Biomaterial Database

Reverse ventilation--perfusion mismatch. 1984

J C Palmaz, and C A Barnett, and S B Reich, and P E Krumpe, and P A Farrer

Patients having lobar airway obstruction or consolidation usually have decreases of both ventilation and perfusion on lung scans. We report three patients in whom hypoxic vasoconstriction was apparently incomplete, resulting in a "reversed" ventilation-perfusion mismatch. Perfusion of the hypoxic lobe on the radionuclide scan was associated with metabolic alkalosis, pulmonary venous and pulmonary arterial hypertension in these patients.

UI	MeSH Term	Description	Entries
D008173	Lung Diseases, Obstructive	Any disorder marked by obstruction of conducting airways of the lung. AIRWAY OBSTRUCTION may be acute, chronic, intermittent, or persistent.	Obstructive Lung Diseases,Obstructive Pulmonary Diseases,Lung Disease, Obstructive,Obstructive Lung Disease,Obstructive Pulmonary Disease,Pulmonary Disease, Obstructive,Pulmonary Diseases, Obstructive
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D011659	Pulmonary Gas Exchange	The exchange of OXYGEN and CARBON DIOXIDE between alveolar air and pulmonary capillary blood that occurs across the BLOOD-AIR BARRIER.	Exchange, Pulmonary Gas,Gas Exchange, Pulmonary
D011877	Radionuclide Imaging	The production of an image obtained by cameras that detect the radioactive emissions of an injected radionuclide as it has distributed differentially throughout tissues in the body. The image obtained from a moving detector is called a scan, while the image obtained from a stationary camera device is called a scintiphotograph.	Gamma Camera Imaging,Radioisotope Scanning,Scanning, Radioisotope,Scintigraphy,Scintiphotography,Imaging, Gamma Camera,Imaging, Radionuclide
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012709	Serum Albumin	A major protein in the BLOOD. It is important in maintaining the colloidal osmotic pressure and transporting large organic molecules.	Plasma Albumin,Albumin, Serum
D013667	Technetium	The first artificially produced element and a radioactive fission product of URANIUM. Technetium has the atomic symbol Tc, and atomic number 43. All technetium isotopes are radioactive. Technetium 99m (m	Technetium 99m,99m, Technetium
D013668	Technetium Tc 99m Aggregated Albumin	A gamma-emitting radionuclide imaging agent used for the diagnosis of diseases in many tissues, particularly in cardiovascular and cerebral circulation.	Tc 99m-Albumin,Tc 99m-Albumin Colloid,99m-Tc-HSA,99mTc-Albures,99mTc-HSA,99mTc-Human Serum Albumin,Tc-99m-HAM,Tc-99m-MAA,Tc-99m-Microalbumin,Tc-HAMM,Tc99m-Albumin,Technetium-99m Albumin Colloid,99mTc Albures,99mTc Human Serum Albumin,99mTcAlbures,Albumin Colloid, Technetium-99m,Albumin, 99mTc-Human Serum,Colloid, Tc 99m-Albumin,Colloid, Technetium-99m Albumin,Serum Albumin, 99mTc-Human,Tc 99m Albumin,Tc 99m Albumin Colloid,Tc 99m HAM,Tc 99m MAA,Tc 99m Microalbumin,Tc HAMM,Tc99m Albumin,Technetium 99m Albumin Colloid