Endoscopic Endonasal Trans-Sphenoidal Minimally Invasive Pituitary Surgery with Image Guided Navigation System (Igns): Learning Experience of Ent Surgeon: First Author.

Introduction- Endoscopic minimally invasive pituitary surgery (MIPS) is advantageous over microscopic technique, as it provides superior close up, wide angle view of surgical target area. Image guided navigation system (IGNS) guides the surgeon to localize the lesion. In the present study we analyzed the Image Guided Surgical procedure and outcome of Endoscopic minimally invasive pituitary surgery and shared our experiences regarding disease clearance. MATERIALS AND METHODS: During the period of April 2015 to August 2022 a total 104 patients, diagnosed with pituitary adenoma underwent surgery and further followed up in a multidisciplinary team approach in a tertiary care hospital of Kolkata, India. The data obtained were reviewed statistically to satisfy the study objectives. RESULTS: Total 104 operations were done on 98 patients and total cases taken for calculation and analysis was 98, which consist of 11 microadenomas, 81 macroadenomas. Among 35 patients with normal preoperative hormonal assay, one patient developed postoperative hypopituitarism. Among 6 patients with preoperative hypopituitarism 4 patients (66.6%) recovered after surgery. Overall, 85 cases had total disease clearance as detected on post-operative MRI. In functioning pituitary adenoma (FPA) clinical and endocrinological improvement occurred after primary surgery in 85.36% (n = 35) and after revision surgery it was 84.44% (n = 38). Macroadenomas, giant adenomas were found to have statistically significant higher risk of incomplete disease clearance but large adenomas do not have statistically higher risk of incomplete clearance. CONCLUSION: IGNS requires extra time for setup, but with proper registration of tracker instruments it adds precision to the surgery. IGNS supplements endoscopic visualization with localization of target lesion by real time stereotactic feedback using preset preoperative imaging data, thus increasing accuracy, safety and effectiveness of minimally invasive surgery.

Complications of Thyroidectomy and Learning Curve for Thyroid Surgeons: An Institutional Experience.

To study the complications of thyroidectomy and the various methods to be followed in the intra and post-operative period to prevent complications. It is a prospective study of 5 years and 9 months duration from 1/1/2015 to 31/9/2020 done in a tertiary care hospital. A total of 268 patients were included in this study. Adequate measures were taken intraoperatively to prevent any complications and the patients were observed post-operatively for development and management of any complications. The patients were followed up regularly. Out of the 268 thyroidectomies performed in our study following which 5 patients had hemorrhage, 19 patients had temporary recurrent laryngeal nerve dysfunction, 3 patients developed respiratory obstruction, 12 patients developed transient parathyroid insufficiency, 62 patients developed thyroid insufficiency,1 patient had permanent parathyroid insufficiency, permanent recurrent laryngeal nerve dysfunction was seen in 7 patients, 3 patients developed seroma formation, 7 patients developed post-operative hypertrophic scar and 3 developed keloid. Sound anatomical knowledge, meticulous surgical technique and effective protocol for the management of complication can reduce the postoperative morbidity of the patient.

Management of Tracheo-Bronchial Foreign Bodies in Children: Our Experience.

(1) To study the epidemiological profile of the patients. (2) To study the various modalities of investigations to arrive at confirmatory diagnosis. (3) To study the post-operative complications. It was a hospital based prospective study. A total of 36 paediatric patients were included in the study over a duration of 2 years (August 2017 to July 2019). Written informed consent was taken from the parent of each patient before performing bronchoscopy. All the patients were subjected to careful clinical examination and investigations required followed by emergency bronchoscopic removal of foreign body. The patients were followed up at 1 and 3 months after bronchoscopic removal. Amongst the 36 cases, 12 cases presented with airway emergency which addressed by bronchoscopic removal immediately. 10 cases presented with suggestive history of foreign body aspiration were subjected to clinical and radiological studies followed by bronchoscopic removal. 14 cases were referred from paediatric in-patient department who were being treated for unresolved LRTI. Early intervention is life saving if timely done. Unresolved LRTIs should be looked carefully to address missed foreign bodies. HRCT Thorax with 3-D reconstruction (Virtual Bronchoscopy) helps in exact localization of the foreign body. Experienced team of surgeons and anesthetist along with a ICU support is needed for efficient management.

A Comparative Study on Clinico-radiological Differentiation of Sino-nasal Squamous Cell Carcinoma (SCC) and Sino-nasal Non-Hodgkins Lymphoma (NHL).

(1) To compare clinical presentations between sinonasal non-Hodgkins Lymphoma (NHL) and sino-nasal Squamous cell carcinoma (SCC). (2) To compare computed tomographic (CT) scan findings between sino-nasal NHL and sino-nasal SCC. (1) Design: Retrospective Comparative study. (2) Setting: tertiary care hospital. (3) Subjects: patients with histologically proven primary maxillary tumors (NHL and SCC). (4) Method: (a) Patients: medical records between March 2013 to March 2018 were examined and patients with histologically proven primary maxillary tumors (NHL and SCC) were included in the study. (b) CT imaging: unenhanced and contrast enhanced images were obtained for all patients. Unenhanced CT images were reconstructed using bone and soft tissue algorithm. (c) Image Assessment: Predominant growth patterns of the tumors were noted from the CT images. Sino-nasal NHL: 8 men and 3 women; Sino-nasal SCC: 19 men and 5 women. Mean age of the NHL and SCC patients were 66.18 y and 64.88 y respectively. Nasal obstruction, diplopia/blurred vision, nasal/cheek pain and cranial nerve palsies were significantly more common presentation among sino-nasal NHL patients (p values of 0.0053, 0.0014, 0.0089 and 0.0089 respectively). Permeative growth pattern was significantly higher among NHL patients (54.54%) (p value = 0.026) whereas SCCs showed significant destructive growth pattern (83.33%) (p value = 0.0009). Intra-tumoral necrosis was significantly higher in SCC patients (87.5%) (p value = < 0.0001). Nasal obstruction, diplopia/blurred vision, nasal/cheek pain and cranial nerve palsies were the predominant presenting features in sino-nasal NHL patients. In CT imaging, Sino-nasal SCCs showed predominantly destructive growth pattern and intra-tumoral necrosis whereas permeative growth was predominant feature of sino-nasal NHL.