Postoperative Tympanometry Research Articles

Balloon dilation of the eustachian tube using endovascular balloon under local anesthesia-a case series and systematic literature review.

To report a novel technique in Balloon Dilation of Eustachian Tube (BDET) using an endovascular balloon (EVB), in a prospective cohort. The results are compared with reported outcomes using standard balloons. Demographic information and clinical parameters were collected prospectively fora series of patients with obstructive eustachian tube dysfunction (OETD). Balloon dilation Eustachian tuboplasty was performed under local anesthesia in a tertiary referral center, using the EVB. Systematic literature review was used for comparison, using Medline via "PubMed", "Embase", and "Web of Science". Eight OETD candidates (12 ears) were enrolled; 5 males and 3 females. Average age was 48 (range -23 to 63) years. The most common presenting symptom was aural fullness (9/12), followed by ear pressure (7/12), hearing loss (5/12) and tinnitus (4/12). Otoscopically, tympanic membrane retraction was evident in 10/12 ears, the majority of which was class II-Sade classification. Pre-operative tympanogram was type B and C in 7 and 5 ears, respectively. All BDETs were performed without complications. Post-operative tympanometry was A in 8/12 ears. Post-operatively, Eustachian Tube Dysfunction Questionnaire-7 results reduced to within normal limits (average score ≤3) in 11/12 ears (p = 0.0014). The systematic literature review included 6 papers (193 patients, 262 ETs) with comparable results, most also with little adverse effects. BDET using an EVB is a safe and effective option for OETD. It is well tolerated under local anesthesia in properly selected individuals. The reduced procedural cost may be an important factor in certain healthcare jurisdictions.

Effect of cartilage tympanoplasty operation on compliance and hearing results

Aim: The purpose of this study was to investigate the effect of cartilage island grafts used in type 1 tympanoplasty surgery on compliance and hearing results.Methods: In this retrospective study, the medical records of patients who underwent type 1 tympanoplasty between May 2019 and December 2021 were reviewed. A total of 40 patients were included in the study. Preoperative audiological and tympanometry test results were compared with 6-month postoperative results. The effect of cartilage island graft on compliance and hearing levels was compared, preoperatively and postoperatively at the 6th-month follow-up.Results: Forty percent of patients were male, and 60% were female (n=24). The mean age of patients was 41,2±12.5 years. All postoperative tympanometry results showed a type B tympanogram tracing, as a result, no compliance was detected. At 500 Hz-4000 Hz frequencies, both air conduction hearing levels and air-bone gap thresholds showed a statistically significant improvement (p

Comparative Analysis of Preoperative and Postoperative Tympanometry Findings in Patients with Adenoid in Lagos State University Teaching Hospital, Ikeja

Background: Adenoid is the collection of sub-epithelial lymphoid tissues under the mucosa of the nasopharynx situated at the junction of the roof and posterior wall of the nasopharynx, forming part of the Waldeyer’s ring of lymphoid tissues of the nasopharynx. It is also called Nasopharyngeal Tonsils and is composed of vertical ridges of lymphoid tissue separated by deep clefts, covered by ciliated columnar epithelium. Aim: To identify the Tympanometric findings in patients with Adenoids pre and post Adenoidectomy in LASUTH, Ikeja. Methodology: This is a Prospective interventional hospital-based clinical study was carried out at the Department of Otorhinolaryngology (ORL) of the Lagos State University Teaching Hospital, Ikeja, Lagos State, Nigeria. A structured questionnaire was distributed to all consecutive eligible patients diagnosed with adenoid hypertrophy seen at the Otorhinolaryngology Clinic who were recruited for the study. Thorough examination of the Ear, Nose and Throat and tympanometry were done a week before the Adenoidectomy and six weeks post-surgery. The analysis of data collected was done using Statistical Package for Social Sciences (SPSS) version 20. Results: A total of 103 subjects participated with 59.2% (61) being males and 40.8% females. The male to female ratio was 1:0.7. The most frequently affected age range was ≤ 3 years accounting for 39.8% (41) of cases while the least frequently affected was 7-9 years i.e 21.4% (22) of cases. Tympanometric findings post operatively revealed type B tympanogram (OME) was found in 72.9% of the ears, with the right ear accounting for 35.0% while the left ear was at 37.9% (p = 0.314). Postoperatively, type B tympanogram had reduced to 34% with the right ear accounting for 11.7% while the left ear was 22.3% (p = 0.314). There were also differences between the preoperative and post-operative type A and C tympanometric patterns. These differences were statistically significant (p = 0.002, p = 0.004) on the right and left ear respectively. Conclusion: Adenoid hypertrophy was more prevalent in the ≤ 3 years age range and the reduction in the frequency of type B tympanometry findings in the right and left ears postoperative was significantly less from the preoperative tympanometry findings among the subjects.

The necessity and effect of prophylactic quinolone ear drops after ventilation tube insertion for otitis media with effusion

BackgroundOtitis media with effusion (OME) is a condition where non-infective fluid builds up in the middle ear. Long-term OME can cause damage to the middle ear and hearing impairment. Ventilation tube insertion (VTI) is an efficient procedure to drain persistent OME. However, the effect of prophylactic ear drops after VTI remains controversial because no infection is present. This study investigated the need for and effect of quinolone ear drops in patients with OME after VTI. MethodsBetween July 2018 and July 2021, 272 patients (436 ears with OME) who underwent VTI were enrolled. Prophylactic quinolone ear drops (ofloxacin) were used in 271 OME ears and not used in 165. The clinical findings and effect of the ear drops were assessed. ResultsThe group with postoperative ofloxacin had less postoperative otorrhea (p < 0.001). In univariate analysis, age ≥ 13 years (odds ratio [OR] = 1.499, 95% confidence interval [CI]: 1.003–2.238, p = 0.046) was significantly associated with recovery to normal middle ear functioning (type A on postoperative tympanometry). No adenoid hypertrophy (OR = 1.692, 95% CI: 1.108–2.585, p = 0.014) and no postoperative otorrhea (OR = 2.816, 95% CI: 1.869–4.237, p < 0.001) were significant independent factors associated with middle ear recovery in both univariate and multivariate analysis. After VTI, 65% of tympanic membranes in the group with postoperative ofloxacin recovered to normal, while in 67% of tympanic membranes in the group without ofloxacin scarring remained. ConclusionsPatients who received prophylactic postoperative ofloxacin had less postoperative otorrhea. No adenoid hypertrophy and no postoperative otorrhea were significant independent predictors of middle ear recovery to normal function in both univariate analysis and multivariate analysis. However, prophylactic ofloxacin was not an independent predictor of normal middle ear functioning after VTI. After VTI, most OME patients who had used ofloxacin postoperatively had eardrums that were in better condition than those of patients who had not used ofloxacin. In this study, we confirmed the advantages and limitations of OME after VTI with prophylactic ofloxacin, thus providing clinicians with some guidance regarding the decision to administer prophylactic ofloxacin.

The Role of Concomitant Mastoidectomy in Improving Outcomes Following Tympanic Membrane Perforation Repair: A Systematic Review

AbstractBackground: The role of mastoidectomy performed with tympanoplasty for tympanic membrane perforations in the absence of cholesteatoma remains controversial. Many otolaryngologists continue to routinely perform mastoidectomy with tympanoplasty, others argue that performing mastoidec-tomy in these patients is unnecessary, does not improve surgical outcomes, and subjects patients to increased surgical risks.Aim of the Work: To assess the effectiveness and safety of performing routine cortical mastoidectomy in addition to tympanoplasty in treatment of tympanic membrane perforation in cases of chronic suppurative otitis media in the absence of cholesteatoma.Patients and Methods: Five randomized controlled trials with total of 610 participents were included of any age with chronic suppurative non cholestaetomatous otitis media, divided into two groups: Group A (received Tympanoplasty alone), Group B (Tymanplasty with cortical mastoidectomy).Five outcomes measured namely (healing rate,hearing rate, tympanometric evaluation, rate if otorrhea, need for subsequent procedure).Results: Articles reporting results of concomitant mas-toidectomy with tympanoplasty were identified. Five articles satisfied our eligibility criteria, there was no significant heterogeneity. Compared to the conventional method tympan-oplasty with cortical mastoidectomy was found to have a significantly higher rate of healing (odds ratio of 1.762 with a 95% CI of –1.115 to 2.787, no significant difference in post-operative air bone gap (SMD of .056 with 95% CI of –0.110 to 0.222), no significant difference in rate of otorrhea (odds ratio of 1.949 with a 95% CI of 0.528 to 7.192, no significant difference in post-operative tympanometry (odds ratio of type A, Astympanometry was 0.777 and a 95% CI of 0.278 to 2.179, no significant difference in rate of revision surgery (odds ratio 2.069 and a 95% CI of 0.178 to 24.075.Conclusions: From the result s of our systematic review we advise for the use of tympanoplasty alone for treatment of non cholesteatomatous chronic otitis media.

Laser Eustachian Tuboplasty for Eustachian Tube Dysfunction: a case series review.

The authors reviewed the literature regarding the safety and efficacy of Laser Eustachian Tuboplasty (LETP) in the treatment of Eustachian tube dysfunction (ETD). Medline via Pubmed, OvidSP and Science Direct were consulted, with a supplementary manual review of citations. English language case series constituted a baseline for inclusion. Primary outcome measures were pre- and post-operative tympanometry, otoscopy findings, subjective symptoms and pure tone audiometry, and findings were stratified into short term (≤6months) and long term (>6months-5years). Eight unique case series were identified, detailing LETP procedures in 306 patients (462 Eustachian tubes). LETP demonstrated mixed short-term and positive long-term results across primary outcome measures. There was an overall complication rate of ≈4.4%, and no major adverse events were reported. Poor documentation of pre- and post-operative primary outcome measures and inter-study outcome heterogeneity prevents substantive comment on efficacy. Whilst LETP is safe, its use should remain limited to research in adults. Future trials should be casecontrolled, and detail pre- and post-operative tympanometry, otoscopy findings, subjective symptoms, and pure tone audiometry. Patients should also be stratified into those suffering from baro-challenge induced ETD, and those suffering from ETD with intractable sequelae, such as Chronic Otitis Media.

Middle ear ventilation status postoperatively after translabyrinthine resection of vestibular schwannoma with mastoid obliteration and Eustachian tube occlusion: Is the Eustachian tube enough to ventilate the middle ear without the mastoid air cell system?

BackgroundGas pressure balance is essential for maintaining normal middle ear function. The mucosal surfaces of the middle ear, the mastoid air cell system (MACS), and the Eustachian tube (ET) play a critical role in this process; however, the extent that each of these factors contributes to overall middle ear ventilation is unknown. The objective of this study was to determine if the ET alone can maintain normal middle ear pressure without the MACS. To do this, we reviewed subjects who had their MACS completely removed with translabyrinthine (TL) surgery for vestibular schwannoma.MethodsA retrospective chart review was done to collect pre and postoperative tympanometry data from patients who underwent resection of vestibular schwannoma. Data from the operative side was compared to the non-operative side at 2 years post-op.ResultsTwenty-four patients were included in this study. Of these, 63 % achieved a type A tympanogram at 2 years post-op in the TL resection group, implying an ability to maintain middle ear pressure in the absence of a mastoid cavity. Because some had negative pressures post TL resection, the average change in pre and postoperative pressure was -37.5 daPa for the operative side and 7.8 daPa for the non-operative side. This was significantly different.DiscussionThe difference for change in pre and postoperative pressure and compliance between operative and non-operative side might be expected from the ET plugging during TL resection. However, more interesting are those patients in whom the ET presumably reopens, and in these subjects, despite having no mastoid compartment at all, and the space obliterated with fat, they were still able to maintain normal ventilation of the middle ear space.ConclusionOur findings imply that the ET alone is adequate to ventilate at least the reduced middle ear space following TL surgery in most subjects, and perhaps in 100 % if the ET hadn’t been plugged during surgery. Hence, the mastoid air cell system, even when healthy, is not needed to maintain air in the middle year cleft.

Effect of central inset pharyngeal flap for velopharyngeal insufficiency on eustachian tube function

The aim of this study was to assess the effect of the central inset pharyngeal flap, used for correcting persistent velopharyngeal incompetence after cleft palate repair, on Eustachian tube (ET) function. This study included 28 patients who were diagnosed with persistent velopharyngeal insufficiency following primary cleft palate repair, together with otitis media with effusion (OME) and/or ET dysfunction that failed to improve after the primary palatoplasty and extensive medical treatment. Diagnosis of velopharyngeal insufficiency (VPI) in these cases was performed by video nasoendoscopy and speech assessment. Prior to and after surgery, patients were assessed through otoscopic, tympanometric, and audiometric evaluation. All postoperative otoscopic findings were significantly better than preoperative (P < 0.05) finding, except for tympanic membrane (TM) calcification (P > 0.05). Postoperative tympanometry revealed type A curve (normal) in 30 ears (53.6%), with significant improvement in ET function after this type of flap (P < 0.001). ET can be improved after performing the superiorly based flap with new central inset in patients with persistent VPI following palatoplasty. Thus, there is no need for surgical interference to manage OME in these cases, except after trying this technique.

P14 TREND OF INFECTIVE ENDOCARDITIS IN TWO UNIVERSITY HOSPITALS IN RIO DE JANEIRO, BRAZIL

Nitrous oxide is an inhaling gas that can increase intratympanic pressure during the anesthetic act and cause negative pressure after it is discontinued, mainly in patients with Eustachian tube dysfunction. These pressure variations may come up with clinical implications such as tympanic membrane rupture, ossicular system disarticulation, haemotympanum, barotraumas, prosthesis displacement stapaedotomy and tympanic graft lateralization after tympanoplasty, in addition to serous fluid entrance into the middle ear during the negative pressure phase. Aim: To evaluate the nitrous oxide influence on the middle ear pressure in a population without tube malfunction performing pre and postoperative tympanometry. Study design: Transversal cohort. Material and Method: A prospective study was carried out with Universitário Clementino Fraga Filho Hospital- UFRJ inpatients submitted to general anesthesia with the use of 50% nitrous oxide from April to June 2003. It was also evaluated whether the duration of surgery, associated anesthetics, presence of allergic rhinitis and nasal septal deviation could contribute to the onset of intratympanic pressure alteration. Results: The sample was made up of 50 patients and in almost half of them (48%), postoperative tympanometry alterations (type C curve) were found when comparing to preoperative tympanometric control (type A curve). Neither gender nor age interfered in the onset of postoperative tympanometry alterations, similarly to surgery duration. The associated volatile anesthetic type, nasal septal deviation and allergic rhinitis were not able to influence postoperative middle ear pressure. Conclusion: Nitrous oxide modifies intratympanic pressure during the anesthetic act and after its discontinuation.

The effect of operation success on middle ear ventilation in patients with nasal septal deviation

This study aims to evaluate the effect of septal deviation causing nasal obstruction and septal surgery on middle ear ventilation. Twenty-five patients over 18 years of age (6 females, 19 males; mean age 24.7±6.1 years; range 18 to 38 years) who underwent septoplasty due to septal deviation with a normal baseline ear function were included in the study. Nasal obstruction was evaluated preoperatively and at three months postoperatively using visual analog scale and nasal obstruction symptom evaluation (NOSE) scale. Tympanometric tests were performed preoperatively and on seventh day, in the first month and third month postoperatively. There was a statistically significant difference in the mean NOSE score (p=0.00). The mean preoperative NOSE score was 55.5±16.4, while the mean postoperative (at 3 months) NOSE score was 19.0±7.7. The difference in preoperative and postoperative (at 3 months) NOSE scores was statistically significant (p=0.00). In the comparison of the preoperative and postoperative tympanometry results, no statistically significant difference was observed in middle ear pressures (p=0.375). There was no statistically significant relationship between postoperative NOSE scores and middle ear pressures (r=-0.10; p=0.943). Our study results showed that the success of septoplasty operation and operation success does not affect the ventilation and pressure of the middle ear significantly.

Do Silicone Nasal Septal Splints with Integral Airway Reduce Postoperative Eustachian Tube Dysfunction?

This study aims to compare the effects of Merocel nasal packs and silicone nasal septal splints with integral airway on the ventilation and pressure of the middle ear when applied intranasally after septoplasty for isolated septal deviation. A prospective, randomized trial. A tertiary referral center. Fifty-one patients who underwent septoplasty for nasal respiratory impairment caused by septal deviation were randomized into 2 groups. After septoplasty, bilateral anterior Merocel nasal packs were applied in one group, while silicone nasal septal splints with integral airway were applied in the other group. Middle ear pressures were compared using preoperative and post-operative tympanometry. Pathological decrease in the middle ear pressure in at least 1 ear was determined in 17 patients (73.9%) in the Merocel group compared with only 6 patients (21.4%) in the silicone nasal septal splint group at the 48th postoperative hour. In the first 24 hours following surgery, decreases in tympanometric pressures were seen in both groups, but more in the Merocel group. After 24 hours, middle ear pressures continued to decrease in the Merocel group but started to increase in the silicone nasal septal splint group. Because they allow inhalation through the nose and cause less Eustachian tube dysfunction than Merocel, using silicone nasal septal splints with integral airway instead of packing after septoplasty seems a more reasonable option.

Avaliação de alterações timpanométricas em pacientes submetidos à anestesia geral com óxido nitroso

O óxido nitroso é um gás inalatório que pode aumentar a pressão intratimpânica durante o ato anestésico, bem como causar pressão negativa após sua suspensão, principalmente em pacientes com disfunção da tuba auditiva. Estas variações pressóricas podem trazer implicações clínicas, como ruptura de membrana timpânica, desarticulação da cadeia ossicular, hemotímpano, barotrauma, deslocamento de prótese de estapedotomia e lateralização do enxerto nas timpanoplastias, além da entrada de fluido seroso na orelha média durante a fase de pressão negativa. OBJETIVO: Avaliar a influência do óxido nitroso na pressão da orelha média em uma população sem disfunção tubária, realizando timpanometria no pré e pós-operatório. FORMA DE ESTUDO: Coorte transversal. MATERIAL E MÉTODO: Foi realizado um estudo prospectivo com pacientes internados no Hospital Universitário Clementino Fraga Filho - UFRJ, submetidos à anestesia geral com o uso do óxido nitroso a 50%, durante o período de abril a julho de 2003. Avaliou-se ainda se a duração da cirurgia, anestésicos associados, presença de rinite alérgica e desvio de septo nasal poderiam influenciar no aparecimento das alterações da pressão intratimpânica. RESULTADOS: A amostra constituiu-se de 50 pacientes, encontrando-se em quase metade (48%) alterações timpanométricas no pós-operatório (curva tipo C), quando comparado às de controle do pré-operatório (curva tipo A). Sexo e idade não interferiram no aparecimento das alterações timpanométricas no pós-operatório, bem como a duração da cirurgia. O tipo de anestésico volátil associado, desvio de septo nasal e rinite alérgica não exerceram influência na pressão da orelha média no pós-operatório. CONCLUSÃO: O óxido nitroso altera a pressão na orelha média tanto na fase de indução quanto na fase de resolução anestésica.

Evaluation of tympanometric alterations in patients subject to general anesthesia with nitrous oxide

SummaryNitrous oxide is an inhaling gas that can increase intratympanic pressure during the anesthetic act and cause negative pressure after it is discontinued, mainly in patients with Eustachian tube dysfunction. These pressure variations may come up with clinical implications such as tympanic membrane rupture, ossicular system disarticulation, haemotympanum, barotraumas, prosthesis displacement stapaedotomy and tympanic graft lateralization after tympanoplasty, in addition to serous fluid entrance into the middle ear during the negative pressure phase. Aim: To evaluate the nitrous oxide influence on the middle ear pressure in a population without tube malfunction performing pre and postoperative tympanometry. Study design: Transversal cohort. Material and Method: A prospective study was carried out with Universitário Clementino Fraga Filho Hospital- UFRJ inpatients submitted to general anesthesia with the use of 50% nitrous oxide from April to June 2003. It was also evaluated whether the duration of surgery, associated anesthetics, presence of allergic rhinitis and nasal septal deviation could contribute to the onset of intratympanic pressure alteration. Results: The sample was made up of 50 patients and in almost half of them (48%), postoperative tympanometry alterations (type C curve) were found when comparing to preoperative tympanometric control (type A curve). Neither gender nor age interfered in the onset of postoperative tympanometry alterations, similarly to surgery duration. The associated volatile anesthetic type, nasal septal deviation and allergic rhinitis were not able to influence postoperative middle ear pressure. Conclusion: Nitrous oxide modifies intratympanic pressure during the anesthetic act and after its discontinuation.

Effect of nasal packing on Eustachian tube function

Sixty-three patients undergoing surgery to the nasal septum followed by bilateral packing had pre- and post-operative tympanometry in order to determine the effect on eustachian tube function. Fifty-five of the 126 ears tested (46 per cent) developed a reduction in middle ear pressure of at least 50 daPa; 76 per cent became normal within 24 hours of removing the nasal packs. All ears were asymptomatic and no patient had evidence of middle ear effusion. Nasal packing following septal surgery is a frequent cause of short-lasting eustachian tube dysfunction but rarely severe enough to cause symptoms or middle ear effusion. Tubal dysfunction is most likely due to a combination of surgical oedema and a direct effect of the nasal packing.

Tympanometry in three-year-old children. A cohort study on the prognostic value of tympanometry and operative findings in middle ear effusion.

The operative findings in a homogeneous, preoperatively followed population of 46 3- to 4-year-old children with middle ear effusion treated by adenotomy and paracentesis were correlated with the results of pre- and postoperative tympanometry. Factors of prognostic value were only the immediate type of tympanogram and the quantity of the middle ear effusion, not its viscosity. The combination of the determinative factors divided the material into four groups showing a different course through a 6-month postoperative follow-up. A flat tympanogram and impacted fluid spelt the poorest prognosis, with about 60% recurrences. The influence of the results upon a differentiated treatment of secretory otitis media in the younger age groups is outlined.