Dye Image Cardioscopy for Detecting Heart Damage
Author Information
Author(s): MASAHITO KANAI, TAKESHI SAKURAI, KUNIO YOSHINAGA, KANEYUKI AOYAGI, TAKASHI HITSUMOTO, MASAKI YOSHINUMA, TAKASHI UCHI, HIROFUMI NOIKE, HIDEFUMI OHSAWA, KOUHEI KAWAMURA, KEIICHI TOKUHIRO, MAKIKO TAKAHASHI, TADASHI EBIHARA, KEIICHI TACHIHARA, YASUMI UCHIDA
Primary Institution: Toho University Hospital at Sakura
Hypothesis
Endocardial damages exist in patients with ischemic heart disease.
Conclusion
Endocardial damage was frequently observed in patients with angina pectoris and dilated cardiomyopathy, indicating that even apparently intact heart tissue can be affected.
Supporting Evidence
- 63% of patients with angina pectoris showed endocardial staining before biopsy.
- 100% of biopsied portions were stained after biopsy.
- 73% of patients with dilated cardiomyopathy showed endocardial staining before biopsy.
- 38% of patients with chest pain syndrome showed endocardial staining before biopsy.
Takeaway
Doctors used a special dye to see if there was damage inside the hearts of sick patients, and they found that many had hidden problems.
Methodology
Patients underwent percutaneous dye image cardioscopy after routine cardiac catheterization, where Evans blue dye was injected into the left ventricle.
Limitations
The study was experimental and involved a small sample size.
Participant Demographics
35 patients with heart disease, including 16 with angina pectoris, 11 with dilated cardiomyopathy, and 8 with chest pain syndrome.
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