Background: Elective surgical case cancellation refers to any elective surgical case that is bookedrninto the operation theatre list on the day prior to surgery, but is not operated upon asrnscheduled. Elective surgical case cancellation is common and can have significant adverse effects.rnThe cancellation of planned surgeries causes prolonged wait times, harm to patients, and is a waste ofrnscarce resources. Reasons for cancellations are complex because they are related to patients,rnorganizational issues, and clinical staff.rnObjective: -To Assess the frequency, to identify reasons for cancellation and to interveningrnpotentially avoidable causes of cancellation and observe the impacts of intervention made in St. peterrnspecialized hospital.rnMethods: -The study took place at St. peter specialized hospital. This is a pre and post interventionrnstudy from February1/2010 to May 30/2010 E.C. All adult patients that underwent elective surgery inrnoperation room with in the study period were including. Total number of cancellations as well asrncause of cancellation was noted.rnImplementation: The most feasible intervention was addressing reasons of cancellation due tornshortage of OR material (Guan, cape, drape).rnResult: -At Pre intervention period highly cancellation caused by shortage of surgical material (guan,rnCape & drape). Plan was purchased each 100 of OR guan, drape & cape. Now all are ready for work.rnConclusion: Cancellation of surgeries is significant problem in this hospital .Reasons for cancellationrnidentified was four categories. Whereas only one was selected for intervention in these study afterrntaking impact, feasibility, cost effectiveness, time constraints into consideration. The highest presentrnfor reasons for cancellation were seen due to shortage of operation room material in pre-interventionrnperiod.rnRecommendation: As shortage of OR material (guan, cape and drape) which scores high in prernintervention, needs further in depth assessment and also other root causes should be addressed to seernthe desired changes. OR performance evaluation should be included in routine monitoring andrnhospitals clinical audit system.