Arun, D (2013) Portsmouth Possum Scoring System in General Surgical Practice and Identifying Risk Factors for Low Outcome in Gastrointestinal Surgeries. Masters thesis, Madras Medical College, Chennai.
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Abstract
BACKGROUND AND OBJECTIVES: The Physiological and Operative Severity Score for the enumeration of mortality and morbidity (POSSUM) and its modification the Portsmouth POSSUM, have been proposed as a method for standardising patient data so that direct comparisons can be made in spite of differing patterns of referral and population. Application of the POSSUM scoring system in this country where the level of healthcare and resources differ, is limited. In this prospective study, the validity of P-POSSUM was tested in patients undergoing major surgery and the risk factors for low outcome were noted. METHODS: Some 100 major gastrointestinal surgeries, as defined by the POSSUM scoring system criteria were studied. Predicted mortality rates were calculated using the P-POSSUM equation by linear analysis method. It was then compared with the actual outcomes. The risk factors as scored in the POSSUM criteria were noted. RESULTS: Applying linear analysis, an observed to expected ratio of 0.96 was obtained, indicating a significant fit for predicting the post operative adverse outcome. There was no significant difference between the observed and predicted mortality rates (x2 = 1.667, 9 d.f., P = 0.9957). It was found to be comparable to other studies. In all the risk factors studied, a positive correlation was found between deaths and higher POSSUM scores. INTERPRETATION AND CONCLUSION: Portsmouth POSSUM scoring system serves as a good predictor of post operative outcome in major general surgical procedures and was applicable even in our setup and be used for comparing various treatment modalities and assessing the quality of care provided.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Physiological and Operative Severity Score for the Enumeration of Mortality and Morbidity (POSSUM) ; surgical scoring; mortality ; Portsmouth Possum Scoring System. |
| Subjects: | MEDICAL > General Surgery |
| Depositing User: | Devi S |
| Date Deposited: | 20 Jul 2017 07:05 |
| Last Modified: | 26 Mar 2018 01:25 |
| URI: | http://repository-tnmgrmu.ac.in/id/eprint/1953 |
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