Two Cases of Pulmonary Embolectomy Using Retrograde Pulmonary Perfusion for Acute Pulmonary Thromboembolism / 日本心臓血管外科学会雑誌

Pulmonary thromboembolism (PTE) is a life-threatening disease, and in severe cases is required surgical treatment. Emergency pulmonary embolectomy using retrograde pulmonary perfusion (RPP) as an adjunct was successfully performed in 2 patients suffering from massive acute PTE. After removal of the pulmonary thrombus via incision of the pulmonary artery trunk, RPP via the right upper pulmonary vein was performed, which enabled the removal of residual thrombotic material and air from the peripheral branches of pulmonary arteries.

An Idiopathic Pulmonary Artery Aneurysm, Treated by Aneurysmectomy and Graft Replacement / 日本心臓血管外科学会雑誌

<p>A 61-year old man was referred to our institute under a diagnosis of pulmonary aneurysm. Contrast computed tomography revealed a huge pulmonary aneurysm of 70 mm in maximal dimension at the main pulmonary trunk. No congenital heart disorders were identified on trans-thoracic or trans-esophageal echocardiography. No significant signs of pulmonary hypertension were demonstrated on right heart catheterization. Laboratory findings on admission included positive results for syphilitic antibodies. T-shaped graft replacement of the pulmonary arteries using a cardiopulmonary bypass was scheduled. The main and left pulmonary arteries were replaced with a J-Graft 26 mm in size (Japan Lifeline, Tokyo, Japan). Then, the right pulmonary artery was reconstructed with the rest of the J-Graft, and anastomosed to the side of the newly reconstructed main and left pulmonary arteries. His postoperative course was generally uneventful. Pathological findings of the excised aneurysmal walls revealed true aneurysmal formation with no specific inflammatory changes. This case was considered to be an idiopathic pulmonary aneurysm without congenital heart disorders, pulmonary hypertension, and pathologically inflammatory reactions of aneurysmal walls.</p>

Minimally Invasive Aortic Valve Replacement for Jehovah's Witness / 日本心臓血管外科学会雑誌

A 64-year-old man with a diagnosis of aortic valve stenosis presented with chest pain. The patient is a Jehovah's Witnesses and wanted surgery without blood transfusion. Therefore, we planned minimally invasive aortic valve replacement (MICS AVR) avoiding sternotomy. He underwent aortic valve replacement with a mechanical valve (ATS AP360 20 mm) through a right anterolateral thoracotomy at the fourth intercostal space. The value of hemoglobin was 11.2 g/dl after surgery. He recovered uneventfully and was discharged 17 days after surgery. MICS AVR has the advantage of less risk of bleeding, therefore MICS AVR is useful for Jehovah's Witness patients who refuse blood transfusion.

Endovascular Aneurysmal Repair for an Aortoenteric Fistula / 日本心臓血管外科学会雑誌

We report a case of secondary aortoenteric fistula (SAEF). A 76-year-old man who had undergone bifurcated graft replacement for an abdominal aortic aneurysm 18 years previously was admitted to our hospital on 2008. Since the patient was in hemorrhagic shock and had several comorbidities, he first underwent emergency endovascular aneurysmal repair (EVAR). The patient recovered from shock, and then the duodenal fistula was closed and a temporary tube enterostomy was made on the next day. The patient's recovery was uneventful and he was discharged 34 days after EVAR without any sign of infection. However, the patient was admitted for a recurrent SAEF 16 months after the procedure. Although emergency surgery was performed, he died due to sepsis 11 days after surgery. EVAR could be useful to control bleeding associated with SAEF ; however, it would be necessary for a long-term results to perform additional radical surgery subsequently to ensure the patients' hemodynamic recovery.

A Case of Total Arch Replacement Using the Branched Graft Inversion Technique / 日本心臓血管外科学会雑誌

Distal anastomosis during total arch replacement (TAR) for thoracic aortic aneurysm (TAA) is often difficult to perform because of the limited surgical view. The most common methods available are direct anastomosis of a 4-branched graft to the distal aorta, or stepwise anastomosis with the elephant trunk procedure. However, the stepwise technique requires graft-to-graft anastomosis, which is often associated with bleeding. In the present study, we developed a new approach, which we have termed the “Branched Graft Inversion technique”, which does not require anastomosis between grafts, and facilitates anastomosis with a view equal to that in the stepwise technique. A 65-year-old man with a diagnosis of saccular-type thoracic aortic aneurysm was admitted. Cardiopulmonary bypass was established by cannulating the ascending aorta and femoral artery via a median sternotomy. We performed distal anastomosis under selective cerebral perfusion during hypothermic circulatory arrest (25°C). An inverted branched graft was inserted into the descending aorta and anastomosed using mattress and running sutures together with outer reinforcement with a Teflon felt strip. The distal end of the inverted branched graft was then extracted, and reconstruction of the neck vessels and proximal anastomosis were performed. Our newly developed Branched Graft Inversion technique was useful during TAR for TAA.

A Penetrating Cardiac Injury by a Needle Which Was Buried in the Heart / 日本心臓血管外科学会雑誌

A-23-year-old man, with intellectual disability and history of self-inflicted injuries, presented with chest pain. A 3mm “picked” wound in the left chest was observed on physical examination. Chest computed tomography revealed a needle in the pericardium. Emergency surgery was performed by median sternotomy. At first we could not find the needle because it was completely buried in the heart, but when the posterior wall of the heart was exposed, the head of the needle appeared protruding from the posterior wall. It was removed and the wound of the posterior wall was closed with direct mattress sutures without cardio-pulmonary bypass. On inspection, the needle was 34mm long.

Aortic Arch Replacement for Thoracic Aortic Aneurysm Combined with Aberrant Right Subclavian Artery: Two Case Reports / 日本心臓血管外科学会雑誌

We present two cases of thoracic aortic aneurysm combined with aberrant right subclavian artery. Case 1 was a 71-year-old man, and case 2 was a 74-year-old man with an aortic arch aneurysm associated with a diverticulum of Kommerell. In both cases, we performed total aortic arch replacement through median sternotomy using cardiopulmonary bypass, systemic hypothermia and selective cerebral perfusion. We reconstructed all 4 arch branches. The aberrant right subclavian artery arose from the distal portion of the aortic arch, distal to the origin of the left subclavian artery. It crossed the midline between the esophagus and spine. To prevent compression of the trachea and esophagus by the right subclavian artery, we reconstructed it by the anterior side of the trachea. The postoperative course was uneventful.