1.A Case of Mitral Valve Plasty without Autologous Pericardium for Active Infective Endocarditis
Atsushi Shimizu ; Hiroyuki Nakajima ; Hiroaki Osada ; Atsushi Nagasawa ; Masahisa Kyogoku
Japanese Journal of Cardiovascular Surgery 2011;40(2):72-76
In recent treatment of mitral regurgitation due to active infective endocarditis, significant attempts have been made to repair as much of the mitral valve as possible. In cases where the leaflet is damaged extensively because of infection, valve repair generally becomes difficult unless the defect is reinforced by glutaric aldehyde-preserved autologous pericardium. We report a case in which mitral valve plasty for mitral regurgitation was performed under these circumstances. A 27-year-old man was admitted to our hospital because of headache and persistent fever. Transthoracic echocardiography revealed a 13-mm friable vegetation attached to the anterior leaflet of the mitral valve with severe mitral regurgitation. Urgent surgery was performed based on a diagnosis of active infective endocartitis. After cardiopulmonary bypass was performed and the aorta was cross-clamped, a left atriotomy was carried out on the interatrial groove. Much vegetation was attached to the damaged mitral leaflet from A3 to P3, and prolapse of the commissural leaflet was observed. The vegetation and damaged leaflet were then removed. Removal of the superficial vegetations enabled preservation of more than half of the A3. The valve was repaired by the resection-suture technique without using the autologous pericardium, as glutaric aldehyde solution was not available. Mitral annuloplasty using a 28-mm physio ring was performed thereafter. The postoperative course was uneventful and without any residual regurgitation. Nine months after surgery, no recurrence of infection or mitral regurgitation was not observed.
2.Gallbladder Infarction Complication after Total Arch Replacement
Atsushi Shimizu ; Hiroyuki Nakajima ; Hiroaki Osada ; Atsushi Nagasawa ; Masahisa Kyogoku
Japanese Journal of Cardiovascular Surgery 2011;40(2):77-80
A 73-year-old man was referred to our hospital for treatment of a sacral aneurysm of the distal aortic arch with a maximum dimension of 66 mm. He underwent total arch replacement (TAR) with cardiopulmonary bypass (CPB), moderate hypothermia, circulatory arrest (CA) of the lower body and antegrade selective cerebral perfusion (SCP) via a median sternotomy. Through the aneurysm, the descending aorta was divided and distal anastomosis was performed using the stepwise technique. After the inserted tube graft was extracted, a four-branched arch graft was anastomosed. The arch vessels and the proximal aorta were then anastomosed to the four-branched graft. The operation time was 515 min, CPB time was 305 min, aorta cross clamp (ACC) time was 213 min, SCP time was 143 min, and CA of the lower body was 97 min. On postoperative day (POD) 5, right-upper abdominal pain suddenly developed, with low grade fever. Acute cholecystitis was suspected and antibiotic therapy was started. On POD 6, his abdominal pain shifted to the lower-right region. His blood examination results were unchanged. Acute peritonitis was suggested by abdominal-enhanced computed tomography (CT), and emergency open cholecystectomy was then performed. There was no evidence of gall stones, and a bacterial culture of the ascites was negative. The pathological diagnosis was thromboendarteritis of the gallbladder artery, accompanied with thrombophlebitis and thrombosis, causing massive infarction at the neck of the gallbladder wall. His postoperative course was uneventful and he discharged in an ambulatory state on POD 16. In TAR, the risk of gastrointestinal ischemia is considerable because of prolonged circulatory arrest of the lower body and debris embolism. It is necessary to recognize possible gallbladder infarction, although it is rare, as a differential diagnosis of acute abdomen after TAR.
3.Establishment of a new function for pharmacies : sharing of patient-monitored warfarin PT-INR information with clinics
Keiko Yamamura ; Hiroyuki Kurata ; Katsuro Shigeno ; Takashi Osada ; Yuzo Adachi ; Yoshiya Hasegawa
An Official Journal of the Japan Primary Care Association 2012;35(1):45-48
Objective : To provide efficient medical care to patients taking warfarin by developing a system for sharing prothrombin time-international normalized ratio (PT-INR) monitoring data between clinic and pharmacy ; and to verify the functionality of this system.
Methods : Before a clinic appointment, patients visited a pharmacy to self-monitor PT-INR levels with the rapid measuring device Coagucheck. Pharmacists noted the following on a form shared between the clinic and the pharmacy : 1) compliance, 2) side effects, 3) diet, and 4) PT-INR. On the basis of this information, they noted their opinions on the appropriate warfarin dose. Each patient submitted the form to the clinic doctor, who then prescribed warfarin on the basis of the information recorded. After the consultation, the patient took this prescription to the pharmacy to obtain the required medication, and received from the pharmacist the dosage information based on the doctor's instructions. Thus, the sequence of the patient's visits was pharmacy-clinic-pharmacy.
Results : From one pharmacist's report, it was apparent that one patient whose PT-INR level was outside the target range was occasionally skipping a warfarin dose because of a misunderstanding about the treatment. The pharmacist recorded the patient's information on the form to inform the doctor. After consultation with the doctor, the pharmacist gave a detailed explanation on the purpose of taking warfarin. As a result, patient compliance improved and the PT-INR reached the target level after one month.
Discussion : Development of this system revealed that patients can receive appropriate warfarin treatment when information on PT-INR becomes available during clinical consultation and compliance is achieved. The system for sharing the patient's self-monitored PT-INR data between clinic and pharmacy is considered beneficial for the patient.
4.Genetic polymorphisms ofCYP2A6 andCYP2E1 with tobacco smoking is not associated with risk of urothelial cancer.
Hiromasa TSUKINO ; Yoshiki KURODA ; Hiroyuki NAKAO ; Hirohisa IMAI ; Yukio OSADA ; Hisato INATOMI ; Kyoko KITAGAWA ; Toshihiro KAWAMOTO ; Takahiko KATOH
Environmental Health and Preventive Medicine 2002;7(3):129-131
OBJECTIVESTo elucidate the association between genetic polymorphisms ofCYP2a6 andCYP2E1 and urothelial cancer susceptibility.
METHODSA total of 137 Japanese patients with urothelial cancer and 217 Japanese healthy controls, frequency-matched for age and gender, were selected. The polymorphisms ofCYP2A6 andCYP2E1 were analyzed by PCR-RFLP, and cigarette smoking histories were obtained through interviews
RESULTSThe frequency ofCYP2A6 homozygote deletion genotype was 2.9% in the patients, compared with 3.2% in the controls (OR=0.84, 95% CI 0.24-2.96). The frequencies ofCYP2E1 C1/c2 andC2/c2 were 27.7% and 4.4% in the patients, compared with 35.5% and 6.0% in the controls (OR=0.68, 95% CI 0.42-1.09, OR=0.67, 95% CI 0.24-1.84, respectively). No statistically significant differences were observed when theCYP2A6 homozygote deletion genotype and theCYP2E1 genotypes were examined relative to smoking status.
CONCLUSIONSOur data indicate that neither a relationship between genetically impaired nitrosamine metabolism and tobacco-smoking consumption, nor urothelial cancer risk related to theCYP2A6 deletion genotype andCYP2E1 Rsa I genotype was found in Japanese population.
5.Penidioxolanes A and B, 1,3-Dioxolane Containing Azaphilone Derivatives from Marine-derived Penicillium sp. KCB12C078.
Seung Min KIM ; Sangkeun SON ; Jong Won KIM ; Eun Soo JEON ; Sung Kyun KO ; In Ja RYOO ; Kee Sun SHIN ; Hiroshi HIROTA ; Shunji TAKAHASHI ; Hiroyuki OSADA ; Jae Hyuk JANG ; Jong Seog AHN
Natural Product Sciences 2015;21(4):231-236
Two new azaphilone derivatives containing 1,3-dioxolane moiety, penidioxolanes A (1) and B (2), were isolated from marine-derived fungus Penicillium sp. KCB12C078, together with four known compounds (3-6) by chemical investigation. Compounds 1 - 6 were isolated by combination of silica gel, ODS column chromatography and preparative HPLC. Their structures were determined by analysis of spectroscopic data including 1D-, 2D-NMR, and MS techniques. The isolates were evaluated against cancer cell growth inhibition effects and antimicrobial activity.
Chromatography
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Chromatography, High Pressure Liquid
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Fungi
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Penicillium*
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Silica Gel