1.Acquired Left Ventricle to Right Atrial Communication Following Infective Endocarditis of the Native Aortic Valve Diagnosed Using Cardiac Computed Tomography
Mizuho IKUCHI ; Kentaro HONDA ; Kota AGEMATSU ; Hideki KUNIMOTO ; Ryo NAKAMURA ; Koji TAJIMA ; Masahiro KANEKO ; Yoshiharu NISHIMURA
Japanese Journal of Cardiovascular Surgery 2023;52(1):14-17
		                        		
		                        			
		                        			Left ventricle to right atrial communication is a rare cardiac pathology, and it is either congenital or acquired. Recently, case reports of acquired left ventricle to right atrial communication have been increasing because of the increased numbers of cardiovascular procedures and improved cardiac diagnostic techniques. We report a case of acquired left ventricle to right atrial communication in a patient with native aortic valve infective endocarditis. A 52-year-old man with worsening dyspnea on exertion and lower leg edema was admitted to a hospital. Blood examination revealed elevated inflammatory marker levels, and transthoracic echocardiography (TTE) showed an aortic valve vegetation. The patient was subsequently transferred to our hospital for infective endocarditis with congestive heart failure. Medical treatment with antibiotics and diuretics was initiated. Cardiac computed tomography (CT) demonstrated left ventricle to right atrial communication. An urgent operation was performed wherein the defect was closed with autologous pericardial patches from both the right atrium and left ventricle. Aortic valve replacement was performed with a mechanical valve. The postoperative course was uneventful, and TTE showed no residual shunt. In our case, cardiac CT was useful for accurately diagnosing left ventricle to right atrial communication.
		                        		
		                        		
		                        		
		                        	
2.A Case of Aortic Subannular Left Ventricular Aneurysm Appears to Be an Acute Aortic Root Dissection
Yasuka NAKANISHI ; Mitsuru YUZAKI ; Kentaro HONDA ; Masahiro KANEKO ; Takahiro FUJIMOTO ; Kota AGEMATSU ; Mitsugi NAGASHIMA ; Yoshiharu NISHIMURA
Japanese Journal of Cardiovascular Surgery 2020;49(5):271-274
		                        		
		                        			
		                        			A 67-year-old man with dyspnea at rest was diagnosed with acute heart failure and admitted to our hospital. Echocardiogram showed severe AR, and CT implied an ascending aortic aneurysm and abnormal space in the aortic root. The patient underwent emergent surgery for suspected acute aortic dissection. Intraoperative findings showed the dehiscence of commissure of the aortic valve, and more, the abnormal space in the aortic root was not due to acute aortic dissection but an aortic subannular left ventricular aneurysm. The aneurysm was sutured and closed, and after that, aortic valve replacement and ascending aortic replacement were performed. Although subannular left ventricular aneurysm is a rare disease, it is important to carry out the preoperative evaluation considering the existence of such diseases.
		                        		
		                        		
		                        		
		                        	
3.A Case of Brugada Syndrome Treated With Percutaneous Epicardial Catheter Ablation
Masahiro OGAWA ; Yoshiyuki HYOUDOU ; Masayuki OKIJIMA ; Hirotaka INOUE ; Kouji KONDOU ; Yuki FUJII ; Atsuya SAKAIDE ; Keisuke TSUJIKAWA ; Kazuyoshi NISHIYAMA ; Ryouta TANI ; Izumi OHTA ; Mizuki ENDOU ; Kimitoshi SANO ; Kenji NAKAMAE ; Shinji KANEKO ; Masaya FUJITA ; Yousuke TATAMI ; Osamu KAWAGUCHI
Journal of the Japanese Association of Rural Medicine 2020;69(4):385-
		                        		
		                        			
		                        			This case report describes our first experience performing percutaneous epicardial catheter ablation for Burugada syndrome in our hospital. We describe the good results achieved in this case. The patient was a man in his 30s with no remarkable medical history. However, his family history was notable for the sudden death of his grandfather at age 37 years and his father at age 27 years. While asleep, the patient experienced convulsions and lost consciousness. During emergency transportation, defibrillation was performed 7 times by the ambulance crew. When the patient arrived at our hospital, sinus rhythm was observed on ECG. During resuscitation, Burugada syndrome was diagnosed based on ECG findings. On hospital day 6, an internal cardioverter defibrillator was implanted. After discharge, the defibrillator operated 10 times, so we opted for ablation treatment. Fractionated potential of over 150 ms was confirmed in the right ventricular outflow tract. A low voltage zone of <1 mV could be mapped, and the same site was cauterized a total of 46 times. As a result, ST segment amplitude decreased significantly in lead V1 on ECG. Percutaneous epicardial catheter ablation performed with reference to Nademanee’s report achieved good results in this case of Burugada syndrome.
		                        		
		                        		
		                        		
		                        	
4.Acute Type A Aortic Dissection with Left Main Coronary Malperfusion
Takeo NAKAI ; Kentaro HONDA ; Mitsuru YUZAKI ; Masahiro KANEKO ; Hideki KUNIMOTO ; Mitsugi NAGASHIMA ; Yoshiharu NISHIMURA
Japanese Journal of Cardiovascular Surgery 2019;48(5):356-360
		                        		
		                        			
		                        			A 77-year-old woman was admitted to our hospital with a decreased level of consciousness and left hemiplegia. Contrast-enhanced CT showed acute type A aortic dissection and right common carotid artery occlusion. Electrocardiogram findings showed ST segment elevation in the anterolateral wall. The results suggested that the aortic dissection had extended to the left main trunk and caused acute myocardial infarction. Percutaneous coronary intervention (PCI) was performed preoperatively to improve myocardial ischemia reperfusion. After a successful PCI, the patient underwent ascending aorta replacement immediately. In cases of acute aortic dissection involving the left main artery, preoperative PCI prevents extensive myocardial damage and serves as a bridge to surgery.
		                        		
		                        		
		                        		
		                        	
5.A Survey on the Current Status of Supporting Home Medication Use by Caregivers and of the Cooperation with Pharmacists
Narumi SUGIHARA ; Miori IWAI ; Miwako KITTAKA ; Makoto SEO ; Masahiro OKADA ; Miyako KANEKO ; Itsuko YOKOTA
Japanese Journal of Social Pharmacy 2018;37(2):147-155
		                        		
		                        			
		                        			The questionnaire was distributed to caregivers regarding their management for home medication therapy. The purpose of this questionnaire was to clarify the role of community pharmacists in city “Z”, Hiroshima in supporting this activity. The results were compared among seven administrative zones. The percentage of caregivers who had routinely administered medications to dependent patients was 81%. Of these, the percentage of caregivers who had encountered difficulty in medication administration to dependent patients was 66%. Only 13% of these caregivers had sought assistance from pharmacists in dealing with issues they faced in the administration of medications. The percentage of caregivers who had easy access to pharmacists was 44%. The percentage of caregivers who received pharmacist-initiated information about patients was 23%. Among the 7 administrative zones in city “Z”, the 2 zones (H-zones) with the highest percentage of elderly citizens, 38.7%, were compared with the other 2 zones (L-zones) with the lowest percentage of elderly citizens, 25.7%, regarding medication management by caregivers. It was observed that the frequency of missing side effects or crushing medicines by caregivers was higher in H-zones as compared to L-zones. The results of this research suggest that close cooperation between pharmacists and caregivers improves the quality of medication therapy management. In an aging society, pharmacist intervention could be very beneficial to providing support and information that would improve the quality of patients’ medication therapy.
		                        		
		                        		
		                        		
		                        	
6.A Survey on the Current Status of Supporting Home Medication Use by Caregivers and of the Cooperation with Pharmacists
Narumi SUGIHARA ; Miori IWAI ; Miwako KITTAKA ; Makoto SEO ; Masahiro OKADA ; Miyako KANEKO ; Itsuko YOKOTA
Japanese Journal of Social Pharmacy 2018;37(2):147-155
		                        		
		                        			
		                        			The questionnaire was distributed to caregivers regarding their management for home medication therapy. The purpose of this questionnaire was to clarify the role of community pharmacists in city “Z”, Hiroshima in supporting this activity. The results were compared among seven administrative zones. The percentage of caregivers who had routinely administered medications to dependent patients was 81%. Of these, the percentage of caregivers who had encountered difficulty in medication administration to dependent patients was 66%. Only 13% of these caregivers had sought assistance from pharmacists in dealing with issues they faced in the administration of medications. The percentage of caregivers who had easy access to pharmacists was 44%. The percentage of caregivers who received pharmacist-initiated information about patients was 23%. Among the 7 administrative zones in city “Z”, the 2 zones (H-zones) with the highest percentage of elderly citizens, 38.7%, were compared with the other 2 zones (L-zones) with the lowest percentage of elderly citizens, 25.7%, regarding medication management by caregivers. It was observed that the frequency of missing side effects or crushing medicines by caregivers was higher in H-zones as compared to L-zones. The results of this research suggest that close cooperation between pharmacists and caregivers improves the quality of medication therapy management. In an aging society, pharmacist intervention could be very beneficial to providing support and information that would improve the quality of patients’ medication therapy.
		                        		
		                        		
		                        		
		                        	
7.Ifenprodil for trigeminal neuralgia with resistance to carbamazepine
Masahiro Fujiwara ; Mutsushi Kaneko ; Miyuki Mizushima
Palliative Care Research 2015;10(1):501-504
		                        		
		                        			
		                        			Ifenprodil, NMDA receptor antagonist, was very effective in the treatment of 3 patients with severe trigeminal neuralgia. Patient 1:A 70-year-old female had been treated for macroglobulinemia in our hospital. She had been suffered from severe trigeminal neuralgia for more than ten years. Carbamazepine given in another hospital was ineffective. We gave ifenprodil to her and it reduced her pain within 4 weeks. However, her pain relapsed after 1.5 years, so we gave pregabalin instead of ifenprodil to her. Patient 2:A 89-year-old male had been treated for myelodysplastic syndrome in our hospital. He also had been treated for trigeminal neuralgia in another hospital. Carbamazepine was ineffective and nerve block relieved his pain temporarily. We gave ifenprodil to him and it reduced his pain within 2 months. Patient 3:A 62-year-old female was referred to our hospital for the treatment of trigeminal neuralgia. She had been suffered from severe pain for about 10 years. She had taken carbamazepine with no effect. We gave ifenprodil to her and it reduced her pain within 4 weeks. Ketamin, non-selective NMDA receptor antagonist, is known to be effective in neuropathic pain, but it has various side effects. Ifenprodil, specific NMDA receptor subunit NR2B antagonist, may show better separation between efficacy and side effects.
		                        		
		                        		
		                        		
		                        	
8.A Case of Aortic Regurgitation Associated with Osteogenesis Imperfecta Successfully Treated by Aortic Valve Replacement
Norimasa Koike ; Tatsuo Kaneko ; Masahiko Ezure ; Yasushi Sato ; Masahiro Aizaki ; Syuichi Okada ; Yasuo Morishita
Japanese Journal of Cardiovascular Surgery 2006;35(2):114-117
		                        		
		                        			
		                        			A 51-year-old man with osteogenesis imperfecta and who had aortic regurgitation was admitted to our hospital for aortic valve replacement. His height was 146cm and his weight was 49kg. The patient had suffered from bone fractures several times since childhood. Bone deformity, blue sclera and his status were clinically indicative of osteogenesis imperfecta. Aortic valve replacement with a 25mm SJM® prosthetic valve was successfully performed for aortic valve insufficiency and slight annulo-aortic ectasia. Soft tissues and the sternum were fragile. Pathological examination (Elastica-Masson stain) of the aortic valve and left ventricular wall revealed a loss of fibrous tissues and remarkable thickening due to elastic fibers. The patient was discharged 31 days after surgery. Osteogenesis imperfecta is one of the collagen diseases caused by gene abnormality, in which fragile bones are easily fractured. Cardiovascular disease is rarely associated with it and the surgery-related mortality rate is reported to be approximately 30%, due to bleeding.
		                        		
		                        		
		                        		
		                        	
9.PENDULAR MOTION EFFICIENCY DURING VARIOUS WALKING SPEEDS IN ELDERLY WOMEN
HIKARU TANAKA ; TAKAFUMI FUCHIMOTO ; MISAKA KIMURA ; MASAHIRO KANEKO
Japanese Journal of Physical Fitness and Sports Medicine 2003;52(5):621-630
		                        		
		                        			
		                        			In the context of energetics related to a pendular model, the mechanical power (W) and ‘pendular motion efficiency’ (PME) were determined during walking of the subjects who consist of 37 healthy elderly women (65-85 years) and 21 young women (18-25 years) . Using a force plate, the potential and kinetic energies of the body's centre of mass were measured at various constant speeds. Walking speeds were selected and controlled by a newly devised pace-maker. PME, which is equivalent to ‘% recovery’ by Cavagna (1976), indicates a sort of efficiency in transforming potential energy into kinetic energy and vice versa. The external power to accelerate the body (Wext ), which is thought to be supplied by muscles, increased with walking speed, and the rate of increase in Wext tended to be greater in the elderly than in the young subjects. It was noted that the maximal PME values at the optimum speed in both age groups were comparable, but PME values in the elderly decreased more markedly than in the young subjects as walking speed deviated from the optimum. This fact suggests that an adaptability to different walking speeds reduced in the elderly population.
		                        		
		                        		
		                        		
		                        	
10.Reliability and validity of a simple endurance test for the elderly; shuttle stamina walk test(SSTw).
MISAKA KIMURA ; YASUKO OKAYAMA ; YASUHITO TANAKA ; MASAHIRO KANEKO
Japanese Journal of Physical Fitness and Sports Medicine 1998;47(4):401-410
		                        		
		                        			
		                        			To develop a simple test of endurance capacity in the elderly, we evaluated the reliability and validity of the shuttle stamina walk test (SSTw), in which the running in the shuttle stamina test (SST : 3-minute shuttle running along a 10-meter course) was changed to walking.
We found that: 1) The walking distance in the SSTw was correlated with Vo2max (r=0.827), 2) the walking distance showed a correlation between the first test and a re-test (r=0.853), 3) the mean peak heart rate during the test was 86.3% of the estimated maximum heart rate with no difference according to age or sex, 4) subjective evaluation of the intensity of exercise was expressed as“fairly light”or“somewhat hard”by 73.7% of the subjects, 5) the results of the SSTw reflected the subjects' self-evaluation of endurance capacity, and 6) the age-related percentage reduction of the walking distance in the SSTw was similar to that in V2max in subjects aged 40 years and above.
These results suggest that the SSTw, a simple test of endurance capacity that can be performed safely over a wide range of middle-aged to elderly people including those in late old age and those with a low fitness level, has sufficient reliability and validity.
		                        		
		                        		
		                        		
		                        	
            

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