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Objective: To analyze the relationship between ABO blood groups and otoacoustic emissions in full-term newborns, including the occurrence of SOAE and the amplitudes of DPOAE. Method: A total of eighty normal hearing female neonates were included in the study, with equal number of participants in each of the ABO blood group. Measurements of SOAE and DPOAE were collected from both ears of all participants. Result: The blood group O subjects showed significantly fewer SOAE occurrences and lower DPOAE amplitudes at 793 Hz, 1 257 Hz and 1 587 Hz than subjects with other three blood groups both in the left and right ears. Conclusion: The full-term neonates with blood group O have lower SOAE occurrence than other three blood group individual. The blood group O individuals have the lowest amplitude at 793 Hz, 1 257 Hz and 1 587 Hz of both ears., Competing Interests: The authors of this article and the planning committee members and staff have no relevant financial relationships with commercial interests to disclose., (Copyright© by the Editorial Department of Journal of Clinical Otorhinolaryngology Head and Neck Surgery.)

Objective: To study the value of acelluar dermal matrix xenografts associated with conchoplasty in the open mastoidectomy. Method: One hundred and thirty-three cases of chronic otitis media undergoing open mastoidectomy and conchoplasty were enrolled in this study. The effects were analyzed and compared between 70 cases in plastic group repaired by acelluar dermal matrix xenografts and 63 cases in control group. Result: The epithelization time is 28.5d and the dry-ear time is 27.15 d in plastic group. In control group, they were 60.75d and 44.35d respectively. The difference had statistical significance Conclusion: The application of cattle acelluar dermal matrix xenograft associated with conchoplasty in the open mastoidectomy is beneficial to the recovery of the cavity which can shorten mastoid cavity epithelization time, promoting dry ear, reducing postoperative infection and granulation., Competing Interests: The authors of this article and the planning committee members and staff have no relevant financial relationships with commercial interests to disclose., (Copyright© by the Editorial Department of Journal of Clinical Otorhinolaryngology Head and Neck Surgery.)

Objective: To investigate the clinical characteristics, diagnostic methods and prognosis of patients with chronic otitis media with Acinetobacter infection. Method: Retrospective analysis of clinical data of 6 cases of chronic otitis media complicated with Acinetobacter infection. Including history, clinical manifestations, laboratory examination, audiology, inner ear, CT, MRI imaging characteristics, treatment and prognosis of etc. to summarize the clinical characteristics, diagnosis and treatment of chronic otitis media with Acinetobacter infection. Result: The age was between 17 years old and 61 years old (Median age 30 years) .Two of them was male and 4 were female. Four cases were had underlying diseases. Five cases with main symptom of cholesteatoma, 1 case with earache symptoms, and 1 case with facial paralysis symptoms. Four cases had vary degrees of physical decline and destruction of bone. After surgery treatment, five patients improved ear pus, among 3 cases was cured, 2 cases of recurrence. Conclusion: Chronic otitis media with Acinetobacter infection occurs in the patient with elderly, poor physical constitution. However, the recurrence rate of conventional treatment is higher. The disease has high misdiagnosis rate. Operation combined with sensitive antibiotic therapy is a radical cure method., Competing Interests: The authors of this article and the planning committee members and staff have no relevant financial relationships with commercial interests to disclose., (Copyright© by the Editorial Department of Journal of Clinical Otorhinolaryngology Head and Neck Surgery.)