tympanomastoidectomy

鼓膜乳突切除术
  • 文章类型: Journal Article
    背景:在这项研究中,我们调查吸烟对疼痛评分的影响,生命体征,和镇痛消耗在术中和术后期间的患者进行鼓膜切除术。
    方法:共100名具有美国麻醉医师协会I-II状态的患者,18-55岁,计划接受鼓膜乳突切除术的患者分为两组:吸烟者(第1组)和非吸烟者(第2组).术前比较患者,术中,术后24小时碳氧血红蛋白,血压,氧饱和度,呼吸频率,心率,疼痛强度和言语数字评定量表,患者控制的曲马多剂量的程度,恶心,和呕吐。
    结果:每组50人。第1组术后镇痛剂用量和疼痛评分较高,术后首次疼痛感觉较早。此外,在第1组中,术前碳氧血红蛋白水平和术后恶心在统计学上较高,之后,在感应后的第十分钟,而氧饱和度较低。两组术中、术后生命体征差异无统计学意义。术后镇痛剂用量不受年龄或性别的影响。
    结论:吸烟改变术后疼痛管理,尤其是这种手术,这些患者感到更多的疼痛,需要更多的术后镇痛剂量。因此,有效的术后疼痛控制应考虑吸烟行为,和镇痛剂量可能需要调整吸烟的患者。
    BACKGROUND: In this study, we investigate the effects of smoking on pain scores, vital signs, and analgesic consumption in the intraoperative and postoperative period in patients undergoing tympanomastoidectomy surgery.
    METHODS: A total of 100 patients with American Society of Anesthesiologists I-II status, aged 18-55 years, and who were planned to undergo tympanomastoidectomy surgery were divided into two groups: smokers (Group 1) and non-smokers (Group 2). The patients were compared for preoperative, intraoperative, and 24-hour postoperative carboxyhemoglobin, blood pressure, oxygen saturation, respiratory rate, heart rate, pain intensity and verbal numerical rating scales, the extent of patient-controlled tramadol dose, nausea, and vomiting.
    RESULTS: There were 50 individuals in each group. Postoperative analgesic consumption and pain scores were higher in Group 1, and the first postoperative pain was felt earlier. Furthermore, in Group 1, preoperative carboxyhemoglobin levels and postoperative nausea were statistically higher before, after, and at the tenth minute after induction, whereas oxygen saturation was lower. The two groups had no statistical difference regarding intraoperative and postoperative vital signs. Postoperative analgesic consumption was not affected by age or gender.
    CONCLUSIONS: Smoking changes postoperative pain management, especially for this kind of operation, and these patients feel more pain and need more postoperative analgesic doses. Therefore, effective postoperative pain control should take account of smoking behavior, and analgesic doses may need to be adjusted for patients who smoke.
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  • 文章类型: Journal Article
    主要目的是确定与未消除相同区域相比,在管壁(CWU)胆脂瘤手术期间消除鼓膜区和乳突腔是否会降低胆脂瘤的复发率和残留率。次要目标是比较两种技术之间的术后听力结果。
    在三级转诊中心进行了一项回顾性队列研究。2015年1月至2020年3月在乌得勒支大学医学中心接受了CWU鼓膜乳状癌切除术治疗胆脂瘤伴或不伴骨闭塞的患者(≥18y),共纳入143只耳朵。中位随访时间分别为1.4(IQR1.1-2.2)和2.0年(IQR1.2-3.1)(p=0.013)。
    所有患者均接受CWU鼓膜乳状核切除术治疗胆脂瘤。对于73耳骨尘,Bonalive®或组合用于消除乳突和鼓膜上区域,其余的耳朵(n=70)没有消失。根据荷兰议定书,纳入的患者计划进行MRI扫描和弥散加权成像(DWI),手术后3年和5年,以检测复发或残留的胆脂瘤。
    主要结局指标是通过MRI-DWI和/或显微耳镜检查评估并通过显微耳镜检查和/或翻修手术确认的复发性和残余胆脂瘤。次要结果指标是术后听力。
    在此队列中,该组采用鼓膜切除术后的管壁切除骨性闭塞术(73耳,51.0%)的胆脂瘤复发(4.1%)和残留(6.8%)率显著低于无闭塞组(70耳,25.7%和20.0%,分别为;p<0.001)。两组术后骨传导阈值无显著差异(平均差异2.7dB,p=0.221)以及手术后6周的平均气-骨间隙闭合(非闭塞组为2.3dB,闭塞组为1.5dB,p=0.903)。
    根据我们的结果,管壁鼓膜切除术与骨闭塞是治疗的选择,因为与无闭塞组相比,复发和残留病率较低。骨消失技术似乎不会影响感知或传导的听力结果,因为这两组之间是相似的。
    UNASSIGNED: The primary objective was to determine whether obliteration of the epitympanic area and mastoid cavity during canal wall up (CWU) cholesteatoma surgery reduces the rate of recurrent and residual cholesteatoma compared to not obliterating the same area. The secondary objective was to compare postoperative hearing outcomes between both techniques.
    UNASSIGNED: A retrospective cohort study was conducted in a tertiary referral center. One-hundred-fourty-three ears were included of patients (≥18y) who underwent a CWU tympanomastoidectomy for cholesteatoma with or without bony obliteration between January 2015 and March 2020 in the University Medical Center Utrecht. The median follow-up was respectively 1.4 (IQR 1.1-2.2) vs. 2.0 years (IQR 1.2-3.1) (p = 0.013).
    UNASSIGNED: All patients underwent CWU tympanomastoidectomy for cholesteatoma. For 73 ears bone dust, Bonalive® or a combination was used for obliteration of the mastoid and epitympanic area, the rest of the ears (n = 70) were not obliterated. In accordance with the Dutch protocol, included patients are planned to undergo an MRI scan with diffusion-weighted imaging (DWI) one, three and five years after surgery to detect recurrent or residual cholesteatoma.
    UNASSIGNED: The primary outcome measure was recurrent and residual cholesteatoma as evaluated by MRI-DWI and/or micro-otoscopy and confirmed by micro-otoscopy and/or revision surgery. The secondary outcome measure was the postoperative hearing.
    UNASSIGNED: In this cohort, the group treated with canal wall up tympanomastoidectomy with subsequent bony obliteration (73 ears, 51.0%) had significantly lower recurrent (4.1%) and residual (6.8%) cholesteatoma rates than the group without obliteration (70 ears, 25.7% and 20.0%, respectively; p < 0.001). There was no significant difference between both groups in postoperative bone conduction thresholds (mean difference 2.7 dB, p = 0.221) as well as the mean air-bone gap closure 6 weeks after surgery (2.3 dB in the non-obliteration and 1.5 dB in the obliteration group, p = 0.903).
    UNASSIGNED: Based on our results, a canal wall up tympanomastoidectomy with bony obliteration is the treatment of choice, since the recurrent and residual disease rate is lower compared to the group without obliteration. The bony obliteration technique does not seem to affect the perceptive or conductive hearing results, as these are similar between both groups.
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  • 文章类型: Journal Article
    目的:评估鼓室乳状癌切除术与肠胃外抗生素治疗小儿慢性化脓性中耳炎(CSOM)无胆脂瘤的耳漏的疗效。
    方法:回顾性分析了在三级学术儿科医院接受耳漏治疗的221例患者,以评估鼓膜切除术与肠胃外抗生素治疗对耳漏消退的影响。纳入标准为0-18岁,之前用耳和/或口服抗生素治疗,鼓膜置管术治疗复发性中耳炎的既往史,耳漏病史,鼓膜切除术或胃肠外抗生素治疗,并在干预后至少1个月随访。比较了两种调整年龄的模式的解决时间,双侧耳部疾病状态,和合并症使用Cox比例风险模型。
    结果:58名儿童的83只耳朵符合纳入标准。最初接受鼓膜乳突切除术的耳朵症状消退时间(中位消退时间)明显短于9个月(95%置信区间:6.2-14.8)。48.5个月(CI9.4降低95%,p=0.006)。在多变量分析中,然而,只有双侧耳部疾病状态与症状缓解时间独立相关(风险比0.4,95%CI0.2-0.9,p=0.03).当比较鼓膜切除术与肠外抗生素治疗时,治疗相关并发症的发生率没有统计学上的显着差异(p=0.37)。
    结论:在调整年龄时,双侧耳部疾病状态,和合并症,当比较肠胃外抗生素治疗和鼓膜切除术时,症状缓解的时间似乎没有显着差异。在决定对保守治疗失败的CSOM患者的下一步管理时,应采用有关每种方法的风险和收益的知情讨论。
    OBJECTIVE: To evaluate the efficacy of tympanomastoidectomy versus parenteral antibiotic therapy for otorrhea as a result of chronic suppurative otitis media (CSOM) without cholesteatoma in the pediatric population.
    METHODS: A retrospective review of 221 patients treated for otorrhea at a tertiary academic pediatric hospital was performed to evaluate the impact of tympanomastoidectomy versus parenteral antibiotic therapy on resolution of otorrhea. Inclusion criteria were age 0-18 years, prior treatment with otic and/or oral antibiotic, prior history of tympanostomy tube placement for recurrent otitis media, history of otorrhea, treatment with tympanomastoidectomy or parenteral antibiotic therapy, and follow-up of at least 1 month after intervention. Time to resolution was compared between the two modalities adjusting for age, bilateral ear disease status, and comorbidities using a Cox proportional hazard model.
    RESULTS: Eighty-three ears from 58 children met the inclusion criteria. Ears that initially underwent tympanomastoidectomy had a significantly shorter time to resolution of symptoms (median time to resolution) 9 months (95 % confidence interval CI: 6.2-14.8) vs. 48.5 months (95 % lower CI 9.4, p = 0.006). On multivariate analysis, however, only bilateral ear disease status was independently associated with time to resolution of symptoms (hazard ratio 0.4, 95 % CI 0.2-0.9, p = 0.03). There was no statistically significant difference in the rate of treatment-related complications when comparing tympanomastoidectomy to parenteral antibiotic therapy (p = 0.37).
    CONCLUSIONS: When adjusting for age, bilateral ear disease status, and comorbidities, there does not appear to be a significant difference in time to resolution of symptoms when comparing parenteral antibiotic therapy to tympanomastoidectomy. An informed discussion regarding risks and benefits of each approach should be employed when deciding on the next step in management for patients with CSOM who have failed more conservative therapies.
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  • 文章类型: Journal Article
    慢性耳部手术后的听力结果包括复发,胆脂瘤的定位和范围,手术类型,骨成形术方法,但很少解释术中发现。本研究旨在分析术中发现对鼓膜乳突切除术后听力预测的影响。
    这是一项回顾性非随机队列研究,纳入101例通过鼓室乳突切除术治疗复发性慢性中耳炎的患者。病人的人口统计学,分析疾病复发的定位和围手术期听力结果。
    Logistic回归显示存在鼓室穿孔(p=0.036),听骨链损伤(p=0.006),与术后听力改善呈负相关。阁楼胆脂瘤与更好的术后听力相关(p=0.045)。存在鼓室穿孔(p=0.050),除了面周炎症(p=0.021)和小骨破坏(p=0.013)外,术后听力结果较差。多因素分析证实鼓室穿孔(p=0.040,F=4.401),和听骨链受累(p=0.025,F=5.249),是听力改善的一致负面预测因子,术后听力恶化与鼓室穿孔(p=0.038,F=4.465)和面神经裂开(p=0.045,F=4.160)有关。
    术后翻修鼓膜切除术听力结果的比较显示,气骨间隙值显著降低,主要在低频和中频。高频下的术后听力结果不受翻修手术的影响。
    UNASSIGNED: Hearing results after chronic ear surgery encompass recurrence, localization and extent of cholesteatoma, type of surgery, ossiculoplasty methods, but rarely interpret intraoperative findings. This study aimed to analyze the impact of intraoperative findings in revision tympanomastoidectomy in predicting postoperative hearing.
    UNASSIGNED: This was a retrospective non-randomized cohort of 101 patients treated for recurrent chronic otitis media by tympanomastoidectomy. The patients\' demographics, localizations of disease recurrence and perioperative hearing results were analyzed.
    UNASSIGNED: Logistic regression showed that presence of tympanic perforation (p=0.036), ossicular chain damage (p=0.006), were negatively associated with improved hearing postoperatively. Attic cholesteatoma was associated with better postoperative hearing (p=0.045). Presence of tympanic perforation (p=0.050), alongside perifacial localization of imflammation (p=0.021) and ossicle destruction (p=0.013) were associated with worse postoperative hearing results. Multivariate analysis confirmed that tympanic perforation (p=0.040, F=4.401), and ossicular chain involvement (p=0.025, F=5.249), were consistent negative predictors of hearing improvement, while postoperative deterioration of hearing was associated with tympanic perforation (p=0.038, F=4.465) and facial nerve dehiscence (p=0.045, F=4.160).
    UNASSIGNED: Comparison of postoperative revision tympanomastoidectomy hearing outcomes revealed significant positive reductions in air-bone gap values, primarily at low and mid frequencies. Postoperative hearing results at high frequencies are not affected by revision surgery.
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  • 文章类型: Journal Article
    目的:我们旨在介绍坏死性外耳道炎(NOE)患者早期和长期随访的治疗方法及其合并症。
    方法:在2011年至2022年之间,30例诊断为NEO的患者,在颞骨计算机断层扫描中出现皮质骨侵蚀或小梁脱矿并接受至少6周抗菌治疗的患者被纳入研究.临床,患者的实验室和影像学检查结果,并对随访期间的合并症进行了分析。在磁共振成像上,NOE从枕骨裂处进一步延伸被接受为内侧颅底(MSB)受累。
    结果:30名患者,(8个女人,22人,平均年龄66.2±1.7),NOE患者随访36.4±29.6个月。死亡率为23.33%,平均生存时间为12.37±11.35个月。重复培养显示5名患者(20%)的新病原体或第二病原体。在4例和12例患者中观察到严重和深度的感觉神经性听力损失(SNHL),分别。在随访期间,6名存活的SNHL严重患者中有3名出现骨化性迷路炎。慢性病贫血(CDA)(66.66%),脑血管疾病(CVD)(43.33%),慢性肾功能衰竭(CRF)(30%),视网膜病变(26.66%)是NOE患者最常见的合并症。颅神经麻痹(CNP)(P<0.001),SNHL(P<0.04),CDA(P<0.005),和死亡率(P<0.022)与MSB受累存在显著相关。
    结论:NOE是一种需要长期随访的疾病,导致严重的发病率,死亡率很高。MSB参与与CNP有关,SNHL和骨化性迷路炎。此外,CDA,CVD,CRF和视网膜病变是需要治疗的最常见的合并症。
    OBJECTIVE: We aimed to present the management of the patients with necrotizing otitis externa (NOE) and its comorbidities in early and long-term follow-up.
    METHODS: Between 2011 and 2022, 30 patients with the diagnose of NEO, who had cortical bone erosion or trabecular demineralization in temporal bone computed tomography and administered at least 6-week antimicrobial therapy were included in the study. Clinical, laboratory and imaging findings of patients, and comorbidities during follow-up were analysed. NOE extending further from the petro-occipital fissure on magnetic resonance imaging was accepted as medial skull base (MSB) involvement.
    RESULTS: 30 patients, (8 women, 22 men, mean age 66.2 ± 1.7), with NOE were followed 36.4 ± 29.6 months. The mortality rate was 23.33% and the mean survival time was 12.37 ± 11.35 months. Repeated cultures reveal a new or second pathogen in 5 patients (20%). Severe and profound sensorineural hearing loss (SNHL) were observed in 4 and 12 patients, respectively. Labyrinthitis ossificans emerged in 3 of 6 surviving patients with profound SNHL during follow-up. Chronic disease anemia (CDA) (66.66%), cerebrovascular disease (CVD) (43.33%), chronic renal failure (CRF) (30%), and retinopathy (26.66%) were the most frequent comorbidities in patients with NOE. Cranial nerve paralysis (CNP) (P < 0.001), SNHL (P < 0.04), CDA (P < 0.005), and mortality (P < 0.022) were significantly associated with the presence of MSB involvement.
    CONCLUSIONS: NOE is a disease that requires long-term follow-up, causes severe morbidity, and has a high mortality rate. MSB involvement is associated with CNP, SNHL and labyrinthitis ossificans. Moreover, CDA, CVD, CRF and retinopathy are the most common comorbitidies needed to be managed.
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  • 文章类型: Journal Article
    目的:与显微外科手术相比,相对较新的经腔内窥镜耳外科手术(TEES)具有更好的可视化和无外部切口的优点,但也有单手操作的缺点。我们的研究旨在比较通过TESS进行骨成形术后的听力测量结果与显微外科手术的结果。
    方法:分析了2009年至2018年由一名耳科医生接受骨成形术的157例连续患者的前瞻性审计数据。TEES于2014年在该部门引入;因此,在此之前的所有患者都接受了显微外科手术。患者按手术方法分类,TEES,或显微外科手术。术后3个月和12个月记录听力学结果,并与术前水平进行比较。其他变量包括骨的状况和使用的重建材料。
    结果:157例中,50例TEES和107例显微外科手术(81例仅显微镜和27例结合内窥镜)。AC(术前43.4dB,术后36.2dB),BC(术前20.3dB,术后17.6dB),和ABG(术前21.8dB,术后16.7dB)在总队列中。两组的ABG均优于20dB;TEES为72%,显微镜组73%,并无显著差异。与3个月相比,12个月时的听力没有变化。根据stapes骨状况没有发现统计学上的显着差异,用于骨成形术的材料类型,或者鼓膜移植.
    结论:TEES在骨成形术中与显微外科手术一样安全有效,疼痛和发病率可能要小得多。
    OBJECTIVE: The relatively new technique of trans-canal endoscopic ear surgery (TEES) when compared to microsurgery for ossiculoplasty has advantages of better visualization and no external incision but also has the disadvantage of being a one-handed procedure. Our study aimed to compare audiometric outcomes following ossiculoplasty performed via TESS with results of microsurgery.
    METHODS: Data from a prospective audit of 157 consecutive patients who underwent ossiculoplasty by a single otologist from 2009 to 2018 was analyzed. TEES was introduced in the department in 2014; therefore, all patients before this period underwent microsurgery. Patients were classified by surgical approach, TEES, or microsurgery. Audiological outcomes were recorded at 3 and 12 months postoperatively and compared to pre-operative levels. Other variables included were the condition of stapes and reconstruction material used.
    RESULTS: Of the 157 cases, 50 were TEES and 107 were microsurgery (81 microscope only and 27 combined with endoscope). There was statistically significant improvement (p < 0.001) in AC (43.4 dB pre-operatively, 36.2 dB postoperatively), BC (20.3 dB pre-operatively, 17.6 dB postoperatively), and ABG (21.8 dB pre-operatively, 16.7 dB postoperatively) in the total cohort. Both groups achieved an ABG better than 20 dB; 72% in TEES, 73% in the microscopic group, and there was no significant difference. There was no change in hearing at 12 months when compared to 3 months. No statistically significant difference was noted based on stapes condition, type of material used for ossiculoplasty, or tympanic membrane graft.
    CONCLUSIONS: TEES is safe and as effective as microsurgery in ossiculoplasty with possibly much less pain and morbidity.
    METHODS:
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  • 文章类型: Journal Article
    目的:描述鼓室成形术和鼓室乳突切除术后的疼痛特征,以及疼痛严重程度与手术各个技术方面的相关性。
    方法:我们在2018年7月7日至2019年7月7日在三级转诊中心对接受耳部手术的患者进行了一项前瞻性队列研究。患者填写疼痛问卷,在术前和术后第1-4、21和49天(POD)的视觉模拟量表上对疼痛强度进行评分。反应与临床和手术数据相关,包括手术技术相关的细节。
    结果:62名患者参与了这项研究(男性27名,女性35名,平均年龄41.1±20.02岁[范围18-68])。术前VAS中位数为5,POD1为6,POD3为5,3周和9周为1。术前问卷标准化为10分,为4.5(32/70),POD1为5.1,POD3为4.7,3周为0.85,9周为0.85。术后疼痛增加的预测因素是年龄较小,合并症的存在,翻修手术,术前头晕或耳鸣及术后耳鸣。疼痛减轻的预测因素是吸烟和增加乳突切除术。没有与手术技术相关的因素(例如,手术方法,重建类型,特定外科医生)显着影响问卷回答或疼痛VAS强度评分。
    结论:我们证明年龄较小,合并症的存在,翻修手术,术前头晕或耳鸣和术后耳鸣是鼓室成形术和鼓膜切除术后疼痛增加的预测因素,而乳突切除术是疼痛减轻的预测指标。
    OBJECTIVE: To characterize postoperative pain after tympanoplasty and tympanomastoidectomy and correlate between pain severity and various technical aspects of the surgery.
    METHODS: We carried out a prospective cohort study of patients undergoing ear surgery in a tertiary referral center between 7/2018 and 7/2019. Patients filled in a pain questionnaire and scored pain intensity on a visual analog scale preoperatively and on postoperative days (POD) 1-4, 21, and 49. The responses were correlated with clinical and operative data, including surgical technique-related details.
    RESULTS: Sixty-two patients participated in the study (27 males and 35 females, average age 41.1 ± 20.02 years [range 18-68]). The median preoperative VAS was 5, followed by 6 on POD1, 5 on POD3, and 1 at 3 and 9 weeks. The preoperative questionnaire score normalized to 10 was 4.5 (32/70), 5.1 on POD1, 4.7 on POD3, 0.85 at 3 weeks and 0.85 at 9 weeks. The predictive factors for increased postoperative pain were younger age, the presence of a comorbidity, revision surgery, preoperative dizziness or tinnitus and postoperative tinnitus. The predictive factors for decreased pain were smoking and the addition of a mastoidectomy. None of the factors related to the surgical technique (e.g., surgical approaches, type of reconstruction, specific surgeon) significantly affected the questionnaire responses or the pain VAS intensity scores.
    CONCLUSIONS: We demonstrated that younger age, the presence of a comorbidity, revision surgery, preoperative dizziness or tinnitus and postoperative tinnitus were predictors of increased pain after tympanoplasty and tympanomastoidectomy, while the inclusion of a mastoidectomy was a predictor of decreased pain.
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  • 文章类型: Journal Article
    BACKGROUND: The main surgical techniques for the treatment of chronic otitis media so far, all have their characteristic advantages and disadvantages. Otolaryngologists have been trying to find an ideal surgical method for chronic otitis media.
    OBJECTIVE: To study and evaluate the outcome of partial canal wall preserved tympanomastoidectomy (PCM) for the treatment of chronic otitis media.
    METHODS: Thirty-nine patients were randomly divided into two groups. Twenty patients underwent PCM and 19 underwent canal wall down tympanomastoidectomy (CWD). All patients had a follow-up period of 5 years.
    RESULTS: The mean time of healing was 6 weeks in the PCM group and 8 weeks in the CWD group. The cavities in the PCM group were normal or slightly larger than the normal external auditory canal. The patients required cavity cleaning less than once per year in the PCM group and 3-4 times per year in the CWD group. One patient in the PCM group developed a recurrent cholesteatoma located in the attic.
    CONCLUSIONS: The PCM technique showed a low-recurrence rate and good hearing outcomes. Patients had normal or slightly enlarged postoperative external auditory canal. Therefore, PCM is a useful technique for chronic otitis media.
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  • 文章类型: Case Reports
    BACKGROUND: We report a case of unilateral progressive primary hypertrophic lichen planus of the external auditory canal requiring several surgical interventions to deal with constant pruritus, otorrhoea, stenosis and conductive hearing loss.
    METHODS: A 58-year-old woman was initially treated with meatoplasty for suspected chronic obliterating otitis externa. She remained symptom-free for 5 years, before the disease recurred, affecting other body surfaces as well. Otorrhoea, conductive hearing loss and pruritus worsened, and a canal wall down tympanomastoidectomy was performed, removing the skin of the external auditory canal and the tympanic membrane completely. Lichen planus was confirmed histopathologically.
    CONCLUSIONS: Very few surgical results have been published on stenosis of the external auditory canal caused by lichen planus. Complete medial external auditory canal skin elevation and removal with postoperative split-skin grafting is advised for initial treatment. We discuss treatment options and surgical outcome after initial surgical failure.
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  • DOI:
    文章类型: Journal Article
    BACKGROUND: Chronic otitis media (COM) has been broadly classified into mucosal and squamous subtypes. COM types are associated with erosion of the ossicular chain. The aim of the present study was to correlate the type of COM, the site of perforation/retraction, and the type of disease pathology with the pattern and degree of ossicular chain necrosis.
    METHODS: A prospective cross-sectional study was performed in 76 cases of COM, who were subjected to tympanomastoidectomy. Pre-operative findings were compared with per-operative ossicular chain status and pathology.
    RESULTS: Incus was found to be the most vulnerable ossicle for erosion, followed by malleus and suprastructure of stapes. The pattern of multiple ossicle involvement was more common. Ossicular chain erosion was more common in squamous COM than mucosal COM (X2=66.25; P=0.0001) and in the presence of cholesteatoma and granulations. Ossicular necrosis was most common in squamous disease with cholesteatoma, followed by squamous disease with granulations, mucosal disease with granulations, and inactive mucosal disease in that order.
    CONCLUSIONS: The degree of ossicular necrosis has a positive correlation with the type of disease pathology, being higher in squamous disease than in mucosal disease. The pattern of ossicular necrosis varies with the site of origin of the disease and the pattern of spread of cholesteatoma, being variable for pars tensa and pars flaccida squamous disease.
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