background: to evaluate the efficacy of color doppler ultrasound (cdus) in differentiating benign and malignant cervical lymph nodes by detecting differences in blood flow patterns. materials and methods: in this cross‑sectional prospective study, 25 untreated patients with clinical evidence of cervical lymphadenopathy were evaluated. cdus was performed for 80 cervical lymph nodes. the gray sca...

We measured thoracic duct lymph flow rate versus outflow pressure in 7 chronically catheterized adult sheep and in 6 newborn lambs and compared our results to data previously obtained from 10 fetal sheep. In fetal sheep the thoracic duct lymph flow rate was 34.5 +/- 17.2 ml/hr or 11.7 +/- 6.0 ml/kg/hr. Fetal thoracic duct lymph flow deviated from baseline between 8 and 12 torr outflow pressure ...

The magnitude of peritoneal lymph flow is an issue of great controversy in peritoneal dialysis (PD) research. Because no single lymphatic duct drains the entire peritoneal cavity, peritoneal lymph flow is indirectly measured as lymphatic removal of intraperitoneal macromolecular tracer. In rats, the peritoneal clearance (K) of such a tracer is 5 times the approximately 8 microL/min determined f...

The mechanisms of pressure and flow generation in the initial lymphatic network remain undefined in many details. Active pump mechanisms by lymph smooth muscle contraction have been demonstrated in collecting lymph ducts while passive mechanisms by periodic lymph compression in noncontractile initial lymphatics have received relative little attention. The aim of this study was to examine lymph ...

The long-term responses of lymph flow, lymph protein transport, and the permeability-surface area (PS) product to hyperproteinemia have been studied in conscious dogs. Plasma protein concentration (PPC) was increased by daily intravenous infusion of previously collected autologous plasma for 9 days. Lymph flow was determined by collecting lymph chronically from a lymphatic afferent to the popli...

Manning, R. Davis, Jr. Chronic lymph flow responses to hyperproteinemia. Am. J. Physiol. 275 (Regulatory Integrative Comp. Physiol. 44): R135–R140, 1998.—The long-term responses of lymph flow, lymph protein transport, and the permeability-surface area (PS) product to hyperproteinemia have been studied in conscious dogs. Plasma protein concentration (PPC) was increased by daily intravenous infus...

1. Simultaneous thoracic duct and hepatic lymph flows were measured in 29 mongrel dogs before and after the intravenous administration of mannitol, ethacrynic acid, frusemide and chlorothiazide in separate experiments. 2. Thoracic duct lymph flow increased significantly after each diuretic agent was administered. 3. Hepatic lymph flow increased only after ethacrynic acid and mannitol administra...