Propofol decreases intraocular pressure and therefore has lot of propofol effects A single low dose bolus of propofol used for sedation before cataract surgery caused a moderate reduction in intraocular pressure with minimal side effects. Propofol Effect on Coagulation and Immunity System Some of the propofol effects are discussed here. Propofol does not cause significant coagulation […]
Two classes of drugs exist GP IIb/IIIa inhibitors that inhibit these platelet effects at the level of the glycoprotein (GP) IIb/IIIa receptor on the platelet surface membrane. The first group are the thienopyridines (clopidogrel and ticlopidine). Current treatments for acute coronary syndromes including unstable angina and non-ST-elevation myocardial infarction now include agents aimed at inhibiting platelet activation,
There are various ways of describing what is opioid. The common feature of all the drugs belonging to the group of these drugs is a phenanthrene ring with side chain and additional rings that might be added to the central ring itself or to the side chains. 1. Naturally occurring: morphine, codeine, kheline, noscapine, and thebaine. 2.
Propofol is a global central nervous system depressant. Propofol general anesthesia decreases cerebral metabolic rate for oxygen (CMRO2), cerebral blood flow (CBF), and intracranial pressure (ICP). Decrease in CBF is more than sevoflurane. Propofol is a cerebral vasoconstrictor and thus lowers ICP. Propofol decreases ICP greater than isoflurane and sevoflurane while cerebral perfusion pressure is
Ketamine analgesia produces intense analgesia at sub anesthetic doses and prompt induction of anesthesia when administered IV at higher doses. Ketamine analgesia has an analgesic action at many sites both centrally and peripherally. These actions are mediated via multiple receptor subtypes, including opioid, NMDA, kainate, and GABAA receptors. Ketamine also inhibits serotonin and dopamine reuptake.
For the Alveolar partial pressure of oxygen we see, Increasing the inspired concentration (F1) of an anesthetic agent increases the alveolar concentration (FA). A 75% nitrous oxide (N20) in oxygen mixture increases the FI/FA ratio of N2O. The amount of nitrous oxide absorbed will be greater than the nitrogen given out in the alveoli, hence
Etomidate induces loss of consciousness rapidly (5—15 seconds) and recovery occurs in 5 to 15 minutes. The elimination Etomidate half life is 4.6 +1- 2.6 hours and total apparent volume of distribution, 4.5 +/- 2.2 L/kg. The volume of distribution of etomidate half life is large, suggesting considerable tissue uptake. The plasma clearance is 879
Nikethamide is a drug used for stimulating the brain. Its chemical name is nicotinic acid diethylamide. Nikethamide is a cerebral stimulant and a good analeptic. It stimulates respiration due to an effect on respiratory center and not through the chemoreceptors of the carotid and aortic bodies. It has a vasoconstrictor effect on the peripheral circulation. It has
Following are the therapeutic uses of opioid analgesics : 1. Pain relief: By any and all the possible routes, these drugs have been given to relieve the pain—acute, surgical, non-surgical, visceral, somatic, chronic, and oncogenic, non-oncogenic. 2. Morphine is drug of choice in IHD, myocardial infarction, obstetric analgesia. 3. Dyspnoea: Especially due to left ventricular
To know about Ketamine mechanism of action we need to know that Ketamine is a non-competitive antagonist to the phencyclidine site of N-methyl-d-aspartate (NMDA) receptor for glutamate, though Ketamine mechanism of action has effects that are mediated by interaction with many others receptors. N-Methyl-D-Aspartate Receptor Antagonism : NMDA receptors are ligand-gated ion channels that are
