses Health Institute, School of Medicine, Iran University of Medical Sciences.
| | - Aslan Ahmadi
- ENT and Head and Neck Research Center, the five Senses Health Institute, School of Medicine, Iran University of Medical Sciences.
| | - Farideh Hosseinzadeh
- ENT and Head and Neck Research Center, the five Senses Health Institute, School of Medicine, Iran University of Medical Sciences.
| | - Marjan Mirsalehi
- ENT and Head and Neck Research Center, the five Senses Health Institute, School of Medicine, Iran University of Medical Sciences.
| | - Yadollah Shakiba
- Regenerative Medicine Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Mohammad Ali Bahar
- Department of Immunology, Iran University of Medical Sciences, Tehran, Iran.
| | - Maryam Balali
- ENT and Head and Neck Research Center, the five Senses Health Institute, School of Medicine, Iran University of Medical Sciences.,Corresponding Author: ENT and Head and Neck Research Center, the five Senses Health Institute, School of Medicine, Iran University of Medical Sciences. E-mail:
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Lloyd M, Izadi F, Rahman S, Walker R, Hayden A, Harrington J, Grace B, Horne J, Machado M, Underwood T. O29: PREDICTING RESPONSE TO NEOADJUVANT THERAPY IN OESOPHAGEAL ADENOCARCINOMA PRE-TREATMENT BIOPSIES. Br J Surg 2021. [DOI: 10.1093/bjs/znab117.029] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Aims
We currently cannot predict which patients with locally advanced oesophageal adenocarcinoma will be amongst the 15-20% to gain a clinically important response to neoadjuvant therapy (NAT). This pilot study aimed to identify differentially expressed genes from oesophageal adenocarcinoma pre-treatment biopsies between responders and non-responders to NAT and develop methodology for predicting response.
Method
Response to NAT was assessed pathologically using Tumour Regression Grading (TRG). Pre-treatment formalin-fixed paraffin embedded samples were analysed with two nuclease protection assays (EdgeSeq, HTG = Oncology Biomarker Panel (OBP) and Precision Immuno-Oncology Panel (PIP)). Sequencing was performed on the NextSeq500 (Illumina).
Result
Whilst there was no difference in pre-treatment characteristics, responders (TRG1-2, n=26) had significantly better post-treatment pathology and overall survival than non-responders (TRG4-5, n=30). Genes up-regulated in responders were involved in regulating cell cycling, whereas genes up-regulated in non-responders were involved in cytokine signalling and the immune response. Neuronal artificial network models could predict response to NAT with overall accuracy of 73% and 68% for the OBP and PIP, respectively, which is promising considering the small sample size. As no model will be 100% accurate, we developed a model that could take patient's views into consideration with an adjustable probability threshold for classification.
Conclusion
This pilot study informs a biologically sound hypothesis for the basis of response to NAT and suggests prediction from pre-treatment biopsies may be possible using EdgeSeq. We now aim to validate these results in a larger study to inform a bespoke classifier of response to enable delivery of precision therapy.
Take-home message
In oesophageal adenocarcinoma, responders and non-responders to neoadjuvant therapy have different expression profiles. Through using EdgeSeq in larger studies, we may be able to predict which patients will respond to treatment, allowing for delivery of precision therapy.
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Azizi Ata N, Khoddami SM, Babaei-Ghazani A, Izadi F, Maroufizadeh S. Strain Elastosonography Measurement in Patients with Primary Muscle Tension Dysphonia Compared with Healthy Speakers: A Pilot Study. J Voice 2020; 36:290.e7-290.e15. [PMID: 33069507 DOI: 10.1016/j.jvoice.2020.05.026] [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] [Received: 02/12/2020] [Revised: 05/27/2020] [Accepted: 05/27/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVES The purpose of this study was to investigate real-time elastosonography (RTE) to measure strain of the (para)laryngeal muscles in patients with primary muscle tension dysphonia (MTD) and healthy speakers. STUDY DESIGN This is a cross-sectional study. METHODS Ten patients with primary MTD (37.8 ± 10.53 years) and 10 healthy speakers (36.9 ± 9.8 years) participated. Participants were diagnosed as MTD patient or healthy via voice history, voice self-assessment, perceptual voice evaluation, laryngeal palpation, and videostroboscopy. Then, RTE was performed to extract strain index (SI) and strain ratio (SR) for all participants. The RTE was utilized for the suprahyoid, thyrohyoid, and the cricothyroid muscles, both in right and left sides during rest, /a/, and /i/ prolongations. To study the effect of group, task, and interactive effect on the SI and SR, two-way repeated-measures analysis of variance was performed. RESULTS The effect of group on the SI was significant for the right cricothyroid (P ˂ 0.001). Significant effect of group on the SR obtained for the right suprahyoid, left thyrohyoid, and right cricothyroid (P < 0.05). Moreover, the only muscle whose SR was significantly affected by task was the left suprahyoid (P < 0.05). Compared to healthy speakers, the interactive effect was significantly lower in SI for the left cricothyroid, and higher in SR for both the right suprahyoid and left cricothyroid in patients (P < 0.05). CONCLUSIONS The RTE can discriminate patients with primary MTD from healthy subjects in some laryngeal muscles, especially suprahyoid and cricothyroid. It may be regarded as a clinical instrument in the assessment of MTD in future. Further studies with bigger sample size are recommended.
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Affiliation(s)
- Neda Azizi Ata
- Department of Speech Therapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyyedeh Maryam Khoddami
- Department of Speech Therapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran.
| | - Arash Babaei-Ghazani
- Neuromusculoskeletal Research Center, Department of Physical Medicine and Rehabilitation, Iran University of Medical Sciences, Tehran, Iran; Department of Physical Medicine and Rehabilitation, University of Montreal Health Center, Montreal, Canada
| | - Farzad Izadi
- Department of Ear, Nose, Throat, Head and Neck Research Center, Hazrat-e-Rasoul Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Saman Maroufizadeh
- Ph D in Biostatistics, School of Nursing and Midwifery, Gilan University of Medical Sciences, Rasht, Iran
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Mohseni M, Izadi F. Safe Use of Flammable Endotracheal Tubes During Anesthesia for Laryngeal Laser Surgery-Report of 1024 Cases and a Brief Literature Review. Iran J Otorhinolaryngol 2019; 31:225-227. [PMID: 31384588 PMCID: PMC6666936] [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] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
INTRODUCTION One of the major concerns in laryngeal laser surgery is the risk of airway fire. The introduction ofwrapped tubes and metal tubes has reduced the fire hazards. However, these tubes are expensive and do not provide convenient access to the surgical field. There are few laboratory studies addressing the resistance of polyvinylchloride tubes against ignition in the given circumstances. Nevertheless, its safety should be approved in clinical practices. MATERIALS AND METHODS This retrospective studyevaluated the airway management on 1024 patients undergoing laryngeal laser surgery. The data collection included the information about the type of endotracheal tube (ETT), mode of ventilation, and airway hazards (e.g., tube ignition). RESULTS Polyvinylchloride tubes and conventional positive pressure ventilation was applied for most of the patients (84.1%). The tube cuff was pierced with laser beam in 22 cases (2.5%). However, there was no case of ETT ignition or airway fire. CONCLUSION Polyvinylchloride tubes can be safely used in this subset of surgeries pending meticulous attention to the safety recommendations.
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Affiliation(s)
- Masood Mohseni
- Department of Anesthesiology, Iran University of Medical Sciences, Tehran, Iran.,Corresponding Author: Department of Anesthesiology, Iran University of Medical Sciences, Tehran, Iran. Tel: + 98(0)21-64352326 , E-mail:
| | - Farzad Izadi
- Department of Otolaryngology, Iran University of Medical Sciences, Tehran, Iran.
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Torabinenezhad F, Izadi F, Pourshahbaz A, Bijankhan M, Eslami M, Rohani M, Ebrahimipor M. Acoustic Parameters in Persian-Speaking Patients with Dysphonia. Func Disabil J 2018. [DOI: 10.30699/fdisj.1.3.8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Akbari E, Seifpanahi S, Ghorbani A, Izadi F, Torabinezhad F. The Effects of Size and Type of Vocal Fold Polyp on Some Acoustic Voice Parameters. Iran J Med Sci 2018; 43:158-163. [PMID: 29749984 PMCID: PMC5936847] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Vocal abuse and misuse would result in vocal fold polyp. Certain features define the extent of vocal folds polyp effects on voice acoustic parameters. The present study aimed to define the effects of polyp size on acoustic voice parameters, and compare these parameters in hemorrhagic and non-hemorrhagic polyps. METHODS In the present retrospective study, 28 individuals with hemorrhagic or non-hemorrhagic polyps of the true vocal folds were recruited to investigate acoustic voice parameters of vowel/ æ/ computed by the Praat software. The data were analyzed using the SPSS software, version 17.0. According to the type and size of polyps, mean acoustic differences and correlations were analyzed by the statistical t test and Pearson correlation test, respectively; with significance level below 0.05. RESULTS The results indicated that jitter and the harmonics-to-noise ratio had a significant positive and negative correlation with the polyp size (P=0.01), respectively. In addition, both mentioned parameters were significantly different between the two types of the investigated polyps. CONCLUSION Both the type and size of polyps have effects on acoustic voice characteristics. In the present study, a novel method to measure polyp size was introduced. Further confirmation of this method as a tool to compare polyp sizes requires additional investigations.
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Affiliation(s)
- Elaheh Akbari
- Department of Speech and Language Pathology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Sadegh Seifpanahi
- Department of Speech and Language Pathology, School of Rehabilitation Sciences, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Ali Ghorbani
- Department of Speech and Language Pathology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Farzad Izadi
- ENT-Head and Neck Research Center, Hazrat Rasoul AKram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Farhad Torabinezhad
- Department of Speech and Language Pathology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
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Eftekhaar NS, Karbalaie Niya MH, Izadi F, Teaghinezhad-S S, Keyvani H. Human Papillomavirus (HPV) Genotype Distribution in Patients with Recurrent Respiratory Papillomatosis (RRP) in Iran. Asian Pac J Cancer Prev 2017; 18:1973-1976. [PMID: 28749631 PMCID: PMC5648407 DOI: 10.22034/apjcp.2017.18.7.1973] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Background: Currently, recurrent respiratory papillomatosis (RRP), common laryngeal warts in the upper airway systems of children and adults are on the increase. Human papillomaviruses (HPVs) are suspected as causative agents. This study concerned HPV incidence and genotype distribution in Iranian RRP patients. Methods: Specimens were collected from RRP patients referred to hospitals affiliated with Iran University of Medical Sciences, Tehran, Iran, from Dec 2014 to Feb 2016 in a cross sectional study. After DNA extraction with an QIAamp® DNA FFPE Tissue Kit, conventional PCR was performed and products were sequenced. INNO-LiPA HPV Genotyping Extra assays as another method for genotyping were conducted. CLC Main Workbench 5 and MEGA6 software as well as SPSS v.20 were used for further analysis. Results: Of the total of 12 patients, 6 (50%) were male. Total mean age (y) ± SD was 9.8±6.3. All RRP patients suffered from HPV infection, with HPV-6 found in 75% (9/12) and HPV-11 in 16.7% (2/12) and one co-infection by both HPV-6 and 11. Statistically, there were no correlations between demographic variables and HPV infection. Conclusion: The major cause of RRP is HPV genotypes 6 and 11 increasing the risk of a requirement for medical interventions. Broader studies are needed to clarify the major risk factors in RRP patients.
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Affiliation(s)
- Negin Sadat Eftekhaar
- Department of Microbiology, Faculty of Basic Science, Karaj branch, Islamic Azad University, Alborz, Iran.
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11
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Seifpanahi S, Izadi F, Jamshidi AA, Shirmohammadi N. Effects of transcutaneous electrical stimulation on vocal folds adduction. Eur Arch Otorhinolaryngol 2017; 274:3423-3428. [DOI: 10.1007/s00405-017-4619-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 05/22/2017] [Indexed: 10/19/2022]
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Izadi F, Mahjoubi F, Farhadi M, Kalayinia S, Bidmeshkipour A, Tavakoli MM, Samanian S. Extracellular matrix protein 1 gene (ECM1) mutations in nine Iranian families with lipoid proteinosis. Indian J Med Res 2017; 143:303-7. [PMID: 27241643 PMCID: PMC4892076 DOI: 10.4103/0971-5916.182620] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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] [Indexed: 11/14/2022] Open
Abstract
Background & objectives: Lipoid proteinosis (LP) is an autosomal recessive disease. Clinical characteristics of this disease are hoarse voice, scarring of the skin, brain calcifications, and eyelid papules (moniliform blepharosis). Mutations in the ECM1 gene on 1q21.2 are responsible for this disease. This study was conducted to investigate the mutation spectrum of ECM1 gene in nine Iranian families having at least one LP patient diagnosed clinically. Methods: The entire ECM1 gene was screened using PCR and direct sequencing in nine Iranian families with 12 suspected LP patients who were referred to the clinic, along with their parents and siblings. Thirty healthy individuals were included as controls. Results: In only one patient a homozygous G>A transition at nucleotide c.806 in exon 7 was detected. A G>A substitution at nucleotide 1243 in exon 8 that changes glycine (GGT) to serine (AGT) was observed in most of our patients. Furthermore, in one patient there was a change in the sequence of intron 8, the A>T transition in nucleotide 4307. In addition, in two cases (one patient and one healthy mother with affected child) there was a C (4249) deletion in intron 8. Interpretation & conclusions: Our results indicate that although mutation in ECM1gene is responsible for lipoid proteinosis, it is likely that this is not the only gene causing this disease and probably other genes may be involved in the pathogenesis of the LP disease.
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Affiliation(s)
- Farzad Izadi
- ENT & HNS Research Center, Hazart Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Frouzandeh Mahjoubi
- Medical Biotechnology Institute, National Institute of Genetic Engineering & Biotechnology (NIGEB), Tehran, Iran
| | - Mohammad Farhadi
- Department & Research Center of Otolaryngology Head & Neck Surgery, Hazrat Rasool Hospital, Tehran University of Medical Sciences & Health Care Services, Tehran, Iran
| | | | | | - Mohammad Moein Tavakoli
- Department & Research Center of Otolaryngology Head & Neck Surgery, Hazrat Rasool Hospital, Tehran University of Medical Sciences & Health Care Services, Tehran, Iran
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Ahmadi A, Salem MM, Safdarian M, Ilkhani S, Hamidian R, Cheraghipour M, Daneshvar A, Izadi F. Chondroradionecrosis of the Larynx in a Patient with Laryngeal: A Case Report. Iran J Otorhinolaryngol 2017; 29:179-180. [PMID: 28589113 DOI: pmid/28589113] [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] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Actinomycosis of the larynx has been rarely reported in the literature and usually occurs in patients with a history of laryngeal carcinoma and radiation therapy. However, its co-existence with chondroradionecrosis due to radiotherapy is even rarer. The most common site of infection is the cervicofacial region, especially in the submandibular area. CASE REPORT Here we report a 63-year-old male with a history of chemoradiotherapy because of laryngeal cancer 1 year earlier who presented with laryngeal actinomycosis. After prolonged penicillin-based treatment, the patient underwent thyroid cartilage defect reconstructive surgery because of a laryngocutaneous fistula due to chondroradionecrosis. The diagnosis, work-up, and management of the case are discussed, as well as a review of the literature. CONCLUSION Although actinomycotic infection of the larynx is rare, it should be considered in the differential diagnosis of laryngeal complaints, especially in immunocompromised patients.
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Affiliation(s)
- Aslan Ahmadi
- ENT-Head and Neck Surgery Research Center, Hazrat Rasoul Akram Hospital , Iran University of Medical Science, Tehran, Iran
| | - Mohammad Mahdi Salem
- ENT-Head and Neck Surgery Research Center, Hazrat Rasoul Akram Hospital , Iran University of Medical Science, Tehran, Iran
| | - Mahdi Safdarian
- ENT-Head and Neck Surgery Research Center, Hazrat Rasoul Akram Hospital , Iran University of Medical Science, Tehran, Iran
| | - Shahriar Ilkhani
- ENT-Head and Neck Surgery Research Center, Hazrat Rasoul Akram Hospital , Iran University of Medical Science, Tehran, Iran
| | - Roghaieh Hamidian
- ENT-Head and Neck Surgery Research Center, Hazrat Rasoul Akram Hospital , Iran University of Medical Science, Tehran, Iran
| | - Mostafa Cheraghipour
- ENT-Head and Neck Surgery Research Center, Hazrat Rasoul Akram Hospital , Iran University of Medical Science, Tehran, Iran
| | - Ali Daneshvar
- ENT-Head and Neck Surgery Research Center, Hazrat Rasoul Akram Hospital , Iran University of Medical Science, Tehran, Iran
| | - Farzad Izadi
- ENT-Head and Neck Surgery Research Center, Hazrat Rasoul Akram Hospital , Iran University of Medical Science, Tehran, Iran
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Khoddami SM, Talebian S, Izadi F, Ansari NN. Validity and Reliability of Surface Electromyography in the Assessment of Primary Muscle Tension Dysphonia. J Voice 2017; 31:386.e9-386.e17. [PMID: 27742497 DOI: 10.1016/j.jvoice.2016.09.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [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: 05/07/2016] [Revised: 09/04/2016] [Accepted: 09/08/2016] [Indexed: 02/05/2023]
Abstract
OBJECTIVE The study aims to evaluate the reliability and the discriminative validity of surface electromyography (sEMG) in the assessment of patients with primary muscle tension dysphonia (MTD). STUDY DESIGN The study design is cross-sectional. METHODS Fifteen patients with primary MTD (mean age: 34.07 ± 10.99 years) and 15 healthy volunteers (mean age: 34.53 ± 10.63 years) were included. All participants underwent evaluation of sEMG to record the electrical activity of the thyrohyoid and cricothyroid muscles. The outcome measures were the root mean square (RMS), activity peak, duration, and time to the peak activity, which were obtained during /a/ and /i/ prolongation for test-retest reliability. RESULTS The test-retest reliability was good to excellent for the RMS and peak activity measures (intraclass correlation coefficient [agreement] [ICCagreement] = 0.49-0.98). The reliability for the activity duration was poor to excellent (ICCagreement = 0.19-0.9). Poor test-retest reliability was found for the time to peak measure (ICCagreement = 0.15-0.37). The standard error of measurement for all sEMG measures was between 0.41 and 2.05. The smallest detectable change (SDC) was calculated between 1.13 and 5.66. The highest SDC values were obtained for the peak and the lowest SDCs were documented for the duration (5.66 and 1.13, respectively). All sEMG measures were not able to discriminate between the MTD patients and healthy subjects (P > 0.05). CONCLUSIONS The sEMG is a reliable tool to measure the RMS, the peak activity, and the activity duration in primary MTD. However, it is not able to discriminate the patients with primary MTD from healthy subjects.
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Affiliation(s)
- Seyyedeh Maryam Khoddami
- Department of Speech therapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeed Talebian
- Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran.
| | - Farzad Izadi
- Department of Ear, Nose, Throat, Head and Neck Research Center, Hazrat-e-Rasoul Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Noureddin Nakhostin Ansari
- Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
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15
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Izadi F, Ahmadi A, Daneshvar A, Safdarian M. Tapia's Syndrome after Corrective Jaw Surgery under General Anesthesia: A Case Report. Iran J Otorhinolaryngol 2017; 29:109-111. [PMID: 28393059 PMCID: PMC5380397] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
INTRODUCTION Tapia's syndrome is a rare complication of recurrent laryngeal and hypoglossal nerve paralysis due to anesthetic airway mismanagement or malpositioning of the patient's head during surgery. CASE REPORT Here we present a case of Tapia's syndrome in a 22-year-old male after corrective jaw surgery under general anesthesia, with a long period of recovery, related to airway management procedures and/or overstretching of the neck during positioning for surgery. CONCLUSION Although it is a rare condition, every surgeon should be aware of Tapia's syndrome in order to consider the correct positioning of the head and endotracheal tube during surgery and avoid this complication.
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Affiliation(s)
- Farzad Izadi
- ENT-Head and Neck Surgery Research Center, Hazrat Rasoul Akram Hospital , Iran University of Medical Science, Tehran, Iran
| | - Aslan Ahmadi
- ENT-Head and Neck Surgery Research Center, Hazrat Rasoul Akram Hospital , Iran University of Medical Science, Tehran, Iran
| | - Ali Daneshvar
- ENT-Head and Neck Surgery Research Center, Hazrat Rasoul Akram Hospital , Iran University of Medical Science, Tehran, Iran
| | - Mahdi Safdarian
- ENT-Head and Neck Surgery Research Center, Hazrat Rasoul Akram Hospital , Iran University of Medical Science, Tehran, Iran,Corresponding Author: ENT-Head and Neck Surgery Research Center, Hazrat Rasoul Akram Hospital , Iran University of Medical Science, Tehran, IranTel: 9821 77834126, E-mail:
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16
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Jafari N, Salehi A, Izadi F, Talebian Moghadam S, Ebadi A, Dabirmoghadam P, Faham M, Shahbazi M. Vocal Function Exercises for Muscle Tension Dysphonia: Auditory-Perceptual Evaluation and Self-Assessment Rating. J Voice 2016; 31:506.e25-506.e31. [PMID: 27993500 DOI: 10.1016/j.jvoice.2016.10.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [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: 05/11/2016] [Accepted: 10/12/2016] [Indexed: 12/01/2022]
Abstract
OBJECTIVE Muscle tension dysphonia (MTD) is a functional dysphonia, which appears with an excessive tension in the intrinsic and extrinsic laryngeal musculatures. MTD can affect voice quality and quality of life. The purpose of the present study was to assess the effectiveness of vocal function exercises (VFEs) on perceptual and self-assessment ratings in a group of 15 subjects with MTD. METHODS The study comprised 15 subjects with MTD (8 men and 7 women, mean age 39.8 years, standard deviation 10.6, age range 24-62 years). All participants were native Persian speakers who underwent a 6-week course of VFEs. The Voice Handicap Index (VHI) (the self-assessment scale) and Grade, Roughness, Breathiness, Asthenia, Strain (GRBAS) scale (perceptual rating of voice quality) were used to compare pre- and post-VFEs. RESULTS GRBAS data of patients before and after VFEs were compared using Wilcoxon signed-rank test, and VHI data of patients pre- and post-VFEs were compared using Student paired t test. These perceptual parameters showed a statistically significant improvement in subjects with MTD after voice therapy (significant at P < 0.05 (*) and P < 0.004 (**)). Also results indicated statistically noticeable reduction in the mean VHI scores across subjects with MTD (significant at P < 0.05 (*) and P < 0.004 (**)). CONCLUSIONS Significant improvement after therapy for participants has been observed by the aid of auditory-perceptual ratings of voice quality (with the GRBAS scale) and the patient's self-assessment ratings measurements (with the VHI). As a result, the data provide evidence regarding the efficacy of VFEs in the treatment of patients with MTD.
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Affiliation(s)
- Narges Jafari
- Department of Speech Therapy, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Abolfazl Salehi
- Department of Speech Therapy, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
| | - Farzad Izadi
- Department of Ear, Nose, Throat, Head and Neck Research Center, Hazrat-e-Rasoul Hospital, Tehran, Iran
| | - Saeed Talebian Moghadam
- Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Ebadi
- Department of Nursing, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Payman Dabirmoghadam
- Otolaryngology Research Center, Tehran University of Medical Science, Tehran, Iran
| | - Maryam Faham
- Department of Speech and Language Pathology, School of Rehabilitation Science, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Shahbazi
- Department of Speech Therapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
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Jafari N, Izadi F, Salehi A, Dabirmoghaddam P, Yadegari F, Ebadi A, Moghadam ST. Objective Voice Analysis of Pediatric Cochlear Implant Recipients and Comparison With Hearing Aids Users and Hearing Controls. J Voice 2016; 31:505.e11-505.e18. [PMID: 27865551 DOI: 10.1016/j.jvoice.2016.10.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 07/22/2016] [Revised: 10/21/2016] [Accepted: 10/25/2016] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Phonation is influenced by hearing as a feedback mechanism. The purpose of the present study was to compare selected acoustic parameters in children using cochlear implants (CIs), those using hearing aids (HA), and their normal-hearing (NH) peers. METHODS The participants were 15 children using CI (mean age: 72 months), 15 children using HA (mean age: 74 months), and 15 NH children (mean age: 77 months). The vowel /a/ was produced to measure perturbation and mean fundamental frequency. The six Persian vowels in /CbVCd/ were obtained to extract vowel duration. Data were analyzed by one-way analysis of variance. RESULTS Results revealed a statistically significant difference between the NH group and the HA group regarding fundamental frequency (F2,51 = 3.443, P < 0.05), jitter local (F2,51 = 1.629, P < 0.05), jitter local absolute (F2,51 = 6.519, P < 0.001), jitter rap (F2,51 = 7.151, P < 0.001), jitter ppq5 (F2,51 = 5.894, P < 0.001), shimmer local (%) (F2,51 = 8.070, P < 0.001), shimmer local (dB) (F2,51 = 3.884, P < 0.05), shimmer apq3 (F2,51 = 4.926, P < 0.05), shimmer apq5 (F2,51 = 8.442, P < 0.001), and harmonic-to-noise ratio (F2,51 = 4.117, P < 0.001). The mean values of the duration of all six vowels were significantly greater in children with CI and HA than in NH children (P < 0.001). CONCLUSION It seems that after 8 months of using CI, auditory control of voice production would be enabled. Furthermore, children with hearing impairment potentially regard vowel sound duration as a distinguishing feature, whereas in NH speakers, the duration has the least effect in vowel identification.
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Affiliation(s)
- Narges Jafari
- Department of Speech Therapy, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
| | - Farzad Izadi
- Department of Ear, Nose, Throat, Head and Neck Research Center, Hazrat-e-Rasoul Hospital, Tehran, Iran
| | - Abolfazl Salehi
- Department of Speech Therapy, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | | | - Fariba Yadegari
- Department of Speech Therapy, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Abbas Ebadi
- Department of Nursing, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Saeed Talebian Moghadam
- Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
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Seifpanahi S, Izadi F, Jamshidi AA, Torabinezhad F, Sarrafzadeh J, Mohammadi S. Role of the Internal Superior Laryngeal Nerve in the Motor Responses of Vocal Cords and the Related Voice Acoustic Changes. Iran J Med Sci 2016; 41:374-81. [PMID: 27582586 PMCID: PMC4967481] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND Repeated efforts by researchers to impose voice changes by laryngeal surface electrical stimulation (SES) have come to no avail. This present pre-experimental study employed a novel method for SES application so as to evoke the motor potential of the internal superior laryngeal nerve (ISLN) and create voice changes. METHODS Thirty-two normal individuals (22 females and 10 males) participated in this study. The subjects were selected from the students of Iran University of Medical Sciences in 2014. Two monopolar active electrodes were placed on the thyrohyoid space at the location of the ISLN entrance to the larynx and 1 dispersive electrode was positioned on the back of the neck. A current with special programmed parameters was applied to stimulate the ISLN via the active electrodes and simultaneously the resultant acoustic changes were evaluated. All the means of the acoustic parameters during SES and rest periods were compared using the paired t-test. RESULTS The findings indicated significant changes (P=0.00) in most of the acoustic parameters during SES presentation compared to them at rest. The mean of fundamental frequency standard deviation (SD F0) at rest was 1.54 (SD=0.55) versus 4.15 (SD=3.00) for the SES period. The other investigated parameters comprised fundamental frequency (F0), minimum F0, jitter, shimmer, harmonic-to-noise ratio (HNR), mean intensity, and minimum intensity. CONCLUSION These findings demonstrated significant changes in most of the important acoustic features, suggesting that the stimulation of the ISLN via SES could induce motor changes in the vocal folds. The clinical applicability of the method utilized in the current study in patients with vocal fold paralysis requires further research.
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Affiliation(s)
- Sadegh Seifpanahi
- Department of Speech and Language Pathology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Farzad Izadi
- Division of Laryngology, Rasoul Akram Medical Complex, Iran University of Medical Sciences, Tehran, Iran
| | - Ali-Ashraf Jamshidi
- Department of Physical Therapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran,Correspondence: Ali-Ashraf Jamshidi, PhD; Department of Physical Therapy, School of Rehabilitation Sciences, Shahnazari St., Mirdamad Blvd., P.O. Box: 15875-4391, Tehran, Iran Tel/Fax: +98 21 22228051-2 (345)
| | - Farhad Torabinezhad
- Department of Speech and Language Pathology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Javad Sarrafzadeh
- Department of Physical Therapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Siavash Mohammadi
- Department of Speech and Language Pathology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
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Izadi F, Vaghardoost R, Derakhshandeh V, Sobouti B, Ghavami Y. Autologous Cricoid Cartilage as a Graft for Airway Reconstruction in an Emergent Technique - A Case Report. Iran J Otorhinolaryngol 2016; 28:159-62. [PMID: 27280104 PMCID: PMC4881886] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
INTRODUCTION Laryngotracheal stenosis can be caused after traumatic injuries to the neck from the subglottic larynx to the trachea. Patients with laryngotracheal stenosis often need a tracheotomy and occasionally may become tracheotomy dependent. Different procedures have been described for the management of these lesions. Management options include techniques of endoscopic dilation, laser resection, laryngo-fissure, and an innovative array of plastic reconstructions with or without the use of stents. CASE REPORT This paper presents airway reconstruction in a young patient with severe subglottic stenosis due to a blunt trauma to the neck, who was treated using particles of an autologous fractured cricoid cartilage as the source for airway augmentation. An incision was made in the anterior midline of the cricoid lamina and deepened through the scar tissue to the posterior cricoid lamina. Then two lateral incisions (right & left) were made in the cricoid lamina and fractured cartilage particles and the scar tissue were removed via these two lateral incisions. The mucosal lining at the right and left of the midline incision, after debulking, were sutured to a lateral position. Thereafter three cartilage particles were used to reconstruct the anterior cricoid lamina and augment the lumen. CONCLUSION It is worth to mention that an autologus cartilage graft can be used for certain cases with traumatic airway stenosis. Further follow up and more patients are needed to approve this method of reconstructive surgery in emergent situations.
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Affiliation(s)
- Farzad Izadi
- Department of Otorhinolaryngology, Iran University of Medical Sciences, Tehran, Iran.
| | - Reza Vaghardoost
- Department ofAesthetic and Reconstructive, Iran University of Medical Sciences, Tehran, Iran.
| | - Vita Derakhshandeh
- Department of Otorhinolaryngology, Iran University of Medical Sciences, Tehran, Iran.
| | - Behnam Sobouti
- Burn Research Center, Shahid Motahari Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Yaser Ghavami
- General Practitioners, Research Assistant, Iran University of Medical Sciences and Health Services, Tehran, Iran.,Corresponding Author: General Practitioners, Research Assistant, Iran University of Medical Sciences and Health Services, Tehran, Iran. Tel: 00982166504294, E-mail:
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Izadi F, Ghanbari H, Azizi MR, Gasembaglou S, Manteghi MJ, Ghanbari A. Inflammatory Myofibroblastic Tumor of the Larynx:A Case Report. Iran J Otorhinolaryngol 2016; 28:79-82. [PMID: 26878008 PMCID: PMC4735621] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Accepted: 02/21/2015] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Inflammatory myofibroblastic pseudotumors are initially described in the lung and various extrapulmonary sites such as the orbits, palatine tonsils, ears, gingiva, pterygomaxillary space, and periodontal tissues. These tumors rarely involve the larynx and predilection to the glottis occurs in an indolent manner. CASE REPORT This case describes a laryngeal myofibroblastic tumor in a 46-year-old woman who presented with an aggressive tumor that extended to the floor of the mouth and the base of the tongue. Extended supraglottic laryngectomy was undertaken for the patient. The diagnosis was spindle cell proliferation with dense lymphoplasma cell infiltration compatible with inflammatory myofibroblastic tumor (Inflammatory pseudotumor or plasma cell granuloma). Definitive diagnosis was achieved with immunohistochemical (IHC) staining. CONCLUSION We believe that further IHC studies are required to define the true nature of these tumors especially for those that behave in an aggressive pattern.
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Affiliation(s)
- Farzad Izadi
- Department of Otorhinolaryngology, Hazart Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
| | - Hadi Ghanbari
- ENT & HNS Research Center, Hazart Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
| | | | - Shahram Gasembaglou
- Department of Otorhinolaryngology, Hazart Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
| | | | - Azadeh Ghanbari
- College of Dentistry, Ajman University of Science and Technology, Ajman, UAE.
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21
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Izadi F, Hassannia F, Maleki M, Pousti B, Shams Koushki E, Mirhashemi S. Occult Laryngeal Foreign Body Mimicking Normal Thyroid Cartilage. Trauma Mon 2015; 20:e15441. [PMID: 26543835 PMCID: PMC4630592 DOI: 10.5812/traumamon.15441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 10/15/2013] [Revised: 11/29/2013] [Accepted: 06/18/2014] [Indexed: 11/19/2022] Open
Abstract
Introduction: Foreign body aspiration is common especially in children. The absence of history of choking does not rule out the diagnosis. Diagnosis required high index of suspicion. Case Presentation: Undiagnosed foreign body aspiration mostly occurs in bronchial airway rather than larynx and can cause severe complications. In this article, we report a silent laryngeal foreign body aspiration to show that careful history taking and accurate evaluation of radiography are important factors for diagnosis. Conclusions: The single most significant factor leading to detect of tracheobronchial foreign body aspiration is a high index of suspicion; this case highlights the possibility of a foreign body in the airway in patients who presents with a recent onset of chronic respiratory complaints.
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Affiliation(s)
- Farzad Izadi
- Department of Otolaryngology and Head and Neck Surgery, Hazrate Rasoul Hospital, Iran University of Medical Sciences, Tehran, IR Iran
| | - Fatemeh Hassannia
- Department of Otolaryngology and Head and Neck Surgery, Hazrate Rasoul Hospital, Iran University of Medical Sciences, Tehran, IR Iran
- Corresponding author: Fatemeh Hassannia, Department of Otolaryngology and Head and Neck Surgery, Hazrate Rasoul Hospital, Iran University of Medical Sciences, Tehran, IR Iran. Tel/Fax: +98-2166511011, E-mail:
| | - Mojtaba Maleki
- Department of Otolaryngology and Head and Neck Surgery, Firouzgar Hospital, Iran University of Medical Sciences, Tehran, IR Iran
| | - Behzad Pousti
- Department of Otolaryngology and Head and Neck Surgery, Hazrate Rasoul Hospital, Iran University of Medical Sciences, Tehran, IR Iran
| | - Ehsan Shams Koushki
- Department of Otolaryngology and Head and Neck Surgery, Hazrate Rasoul Hospital, Iran University of Medical Sciences, Tehran, IR Iran
| | - Sedighe Mirhashemi
- Faculty of Trauma Research Center, Baqiyatallah University of Medical Sciences, Tehran, IR Iran
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Izadi F, Ahmadi A, Zobairy H, Bakhti S, Hirbod H, Safdarian M. Fraser syndrome with laryngeal webs: Report of two cases and a review of the literature. Int J Pediatr Otorhinolaryngol 2015; 79:1959-62. [PMID: 26384833 DOI: 10.1016/j.ijporl.2015.08.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 08/28/2015] [Accepted: 08/29/2015] [Indexed: 11/30/2022]
Abstract
Fraser syndrome is a rare genetic disorder characterized by cryptophthalmos, syndactyly and laryngeal atresia. Although laryngeal webs occur uncommonly, they are the main cause of death in the first week of life in these patients. In this paper, we report two cases of Fraser syndrome with laryngeal webs. One of them was a twelve-year-old girl, primarily diagnosed with a supraglottic laryngeal web. In the course of treatment, a second web was also identified at the level of vocal cords, which is to our knowledge the first case of Fraser syndrome with two laryngeal webs in different levels.
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Affiliation(s)
- Farzad Izadi
- Department of Otolaryngology, Head and Neck Surgery, Iran University of Medical Sciences, Tehran, Iran.
| | - Aslan Ahmadi
- Department of Otolaryngology, Head and Neck Surgery, Iran University of Medical Sciences, Tehran, Iran.
| | - Hosna Zobairy
- Department of Otolaryngology, Head and Neck Surgery, Iran University of Medical Sciences, Tehran, Iran
| | - Sepideh Bakhti
- Department of Otolaryngology, Head and Neck Surgery, Iran University of Medical Sciences, Tehran, Iran
| | - Hengameh Hirbod
- Department of Otolaryngology, Head and Neck Surgery, Iran University of Medical Sciences, Tehran, Iran
| | - Mahdi Safdarian
- Department of Otolaryngology, Head and Neck Surgery, Iran University of Medical Sciences, Tehran, Iran.
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Izadi F, Ghanbari H, Zahedi S, Pousti B, Maleki Delarestaghi M, Salehi A. An Island Flap Technique for Laryngeal Intracordal Mucous Retention Cysts. Iran J Otorhinolaryngol 2015; 27:337-42. [PMID: 26568936 PMCID: PMC4639685] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
INTRODUCTION Mucous retention cysts are a subtype of intracordal vocal cysts that may occur spontaneously or may be associated with poor vocal hygiene, and which require optimal treatment. The objective of this study was to present a new laser-assisted microsurgery technique for treating intracordal mucous retention cysts and to describe the final outcomes. MATERIALS AND METHODS In this prospective study, we assessed the pre-operative and post-operative acoustic analysis, maximum phonation time (MPT), and voice handicap index (VHI) of four patients with a diagnosis of mucous retention cyst. The island flap technique was applied to all patients without any complications. In this procedure, we favored the super-pulse mode using a 2-W power CO2 laser to remove the medial wall of the cyst, before clearing away the lateral wall margins of the cyst using repeat-pulse mode and a 2-W power CO2 laser. Indeed, we maintained the underlying epithelium and lamina propria, including the island flap attached to the vocal ligament. RESULTS There was a statistically significant improvement in the MPT (pre-op,11.05 s; post-op,15.85 s; P=0.002) and the VHI (pre-operative, 72/120; post-operative,27/120; P=0.001) in all patients. Moreover, jitter and shimmer were refined after surgery, but there was no statistically significant relationship between pre-operative and post-operative data (P=0.071) (P=0.622). In the follow-up period (median, 150 days), there was no report of recurrence or mucosal stiffness. CONCLUSION The island flap procedure in association with CO2 laser microsurgery appears to be a safe and effective treatment option for intracordal mucous retention cysts, but needs further investigation to allow comparison with other methods.
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Affiliation(s)
- Farzad Izadi
- Department of Otorhinolaryngology, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
| | - Hadi Ghanbari
- Department of Otorhinolaryngology, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.,Corresponding Author Department of Otorhinolaryngology and ENT&HNS Research Center, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. Tel: +98 21 66504294, Fax: 98 21 66511011, E–Mail:
| | - Sahar Zahedi
- Department of Otorhinolaryngology, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
| | - Behzad Pousti
- Department of Otorhinolaryngology, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
| | - Mojtaba Maleki Delarestaghi
- Department of Otorhinolaryngology, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
| | - Abolfazl Salehi
- Department of Speech Therapy, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
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Izadi F, Parvas E, Derakhshandeh V. Lymphoma of larynx presented with hoarseness: Case report. Med J Islam Repub Iran 2014; 28:21. [PMID: 25250266 PMCID: PMC4153532] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Accepted: 07/06/2013] [Indexed: 12/03/2022] Open
Abstract
Primary non-Hodgkin lymphoma of the larynx is rare, accounting for less than 1% of all laryngeal neoplasms. Fewer than 100 cases have been reported in the literature and to our knowledge this may be the first reported case of laryngeal non Hodgkin lymphoma presented with hoarseness, aortic aneurysm, hepatitis B and skin rashes.
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Affiliation(s)
- Farzad Izadi
- 1. MD., Associate Professor (AP) at Iran University Of Medical Science, Fellowship of Laryngology, Department of Otolaryngology, Head and neck surgery, University of Minnesota School of Medicine, U.S.A.
| | - Ehsan Parvas
- 2. MD., General Practictioner , Iran University Of Medical Science, Tehran, Iran.
| | - Vita Derakhshandeh
- 3. MD., Fellowship of Laryngology, Department of Otolaryngology, Head and Neck Surgery, Iran University Of Medical Science, Tehran, Iran.
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Khoddami SM, Nakhostin Ansari N, Izadi F, Talebian Moghadam S. The assessment methods of laryngeal muscle activity in muscle tension dysphonia: a review. ScientificWorldJournal 2013; 2013:507397. [PMID: 24319372 PMCID: PMC3834625 DOI: 10.1155/2013/507397] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Accepted: 09/19/2013] [Indexed: 02/08/2023] Open
Abstract
The purpose of this paper is to review the methods used for the assessment of muscular tension dysphonia (MTD). The MTD is a functional voice disorder associated with abnormal laryngeal muscle activity. Various assessment methods are available in the literature to evaluate the laryngeal hyperfunction. The case history, laryngoscopy, and palpation are clinical methods for the assessment of patients with MTD. Radiography and surface electromyography (EMG) are objective methods to provide physiological information about MTD. Recent studies show that surface EMG can be an effective tool for assessing muscular tension in MTD.
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Affiliation(s)
- Seyyedeh Maryam Khoddami
- 1Department of Speech Therapy, School of Rehabilitation, Tehran University of Medical Sciences, Enghelab Avenue, Pitch-e-shemiran, Tehran 11489, Iran
- *Seyyedeh Maryam Khoddami:
| | - Noureddin Nakhostin Ansari
- 2Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
| | - Farzad Izadi
- 3Department of Ear, Nose, Throat, Head and Neck Research Center, Hazrat-e-Rasoul Hospital, Tehran, Iran
| | - Saeed Talebian Moghadam
- 2Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
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Izadi F, Mahjoubi F, Farhadi M, Tavakoli MM, Samanian S. A novel missense mutation in exon 7 of the ECM1 gene in an Iranian lipoid proteinosis patient. Genet Mol Res 2012; 11:3955-60. [PMID: 23212332 DOI: 10.4238/2012.november.14.2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Lipoid proteinosis (LP) is a rare autosomal recessive disorder. Classical clinical features include warty skin infiltration, papules on the eyelids, skin scarring, as well as extracutaneous abnormalities such as hoarseness of the voice, epilepsy, and neuropsychiatric abnormalities. A defect in the ECM1 gene is responsible for this disease. A 21-year-old female patient from consanguineous parents (first cousins) was referred to our clinic with many symptoms of LP, such as hoarse voice from infancy, diffuse acneiform scars on her face, and hyperkeratosis on her knees and elbows. The entire ECM1 gene was screened using PCR and sequencing. A novel missense mutation was found in exon 7 of this patient. We report a novel missense mutation in exon 7 of the ECM1 gene found in an Iranian LP patient that causes a C269Y amino acid exchange.
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Affiliation(s)
- F Izadi
- ENT-Head and Neck Research Center and Department, Hazrat Rasoul Akram Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Izadi F, Salehi A. Comparison between palpatory findings of the hyoid position and their acoustic, videostroboscopic, and perceptual attributes in patients with muscle tension dysphonia (with and without organic lesions). J Voice 2012; 27:78-83. [PMID: 23123201 DOI: 10.1016/j.jvoice.2012.06.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2012] [Accepted: 06/19/2012] [Indexed: 10/27/2022]
Abstract
SUMMARY The direction in which the hyoid is pulled may change as a result of muscle tension dysphonia (MTD). The disposition usually occurs owing to paralaryngeal muscular imbalance (decompensation), which can create laryngeal dysfunction and consequently deteriorating the voice quality. This study aimed at reporting on a comparison between palpatory findings of hyoid position and their acoustic and perceptual and stroboscopic attributes among patients with MTD. DESIGN Cross-sectional random triple-blinded study. METHOD Palpatory, acoustic, audioperceptual, and stroboscopic findings of 39 patients with MTD were analyzed descriptively and using independent sample t test. RESULTS Dominant perceptual vocal characteristic of patients with pulled-up hyoid position was rough and the degrees of jitter and shimmer were higher in patients with pulled-up hyoid position than in patients with pulled-down hyoid position (jitter, P=0.019; shimmer, P=0.004), whereas signal-to-noise (S/N) ratio was lower in patients with pulled-up hyoid position than in pulled-down hyoid patients, but not significantly (S/N ratio, P=0.56). The dominant perceptual characteristic of patients with pulled-up hyoid position was rough voice, whereas that for pulled-down hyoid patients was strained voice. On the other hand, the dominant observable pattern in patients with pulled-up hyoid was MTD type II (lateral constriction), whereas that in patients with pulled-down hyoid was MTD type III (moderate anteroposterior constriction). CONCLUSION There is a general congruence between the hyoid pulled direction and its perceptual, acoustic, and videostroboscopic findings in patients with MTD.
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Affiliation(s)
- Farzad Izadi
- Department of Speech and Language, Ear, Nose, Throat, Head and Neck Research Center, Hazrat-e-Rasoul Hospital, Tehran, Iran
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Mohammadi S, Ghourchian S, Izadi F, Daneshi A, Ahmadi A. Porous high-density polyethylene in facial reconstruction and revision rhinoplasty: a prospective cohort study. Head Face Med 2012; 8:17. [PMID: 22642753 PMCID: PMC3441356 DOI: 10.1186/1746-160x-8-17] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2012] [Accepted: 04/18/2012] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Initial methods which used human tissues as reconstruction materials caused different problems including rejection, limited shapes and infection. In 1970s, PHDPE (Medpor®) was introduced by its exclusive advantageous including no donor site morbidity, easily shaped and the minimal foreign body reaction. Hereby, we report our experience of using Medpor® in facial reconstruction especially in frontal reconstruction and orbital rim with a large sample size. METHODS This study was a prospective cohort study. Surgical techniques included using Medpor® in reconstruction of lamina papiracea (LP) (15 patients), frontal bone (15 patients), orbital rim (18 patients) and open rhinoplasty (8 patients). All interventions on LP were performed by endoscopic procedures. All frontal operations were carried out by bicoronal incision. In orbital defects, we used subciliary incision. RESULTS From all 56 patients, 1 case had primitive neuroectodermal tumor (PNET) of maxillary sinus. In that case, reconstruction of inferior orbital rim was not successful and extrusion was occurred after radiotherapy. In rhinoplasty and other experiences no extrusion or infection were detected within the next 1 to 3 years of follow up. There were not any palpable and visible irregularities under the skin in our experiences. CONCLUSIONS In this study the patients did not experience any complications during the follow up periods and the satisfaction was remarkable. Gathering these data gives rise to future review studies which can provide more organized evidences for replacing classic reconstructive methods by the presented material.
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Affiliation(s)
- Shabahang Mohammadi
- Ear Nose Throat (ENT) and Head and Neck Surgery Research Center, Hazrat Rasoul Akram Hospital, Tehran University of Medical Sciences, Sattarkhan st, 1445613131, Tehran, Iran
| | - Shadi Ghourchian
- Students’ Scientific Research Center of Tehran university of medical sciences (SSRC), Tehran University of medical sciences, Tehran, Iran
| | - Farzad Izadi
- Ear Nose Throat (ENT) and Head and Neck Surgery Research Center, Hazrat Rasoul Akram Hospital, Tehran University of Medical Sciences, Sattarkhan st, 1445613131, Tehran, Iran
| | - Ahmad Daneshi
- Ear Nose Throat (ENT) and Head and Neck Surgery Research Center, Hazrat Rasoul Akram Hospital, Tehran University of Medical Sciences, Sattarkhan st, 1445613131, Tehran, Iran
| | - Aslan Ahmadi
- Ear Nose Throat (ENT) and Head and Neck Surgery Research Center, Hazrat Rasoul Akram Hospital, Tehran University of Medical Sciences, Sattarkhan st, 1445613131, Tehran, Iran
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Izadi F, Hamkar R, Ghanbari H, Abdolmotallebi F, Jahandideh H. The role of Human papilloma virus (HPV) genotyping in recurrent respiratory papillomatosis in Rasoul Akram Hospital. Med J Islam Repub Iran 2012; 26:90-3. [PMID: 23483670 PMCID: PMC3587898] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Revised: 01/11/2012] [Accepted: 01/16/2012] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND The most common laryngeal mass in children is recurrent respiratory papillomatosis (RRP). Studies have attempted to correlate viral typing and its aggressiveness. METHOD 29 patients with histologically confirmed RRP enrolled in adjuvant therapies. Patients underwent several surgical interventions. RESULTS HPV genotyping demonstrated 45% HPV-6 and 55% HPV-11. The mean age at the first surgical intervention was 52.39 months (SD=102.28) (range from 4 months to 426 months). The mean number of surgical intervention was 10.39 (SD=7.76) (range from 2 to 30). The mean time of surgical intervals was 4.63 months (SD=4.02) (range from 2 to 24 months). In fourteen patients (48%) tracheotomy was done. All patients who had tracheotomy received alpha-interferon. One of our cases was a male who had pulmonary extension with HPV-6. CONCLUSION A review of patients with RRP was regarding to HPV genotyping and need for adjuvant therapy and tracheostomy. Mean number of surgical procedure was 10/40 and nearly fourteen patients (48%) need to tracheotomy. The clinical differences between HPV6 and HPV11 disease may not be accurately predictable. Patients with less age and with HPV-11 seemed to have more severe problems, but these differences were not statistically significant which needs much more investigations for reasonable starting point of evaluation for these differences.
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Affiliation(s)
- Farzad Izadi
- MD, Associated professor of Otolaryngolgy-Head and Neck Surgery, Department of Otolaryngology, ENT.HNS research center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Rasool Hamkar
- Associated professor, virologist, Department of Virology, Tehran University of Medical Sciences, Tehran, Iran,
| | - Hadi Ghanbari
- MD. Otolaryngologist–Head and Neck Surgeon, Department of Otolaryngology, ENT.HNS research center, Tehran University of Medical Sciences. Rasoul Akram Hospital/Niayesh St. Sattarkhan Avenue, Tehran, Iran
| | - Fereshteh Abdolmotallebi
- MD. ENT resident, Department of Otolaryngology, ENT.HNS research center, Tehran University of Medical Sciences
| | - Hesam Jahandideh
- MD. ENT resident, Department of Otolaryngology, ENT.HNS research center, Tehran University of Medical Sciences, Tehran, Iran.
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Izadi F, Ahmadi A, Ghourchian S, Daneshi A, Memari F, Khadivi E, Mohammadi S. Detection of helicobacter pylori in benign laryngeal lesions by polymerase chain reaction: a cross sectional study. Infect Agent Cancer 2012; 7:10. [PMID: 22515206 PMCID: PMC3405417 DOI: 10.1186/1750-9378-7-10] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [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: 09/28/2011] [Accepted: 04/19/2012] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Although Helicobacter Pylori (HP) was detected in some cases of chronic laryngitis, the results were not confirmed by polymerase chain reaction (PCR). By this time, it has not been found in laryngeal lesions by in house PCR, the most sensitive method for detecting the genome tracks. Regarding the previous results and also few numbers of studies about the presence of HP in benign laryngeal lesions, specifically by PCR, we aimed to investigate the presence of HP in benign laryngeal lesions by in-house PCR. METHODS The samples were taken from 55 patients with benign laryngeal lesions and frozen in -20°C. One milliliter (ml) of lysis buffer was added to 100 mg (mg) of each sample and the tube was placed in 56°C overnight. Then DNA extraction was carried out. RESULTS To find HP DNA, in-house PCR was performed that revealed 5 positive results among 55 patients with benign laryngeal lesions. Of them, 3 were polyp, 1 was nodule and 1 was papilloma. CONCLUSION Although the number of positive results was not a lot in this study, it was in contrast with previous studies which could not find any HP tracks in benign laryngeal lesions by other methods. More studies about the prevalence of HP in benign laryngeal lesions improve judging about the effect of this infection on benign laryngeal lesions.
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Affiliation(s)
- Farzad Izadi
- Head and Neck Research Center, Hazrat Rasoul Akram Hospital, Tehran University of Medical Sciences, Tehran, Iran.
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Izadi F, Ritland C, Cheng KM. Genetic diversity of the major histocompatibility complex region in commercial and noncommercial chicken flocks using the LEI0258 microsatellite marker. Poult Sci 2012; 90:2711-7. [PMID: 22080008 DOI: 10.3382/ps.2011-01721] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Microsatellite marker LEI0258 was used as an indicator to examine the variability of the major histocompatibility complex (MHC) region in 2 commercial layer flocks, 1 experimental layer cross, and 5 noncommercial flocks (used for free-run and free-range meat and egg production). We hypothesized that the populations from noncommercial sources may have more diversity in MHC genes than that in the commercial-source populations. Two related parameters, heterozygosity and the number of alleles harbored by a population, were used to assess the genetic variability. The different combinations of the 22 alleles created 66 genotypes in the 8 chicken populations that were studied. The noncommercial populations, except for the Silkies (SK), harbored more alleles than those in the 2 commercial populations, Lohmann Brown and Lohmann White. The observed heterozygosity of the MHC region was high in all of the populations, except for SK. Considering the 2 parameters we have examined, we can generalize that the intensively selected commercial egg-layer varieties seem to have less genetic variability in their MHC regions compared with that of the noncommercial flocks, which are less intensively selected. The LEI0258 variants can be used as markers to detect most of the MHC haplotypes, but in the different populations the same allele size may not always be associated with the same serologically defined haplotype. The information obtained from this study will be useful for genetic resource conservation and the development of breeding stocks that are suitable for free-range production.
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Affiliation(s)
- F Izadi
- Avian Research Centre, University of British Columbia, Canada
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Izadi F, Mohseni R, Daneshi A, Sandughdar N. Determination of fundamental frequency and voice intensity in Iranian men and women aged between 18 and 45 years. J Voice 2011; 26:336-40. [PMID: 21889298 DOI: 10.1016/j.jvoice.2011.05.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2010] [Accepted: 05/17/2011] [Indexed: 10/17/2022]
Abstract
OBJECTIVES Acoustic measurements have become an essential aspect of voice assessment during the last few decades, and studies have established that normative data is necessary for acoustic analysis. In this study, two aspects of voice are reviewed. These two factors are fundamental frequency and intensity. This study was designed to establish the normal acoustic analysis parameters in normal Iranian adults. METHODS In this cross-sectional study, 200 healthy randomly selected subjects (100 men and 100 women) were assessed. Data collection was carried out using the Studio Speech software and Laryngograph processor (Laryngograph Ltd, London, UK), type: PCLX at the Larynx and Voice Disorders Clinic of Rasoul-e-Akram Hospital under comfortable phonation. RESULTS The value of fundamental frequency in reading was greater for women (170-240 Hz) than for men (107-140 Hz). Also, the value of intensity was greater for women (73.54-84.99 dB) than for men (72.40-86.03 dB). CONCLUSION The present study developed the normal data for fundamental frequency and intensity in Iranian speakers aged between 18 and 45 years. We concluded, fundamental frequency has significant differences between men and women, but intensity has no significant difference between them.
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Affiliation(s)
- Farzad Izadi
- Department of Speech and Language, Ear, Nose, Throat, Head and Neck Research Center, Hazrat-e-Rasoul Hospital, Tehran, Iran
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Pousti SB, Izadi F, Nikpour N, Shirali A. How Plastic and Endoscopic Assisted Surgery Can Help Foreign Body Removal? Indian J Otolaryngol Head Neck Surg 2011; 72:513-514. [PMID: 33088784 DOI: 10.1007/s12070-011-0177-y] [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] [Received: 06/16/2008] [Accepted: 08/08/2008] [Indexed: 11/29/2022] Open
Abstract
In this study we report a case with foreign body in the infratemporal fossa. The anatomic position of this region and the presence of important neurovascular structures make this region a sophisticated one. Commonly used open procedures can have morbidity of neurovascular system. To prevent probable complications like facial nerve injury in this case which was the most important factor for us, we decided to remove the foreign body under endoscopic guide.
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Affiliation(s)
- Seyed Behzad Pousti
- E.N.T Department & Ear, Nose, Throat, and Head & Neck Surgery Research Center, Hazrat Rasoul - Akram Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Farzad Izadi
- E.N.T Department & Ear, Nose, Throat, and Head & Neck Surgery Research Center, Hazrat Rasoul - Akram Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Neda Nikpour
- E.N.T Department & Ear, Nose, Throat, and Head & Neck Surgery Research Center, Hazrat Rasoul - Akram Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Shirali
- E.N.T Department & Ear, Nose, Throat, and Head & Neck Surgery Research Center, Hazrat Rasoul - Akram Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Izadi F, Delarestaghi MM, Memari F, Mohseni R, Pousti B, Mir P. The butterfly procedure: a new technique and review of the literature for treating anterior laryngeal webs. J Voice 2009; 24:742-9. [PMID: 19850447 DOI: 10.1016/j.jvoice.2009.03.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2009] [Accepted: 03/10/2009] [Indexed: 11/27/2022]
Abstract
Congenital laryngeal webs, subglottic stenosis, and laryngeal atresia result from various degrees of failure of airway recanalization as a spectrum. The symptoms also range from asymptomatic to dysphonia and severe airway obstruction. There are a number of methods for management of symptomatic patients. In this article, we discuss a new procedure that was used in the management of two anterior laryngeal web patients with relatively acceptable results.
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Affiliation(s)
- Farzad Izadi
- Otolaryngology Head and Neck Surgery, Ear, Nose, Throat, Head and Neck Research Center, Hazrat Rasoul Akram Hospital, Tehran, Iran
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Izadi F, Azizi MR, Ghanbari H, Kadivar M, Pousti B. Angiomyxoma of the larynx: case report of a rare tumor. Ear Nose Throat J 2009; 88:E11. [PMID: 19623517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
Laryngeal spindle cell neoplasms are uncommon tumors, frequently misdiagnosed as reactive lesions or mesenchymal malignancies. One of the rare mesenchymal tumors of the larynx is myxoid spindle cell tumor (angiomyxoma), a benign proliferative lesion. It is considered the laryngeal counterpart of the aggressive angiomyxoma of the pelvis and perineum. Although benign, angiomyxomas have a propensity for local recurrence due to their tendency to infiltrate surrounding tissues. They commonly appear encapsulated, but simple enucleation does not provide adequate treatment; excision should include a margin of normal tissue around the tumor. We describe a case of laryngeal angiomyxoma in a 40-year-old man that, to the best of our knowledge, is only the second such case reported in the literature. The tumor in our case showed no histologic evidence of aggressive behavior, but because of the potential for local recurrence, close follow-up was warranted.
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Affiliation(s)
- Farzad Izadi
- Department of Otolaryngology and ENT Research Center, Rasoul Akram Hospital, Iran University of Medical Sciences, Sattarkhan Ave., Tehran, Iran
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Janghorbani M, Rezvanian H, Kachooei A, Ghorbani A, Chitsaz A, Izadi F, Amini M. Peripheral neuropathy in type 2 diabetes mellitus in Isfahan, Iran: prevalence and risk factors. Acta Neurol Scand 2006; 114:384-91. [PMID: 17083338 DOI: 10.1111/j.1600-0404.2006.00716.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [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: 11/28/2022]
Abstract
BACKGROUND To estimate the prevalence and risk factors of peripheral neuropathy (PN) in people with type 2 diabetes mellitus. METHODS A total of 810 patients with type 2 diabetes (289 men and 521 women) from Isfahan Endocrinology and Metabolism Research Centre outpatient clinics, Iran, were examined. Part of examination included an assessment of neurological function including neuropathic symptoms and physical signs and nerve conduction velocity. RESULTS The prevalence of PN was 75.1% (95% confidence interval 72.1, 78.0). PN was associated with age, proteinuria, and duration of diabetes, insulin-treatment, and presence of any retinopathy and ischaemic heart disease (IHD). The age-adjusted prevalence rate of PN was 78% higher among patients with IHD, 64% higher among patients with any retinopathy, 66% higher among insulin-treated type 2 diabetes, and it was greater with duration of diabetes. Using a stepwise binary logistic regression model, age, duration of diabetes and proteinuria were significant independent predictors of PN. CONCLUSION Peripheral neuropathy is a common complication in this population of Iranian type 2 diabetic patients. It increases with age, duration of diabetes and proteinuria.
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Affiliation(s)
- M Janghorbani
- Department of Epidemiology and Biostatistics, Isfahan University of Medical Sciences and Health Services, Isfahan, Iran.
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