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Objective: To evaluate the olfactory function in patients with chronic rhinosinusitis before and after functional endoscopic sinus surgery. Study Design: Descriptive cross-sectional study. Place and Duration of Study: Department of ENT, Combined Military Hospital, Rawalpindi, from Aug 2020 to Jul 2021. Methodology: We studied a total of 59 patients suffering from chronic rhinosinusitis. Patients with previous sinus surgery and immunosuppressed states were excluded. All participants underwent evaluation with a 5-point Likert scale and the Connecticut odor identification test both pre- and post-Functional endoscopic sinus surgery at 3 months post-procedure. Data were analyzed in SPSS version 26. Results: Our sample had a male to female ratio of 1.19:1. The mean age was 45.37 ± 14.25 years. A total of 37 (62.7%) patients reported an improvement of 19.2% in olfactory function post-FESS while 22 (37.2%) reported no difference or worsening of olfaction. Conclusion: Functional endoscopic sinus surgery performed for chronic rhinosinusitis is associated with an improvement in olfactory function. [ABSTRACT FROM AUTHOR]

Objective: To share experience of 1000 patients who underwent functional endoscopic sinus surgery (FESS) in 4 different hospitals for various diseases over span of 9 years. Study Design: Prospective observational study. Place and Duration of Study: Sheikh Khalifa Hospital Muzaffarabad, Combined Military Hospital Sialkot, Pak Emirates Military Hospital Rawalpindi and Combined Military Hospital Quetta, from Jun 2009 to Jun 2018. Methodology: We included 1000 patients who underwent Functional endoscopic sinus surgery (FESS) in four different military hospitals, suffering with various diseases discussed later. Patients were operated after failure to get response to medical therapy. All the patients had preoperative endoscopic examination and CT-scan paranasal sinuses (PNS) done for disease assessment. Patients were examined post operatively at 1, 15 days and 2 months. All patients were documented for the level of satisfaction at end of 2 months post-operative period. Results: Most patients were suffering from rhino sinusitis 364 (36.4%). Bilateral ethmoidal polyps constituted the second largest group at 289 (28.9%) patients. About 837 (83.7%) of patients were completely free of symptom, 104 (10.4%) with partial improvement whereas, 59 (5.9%) patients did not report any improvement in symptoms. 899 (89.9%) of patients were discharged on their first post operation day meaning less hospital stay and quick recovery. Conclusion: Functional endoscopic sinus surgery (FESS) can be employed to treatment variety of common nasal diseases (chronic rhino-sinusitis, nasal polyps) and non-nasal diseases like cerebrospinal fluid (CSF) rhinorrhea and as approach to skull base. This method of treatment was quite effective in alleviating symptoms of patients. [ABSTRACT FROM AUTHOR]