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CEN Case Reports

, Volume 7, Issue 2, pp 237–242 | Cite as

A case of congenital left ventricular diverticulum in a patient with autosomal dominant polycystic kidney disease: possible mechanistic link between polycystin and ventricular diverticulum

  • Seishi Aihara
  • Shunsuke Yamada
  • Hidenori Matsusaka
  • Rami Tashiro
  • Hideaki Oka
  • Taro Kamimura
  • Atsumi Harada
  • Toshiaki Nakano
  • Takanari Kitazono
  • Kazuhiko Tsuruya
Case Report

Abstract

A 40-year-old woman had been followed as an outpatient to manage chronic kidney disease secondary to autosomal dominant polycystic kidney disease (ADPKD). Atrial premature contraction was found incidentally on an electrocardiogram during her regular follow-up examination. Subsequent transthoracic echocardiography detected an abnormal structure located very close to the left ventricular outflow tract (23 mm long × 15 mm wide in diastole). The structure was finally diagnosed as congenital left ventricular diverticulum (CLVD) using transesophageal echocardiography, contrast-enhanced computed tomography, and magnetic resonance imaging. Although CLVD occasionally causes intraventricular coagulation, lethal arrhythmia, and congestive heart failure, the size and location of her diverticulum remained unchanged over time and a 24-h Holter electrocardiogram showed no lethal arrhythmias. Accordingly, neither anticoagulation therapy nor surgical resection of the diverticulum was performed. To the best of our knowledge, ours is the first case of CLVD in a patient with ADPKD. Because gene abnormalities in polycystin coding are mechanistically related to the development of colonic diverticulum and abnormal cyst formation in ADPKD patients, we suspected that CLVD and abnormal cyst formation were related to the same gene abnormality in ADPKD. More case reports, case series studies, and basic research are required to determine whether CLVD in ADPKD is mechanistically associated with abnormal polycystin or just a coincidence.

Keywords

Atrium Autosomal dominant polycystic kidney disease Congenital left ventricular diverticulum Polycystin 

Notes

Acknowledgements

We thank Jane Charbonneau, DVM, from Edanz Group (http://www.edanzediting.com/ac) for editing a draft of this manuscript.

Compliance with ethical standards

Conflict of interest

The authors declare no conflicts of interest.

Human and animal rights

This article does not contain any studies with human participants or animals performed by any of the authors.

Informed consent

Written informed consent was obtained from the patient for publication of this case report and accompanying images.

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Copyright information

© Japanese Society of Nephrology 2018

Authors and Affiliations

  • Seishi Aihara
    • 1
  • Shunsuke Yamada
    • 4
  • Hidenori Matsusaka
    • 2
  • Rami Tashiro
    • 3
  • Hideaki Oka
    • 1
  • Taro Kamimura
    • 1
  • Atsumi Harada
    • 1
  • Toshiaki Nakano
    • 4
  • Takanari Kitazono
    • 4
  • Kazuhiko Tsuruya
    • 4
    • 5
  1. 1.Division of Kidney CenterMatsuyama Red Cross HospitalMatsuyamaJapan
  2. 2.Department of Cardiovascular MedicineMatsuyama Red Cross HospitalMatsuyamaJapan
  3. 3.Department of RadiologyMatsuyama Red Cross HospitalMatsuyamaJapan
  4. 4.Department of Medicine and Clinical Science, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
  5. 5.Department of Integrated Therapy for Chronic Kidney Disease, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan

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