Biomaterial Database

Inferior vena cava compression in the pregnant dog. 1978

M M Abitbol

Attempts were made to produce inferior vena cava (IVC) compression in 14 pregnant and 12 nonpregnant bitches. Ligation of the iliac veins, the IVC below the renal veins, or the left renal vein separately produced minimal hemodynamic disturbances. Only ligation of the two renal veins or of the IVC above the renal veins produced a moderate drop in blood pressure and blood flow. Shock and bradycardia, characteristic of the supine hypotension syndrome (SHS) as observed in human subjects, were never observed. Satisfactory collateral circulation was demonstrated radiologically. Since human SHS was not reproduced in the pregnant bitch by compression of the IVC alone, one may conclude that the SHS is not solely caused by the compression.

UI	MeSH Term	Description	Entries
D007084	Iliac Vein	A vein on either side of the body which is formed by the union of the external and internal iliac veins and passes upward to join with its fellow of the opposite side to form the inferior vena cava.	Deep Circumflex Iliac Vein,Iliac Veins,Vein, Iliac,Veins, Iliac
D008026	Ligation	Application of a ligature to tie a vessel or strangulate a part.	Ligature,Ligations,Ligatures
D011247	Pregnancy	The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.	Gestation,Pregnancies
D011249	Pregnancy Complications, Cardiovascular	The co-occurrence of pregnancy and a cardiovascular disease. The disease may precede or follow FERTILIZATION and it may or may not have a deleterious effect on the pregnant woman or FETUS.	Cardiovascular Pregnancy Complications,Complications, Cardiovascular Pregnancy,Pregnancy, Cardiovascular Complications,Cardiovascular Pregnancy Complication,Complication, Cardiovascular Pregnancy,Pregnancies, Cardiovascular Complications,Pregnancy Complication, Cardiovascular
D012082	Renal Veins	Short thick veins which return blood from the kidneys to the vena cava.	Renal Vein,Vein, Renal,Veins, Renal
D001794	Blood Pressure	PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.	Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D003097	Collateral Circulation	Maintenance of blood flow to an organ despite obstruction of a principal vessel. Blood flow is maintained through small vessels.	Blood Circulation, Collateral,Circulation, Collateral,Collateral Blood Circulation,Collateral Circulation, Blood,Blood Collateral Circulation,Circulation, Blood Collateral,Circulation, Collateral Blood,Collateral Blood Circulations,Collateral Circulations,Collateral Circulations, Blood
D004285	Dogs	The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)	Canis familiaris,Dog
D005260	Female		Females
D006339	Heart Rate	The number of times the HEART VENTRICLES contract per unit of time, usually per minute.	Cardiac Rate,Chronotropism, Cardiac,Heart Rate Control,Heartbeat,Pulse Rate,Cardiac Chronotropy,Cardiac Chronotropism,Cardiac Rates,Chronotropy, Cardiac,Control, Heart Rate,Heart Rates,Heartbeats,Pulse Rates,Rate Control, Heart,Rate, Cardiac,Rate, Heart,Rate, Pulse