|
| |
| | Chapter 14 - Section 11: First Principles of Gastroenterology |
 | | Measurement of portal pressure is mostly used for research purposes, as its invasiveness precludes wide clinical use. | | | One is for predicting responses to surgical shunting procedures: presinusoidal conditions generally have well-preserved hepatocellular function and thus respond well to diversion of portal blood, whereas sinusoidal and postsinusoidal conditions tend to be associated with varying degrees of hepatic insufficiency. | | | Since portal pressure is the product of portal blood flow and intrahepatic resistance, any condition causing an increase in flow or resistance will increase portal pressure. |
|
http://gastroresource.com/GITextbook/en/Chapter14/14-11.htm
(2095 words)
|
|
| |
| | eMedicine - Portal Hypertension : Article by Jesus Carale, MD |
| | Portal pressure is reduced to 12 mm Hg, and portal flow is maintained in 80% of patients. | | | Portal hypertension is maintained in the splanchnic and portal venous system, and it maintains portal flow to the liver. | | | Many conditions are associated with portal hypertension (see Causes). |
|
http://www.emedicine.com/med/topic1889.htm
(6121 words)
|
|
| |
| | THE MERCK MANUAL, Sec. 4, Ch. 38, Clinical Features Of Liver Disease |
| | Portal hypertension results from increased portal flow or, in most cases, increased resistance to flow. | | | Bleeding from portal hypertensive gastropathy is managed by pharmacologic lowering of portal pressure. | | | Proof of portal hypertension requires portal pressure measurement, but this is rarely performed; clinical evidence usually suffices. |
|
http://www.merck.com/pubs/mmanual/section4/chapter38/38d.htm
(1386 words)
|
|
| |
| | Portal hypertension - Wikipedia, the free encyclopedia |
| | Many conditions can result in portal hypertension, but it is usually the result of cirrhosis of the liver. | | | Consequences of portal hypertension are caused by blood being forced down alternate channels by the increased resistance to flow through the portal system. | | | The most definitive treatment of portal hypertension is a liver transplant. |
|
http://en.wikipedia.org/wiki/Portal_hypertension
(236 words)
|
|
| |
| | eMedicine - Portal Hypertension : Article by Ali Nawaz Khan, MBBS, FRCP, FRCR |
| | The degree of portal venous pressure is poorly correlated with the apparent degree of cirrhosis and fibrosis; a much better correlation is made with the degree of nodule formation. | | | As portal venous flow is compromised further, forward flow may be seen only during systole, with reversed flow occurring during diastole. | | | The rate of blood flow is greatest at the center of the vessel and is least at its margins; therefore, the average flow across a segment of the vessel is used to overcome the internal variation resulting from respiration and transmitted cardiac pulsation. |
|
http://www.emedicine.com/radio/topic570.htm
(11348 words)
|
|
| |
| | Portal Hypertension (PHTN) |
| | Another source of resistance could be the collateral circulation which begins as a consequence of portal hypertension to ease the tension from the portal system. | | | - in 1800, splenoctomy was the primary therapy for portal hypertension because they noticed that enlarged spleen often seen in patients with cirrhosis led to increased portal venous flow. | | | - There is no definitive treatment for portal hypertension. |
|
http://www.angelfire.com/ky/IBMS/phtn.html
(1181 words)
|
|
| |
| | Portal Hypertension: Clinical Manifestations of Liver Disease: Merck Manual Home Edition |
| | If the bleeding continues or recurs repeatedly, a surgical procedure may be done to create a bypass (called a shunt) between the portal venous system and the general (systemic) venous system. | | | In rare cases, a needle can be inserted through the abdominal wall and into the liver or spleen to directly measure pressure in the portal system (manometry). | | | To reduce the risk of bleeding from esophageal varices, a doctor may try to reduce the pressure in the portal vein. |
|
http://www.merck.com/mmhe/sec10/ch135/ch135e.html
(691 words)
|
|
| |
| | ScienceDaily: Researchers Uncover Mechanisms Leading To Portal Hypertension |
| | But portal hypertension affects blood flow to the liver-related systems. | | | He and his colleagues then took the research a step further, showing that if the process can be interrupted, the hypertension subsides. | | | Decreased Pain Perception May Help To Identify Hypertension Risk (October 11, 1999) -- Decreased perception of pain may serve as a marker for risk of hypertension, according to research conducted by Christopher R. France, PhD, Ohio University. |
|
http://www.sciencedaily.com/releases/2005/09/050930083357.htm
(1780 words)
|
|
| |
| | Liver fibrosis (NCPF) and portal hypertension |
| | Immunological studies in cirrhotic and non-cirrhotic portal fibrosis. | | | Further longitudinal study of these cases is needed to understand the importance of this clinical problem. | | | The surgical results were superior to those following mesentericocaval and portacaval shunt in our earlier series of children of comparable mean age, body weight, and postoperative interval when studied functionally. |
|
http://www.dngmresfoundation.org/htmlfiles/Liverfibrosis.htm
(1190 words)
|
|
| |
| | Portal Hypertension |
| | to the portal vein, with a needle under ultrasonographic and fluoroscopic | | | Increases in portal pressure cause development of a portosystemic collateral circulation with resultant compensatory portosystemic | | | Since endoscopic therapy and medications are no longer controlling your bleeding, we encourage you to participate in this study. |
|
http://www.indiasurgeons.com/port_ht.htm
(2450 words)
|
|
| |
| | GE Healthcare - Clinical Case Studies - Sonography - Portal Venous Hypertension |
| | Any recent surgical intervention of shunt placement within the portal venous system is documented in the patient history work sheet. | | | Multiple vascular channels near the portal hepatis and/or splenic hilum. | | | GE Healthcare - Clinical Case Studies - Sonography - Portal Venous Hypertension |
|
http://www.gehealthcare.com/usen/ultrasound/products/best_prac_pvh.html
(2061 words)
|
|
| |
| | Portal hypertension |
| | Portal hypertension is defined as a pressure > 12 mmHg | | | Have wide diameter and decompress all of portal circulation | | | Normal portal pressure = 5 - 10 mmHg |
|
http://www.surgical-tutor.org.uk/system/abdomen/portal_hypertension.htm
(185 words)
|
|
| |
| | Treatment of Patients with Cirrhosis and Portal Hypertension |
| | Additionally, peripheral and splanchnic vasodilatation with the resulting hyperdynamic circulatory state is typical of cirrhosis and portal hypertension. | | | The other complications of cirrhosis occur mainly as a consequence of portal hypertension and the hyperdynamic circulation. | | | As mentioned previously, the combination of a nonselective beta-blocker and ISMN has a synergistic portal pressure-reducing effect and could theoretically be more effective than beta-blockers alone. |
|
http://hepatitis.va.gov/vahep?page=tp03-03-02-01
(9032 words)
|
|
| |
| | Portal Hypertension -- eCureMe.com |
| | Portal hypertension is a condition in which there is an increase in the pressure within the portal vein. | | | By doing this, the pressure within the portal vein is reduced and, hopefully, the complications will also be reduced. | | | The first thing to consider in the treatment of this condition is the underlying cause of the problem. |
|
http://www.ecureme.com/emyhealth/data/Portal_Hypertension.asp
(1159 words)
|
|
| |
| | Portal Hypertension - Children's Hospital Boston |
| | Doppler flow studies may be used to assess blood flow throughout the portal venous system. | | | Symptoms that suggest portal hypertension may be evaluated by your child's physician with the following diagnostic procedures in addition to taking a complete medical history and performing a physicial examination | | | Symptoms of portal hypertension may resemble other liver conditions or medical problems. |
|
http://www.childrenshospital.org/az/Site1469/printerfriendlypageS1469P0.html
(792 words)
|
|
| |
| | Cirrhosis and Portal Hypertension -- familydoctor.org |
| | If this procedure isn’t successful, a person with portal hypertension may need to have a surgeon connect the blood vessels in such a way that the blood doesn’t flow through the liver. | | | Your doctor may use Doppler ultrasound (sound waves used to make a picture) to look at your liver. | | | familydoctor.org Home > Conditions A to Z > Addictions > Cirrhosis and Portal Hypertension |
|
http://familydoctor.org/handouts/188.html
(822 words)
|
|
| |
| | Portal Hypertension |
| | As fibrosis increases, a point is reached at which blood flow in hindered by distortion of the usual flow of blood and the portal pressure must increase to preserve flow. | | | Normally, the pressure is low compared with the arterial pressure, but slightly above the pressure in the other veins in our body system. | | | Usually, portal hypertension is secondary to liver disease. |
|
http://home3.inet.tele.dk/omni/portal_hypertension.htm
(1053 words)
|
|
| |
| | Re: Non Cirrhotic Portal Hypertension |
| | I do not understand why the pancreas is enlarged and the relationship to the portal hypertension. | | | : We are all quite concerned because we found out an article dated 13 years ago in which was stated that a person with Non Cirrhotic Portal Hypertension would probably live only 5 years. | | | Noncirrhotic portal hypertension can result from a number of causes including thrombosis of the hepatic veins, industrial exposures, certain infections such as schistosomiasis and portal vein thrombosis. |
|
http://www.medhelp.org/forums/gastro/archive/2374.html
(255 words)
|
|
| |
| | Portal hypertension: Facts and details from Encyclopedia Topic |
| | Consequences of portal hypertension are caused by blood being forced down alternate channels by the increased resistance to flow through the portal system. | | | Hepatic encephalopathy is a condition (usually caused by liver cirrhosis and its resultant portal hypertension) where toxins from the gut damage cells of the... | | | The portal vein is a major vein in the human body draining blood from the digestive system and its associated glands.... |
|
http://www.absoluteastronomy.com/encyclopedia/p/po/portal_hypertension.htm
(740 words)
|
|
| |
| | New York University Interventional Radiology - Portal Hypertension |
| | Laxatives, lactalose, and antibiotics (medications that remove toxins from the intestines). | | | Along with these endoscopic therapies, patients receive intravenous blood pressure-lowering medications, such as: | | | Portal hypertension is assumed if a person with liver disease also has ascites, varices, or encephalopathy. |
|
http://nyuir.vasculardomain.com/images/uploaded/nyuir/ph.cfm
(460 words)
|
|
| |
| | Portal Hypertension: Increased Portal Vein Blood Pressure |
| | This increased blood pressure in the portal venous system is called portal hypertension. | | | Most people with portal hypertension show no initial symptoms of the condition. | | | Blood clots in the liver or the portal vein may cause portal hypertension, though this condition is less common. |
|
http://www.liverdisordersfocus.com/liver-disorders/portal-hypertension.php
(676 words)
|
|
| |
| | Portal hypertension |
| | Increased portal venous pressure (> 10 mm Hg.) that occurs in association with splanchnic vasodilatation, portosystemic collateral formation and a hyperdynamic circulation. | | | Course is generally progressive and may produce one or more devastating clinical disorders. | | | No known genetic patterns except those associated with specific hepatic diseases that cause portal hypertension |
|
http://www.5mcc.com/Assets/SUMMARY/TP0725.html
(119 words)
|
|
| |
| | Portal Hypertension |
| | Patients with the condition are at risk of internal bleeding or other life-threatening complications. | | | Seen most frequently in patients with liver disease such as cirrhosis or hepatitis, portal hypertension is a condition in which the normal flow of blood through the liver is slowed or blocked by scarring or other damage. | | | TIPS can often help a condition called portal hypertension, which occurs when the normal flow of blood through the blood vessels in the liver is slowed or blocked by scarring or other damage. |
|
http://www.via-med.com/portalhypertension.aspx
(1015 words)
|
|
| |
| | PORTAL HYPERTENSION |
| | alcoholic cirrhosis) to blood flow in the portal venous system. | | | Any increase in the portal vein (in the liver) pressure due to anatomic or functional obstruction (e.g. | | | Indicators of portal hypertension are: esophageal varices, hemorrhoids, enlarged veins on the anterior abdominal wall (caput Medusae), and ascites (fluid within the abdominal cavity). |
|
http://www.medhelp.org/glossary/new/gls_3430.htm
(85 words)
|
|
| |
| | Portal Hypertension - Strong Heart and Vascular Center - Rochester, NY |
| | Portal hypertension may be suspected if a person with liver disease also has one of the symptoms above. | | | If endoscopic treatments cannot treat varices effectively the following procedures may be used: | | | Treatment for portal hypertension often begins when varices bleed. |
|
http://www.stronghealth.com/services/surgical/vascular/portalhypertension.cfm
(507 words)
|
|
| |
| | Liver cirrhosis |
| | As said before, portal hypertension is the increased pressure in the portal vein and its tributaries resulting from increased resistance to the blood flow into the liver, and is usually caused by the scarring process of cirrhosis. | | | Another possibility is to surgically redirect some of the blood flow from the portal vein around the liver. | | | Portal hypertention is a state in which the pressure within the hepatic portal vein is increased, causing enlargement of the spleen, enlargement of the veins in the oesophagus (gullet) (which may rupture to cause severe bleeding), and accumulation of fluid in the peritoneal cavity (ascites). |
|
http://www.hepatitis.org.uk/s-crina/cirrhosis-main-f3.htm
(1325 words)
|
|
| |
| | Introduction: Portal hypertension - WrongDiagnosis.com |
| | Researching symptoms of Portal hypertension: Further information about the symptoms of Portal hypertension is available including a list of symptoms of Portal hypertension, or alternatively return to research other symptoms in the symptom center. | | | Causes of Portal hypertension: Research more detailed information about the causes of Portal hypertension, other possibly hidden causes of Portal hypertension, or other general information about Portal hypertension. | | | Portal hypertension information: Raised blood pressure in the vein supplying the liver |
|
http://www.wrongdiagnosis.com/p/portal_hypertension/intro.htm
(152 words)
|
|
| |
| | Portal Hypertension - Compare Prices & Reviews at Smarter |
| | Your use of this Web site constitutes acceptance of the Smarter.com Privacy Policy and Terms & Conditions | | | Portal Hypertension - Compare Prices & Reviews at Smarter |
|
http://www.smarter.com/books-1/product/portal_hypertension-1337605
(138 words)
|
|
| |
| | SageMaker.com - enterprise portal |
| | What would you change if you could live a life without limits? | | | Search the web's top rated sites for enterprise portal. | | | The Best enterprise portal Directory on the Web |
|
http://www.sagemaker.com
(71 words)
|
|
| |
| | portal hypertension: classification |
| | portal vein obstruction (extrinsic compression, phlebitis, OC, coagulopathy, tumor invasion, pancreatitis, neonatal omphalitis) |
|
http://chorus.rad.mcw.edu/doc/00862.html
(21 words)
|
|
|
