Vascular murmur

Introduction Normal blood vessels generally do not produce murmurs, and vascular noise produces the same as heart murmurs, depending on the vortex field. When the blood flows in the blood vessels, the blood flow is accelerated or the blood flow is narrowed to a wider area, or the blood flow through the abnormal passage causes the blood flow to vortex and cause the blood vessel wall to vibrate.

Cause

Causes of vascular murmur

Healthy people have no cardiovascular sound in their abdomen. When the left lobe liver cancer compresses the abdominal aorta, a squeaky noise can be heard in the lumps; when the renal artery is narrow, a squeaky noise can be heard in the corresponding part of the umbilical cord and its left and right, accompanied by an increase in blood pressure; Aneurysm can hear systolic murmur in the pulsatile mass; when the abdominal aortic stenosis, systolic murmur can be heard in the corresponding part, accompanied by lower limb blood pressure lower than upper limb blood pressure, and severe back artery pulsation can not be touched. In patients with cirrhotic portal hypertension, the abdominal wall veins are dilated and curved due to collateral circulation. Sometimes, a "bee camp" sound similar to a bee-like spread can be heard near the umbilicus or under the xiphoid process, which is caused by eddy currents in the vein. This sound can be enhanced when the spleen is pressed, and the sound disappears when the blood flow is blocked by pressing on the abdominal wall by hand. The generation of this sound is caused by the change of the vessel diameter and internal pressure when the umbilical vein of the portal vein is recirculated into the superficial vein of the abdominal wall. In addition, more than 5 months of pregnancy, fetal heart sounds can be heard left or right under the umbilicus of pregnant women.

an examination

Related inspection

Arterial auscultation arteriovenous fistula positioning test Gehad sign pressure test pulse

Vascular murmur check

Arterial murmurs are often found in the middle or abdomen. Systolic vascular murmurs (jet murmurs) in the middle abdomen often suggest abdominal aortic aneurysms or abdominal aortic stenosis. The former can touch the pulsating mass in the part; the latter is weakened, the lower limb blood pressure is lower than the upper limb, and the severe one cannot touch the dorsal artery of the foot. Such as systolic vascular murmur in the left and right upper abdomen, often suggesting renal artery stenosis, can be seen in young hypertensive patients. If the noise is on both sides of the lower abdomen, radial artery stenosis should be considered. When the left lobe liver cancer compresses the hepatic artery or the abdominal aorta, a squeaky noise can be heard at the mass of the mass or a slight continuous murmur can be heard at the tumor site. Venous murmurs are continuous snoring sounds with no systolic and diastolic properties. Often appear in the umbilical or upper abdomen, especially when the abdominal varices are severe, often suggesting portal hypertension with collateral circulation.

Differential diagnosis

Symptom identification of vascular murmur

(a) benign head murmur: is a slight continuous vascular murmur located in any part of the head above the head can be heard often bilaterally more common in children under 10 years of age unless otherwise clinically considered to be physiological Noise.

(2) Eyeball murmur: Auscultation on one or both sides of the eyeball and vascular murmurs appearing in the systolic phase of the ventricle are ocular murmurs. This murmur occurs mostly in the contralateral carotid artery obstruction, and its early performance is often in addition to eyeball murmur. Feeling abnormal and visual abnormalities.

(C) the jugular vein camping sound: also known as the jugular vein "" sound jugular vein "meeting" sound gyro sound moth sound with a stethoscope on the patient's sides of the clavicle up or down the clavicle upper fossa auscultation can hear a soft tone Lower to moderate continuous murmurs during inhalation or diastolic enhancement.

(4) Upper clastic artery murmur: also known as cervical murmur.

(5) Lower subclavian artery murmur: more common in healthy children and anemia patients appear or aggravate after exercise.

(6) Thyroid murmur: patients with hyperthyroidism due to increased blood vessels, increased blood flow, increased in the upper and lower leaves of the upper and lower leaves can be heard and low-key continuous vein '" " or systolic arterial murmur and can touch tremor.

(7) pleural adhesion murmur: also known as vascular murmur in pleural adhesions.

(8) Breast murmur: The patient takes a sitting position or a supine position with a stethoscope on both sides of the sternum. Auscultation and tone low-sounding soft systolic or continuous murmur is breast murmur.

(9) Left upper abdomen vascular murmur: the patient takes a supine position with a stethoscope in his left upper abdomen for auscultation and a short systolic murmur is that this murmur is more limited than the general limitation. This murmur is due to pancreatic body and tail cancer. The branching of the celiac artery, especially the compression of the splenic artery, is considered to be an important characteristic of the early stage of pancreatic body and tail cancer. It can also be seen in spleen aneurysm by angiography.

(10) Hepatic arterial murmur: in the upper abdomen or the right side of the swollen liver, the squeezing period of the squeaky squeaky noise is related to the extent of the liver enlargement. The larger the liver, the wider the range of conduction, sometimes on the right side of the umbilical spleen. The back can be heard farther from the liver, the weaker the noise, the murmur has a certain diagnostic value for primary liver cancer, but it can also be seen in other liver diseases. The murmur is caused by liver cancer compression of the hepatic artery or abdominal aorta. The disease of the blood vessel or the hepatic artery itself of the cancer itself.

Arterial murmurs are often found in the middle or abdomen. Systolic vascular murmurs (jet murmurs) in the middle abdomen often suggest abdominal aortic aneurysms or abdominal aortic stenosis. The former can touch the pulsating mass in the part; the latter is weakened, the lower limb blood pressure is lower than the upper limb, and the severe one cannot touch the dorsal artery of the foot. Such as systolic vascular murmur in the left and right upper abdomen, often suggesting renal artery stenosis, can be seen in young hypertensive patients. If the noise is on both sides of the lower abdomen, radial artery stenosis should be considered. When the left lobe liver cancer compresses the hepatic artery or the abdominal aorta, a squeaky noise can be heard at the mass of the mass or a slight continuous murmur can be heard at the tumor site. Venous murmurs are continuous snoring sounds with no systolic and diastolic properties. Often appear in the umbilical or upper abdomen, especially when the abdominal varices are severe, often suggesting portal hypertension with collateral circulation.

The material in this site is intended to be of general informational use and is not intended to constitute medical advice, probable diagnosis, or recommended treatments.