A COMPARATIVE STUDY OF PREOPERATIVE HRCT TEMPORAL BONE AND INTRAOPERATIVE FINDING IN CSOM PATIENTS

V P Narve; Kirtika Gupta

Volume : IX, Issue : VI, June - 2020

A COMPARATIVE STUDY OF PREOPERATIVE HRCT TEMPORAL BONE AND INTRAOPERATIVE FINDING IN CSOM PATIENTS

V P Narve, Kirtika Gupta

Abstract :

Background: After the invention of CT by British engineer Godfrey Hounsfield in 1972, the view of surgical management has completely changed. HRCT temporal bone is considered to be the GOLD STANDARD in diagnosing the pathology and extent of CSOM patients. Methods: A prospective study of 40 patients was done with suspected squamosal chronic otitis media was carried out in tertiary care hospital, Gwalior, India in a time period of 1 year from May 2018 to May 2019. Preoperative evaluation of disease is done by HRCT temporal bone followed by surgical intervention. Important findings in HRCT temporal bone and surgery were correlated for statistical significance. Results: This study of 40 patients revealed 23(57.5%) male patients and 17 female patients (42.5%) with mean age of presentation is 24.24 years with 47.5 % patients presented with right ear pathology, 40 % with left ear pathology and 12.5 % with bilateral ear pathology. Mesotympanum was involved in 75% of patients followed by incus erosion (50%) in HRCT findings. A high sensitivity (100%) of HRCT is found in scutum erosion, facial canal dehiscence, malleus, incus and stapes erosion, sinus plate erosion, mastoid erosion. Low sensitivity is found in EAC involvement (66.6%). A high specificity of HRCT temporal bone is found in tegmen erosion (100%). Conclusion: HRCT temporal bone provides an excellent tool to diagnose the ear pathology and helps in planning surgeries so as to reduce the mortality rate occurring due to inappropriate treatment of ear diseases.