Objective To report tympanoplasty cases completed with Sheehy Partial Ossicular Replacement Prostheses(PORP).Methods Seventy eight(83 ears) of 89 cases who received Sheehy PORP for ossicular chain reconstructionwere r...Objective To report tympanoplasty cases completed with Sheehy Partial Ossicular Replacement Prostheses(PORP).Methods Seventy eight(83 ears) of 89 cases who received Sheehy PORP for ossicular chain reconstructionwere reviewed.These cases were followed for more than 6 months(mean:21.3 months).The preand post -operative average air conduction thresholds and Air -Bone Gap(ABG) at 0.5,1 and 2 kHz were compared.Results All 83 ears showed uneventful healing at 1 month postoperatively.PORPs in 2 ears without cartilage reinforcement were found dislocated at 3 months.Preoperative hearing thresholds were from 35.75 to 68.5 dB HL(mean:59.13 ± 15.23 dB HL).Postoperative mean hearing threshold improved to 32.23± 13.21 dB HL(P < 0.01).Mean air-bone gap(ABG) improved from 36.95 ± 12.19 dB preoperatively to 21.71 ± 12.05 dB after surgery(P < 0.01).In 68 ears(81.9%),postoperative ABGs were either ≤ 20 dB or improved by 15 dB or more compared to before surgery(defined as satisfactory).Conclusion PORP as a ossicular reconstruction material appears to provide satisfactory results.Attention should be paid to avoid of postoperative dislocation.Long-term outcomes remain to be assessed.展开更多
Congenital aural atresia is characterized by aplasia of the external auditory canal (EAC), often associated with abnormalities of the auricula (microtia), the middle ear, and, occasionally, the inner ear structures. T...Congenital aural atresia is characterized by aplasia of the external auditory canal (EAC), often associated with abnormalities of the auricula (microtia), the middle ear, and, occasionally, the inner ear structures. The aim of this study is to evaluate the surgical challenges, complications and long term results of congenital aural atresia(CAA) surgery. Records of 103 patients who underwent surgery because of congenital aural atresia were reviewed between 1992 and 2012 in a tertiary referral center. Audiological and surgical events were observed. Surgical technique, incision type, graft material and long term results were noted. Postoperative visit records and audiograms were investigated. Many types of ossicular chain abnormalities such as absence of an ossicle, deformity of an ossicle or ossicular block were observed. Facial canal dehiscence or abnormal location of the facial nerve was seen in 33.9% of patients. Closure of the air-bone gap (ABG) to 30 dB or less at short-term follow-up occurred in 63.1% of patients. Major complications were as follows: restenosis of the external ear canal, hearing loss, facial paralysis, iatrogenic cholesteatoma and perforation of the graft. The air-bone gap cannot be totally closed in all aural atresias, and there is also the chance of sensorineural type hearing loss. Success of the surgery depends on accompanying abnormalities like unexpected route or dehiscence of facial nerve, status of the ossicular chain and middle ear cleft and surgical techniques. Long term results of congenital aural atresia surgery are encouraging and promising.展开更多
文摘Objective To report tympanoplasty cases completed with Sheehy Partial Ossicular Replacement Prostheses(PORP).Methods Seventy eight(83 ears) of 89 cases who received Sheehy PORP for ossicular chain reconstructionwere reviewed.These cases were followed for more than 6 months(mean:21.3 months).The preand post -operative average air conduction thresholds and Air -Bone Gap(ABG) at 0.5,1 and 2 kHz were compared.Results All 83 ears showed uneventful healing at 1 month postoperatively.PORPs in 2 ears without cartilage reinforcement were found dislocated at 3 months.Preoperative hearing thresholds were from 35.75 to 68.5 dB HL(mean:59.13 ± 15.23 dB HL).Postoperative mean hearing threshold improved to 32.23± 13.21 dB HL(P < 0.01).Mean air-bone gap(ABG) improved from 36.95 ± 12.19 dB preoperatively to 21.71 ± 12.05 dB after surgery(P < 0.01).In 68 ears(81.9%),postoperative ABGs were either ≤ 20 dB or improved by 15 dB or more compared to before surgery(defined as satisfactory).Conclusion PORP as a ossicular reconstruction material appears to provide satisfactory results.Attention should be paid to avoid of postoperative dislocation.Long-term outcomes remain to be assessed.
文摘Congenital aural atresia is characterized by aplasia of the external auditory canal (EAC), often associated with abnormalities of the auricula (microtia), the middle ear, and, occasionally, the inner ear structures. The aim of this study is to evaluate the surgical challenges, complications and long term results of congenital aural atresia(CAA) surgery. Records of 103 patients who underwent surgery because of congenital aural atresia were reviewed between 1992 and 2012 in a tertiary referral center. Audiological and surgical events were observed. Surgical technique, incision type, graft material and long term results were noted. Postoperative visit records and audiograms were investigated. Many types of ossicular chain abnormalities such as absence of an ossicle, deformity of an ossicle or ossicular block were observed. Facial canal dehiscence or abnormal location of the facial nerve was seen in 33.9% of patients. Closure of the air-bone gap (ABG) to 30 dB or less at short-term follow-up occurred in 63.1% of patients. Major complications were as follows: restenosis of the external ear canal, hearing loss, facial paralysis, iatrogenic cholesteatoma and perforation of the graft. The air-bone gap cannot be totally closed in all aural atresias, and there is also the chance of sensorineural type hearing loss. Success of the surgery depends on accompanying abnormalities like unexpected route or dehiscence of facial nerve, status of the ossicular chain and middle ear cleft and surgical techniques. Long term results of congenital aural atresia surgery are encouraging and promising.
