• Title/Summary/Keyword: Cardiovascular

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Intracardiac Thrombosis Involving All Four Cardiac Chambers after Extracardiac Membranous Oxygenation Associated with MTHFR Mutations

  • Kim, Bong Jun;Song, Seung Hwan;Shin, Yu Rim;Park, Han Ki;Park, Young Hwan;Shin, Hong Ju
    • Journal of Chest Surgery
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    • v.49 no.3
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    • pp.207-209
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    • 2016
  • A 4-month-old boy diagnosed with acute myocarditis was treated with extracorporeal membrane oxygenation (ECMO). Follow-up echocardiography eight hours after ECMO revealed intracardiac thrombosis involving all four heart chambers. Because of the high risk of systemic embolization due to a pedunculated thrombus of the aortic valve, we performed an emergency thrombectomy. After the operation, the patient had a minor neurologic sequela of left upper arm hypertonia, which had almost disappeared at the last outpatient clinic two months later. He was diagnosed with a major mutation in MTHFR (methylenetetrahydrofolate reductase), which is related to thrombosis.

Central-Approach Surgical Repair of Coarctation of the Aorta with a Back-up Left Ventricular Assist Device for an Infant Presenting with Severe Left Ventricular Dysfunction

  • Kim, Tae Hoon;Shin, Yu Rim;Kim, Young Sam;Kim, Do Jung;Kim, Hyohyun;Shin, Hong Ju;Htut, Aung Thein;Park, Han Ki
    • Journal of Chest Surgery
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    • v.48 no.6
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    • pp.407-410
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    • 2015
  • A two-month-old infant presented with coarctation of the aorta, severe left ventricular dysfunction, and moderate to severe mitral regurgitation. Through median sternotomy, the aortic arch was repaired under cardiopulmonary bypass and regional cerebral perfusion. The patient was postoperatively supported with a left ventricular assist device for five days. Left ventricular function gradually improved, eventually recovering with the concomitant regression of mitral regurgitation. Prompt surgical repair of coarctation of the aorta is indicated for patients with severe left ventricular dysfunction. A central approach for surgical repair with a back-up left ventricular assist device is a safe and effective treatment strategy for these patients.

Cytomegalovirus Myocarditis Required Extracorporeal Membrane Oxygenation Support Followed by Ganciclovir Treatment in Infant

  • Kim, Bong Jun;Jung, Jo Won;Shin, Yu Rim;Park, Han Ki;Park, Young Hwan;Shin, Hong Ju
    • Journal of Chest Surgery
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    • v.49 no.3
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    • pp.199-202
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    • 2016
  • A 7-month-old girl with no medical history was treated with mechanical circulatory support due to myocarditis. Her cardiac contractility did not improve despite more than one week of extracorporeal membrane oxygenation treatment. Thus, we planned a heart transplant. However, a high level of cytomegalovirus was found in blood laboratory results by quantitative polymerase chain reaction. The patient's heart contractility recovered to normal range four days after ganciclovir treatment. She was discharged with slightly decreased cardiac contractility with a left ventricular ejection fraction of 45%.

Left Atrial Decompression by Percutaneous Left Atrial Venting Cannula Insertion during Venoarterial Extracorporeal Membrane Oxygenation Support

  • Kim, Ha Eun;Jung, Jo Won;Shin, Yu Rim;Park, Han Ki;Park, Young Hwan;Shin, Hong Ju
    • Journal of Chest Surgery
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    • v.49 no.3
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    • pp.203-206
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    • 2016
  • Patients with venoarterial extracorporeal membrane oxygenation (ECMO) frequently suffer from pulmonary edema due to left ventricular dysfunction that accompanies left heart dilatation, which is caused by left atrial hypertension. The problem can be resolved by left atrium (LA) decompression. We performed a successful percutaneous LA decompression with an atrial septostomy and placement of an LA venting cannula in a 38-month-old child treated with venoarterial ECMO for acute myocarditis.

Concomitant Right Ventricular Outflow Tract Cryoablation during Pulmonary Valve Replacement in a Patient with Tetralogy of Fallot

  • Shin, Hong Ju;Song, Seunghwan;Shin, Yu Rim;Park, Han Ki;Park, Young Hwan
    • Journal of Chest Surgery
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    • v.50 no.1
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    • pp.41-43
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    • 2017
  • A 38-year-old female patient with a history of tetralogy of Fallot repair at 10 years of age underwent pulmonary valve replacement with a mechanical prosthesis, tricuspid annuloplasty, and right ventricular outflow tract cryoablation due to pulmonary regurgitation, tricuspid regurgitation, and multiple premature ventricular contractions with sustained ventricular tachycardia. After surgery, she had an uneventful postoperative course with arrhythmia monitoring. She was discharged without incident, and a follow-up Holter examination showed a decrease in the number of ventricular ectopic beats from 702 to 41.

Tricuspid Valve Re-Repair in Ebstein Anomaly Using the Cone Technique

  • Kim, Do Jung;Suh, Jee Won;Shin, Yu Rim;Shin, Hong Ju;Park, Han Ki
    • Journal of Chest Surgery
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    • v.49 no.1
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    • pp.35-38
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    • 2016
  • The management of recurrent tricuspid regurgitation after tricuspid valve repair in patients with Ebstein anomaly is difficult, and tricuspid valve replacement is most commonly performed in such patients. We report two cases of recurrent tricuspid regurgitation in patients with Ebstein anomaly that were successfully re-repaired using the cone technique. The cone repair technique is a useful surgical method for reconstructing a competent tricuspid valve, and can be applied in patients who have undergone previous tricuspid valve repair.