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Deep, Nicholas L.

https://orcid.org/0000-0003-2445-7454

Mayo Clinic

Mayo Clinic in Arizona

Citations 37

Evaluating narrative operative reports for endoscopic sinus surgery in a residency training program
Wheeler, Shannon , Miglani, Amar , Deep, Nicholas L. , Girardo, Marlene , Hinni, Michael L., Wheeler, Shannon C , Hinni, Michael, Lal, Devyani

Laryngoscope Investigative Otolaryngology | April 23, 2019 | Volume: 4 | Issue: 3 | Pages: 279-284

10.1002/lio2.264 Get It

ObjectiveThe narrative operative report (NR) bears testimony to critical elements of patient care. Residents’ NRs also provide insights into their comprehension of the procedure. NR documentation is an informal element of surgical residency training but data regarding quality of such training are scant. We aim to evaluate the NR within a residency training program.MethodsThe quality of NRs for endoscopic sinus surgery (ESS) was evaluated through a retrospective analysis of 90 NRs for ESS. Thirty‐four elements that the attending surgeon regards as “critical” variables, or quality indicators (QIs), that should be documented, were studied to evaluate quality. A “performance metric (PM),” defined as the average percent of QIs dictated/total word count, was determined. Subgroup analysis by the level of training was additionally performed.ResultsSurgical indications, procedural steps, and immediate postoperative findings were accurately documented in 71%, 84%, and 82% of patients, respectively. The attending surgeon had the highest proportion of included key elements (89% ± 6.2%) followed by junior residents (87% ± 5.7%) and then senior residents (80% ± 14%) (P = .008). The attending surgeon also demonstrated the highest PM, followed by senior and then junior residents (P < .0001).ConclusionsThe quality of NRs was found to be high overall, but not “perfect” for either the attending or trainee surgeon. The PM among residents was expectedly lower than the attending surgeon. We propose that a synoptic reporting system that ensures inclusion of key elements may be helpful in training residents (and attendings) in creating comprehensive and efficient NRs.Level of Evidence3
Subpectoral implantation of the hypoglossal nerve stimulator: An effective technical modification
Deep, Nicholas L. , Hines, John Peyton, Parish, James M., Hinni, Michael L., Bansberg, Stephen F.

The Laryngoscope | December 27, 2018 | Volume: 129 | Issue: 10 | Pages: 2420-2423

10.1002/lary.27647 Get It

Upper airway stimulation is now a well‐established treatment option for selected patients with obstructive sleep apnea. The implanted pulse generator of this system activates the hypoglossal nerve and is routinely placed in a subcutaneous pocket overlying the pectoralis muscle. This case report describes a patient with a history of bilateral mastectomy and radiation for breast cancer who required explantation due to device exposure and infection. The patient was successfully reimplanted by placing the implantable pulse generator deep to the pectoralis major muscle. Clinical circumstances involving the chest wall may warrant subpectoral placement of the implanted pulse generator.Laryngoscope, 129:2420–2423, 2019
Cochlear Implantation: An Overview
Deep, Nicholas L. , Dowling, Eric M. , Jethanamest, Daniel , Carlson, Matthew L. , Dowling, Eric

Journal of Neurological Surgery Part B: Skull Base | September 6, 2018 | Volume: 80 | Issue: 02 | Pages: 169-177

10.1055/s-0038-1669411 Get It

AbstractA cochlear implant (CI) is a surgically implanted device for the treatment of severe to profound sensorineural hearing loss in children and adults. It works by transducing acoustic energy into an electrical signal, which is used to stimulate surviving spiral ganglion cells of the auditory nerve. The past 2 decades have witnessed an exponential rise in the number of CI surgeries performed. Continual developments in programming strategies, device design, and minimally traumatic surgical technique have demonstrated the safety and efficacy of CI surgery. As a result, candidacy guidelines have expanded to include both pre and postlingually deaf children as young as 1 year of age, and those with greater degrees of residual hearing. A growing proportion of patients are undergoing CI for off-label or nontraditional indications including single-sided deafness, retrocochlear hearing loss, asymmetrical sensorineural hearing loss (SNHL) in adults and children with at least 1 ear that is better than performance cut-off for age, and children less than 12 months of age. Herein, we review CI design, clinical evaluation, indications, operative technique, and outcomes. We also discuss the expanding indications for CI surgery as it relates to lateral skull base pathology, comparing CI to auditory brainstem implants, and address the concerns with obtaining magnetic resonance imaging (MRI) in CI recipients.
Normal Variant Occipital Pneumatization
Tomblinson, Courtney M. , Deep, Nicholas L. , Fletcher, Geoffrey P. , Nelson, Kent D., Patel, Ameet C. , Weindling, Steven M. , Lane, John I. , Hoxworth, Joseph M.

Otology & Neurotology | August 5, 2018 | Volume: 39 | Issue: 9 | Pages: e872-e875

10.1097/mao.0000000000001947 Get It

Objective: Evaluate prevalence and pattern of occipital pneumatization (OP). Patients: Individuals with imaging evidence of OP on computed tomography (CT). Intervention(s): High resolution CT scans of the temporal bone. Main Outcome Measure: The prevalence and pattern of OP on 1000 CT scans performed at a large academic healthcare system. Results: OP had a prevalence of 11.8% (n = 118) while occipital condyle pneumatization occurred in only 0.3%. Occipital air cells were right-sided in 27.1% (n = 32), left-sided in 51.7% (n = 61), and bilateral in 21.2% (n = 25), and OP was contiguous with the occipitomastoid suture. In cases of unilateral OP, the contralateral jugular foramen demonstrated relative enlargement ( p = 0.006), but a direct association could not be established. Conclusions: The occipital bone is an accessory site of skull base pneumatization in 11.8% of the population undergoing temporal bone CT, while air cell extension into the occipital condyle occurs more rarely. These occipital air cells have a left-sided predilection and are always in direct proximity to the occipitomastoid suture, suggesting developmental egress from the mastoid. OP is a normal variant and lacks features of craniocervical pneumatization, which is a rare disorder.
Skull Base Ebstein−Barr—s Virus−Associated Smooth Muscle Tumor in an 8-Year-Old Girl with CD4+ and CD8+ Lymphopenia
Deep, Nicholas L. , Driscoll, Colin L. W., Jentoft, Mark E. , Link, Michael J. , Daniels, David J., Brown, Desmond , Giannini, Caterina , Daniels, David J.

Journal of Neurological Surgery Part B: Skull Base | July 13, 2018 | Volume: 79 | Issue: S 01 | Pages: S1-S188

10.1055/s-0038-1633639 Get It

Synchronous Epstein-Barr virus–associated skull base and adrenal smooth-muscle tumors in an 8-year-old girl with recent Epstein-Barr virus infection
Deep, Nicholas L. , Driscoll, Colin L. W., Link, Michael J. , Jentoft, Mark E. , Brown, Desmond , Daniels, David J.

Journal of Neurosurgery: Pediatrics | June 15, 2018 | Volume: 22 | Issue: 3 | Pages: 283-287

10.3171/2018.3.peds17609 Get It

Epstein-Barr virus–associated smooth-muscle tumors are rare tumors seen in immunocompromised patients. Most cases occur in the context of AIDS and organ transplantation, and very rarely in the setting of congenital immunodeficiency, with only 5 case reports of the latter published so far in the literature. The authors report the case of a previously healthy 8-year-old girl with headaches and precocious puberty who was found to have a large skull base lesion. There was a synchronous left adrenal lesion. She underwent resection of the skull base lesion and a left adrenalectomy. Thorough evaluation for immunodeficiency was negative for a known congenital immunodeficiency syndrome. She had a short course of intravenous immunoglobulin and has had no recurrence of disease or new lesions in the 17 months since presentation. Continued surveillance for the development of opportunistic infections and new or recurrent lesions is warranted in this case. Repeat surgery for surgically accessible tumors or chemoradiation would be recommended for any additional lesions.
Reply to Letter to the Editor: Paget's Disease of the Temporal Bone: A Single-Institution Contemporary Review of 27 Patients
Deep, Nicholas L. , Besch‐Stokes, Jake , Lane, John I. , Driscoll, Colin L. W., Carlson, Matthew L. , Besch-Stokes, J G

Otology & Neurotology | September 7, 2017 | Volume: 38 | Issue: 10 | Pages: 1547-1548

10.1097/mao.0000000000001562 Get It

Diagnosing Large Vestibular Aqueduct: Radiological Review of High-Resolution CT Versus High-Resolution Volumetric MRI
Deep, Nicholas L. , Carlson, Matthew L. , Weindling, Steven M. , Barrs, David M., Driscoll, Colin L. W., Lohse, Christine M. , Lane, John I. , Hoxworth, Joseph M.

Otology & Neurotology | June 9, 2017 | Volume: 38 | Issue: 7 | Pages: 948-955

10.1097/mao.0000000000001482 Get It

Objectives: To compare the diagnostic yield of high-resolution volumetric T2-weighted MRI (HRT2-MRI) with high-resolution computed tomography (HRCT) for diagnosis of large vestibular aqueduct (LVA). Study Design: Three board-certified neuroradiologists performed an independent, blinded radiological review for diagnosing LVA with 2:1 age-matched controls on patients with both HRCT and HRT2-MRI imaging. Setting: Tertiary referral center. Patients: All patients between 2002 and 2016 with hearing loss who underwent both HRCT and HRT2-MRI and were diagnosed with LVA on either modality. Main Outcome Measures: Concordance rate for LVA between HRCT and HRT2-MRI. Results: Concordance rate for HRCT and HRT2-MRI for diagnosing LVA was 88% (124/141) when assessing both the midpoint and external aperture diameters. Fifteen ears had LVA on computed tomography (CT), but not on magnetic resonance imaging (MRI); in comparison, two ears had LVA on MRI, but not on CT (p = 0.002). Excellent inter-rater reliability among the three radiologists was demonstrated. Conclusion: Historically, HRCT has been the imaging modality of choice for diagnosing LVA. Although a higher concordance rate of HRT2-MRI was found compared with previous studies utilizing earlier MRI technology, HRCT still detected a larger number of patients with clinically significant hearing loss compared with MRI. Given the high concordance rate and efficacy of both modalities in diagnosing LVA, the ultimate decision of which modality to choose may depend on other patient-specific and clinical factors.
Paget's Disease of the Temporal Bone: A Single-Institution Contemporary Review of 27 Patients
Deep, Nicholas L. , Besch‐Stokes, Jake , Lane, John I. , Driscoll, Colin L. W., Carlson, Matthew L. , Besch-Stokes, J G

Otology & Neurotology | May 12, 2017 | Volume: 38 | Issue: 6 | Pages: 907-915

10.1097/mao.0000000000001430 Get It

Objectives: To report a contemporary review from a single-institution series on Paget's disease of the temporal bone (PDTB). Study Design: Retrospective chart review of patients evaluated from 1998 to 2016. Setting: Quaternary referral center. Patients: Patients with radiographically confirmed PDTB. Main Outcome Measures: Clinical, audiological, and radiological features and management strategies of PDTB. Results: A total of 50 temporal bones in 27 patients (15 men) were diagnosed with PDTB. Symptoms at presentation included hearing loss (n = 23, 85%), headache (n = 18, 67%), dizziness (n = 14, 52%), tinnitus (n = 5, 19%), chronic otitis media (n = 2, 7%), hemifacial spasm without facial paralysis (n = 1, 4%), multiple cranial neuropathies (n = 1, 4%), and neoplastic transformation (n = 1, 4%). Of the 23 ears with audiometric data available for review, 65% exhibited sensorineural hearing loss, and 35% mixed hearing loss. Long-term audiometric follow-up was available on two patients, both of whom demonstrated hearing loss at a rate greater than would be expected for normal aging. Two patients underwent successful cochlear implantation, achieving open-set speech recognition. Radiographic features of temporal bone involvement are reviewed and illustrated. Conclusion: This is the largest single-institution clinical series examining patients with PDTB in the English literature. Variable patterns of temporal bone involvement by Paget's disease are observed leading to a diverse set of clinical symptoms, including slowly progressive hearing loss, tinnitus, compressive cranial neuropathies, and benign or malignant tumorigenesis. Involvement typically begins in the petrous apex and progresses laterally. Otic capsule bone demineralization occurs late in the disease process. Cochlear implantation appears to be an effective management strategy for patients with severe-to-profound hearing loss.
Measurement of cochlear length using the ‘A' value for cochlea basal diameter: A feasibility study
Deep, Nicholas L. , Howard, Brittany E. , Holbert, Sarah O., Hoxworth, Joseph M. , Barrs, David M., Hoxworth, Joseph M

Cochlear Implants International | February 25, 2017 | Volume: 18 | Issue: 4 | Pages: 226-229

10.1080/14670100.2017.1292689 Get It