Post surgical photo of brain aneurysm survivor. An aneurysm (or aneurism) is localized, blood-filled dilation (bulge) of a blood vessel caused by disease or weakening of the vessel wall.[1] Aneurysms most commonly occur in arteries at the base of the brain (the circle of Willis) and in the aorta (the main artery coming out of the heart) - this is an aortic aneurysm. This bulge in a blood vessel can burst and lead to death at any time, much like a bulge in an over-inflated innertube. The larger an aneurysm becomes, the more likely it is to burst. Aneurysms can be treated. The International Statistical Classification of Diseases and Related Health Problems (most commonly known by the abbreviation ICD) provides codes to classify diseases and a wide variety of signs, symptoms, abnormal findings, complaints, social circumstances and external causes of injury or disease. ...
The following codes are used with International Statistical Classification of Diseases and Related Health Problems. ...
// I00-I99 - Diseases of the circulatory system (I00-I02) Acute rheumatic fever (I00) Rheumatic fever without mention of heart involvement (I01) Rheumatic fever with heart involvement (I02) Rheumatic chorea (I05-I09) Chronic rheumatic heart diseases (I05) Rheumatic mitral valve diseases (I050) Mitral stenosis (I051) Rheumatic mitral insufficiency (I06) Rheumatic aortic...
The International Statistical Classification of Diseases and Related Health Problems (most commonly known by the abbreviation ICD) provides codes to classify diseases and a wide variety of signs, symptoms, abnormal findings, complaints, social circumstances and external causes of injury or disease. ...
The following is a list of codes for International Statistical Classification of Diseases and Related Health Problems. ...
The Disease Bold textDatabase is a free website that provides information about the relationships between medical conditions, symptoms, and medications. ...
MedlinePlus (medlineplus. ...
Image File history File links Size of this preview: 300 × 400 pixelsFull resolution (300 × 400 pixel, file size: 21 KB, MIME type: image/jpeg) Image taken by Daniel Haggard, sourced from http://danielhaggard. ...
Image File history File links Size of this preview: 300 × 400 pixelsFull resolution (300 × 400 pixel, file size: 21 KB, MIME type: image/jpeg) Image taken by Daniel Haggard, sourced from http://danielhaggard. ...
Section of an artery For other uses, see Artery (disambiguation). ...
The circle of Willis (also called the cerebral arterial circle or arterial circle of Willis) is a circle of arteries that supply blood to the brain. ...
The aorta (generally pronounced or ay-orta) is the largest artery in the human body, originating from the left ventricle of the heart and bringing oxygenated blood to all parts of the body in the systemic circulation. ...
The heart and lungs, from an older edition of Grays Anatomy. ...
An aortic aneurysm is a general term for any swelling (dilatation or aneurysm) of the aorta, usually representing an underlying weakness in the wall of the aorta at that location. ...
The layer of the artery that is in direct contact with the flow of blood is the tunica intima, commonly called the intima. This layer is made up of mainly endothelial cells. Adjacent to this layer is the tunica media, known as the media. This "middle layer" is made up of smooth muscle cells and elastic tissue. The outermost layer (farthest from the flow of blood) is known as the tunica adventitia, the adventitia or the tunica externa. This layer is composed of connective tissue. The tunica intima (or just intima) is the innermost layer of an artery. ...
The endothelium is the layer of thin, flat cells that lines the interior surface of blood vessels, forming an interface between circulating blood in the lumen and the rest of the vessel wall. ...
The tunica media (or just media) is the middle layer of an artery. ...
Cultured Smooth muscle of the aorta. ...
The tunica adventitia (or just adventitia) is the outermost layer of an artery. ...
Connective tissue is one of the four types of tissue in traditional classifications (the others being epithelial, muscle, and nervous tissue. ...
Types
Aneurysms are also described according to shape: Saccular or fusiform. A saccular aneurysm resembles a small sack; a fusiform aneurysm is shaped like a spindle. The word spindle might (or might not) have several meanings: A spindle (shrub), a poisonous shrub or small tree of the genus Euonymus. ...
Aneurysms can be broken down into two groups: true aneurysms and false aneurysms. A true aneurysm involves an outpouching of all three layers of a blood vessel: the intima, the media, and the adventitia. True aneurysms can be due to congenital malformations, infections, or hypertension. A false aneurysm, also known as a pseudoaneurysm, involves an outpouching of only the adventitia. Pseudoaneurysms can be due to trauma involving the intima of the blood vessel, and are a known complication of percutaneous arterial procedures. This page meets Wikipedias criteria for speedy deletion. ...
A congenital disorder is a medical condition or defect that is present at or before birth (for example, congenital heart disease). ...
An infection is the detrimental colonization of a host organism by a foreign species. ...
This article does not cite its references or sources. ...
A pseudoaneurysm, also known as a false aneurysm, is an outpouching of a blood vessel, only involving the innermost layer (tunica intima) and not the other two layers. ...
In medicine, a trauma patient has suffered serious and life-threatening physical injury resulting in secondary complications such as shock, respiratory failure and death. ...
This page meets Wikipedias criteria for speedy deletion. ...
The arterial system The blood vessels are part of the circulatory system and function to transport blood throughout the body. ...
In surgery, percutaneous pertains to any medical procedure where access to inner organs or other tissue is done via needle-puncture of the skin, rather than by using an open approach where inner organs or tissue are exposed (typically with the use of a scalpel). ...
LALA
Locations Aneurysms can occur anywhere where there is a blood vessel, although they are most common in arteries. Most non-intracranial aneurysms (95%) arise distal to the origin of the renal arteries at the infrarenal abdominal aorta, a condition mostly caused by atherosclerosis. The thoracic aorta can also be involved. One common form of thoracic aortic aneurysm involves widening of the proximal aorta and the aortic root, which leads to aortic insufficiency. Aneurysms occur in the legs also, particularly in the deep vessels (e.g., the popliteal vessels in the knee). Arterial aneurysms are much more common, but venous aneurysms do happen (for example, the popliteal venous aneurysm). The arterial system The blood vessels are part of the circulatory system and function to transport blood throughout the body. ...
Section of an artery For other uses, see Artery (disambiguation). ...
It has been suggested that Renal anomalies and Renal plasma threshold be merged into this article or section. ...
AORTA can also mean always-on real-time access, referring to WAN computer networks. ...
The largest artery in the human body, the aorta originates from the left ventricle of the heart and brings oxygenated blood to all parts of the body in the systemic circulation. ...
Aortic insufficiency (AI), also known as aortic regurgitation (AR), is the leaking of the aortic valve of the heart that causes blood to flow in the reverse direction during ventricular diastole, from the aorta into the left ventricle. ...
Popliteal refers to anatomical structures locatedin the back of the knee: popliteal artery popliteal vein popliteal fossa popliteal nerves ...
In geology, a vein is a regularly shaped and lengthy occurrence of an ore; a lode. ...
The arterial circle and arteries of the brain. ...
The circle of Willis (also called the cerebral arterial circle or arterial circle of Willis) is a circle of arteries that supply blood to the brain. ...
Polycystic kidney disease (PKD) is a progressive, genetic disorder of the kidneys. ...
Syphilis is a sexually transmitted disease (STD) caused by spirochaete bacterium, Treponema pallidum. ...
The aorta (generally pronounced or ay-orta) is the largest artery in the human body, originating from the left ventricle of the heart and bringing oxygenated blood to all parts of the body in the systemic circulation. ...
Most cells need to be within a few cell-widths of a capillary to stay alive, and the cells that make up the outer walls of a blood vessel are no exception. ...
The tunica adventitia (or just adventitia) is the outermost layer of an artery. ...
Risks Rupture and blood clotting are the risks involved with aneurysms. Rupture leads to drop in blood pressure, rapid heart rate, and lightheadedness. The risk of death is high except for rupture in the extremities.
Blood clots from popliteal arterial aneurysms can travel downstream and suffocate tissue. Only if the resulting pain and/or numbness are ignored over a significant period of time will such extreme results as amputation be needed. Clotting in popliteal venous aneurysms are much more serious as the clot can embolise and travel to the heart, or through the heart to the lungs (a pulmonary embolism). Risk factors for an aneurysm are diabetes, obesity, hypertension, tobacco smoking, and alcoholism. A thrombus is the final product of blood coagulation, through the aggregation of platelets and the activation of the humoral coagulation system. ...
This article is about the disease that features high blood sugar. ...
This article does not cite its references or sources. ...
Tobacco smoking is the act of burning the dried or cured leaves of the tobacco plant and inhaling the smoke for pleasure or ritualistic purposes, for self-medication, or out of habit and to satisfy addiction. ...
Alcoholism is the consumption of, or preoccupation with, alcoholic beverages to the extent that this behavior interferes with the drinkers normal personal, family, social, or work life, and may lead to physical or mental harm. ...
Aneurysms are a potential complication of Marfan syndrome. Marfan syndrome is an autosomal dominant genetic disorder of the connective tissue characterized by unusually long limbs, great stature, or long toes (or fingers) in proportion to the persons height, as well as a predisposition to cardiovascular disease. ...
Formation Most frequent site of occurrence is in the anterior cerebral artery from the circle of Willis. The occurrence and expansion of an aneurysm in a given segment of the arterial tree involves local hemodynamic factors and factors intrinsic to the arterial segment itself.
The human aorta is a relatively low-resistance circuit for circulating blood. The lower extremities have higher arterial resistance, and the repeated trauma of a reflected arterial wave on the distal aorta may injure a weakened aortic wall and contribute to aneurysmal degeneration. Systemic hypertension compounds the injury, accelerates the expansion of known aneurysms, and may contribute to their formation. The aorta (generally pronounced or ay-orta) is the largest artery in the human body, originating from the left ventricle of the heart and bringing oxygenated blood to all parts of the body in the systemic circulation. ...
Aneurysm formation is probably the result of multiple factors affecting that arterial segment and its local environment.
Hemodynamically, the coupling of aneurysmal dilation and increased wall stress is approximated by the law of Laplace. Specifically, the Laplace law states that the (arterial) wall tension is proportional to the pressure times the radius of the arterial conduit (T = P X R). As diameter increases, wall tension increases, which contributes to increasing diameter. As tension increases, risk of rupture increases. Increased pressure (systemic hypertension) and increased aneurysm size aggravate wall tension and therefore increase the risk of rupture. In addition, the vessel wall is supplied by the blood within its lumen in humans. Therefore in a developing aneurysm, the most ischemic portion of the aneurysm is at the farthest end, resulting in weakening of the vessel wall there and aiding further expansion of the aneurysm. Thus eventually all aneurysms will eventually, if left to complete their evolution, rupture without intervention. In dogs, collateral vessels supply the vessel and aneurysms are rare. Laplaces law or The law of Laplace may refer to several concepts, Biot-Savart law, in electromagnetics, it describes the magnetic field set up by a steady current density. ...
In medicine, ischemia (Greek ισχαιμία, isch- is restriction, hema or haema is blood) is a restriction in blood supply, generally due to factors in the blood vessels, with resultant damage or dysfunction of tissue. ...
Treatment of aneurysms Historically, the treatment of arterial aneurysms has been surgical intervention, or watchful waiting in combination with control of blood pressure. Recently, endovascular or minimally invasive techniques have been developed for many types of aneurysms. A sphygmomanometer, a device used for measuring blood pressure. ...
Treatment of brain aneurysms Previously, a relatively complex surgical intervention (i.e. invasive surgery) was required in order to eliminate the potential risk of a brain aneurysm. In this operation, called clipping, a craniotomy was performed, and afterwards a titanium clip was affixed around the aneurysm neck. This operation became the standard of care for the treatment of cerebral aneurysms as microneurosurgical techniques were refined in the 1980s and 1990s. In the mid to late 1990s a newer method of aneurysm treatment was developed which allowed treatment without open surgery. Coil embolization of cerebral aneurysms involves the insertion of a catheter through the groin with a small microcatheter navigated to the aneurysm itself through the cerebral arteries. Coils (known as GDCs) are then deployed into the aneurysm filling it from within and thus preventing blood from entering the aneurysm itself. The term invasive in Medicine has two meanings: A medical procedure which penetrates or breaks the skin or a body cavity, i. ...
Clipping is a surgical procedure performed to treat an aneurysm. ...
A craniotomy is a surgical operation in which part of the skull (part of the cranium) is removed in order to access the brain. ...
A non-surgical, minimally-invasive procedure involving selective occlusion of blood vessels by purposefully introducing emboli to treat such conditions as aneurysms, epistaxis, and uterine fibroids. ...
Catheter disassembled In medicine, a catheter is a tube that can be inserted into a body cavity duct or vessel. ...
A Guglielmi Detachable Coil, or GDC, is a platinum coil commonly used in intracranial non-invasive surgery, for the occlusion of brain aneurysms. ...
Controversy has surrounded the decision making regarding the indications for each of these treatments. Early outcome data appears to favor coil embolization. However, longer term outcomes may favor clipping for aneurysms in certain locations. Two recent studies seem to reflect particularly high risk of surgery in patients over 65 years of age and also suggest that early risks are higher in surgically treated patients. Ultimately, the decision to treat with surgery versus coil embolization should be made by a team or individual with experience with both options. Younger patients with easily accessible aneurysms likely derive a higher benefit from surgery while older patients with less accessible lesions likely benefit more from coil embolization. These generalizations are difficult to apply to every case, which is reflected in the wide variance internationally in the use of coil embolization versus open clipping. Decision making is the cognitive process of selecting a course of action from among multiple alternatives. ...
Not every type of aneurysm can be treated with the described method. For example, certain wide-necked and inaccessible aneurysms currently still require surgical intervention, even though new methods (that use a type of stent) are already being studied and tested. Surgery is also usually required for venous aneurysms as introducing foreign material in the low flow veins can produce a high risk blood clotting environment. In medicine, a stent is an expandable wire mesh tube that is inserted into a hollow structure of the body to keep it open. ...
Coagulation is the thickening or congealing of any liquid into solid clots. ...
Treatment of peripheral aneurysms For aortic aneurysms or aneurysms that happen in the vessels that supply blood to the arms, legs, and head (the peripheral vessels), surgery involves replacing the weakened section of the vessel with an artificial tube, called a graft. More recently, covered metallic stent grafts can be inserted through the arteries of the leg and deployed across the aneurysm.
See also An aortic aneurysm is a general term for any swelling (dilatation or aneurysm) of the aorta, usually representing an underlying weakness in the wall of the aorta at that location. ...
Aortic dissection is a tear in the wall of the aorta (the largest artery of the body). ...
A cerebral or brain aneurysm is a cerebrovascular disorder in which weakness in the wall of a cerebral artery or vein causes a localized dilation or ballooning of the blood vessel. ...
Rasmussens aneurysm is a pulmonary artery aneurysm adjacent or within a tuberculous cavity. ...
Aneurysm of the aortic sinus, also known as the sinus of Valsalva. ...
References
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