News & Events 


10/28/2015: We are happy to announce the first issue of the Department of Surgery newsletter. This is a bi-monthly publication that highlights what we are working on, new news, research projects as well as upcoming changes. We will have interviews, articles and upcoming events in every issue.

» Click to read more news about UMass Surgery


In Hospital Mortality for Liver Resection for Metastases: A Simple Risk Score

   Jessica P. Simons, M.D.,* Sing Chau Ng, M.S.,* Joshua S. Hill, M.D., Shimul A. Shah, M.D.,* Andreea Bodnari,  Zheng Zhou, M.D., Ph.D.,* Jennifer F. Tseng, M.D., M.P.H.*

Article published in Journal of Surgical Research, 2009 Sep;156(1):21-5. PMID: 19577250


Step 1. Calculate Charlson comorbidity score
Indicate "yes" for the comorbidities that the patient has. This validated algorithm (Charlson, ME et al. J Chron Dis 1987; 40(5):373-83.) assigns a point value to the various diseases. The patient's raw score will then be reassigned into the collapsed Charlson score groups for use in the risk score calculation. Group 1 is a score of zero, Group 2 is a score of 1, Group 3 is a score of 2, and Group 4 is a score of 3 or higher.  



Cerebrovascular Disease   
Chronic Pulmonary Disease   
Congestive Heart Failure   
Connective Tissue/Rheumatic Disease   
Diabetes Without End Organ Damage   
Diabetes With End Organ Damage   
Liver Disease Mild to Moderate   
Liver Disease Severe   
Myocardial Infarction   
Peripheral Vascular Disease   
Renal Disease   
Ulcer Disease   
Charlson Group Score


Step 2. Calculate the risk score, including the Charlson group.
Patient age, Charlson score group, planned procedure type, gender, and the teaching status of the hospital are indicated.  The point values are assigned accordingly to yield an additive score.  By clicking on the "Calculate Estimated Mortality" button, this score is then assigned to the appropriate risk score group, and the mortality for that group is displayed.



Point Value

Age Group     
Charlson Group Score
Procedure Type     
Hospital Type     


Figure1. Estimated Mortality Risk by score groups 



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