1.Current Status of Surgical Training by Young Cardiovascular Surgeons and Their Intention for Off the Job Training System
Takanori TSUJIMOTO ; Hisayuki HONGU ; Kohei TONAI ; Takashi NAGASE ; Kazuki NODA ; Yuta KITAGATA
Japanese Journal of Cardiovascular Surgery 2024;53(1):1-U1-1-U5
Surgical proficiency significantly impacts cardiovascular surgery outcomes. Regular training for surgical procedures is essential. Since 2018, cardiovascular surgery's specialty system has mandated Off the Job Training (OffJT), defined as non-clinical work training that fulfills certification criteria. A minimum of 30h of OffJT is required for specialty acquisition. Presently, a review is being conducted to examine disparities in OffJT credit acquisition across various facilities and the lack of a standardized OffJT curriculum. This report details a survey of the current OffJT landscape, focusing primarily on executives under 40 years old. We employed a questionnaire-based approach to explore the types of training being conducted and the innovative strategies being implemented, along with an analysis of the findings.
2.The Application and Pitfalls for Registering New Japanese Board of Cardiovascular Surgery
Hironobu NISHIORI ; Takahiro ITO ; Kohei TONAI ; Rihito TAMAKI ; Yukika KAMEDA ; Yuta KITAGATA ; Taisuke SHIBUYA ; Takao MIKI ; Go MIYAZAKI ; Kaori MORI ; Misato TOKIOKA
Japanese Journal of Cardiovascular Surgery 2023;52(6):6-U1-6-U6
The first examination of the new board of the Japanese cardiovascular surgery took place in 2022. As it is a transitional period for the new system, many doctors are not familiar with the changes and details of the new system, and some have their concerns. Here, we held a round-table discussion with doctors who actually took the new board of the Japanese cardiovascular surgery under the new system, and we summarized their opinion.
3.A Case in Which Mitral Valve Replacement Was Performed for Recurrent Severe Mitral Regurgitation by Single Leaflet Device Attachment (SLDA) after MitraClip
Yuta KITAGATA ; Hiroshi TSUNEYOSHI ; Chikara UEKI ; Ken YAMANAKA ; Masahiro HIRANO
Japanese Journal of Cardiovascular Surgery 2020;49(3):119-122
After a MitraClip was implanted for mitral regurgitation (MR), we experienced a case in which mitral valve replacement was performed for recurrent severe MR because of a detached MitraClip. The case was an 82-year-old woman. The MitraClip was implanted for severe MR and regurgitation was controlled to a mild level, but one month after the operation, symptoms of heart failure appeared, and single leaflet device attachment (SLDA) with severe MR was observed on the echocardiogram. As the heart failure symptoms recurred, surgical mitral valve replacement was performed. Because of severe kyphosis, the left atrial approach with a midline sternum incision made it difficult to achieve a good operative field and this was changed intraoperatively to a transseptal approach. The MitraClip was firmly fused with the anterior leaflet A2, so it was judged that removal of the clip was difficult and valve repair was impossible ; it was thus decided to replace the valve. The mark of the MitraClip could be observed on the posterior leaflet, and it appeared to have been inserted for only about 1-2 mm. A bioprosthetic valve was implanted, preserving the posterior leaflet. There were no problems in weaning the patient from cardiopulmonary bypass. The postoperative course was uneventful, and she was discharged on the 14th day after the operation. Valve repair is difficult in a case with a merged SLDA after insertion of a MitraClip, and valve replacement needs to be performed, so it is important to pay attention to the attachment of the MitraClip.
4.Successful Heparin Management Using HMS PLUS for a Patient with Endocarditis and Antiphospholipid Syndrome Undergoing Valve Replacement
Yuta KITAGATA ; Hiroshi TSUNEYOSHI ; Hideyuki KATAYAMA ; Takumi WADA ; Kenta YAMADA
Japanese Journal of Cardiovascular Surgery 2022;51(5):280-284
A 71-year-old woman was diagnosed with antiphospholipid antibody syndrome following an acute myocardial infarction and had been taking anticoagulants ever since. Three years later, she was hospitalized with high fever and substantial fatigue. She was diagnosed with infective endocarditis because the blood culture was positive, and scattered cerebral infarction was seen on magnetic resonance imaging, along with an iliopsoas muscle abscess and purulent discitis. She was treated with antibiotics, and her blood culture became negative; however, she was referred to our hospital for surgical treatment because of severe mitral regurgitation due to the progressive valve destruction. She also had aortic regurgitation and underwent mitral and aortic valve replacement. The mitral valve exhibited strong thickening of both leaflets, including the subvalvular tissue, and perforation was observed in the posterior leaflet, P2. The operation time was 4 h and 2 min, and the aortic clamp time was 92 min. The culture of the mitral valve leaflet was negative. She had antiphospholipid antibody syndrome and intraoperative activated clotting time (ACT) management was difficult; therefore, her heparin blood levels were measured and managed using HMS PLUS. The target heparin blood concentration during cardiopulmonary bypass was set at 3 mg/kg and controlled; no thrombotic tendency or increase in circuit pressure was observed during the operation, and the procedure was completed without any problem. She resumed heparin administration 6 h after the operation and continued oral anticoagulant therapy. She recovered without problems and was discharged 12 days after the operation. Management using HMS PLUS may be useful in patients with antiphospholipid syndrome undergoing cardiovascular surgery.
5.Cardiac Tumor Resection through Right Mini-thoracotomy
Kiyotaka SUZUKI ; Hiroshi TSUNEYOSHI ; Takehide AKIMOTO ; Chikara UEKI ; Ken YAMANAKA ; Masahiro HIRANO ; Yuta KITAGATA
Japanese Journal of Cardiovascular Surgery 2020;49(5):267-270
We herein report a case of cardiac tumor resection through a right mini-thoracotomy. A 48-year-old man exhibited no symptoms. A mass was detected incidentally in the right atrium on computed tomography. We performed resection under cardiopulmonary bypass through a right mini-thoracotomy. Histopathological examination confirmed that this tumor was a lipoma. The patient's postoperative recovery was uneventful. He was discharged on postoperative day 6. As cardiac tumor resection through right mini-thoracotomy is minimally invasive, this approach may be useful for surgery in cases of benign cardiac tumors.
6.Placement of an Open Stent Graft for Treatment of a Distal Aortic Arch Aneurysm and Migrated Stent Graft Nine Years after TEVAR for Stanford Type B Dissection
Yuta KITAGATA ; Daisuke HEIMA ; Michiya HANYU ; Takaaki KOSHIJI ; Hideo KANEMITSU
Japanese Journal of Cardiovascular Surgery 2024;53(1):43-47
A 76-year-old man who underwent thoracic endovascular aortic repair (TEVAR) of an early chronic phase of Stanford type B dissection developed a 71 mm distal aortic arch aneurysm in conjunction with the migration of its proximal end over 9 years of follow-up. The proximal end of the graft had migrated 7 cm distal to the takeoff of the left subclavian artery. The patient underwent total arch replacement with an open stent graft which was connected with the TEVAR graft. He was discharged home 15 days after surgery without complications.