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Blankenship CM, Hunter LL, Feeney MP, Cox M, Bittinger L, Garinis AC, Lin L, McPhail G, Clancy JP. Functional Impacts of Aminoglycoside Treatment on Speech Perception and Extended High-Frequency Hearing Loss in a Pediatric Cystic Fibrosis Cohort. Am J Audiol 2021; 30:834-853. [PMID: 33465313 DOI: 10.1044/2020_aja-20-00059] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Purpose The purpose of this study is to better understand the prevalence of ototoxicity-related hearing loss and its functional impact on communication in a pediatric and young adult cohort with cystic fibrosis (CF) and individuals without CF (controls). Method We did an observational, cross-sectional investigation of hearing function in children, teens, and young adults with CF (n = 57, M = 15.0 years) who received intravenous aminoglycoside antibiotics and age- and gender-matched controls (n = 61, M = 14.6 years). Participants completed standard and extended high-frequency audiometry, middle ear measures, speech perception tests, and a hearing and balance questionnaire. Results Individuals with CF were 3-4 times more likely to report issues with hearing, balance, and tinnitus and performed significantly poorer on speech perception tasks compared to controls. A higher prevalence of hearing loss was observed in individuals with CF (57%) compared to controls (37%). CF and control groups had similar proportions of slight and mild hearing losses; however, individuals with CF were 7.6 times more likely to have moderate and greater degrees of hearing loss. Older participants displayed higher average extended high-frequency thresholds, with no effect of age on average standard frequency thresholds. Although middle ear dysfunction has not previously been reported to be more prevalent in CF, this study showed that 16% had conductive or mixed hearing loss and higher rates of previous otitis media and pressure equalization tube surgeries compared to controls. Conclusions Individuals with CF have a higher prevalence of conductive, mixed, and sensorineural hearing loss; poorer speech-in-noise performance; and higher rates of multiple symptoms associated with otologic disorders (tinnitus, hearing difficulty, dizziness, imbalance, and otitis media) compared to controls. Accordingly, children with CF should be asked about these symptoms and receive baseline hearing assessment(s) prior to treatment with potentially ototoxic medications and at regular intervals thereafter in order to provide otologic and audiologic treatment for hearing- and ear-related problems to improve communication functioning.
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Affiliation(s)
- Chelsea M. Blankenship
- Communication Sciences Research Center, Cincinnati Children's Hospital Medical Center, OH
- Departments of Otolaryngology and Communication Sciences and Disorders, University of Cincinnati, OH
| | - Lisa L. Hunter
- Communication Sciences Research Center, Cincinnati Children's Hospital Medical Center, OH
- Departments of Otolaryngology and Communication Sciences and Disorders, University of Cincinnati, OH
| | - M. Patrick Feeney
- Oregon Hearing Research Center, Oregon Health & Science University, Portland
- National Center for Rehabilitative Auditory Research, VA Portland Health Care System, OR
| | - Madison Cox
- Communication Sciences Research Center, Cincinnati Children's Hospital Medical Center, OH
| | - Lindsey Bittinger
- Communication Sciences Research Center, Cincinnati Children's Hospital Medical Center, OH
| | - Angela C. Garinis
- Oregon Hearing Research Center, Oregon Health & Science University, Portland
- National Center for Rehabilitative Auditory Research, VA Portland Health Care System, OR
| | - Li Lin
- Research in Patient Services, Cincinnati Children's Hospital Medical Center, OH
| | - Gary McPhail
- Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, OH
| | - John P. Clancy
- Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, OH
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McCoy JL, Kaffenberger TM, Yang TS, Dohar JE. Otitis media prone children with cystic fibrosis: A new normal. Am J Otolaryngol 2021; 42:103137. [PMID: 34174638 DOI: 10.1016/j.amjoto.2021.103137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 06/13/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVES To determine if children with cystic fibrosis (CF) who are otitis media prone and treated with tympanostomy tube placement (TTP) follow the natural course of non-CF children regarding the incidence of tympanostomy tube otorrhea (TTO) (21-34%). METHODS All CF patients seen at a large tertiary pediatric hospital were retrospectively reviewed from 2010 to 2019. A total of 483 patients were identified and seventeen met the inclusion criteria and were included in the analysis. Data collected included demographics, CF diagnosis history including date of diagnosis and genotype, TTP notes, and otorrhea found in otolaryngology clinic and pediatrician clinic notes for up to 18 months post-TTP. RESULTS CF was diagnosed at a median age of 13 days (0 days to 6 years). In terms of surgical frequency, 14/17 (82.4%) patients had one TTP, 2/17 (11.8%) had two TTPs, and 1/17 (5.9%) had five TTPs. The median (range) age at first TTP was 2 years (3 months to 13 years). After the first TTP, TTO occurred in 5 (29.4%) patients at 3 months, 6 (35.3%) at 6 and 9 months, and 7 (41.2%) at 12 and 18 months at median (range) = 1 (0-5) otolaryngology appointments and median (range) = 0 (0-8) pediatrician appointments. CONCLUSION To our knowledge this is the first study to report that CF children are more likely to be severely affected with recurrent acute otitis media (RAOM), to require TTP, and to exhibit a natural history of TTO commensurate with the non-CF population.
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McCoy JL, Kaffenberger TM, Yang TS, Shaffer AD, Dohar JE. Middle ear disease in CF? It's not just about the sinuses anymore! Int J Pediatr Otorhinolaryngol 2020; 134:110032. [PMID: 32259649 DOI: 10.1016/j.ijporl.2020.110032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/25/2020] [Accepted: 03/28/2020] [Indexed: 01/14/2023]
Abstract
INTRODUCTION Historically cystic fibrosis (CF), in contrast to primary ciliary dyskinesia (PCD), has been considered protective of the middle ear from otitis media and rarely were such patients "severely affected" to require tympanostomy tube placement (BMT). Previously the Pittsburgh Otitis Media Research group reported a 10% prevalence of otitis media in the pediatric CF population which is significantly lower than age matched non-CF children. We studied the prevalence of OM in pediatric CF patients to assess if the otologic phenotype has changed in parallel with changes in the diagnosis itself. METHODS The medical records of 133 CF patients seen either inpatient or outpatient from one of the largest tertiary pediatric CF centers in the world from 2010 to 2019 were reviewed for demographics, acute otitis media (AOM) episodes, risk factors for AOM, placement of myringotomy tubes, genotype, BMI, pancreatic status, respiratory culture results, and pulmonary exacerbations. RESULTS Just over half (52.6%) the patients were male. A median age for CF diagnosis was 11 days old (range 0 days-16 years). The most common genotype (49.6%) was homozygous for ΔF508 mutation. Fifty-five (41.4%) patients had 1-2 episodes of AOM, and 15 (11.3%) were severely affected (i.e. ≥3 episodes/6 months or ≥4 episodes/year). COME was diagnosed in 4 (3.0%) of the patients. Twelve (9.0%) patients had tympanostomy tubes at least once, including 3 patients with multiple sets of tubes. Having at least one AOM episode was not predicted by genetic mutation groups, BMI, age at diagnosis, or comorbidities, p > .05. CONCLUSIONS The time-honored adage of CF protecting against otitis media is no longer true and pediatric otolaryngologists must now prioritize the management of middle ear disease as highly as sino-nasal and pulmonary disease. Future study into mechanisms explaining the change is needed.
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Affiliation(s)
- Jennifer L McCoy
- Division of Pediatric Otolaryngology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Thomas M Kaffenberger
- Department of Otolaryngology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Tiffany S Yang
- Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Amber D Shaffer
- Division of Pediatric Otolaryngology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Joseph E Dohar
- Division of Pediatric Otolaryngology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA; Department of Otolaryngology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
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McCormick J, Cho DY, Lampkin B, Richman J, Hathorne H, Rowe SM, Woodworth BA. Ivacaftor improves rhinologic, psychologic, and sleep-related quality of life in G551D cystic fibrosis patients. Int Forum Allergy Rhinol 2018; 9:292-297. [PMID: 30472785 DOI: 10.1002/alr.22251] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 11/01/2018] [Accepted: 11/04/2018] [Indexed: 02/04/2023]
Abstract
BACKGROUND Ivacaftor is a cystic fibrosis transmembrane conductance regulator (CFTR) potentiator that improves pulmonary function in cystic fibrosis (CF) patients with at least 1 copy of the G551D CFTR mutation. The purpose of this study is to evaluate the impact of ivacaftor on chronic rhinosinusitis (CRS) symptoms in this population. METHODS The G551D Observational (GOAL) study was a multicenter prospective cohort study enrolling CF patients ≥6 years with at least 1 G551D mutation. Subjects were provided 20-item Sino-Nasal Outcome Test (SNOT-20) questionnaires prior to ivacaftor therapy and at 1, 3, and 6 months afterward. The impact on rhinologic (R), psychological (P), sleep (S), and ear/facial (E) quality of life (QOL) domains was evaluated separately. RESULTS Of 153 subjects, 129 (84%) completed all questionnaires. Typical baseline symptom burden was low (75% with scores <1) and degree of improvement (ie, reduced scores) was greater with higher baseline scores. SNOT-20 decreased, reflecting improvement, at all follow-up intervals (1 month: [mean change ± standard deviation] -0.25 ± 0.53, p < 0.01; 3 months; -0.29 ± 0.58, p < 0.01; 6 months: -0.21 ± 0.58, p = 0.02), but less than the prespecified minimal clinically important difference (0.8). Significant improvement was observed at 1, 3, and 6 months in the R domain (1 month: -0.24, p < 0.01; 3 months: -0.34, p < 0.01; 6 months: -0.25, p < 0.01) and P domain (1 month: -0.25, p < 0.01; 3 months: -0.32, p < 0.01; 6 months: -0.26, p < 0.01), and 1 and 3 months in the S domain (1 months: -0.35, p < 0.01; 3 months: -0.32, p < 0.01; 6 months: -0.18, p = 0.07). There was no improvement in the E domain at any time point. CONCLUSION Ivacaftor improves QOL in the R, P, and S domains in G551D CF patients, although QOL instruments validated for CRS may not translate well to CF CRS patients because symptom burden was surprisingly low.
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Affiliation(s)
- Justin McCormick
- Department of Otolaryngology-Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, AL
| | - Do-Yeon Cho
- Department of Otolaryngology-Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, AL
| | - Brooks Lampkin
- College of Medicine, University of South Alabama, Mobile, AL
| | - Joshua Richman
- Department of Otolaryngology-Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, AL
| | - Heather Hathorne
- Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL
| | - Steven M Rowe
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL.,Gregory Fleming James Cystic Fibrosis Research Center, Birmingham, AL
| | - Bradford A Woodworth
- Department of Otolaryngology-Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, AL
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Kreicher KL, Bauschard MJ, Clemmens CS, Riva CM, Meyer TA. Audiometric assessment of pediatric patients with cystic fibrosis. J Cyst Fibros 2017; 17:383-390. [PMID: 29289454 DOI: 10.1016/j.jcf.2017.10.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 10/11/2017] [Accepted: 10/11/2017] [Indexed: 11/18/2022]
Abstract
BACKGROUND The purpose of this study was to evaluate hearing impairment in pediatric patients with cystic fibrosis (CF). METHODS This is a retrospective analysis of the AudGen database generated by Children's Hospital of Philadelphia. Audiograms were analyzed for type of hearing loss (HL), pure-tone-average (PTA), laterality, and change in hearing over time. Medical charts were reviewed to identify factors that influence development and progression of hearing loss. RESULTS 217 patients with CF were included in this study. 69 (31.8%) had hearing loss on initial audiogram. Chronic otitis media (OR: 2.4, 95% CI: 1.3-4.5, p<0.01), Eustachian tube dysfunction (OR: 2.4, 95% CI: 1.4-5.4, p<0.01), and otorrhea (OR: 6.3, 95% CI: 1.6-24.7, p<0.01) were positive predictors of HL. Children with a diagnosis of diabetes had more decline in hearing over time than those without diabetes (12.4±17.2dB worsening vs. -5.7±9.8dB improvement in PTA, p=0.014). CONCLUSION This is the largest comprehensive analysis of all types of hearing loss in pediatric patients with CF. Our data suggest that children with more severe sinus disease may be at lower risk for inflammatory middle ear disease and subsequent hearing loss. Patients who develop complications of CF such as diabetes should be monitored frequently, and the use of ototoxic drugs should be limited if possible.
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Affiliation(s)
- Kathryn L Kreicher
- Department of Otolaryngology-Head & Neck Surgery, Medical University of South Carolina, Charleston, SC, United States; Case Western Reserve University School of Medicine, Cleveland, OH, United States.
| | - Michael J Bauschard
- Department of Otolaryngology-Head & Neck Surgery, Medical University of South Carolina, Charleston, SC, United States.
| | - Clarice S Clemmens
- Department of Otolaryngology-Head & Neck Surgery, Medical University of South Carolina, Charleston, SC, United States.
| | - Concetta Maria Riva
- Department of Otolaryngology-Head & Neck Surgery, Medical University of South Carolina, Charleston, SC, United States; Department of Pediatrics, Medical University of South Carolina, Charleston, SC, United States.
| | - Ted A Meyer
- Department of Otolaryngology-Head & Neck Surgery, Medical University of South Carolina, Charleston, SC, United States.
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Malone A, Bruni M, Wong R, Tabor M, Boyev KP. Pneumatization Patterns of the Petrous Apex and Lateral Sphenoid Recess. J Neurol Surg B Skull Base 2017; 78:441-446. [PMID: 29134161 DOI: 10.1055/s-0037-1603972] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 05/12/2017] [Indexed: 12/23/2022] Open
Abstract
Introduction The petrous apex poses a challenge for surgical intervention due to poor access. As intraoperative image guidance and surgical instrumentation improve, newer endoscopic approaches are increasingly favored. This study aims to provide normative data on the anatomy of the lateral sphenoid sinus recess and petrous apex. These normative data could assist in determining the efficacy of a transnasal transsphenoidal approach to lesions of the anteroinferior petrous apex. Methods This is a retrospective study investigating normative data on all maxillofacial computed tomography (CT) scans performed at a level I trauma center over a 6-month period. All appropriate images had the pneumatization pattern of the petrous apex and lateral recess of the sphenoid sinus reviewed by a single otologist and graded bilaterally. These were then analyzed in SPSS; Pearson correlation analyses and χ 2 test were used. Results A total of 481 patients were identified, yielding a total of 962 temporal bones and sphenoid sinuses for analysis. Eighty-eight percent of sides analyzed had a nonpneumatized lateral recess. The petrous apex was nonpneumatized in 54% of sides analyzed. There was a correlation noted between the degree of pneumatization of the petrous apex and pneumatization of the lateral recess of the sphenoid. Conclusion This study is the first to provide normative data comparing pneumatization of the petrous apex and sphenoid sinus. These data may support future work evaluating the utility of an endonasal approach to the petrous apex.
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Affiliation(s)
- Alexander Malone
- Department of Otolaryngology-Head & Neck Surgery, University of South Florida Morsani College of Medicine, Tampa, Florida, United States
| | - Margherita Bruni
- Department of Otolaryngology, New York Head & Neck Institute-Northwell Health, New York, New York, United States
| | - Robert Wong
- Department of Otolaryngology, Bronx Lebanon Hospital Center, Bronx, New York, United States
| | - Mark Tabor
- Department of Otolaryngology-Head & Neck Surgery, University of South Florida Morsani College of Medicine, Tampa, Florida, United States
| | - K Paul Boyev
- Department of Otolaryngology-Head & Neck Surgery, University of South Florida Morsani College of Medicine, Tampa, Florida, United States
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Changes in the inner ear structures in cystic fibrosis patients. Int J Pediatr Otorhinolaryngol 2017; 92:108-114. [PMID: 28012509 PMCID: PMC5344023 DOI: 10.1016/j.ijporl.2016.11.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 11/13/2016] [Accepted: 11/14/2016] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Although prolonged use of antibiotics is very common in cystic fibrosis (CF) patients, no studies have assessed the changes in both cochlear and peripheral vestibular systems in this population. METHODS We used human temporal bones to analyze the density of vestibular dark, transitional, and hair cells in specimens from CF patients who were exposed to several types of antibiotics, as compared with specimens from an age-matched control group with no history of ear disease or antibiotic use. Additionally, we analyzed the changes in the elements of the cochlea (hair cells, spiral ganglion neurons, and the area of the stria vascularis). Data was gathered using differential interference contrast microscopy and light microscopy. RESULTS In the CF group, 83% of patients were exposed to some ototoxic drugs, such as aminoglycosides. As compared with the control group, the density of both type I and type II vestibular hair cells was significantly lower in all structures analyzed; the number of dark cells was significantly lower in the lateral and posterior semicircular canals. We noted a trend toward a lower number of both inner and outer cochlear hair cells at all turns of the cochlea. The number of spiral ganglion neurons in Rosenthal's canal at the apical turn of the cochlea was significantly lower; furthermore, the area of the stria vascularis at the apical turn of the cochlea was significantly smaller. CONCLUSIONS Deterioration of cochlear and vestibular structures in CF patients might be related to their exposure to ototoxic antibiotics. Well-designed case-control studies are necessary to rule out the effect of CF itself.
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Kang SH, Meotti CD, Bombardelli K, Piltcher OB, de Tarso Roth Dalcin P. Sinonasal characteristics and quality of life by SNOT-22 in adult patients with cystic fibrosis. Eur Arch Otorhinolaryngol 2016; 274:1873-1882. [DOI: 10.1007/s00405-016-4426-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 12/07/2016] [Indexed: 10/20/2022]
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Bluestone CD, Hebda PA, Alper CM, Sando I, Buchman CA, Stangerup SE, Felding JU, Swarts JD, Ghadiali SN, Takahashi H. 2. Eustachian Tube, Middle Ear, and Mastoid Anatomy; Physiology, Pathophysiology, and Pathogenesis. Ann Otol Rhinol Laryngol 2016; 194:16-30. [PMID: 15700932 DOI: 10.1177/00034894051140s105] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Charles D Bluestone
- Department of Otolaryngology, University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh, Pennsylvania, USA
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Jackler RK, Santa Maria PL, Varsak YK, Nguyen A, Blevins NH. A new theory on the pathogenesis of acquired cholesteatoma: Mucosal traction. Laryngoscope 2015; 125 Suppl 4:S1-S14. [PMID: 26013635 DOI: 10.1002/lary.25261] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 02/20/2015] [Indexed: 01/16/2023]
Abstract
OBJECTIVES/HYPOTHESIS Although the migration of its squamous outer surface of the tympanic membrane has been well characterized, there is a paucity of data available concerning the migratory behavior of its medial mucosal surface. Existing theories of primary acquired cholesteatoma pathogenesis do not adequately explain the observed characteristics of the disease. We propose a new hypothesis, based upon a conjecture that mucosal membrane interactions are the driving force in cholesteatoma. STUDY DESIGN A retrospective chart review and a prospective observational cohort study in rats. METHODS After developing the new theory, it was tested through both clinical and experimental observations. To evaluate whether impairment of middle ear mucociliary migration would influence cholesteatoma formation, a retrospective chart review evaluating cholesteatoma occurrence in a sizable population of patients with either primary ciliary dyskinesia (PCD) or cystic fibrosis (CF) was performed. To study mucosal migration on the medial aspect of the tympanic membrane, ink tattoos were monitored over time in a rat model. RESULTS No cholesteatomas were identified in either PCD patients (470) or in CF patients (1,910). In the rat model, mucosa of the posterior pars tensa migrated toward the posterior superior quadrant, whereas the mucosa of the anterior pars tensa migrated radially toward the annulus. CONCLUSION Mucosal coupling with traction generated by interaction of migrating opposing surfaces provides the first comprehensive theory that explains the observed characteristics of primary acquired cholesteatoma. The somewhat counterintuitive hypothesis that cholesteatoma is fundamentally a mucosal disease has numerous therapeutic implications.
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Affiliation(s)
- Robert K Jackler
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, California, U.S.A
| | - Peter L Santa Maria
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, California, U.S.A
| | - Yasin K Varsak
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, California, U.S.A
| | - Anh Nguyen
- Department of Otolaryngology-Head and Neck Surgery, Oregon Health and Science University, Portland, Oregon, U.S.A
| | - Nikolas H Blevins
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, California, U.S.A
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Berkhout MC, van Rooden CJ, Aalbers RC, el Bouazzaoui LH, Fokkens WJ, Rijntjes E, Heijerman HGM. Temporal bone pneumatization in cystic fibrosis: a correlation with genotype? Laryngoscope 2014; 124:1682-6. [PMID: 24374715 DOI: 10.1002/lary.24575] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 12/05/2013] [Accepted: 12/23/2013] [Indexed: 11/10/2022]
Abstract
OBJECTIVES/HYPOTHESIS Paranasal sinus pneumatization in patients with cystic fibrosis (CF) is less extensive compared to the general population and seems to be correlated to CF genotype. Interestingly, in CF patients temporal bone pneumatization (TBP) is more extensive compared to the general population, and middle ear pathology is generally uncommon in CF. It is debated whether TBP is influenced environmentally or genetically. The aim of the present study was to investigate pneumatization of the temporal bone in patients with CF and to correlate this with genotype and paranasal sinus volume. STUDY DESIGN Prospective collection of data. METHODS In 104 adult CF patients, computed tomography of the temporal bone and the paranasal sinuses was performed. TBP was graded using a validated scoring system. Patients were divided into two groups, mild and severe CF, based on their mutations in the CF transmembrane conductance regulator gene. RESULTS Of the 31 patients with mild CF, 71% had extensive TBP, and of the 73 patients with severe CF, 82% had extensive pneumatization of the temporal bone. TBP did not differ significantly for CF genotype, and TBP was not correlated to paranasal sinus volume. CONCLUSIONS Whereas paranasal sinus pneumatization in CF patients seems to be related to CF genotype among other influencing factors, this study showed no correlation between TBP and CF genotype. TBP was not correlated to paranasal sinus volume. Hypothetically, in CF, pneumatization of the temporal bone is under a different influence than paranasal sinus pneumatization. LEVEL OF EVIDENCE 4.
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Affiliation(s)
- Maaike C Berkhout
- Departments of Pulmonology, Haga Teaching Hospital, the Hague, the Netherlands
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Hill CA. Ontogenetic Change in Temporal Bone Pneumatization in Humans. Anat Rec (Hoboken) 2011; 294:1103-15. [DOI: 10.1002/ar.21404] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2010] [Accepted: 03/10/2011] [Indexed: 11/06/2022]
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Lim DJ, Hermansson A, HellstrÖ SO, Hussl B, Alper CM, Uno Y, Andalibi A, Jung TTK, Bakaletz LO, Kawauchi H, Buchman CA, Kerschner J, Cayé-Thomasen P, Lin J, Chole RA, Merchant SN, Herman P, Lee HY, Kang SH, Paparella MM. 3. Animal Models; Anatomy and Pathology; Pathogenesis; Cell Biology and Genetics. Ann Otol Rhinol Laryngol 2005. [DOI: 10.1177/000348940511401s01] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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