• Journal of Cardiovascular Imaging
• /
• 제31권3호
• /
• pp.145-149
• /
• 2023

BACKGROUND: ¹⁸F-sodium fluoride positron emission tomography/computed tomography (¹⁸F-NaF PET/CT) has been proven to be useful in identification of microcalcifications, which are stimulated by inflammation. Blood speckle imaging (BSI) is a new imaging technology used for tracking the flow of blood cells using transesophageal echocardiography (TEE). We evaluated the relationship between turbulent flow identified by BSI and inflammatory activity of the aortic valve (AV) as indicated by the ¹⁸F-NaF uptake index in moderate aortic stenosis (AS) patients. METHODS: This study enrolled 18 moderate AS patients diagnosed within the past 6 months. BSI within the aortic root was acquired using long-axis view TEE. The duration of laminar flow and the turbulent flow area ratio were calculated by BSI to demonstrate the degree of turbulence. The maximum and mean standardized uptake values (SUVmax, SUVmean) and the total microcalcification burden (TMB) as measured by ¹⁸F-NaF PET/CT were used to demonstrate the degree of inflammatory activity in the AV region. RESULTS: The mean SUVmean, SUVmax, and TMB were 1.90 ± 0.79, 2.60 ± 0.98, and 4.20 ± 2.18 mL, respectively. The mean laminar flow period and the turbulent area ratio were 116.1 ± 61.5 msec and 0.48 ± 0.32. The correlation between SUVmax and turbulent flow area ratio showed the most positive and statistically significant correlation, with a Pearson's correlation coefficient (R²) of 0.658 and a p-value of 0.014. CONCLUSIONS: The high degree of trans-aortic turbulence measured by BSI was correlated with severe AV inflammation.

• Journal of Chest Surgery
• /
• 제37권12호
• /
• pp.999-1002
• /
• 2004

흉부관통상 환자에서 심장손상이 의심될 때 신속한 이송, 조기 진단 및 체계적인 수술적 치료는 좋은 결과를 얻을 수 있다. 생명을 위협하는 응급상황에서 심장손상의 정도를 진단하는 것은 어려울 수도 있다. 13세 남아가 칼에 의한 흉부 관통상을 입고 흉관으로부터 과도한 출혈이 있어 본원 흉부 외과로 전원되었다. 단순 흉부촬영에서 좌측페야에 균일한 음영 증가가 관찰되었다. 그는 의식이 혼미했으며 생체의 징후는 불안정하여 신속히 수술실로 옮겼다. 소생술 후 정중 흉골절개술을 통해 좌심실 열상을 봉합하였다. 수술 중 시행한 경식도 심초음파에서 심실중격결손에 의한 단락이 발견되었고 좌심실절개하에 데크론 첨포(Dacron patch)를 이용하여 정복하였다. 수술 후 경과는 좋았으며 심실중 격결손을 통한 작은 단락이 있었으나 추적 관찰하기로 하고 퇴원하였다.

• Investigative Magnetic Resonance Imaging
• /
• 제20권2호
• /
• pp.132-135
• /
• 2016

We report the case of a 43-year-old male with both giant left atrial appendage (LAA) aneurysm and drug-refractory atrial fibrillation (AF). The patient was treated with percutaneous electrical isolation of cardiac arrhythmogenic substrate, and has been free of AF symptom over one year. Although the surgical resection of giant LAA aneurysm is mostly used to prevent systemic thromboembolism, we have performed follow-up of the giant LAA aneurysm using cardiac magnetic resonance (CMR) imaging and transesophageal echocardiography (TEE) after the successful catheter ablation of refractory AF. At one-year follow-up CMR, the giant LAA aneurysm showed remarkable enlargement as well as decreased contractility. Additionally, one-year follow-up TEE showed spontaneous echo contrast as an indicator of blood stasis in the giant LAA aneurysm. Those findings of giant LAA aneurysm suggest that the risk of thromboembolism may be high despite termination of AF.

• Journal of Chest Surgery
• /
• 제37권5호
• /
• pp.448-451
• /
• 2004

개심술 후 폐색전증을 동반한 우심방 혈전의 발생 예는 매우 드물다. 10개월 전 심방중격결손 수술을 받았던 54세 여자 환자가 좌측 흉막통과 호흡곤란을 주소로 응급실에 내원하였다. 폐관류주사 검사에서 다발성 분절성 관류 결손 소견을 보였고 경식도 초음파 검사에서 우심방 벽에 위치하는 크고 줄기가 있는 움직이는 종괴가 발견되었다. 헤파린 치료 시작 13일 후 시행한 심초음파 검사에서 크기가 전혀 줄어들지 않아 개심술하에 종괴를 제거하였다. 병리 소견에서 우심방 기질성 혈전으로 밝혀졌고, 수술 후 환자는 별 문제 없이 회복되었으며 퇴원 후 와파린 치료를 받고 있다.

• Journal of Chest Surgery
• /
• 제49권1호
• /
• pp.42-45
• /
• 2016

Thrombosis at the left ventricular outflow tract occurs without any detectable heart disease or predisposing factors only extremely rarely. A 48-year-old male visited Konkuk University Medical Center with loss of consciousness one month prior to presentation. Before he visited our hospital, he had been diagnosed with a cardiac tumor, which was located between the left atrium and posterior aortic root, and which was adjacent to both the aortic and mitral valves. Cardiac transplantation was recommended at the other hospital because of the high risk of cardiac dysfunction induced by both aortic and mitral valvular dysfunction after surgical resection. Based on preoperative transthoracic echocardiography, cardiac computed tomography, cardiac magnetic resonance imaging, and intraoperative transesophageal echocardiography, we considered it to be a benign tumor. Complete resection was achieved and the pathology confirmed organizing thrombus. We report a case of organizing thrombus mimicking a cardiac tumor, which was located at the mitral-aortic intervalvular fibrosa of the left ventricular outflow tract without any heart disease.

• Journal of Chest Surgery
• /
• 제26권9호
• /
• pp.710-713
• /
• 1993

Congenital coronary fistula is a rare condition, and with widespread use of cardiac catheterization, angiography and selective coronary arteriography are being recognized with increasing frequency. Fistula originating from the right coronary artery are more common than those from the left coronary artery. The fistula empties into the right side of the heart in 90% of the cases with the right ventricle being the most common recipient chamber, followed by the right atrium and the pulmonary artery. We report a case of congenital coronary artery fistula of the right coronary artery to the left ventricle with significant shunt in a 20 - year old female. It was detected by transthoracic and transesophageal echocardiography and confirmed by cardiac catheterization and coronary angiography. The fistula opening was closed with 6-0 Prolene continuously under cardiopulmonary bypass and moderate hypothermia [ 28 oC ]. Postoperative course was uneventful and the patient was discharged without specific problem.

• Journal of Chest Surgery
• /
• 제36권8호
• /
• pp.606-609
• /
• 2003

혈전성 뇌경색에 의한 실어증으로 70세 남자 환자가 입원하여 혈전에 대한 원인을 조사하던 중 경식도 초음파검사와 흉부 자기공명영상에서 혈류가 없는 우심방의 낭성종양으로 진단되었다. 종양은 균질성으로 혈전보다는 종양(점액종)으로 의심되었다. 종양은 심방중격의 일부와 함께 정상 체온 체외순환 상태에서 제거되었고 조직학적으로 피가 고여 있는 폐쇄성 심방중격류로 판명되었다. 이에 문헌 고찰과 함께 한 드문 증례를 보고하는 바이다.

• Journal of Chest Surgery
• /
• 제52권5호
• /
• pp.368-371
• /
• 2019

A unicuspid aortic valve is a rare congenital malformation that frequently presents with valvular dysfunction and dilatation or aortic aneurysm, requiring combined aortic valve surgery and aortic repair. Some patients show severe valve calcification extending into the interventricular septum, possibly resulting in damage to the conduction system during debridement for valve replacement. We present a rare case of severe aortic stenosis with a unicommissural unicuspid aortic valve diagnosed by preoperative transesophageal echocardiography in a 36-year-old man. After composite graft replacement of the aortic valve, aortic root, and ascending aorta, a permanent pacemaker was placed because of postoperative complete heart block.

• Journal of Chest Surgery
• /
• 제55권4호
• /
• pp.293-300
• /
• 2022

Lung transplantation is the only treatment option for patients with end-stage lung disease. Although more than 4,000 lung transplants are performed every year worldwide, the standardized protocols contain no guidelines for monitoring during lung transplantation. Specific anesthetic concerns are associated with lung transplantation, especially during critical periods, including anesthesia induction, the initiation of positive pressure ventilation, the establishment and maintenance of one-lung ventilation, pulmonary artery clamping, pulmonary artery unclamping, and reperfusion of the transplanted lung. Anesthetic management according to the special risks associated with a patient's existing lung disease and surgical stage is the most important factor. Successful anesthesia in lung transplantation can improve hemodynamic stability, oxygenation, ventilation, and outcomes. Therefore, anesthesiologists must have expertise in transesophageal echocardiography, extracorporeal life support, and cardiopulmonary anesthesia and understand the pathophysiology of end-stage lung disease and the drugs administered. In addition, communication among anesthesiologists, surgeons, and perfusionists during surgery is important to achieve optimal patient results.

• 대한임상검사과학회지
• /
• 제56권3호
• /
• pp.228-235
• /
• 2024

경두개 초음파(transcranial doppler ultrasonography, TCD)를 이용한 난원공 개존증(patent foramen ovale)의 이상 유무를 측정하는 방법은 경식도 심장초음파검사(transesophageal echocardiography, TEE)에 비해 간단하고 비용이 저렴하며 비침습적이기 때문에 보다 효과적인 방법이다. 특이도 및 양성 예측도도 높기 때문에 TEE를 시행하기 어렵거나 합병증 고위험군인 경우 좋은 대체 검사가 될 수 있다. 그래서 본 연구에서는 TCD를 통해 보다 효과적이고 정확한 검사결과를 얻기 위한 방법으로 blood 사용 유무와 환자 자세에 따른 실증적 결과 비교를 통해 적절한 방법을 제안함으로써 진단에 도움을 주고자 한다. Blood 사용 여부와 환자 자세에 따른 결과를 비교하였고, 양쪽 중간대뇌동맥(middle cerebral artery)이 모두 관찰된 환자를 대상으로 하였다. 그리고 측두부창이 불량인 경우는 뇌바닥동맥(basilar artery)으로 대체해서 비교하였다. Blood를 혼합했을 때 positive가 더 많은 것으로 나타났다. Resting과 supine position using valsalva maneuver (VM) 보다 sitting position using VM에서 positive가 더 많은 것으로 나타났고 정확도도 더 높은 것으로 나타났다. 이에 blood를 혼합한 상태에서 sitting position using VM 방법이 가능하다면 시행하는 것이 좋을 것으로 생각된다.