scholarly journals Comparative study between microscopic and endoscopic stapes surgery

2017 ◽  
Vol 3 (2) ◽  
pp. 285 ◽  
Author(s):  
B. Harikumar ◽  
K. J. Arun Kumar
Keyword(s):  
Postoperative Pain ◽  
Operating Time ◽  
Surgical Techniques ◽  
Stapes Surgery ◽  
Stereoscopic Vision ◽  
Easy Access ◽  
Chorda Tympani ◽  
Chorda Tympani Nerve ◽  
Microscopic Surgery ◽  
Endoscopic Group

<p class="abstract"><strong>Background:</strong> To investigate whether endoscopic stapes surgery is safer and less invasive than conventional stapes surgery using an operating microscope.</p><p class="abstract"><strong>Methods:</strong> The subjects were 60 patients who were divided consecutively into group A undergoing microscopic stapedotomy and group B undergoing endoscopic stapedotomy. The procedures for endoscopic surgery were fundamentally the same as those for microscopic surgery, except for post aural incision used in some patients in microscopic group. The two surgical techniques were compared with respect to the operating time, approach, drilling of posterosuperior canal, manipulation of chorda tympani, visualisation of anterior crus, postoperative hearing, postoperative pain, and complications.  </p><p class="abstract"><strong>Results:</strong> There were no differences of operating time or postoperative hearing between the endoscopic and microscopic groups. There was very little postoperative pain in the endoscopic group. Drilling at the posterosuperior part of the external auditory canal was less extensive in the endoscopic group than in the microscopic group. Visualisation of anterior crus of stapes was good in endoscopic group.</p><p><strong>Conclusions:</strong> Endoscopic stapes surgeries are technically feasible, safe and promising. The main advantages were: easy access, virtually no trauma to the chorda tympani nerve and excellent vision. The disadvantages were the lack of stereoscopic vision, having to work with one hand only and the learning curve. </p>

Change of somatosensory function of the tongue caused by chorda tympani nerve disorder after stapes surgery

2017 ◽  
Vol 128 (3) ◽  
pp. 701-706 ◽  
Author(s):  
Emi Maeda ◽  
Hirokazu Katsura ◽  
Tomomi Nin ◽  
Akiko Sakaguchi-Fukunaga ◽  
Yasuo Mishiro ◽  
...  
Keyword(s):  
Stapes Surgery ◽  
Chorda Tympani ◽  
Chorda Tympani Nerve ◽  
Somatosensory Function

A comparison between endoscopic and microscopic approaches for stapes surgery: a systematic review

2020 ◽  
Vol 134 (5) ◽  
pp. 398-403 ◽  
Author(s):  
H F Pauna ◽  
R C Pereira ◽  
R C Monsanto ◽  
M S A Amaral ◽  
M A Hyppolito
Keyword(s):  
Systematic Review ◽  
Surgical Technique ◽  
Web Of Science ◽  
Surgical Techniques ◽  
Stapes Surgery ◽  
Less Invasive Surgery ◽  
Microscopic Approach ◽  
Microscopic Surgery ◽  
Hearing Outcomes ◽  
Microscopic Techniques

AbstractObjectivesTo evaluate the surgical techniques, approaches, audiological outcomes and complications of endoscopic stapes surgery.MethodsSystematic searches of the literature were performed in PubMed, Web of Science and Scopus databases, to identify studies of patients who underwent stapes surgery using endoscopic approaches and studies reporting objective post-operative hearing outcomes. The following information was extracted: surgery duration, complications, surgical technique and audiometric results.ResultsFourteen studies were selected for appraisal, which included a total of 282 ears subjected to endoscopic stapes surgery. Endoscopic stapes surgery seems to provide adequate visualisation of the middle-ear structures, thereby allowing less invasive surgery and potentially equivalent audiological outcomes as compared with a traditional microscopic approach. Other advantages of endoscopic stapes surgery include decreased surgery time, a reduced need for drilling, and auditory results comparable to those of microscopic techniques.ConclusionStudies have shown that endoscopic stapes surgery has similar surgical and functional advantages as compared with microscopic surgery.

scholarly journals Endoscopic Stapedotomy: Overcoming Limitations of Operating Microscope

2019 ◽  
pp. 014556131986221 ◽  
Author(s):  
Arindam Das ◽  
Sandipta Mitra ◽  
Debasish Ghosh ◽  
Arunabha Sengupta
Keyword(s):  
Operating Time ◽  
Chorda Tympani ◽  
Taste Sensation ◽  
Operating Microscope ◽  
Operative Morbidity ◽  
Hearing Outcome ◽  
Post Operative Pain ◽  
Operating Surgeon ◽  
Endoscopic Stapedotomy ◽  
Endoscopic Group

The study is aimed to assess the scope of endoscopic stapedotomy in overcoming technical challenges faced during conventional stapedotomy using operating microscope. Sixty-four patients with clinical and audiological diagnosis of otosclerosis were randomly assigned into one of the 2 groups—one underwent conventional stapedotomy using operating microscope, while the other group underwent endoscopic stapedotomy, the operating surgeon being the same for both groups, for all cases. The 2 groups were observed in terms of extent of the postero-superior canal bone curettage/drilling, chorda tympani repositioning, visualization of footplate area, surgical time from first incision to ear packing, post-operative morbidity in terms of post-operative pain, vertigo, hearing outcome, and changes in taste sensation. It was observed that irrespective of the width of the external auditory canal, endoscopic approach offered better access to the footplate area requiring lesser bone removal and chorda tympani repositioning. The operating time, post-operative pain, and changes in taste sensation were significantly less in the endoscopic group. However, no difference was noted in terms of the post-operative hearing outcome and incidence of vertigo. Endoscopic stapedotomy has clear advantages in terms of the technicality and accessibility to the working area as well as faster recovery.

scholarly journals Chorda tympani nerve management in endoscopic stapes surgery

2017 ◽  
Vol 18 (1) ◽  
pp. 1-4
Author(s):  
Ahmed Amin Omran ◽  
Ahmed Aly Ibrahim ◽  
Wael K.A. Hussein ◽  
Yasser Osman
Keyword(s):  
Stapes Surgery ◽  
Chorda Tympani ◽  
Chorda Tympani Nerve

EARLY RESULTS OF INGUINAL HERNIA REPAIR BY THE “MESH PLUG” TECHNIQUE

2012 ◽  
pp. 43-51
Author(s):  
Doan Van Phu Nguyen ◽  
Loc Le ◽  
Van Lieu Nguyen
Keyword(s):  
Inguinal Hernia ◽  
Postoperative Pain ◽  
Operating Time ◽  
Life Assessment ◽  
Medium Size ◽  
Mesh Plug ◽  
Postoperative Rehabilitation ◽  
Early Return ◽  
Early Results ◽  
Average Size

Background: In 1989, Lichtenstein I. L., Shulman A. G., Amid P. K., and Montlor M. M. presented an idea of using Mesh Plug to repair the defect inguinal canal. The new technique quickly became accepted by surgeons all over the world for several reasons: faster overall rehabilitation, less postoperative pain, less complication, shorter stay in the hospital and early return to normal activities and work. Materials and method: From Dec 2011 to July 2012, 42 patients with inguinal hernia were surgically treated with 48 Mesh Plugs applied at the Surgery Unit of Hue University of Medicine and Pharmacy. Result: The patients’ average age was 49.12±21.17. There were 25 patients over 40 years old, accounting for 59,5%, and 39 of the group were males, accounting for 92.8%. 10 cases were direct hernia, accounting for 20.8%, and 38 cases were indirect hernia accounting for 79.2%. Based on Nyhus’s classification, there were 33 cases of IIIA and IIIB (68.8%). Based on the position of protrusion, there were 30 cases of right inguinal hernia (62.5%), 18 cases of left inguinal hernia (37.5%), and 6 cases of hernia on both sides. The average size of the deep ring is 2.16±1.64cm. 24 cases used Mesh Plug of medium size (54.5%). The mean operating time was 35.75 minutes. The time of staying in the hospital was 3.52±1.14 days. Quality of life assessment after the surgery showed 46 very good and good cases 95.8% and 2 cases (4.2%) with satisfactory result. No case of bad outcome was recorded. Conclusion: Surgical treatment of inguinal hernia by the Mesh Plug technique is really effective, safe with faster postoperative rehabilitation, less postoperative pain, less complications, shorter hospital stay and early return to normal activities and work.

INGUINAL HERNIA REPAIR BY THE “MESH PLUG” TECHNIQUE

2014 ◽  
pp. 40-46
Author(s):  
Doan Van Phu Nguyen ◽  
Loc Le ◽  
Van Lieu Nguyen
Keyword(s):  
Inguinal Hernia ◽  
Postoperative Pain ◽  
Operating Time ◽  
Life Assessment ◽  
Medium Size ◽  
Mesh Plug ◽  
Indirect Hernia ◽  
Postoperative Rehabilitation ◽  
Early Return ◽  
Direct Hernia

Background:In 1989, Lichtenstein I. L., Shulman A. G., Amid P. K., and Montlor M. M. presented an idea of using Mesh Plug to repair the defect inguinal canal. The new technique quickly became accepted by surgeons all over the world for several reasons: faster overall rehabilitation, less postoperative pain, less complication, shorter stay in the hospital and early return to normal activities and work. Materials and method:From December 2011 to October 2012, 97 patients with inguinal hernia were surgically treated with 110 Mesh Plugs applied at the Surgery Unit of Hue University of Medicine and Pharmacy. Result:The patients’ mean age was 48.96±23.19. There were 60 patients over 40 years old, accounting for 61.9%, and 93 of the group were males, accounting for 95.8%. 24 cases were direct hernia, accounting for 21.8%, 86 cases were indirect hernia accounting for 78.2% and 11cases were direct hernia associated with indirect hernia. Based on Nyhus’s classification, there were 76 cases of IIIA and IIIB (69.1%). Based on the position of protrusion, there were 66 cases of right inguinal hernia (60.0%), 44 cases of left inguinal hernia (40.0%), and 13 cases of hernia on both sides. The average size of the deep ring is 2.19±1.54cm. 65 cases used Mesh Plug of medium size (59.1%). The mean operating time was 37.26 minutes. The time of staying in the hospital was 3.58±1.17 days. Quality of life assessment after the surgery showed 93 very good and good cases 95.8% and 4 cases (4.2%) with satisfactory result. No case of bad outcome was recorded. Conclusion: Surgical treatment of inguinal hernia by the Mesh Plug technique is really effective, safe with faster postoperative rehabilitation, less postoperative pain, less complications, shorter hospital stay and early return to normal activities and work. Key words: Inguinal hernia, Mesh Plug.

scholarly journals Cell non-autonomous requirement of p75 in the development of geniculate oral sensory neurons

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Tao Tang ◽  
Christopher R. Donnelly ◽  
Amol A. Shah ◽  
Robert M. Bradley ◽  
Charlotte M. Mistretta ◽  
...  
Keyword(s):  
Sensory Neurons ◽  
Significant Loss ◽  
Taste Buds ◽  
Neurotrophin Receptor ◽  
P75 Neurotrophin Receptor ◽  
Chorda Tympani ◽  
Chorda Tympani Nerve ◽  
Tactile Stimuli ◽  
Oral Sensory ◽  
Nerve Recordings

AbstractDuring development of the peripheral taste system, oral sensory neurons of the geniculate ganglion project via the chorda tympani nerve to innervate taste buds in fungiform papillae. Germline deletion of the p75 neurotrophin receptor causes dramatic axon guidance and branching deficits, leading to a loss of geniculate neurons. To determine whether the developmental functions of p75 in geniculate neurons are cell autonomous, we deleted p75 specifically in Phox2b + oral sensory neurons (Phox2b-Cre; p75fx/fx) or in neural crest-derived cells (P0-Cre; p75fx/fx) and examined geniculate neuron development. In germline p75−/− mice half of all geniculate neurons were lost. The proportion of Phox2b + neurons, as compared to Phox2b-pinna-projecting neurons, was not altered, indicating that both populations were affected similarly. Chorda tympani nerve recordings demonstrated that p75−/− mice exhibit profound deficits in responses to taste and tactile stimuli. In contrast to p75−/− mice, there was no loss of geniculate neurons in either Phox2b-Cre; p75fx/fx or P0-Cre; p75fx/fx mice. Electrophysiological analyses demonstrated that Phox2b-Cre; p75fx/fx mice had normal taste and oral tactile responses. There was a modest but significant loss of fungiform taste buds in Phox2b-Cre; p75fx/fx mice, although there was not a loss of chemosensory innervation of the remaining fungiform taste buds. Overall, these data suggest that the developmental functions of p75 are largely cell non-autonomous and require p75 expression in other cell types of the chorda tympani circuit.

Systematic Review and Meta-analysis of Endoscopic vs Microscopic Stapes Surgery for Stapes Fixation

2021 ◽  
pp. 019459982199066
Author(s):  
Sandra Ho ◽  
Prayag Patel ◽  
Daniel Ballard ◽  
Richard Rosenfeld ◽  
Sujana Chandrasekhar
Keyword(s):  
Postoperative Complications ◽  
Meta Analysis ◽  
Stapes Surgery ◽  
Chorda Tympani Nerve ◽  
Stapes Fixation ◽  
Operative Outcomes ◽  
Significant Difference ◽  
The Mean ◽  
Postoperative Vertigo ◽  
Hearing Outcomes

Objective To systematically review the current literature regarding the operative outcomes of stapes surgery for stapes fixation via the endoscopic and microscopic approaches. Data Sources PubMed, Embase, and Web of Science. Review Methods An electronic search was conducted with the keywords “endoscop* or microscop*” and “stapes surgery or stapedectomy or stapedotomy or otosclerosis or stapes fixation.” Studies were included if they compared endoscopy with microscopy for stapes surgery performed for stapes fixation and evaluated hearing outcomes and postoperative complications. Articles focusing on stapes surgery other than for stapes fixation were excluded. Results The database search yielded 1317 studies; 12 remained after dual-investigator screening for quantitative analysis. The mean MINORS score was 18 of 24, indicating a low risk of bias. A meta-analysis demonstrated no statistically significant difference between the groups with regard to operative time, chorda tympani nerve manipulation or sacrifice, or postoperative vertigo. There was a 2.6-dB mean improvement in the change in air-bone gap in favor of endoscopic stapes surgery and a 15.2% increased incidence in postoperative dysgeusia in the microscopic group, but the studies are heterogeneous. Conclusions Endoscopic stapes surgery appears to be a reasonable alternative to microscopic stapes surgery, with similar operative times, complications, and hearing outcomes. Superior visibility with the endoscope was consistently reported in all the studies. Future studies should have standardized methods of reporting visibility, hearing outcomes, and postoperative complications to truly establish if endoscopic stapes surgery is equivalent or superior to microscopic stapes surgery.

Rate of Recovery of Taste Function after Preservation of Chorda Tympani Nerve in Middle Ear Surgery with Special Reference to Type of Disease

2003 ◽  
Vol 112 (1) ◽  
pp. 52-56 ◽  
Author(s):  
Masafumi Sakagami ◽  
Mieko Sone ◽  
Keijiro Fukazawa ◽  
Kojiro Tsuji ◽  
Yasuo Mishiro
Keyword(s):  
Recovery Of Function ◽  
Inflammatory Diseases ◽  
Chronic Otitis Media ◽  
Normal Function ◽  
Middle Ear Surgery ◽  
Chorda Tympani ◽  
Chorda Tympani Nerve ◽  
Taste Disturbance ◽  
Postoperative Symptoms ◽  
Rate Of Recovery

To study the recovery of function of the chorda tympani nerve, we examined by electrogustometry 79 patients (83 ears) with both preoperative normal function of the nerve and operative preservation of the nerve, every 2 days during hospitalization and at 6 months after surgery. For symptoms such as tongue numbness and taste disturbance, patients with noninflammmatory (NI) diseases (13/20 or 65.0%) showed a significantly higher rate of symptoms than did patients with chronic otitis media (COM; 13/35 or 37.1%) at 2 weeks after surgery (p = .032). The patients with NI diseases (5/20 or 25.0%) tended to show a higher rate of symptoms than did the COM patients (2/35 or 5.7%) or cholesteatoma patients (2/28 or 7.1%) at 6 months after surgery. The rate of recovery of the EGM threshold to normal at 2 weeks after surgery was significantly lower in NI disease patients (6/20 or 30.0%) than in COM patients (23/ 35 or 62.9%) or cholesteatoma patients (19/28 or 67.9%; p = .015 and .008, respectively). Thus, the patients with NI diseases had postoperative symptoms and elevation of EGM threshold more frequently than did the patients with inflammatory diseases.

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