1.A Case of Left Ventricular Pseudoaneurysm Associated with Infective Endocarditis after Double Valve Replacement
Takao Miki ; Toru Takahashi ; Jun Mohara
Japanese Journal of Cardiovascular Surgery 2017;46(3):126-129
A 66-year-old man experiencing fever and dyspnea was transferred to our hospital 2 years ago. He had been on hemodialysis for 30 years due to chronic renal failure and was observed as having aortic stenosis for 5 years. Severe mitral regurgitation and complete atrioventricular block caused by infective endocarditis (IE) were noted. Thus, he emergently underwent double-valve replacement (DVR) and pacemaker implantation. The range of infection extended widely to the right atrium and atrioventricular septum beyond the mitral annulus. The infection was suppressed by perioperative antibiotic therapy. Transthoracic echocardiography (TTE) revealed a cavity approximately 30 mm in diameter in the left ventricle, which was located under the mitral annulus, and it extended to the right atrium 3 months after the operation. A diagnosis of left ventricular pseudoaneurysm associated with IE was then made. Because of progressive expansion of the aneurysm, we performed another operation 2 years after the previous one. The pseudoaneurysm was located in the region of the Koch's triangle, which indicated that it was caused by mitral annular abscess. We closed the orifice of the aneurysm approximately 20 mm in diameter with a polyester patch with a diameter of 35 mm. Postoperative TTE showed that the pseudoaneurysm was thrombosed and had no blood flow. Pathological examination of the wall of the pseudoaneurysm revealed that it consisted of fibrous tissues without myocardium. We encountered a rare case treated by patch closure for the left ventricular pseudoaneurysm after DVR associated with IE.
2.Retrospective Study of 13 Unsuccessful Remission Cases among 53 Patients with Acute Leukemia.
Toru TAKAHASHI ; Masato HAYASHI ; Akira MIURA
Journal of the Japanese Association of Rural Medicine 1997;46(2):135-141
We performed a retrospective study on the clinical data of 13 remission failure cases in 53 patients who had received remission induction therapy for acute leukemia (AL) in our hospital over the past seven years.
The outstanding clinical manifestations of the remission failure cases, as compared with the successful cases, included (a) disseminated intravascular coagulation (DIC) syndrome (b) complex chromosomal abnormalities (c) leukocytosis over 100, 000/μl and (d) markedly elevated seum LDH level and thymidine kinase activitis at the time of initial admission.
The greater majority of these cases (10 out of 13) resulted in death within 90 days after the start of induction therapy.
The causes of death were predominantly hemorrhagic events associated with DIC syndrome, cerebral hemorrhage and severe infectious diseases such as sepsis and pneumonia.
Earlier death within 14 days after therapy was caused from hemorrhagic events and later one was severe infections.
In the G-CSF treated group, the febril term of over 38°C was shorter and the number of days taken for the neutrophil counts to be restored to the 1, 000/μl level was fewer than in the non G-CSF treated group.
Thus, it was suggested that G-CSF was expected to be one of the useful supporting agents to prevent infections in remission induction therapy for acute leukemia.
3.A One-Stage Operation for Incomplete AVSD, Mitral Regurgitation, Patent Foramen Ovale, Atrial Fibrillation, and Pectus Excavatum
Takao Miki ; Toru Takahashi ; Jun Mohara ; Masanori Koike ; Izumi Takeyoshi
Japanese Journal of Cardiovascular Surgery 2016;45(4):161-165
A 55-year-old man presented with exertional dyspnea. He was found to have an incomplete atrioventricular septal defect (AVSD), mitral regurgitation, a patent foramen ovale (PFO), atrial fibrillation, and pectus excavatum. A one-stage operation including thoracoplasty in addition to the intracardiac repair was preferred in order to obtain a good view of the operative field and control the postoperative hemodynamics. Therefore, we performed autologous pericardial patch closure of the AVSD, mitral valve plasty with closure of the mitral cleft, direct closure of the PFO, and a modified maze procedure, followed by sternal elevation (modified Ravitch procedure) during chest closure. Postoperatively, his respiratory status on a respirator improved slowly and he was extubated on the 17th postoperative day. Dysphagia developed because of the prolonged intubation, but improved with deglutition rehabilitation. The subsequent postoperative course was uneventful and he was discharged on the 59th postoperative day. We performed a modified Ravitch procedure, instead of sternal turnover, because the latter requires exfoliating a broad area, which could increase the total blood loss and the risk of infection, and make it difficult to maintain the blood flow of the plastron. We obtained a good view of the operative field and stable hemodynamics postoperatively with sternal elevation in pectus excavatum accompanied by heart disease.
4.A Case of Coronary Ostial Stenosis with Aortic Regurgitation Due to Syphilitic Aortitis.
Yasushi Sato ; Susumu Ishikawa ; Akio Ohtaki ; Kazuhiro Sakata ; Yoshimi Otani ; Toru Takahashi ; Ichiro Yoshida ; Yasuo Morishita
Japanese Journal of Cardiovascular Surgery 1995;24(3):175-177
A 50-year-old man was diagnosed as having aortic valve insufficiency, complete occlusion of the right coronary artery and 75% stenosis of the left main trunk due to syphilitic aortitis. Aortic valve replacement and coronary artery bypass grafting to three vessels were successfully performed. The selection of surgical procedures for the coronary lesion with syphilitic aortitis should be made carefully, since the progression of aortic root inflammation in the acute phase and the development of atherosclerotic changes are not preventable in the future. It is most important to select effective and safe surgical interventions, especially for patients with such a low cardiac function as our patient.
5.Evaluating a Palliative Medicine Education Program for Undergraduate Medical Students at a Regional Hospice
Manabu Tatokoro ; Kumiko Matsushita ; Keita Watanabe ; Eriko Yamanaka ; Toru Miyazaki ; Mihoko Takahashi
Palliative Care Research 2017;12(2):911-917
Background: There is increasing demand for clinical clerkships in palliative medicine, though conventional medical education has focused only on providing students with sufficient medical knowledge and skills. In Japan, there is no standard program for palliative medicine in undergraduate medical education. Our hospice, in cooperation with a clinical clerkship for palliative medicine launched by Tokyo Medical and Dental University, has developed its own comprehensive bedside learning curriculum. Aim: This study aimed to evaluate the efficacy of the program. Methods: The curriculum involves not only experience in hospice care, ward rounds, and interviews with terminally ill patients, it also provides each medical student with educational sessions moderated by certified hospice nurses and pharmacists. We conducted a self-administered five-point scale questionnaire (with a higher score indicating higher satisfaction) to assess students’ satisfaction and understanding of the program. We also conducted a questionnaire on basic palliative medicine knowledge before and after the program. Results: Twenty students took part in the program. Ratios of scores of 4 or 5 for satisfaction and understanding of the program were 100% and 95%, respectively. Mean rates of correct answers on the pre-program and post-program test were 51% and 85%, respectively; showing a marked increase and emphasizing the educational significance of our curriculum. Students evidently benefit from the experience of bedside learning, and 95% reported having recommended the program to their juniors. Conclusion: These outcomes suggest the program is effective toward developing a standard education program in palliative medicine.
6.A Case of Churg-Strauss Syndrome (Allergic Granulomatous Angiitis) with Severe Heart Failure Treated by Steroid Pulse Therapy.
Satoru TAKEDA ; Toshiaki TAKAHASHI ; Kaori OHMORI ; Kohei FUKAHORI ; Masayuki YOSHIDA ; Koki SAITO ; Etsuko FUSHIMI ; Nobuyo SEKIGUCHI ; Toru TAKAHASHI ; Keiji KIMURA ; Masato HAYASHI ; Masahiro SAITO
Journal of the Japanese Association of Rural Medicine 2002;51(2):127-133
A19-year-old man was admitted to the hospital because of severe congestive heart failure on 7 April 2000. In the previous year his case had been diagnosed as Churg-Strauss syndrome (allergic granulomatous angiitis, AGA) with bronchial asthma and mononeuritis multiplex. Echocardiography revealed the dilatation of the left ventricle (LVDd 74 mm) and impaired left ventricular systolic function (LVEF 20%). On the 21st hospital day, the irregularity of peripheral branches of left and right coronary arteries was detected by coronary arteriography. Right ventricular endomyocardial biopsy yielded little fibrosis and no infiltration of eosinophil. Although all the laboratory tests showed lower activity of AGA, steroid pulse therapy was tried and the use of steroids was tapered at intervals of two weeks. Left ventricular function was slowly improved (LVDd 60 mm, LVEF 36%). He was discharged on foot on the 71st hospital day.
7.Total Removal of a Contaminated Pacemaker under Cardiopulmonary Bypass in a Case of MRSA Septicemia.
Yutaka Hasegawa ; Susumu Ishikawa ; Akio Otaki ; Yasushi Sato ; Kazuhiro Sakata ; Toru Takahashi ; Motoi Kano ; Tetsuya Koyano ; Masao Suzuki ; Yasuo Morishita
Japanese Journal of Cardiovascular Surgery 1995;24(5):347-350
A 78-year-old man underwent successful removal of a contaminated pacemaker in a case of methicillin-resistant Staphylococcus aureus (MRSA) septicemia. Septicemia was due to a subcutaneous abscess at the site of old cut electrodes. Following debridement of the infected pacemaker pocket, residual leads and the pacemaker system were removed under cardiopulmonary bypass. Bacterial examination of arterial blood and vegetation attached to the leads showed septicemia caused by MRSA. After the operation, antibiotic therapy with vancomycin, arbekacin and minocycline was performed for several weeks. His postoperative course was uneventful without the recurrence of infection. In cases of pacemaker contamination, with septicemia, total removal of the pacemaker system and adequate antibiotic therapy are necessary.
8.Preoperative Pulmonary Arterial Pressure and Surgical Treatment of Secundum Atrial Septal Defect in Patients over 50 Years of Age.
Yutaka Hasegawa ; Susumu Ishikawa ; Akio Ohtaki ; Toru Takahashi ; Hideaki Ichikawa ; Yasushi Sato ; Tetsuya Koyano ; Masao Suzuki ; Masaaki Takao ; Yasuo Morishita
Japanese Journal of Cardiovascular Surgery 1996;25(5):285-289
The preoperative pulmonary arterial pressure of 38 patients aged over 50 undergoing surgical closure of a secundum atrial septal defect was studied. They were divided into three groups according to systolic pulmonary arterial pressure (PAP): Group A (PAP<30mmHg, n=14), Group B (30≤PAP<50mmHg, n=16), and Group C (PAP≥50mmHg, n=8). The mean age of group C patients was older than that of group A patients. With higher PAP, the Pp/Ps, Rp/Rs and cardiothoracic ratios increased, atrial fibrillation and heart failure (NYHA≥2) were more frequent, and PaO2 levels declined. There were no differences in left to right shunt ratio and Qp/Qs among the three groups. The PAP and Rp/Rs were under 70mmHg and 0.30, respectively in all patients. High pulmonary blood flow seems to be the cause of pulmonary hypertension in most elderly patients because PAP and Rp/Rs decreased after surgery in all groups. Findings of cardiomegaly and heart failure also improved after surgery. Surgical intervention is recommended even in elderly patients with a ASD.
9.A Case of Aortic Stenosis Secondary to Bicuspid Aortic Valve Associated with Klippel-Feil Syndrome Treated by Aortic Valve Replacement.
Shigeru Ohki ; Susumu Ishikawa ; Akio Ohtaki ; Toru Takahashi ; Yasushi Satoh ; Tetsuya Koyano ; Toshiharu Yamagishi ; Takashi Ogino ; Satoshi Ohki ; Yasuo Morishita
Japanese Journal of Cardiovascular Surgery 1997;26(3):200-203
A 52-year-old male was diagnosed as having aortic stenosis secondary to a bicuspid aortic valve associated with Klippel-Feil syndrome. Aortic valve replacement was successfully performed without any problems in the surgical or anesthesiological management. Only five such cases including ours, who underwent cardiac surgery have been reported. It is possible to perform cardiac surgery for patients with Klippel-Feil syndrome of their cardiac function can be well preserved.
10.Long-term Results of Surgical Treatment of Abdominal Aortic Aneurysm.
Satoshi Ohki ; Susumu Ishikawa ; Takashi Ogino ; Akio Ohtaki ; Toru Takahashi ; Yutaka Hasegawa ; Toshiharu Yamagishi ; Syuji Sakata ; Jun Murakami ; Yasuo Morishita
Japanese Journal of Cardiovascular Surgery 1997;26(5):298-301
A follow-up study of 98 patients undergoing abdominal aortic aneurysm (AAA) repair for 44 months, ranging 2 to 113 months, revealed no difference in 5-year actuarial survival between patients aged 75 or older and patients aged less than 75. The 5-year actuarial survival of ruptured and nonruptured AAA cases was 469% and 71.2%, respectively (p<0.01). Late deaths after the repair of ruptured AAA were all due to atherosclerotic diseases. During a follow-up period after AAA repair, 9 patients were diagnosed as having malignant diseases with a fatal outcome in 6. Careful attention to atherosclerotic and malignant diseases is indispensable for follow-up management after AAA repair.