Navigation-guided nasal endoscopic surgery for acute vision loss caused by fibrous dysplasia: a case report and review of literatures

Background Bone fibrous dysplasia is a benign disease of bone tissue dysplasia. Vision impairment is the commonest neurological complication of craniofacial fibrous dysplasia. Most of the vision loss caused by craniofacial fibrous dysplasia is usually a gradual process. Very few present with acute visual impairment as described in our case. Case presentation We report a patient with fibrous dysplasia presenting rapidly progressive visual loss in the left eye secondary to bone cyst formation. Transnasal endoscopic surgery guided by navigation with drainage and curettage of this bone cyst and orbital decompression resulted in progressive improvement in visual acuity that returned to normal 1 month post-operatively. Conclusions In cases with acute visual loss due to fibrous dysplasia, emergency surgical treatment should be considered to preserve vision. In the surgical approach, navigation-guided nasal endoscopic surgery may be preferred because of its advantages.

Endoscopic Operating Platforms and Advancements

The first endoscope was created in 1805 by Philip Bozini in Germany. This endoscope was known as “Lichtleiter,” a light guiding instrument. In the 1950s, the first models of fiberoptic endoscopes were introduced. Since then, the technology associated with endoscopic surgery has grown by leaps and bounds. This article aims to explore current operating platforms and emerging technology associated with endoscopic surgery.

Ovine Endoscopic Ear Surgery - Accessible Smartphone-Based Training Model

Background: Understanding middle ear anatomy, in addition to endoscopic surgical skill acquisition, is an arduous task. Mastering 3-dimensional conceptualization and surgical dexterity may take many years. The coronavirus pandemic has made training difficult and complicated due to social distancing and risk of aerosolized viral spread in cadaver dissection. In this study we suggest a smartphone-based endoscope ovine head cadaveric dissection which is a simple, safe, and affordable training model for residents as an initial step in otologic endoscopic surgery training.Methods: A stepwise depiction of endoscopic ovine middle ear surgery; from cadaver and equipment acquisition, setting preparation, to surgical explanation and procedural steps. Results: The smartphone-based endoscopic otological ovine dissection model provides a low-cost, easily accessible and easily deployable training model for the novice surgeon world-wide. This model permits the novice surgeon a comprehensive anatomical understanding, middle ear proprioception, as well as a "safe" practicing model for diverse middle ear procedures. Conclusions: The ovine cadaver otological smartphone-based endoscopic surgery training model is an affordable, easy, reproducible, and transportable model, which makes it an ideal model from implementation in both low-middle and high-income countries.

An advanced endoscopic surgery robotic platform for removal of early-stage gastrointestinal cancer using endoscopic submucosal dissection

Two gastrointestinal (GI) cancers, stomach and colorectal cancer, have the fifth and third highest incident rates and the fourth and second highest mortality rates among all cancers, respectively. Combined, they had 2.8 million new cases and 1.6 million deaths annually. Fortunately, early-stage GI cancer has a high five-year survival rate if the tumour can be removed completely. Endoscopic Submucosal Dissection (ESD) is the gold standard for the removal of early-stage GI cancer as it has a high rate of en-bloc resection and a low rate of recurrence. However, ESD is a very technically challenging surgical operation. It has a relatively high rate of failure, including perforation of the stomach or colon. Therefore, a surgical robotic platform with high dexterity and better ergonomics is in high demand, which can ease the technical problems induced by conventional ESD procedures. In our previous study, a prototype of an endoscopic surgery robotic platform was built and the preliminary experimental results showed that the dual flexible arm robotic platform with wire-driven continuum structure was capable of increasing the efficiency and safety in performing ESD under the master-slave controlling scheme. An advanced robotic platform was built based on this prototype to achieve higher flexibility and production requirements. The design of these two platforms and experimental results will be presented in detail.

Comparative efficacy of various methods of infertility treatment in patients with external genital endometriosis

With the aim of comparative examination of efficacy of different drugs and methods of endoscopic surgery in treatment of infertile women with genital endometriosis 548 patients were examined. Distinct advantages of combined treatment were revealed: surgical destruction of endometrial foci at the first stage and administration of antigonadotrophic preparations at the second stage. Maximum frequency of impregnation after such therapy was observed during first 6-8 months. By 11-12 months the index decreased to its minimum. So, it is reasonable to give up passive supervision after 12 months

Endoscopic surgery in gynecology: state and development prospects

In the clinical lecture the main principles of arranging endovideosurgical carein gynecology are substantiated on the basis of the material of 17,5 thousandslaparoscopies and 10 thousands hysteroscopies. The detailed analysis of possibilities of endoscopic methods in operative gynecology is given. The peculiarities of laparoscopys application are depicted in cases of tube-peritoneal infertility, uterine and ovarian tumors, pyoinflammatory diseases of uterine adnexa, ectopic pregnancy, maldevelopment of female genital organs, stress incontinence in women. Perspectives of endovideosurgical technologies in gynecological practice are also shown.