• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 1996년도 학술발표회
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• pp.30-33
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• 1996

This paper presents the technical basis for hot smoke test intended to investigate the effectiveness of smoke ventilation system in both high-rise building and those containing atria and/or galleria. Smoke is particularly serious hazard in these building in which considerable time is required for complete evacuation. It is widely recognised that the effectiveness of large smoke ventilation system can be difficult to confirm by a critical analysis of the system design calculation. Thus a hot smoke test is recently introduced through the experiences of many attempts. Diffusion flames used for hot smoke test have a higher flame length, so that those can not be applied to small compartment. Therefore the objective of this paper is introducing the method of flame control which can be applied to any size of compartment

• 한국동물학회지
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• 제7권2호
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• pp.48-52
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• 1964

1. The auther studied the interrelationship between the sensibility of heart of fishes to neuro-hormones (epinephrine, norepinephrine and acetylcholinie) and 5-hydroxytryptamine and the differentiation of nervous system in the heart . Attempts were also made to develop the similarity and systematic relationship of inter-genus and inter-species. 2. Judging from the reactions to neurohormones, it is considered that inter-genus of locah (Misgurnus mizolepis GNTHER) and eel (Anguilla japonic TEMMINEK & SCHJEGEL) are more closely related than that of Crucian (Carassius carassius L. ). 3. As the sensibility of locach to 50 jhdroxytryptamine is more sensitive over 10, 000 times than that of a Mollusca, Meretrix lusoria RODING, it is very excellent material for the bioassay of 5-jydroxytryptamine.

• Archives of Pharmacal Research
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• 제15권1호
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• pp.95-98
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• 1992

Alcoholic extract of seeds of Sesamum indicum (SI, 1-30mg/kg) caused hypotensive action in anesthetized rats. Heart rate was also decreased at slightly higher doses (10-30 mg/kg). Pretreatment with atropine (2 mg/kg) abolished these cardiovascular responses. In isolated spontaneously beating atria from guinea-pigs. SI caused decrease in force and rate of atrial contractions. In isolated guinea-pig ileum and rat uterus, SI (100-1000 ug/ml) produced contractile responses. All these actions of SI were abolished in the presence of atropine ($1\mu$M). These results indicate that alcoholic extract of seeds of Seamum indicum contains acetylcholine-like constituent(s) which explains some of the folkloric uses of plant.

• Journal of Chest Surgery
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• 제50권2호
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• pp.110-113
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• 2017

A 43-year-old man who had had a history of atrial septal defect (ASD) device closure 31 months previously presented with abrupt chest and back pain along with progressive cardiogenic shock and cardiac arrest. After resuscitation, he was diagnosed with cardiac tamponade. Diagnostic and therapeutic surgical exploration revealed left atrium (LA) perforation due to LA roof erosion from a deficient aortic rim. Device removal, primary repair of the LA perforation site, and ASD patch closure were performed successfully. The postoperative course was uneventful. The patient was discharged after 6 weeks of empirical antibiotic therapy without any other significant complications.

• Journal of Chest Surgery
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• 제12권3호
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• pp.215-224
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• 1979

Corrected transposition of great arteries associated with dextrocardia [I.D.D.] is a very rare congenital cardiac malformation in which the atria and ventricles are in discordant relation, as are the ventricles and great arteries, but the aorta is to the right of the pulmonary artery. A 13 year old male patient who complained cyanosis and dyspnea on exertion for 8 years, was diagnosed as congenitally corrected transposition of great arteries associated with dextrocardia [I.D.D.], large ventricular septal defect, patent foramen ovale and pulmonary stenosis. He was operated on Nov. 22 1978. The ventricular septal defect was closed with Teflon felt and the pulmonary hypoplasia was corrected with Rastelli operation successfully. On 34th postoperative days, complete heart block was occurred and permanent epicardial pacemaker was implanted with good result.

• Journal of Chest Surgery
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• 제19권4호
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• pp.683-687
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• 1986

A direct communication between the left ventricle and right atrium is a relatively uncommon defect. Familiarity with this anomaly has become increasingly important, however, since the preoperative findings may be identical with those of an atrial septal defect. The left ventricle is directly related to the right atrium over. an area of the membranous ventricular septum which extends superior to the septal attachment of the right atrioventricular valve in the LV-RA communication. The clinical triad of a ventricular septal defect murmur, cardiac enlargement, and an arteriovenous shunt at atrial level is characteristic of the malformation. A 2-year-old boy with left ventriculo-right atrial communication has operated at the Maryknoll Hospital. Under the cardiopulmonary bypass, the atrium was opened, there was a jet-blood stream just above the atria-ventricular portion adjacent to the septal leaflet of the tricuspid valve.

• Journal of Chest Surgery
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• 제21권1호
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• pp.143-147
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• 1988

Congenital coronary arteriovenous fistula is a communication of a coronary artery with one of the atria, ventricles, the coronary sinus, the superior vena cava, or the pulmonary artery. We had a successful surgical experience with 63 year-old-female patient who complained substernal chest pain on exertion for 8 years. On auscultation, a continuous murmur was heard at the left second to third intercostal space along the left sternal border. The right cardiac catheterization was revealed to 4% oxygen step up between right ventricle to main pulmonary artery, and Qp/Qs was 1.3:1. The selective coronary arteriography showed markedly tortuous dilated vessel which originated from left coronary artery draining into the main pulmonary artery. The operation performed to mid portion of tortuous and dilated fistula by multiple ligation with 3-0 Mersilene and suture ligation with pledgetted 3-0 Prolene on distal draining site, Postoperative course were uneventful without any symptoms and complications.

• 한국생물물리학회:학술대회논문집
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• 한국생물물리학회 2003년도 정기총회 및 학술발표회
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• pp.31-31
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• 2003

Cardiac atrium is now well-known as an endocrine organ which secretes atrial natriuretic peptide (AMP), participating in the regulation of body fluid and blood pressure. ANP is released mainly from cardiac muscle cells in response to various physiological and pathological conditions to induce atrial stretch. Ca$\^$2+/ may be one of the most important factors affecting ANP secretion even though controversy still persists. The aim of the present study is to investigate the effect of lysophosphatidylcholines (LPCs) and moxonidine on atrial hemodynamics and ANP secretion in hypertrophied atria. LPC is an endogenous phospholipid released from cell membrane during ischemia, and moxonidine is a imidazoline 1 (Il) receptor agonoist.

• Archives of Pharmacal Research
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• 제17권3호
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• pp.150-153
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• 1994

Ethanolic extract of Daucus carota (DC) at the dose of 10-100 mg/kg caused a dose-dependent fall in systolic and diastolic arterial blood pressure in nomotensive anesthetized rats. These effects were not blocked by atropine (1 mg/kg) and pretratment with DC did not alter the pressor response to norepinephrine indicating that cardiovascular effects of DC are independent of cholinergic or adrenergic recptors involvement. In spontaneously beating guinea-pig paired atria, DC induced a concentration-dependent (03-5 mg/ml) decrease in force and rate of atrial contractions. In rabbit thoracic aorta, DC caused inhibition of $K^+$-induced contractions at similar concentrations. These results suggest that the extract may exhibit $Ca^{2+}$ channel blocking-like direct relaxant action on cardiac and smooth muscle preperations and this action may be responsible for its hypotensive effect observed in the in vivo studies.

• Journal of Chest Surgery
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• 제23권3호
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• pp.501-506
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• 1990

Cardiac myxomas are most common benign tumor and comprise approximately 50% of all primary cardiac neoplasms. They are intracavitary tumors occurring within any of the cardiac chambers, but they have a predilection for the atria and particularly the left atrium. Its are usually arise from the region of the limbus of the fossa ovalis. Clinically, they present with various manifestations due to obstruction to blood flow, embolization, and constitutional changes. Excision with the aid of cardiopulmonary bypass has been established as the treatment of choice for these histologically benign, but potentially malignant tumors and has generally produced good results [17]. We have experienced two cases atrial myxomas, one is left, the other is right and resected under established cardiopulmonary bypass, so we report these cases with the review of the literature.