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RESEARCH ARTICLE
Year : 2014  |  Volume : 3  |  Issue : 1  |  Page : 1

Diagnostic pitfalls and challenges in interpretation of heart transplantation rejection in endomyocardial biopsies with focus on our experience


1 Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IR Iran
2 Cardiovascular Intervention Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IR Iran
3 Echocardiography Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IR Iran

Correspondence Address:
Hooman Bakhshandeh
Cardiovascular Intervention Research Center, Rajaie Cardiovascular Medical and Research Center, Vali-e-Asr St., Niayesh Blvd, Tehran
IR Iran
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Source of Support: None, Conflict of Interest: None


DOI: 10.5812/cardiovascmed.13986

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Background: The current trend of heart transplantation in recent years has taken a quantum leap forward. We decided to look back at our experience in this center. Objectives: Here, we focus on the diagnostic pitfalls and challenges in these biopsies. Patients and Methods: Forty two patients based on the standard protocol of heart transplantation group, yielded 63 biopsy samples over a period of 33 months (April 2010 - December 2012). The mean age was 30.4 years (ranging from 16 to 58 years) with 51 males (81%) and 12 females (19%). All the patients were examined periodically and biopsy samples were taken from the right ventricular wall. Results: Rarely fewer than three pieces of myocardial samples were procured. Scar, adipose tissues and blood clots may be seen instead. Quilty effect (nodular endocardial lesions composed of inflammatory cell infiltrates) was seen in 8 cases (12.7%). Other findings not directly related to rejection including early ischemic injury, Quilty effect and post-transplant lymphoproliferative disorders (PTLD) were not encountered. Conclusions: Specimen inadequacy was not a major problem in our center. It poses a great limitation, because suboptimal specimens sometimes mislead the pathologist. Other findings especially Quilty effect were within the range defined for this finding.


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