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OBJECTIVES: This study aims to assess possible wound complications of tympanoplasty and tympanomastoidectomy with or without postoperative mastoid dressing. PATIENTS AND METHODS: A total of 37 patients (22 females, 15 males; mean age: 23.88 years; range 9 to 64 years) who underwent middle ear or mastoid operations via postauricular incision were included in this prospective, randomized, controlled study. The patients were divided into two groups as having mastoid dressing (n=17) and nonmastoid dressing (n=20). Through a close follow-up, postoperative complications were noted and distance from mastoid scalp and auricular rim was measured. RESULTS: The mean mastoid-helix distance of non-mastoid dressing group was found 17.2 mm in operated and 16.9 mm in non-operated ears. The mean mastoid-helix distance of mastoid dressing group was 15.53 mm in operated ears and 16.47 mm in non-operated ears. Skin erythema was seen in a patient. There was no statistically significant increase in mastoid-helix distance (p>0.05). CONCLUSION: Tympanoplasty with or without mastoidectomy does not cause postoperative complication or protrusion of the ear, even if no mastoid dressing is used. Our study results suggest no benefit of mastoid dressing after tympanoplasty with or without mastoidectomy.
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Vendajes , Apófisis Mastoides/cirugía , Complicaciones Posoperatorias/etiología , Timpanoplastia/métodos , Adolescente , Adulto , Anciano , Niño , Pabellón Auricular/patología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Resultado del Tratamiento , Adulto JovenRESUMEN
BACKGROUND: There may be confusion about which canal is involved in patients with benign paroxysmal positional vertigo (BPPV), especially with those that have subtle findings. The study aimed to determine if video head impulse testing may be used in such patients as a diagnostic tool. Symptom scoring and treatment efficiency in BPPV are essential parts of the process. Therefore, inventories like "Dizziness Handicap Inventory" may be useful in this regard. METHODS: Patients with posterior and lateral canal BPPV were included. Video head impulse testing was performed prior to treatment and 1 week after treatment. Vestibuloocular reflex (VOR) gains were noted and compared to the opposite side. The presence of correction saccades was noted as well. Also, pretreatment and posttreatment Dizziness Handicap Inventory scores were compared. RESULTS: Fifty-seven patients were diagnosed with posterior canal BPPV, and sixteen were with horizontal canal BPPV. In patients with posterior canal BPPV, there was no difference between the involved canal VOR gains and the other canals on the same side (P=.639). The involved horizontal canal did not differ from the opposite horizontal canal. Patients with lateral canal BPPV show more significant improvement after treatment compared to patients with posterior canal BPPV. CONCLUSION: Video head impulse testing may not be used to estimate the involved canal in BPPV; however, it may be used to evaluate the efficiency of the treatment, especially in the lateral canal.
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Vértigo Posicional Paroxístico Benigno , Prueba de Impulso Cefálico , Reflejo Vestibuloocular , Canales Semicirculares , Grabación en Video , Humanos , Prueba de Impulso Cefálico/métodos , Vértigo Posicional Paroxístico Benigno/diagnóstico , Vértigo Posicional Paroxístico Benigno/fisiopatología , Vértigo Posicional Paroxístico Benigno/terapia , Masculino , Femenino , Persona de Mediana Edad , Reflejo Vestibuloocular/fisiología , Anciano , Grabación en Video/métodos , Adulto , Canales Semicirculares/fisiopatología , Movimientos Sacádicos/fisiologíaRESUMEN
OBJECTIVE: The aim of the present study was to evaluate the outcomes of combined oral steroid, nasal steroid and surgical therapy in patients with impaired olfaction due to nasal polyposis. PATIENTS AND METHODS: This prospective observational study was undertaken in the otolaryngology department of a university hospital. During the study, 19 nasal polyposis patients were evaluated three times, i.e. before oral steroid therapy, before surgery (after steroid therapy) and after surgery, with smell identification tests, acoustic rhinometry, subjective smell score, endoscopic grading and a visual analog scale for nasal obstruction. RESULTS: All subjective and objective measures were significantly improved after medical and surgical therapy (p < 0.01). The median smell identification score improved from 2 (interquartile range 0-4) to 5 (interquartile range 4-7) after combined therapy. Smell identification scores were found to be modestly correlated with all other examination findings. CONCLUSION: Combined therapy seems efficient in improving smell identification scores of nasal polyposis patients.
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Pólipos Nasales/tratamiento farmacológico , Pólipos Nasales/cirugía , Trastornos del Olfato/tratamiento farmacológico , Trastornos del Olfato/cirugía , Olfato/fisiología , Esteroides/uso terapéutico , Administración Oral , Adulto , Anciano , Terapia Combinada , Endoscopía/métodos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Trastornos del Olfato/diagnóstico , Cuidados Preoperatorios , Estudios Prospectivos , Recuperación de la Función/efectos de los fármacos , Recuperación de la Función/fisiología , Rinometría Acústica , Olfato/efectos de los fármacos , Adulto JovenRESUMEN
Sclerosing polycystic adenosis (SPA) frequently presents as an isolated process, however it may involve adjacent benign salivary gland neoplasia. In this article, we present a 77-year-old female case with a 10-year history of a slow-growing mass of the left parotid gland of SPA presenting with a Warthin tumor. The patient underwent left superficial parotidectomy. The histopathological examination revealed SPA and multifocal Warthin tumor.
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Adenolinfoma/patología , Neoplasias de la Parótida/patología , Adenolinfoma/cirugía , Anciano , Biopsia con Aguja Fina , Femenino , Humanos , Glándula Parótida/patología , Glándula Parótida/cirugía , Neoplasias de la Parótida/cirugía , Esclerosis , Tomografía Computarizada por Rayos XRESUMEN
The aim of the present study was to assess the effect of smell tests experience and education during residency or in general practice on ENT specialists' attitudes toward smell disorders in concern of their management strategies. Methodology included a voluntary and anonymous self-administered questionnaire survey conducted in Turkey and responses from 218 questionnaires were pooled and evaluated. Results stated that only 7.3% of the respondents reported currently using smell tests in their practice, and most of those had observed a smell test during their residency (p < 0.05) and received education on the olfactory disorders (p < 0.01). Furthermore, these doctors were more likely to manage patients with no assistance from other doctors or institutions (p < 0.01). Moreover, the doctors with more knowledge of smell disorders rated the symptom of smell loss as more important. We concluded that doctors who had training in smell disorders were confident in diagnosing and treating patients with smell disorders and were more likely to perform smell tests and assume all responsibility for diagnostic and treatment procedures. These results demonstrate the importance of both the residency and continuing medical education in training doctors who are confident to treat smell disorders.
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Actitud del Personal de Salud , Trastornos del Olfato/diagnóstico , Otolaringología , Recolección de Datos , Escolaridad , Humanos , Trastornos del Olfato/terapia , TurquíaRESUMEN
BACKGROUND: Epistaxis is an important emergency that can sometimes be life threatening without effective intervention. Persistent and recurrent bleeding can lead to aspiration, hypotension, hypoxia, or even severe and mortal cardiovascular complications. Providing prompt hemostasis is important, and the hemostatic method used must be easily and locally applicable, efficient, and inexpensive. OBJECTIVE: The aim of this study was to assess the hemostatic efficacy of Ankaferd Blood Stopper (ABS) in an experimental epistaxis model and to determine the histopathologic alterations with topical ABS application. METHODS: Twenty-eight New Zealand rabbits were evaluated in 4 study groups. Topical ABS, gelatin foam (GF), adrenalin + lidocaine (AL), and serum physiologic as negative control (C) were applied to the animals for controlling epistaxis. The bleeding was generated with a standard mucosal incision in all groups. Cotton pieces soaked with ABS, AL, C, and GF were applied to the nasal bleeding area. Time of hemostasis was recorded. Tissue samples were obtained after hemostasis for histopathologic examination. The samples were stained with hematoxylin and eosin (HE) and phosphotungstic acid hematoxylin (PTAH) and were examined under a light microscope. In this experimental study, the observers were blind to ABS, AL, and C but not to GF, because of its solid nature. RESULTS: Median durations required for hemostasis in ABS, AL, GF, and C groups were recorded as 30, 90, 90, and 210 seconds, respectively. The time until termination of bleeding in the ABS group was significantly shorter than that in the AL, GF, and C groups (P = 0.002, P = 0.002, and P = 0.001, respectively). On histopathologic evaluation, after staining with HE, minimal fibrin at the incision edges and a few extravasated erythrocytes were observed in the C, AL, and GF groups. In the ABS group, a dark amorphous material surrounded by fibrin, filling the space between the edges of incisions, was noticed. Fibrin was determined in the C, GF, and AL groups with PTAH stain and in the positive control group. In the ABS group, it was observed that the amorphous substance surrounded by fibrin seen in the HE sections was not stained with PTAH. CONCLUSIONS: Topical nasal ABS application controlled epistaxis faster than C, GF, and AL in this animal bleeding model. The bleeding model used here might fail to replicate the type of injury that would be likely to result in life-threatening bleeding in humans, which should be considered a limitation of the present study. The histopathologic findings in the nasal incision area suggest that ABS might affect global hemostasis by inducing a unique protein network formation, potentially representing a different mechanism of action among conventional antihemorrhagic applications.
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OBJECTIVES: In this study, we assessed the hearing aid usage ratios and durations, patient satisfaction and the probable causes of disuse if they are not used. PATIENTS AND METHODS: A questionnaire with 16 questions was applied to the patients who were prescribed hearing aids in our clinic between January 2007 and December 2009. A total of 517 patients were called by phone. Hundred and seventy-nine of the patients (75 females, 104 males; mean age 60±23 years; range 17 to 94 years) participated in the trial. Hearing aid usage ratios and patients' satisfaction were determined and the factors influencing usage were statistically investigated. RESULTS: Hundred and forty-two of the patients used their hearing aids regularly and 37 of the patients either used their aids rarely or never used them. The most common cause reported for disuse was the frequent noise coming from the hearing aid. CONCLUSION: Failure to explain the usage of the hearing aids to the patients and age over 70 years have a statistically significant negative effect on the duration of hearing aid use and patient satisfaction.
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Audífonos/estadística & datos numéricos , Satisfacción del Paciente/estadística & datos numéricos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Encuestas y Cuestionarios , Turquía , Adulto JovenRESUMEN
Angiomyolipoma is a mesenchymal neoplasm containing adipose tissue, blood vessels, and smooth muscle fibers. Arising most frequently in the kidney, the tumor may exceptionally be at the head and neck region. The literature has 1 single published report of laryngeal angiomyolipoma, which was resected through laryngofissure. In this study, a 58-year-old man presented with laryngeal angiomyolipoma with swallowing discomfort. The tumor was removed by an endolaryngeal approach.
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Angiomiolipoma/diagnóstico , Neoplasias Laríngeas/diagnóstico , Trastornos de Deglución/diagnóstico , Estudios de Seguimiento , Humanos , Laringoscopía , Masculino , Microcirugia , Persona de Mediana Edad , Tomografía Computarizada por Rayos XRESUMEN
We reported a case of basal cell carcinoma on the flap which was initially treated with excision of squamous cell carcinoma and forehead flap reconstruction of nasal dorsum. After 8 years of reconstruction, basal cell carcinoma was developed on the flap surface. This may be due to a recurrence, or a second primary tumor, or an activation of a dormant tumor with perturbing factors like surgery. In this report, our purpose was to discuss the possible etiopathogenesis, most appropriate diagnostic procedures, and treatment protocol for a carcinoma of the flap which has been used to reconstruct the previous cutaneous cancer.
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Carcinoma Basocelular/patología , Carcinoma de Células Escamosas/cirugía , Frente/patología , Neoplasias Primarias Secundarias/patología , Neoplasias Nasales/cirugía , Neoplasias Cutáneas/patología , Colgajos Quirúrgicos/patología , Adulto , Estudios de Seguimiento , Humanos , Masculino , Melanoma/cirugía , Neoplasias de la Parótida/cirugía , Neoplasias Cutáneas/cirugíaRESUMEN
OBJECTIVES: Comprehensive examination of the internal nasal valve (INV) using objective methods. STUDY DESIGN AND SETTING: In this prospective study, 248 nasal cavities were examined by nasal endoscopy, acoustic rhinometry (ARM), and rhinomanometry (RMM). RESULTS: Endoscopic examination allowed to suggest a novel classification of INV: convex, concave, sharp angle, blunt angle, twisted caudal border, and angle occupied by the septal body. The INV angle occupied with septal body type was found to have increased nasal resistances compared with the sharp-angled internal nasal valve type (P < 0.05). Convex, concave, and sharp-angle types of INV angles were found different (P < 0.01). CONCLUSIONS: INV should be examined objectively before any INV surgery. A novel description of the INV configurations and their effects on nasal respiration found in this study may increase our understanding and lead surgical approaches more adequately. A surgical attempt to augment INV angle value may impact positively on nasal resistance. EBM RATING: C-4.
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Cavidad Nasal/anatomía & histología , Tabique Nasal/anatomía & histología , Adolescente , Adulto , Pesos y Medidas Corporales , Endoscopía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Valores de Referencia , Rinomanometría , Rinometría AcústicaRESUMEN
BACKGROUND: The aim of this study was to evaluate the effect of nasal septal deviation (NSD) on ethmoid cell volume and to determine whether there was any correlation between NSD grade and ethmoid cell volume. METHODS: Forty computerized tomography (CT) scans from patients with rhinosinusitis symptoms with NSD were evaluated. Septal deviations were classified into three groups according to the degree of deviation on CT. Ethmoid cell volumes were measured and the relationship between NSD and ethmoid cell volume was investigated. RESULTS: There was a moderate but significant negative correlation between the septal deviation angle and the percentage of the ethmoid cell volumes (p = 0.001, r = -0.5152, r2 = 0.2654). Total ethmoid cell volume on the ipsilateral side compared with the contralateral side was found to decrease as the degree of NSD increased. CONCLUSIONS: Nasal septal deviation affects the total ethmoid cell volume of the nasal cavity. The results of our study underline the role of ethmoid cell volume in the compensation mechanism equalizing the nasal cavity airflow changes due to NSD.
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Senos Etmoidales/patología , Tabique Nasal/anomalías , Rinitis/patología , Sinusitis/patología , Adulto , Anciano , Tamaño de la Célula , Senos Etmoidales/diagnóstico por imagen , Femenino , Humanos , Masculino , Persona de Mediana Edad , Cavidad Nasal , Tabique Nasal/diagnóstico por imagen , Tabique Nasal/cirugía , Estudios Prospectivos , Rinitis/diagnóstico por imagen , Rinitis/cirugía , Índice de Severidad de la Enfermedad , Sinusitis/diagnóstico por imagen , Sinusitis/cirugía , Tomografía Computarizada por Rayos X/métodosRESUMEN
Surgical treatment of eustachian tube dysfunction is still challenging. Placement of a transtympanic ventilation tube may not be successful and may require multiple applications. We presented a 47-year-old male patient with chronic recurrent otitis media with effusion and retraction due to eustachian tube dysfunction, in whom the number of previous transtympanic tube insertions amounted to 18. He underwent laser assisted eustachian tuboplasty in both ears with endoscopic guidance under general anesthesia. The mucosal, submucosal, and partially the cartilaginous tissues in the posterior pillow of the nasopharyngeal orifice of the eustachian tube were ablated by Nd:YAG and holmium:YAG laser. Following surgery, air conduction thresholds decreased from 37 dB to 22 dB, and from 38 dB to 33 dB for the right and left ears, respectively. The preoperative tympanogram curve, which was of type B for both ears was found as type C-1 on the right side, and type C-2 on the left. Limited improvement seen in the left ear was ascribed to insufficient ablation of the posterior pillow of the eustachian tube. No complications were encountered within a follow-up of 12 months.
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Trompa Auditiva/cirugía , Ventilación del Oído Medio/efectos adversos , Otitis Media con Derrame/diagnóstico , Diagnóstico Diferencial , Endoscopía , Humanos , Terapia por Láser , Masculino , Persona de Mediana Edad , Otitis Media con Derrame/etiología , Otitis Media con Derrame/patología , Otitis Media con Derrame/cirugía , Procedimientos Quirúrgicos Otológicos , Complicaciones PosoperatoriasRESUMEN
OBJECTIVE: Our study was planned to get the views of residents about the Otorhinolaryngology (ORL) education process and to enlighten the studies to make this process more effective. METHODS: A questionnaire was sent to the residents who were still in the residency program in all education clinics via "Google Drive". Seventy-four of 354 residents responded and the answers were evaluated electronically. RESULTS: Fifty residents (67.56%) gave an affirmative answer to the question about the use of "Resident Log Book" and no difference was seen among the clinics. While 9 residents (12.16%) were reporting that they did not read any scientific papers, 43 (58.1%) reported they read less than three per month. Forty-one residents thougt that they were having a good and sufficient education. Seventeen residents (51.51%) who thought they were not having a sufficient education reported that the education period should be longer. When they were wanted to evaluate the education process, while 66 of them (89.18%) said "Exhausting", 52 (70.27%) said "Stressful", it was seen that the ones who said "Instructive" and "Rewarding" were 26 (35.13%) and 17 (22.97%) respectively. Further, 43 of 48 residents (89.58%) who were over the third year of their residency program indicated that they were unable to perform at least one procedure listed in the questionnaire after finishing their education. CONCLUSION: This study is important because it is the first study about the opinion of ORL residents and will help determine the current status in Turkey. This study will be useful for the preparation of educational programs and guides in the future.
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An animal study was realized to investigate the possible beneficial effect of EGb 761 as an antioxidant agent on amikacin ototoxicity by measuring distortion product otoacoustic emissions (DPOAEs). Twenty-eight adult rats were grouped equally as follows. GROUP AMIKACIN: rats received amikacin 600 mg/kg/day intramuscularly between postnatal days (PND) 30 and PND44. Group amikacin/EGb 761: rats received amikacin 600 mg/kg/day intramuscularly between PND30 and PND44 and EGb 761 100 mg/kg/day orally between PND30 and PND50. Group EGb 761: rats received equivolume saline intramuscularly between PND30 and PND44 and EGb 761 100 mg/kg/day orally between PND30 and PND50. NO TREATMENT GROUP: rats received nothing. Group amikacin was found to be affected only on the last measurement day of study (PND57). The frequencies greater than 2002 Hz were significantly reduced compared with the amplitudes of PND30 (P<0.05). Group amikacin/EGb 761 was most and earliest affected by amikacin-induced ototoxicity. DPOAE amplitudes were found in this group to be decreased at 2-6 kHz starting on PND50. The results of Group EGb 761 and No treatment group were not significantly changed. For the DPOAE input/output amplitude thresholds, Group amikacin (P<0.05) and Group amikacin/EGb 761 (P<0.01) had significantly elevated thresholds on PND57, except at 5 kHz for Group amikacin (P=0,06). According to the results of the study, EGb 761 may be regarded as a facilitating drug for the development of amikacin ototoxicity. The results of the present study may warn against concomitant use of aminoglycosides, specifically amikacin, with EGb 761.
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Amicacina/toxicidad , Antibacterianos/toxicidad , Oído Interno/efectos de los fármacos , Ginkgo biloba/toxicidad , Amicacina/administración & dosificación , Animales , Antibacterianos/administración & dosificación , Antioxidantes/administración & dosificación , Antioxidantes/toxicidad , Cóclea/efectos de los fármacos , Sinergismo Farmacológico , Emisiones Otoacústicas Espontáneas/efectos de los fármacos , Extractos Vegetales/administración & dosificación , Extractos Vegetales/toxicidad , Ratas , Ratas Sprague-Dawley , Vestíbulo del Laberinto/efectos de los fármacosRESUMEN
PURPOSE OF REVIEW: Since the first description of nitric oxide in the exhaled breath of humans by Gustafsson et al., there has been enormous interest in the study of nitric oxide and its role in the nose and paranasal sinuses. The aim of this review is to present the current knowledge about nasal NO: its physiology, novel methods of detection and measurement, and implications in sinonasal disease, focusing on the recent data from the literature. RECENT FINDINGS: Nitric oxide production is known to be produced in the nose at the apical tip of the ciliated respiratory mucosa. A new study has localized nitric oxide production in the pericytes and osteocytes of nasal turbinates. Studies have also discovered the efficacy of offline measurement techniques showing high correlation between standard online measurements with offline techniques. In an interesting study examining the influence of maxillary ostium size and nasal nitric oxide levels, decreased nitric oxide levels found with larger size ostia may eventually influence our approach to sinus surgery. SUMMARY: Nasal nitric oxide has been an ever-increasing topic of interest to both the allergist and the head and neck surgeon. The recent advances in the study of nasal nitric oxide as it relates to sinonasal disease and nasal physiology are discussed and important new findings are highlighted.
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Pruebas Respiratorias/métodos , Óxido Nítrico/fisiología , Enfermedades de los Senos Paranasales/fisiopatología , Sistema Respiratorio/metabolismo , Humanos , Enfermedades de los Senos Paranasales/metabolismo , Reproducibilidad de los ResultadosRESUMEN
BACKGROUND: As a consequence of removal of the nasal hump, the upper lateral cartilages are separated from the septal cartilage in reductive rhinoplasty. A decrease in the nasal airway cross-sectional area and collapse of the internal nasal valve (INV) are inevitable unless additional surgical measures are taken. OBJECTIVE: To determine the efficacy of the horizontal mattress bending suture in treating patients with nasal valve collapse. METHODS: Each upper lateral cartilage was separately bent to a certain degree with a horizontal mattress suture following nasal dorsum reduction in the external septorhinoplasty as a preventive or corrective measure for the INV stenosis. The efficacy of this suture was assessed in 28 patients who presented with tension nose by comparing the INV angles preoperatively and 12 months postoperatively, as determined photographically by means of a rigid nasal endoscope. RESULTS: The mean +/- SD preoperative INV angle was calculated as 9.1 degrees +/- 4.2 degrees (range, 0 degrees -18.3 degrees ). The mean postoperative INV angle was increased to 25.3 degrees +/- 3.8 degrees (range, 18.4 degrees -34.5 degrees ) (P<.001). CONCLUSIONS: This method reconstitutes the normal anatomy of the INV, reestablishes stiffness or resistance of the nasal side walls so that they do not bend inwardly with inspiration, improves the airflow at this area, and avoids postoperative nasal valve stenosis in functional-cosmetic rhinoplasty cases that require considerable nasal hump reduction.
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Cartílago/cirugía , Rinoplastia/métodos , Técnicas de Sutura , Adolescente , Adulto , Cartílago/patología , Femenino , Humanos , Masculino , Obstrucción Nasal/etiología , Tabique Nasal/patología , Tabique Nasal/cirugía , Reoperación , Rinoplastia/efectos adversosRESUMEN
The widespread use of mobile telephones has given rise to concern about the potential influences of electromagnetic fields (EMFs) on human health. Anatomically, the ear is in close proximity to the mobile telephone during use. Hearing loss due to mobile telephone use has not been described in the medical literature; however, if there is a subtle cochlear involvement, it might be detected by means of changes in evoked otoacoustic emissions (OAEs). Thirty volunteers with normal hearing were exposed to mobile telephone EMFs for 10 min and evoked OAEs were measured before and after exposure. No measurable change in evoked OAEs was detected and none of the subjects reported a deterioration in hearing level. To the best of our knowledge, this is the first study on the effects of EMFs emitted by mobile telephones on hearing. It was concluded that a 10-min exposure to the EMF emitted from a mobile telephone had no effect on hearing, at least at outer ear, middle ear and cochlear levels.
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Teléfono Celular , Campos Electromagnéticos , Audición/fisiología , Adulto , Femenino , Pruebas Auditivas , Humanos , Masculino , Factores de TiempoRESUMEN
OBJECTIVE: Neuromuscular blockade (NMB) is administered as part of a general anesthetic in order to keep the patient immobilized during surgery and has been known to hinder intraoperative neuromonitorization. The aim of this study was to determine the effects of different levels of NMB on electrical stimulation thresholds of the facial nerve during otologic surgery. MATERIAL AND METHODS: Intraoperative facial nerve monitorization was performed in 29 patients with advanced middle ear disease. Electromyographic (EMG) responses were recorded by insertion of needle electrodes into the orbicularis oris and orbicularis oculi muscles. Minimal facial nerve stimulations causing EMG responses in the facial musculature were measured during full recovery from the effects of muscular relaxants and with 25%, 50%, 75% and 100% levels of NMB. These defined NMB levels were maintained by the administration of a drip infusion of atracurium and were assessed objectively by recording the hypothenar muscle action. RESULTS: All of the patients had detectable EMG responses of the facial musculature at the 50% and 75% levels of NMB in response to the electrical stimulation of the facial nerve. The corresponding mean stimulation thresholds were 0.10 +/- 0.08 and 0.11 +/- 0.09 mA, respectively. No responses were measured in 31% of the patients when the level of peripheral NMB was 100%. CONCLUSION: This study suggests that a regulated 50% level of peripheral NMB provides reliable intraoperative EMG monitoring of the facial musculature in response to electrical stimulation and adequate anesthesia, with full immobilization of the patient.
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Enfermedades del Oído/cirugía , Músculos Faciales/efectos de los fármacos , Nervio Facial/fisiología , Monitoreo Intraoperatorio/métodos , Bloqueo Neuromuscular/métodos , Procedimientos Quirúrgicos Otológicos/métodos , Adolescente , Adulto , Análisis de Varianza , Niño , Enfermedades del Oído/diagnóstico , Oído Medio/fisiopatología , Oído Medio/cirugía , Electromiografía/métodos , Músculos Faciales/fisiología , Nervio Facial/efectos de los fármacos , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Contracción Muscular/fisiología , Estudios Prospectivos , Sensibilidad y Especificidad , Resultado del TratamientoRESUMEN
BACKGROUND: Understanding of the anterior skull base anatomy is crucial to avoid intracranial violations during endoscopic surgery. The aims of this study were to define the normative data about cribriform plate depth and the relationship between this dimension and the measurements of the adjacent anatomical structures such as middle turbinate length, maximal vertical orbital height and distance between the ethmoid roof and the nasal floor. PATIENTS AND METHODS: Paranasal computerized tomographic scans of 136 healthy adults were included into the study. The cribriform plate depth compared to the ethmoid roof and the adjacent anatomical structures mentioned above were measured bilaterally. RESULTS: The maximal vertical orbital height was detected as the most constant anatomic measurement. We found the mean level difference between the ethmoid roof and the cribriform plate as 6.1 +/- 2.3 (range 1-12 mm) on the left side and 6.1 +/- 2.2 (1-15 mm) on the right side. The middle turbinate was significantly longer in the Keros Type I group than in the other groups (p<0.05). Furthermore, the distance between the ethmoid roof and the nasal floor was lowest in the Keros Type I group (p<0.01). The distance between the ethmoid roof and the nasal floor was statistically higher in Keros group 3 among all groups (p<0.01). The deeper the cribriform plate, the higher the nasal cavity. CONCLUSION: To the best of our knowledge, our study has a unique feature by including the data of the constant anatomical structures comparing with the cribriform plate depth. Since in the group with excessive cribriform plate depth, the middle turbinate was short, care should be taken especially during middle turbinate resections.
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Hueso Etmoides/anatomía & histología , Adolescente , Adulto , Anciano , Pesos y Medidas Corporales , Hueso Etmoides/diagnóstico por imagen , Femenino , Humanos , Masculino , Persona de Mediana Edad , Cavidad Nasal/anatomía & histología , Cavidad Nasal/diagnóstico por imagen , Órbita/anatomía & histología , Órbita/diagnóstico por imagen , Radiografía , Valores de Referencia , Cornetes Nasales/anatomía & histología , Cornetes Nasales/diagnóstico por imagenRESUMEN
Maxillary sinus hypoplasia (MSH) is an uncommonly encountered condition by otolaryngologists. The computerized tomography (CT) scans provide valuable data about the anatomic details of the paranasal sinuses. MSH may be misdiagnosed as an infection or a neoplasm of the maxillary sinuses. Variations of the other paranasal structures, especially the uncinate process associated with MSH were defined. MSH shows three distinct hypoplasia patterns. Type I MSH characteristics are mild hypoplasia of the maxillary sinus, normal uncinate process and a well-developed infundibular passage. Significant hypoplasia of the maxillary sinus, hypoplastic or absent uncinate process and absent or pathologic infundibular passage are seen in Type II MSH. Type III MSH is characterized by the absence of an uncinate process and cleft-like maxillary sinus hypoplasia. In this study a series of 18 patients with MSH were presented. Twelve cases of unilateral and 6 cases of bilateral maxillary antrum hypoplasia were evaluated and 13 MSH type I, 7 MSH type II and 4 MSH type III were detected. Three ethmomaxillary sinuses, an overpneumatized posterior ethmoid cell into the orbit and the maxillary sinus were determined. Our series showed that the uncinate process anomalies related to MSH may lead to inadvertent orbital complications and therefore should be kept in mind.