- 関
- portal vein pressure
WordNet
- turn or go to the port or left side, of a ship; "The big ship was slowly porting"
- an opening (in a wall or ship or armored vehicle) for firing through (同)embrasure, porthole
- sweet dark-red dessert wine originally from Portugal (同)port wine
- a place (seaport or airport) where people and merchandise can enter or leave a country
- located on the left side of a ship or aircraft (同)larboard
- bring to port; "the captain ported the ship at night"
- carry or hold with both hands diagonally across the body, especially of weapons; "port a rifle"
- carry, bear, convey, or bring; "The small canoe could be ported easily"
- drink port; "We were porting all in the club after dinner"
- land at or reach a port; "The ship finally ported"
- modify (software) for use on a different machine or platform
- put or turn on the left side, of a ship; "port the helm"
- the force applied to a unit area of surface; measured in pascals (SI unit) or in dynes (cgs unit); "the compressed gas exerts an increased pressure" (同)pressure level, force per unit area
- an oppressive condition of physical or mental or social or economic distress
- the somatic sensation that results from applying force to an area of skin; "the sensitivity of his skin to pressure and temperature was normal" (同)pressure_sensation
- a force that compels; "the public brought pressure to bear on the government"
- a grand and imposing entrance (often extended metaphorically); "the portals of the cathedral"; "the portals of heaven"; "the portals of success"
PrepTutorEJDIC
- 〈C〉〈U〉『港』 / 〈C〉『港町』,『港市』
- (船の)左舷(さげん);(飛行機の)(機首に向かって)左側 / 左舷の,左側の / 〈かじなど〉‘を'左舷に向ける
- =porthole / (船の)荷役口 / (装甲車・城壁などの)銃眼,砲門
- ポートワイン(ポルトガル原産の甘口のぶどう酒で深紅色)
- 控え銃(つつ)の姿勢(銃をからだの正面に斜めに保持し先端が左肩の近くにくる) / 〈銃など〉‘を'控え銃にする
- 〈U〉『押すこと』,『押しつけること』,圧搾,圧縮;〈C〉〈U〉『圧力』,圧力の強さ / 〈U〉『圧迫』,『強制』 / 〈U〉(不快な)圧迫感 / 〈C〉〈U〉(精神的な)重荷,苦脳;(時間・金銭的)切迫 / 〈U〉多忙,あわただしさ / 《おもに米》…‘に'圧力をかける,強制する(《英》pressurise)
- 〈C〉(堂々とした)門,入り口 / 《複数形》《文》(大きな建物の)正門,表玄関 / 《複数形》《文》(…の)発端《+『of』+『名』》
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2015/11/13 05:55:26」(JST)
[Wiki en表示]
Portal venous pressure is the blood pressure in the hepatic portal vein, and is normally between 5-10 mmHg.[1] Raised portal venous pressure is termed portal hypertension,[2] and has numerous sequelae such as ascites and hepatic encephalopathy.[3][4]
Contents
- 1 Wedged hepatic venous pressure (WHVP)
- 2 Hepatic venous pressure gradient (HVPG)
- 3 References
- 4 External links
Wedged hepatic venous pressure (WHVP)
WHVP is used to estimate the portal venous pressure by reflecting not the actual hepatic portal vein pressure but the hepatic sinusoidal pressure. It is determined by wedging a catheter in a hepatic vein, to occlude it, and then measuring the pressure of proximal static blood (which is reflective of pressure in the sinusoids). WHVP in fact slightly underestimates portal pressure due to sinusoidal equilibration in patients without cirrhosis, but the difference between the two is clinically insignificant. In patients with cirrhotic livers intersinusoidal communication is disrupted such that sinusoidal pressure equilibrium cannot be maintained, and so WHVP becomes a far more accurate measure of portal venous pressure.
Hepatic venous pressure gradient (HVPG)
HVPG is a clinical measurement of the pressure gradient between the WHVP and the free hepatic venous pressures, and thus is an estimate of the pressure gradient between the portal vein and the inferior vena cava. An HVPG of ≥10 mmHg defines clinically significant portal hypertension, and if the measurement exceeds 12 mmHg variceal haemorrhaging may occur.[5] While not widely performed, its assessment in people with chronic liver disease is recommended to monitor response to treatment.[6]
References
- ^ eMedicine - "Esophageal Varices"
- ^ Ascites in Cirrhosis Relative Importance of Portal Hypertension and Hypoalbuminemia DONALI) O. CASTELL, LCDR (MC), USN
- ^ "Portal Hypertension.". Postgrad Med J 23 (264): 451–68. Oct 1947. doi:10.1136/pgmj.23.264.451-a. PMID 21313474.
- ^ Sauerbruch, T.; Trebicka, J. (2014). "Future therapy of portal hypertension in liver cirrhosis - a guess.". F1000Prime Rep 6: 95. doi:10.12703/P6-95. PMID 25374673.
- ^ Kumar, A.; Sharma, P.; Sarin, S. K. (2008). "Hepatic venous pressure gradient measurement: Time to learn!". Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology 27 (2): 74–80. PMID 18695309.
- ^ Triantos, C. K.; Nikolopoulou, V.; Burroughs, A. K. (2008). "Review article: The therapeutic and prognostic benefit of portal pressure reduction in cirrhosis". Alimentary Pharmacology & Therapeutics 28 (8): 943–952. doi:10.1111/j.1365-2036.2008.03798.x. PMID 18627364.
External links
- Portal Pressure at the US National Library of Medicine Medical Subject Headings (MeSH)
UpToDate Contents
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English Journal
- Branched-chain amino acids alleviate nonalcoholic steatohepatitis in rats.
- Li T, Geng L, Chen X, Miskowiec M, Li X, Dong B.Sourcea Department of Intervention and Vascular Surgery, Peking University Third Hospital, 49 Huayuan North Road, Beijing 100083, P.R. China.
- Applied physiology, nutrition, and metabolism = Physiologie appliquée, nutrition et métabolisme.Appl Physiol Nutr Metab.2013 Aug;38(8):836-43. doi: 10.1139/apnm-2012-0496. Epub 2013 Mar 8.
- Nonalcoholic steatohepatitis (NASH) is a prevalent disease in countries around the world. The branched-chain amino acids (BCAAs) leucine, isoleucine, and valine cannot be synthesized by the body and have been shown to promote muscle buildup; thus, it is logical to suggest that BCAAs can reduce fat d
- PMID 23855271
- Hepatic and systemic hemodynamic derangements predict early mortality and recovery in patients with acute-on-chronic liver failure.
- Garg H, Kumar A, Garg V, Kumar M, Kumar R, Sharma BC, Sarin SK.SourceDepartment of Hepatology, Institute of Liver & Biliary Sciences (ILBS), New Delhi, India; Department of Gastroenterology, GB Pant Hospital, New Delhi, India.
- Journal of gastroenterology and hepatology.J Gastroenterol Hepatol.2013 Aug;28(8):1361-7. doi: 10.1111/jgh.12191.
- BACKGROUND AND AIMS: Acute-on-chronic liver failure (ACLF) is a clinical entity where there is a potential for reversibility of hepatic dysfunction once the acute hepatic insult resolves. The portal and systemic hemodynamics in ACLF patients to study its relevance in determining the clinical outcome
- PMID 23488990
- Chronic liver disease: noninvasive subharmonic aided pressure estimation of hepatic venous pressure gradient.
- Eisenbrey JR, Dave JK, Halldorsdottir VG, Merton DA, Miller C, Gonzalez JM, Machado P, Park S, Dianis S, Chalek CL, Kim CE, Baliff JP, Thomenius KE, Brown DB, Navarro V, Forsberg F.SourceDepartment of Radiology, Department of Gastroenterology and Hepatology, and Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, 7 Main, Suite 763, 132 S 10th St, Philadelphia, PA 19107; School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pa.
- Radiology.Radiology.2013 Aug;268(2):581-8. doi: 10.1148/radiol.13121769. Epub 2013 Mar 22.
- Purpose: To compare subharmonic aided pressure estimation (SHAPE) with pressure catheter-based measurements in human patients with chronic liver disease undergoing transjugular liver biopsy. Materials and Methods: This HIPAA-compliant study had U.S. Food and Drug Administration and institutional rev
- PMID 23525208
Japanese Journal
- Epoprostenol Therapy for Pulmonary Arterial Hypertension
- 門脈体循環シャントによる肺高血圧症及び肺内シャントを合併したNoonan症候群の1例
- 生体肝移植後の遅発性門脈狭窄に対する門脈ステント留置術の1例
Related Links
- Wedged hepatic venous pressure (WHVP) [edit] WHVP is used to estimate the portal venous pressure by reflecting not the actual hepatic portal vein pressure but the hepatic sinusoidal pressure. It is determined by wedging a catheter ...
- Definition of portal pressure in the Definitions.net dictionary. Meaning of portal pressure. What does portal pressure mean? Information and translations of portal pressure in the most comprehensive dictionary definitions resource on ...
★リンクテーブル★
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- 英
- portal vein pressure PVP, portal pressure
- 正常範囲:100-150mmH2O。200mmH2O以上は異常 (YN.B-58) → 7.4-11mmHg
- 20cmH2Oを超えると食道静脈瘤、胃静脈瘤が形成されやすくなる
臨床関連
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- 関
- portal pressure
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- 関
- gateway
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- 関
- portal vein
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