Clinical and Experimental Nephrology

, Volume 15, Issue 1, pp 147–150

A suspected case of paradoxical renal embolism through the patent foramen ovale

  • Masaki Iwasaki
  • Nobuhiko Joki
  • Yuri Tanaka
  • Hidehiko Hara
  • Makoto Suzuki
  • Hiroki Hase
Case Report


We experienced a case of cryptogenic renal infarction in a previously healthy 60-year-old man. He had no systemic atherosclerotic changes. Holter monitoring revealed no atrial fibrillation. Transthoracic echocardiography showed no thrombus. Because the onset occurred while he was swinging a golf club (a similar maneuver to holding the breath), further examination was performed with a view to detecting paradoxical embolism through the foramen ovale. A positive bubble test with the Valsalva maneuver during transesophageal echocardiography led to the diagnosis of patent foramen ovale (PFO). This was a suspected case of paradoxical embolism through a PFO leading to renal infarction.


Renal infarction Paradoxical embolism Valsalva maneuver Patent foramen ovale 


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Copyright information

© Japanese Society of Nephrology 2010

Authors and Affiliations

  • Masaki Iwasaki
    • 1
  • Nobuhiko Joki
    • 1
  • Yuri Tanaka
    • 1
  • Hidehiko Hara
    • 2
  • Makoto Suzuki
    • 2
  • Hiroki Hase
    • 1
  1. 1.Division of NephrologyToho University Ohashi Medical CenterTokyoJapan
  2. 2.Division of Cardiovascular MedicineToho University Ohashi Medical CenterTokyoJapan

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