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Exclusive endoscopic transcanal approach to lateral skull base lesions:Institutional experience of 3 cases

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Journal of Otology 2021年第1期16卷 55-60页

作者： Sidharth Pradhan Preetam Chappity Anindya Nayak Pradeep Pradhan pradipta k.parida All India Institute of Medical Sciences Bhubaneswar Department of Otorhinolaryngology and Head&Neck Surgery1 st floorAIIMSBhubaneswarSijuaBhubaneswarOdisha751019India

Introduction:Majority of petrous bone and lateral skull base pathologies are benign in *** complex anatomy usually warrants an extensive approach with associated *** summary:Two cases of petrous bone cholesteatoma(1 congenital cholesteatoma with facial palsy and 1 acquired cholesteatoma)and a case of glomus tympanicum were treated with exclusive endoscopic transcanal *** cases of petrous cholesteatoma were addressed with trans-promontorial and infra-cochlear *** mean operative time was approximately 140 *** CSF otorrhoea was noticed in the post-operative *** average period of hospital stay was 3.7 ***:In the subset of cases with limited benign disease an endoscopic trans-canal approach is a better alternative to an external *** decreases operative time,blood loss,chance of meningitis,morbidity and hospital *** lack of depth perception is a major hurdle which can be come over by experience in endoscopic middle ear *** approach can create direct access to cochlea/petrous apex/internal auditory canal(IAC)/Supra-geniculate ganglion region.

关键词： Transcanal endoscopic approach Petrous cholesteatoma Glomus tympanicum Lateral skull base

Primary endoscopic stapedotomy using 3 mm nasal endoscope:Audiologic and clinical outcomes

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Journal of Otology 2020年第4期15卷 133-137页

作者： Pradeep Pradhan Chappity Preetam pradipta kumar parida Department of ENT and Head Neck Surgery All India Institute of Medical SciencesBhubaneswarOdisha751019India

Objective:To report the use of a 3 mm rigid nasal endoscope in primary endoscopic stapedotomy and clinical and audiological *** and methods:Thirty patients diagnosed with primary otosclerosis underwent endoscopic stapedotomy that was performed using a 3 mm nasal endoscope(karl Storz).At 6 months follow-up,the patients were evaluated for intraoperative findings,postoperative hearing outcomes and ***:Canaloplasty was performed in 2(6.66%)patients,and no curettage of the canal wall was required in 12(40%)*** of the chorda tympani nerve was conducted in 11(36.66%)*** average duration of surgery was 36 min(range 31e65 min).The air-bone gap(ABG)was 35 dB(range 24e50 dB)preoperatively and 14.63 dB(range 9e20 dB)postoperatively(p?0.00).At 6 months follow-up,<20 dB ABG was achieved in 93.33%of the *** major intraoperative/postoperative complications were ***:A 3 mm rigid nasal endoscope can be effectively used in stapedotomy to obtain adequate audiological *** can be considered as a better alternative to the standard microscope or 4 mm endoscope in preserving the posterior canal wall and chorda tympani nerve while minimizing operative time without causing significant complications.

关键词： Endoscope Otosclerosis Outcomes

Comparing accuracy of cochlear measurements on magnetic resonance imaging and computed tomography:A step towards radiation-free cochlear implantation

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中华耳科学杂志:英文版 2023年第4期18卷 208-213页

作者： Anurita Swarup Vinusree karakkandy Preetam Chappity Suprava Naik Sanjay kumar Behera pradipta kumar parida Mohnish Grover Gaurav Gupta Prajna Paramita Giri Saurav Sarkar Pradeep Pradhan Dillip kumar Samal Aswathi kallyadan Veetil Asutosh Adhikari Saurav Nayak Department of ENT and HNS All India Institute of Medical Sciences(AIIMS)BhubaneswarOdishaIndia Department of Radiodiagnosis All India Institute of Medical Sciences(AIIMS)BhubaneswarOdishaIndia Department of Community and Family Medicine All India Institute of Medical Sciences(AIIMS)BhubaneswarOdishaIndia Department of Biochemistry All India Institute of Medical Sciences(AIIMS)BhubaneswarOdishaIndia Department of ENT Sawai Man Singh Medical CollegeJaipurRajasthanIndia Department of ENT Sardar Patel Medical CollegeBikanerRajasthanIndia

Objective:Computed Tomography(CT)and Magnetic Resonance Imaging(MRI)are commonly employed in pre-operative evaluation for cochlear implant ***,with a decrease in the age of implantation,even minor radiation exposure can cause detrimental effects on children over their *** current study compares different cochlear measurements from CT and MRI scans and evaluates the feasibility of using only an MRI scan for radiological evaluation before cochlear ***:A longitudinal observational study was conducted on 94 ears/47 children,employing CT and MRI *** CT and MRI scan measurements include,A value,B value,Cochlear duct length(CDL),twoturn cochlear length,alpha and beta angles to look for cochlear *** nerve diameter was measured using *** values were ***:The mean difference between measurements from CT and MRI scans for A value,B value,CDL,and two-turn cochlear length values was 0.567±0.413 mm,0.406±0.368 mm,2.365±1.675 mm,and 2.063±1.477 mm respectively without any significant *** alpha and beta angle measures were comparable,with no statistically significant ***:The study suggests that MRI scans can be the only radiological investigation needed with no radiation risk and reduces the cost of cochlear implant program in the paediatric *** is no significant difference between the measurements obtained from CT and MRI ***,observed discrepancies in cochlear measurements across different populations require regionally or race-specific standardized values to ensure accurate diagnosis and precision in cochlear implant *** aspect must be addressed to ensure positive outcomes for patients.

关键词： Cochlear implant Hearing loss Cochlea anatomy Radiology

Submental island flap reconstruction for carcinoma of the oral cavity: Experience in 30 cases

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2019年第2期5卷 65-70页

作者： Pradeep Pradhan Swagatika Samal Dillip kumar Samal Chappity Preetam pradipta kumar parida Department of Otorhinolaryngology All India Institute of Medical SciencesBhubaneswarOdisha751019India Department of Pathology All India Institute of Medical SciencesBhubaneswarOdisha751019India

Objective:The submental flap can be utilized for soft tissue reconstruction in oral cavity malignancies because due to its close approximation to the surgical site,fewer donor site morbidity and the cost effectiveness of the ***:A total of 30 patients with squamous cell carcinoma of the oral cavity were included in the study from July 2012 to August 2015 in a tertiary care referral *** with clinical staging Ⅰ/Ⅱ/Ⅲ (T1/T2/T3,N0) oral malignancy were included in the *** with nodal metastasis irrespective of the stage of disease and patients with chronic medical illness/revision cases were excluded from the *** island flap was utilized for the reconstruction of the soft tissue defect in each *** were followed at monthly interval till 6 months in the postoperative ***:The buccal mucosa (12 patients),tongue (10 patients) and floor of mouth (8 patients) were the subsites in the oral *** and complete skin necrosis was found in 4 and 2 patients *** chemoradiation was required in 5 *** of the patients had loco regional recurrence till 6 months of ***:The submental island flap is considered to be the reliable option for the soft tissue reconstruction in oral cancer because of dependent vascular pedicle,less donor site morbidity and the lower cost compared to the free flaps,often preferred in patients with a lower socioeconomic condition.

关键词： Oral malignancies Submental island flap Surgical technique Outcome

Surgical management of extracranial nerve sheath tumours in a tertiary care center

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2019年第2期5卷 76-81页

作者： Pradeep Pradhan Chappity Preetam Swagatika Samal Dillip kumar Samal pradipta kumar parida Department of ENT and Head Neck Surgery All India Institute of Medical SciencesBhubaneswarOdisha751019India

Objective:Excision of the nerve sheath tumours of head and neck is always a challenge to the surgeon because of their close proximity of the neurovascular ***:It is a retrospective study contained 13 consecutive patients of nerve sheath tumours involving the head and neck from March 2013 to February 2017 in the department of Otorhinolaryngology and Head Neck Surgery in a tertiary care referral hospital The retrospective clinical data,diagnostic procedures,surgical approaches and their complications are analyzed after 12 months of ***:Total 13 patients,7 were females and 6 were *** neck swelling was the most common presentation found in 6 and the most common site of origin was the vagus nerve in the parapharyngeal space (6 patients).Transcervical excision of the tumour was performed in 7 *** needed combined surgical approach for the excision of the *** injury was detected in 3 patients,and one patient had recurrent disease during the follow-up ***:Excision of the nerve sheath tumours of head and neck is always a challenge to the surgeon because of their close proximity of the neurovascular *** the transcervical approach is commonly practiced for the majority of the tumours,combined approaches can be effectively applied for extensive nerve sheath tumours with the satisfactory clinical outcome.

关键词： Nerve sheath tumours Surgical management Outcome