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Is abnormal gallbladder ejection fraction hokum? Retrospective chart review of gallbladder ejection fraction and subsequent postoperative symptom relief, surgical pathology, and current literature review

 Department of Radiology, State University of New York Upstate Medical University, Syracuse, NY, USA

Correspondence Address:
Youngmin Chu,
Department of Radiology, State University of New York Upstate Medical University, 750 East Adams Street, Syracuse 13210, NY
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/wjnm.WJNM_117_20

The purpose of this report is to investigate the clinical importance of increased or decreased gallbladder ejection fraction (GBEF) and ultrasound findings for biliary dyskinesia by evaluating postsurgical symptom relief and surgical pathology. Single institution electronic medical record review was prepared for patients who underwent hepatobiliary iminodiacetic acid (HIDA) scan with GBEF and cholecystectomy between January 2013 and March 2020. Relevant data included patient demographics, ultrasound results, surgical pathology, HIDA with GBEF results, and postoperative symptom relief at the time of follow-up. Student's t-test was also utilized for additional statistical analysis. A total of 67 patients underwent cholecystectomy within a 1-month period of time after HIDA with GBEF. Of these patients, 97% had findings consistent with chronic cholecystitis and 3% of the patients demonstrated both acute and chronic cholecystitis surgical pathology. Fifty-seven percent of the patients demonstrated a GBEF <38%, 30% had a GBEF >80%, and 13% had a GBEF 38%-80% with a postoperative symptom resolution around 82%, 77%, and 100%, respectively. GBEF alone may not be determinative regarding gallbladder pathology or postoperative symptom relief in patients that present with typical symptoms. Regarding dyskinetic gallbladders, elevated and decreased GBEF groups were not significantly different in terms of surgical pathology or symptom relief. These patients may benefit from being treated as a single group rather than as separate entities. Elevated and decreased GBEF groups demonstrated mostly normal ultrasound results that raised concern for the utility of ultrasound as a rule out test for gallbladder inflammation.

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