| 영문 | prosthetic valve | 한글 | 인공판막 |
|---|---|---|---|
| 설명 | 심장 내부의 인공판막. 심장의 판막이 어떤 원인으로 손상되어 판막의 기능이 유지될 수 없을 때 이 판막을 성형해서 다시 사용하거나(판막성형술) 인공판막으로 치환(판막치환술)해 주어야 한다. 인공판막에는 크게 두 가지가 있는데 하나는 돼지나 소 등의 생체조직으로 만든 조직판막이고 다른 하나는 금속재질로 만든 기계판막이다. 이 두 판막은 서로 장단점이 있는데, 조직판막은 수명이 10년 정도로 짧은 단점이 있는 반면에 판막 주위에 혈액응고가 적어 항응고제 복용이 필요 없고, 손상이 서서히 일어난다. |
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| 영문 | valve | 한글 | 판막 |
|---|---|---|---|
| 설명 | 관 혹은 통로에 있는 막과 같은 주름. 내용물의 역류를 막는다. 1.심장판막: 우심방과 우심실사이의 삼첨판, 좌심방과 좌심실사이의 승모판, 우심실과 폐동맥사이의 폐동맥반월판, 좌심실과 대동맥사이의 대동맥반월판이 있다. 2.정맥판막: 정맥에서 발견되는 내막의 작은 첨 혹은 주름. 탄력성이 적어 역류되기 쉬운 정맥혈의 흐름을 역류없이 정상적인 방향으로 지속되도록 해준다. 3.인공판막: 심장판막부족이나 심장판막협착이 있어 더이상 자신의 판막으로는 생존이 불가능할 때 대신 이식하게 되는 인공판막을 말한다. 크게 동물의 조직을 이용한 것과 그렇지 않은 것으로 양분할 수 있다. 동물의 조직을 이용한 것은 주로 돼지나 소의 판막 또는 심외막 등을 이용하며, 그렇지 않은 것은 특수한 금속을 이용하여 만든다. |
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| SRD | service-related disability; Society for the Relief of Distress; Society for the Right to Die; sodium... |
|---|---|
| UNDRO | United Nations Disaster Relief Organization |
| WMR | work metabolic rate; World Medical Relief |
| AVA | activity vector analysis; antiviral antibody; aortic valve area; aortic valve atresia; arteriovenous... |
| AVO | aortic valve opening; aortic valve orifice; atrioventricular opening |
| divergence excess exotropia | Exotropia in which the strabismus is notably greater for far vision than for near vision. (05 Mar 2000) |
|---|---|
| iodine excess | Just as too little iodine can cause thyroid disease, so may prolonged intake of too much iodine also lead to the development of goiter (swelling of the thyroid gland) and hypothyroidism (abnormally low thyroid activity). Certain foods and medications contain large amounts of iodine. Examples include seaweed; iodine-rich expectorants (such as sski and lugol's solution) used in the treatment of cough, asthma, chronic pulmonary disease; and amiodarone (cardorone), an iodine-rich medication used in the control of abnormal heart rhythms (cardiac arrhythmias). (12 Dec 1998) |
| iron excess | Iron overload can damage the heart, liver, gonads and other organs. Iron overload is a particular risk in people who may have certain genetic conditions (haemochromatosis) sometimes without knowing it and also in people receiving recurrent blood transfusions. According to the national academy of sciences, the recommended dietary allowances of iron are 15 milligrams per day for women and 10 milligrams per day for men. (12 Dec 1998) |
| excess | 1. The state of surpassing or going beyond limits; the being of a measure beyond sufficiency, necessity, or duty; that which exceeds what is usual or prover; immoderateness; superfluity; superabundance; extravagance; as, an excess of provisions or of light. "To gild refined gold, to paint the lily, To throw a perfume on the violet, . . . Is wasteful and ridiculous excess." (Shak) "That kills me with excess of grief, this with excess of joy." (Walsh) 2. An undue indulgence of the appetite; transgression of proper moderation in natural gratifications; intemperance; dissipation. "Be not drunk with wine, wherein is excess." (Eph. V. 18) "Thy desire . . . Leads to no excess That reaches blame." (Milton) 3. The degree or amount by which one thing or number exceeds another; remainder; as, the difference between two numbers is the excess of one over the other. <geometry> Spherical excess, the amount by which the sum of the three angles of a spherical triangle exceeds two right angles. The spherical excess is proportional to the area of the triangle. Origin: OE. Exces, excess, ecstasy, L. Excessus a going out, loss of self-possession, fr. Excedere, excessum, to go out, go beyond: cf. F. Exces. See Exceed. Source: Websters Dictionary (01 Mar 1998) |
| excess annual growth | The amount by which new forest growth exceeds removal in a year. The annual quantity of wood produced in a forest in excess of market demand. (05 Dec 1998) |
| excess lactate | The increase in lactate concentration beyond what would be expected from the increase in pyruvate concentration resulting from a change in redox potential; used as an index of anaerobic carbohydrate metabolism. (05 Mar 2000) |
| zinc excess | Too much zinc can cause gastrointestinal irritation (upset stomach), interfere with copper absorption and cause copper deficiency, and (like too little zinc) cause immune deficiency. According to the national academy of sciences, the recommended dietary allowances of zinc are 12 milligrams per day for women and 10 milligrams per day for men. (12 Dec 1998) |
| alveolar gas | The gas in the pulmonary alveoli, where O2-CO2 exchange with pulmonary capillary blood occurs. Synonym: alveolar air. (05 Mar 2000) |
| alveolar gas equation | The equation defining the steady state relation of the alveolar oxygen pressure to the barometric pressure, inspired gas composition, alveolar carbon dioxide pressure, and respiratory exchange ratio; the equation is used in various forms depending upon which simplifying assumptions are acceptable for different applications. (05 Mar 2000) |
| anaesthetic gas | A gas or a liquid with sufficient vapor pressure to produce general anaesthesia when breathed. (05 Mar 2000) |
| arterial blood gas | A test which analyses arterial blood for oxygen, carbon dioxide and bicarbonate content in addition to blood pH. Used to test the effectiveness of respiration. Acronym: ABG (17 Oct 1997) |
| bivalent gas gangrene antitoxin | Antitoxin specific for the toxins of Clostridium perfringens and C. Septicum. (05 Mar 2000) |
| blood gas analysis | <investigation> A test which analyses arterial blood for oxygen, carbon dioxide and bicarbonate content in addition to blood pH. Used to test the effectiveness of respiration. (27 Sep 1997) |
| blood gas monitoring, transcutaneous | The noninvasive measurement or determination of the partial pressure (tension) of oxygen and/or carbon dioxide locally in the capillaries of a tissue by the application to the skin of a special set of electrodes. These electrodes contain photoelectric sensors capable of picking up the specific wavelengths of radiation emitted by oxygenated versus reduced haemoglobin. (12 Dec 1998) |
| carbonic acid gas | <biochemistry, physiology> A metabolic byproduct of carbohydrate metabolism. Carbon Dioxide collects in the tissues, is cleared by the blood (via the veins) and removed from the body via the lungs when we exhale air. Abbreviation: CO2 (13 Nov 1997) |