What's the difference between clamping and tourniquet?
Clamping
Definition:
(p. pr. & vb. n.) of Clamp
Example Sentences:
(1) The percentage of eggs clamped at values more negative than -65 mV, which responded at insemination by developing an If, decreased and dropped to 0 at -80 mV.
(2) In voltage-clamp experiments the ion current flowing through the channels was homogeneous indicating a defined conformation and a uniform size.
(3) Further analysis of these changes according to smoking history, age, preoperative weight, dissection of IMA, and aortic cross-clamp time showed that only IMA dissection affected the postextubation changes in peak expiratory flow rate (p less than 0.0001), whereas the decreases in functional residual capacity and expiratory reserve volume at discharge were affected by IMA dissection (p less than 0.05) and age (p = 0.01).
(4) With a series of 117 aortic valve replacements, the authors have examined the results in relation to the method of protecting the myocardium while the aorta is clamped off.
(5) We have previously shown that, with moderate hydration (2.5 L) of the recipient, together with rapid infusion of 250 ml of mannitol 20% just before clamp removal, the incidence of ARF decreased to below 10%.
(6) Detailed voltage-clamp measurements revealed that ABA-activated ion currents could be reversed by depolarizations more positive than -10 mV.
(7) Multiple blood samples were obtained over one dosing interval following oral CyA administration in eight liver transplant patients before and after T-tube clamping.
(8) Furthermore, blood pressure, free fatty acid concentration, liver enzymes, and urate concentrations were significantly correlated with glucose infusion rate at the clamp test.
(9) Using the rate coefficient values found by SCoPfit, we simulated a voltage-clamp experiment with both models running under their Na(+)-Na+ exchange mode, and we computed the transient currents generated following voltage steps in both depolarizing and hyperpolarizing directions from a basic potential of -40 mV.
(10) The effects of alanine, glucose and tolbutamide on insulin-secreting cells (RINm5F) have been investigated using patch-clamp and single cell intracellular Ca2+ measurements.
(11) In the whole-cell current-clamp method, the cell membrane was depolarized by endothelin and then repolarized by nicorandil.
(12) The effect of physiologic elevations of plasma hydroxybutyrate induced by the infusion of sodium D,L-beta-hydroxybutyrate (15 mumol X kg-1 X min-1) on carbohydrate metabolism was examined with the euglycemic insulin clamp technique in nine healthy volunteers.
(13) The initial defect can be directly measured by glucose clamp and other sophisticated techniques; the clinical syndrome may be derived from a network of related variables known to be associated with reduced insulin action.
(14) We have investigated insulin responsiveness in relation to insulin sensitivity during sequential hyperglycemic clamping in low insulin responders (LIR), high insulin responders (HIR) and in women with a history of gestational diabetes (GD).
(15) In anesthetized cats, the enhancement of sympathetic activity and increase of the blood pressure in exclusion of afferents (section of vagosympathetic trunks and clamping of common carotid arteries) as well as the disappearance of the activity in enhanced afferentation, were shown to be transient and to disappear within a few minutes-scores of minutes in spite of the going on deafferentation or enhancement of afferentation.
(16) It will not be so low as to put off candidates from outside the corporation but will be substantially less than Thompson's £671,000 annual remuneration – in line with Patten's desire to clamp down on BBC executive pay, which he said had become a "toxic issue".
(17) In a direct test of the hypothesis that the M2 coat protein of influenza A can function as a proton translocator, we incorporated a synthetic peptide containing its putative transmembrane domain into voltage-clamped planar lipid bilayers.
(18) The aortic cross-clamp time ranged from 51 minutes to 94 minutes (mean 71 minutes).
(19) The main objective of these experiments was to develop and characterize a new experimental model of venous thrombosis, and determine whether a combination of vascular wall damage (crushing with hemostat clamps) and prolonged stasis produced more reproducible clots than prolonged stasis per se.
(20) After properly fixing the vas deferens with a ring clamp, the surgeon pierces the scrotal skin, vas sheath, and vas deferens in the midline with a curved dissecting clamp held at a 45 degree angle from horizontal.
Tourniquet
Definition:
(n.) An instrument for arresting hemorrhage. It consists essentially of a pad or compress upon which pressure is made by a band which is tightened by a screw or other means.
Example Sentences:
(1) Anesthetized sheep (n = 6) previously prepared with a lung lymph fistula underwent 2 hr of tourniquet ischemia of both lower limbs.
(2) Cooling of the necrotic limb with the application of a tourniquet and general nonoperative treatment were conducted in preparation for amputation.
(3) The data suggest that slow injection with the high tourniquet inflation pressure is better, although the differences in leakage with an intact tourniquet were not statistically significant.
(4) The influence of preanalytical factors such as food intake, posture, use of tourniquet and freezing and storing samples is great and necessitates standardisation of specimen collection.
(5) Serum myoglobin levels have been found to be elevated for a few hours after removal of a tourniquet.
(6) Muscle cells in these areas appeared structurally well preserved even 20 hr after release of the tourniquet and no cytoplasmic calcium accumulation could be demonstrated in muscle cells by staining with ARS.
(7) Ischaemic nerve injury has been suggested as the mechanism for post-tourniquet limb paralysis.
(8) A case is presented in which significant decrease in cerebral perfusion pressure occurred consequent upon use of a lower limb tourniquet.
(9) And the tourniquet test differentiates the presence of deep from superficial vein insufficiency.
(10) The patients were classified into one of four groups based on whether a tourniquet was applied during the procedure and whether the bone specimens were irrigated.
(11) A common although infrequently recognized complication associated with the use of a pneumatic tourniquet is profuse bleeding from the wound after deflation of the tourniquet.
(12) The factors that do not seem to have much relevancy to DVT were advanced age, orthopedic disease, one- or two-staged bilateral TKA, venous anatomic variations, number of venous valves, coagulation assay data, hypertension, tourniquet time, choice of cementless or cemented TKA, severity or duration of operation, amount of blood loss, and amount of blood transfused.
(13) The duration of the tourniquet blockade was 60, 120 and 180 minutes.
(14) After 6-minute tourniquet application the values for red cells, haemoglobin, packed cell volume, total protein, albumen, gamma-glutamyl transferase, alkaline phosphatase, lactate dehydrogenase, creatinekinase, bilirubin, cholesterol, total glycerol and calcium increased by an average of 4-9%.
(15) Tourniquet shock was modeled under ether Raush anesthesia by applying 8 turns of a rubber tourniquet to the hind limbs for 6 hours.
(16) These results suggest that endogenous histamine is not a lethal factor in burn and tourniquet trauma, but rather it appears to have a compensatory, beneficial effect.
(17) Peak concentrations can be minimized with shorter tourniquet inflation times and with longer intervals between injection and tourniquet release.
(18) This article examines the most common complications, including instrument breakage and nervous lesions due to the tourniquet or positioning on the surgical table, discusses the various intraarticular media, and warns against the use of gas media under certain circumstances.
(19) Intraoperative muscle temperature recordings indicated that the iced limbs were an average of 12.9 degrees cooler than noniced limbs before tourniquet inflation.
(20) in the irreversible ischemia group (animals with more than 9 hours of tourniquet).