| 영문 | esophageal varix | 한글 | 식도정맥류 |
|---|---|---|---|
| 설명 | 위, 소장이나 대장에서 영양분을 흡수하기위한 모세혈관조직은 모두 간으로 연결이 된다. 즉 소화기에서 흡수한 영양분이 가득한 피는 모두 간으로 연결되는데 이것을 문맥계(portal system)라고 한다. 어떤 원인으로 인해서 문맥계의 압력이 높아지게 되는 것을 문맥고혈압(portal hypertension)이라 말한다. 문맥압의 상승이 있는 경우에는 문맥계와 연결이 되어 있는 모든 부분의 정맥의 압력이 높아지고 정맥의 순환이 정지된 상태가 된다. 식도의 정맥도 문맥계와 연결이 있어서 만약 문맥압의 항진이 있는 경우에 역시 이곳의 정맥의 혈액이 순환이 되지 않고 정체되어 있어서 많은 혈액이 식도의 정맥에 고이게 되어서 정맥의 확장이 일어난다. 이렇게 확장되어 있는 정맥을 정맥자루(varix)라고 부른다. 이 식도의 정맥자루는 자극에 의해서 파열이 될 수가 있고, 만약 파열이 되어 적절한 조치가 취해지지 않는 경우에는 출혈로 사망하기도 한다. 문맥고혈압의 원인으로는 간경화 등의 간질환, 문맥을 기계적으로 막는 질환 등을 들 수 있다. 이중에서 가장 많은 것은 간경화증에 의한 경우이다. |
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| EA | 1) Esophageal Atresia Types 1. Esophageal Atresia with Dis... |
|---|---|
| VATER Associations | Vertebral defects Anal atresia Tracheo-Esophageal fistula ... |
| EM | early memory; ejection murmur; electromagnetic; electron micrograph; electron microscopy, electron m... |
| ES | ejection sound; elastic stocking; electrical stimulus, electrical stimulation; electroshock; emergen... |
| CNE | chief nurse executive; chronic nervous exhaustion; concentric needle electrode |
| CPE | carbon paste electrode |
|---|---|
| HMDE | Hanging Mercury Drop Electrode |
| ISE | Ion-Selective Electrode |
| SCE | saturated calomal electrode |
| SEVC | single electrode voltage clamp |
| supra-esophageal | <botany> Situated above, or on the dorsal side of, the oesophagus; as, the supra-esophageal ganglion of Crustacea. Alternative forms: supra-oesophagal, and supra-oesophageal. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| esophageal | <anatomy> Pertaining to the oesophagus. Alternative forms: sophageal. (01 Mar 1998) |
| active electrode | A small electrode whose exciting effect is used to stimulate or record potentials from a localised area. Synonym: exciting electrode, localizing electrode, therapeutic electrode. (05 Mar 2000) |
| calomel electrode | An electrode in which the wire is connected through a pool of mercury to a paste of mercurous chloride (Hg2Cl2, calomel) in a potassium chloride solution covered by more potassium chloride solution; commonly used as a reference electrode. (05 Mar 2000) |
| carbon dioxide electrode | A glass electrode in a film of bicarbonate solution covered by a thin plastic membrane permeable to carbon dioxide but impermeable to water and electrolytes; the carbon dioxide pressure of a gas or liquid sample quickly equilibrates through the membrane and is measured in terms of the resulting pH of the bicarbonate solution, as sensed by the glass electrode; commonly used to analyze arterial blood samples. Synonym: Severinghaus electrode. (05 Mar 2000) |
| redox electrode | An electrode capable of measuring oxidation-reduction potential. See: quinhydrone electrode. Synonym: redox electrode. (05 Mar 2000) |
| reference electrode | An electrode expected to have a constant potential, such as a calomel electrode, and used with another electrode to complete an electrical circuit through a solution; e.g., when a reference electrode is used with a glass electrode for pH measurement, changes in voltage between the two electrode's can be attributed to the effects of pH on the glass electrode alone. (05 Mar 2000) |
| glass electrode | A thin-walled glass bulb containing a standard buffer solution, quinhydrone, and a platinum wire; when immersed in an unknown solution, a potential difference develops that varies with the pH of the unknown solution; this difference can be made to give the pH; used in pH meters. (05 Mar 2000) |
| central terminal electrode | In electrocardiography, an electrode in which connections from the three limbs (right arm, left arm, and left leg) are joined and led to the electrocardiograph to form the indifferent electrode, theoretically at zero potential for the system. (05 Mar 2000) |
| Clark electrode | An oxygen electrode consisting of the tip of a platinum wire exposed to a thin film of electrolyte covered by a plastic membrane permeable to oxygen but not to water or the electrolyte. When a certain voltage is applied, oxygen is destroyed at the platinum surface; the flow of current is then proportional to the rate at which oxygen can diffuse to the platinum surface from the gas or liquid sample outside the membrane, and is thus a measure of the oxygen pressure in the sample; commonly used to measure oxygen pressure in arterial blood samples. (05 Mar 2000) |
| positive electrode | <microscopy> The electrode to which a major flow of electrons takes place internally (as in a cathode-ray tube) or to which an external positive voltage supply is connected. (05 Aug 1998) |
| Severinghaus electrode | A glass electrode in a film of bicarbonate solution covered by a thin plastic membrane permeable to carbon dioxide but impermeable to water and electrolytes; the carbon dioxide pressure of a gas or liquid sample quickly equilibrates through the membrane and is measured in terms of the resulting pH of the bicarbonate solution, as sensed by the glass electrode; commonly used to analyze arterial blood samples. Synonym: Severinghaus electrode. (05 Mar 2000) |
| hydrogen electrode | The ultimate standard of reference in all pH determinations, limited and technically difficult to use, consisting of a piece of spongy platinum black partly immersed in a solution in a small glass tube; the tube above the solution is filled with hydrogen gas that is bubbled through the solution and absorbed by the platinum; the electrode thus measures the potential between H2 and H+, the "standard" potential of which (1 atmosphere, 1 molar) is taken as zero; hence, the hydrogen electrode potential measures [H+] or pH. (05 Mar 2000) |
| silent electrode | In unipolar electrocardiography, a remote electrode placed either upon a single limb or connected with the central terminal and paired with an exploring electrode; the indifferent electrode is supposed to contribute little or nothing to the resulting record. Synonym: dispersing electrode, silent electrode. (05 Mar 2000) |
| negative electrode | <chemistry, physics> The electrode in an electrochemical cell toward which cations are drawn and where reduction occurs. The negatively charged electrode in a vacuum tube. (16 Mar 1998) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|