2.A Case of Spindle Cell Type Medullary Carcinoma of the Thyroid Diagnosed by Immunocytochemistry
Satoshi IKEDA ; Atsushi Uchida ; Kazunari INOUE ; Keiko SUZUKI
Journal of the Japanese Association of Rural Medicine 2016;65(4):868-871
We report a case of spindle cell type medullary carcinoma of the thyroid in a 77-year-old man. Fine needle aspiration cytology showed numerous spindle cells without inflammation and hemorrhage. The spindle cells were uniform and exhibited no malignant features. Immunocytochemistry was positive for carcinoembryonic antigen and calcitonin, and the tumor was diagnosed as spindle cell type medullary carcinoma. There are various histological subtypes of medullary carcinoma, and diagnosis by cytomorphology alone is difficult. Preservation with LBC fixative was helpful for diagnosis by immunocytochemistry in this case.
3.Recent Surgical Results of Transverse Aortic Arch Replacement.
Tomoaki Suzuki ; Atsushi Takamori ; Fuyuhiko Yasuda ; Chiaki Kondo ; Manabu Okabe
Japanese Journal of Cardiovascular Surgery 2003;32(1):13-16
We report the results of aortic arch replacement in 32 patients (20 males, 12 females) with aortic arch aneurysm, including 9 emergency cases. The etiology of aneurysm was atherosclerotic aneurysm in 18 patients, pseudoaneurysm in 1 patient, and aortic dissection in 13 patients. Selective cerebral perfusion (SCP) and retrograde cerebral perfusion (RCP), which are used for brain protection during aortic arch reconstruction, were both employed in this study according to our institutional policy. RCP was started at the moment of circulatory arrest after which the aneurysm was opened. In the case of 1-branch reconstruction or hemiarch replacement, we only employed RCP. If 2-branch reconstruction or total arch replacement was needed, we switched to SCP. After the distal graft anastomosis was performed, antegrade systemic perfusion was started via the 4th branch of the graft. Subsequently, 3 arch vessels was reconstructed with rewarming to shorten the SCP time, and finally proximal graft anastomosis was performed. Distal graft anastomosis with a new technique was applied in the 10 most recent cases. The “cuff” was made at the distal anastomosis site of the graft beforehand and this “cuff” was sutured to the aortic wall in an elephant-trunk fashion. This technique was a simple approach to repairing the distal lesion and allowed easy addition of stitches in case's of bleeding. The in-hospital mortality rate was 6.3% (2 of 32 patients) and the rate of cerebrovascular accident was 6.3% (2 of 32 patients). This technique for aortic arch repair is a useful method that results in low rates of in-hospital mortality and morbidity.
4.Preparing Students for Overseas Clinical Rotations
Atsushi SHIMIZU ; Yuzo TAKAHASHI ; Yasuyuki SUZUKI ; Alan T. Lefor
Medical Education 2009;40(1):47-53
Medical students in Japan often want to do clinical rotations abroad. Preparation for these important clinical experiences is essential to maximize the learning opportunities. Language ability is only one small part of assuring success.1) It is important to consider the hospital where the rotation will take place, the specific rotation, the living arrangements and commuting to the hospital. Preparation before the rotation should include practice in performing and writing a complete patient history and physical examination.2) It is very helpful to have a cell phone while abroad, as well as a credit card. Students must bring a white coat, and it is recommended that they also bring a Japanese textbook in the field they will study.3) While on a clinical rotation, students must be active participants in patient care and in discussions. They must be aggressive about answering questions during ward rounds. Students must be aware of many cultural differences to have good relationships with patients and colleagues.
5.Right Pulmonary Artery Communication to a Left Atrium
Toshihiko Suzuki ; Kunikazu Hisamochi ; Hideo Yoshida ; Keiji Yunoki ; Yasufumi Fujita ; Atsushi Tateishi ; Tomoya Inoue
Japanese Journal of Cardiovascular Surgery 2015;44(3):141-143
PA-LA communication is a rare congenital heart disease consisting of direct communication between a branch of the PA and LA through an aneurysmal structure. This disease reveals the central cyanosis with clubbed fingers and surgical repair is needed when symptoms are apparent. Computed tomography is highly recommended for definitive diagnosis. Angiographic catheterization is also recommended to support the diagnosis and decide on the treatment. PA-LA communication is categorized into 4 types. Two types do not need cardiopulmonary bypass (CPB) when treated surgically, but the others need CPB. A 16-year-old girl with clubbed fingers was found to have PA-LA communication by 3DCT. She underwent surgery and was discharged in good condition. The surgical procedure was done through median sternotomy without CPB. The anomalous aneurysmal fistula was doubly ligated. No communication was found after ligation by TEE.
6.A Case of Ascending Aorta Replacement for Chronic Aortic Dissection by Minimally Invasive Cardiac Surgery
Yoshiki Endo ; Keita Kikuchi ; Kotaro Suzuki ; Takayoshi Matsuyama ; Dai Une ; Yasuhisa Fukada ; Atsushi Kurata
Japanese Journal of Cardiovascular Surgery 2015;44(5):266-270
The number of surgical treatments for acute aortic dissection in octogenarians is increasing. They should return to their daily life as soon as possible after the operation without any complications. Some literature reported that minimally invasive cardiac surgery (MICS) helps quick recovery for the patients. We report a case of minimally invasive ascending aorta replacement for Stanford type A chronic thrombosed aortic dissection in an octogenarian to help quick recovery. An 81-year-old man was admitted in our hospital suffering from chest and back pain. Enhanced CT scan showed Stanford type A acute thrombosed aortic dissection. The diameter of ascending aorta was 45 mm and the diameter of false lumen was 7 mm. Therefore we decided on medical treatment for this patient according to the guideline. After four weeks medical treatment, ascending aorta was dilated to 49 mm and the false lumen also expanded to 9 mm. He underwent minimally invasive ascending aorta replacement to help quick recovery considering his age. He was discharged 11 days postoperatively without any complications. MICS offers a better cosmetic result, less blood loss, less pain, better respiratory function and quick recovery. Thus, minimally invasive operation for the elderly is also very satisfactory.
7.Construction Case with an Electronic Hospital Formulary to Be Able to Do Rapid Retrieval Using a Portable Terminal iPhone®
Atsuro Sato ; Tetsushi Amano ; Atsushi Suzuki ; Hiroshi Sakata ; Kenichi Nomura ; Yukari Itakura
Japanese Journal of Drug Informatics 2011;13(1):8-12
Objective: The hospital is changing its formulary reference from paper-based to intranet. There was concern that both paper-based and intranet versions of the formulary would be necessary. Revising the paper-based hospital formulary each time package inserts are revised is difficult. For your review we report on the creation of the iPhone® electronic formulary which enables rapid off-line formulary retrieval and easy updates while at the same time providing low cost service in a light device.
Methods: The CSV (Comma Separated Value) of the hospital formulary dictionary was made using a standard personal computer. The CSV data file was converted using JAMES2DIC into a HTML file format. Next, the converted HTML file is transformed into the EPWING (Electronic Publishing WING) format using EBStudio. Finally, we forward the EPWING dictionary file from the personal computer to the iPhone®. The retrieval becomes possible by using EBPocket for iOS of EPWING/electronic book viewer software for the iPhone®. The number of items was assumed to be 29 items thought for a lot of inquiries to exist.
Results: We compared the paper-based formulary with the iPhone® electronic formulary. As a result, the iPhone4® electronic formulary shortened the retrieval time, was smaller, lighter, and excellent at a lower price.
Conclusion: The iPhone4® electronic formulary enables the user to perform complex full-text searches and retrieve information at a much higher speed than is possible with paper based formularies. It has the additional advantage of seamless integration and deployment of formulary additions or reference material revisions. We believe we have successfully created a practical electronic formulary.
8.Clinical Result of Consecutive 65 Cases of Minimally Invasive Direct Coronary Artery Bypass Grafting
Tomoaki Suzuki ; Manabu Okabe ; Mitsuteru Handa ; Atsushi Takamori ; Fuyuhiko Yasuda ; Yuo Kanamori
Japanese Journal of Cardiovascular Surgery 2003;32(5):272-275
Minimally invasive direct coronary artery bypass grafting (MIDCAB) has been performed in some institutions and mid-term results have been reported. However, because of its technical difficulty, the procedure has not been gaining acceptance among cardiovascular surgeons. We report the clinical results of our MIDCAB series and describe the effect and role of the MIDCAB in the therapy of ischemic heart disease. From May 1999 through May 2002, 65 patients (age 29 to 90 years) underwent MIDCAB via a small left thoracotomy. Postoperative angiography was performed before discharge in all patients. No conversions to sternotomy were necessary. There were no operative, hospital or mid-term mortalities, nor were these any major complications, including myocardial infarction, stroke, respiratory failure, and other organ failure. Wound infection occurred in 1 patient. No graft occlusion was seen. Graft stenosis was seen in only 1 patient. The graft patency rate was 98.5% (66/67). Postoperative cardiac events included 2 incidents of angina, and 4 of atrial fibrillation. There were no incidents of congestive heart failure. MIDCAB is a safe and less-invasive operation. According to our clinical results, MIDCAB is an alternative to conventional coronary artery bypass grafting for selected patients, especially for those at high risk.
9.Mitral Valve Repair for Infectious Endocarditis
Mitsuteru Handa ; Atsushi Takamori ; Tomokage Suzuki ; Fuyuhiko Yasuda ; Yuuo Kanamori ; Manabu Okabe
Japanese Journal of Cardiovascular Surgery 2004;33(4):240-243
Between January 1999 and August 2002, 13 patients with mitral regurgitation resulting from native valve endocarditis underwent surgery. The age of these patients was 54±13.8 years (range, 27 to 74 years); 8 patients were men. Five patients were categorized as New York Heart Association functional class III or IV. Endocarditis was active in 3 patients. Emergency or urgent surgery was required in 4 patients. Twelve patients underwent repair, and one had a valve replacement. Following the removal of all infected or nonviable tissue, a decision was made as to the possibility of repair. Repair was attemped in 13 patients and was successful in 12 patients. Most patients received ring annuloplasty with a Carpentier-Edward ring. Six patients had chordae ruptures, 5 patients had vegetations, and 2 patients had elongated chordae. Twelve patients were categorized as New York Heart Association functional class I, and one was categorized as class II at discharge. There were no hospital deaths. The mean follow-up of the 13 survivors was 24±14 months (range from 3 to 43 months). There were no late deaths, reoperations, recurrent endocarditis, thromboembolic events, or other valve-related morbidities. We conclude that mitral valve repair is an effective treatment for inective endocarditis with mitral regurgitation.
10.Midterm Results of Mitral Valve Repair with a Rigid Ring
Fuyuhiko Yasuda ; Mitsuteru Handa ; Atsushi Takamori ; Tomoaki Suzuki ; Yoichirou Miyake ; Yuuo Kanamori ; Manabu Okabe
Japanese Journal of Cardiovascular Surgery 2005;34(3):172-175
The purpose of this study was to analyze our results of mitral valve repair with a rigid annuloplasty ring (Carpentier-Edwards ring; Baxer-Edwards CVS Laboratories; Lrvine, Calif) in terms of its efficacy and safety. We have examined postoperative mitral regurgitation (MR) and left ventricular diastolic dimension (LVDd) in 63 cases of mitral valvoplasty during a period of 5 years. The operative methods were 20 cases of tendon reconstruction, 42 cases of quadrangular resection, and 15 cases of annuloplasty alone. Operative mortality and freedom from complications were examined at the mean 41.2 months after the operation. There were no operative deaths, and no case with severe MR postoperatively. From echocardiographic findings, the grade of MR changed from 3.13 to 0.28 postoperatively, and LVDd changed from 58.4±6.71 to 48.7±6.3ml postoperatively. Reoperation was performed in 2 cases (3.2%) several years after the first operation. The rate of midterm mortality was 4.8%. The postoperative mitral valve area was 2.85cm2 in size of 26mm ring, 2.95cm2 in size of 28mm, 3.09cm2 in size of 30mm, which were measured from PHT (pressure half time) of the Doppler echocardiography. In conclusion, mitral valve repair with rigid annuloplasty ring (CE ring) provided good results for MR at midterm follow-up.