Transoral laser resection of a large schwannoma in the retropharyngeal space

Introduction: The contents of the retropharyngeal space are limited to fat and retropharyngeal nodes. Primary tumors originating from the retropharyngeal space are rare, therefore, the existence of schwannoma in the retropharyngeal space is infrequent. Method: This paper describes a case of a large schwannoma of the retropharyngeal space excised transorally with the use of co2 laser. This lesion measured about 6/6 x 3/5. Result: No peri-or post-operative complications were encountered. The procedure allowed quick resumption of an oral diet and a return to normal activity for the patient. Conclusion: This is, to our knowledge, the first report of this technique used in the excision of a large retropharyngeal space schwannoma.

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Transoral robotic resection of a large schwannoma in the retropharyngeal space

The Journal of Laryngology & Otology ◽

10.1017/s0022215116000190 ◽

2016 ◽

Vol 130 (4) ◽

pp. 401-403 ◽

Cited By ~ 1

Author(s):

A Gungadeen ◽

R Lisseter ◽

J Manickavasagam ◽

V Paleri

Keyword(s):

Case Report ◽

Normal Activity ◽

Robotic System ◽

Retropharyngeal Space ◽

En Bloc ◽

Complete Excision ◽

First Report ◽

Operative Complications ◽

Robotic Resection ◽

Oral Diet

AbstractBackground:External approaches have been traditionally used for the complete excision of large retropharyngeal space lesions.Case report:This paper describes a case of a large schwannoma of the retropharyngeal space excised transorally with the use of a robotic system. This lesion measured 2.7 × 1.2 cm in axial dimensions and over 5.8 cm in craniocaudal length. The lesion was delivered en bloc with an intact capsule. No peri- or post-operative complications were encountered. The procedure allowed quick resumption of an oral diet and a return to normal activity for the patient.Conclusion:This is, to our knowledge, the first report of this technique used in the excision of a large retropharyngeal space mass.

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Low-temperature radiofrequency coblation reduces treatment interval and post-operative pain of laryngotracheal recurrent respiratory papillomatosis

Bioscience Reports ◽

10.1042/bsr20192005 ◽

2020 ◽

Vol 40 (5) ◽

Author(s):

Fang Hao ◽

Liyan Yue ◽

Xiaoyan Yin ◽

Xiaotong Wang ◽

Chunguang Shan

Keyword(s):

Low Temperature ◽

Blood Loss ◽

Co2 Laser ◽

Operation Time ◽

Recurrent Respiratory Papillomatosis ◽

High Recurrence Rate ◽

Time Interval ◽

Pain Scores ◽

Operative Complications ◽

Post Operative Complications

Abstract Laryngeal papillomatosis is a benign disease in the larynx but with the potential to develop into significant complications as a result of its high recurrence rate. CO2 laser and radiofrequency controlled ablation (coblation) have been used to treat recurrent respiratory papillomatosis, but detailed comparisons of their respective treatment outcomes are not fully investigated. This retrospective study examines the procedure time, time interval between interventions, blood loss during operation, post-operative complications and pain scores among patients who received either CO2 laser or radiofrequency coblation interventions for laryngotracheal recurrent respiratory papillomatosis. Compared with CO2 laser intervention, radiofrequency coblation significantly reduced operation time, time interval between interventions, blood loss during operation and number of times bipolar electrocoagulation needed in each procedure. Post-operatively, pain scores after radiofrequency coblation were significantly lower than those after CO2 laser intervention. Incidence rates of post-operative complications, in terms of palate pharyngeal mucosa damage, bleeding and subcutaneous emphysema, were also significantly reduced after radiofrequency coblation. Low-temperature radiofrequency coblation is a superior intervention compared with CO2 laser against laryngotracheal recurrent respiratory papillomatosis.

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Pelvic Canal Narrowing Caused by Triple Pelvic Osteotomy in the Dog

Veterinary and Comparative Orthopaedics and Traumatology ◽

10.1055/s-0038-1633130 ◽

1994 ◽

Vol 07 (03) ◽

pp. 110-113 ◽

Cited By ~ 6

Author(s):

D. L. Holmberg ◽

M. B. Hurtig ◽

H. R. Sukhiani

Keyword(s):

Postoperative Complications ◽

Pelvic Osteotomy ◽

Cross Sectional Area ◽

Sectional Area ◽

Cross Sectional ◽

Canal Width ◽

Operative Complications ◽

Post Operative Complications

SummaryDuring a triple pelvic osteotomy, rotation of the free acetabular segment causes the pubic remnant on the acetabulum to rotate into the pelvic canal. The resulting narrowing may cause complications by impingement on the organs within the pelvic canal. Triple pelvic osteotomies were performed on ten cadaver pelves with pubic remnants equal to 0, 25, and 50% of the hemi-pubic length and angles of acetabular rotation of 20, 30, and 40 degrees. All combinations of pubic remnant lengths and angles of acetabular rotation caused a significant reduction in pelvic canal-width and cross-sectional area, when compared to the inact pelvis. Zero, 25, and 50% pubic remnants result in 15, 35, and 50% reductions in pelvic canal width respectively. Overrotation of the acetabulum should be avoided and the pubic remnant on the acetabular segment should be minimized to reduce postoperative complications due to pelvic canal narrowing.When performing triple pelvic osteotomies, the length of the pubic remnant on the acetabular segment and the angle of acetabular rotation both significantly narrow the pelvic canal. To reduce post-operative complications, due to narrowing of the pelvic canal, overrotation of the acetabulum should be avoided and the length of the pubic remnant should be minimized.

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