1.Determinants of carotid atherosclerosis in the general Mongolinan population using ultrasonography
Uurtuya Shuumarjav ; Kazuhiko Kotani ; Hideki Yoshioka ; Dagdanbazar Nyamdorj ; Toshiyuki Yamada ; Nobuyuki Taniguchi
Innovation 2013;7(1):44-47
Atherosclerotic risk factors contribute to carotid atherosclerosis. Carotid intima-media thickness (IMT), as assessed using a non-invasive high-resolution ultrasound, can predict cardiovascular disease (CVD). Whereas the control of CVD is crucial for the Mongolian people, the studies on carotid atherosclerosis are lacking. The present population-based survey was a cross-sectional investigation of the determinants of carotid IMT in the general Mongolian population.
A total of 344 Mongolian volunteers, aged 18-69 years, without CVD and on no medication, were recruited from a health screening setting. The current smoking habits, body mass index, mean blood pressure (MBP), blood total cholesterol (TC), glucose, insulin and carotid IMT (maximum level) were measured.
Mongolian males had a significantly higher prevalence of current smoking and a higher level of IMT than females (average=0.58 mm in males vs 0.46 in females). Both a single and multiple regression analysis adjusted for all the regression analysis adjusted for all the measures revealed that IMT was significantly and positively correlated with age, male sex, MBP, TC and glucose among all of the participants. IMT was significantly and positively correlated with age, followed by MBP, TC and glucose among males, while among females, IMT was significantly and positively correlated with age, followed by MBP and TC.
Age was the strongest determinant of carotid atherosclerosis, and the increases in blood pressure and cholesterol levels were also important measures in both sexes as well as glucose levels in males in particularly, thus suggesting a preventive strategy necessary for CVD in the general Mongolian population.
2.Effects of long term physical exercise therapy in patients with diabetes mellitus.
KUNIO OKADA ; SATORU FUJII ; SHIRO TANAKA ; JUNKO YAMADA ; JUNICHI SEKI ; MASAHISA WADA ; MASAMICHI WAKITA ; TOSHIYUKI ISEKI
Japanese Journal of Physical Fitness and Sports Medicine 1984;33(2):69-77
Exercise therapy as well as diet therapy, is fundamental in the treatment of diabetes mellitus, however, its methods and effects of long term physical exercise therapy has not yet been clarified.
The present study has been designed to evaluate the effects of physical exercise therapy in diabetic patients with fasting hyperglycemia. Ten non-insulin dependent diabetic patients participated in a 6-month physical exercise program consisting of 30 min, of jogging performed 3 times per week (Exercise group) . The exercise intensity represented 40% of estimated Vo2max.
The following results were obtained:
1. More significant improvement of glucose tolerance and plasma insulin response to glucose load was observed in exercise group as compared with the patients treated with mild caloric restriction alone (Diet group, N=15) .
2. The significant increase in plasma HDL-cholesterol and HDL-cholesterol/total cholesterol ratio was observed only in exercise group.
3. The reduction of body weight in exercise group was significantly greater than that in diet group.
4. The physical exercise also resulted in an improvement of cardiovascular adaptaion to exercise.
5. Improvement of symptoms in daily life activity was also found after physical exercise therapy. However, some medical troubles such as hypoglycemia, muscle pain and arthralgia were found during observation period.
In conclusion, physical exercise therapy is useful as an adjunct to diet to improve metabolic control in patients with diabetes mellitus. And for effective exercise therapy, exercise program must be individualized, and motivation is stimulated by team including physician, trainer, nurse and dietitian.
3.A Rare Complication after Tricuspid Annuloplasty
Masatoshi Sunada ; Hisao Suda ; Takuya Nakayama ; Toshiyuki Yamada ; Yosuke Miyata ; Tatsuhito Ogawa
Japanese Journal of Cardiovascular Surgery 2015;44(3):170-172
We report a rare case of severe aortic regurgitation after mitral valve replacement (MVR) and tricuspid annuloplasty (TAP). An 83-year-old woman underwent MVR and TAP for mitral regurgitation and secondary tricuspid regurgitation. The early postoperative course was not eventful until 6 days after surgery. However, 7 days after surgery, she suffered from acute heart failure and transthoracic echocardiography showed severe aortic regurgitation. We performed a second operation 13 days after the first surgery. Intraoperatively, we found the annulus suture of the TAP just under the NCC-RCC commissure of the aortic valve. We speculated that the suture pulled the aortic valve annulus, resulting in severe aortic regurgitation. We removed the suture and replaced the aortic valve with bioprosthetic artificial valve. Postoperative recovery was uneventful, and she was discharged 22 days after the second surgical procedure.
5. Determinants of carotid atherosclerosis in the general Mongolinan population using ultrasonography
Uurtuya SHUUMARJAV ; Kazuhiko KOTANI ; Hideki YOSHIOKA ; Dagdanbazar NYAMDORJ ; Toshiyuki YAMADA ; Nobuyuki TANIGUCHI
Innovation 2013;7(1):44-47
Atherosclerotic risk factors contribute to carotid atherosclerosis. Carotid intima-media thickness (IMT), as assessed using a non-invasive high-resolution ultrasound, can predict cardiovascular disease (CVD). Whereas the control of CVD is crucial for the Mongolian people, the studies on carotid atherosclerosis are lacking. The present population-based survey was a cross-sectional investigation of the determinants of carotid IMT in the general Mongolian population.A total of 344 Mongolian volunteers, aged 18-69 years, without CVD and on no medication, were recruited from a health screening setting. The current smoking habits, body mass index, mean blood pressure (MBP), blood total cholesterol (TC), glucose, insulin and carotid IMT (maximum level) were measured.Mongolian males had a significantly higher prevalence of current smoking and a higher level of IMT than females (average=0.58 mm in males vs 0.46 in females). Both a single and multiple regression analysis adjusted for all the regression analysis adjusted for all the measures revealed that IMT was significantly and positively correlated with age, male sex, MBP, TC and glucose among all of the participants. IMT was significantly and positively correlated with age, followed by MBP, TC and glucose among males, while among females, IMT was significantly and positively correlated with age, followed by MBP and TC.Age was the strongest determinant of carotid atherosclerosis, and the increases in blood pressure and cholesterol levels were also important measures in both sexes as well as glucose levels in males in particularly, thus suggesting a preventive strategy necessary for CVD in the general Mongolian population.
6.Kampo Treatment through Lactation for Skin Deseases of Infants.
Kenji WATANABE ; Sung-loon Kim ; Kunihiko SUZUKI ; Akihiko MURANUSHI ; Jong-Chol CYONG ; Haruki YAMADA ; Toshiyuki OKA ; Toshihiko HANAWA
Kampo Medicine 1999;49(5):851-858
When the Kampo treatment is considered for skin diseases of infants, difficulties arise because of the medicine's smell and taste. One of the ways is to give Kampo medicine to their mothers with the expectation that Kampo medicine will be transfered to the infant through lactation. The results of this treatment of ten infants are reported here. One suffered from seborrheic eczema and nine from atopic dermatitis. Nine out of ten cases were cured by the treatment of Kampo medicine in periods ranging from one month to one year and four months. The other case had to continue Kampo medicine by himself for one year and seven months after discontinuance of breast feeding. This therapeutic way is also good for the mothers with atopic dermatitis. In cases of atopic dermatitis in both mothers and children, children improved in a rather short period compared to their mothers. As a result, for the treatment of the skin diseases of infants, administration of Kampo medicine to their mother should be considered.
7.A Left Ventricular Pseudoaneurysm Related to Infective Endocarditis in the Mitral Valve
Yusuke Takei ; Ikuko Shibasaki ; Riha Shimizu ; Go Tsuchiya ; Takayuki Hori ; Toshiyuki Kuwata ; Yuho Inoue ; Yasuyuki Yamada ; Hirotsugu Fukuda
Japanese Journal of Cardiovascular Surgery 2014;43(1):15-18
A 78-year-old woman who had undergone an axillobifemoral artery bypass with a prosthetic graft for Leriche syndrome presented 1 month later with cough and fever. A clinical examination revealed obvious redness in the right groin. Routine laboratory tests uncovered inflammation and methicillin-sensitive-Staphylococcus aureus was cultured from blood samples. Mitral valve vegetations were identified by echocardiography, and after a diagnosis of infective endocarditis, specific intravenous antibiotics were immediately administered. One month later, CT revealed a large pseudoaneurysm of the posterior left ventricular wall that had not been present at the time of admission. Transesophageal echocardiography and magnetic resonance imaging showed an aneurysmal cavity arising from the wall just below the posterior mitral valve leaflet. The patient agreed to undergo cardiac surgery due to the high likelihood that the pseudoaneurysm would rupture. The mitral annulus and leaflet were normal at surgery. We resected the posterior leaflet, closed the cavity using a Xenomedica patch, and reconstructed the leaflet. We did not remove the pseudoaneurysm using an extracardiac approach because the likelihood of damaging the coronary arteries and the coronary sinus was quite high. The postoperative course was uneventful. At follow-up 1 year later, the patient was afebrile and both CT and echocardiography showed that the cavity was completely filled by the thrombus. The imaging findings were useful in determining the surgical approach.
8.Cardiovascular Surgery in Patients 85 or Older
Shigeyoshi Gon ; Yasuyuki Yamada ; Ikuko Shibasaki ; Toshiyuki Kuwata ; Takayuki Hori ; Go Tsuchiya ; Masahiro Seki ; Yuriko Kiriya ; Takashi Kato ; Hirotsugu Fukuda
Japanese Journal of Cardiovascular Surgery 2014;43(4):170-176
Background : This study was performed to evaluate surgical outcomes after cardiovascular surgery (including urgent surgery) in patients 85 or older. Methods : A retrospective analysis was performed on 39 patients (mean age, 86.3 years ; age range, 85-90 years) who underwent total arch replacement (n=4), ascending aorta replacement (n=4), descending aorta replacement (n=1), aortic valve replacement (AVR ; n=13), mitral valve replacement or valvuloplasty (n=3), coronary artery bypass grafting (CABG ; n=9), CABG+AVR (n=4), tumor resection (n=1) between June 2008 and December 2012 at Dokkyo Medical University Hospital. Results : Six hospital deaths occurred. One patient died due to bleeding from a ruptured descending thoracic aortic aneurysm, and another patient died due to gastrointestinal perforation from non-occlusive mesenteric ischemia (NOMI) after urgent AVR. The other deaths were related to various complications, including lung cancer, cholecystitis, myocardial infarction, and Takotsubo cardiomyopathy, during the postoperative period. Overall 30-day mortality was 2.6%, hospital mortality was 12.8%, duration of hospital stay after surgery was 41.3 days, duration of intensive care unit (ICU) stay was 3.8 days and ventilator time was 49.1 h. Twenty patients underwent elective surgery, and 19 patients underwent urgent surgery. The two groups had similar preoperative characteristics, except for the number of patients with aortic disease. No significant difference was evident in hospital mortality (26.3% vs. 5%, p=0.065) or 30-day mortality (0% vs. 5.3%, p=0.3) when comparing the two groups. However, the duration of hospital stay (58.9 days vs. 27.5 days, p=0.049), ICU stay (6.74 days vs. 1.05 days, p=0.002) and ventilator time (89.9 h vs. 8.2 h, p=0.006) was significantly longer in the urgent surgery group than in the elective surgery group. Fourteen patients (70%) in the elective surgery group and four patients (21.1%) in the urgent surgery group were able to be discharged from the hospital to their homes within 30 days after surgery. These data demonstrated that cardiovascular surgery in patients 85 years of age or older was associated with satisfactory outcomes, and outcomes associated with elective surgery were even better than those associated with urgent surgery. Conclusions : Therefore, advanced age does not represent a contraindication of conventional cardiovascular surgery. Rather, the decision for surgery should take the patient's preoperative condition, the severity of concurrent medical disease, the wishes of the patient, and the predicted functional outcomes into account.
9.Association between urinary 8-OHdG and pulse wave velocity in hypertensive patients with type 2 diabetes mellitus.
Kazuhiko KOTANI ; Toshiyuki YAMADA
Singapore medical journal 2014;55(4):202-208
INTRODUCTIONOxidative stress, assessed using 8-hydroxy-2'-deoxyguanosine (8-OHdG), can be associated with arterial stiffness in patients with type 2 diabetes mellitus (T2DM) and/or hypertension (HT). We investigated the correlation between urinary 8-OHdG and pulse wave velocity (PWV) in hypertensive and non-hypertensive T2DM patients with fair glycaemic control to determine the clinical significance of HT as a comorbidity in the diabetic state.
METHODSClinical data, including traditional cardiovascular risk factors, diabetic complications, prescribed agents, urinary 8-OHdG level and brachial-ankle PWV, was collected from T2DM patients with and without HT.
RESULTSThere were 76 patients (45 men, 31 women; mean age 61 years; mean haemoglobin A1c level 6.5%) in the study cohort. T2DM patients with HT had significantly higher mean PWV than patients without HT (1,597 cm/s vs 1,442 cm/s; p < 0.05). Patients with HT showed no significant difference in 8-OHdG levels relative to those without HT (median 7.9 ng/mg creatinine vs 8.8 ng/mg creatinine; p > 0.05). Simple linear correlation and stepwise multiple linear regression analyses revealed that 8-OHdG levels correlated independently, significantly and positively with PWV among T2DM patients with HT (r = 0.33, p < 0.05; β= 0.23, p < 0.05). No significant correlation was observed between 8-OHdG levels and PWV among T2DM patients without HT.
CONCLUSIONIn the hypertensive state, oxidative stress can be responsible for the development of arterial stiffness, even in patients with fairly well controlled T2DM. Oxidative stress management may be necessary for the prevention of cardiovascular disease in this population.
Adult ; Aged ; Aged, 80 and over ; Ankle Brachial Index ; Cohort Studies ; Deoxyguanosine ; analogs & derivatives ; urine ; Diabetes Complications ; urine ; Diabetes Mellitus, Type 2 ; urine ; Female ; Glycated Hemoglobin A ; metabolism ; Humans ; Hypertension ; complications ; urine ; Male ; Middle Aged ; Oxidative Stress ; Pulse Wave Analysis ; Vascular Stiffness
10.A Questionnaire Survey on Extracorporeal Membrane Oxygenation Targeting Under-Forty Cardiovascular Surgeons No.8
Tatsuki FUJIWARA ; Akinori HIRANO ; Chiharu TANAKA ; Hiroo KINAMI ; Hiroko KOGO ; Kenichiro TAKAHASHI ; Keita HAYASHI ; Toshiki FUJIYOSHI ; Keita MARUNO ; Toshiyuki YAMADA ; Kunihiko YOSHINO
Japanese Journal of Cardiovascular Surgery 2018;47(6):6-U1-6-U7
Basic procedures that cardiovascular surgeons routinely perform are rarely discussed, despite the great variability among facilities. We conducted a questionnaire survey on Extracorporeal Membrane Oxygenation (ECMO) targeting under-forty cardiovascular surgeons and obtained responses from 53 surgeons. We report the questionnaire results.