| :: cocaine vasoconstriction |
thetic or vasoconstrictive effects of cocaine and those of a lidocaine- oxymetazoline (lido/oxy) mixture (5). The combination of tetracaine and oxymetazoline
Results.—Cocaine-induced cerebral vasoconstriction in a dose-related fashion. ( P=.03), with angiograms indicative of vasoconstriction found in 5 of 8 and 3 of 9
sympathomimeticaction of cocaine can cause vasoconstriction even in settingswhere coronary flow is already compromised. These combined effects to augment
First, Branch and Knuepfer (5) had shown that cocaine causes vasoconstriction through an α-1 receptor-mediated process resulting from the
Vasoconstrictors are also commonly abused drugs, such as cocaine and nicotine . However, their vasoconstricting effect is coincidental to their
vasoconstriction.6 Cocaine not only causes spasm of the large coronary arteries but is toxic to cardiac muscle. Excessive β- adrenergic stimulation from cocaine
When snorted into the nose, cocaine produces vasoconstriction. In fact, it is occasionally used as a local anesthetic without the need for an
Europe and the use/misuse of cocaine … 1880's Epinephrine… vasoconstrictor (adrenergic drug that mimics the sympathetic ANS). NaCl… to make solution
Evidence for a Serotonin-Mediated Effect of Cocaine Causing Vasoconstriction and Herniated Umbilici in Chicken Embryos - Experimental evidence in the rat
Cocaine potentiates thrombus formation. It causes coronary vasoconstriction by simultaneous stimulation of alpha- adrenergic receptors
The pathophysiology of cocaine-induced midline destructive lesions is multifactorial and includes local ischemia secondary to vasoconstriction vasoconstriction
Exception: cocaine (inhibits noradrenaline re-uptake »»» increased sympathetic activity with vasoconstriction, increased arterial pressure, tachycardia )
Studies also indicate that nitroglycerin alleviates cocaine-induced vasoconstriction and relieves symptomatic chest pain. 37-39
Vasoconstrictor drug interactions in- volving tricyclic antidepressants, nonselective β- adrenergic blocking drugs, certain general anesthet- ics and cocaine are
Cocaine, a stimulant derived from the coca plant, is a widely used illicit drug in the United States. When snorted into the nose, cocaine produces vasoconstriction
Results: Cocaine did not alter CBV in follicular phase women, but reduced luteal phase CBV by 10%, indicative of vasoconstriction (analysis of variance
In contrast, neither histamine nor cocaine produced vasoconstriction in the angioplasty segment. Thus, a transient loss of vasoconstriction occurred at the
In isolated rat carotid arteries cocaine-induced vasoconstriction was completely blocked by prazosin, phentolamine, and 6-hydroxydopamine,
Alleviation of cocaine-induced coronary vasoconstriction with intravenous verapamil. (PMID:8141094). Abstract; Citations List of citations in UKPMC which this
Gave intranasal cocaine (2 mg/kg) to patients undergoing routine cardiac catheterization. Lange et al. NEJM, 1989. Coronary Vasoconstriction. Variable
coronary blood supply (via coronary vasoconstriction, accelerated atherosclerosis, and thrombosis), even small amounts of cocaine can trigger myocardial
-adrenergic-mediated (uterine) arterial vasoconstriction. In this study pregnant Swiss Webster (SW) mice were injected with cocaine HCl (20 or
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Cerebral vasoconstriction, cerebrovascular disease, and hemorrhagic and ischemic stroke are increased in cocaine users, even in patients
OBJECTIVE: To determine whether low-dose cocaine administration induces cerebral vasoconstriction in healthy cocaine users. DESIGN:
These effects may also be found in cocaine-exposed fetus. When women take cocaine, vasoconstriction of the maternal uterine blood vessels
Cocaine induces vasoconstriction of epicardial CA in patients with or without coronary artery disease (CAD), combined with an enhanced
The majority oft his cocaine is used intranasally prior to or during surgical procedures to provide mucosal vasoconstriction and analgesia. The techniques of
These data suggest that while cocaine's vasoconstrictor action may be significantly mediated through adrenergic transmission, BE may act through a mechanism
Reflex blockade with hexamethonium eliminated cocaine-induced vasoconstriction, but the magnitude and brevity of cardiac depression were unaltered.
The α-adrenergic stimulation can lead to coronary vasoconstriction. Cocaine increases production of endothelin, a powerful vasoconstrictor,
Publication Information. Coronary-artery vasoconstriction induced by cocaine, cigarette smoking, or both. N Engl J Med 330(7):454-9, 1994. View this article at:
Although it has been found experimentally to reverse the coronary vasoconstriction and myocardial ischemia induced by cocaine,4 it has not
Cocaine sensitises the heart to catecholamines and thereby potentiates the effects of hypertension, coronary vasoconstriction and bronchoconstriction.
BioInfoBank Library :: Cocaine-induced cerebral vasoconstriction differs as a function of sex and menstrual cycle phase. Gender differences in self-reported
Cerebral cortical abnormalities seen in a non-human primate model of prenatal cocaine exposure are not related to vasoconstriction. Auteur(s) / Author(s)
purpose: Although labetalol is sometimes given to patients with cocaine- associated chest pain, its influence on cocaine-induced coronary vasoconstriction is
Traditional care of these patients includes a stepwise process initially using topical anesthetics and vasoconstrictors such as 4% cocaine alone or lidocaine plus
Influence of labetalol on cocaine-induced coronary vasoconstriction in humans. - Johns Hopkins University (JHU). SciVal Experts.
Our results confirm a marked vasoconstrictor effect of cocaine on the coronary arterial circulation, predominantly distal to the epicardial coronary arteries, but
Cocaine alone did not result in any change in resting tension of the rings. When ETH was added to the bath, C caused vasoconstriction, the
Maternal cocaine exposure has been associated with uterine vasoconstriction and decreases in fetal oxygenation. The latter has been shown to stimulate
documenting cocaine-induced vasoconstriction of the thoracic aorta6 and coronary arteries.7-10. Cocaine has been shown to cause vasoconstriction of
or by cocaine. The vasoconstriction produced by isoprenaline in this preparation therefore appears to be due to a direct action on the a-adrenotropic receptors.
response and severe intractable peripheral vasoconstriction. Cocaine causes vasoconstriction in patients who are under- going general anesthesia, especially
Cocaine-induced coronary-artery vasoconstriction. Immediate angioplasty for acute myocardial infarction. Cardiovascular complications of cocaine use.
Potentiation of cocaine-induced coronary vasoconstriction by beta-adrenergic blockade Annals of Internal Medicine. 112(12):897-903, 1990
Vasoconstriction in Metoprolol Tartrate, Allopurinol, Captopril, Depression Cocaine Abuse Depression - Chronic Diet - Cholesterol Drug
The major disadvantages of this use are cocaine's intense vasoconstrictor activity and potential for cardiovascular toxicity. Cocaine has since
Original Article from The New England Journal of Medicine — Coronary-Artery Vasoconstriction Induced by Cocaine, Cigarette Smoking,
Local vasoconstriction in the oral or nasal mucosa slows down the absorption of cocaine and, therefore, produces lower plasma levels than IV administration of
Examples include amphetamines, antihistamines and Cocaine . Many are used in medicine to treat hypotension and as topical decongestants. Vasoconstrictors
Cocaine usage has a growing incidence worldwide. The most common route of administration is nasal that induces local vasoconstriction and irritation on the
Cocaine also causes vasoconstriction which slows it's passage into the main circulatory system; lignocaine has no vasoconstriction properties
Cocaine affects the cardiovascular system in a variety of ways, including hemodynamic alterations, coronary vasoconstriction, hypercoagulability, endothelial
terms topical, vasoconstrictor, sinus*, nasal, epinephrine/ adrenaline, oxymetazoline, xylometazoline, cocaine, phenyl- ephrine, and adenoid*. We also scanned
Cigarette smoking induces coronary-artery vasoconstriction through an alpha- adrenergic mechanism similar to that of cocaine.13 Most cocaine
Keywords: cocaine, embryo /fetus hypoxia, embryo /fetus toxicology, ethanol, neurotoxicology, vasoconstriction cytotoxicity, fetal alcohol syndrome, physiology,
Scholars Portal - Cocaine-induced coronary artery vasoconstriction.
Central Sympatholysis as a Novel Countermeasure for Cocaine-Induced Sympathetic Activation and Vasoconstriction in Humans. Dileep V.
Cocaine. Because cocaine is also a vasoconstrictor, it is theoretically possible that a rebound rhinitis could occur from intranasal "recreational use" (Schwartz et
At 90 minutes, all patients had recurrent vasoconstriction (1.9 +/- 1.4 mm, P less than 0.05) despite a further decrease in the blood cocaine concentration.
Transient time course of cocaine-induced cardiac depression versus sustained peripheral vasoconstriction. Liu CP, Tunin C, Kass DA. Department of Internal
Hyperthermia from cocaine use is likely due to a combination of increased heat generation and a decreased ability to dissipate heat, due to vasoconstriction of
Cocaine also potentiated the vasoconstriction caused by intra-arterially administered norepinephrine but attenuated the vasoconstriction induced by tyramine.
Migraineurs seem more susceptible to some of these effects of cocaine than are people without chronic headaches. Key words: Cocaine, vasoconstriction,
The suggestion that cocaine-induced cerebral vasoconstriction may mediate both catastrophic and subtle clinical sequelae is supported by the
Cholinergic modulation of the coronary vasoconstriction induced by cocaine in conscious dogs. RP Shannon, BS Stambler, K Komamura, T Ihara and SF Vatner
static agents during nasal surgery. Earlier cocaine was preferred for its surface anaesthetic property and unique vasoconstrictive effects. Drugs like epinephrine
Thank you for choosing to subscribe to the eTOC for Journal of Occupational and Environmental Medicine. Enter your Email address: Wolters Kluwer Health may
Cocaine causes hypertension, tachycardia, and vasoconstriction including locally in the coronary arteries. Cocaine is also known to cause thrombogenicity and
The common underlying pathophysiological mechanism is cocaine-induced arterial vasospasm or vasoconstriction leading to intestinal ischaemia with mucosal
Uses of Cocaine (# 1 below), Amphetamine and Amphetamine-like agents (2-4 below) 1. Cocaine has limited use as a local anesthesic and vasoconstrictor in
the limbic system produces cocaine's euphoric effects. (Ritchie and Green, 1985). Activation of the sympa- thetic nervous system results in vasoconstriction,
e Abstract—Cocaine is the most powerful central nervous stimulant found in nature. All forms of cocaine cause tachy- cardia and vasoconstriction. A smokable
Central sympatholysis as a novel countermeasure for cocaine-induced sympathetic activation and vasoconstriction in humans. Research Abstract Details
Simultaneously, cocaine promotes vasoconstriction of the coronary arteries and promotes thrombosis by activating platelets and increasing
ably at greater risk for an ischemic event after cocaine use than are cocaine users without coronary artery dis- ease. Cocaine-induced vasoconstriction of the
During pregnancy, cocaine causes vasoconstriction of the maternal uterine blood vessels. Oxygen and nutrients normally transferred to the fetus via these
It is possible that cocaine's vasoconstrictor effects could lead to muscle damage via an ischemiareperfusion injury leading to free radical formation and lipid
Much of the damage caused by cocaine results from a combination of this increased myocardial demand with the vasoconstrictive and pro-coagulant effects of
Researchers had suspected this for many years because they knew that cocaine could cause vasoconstriction, or narrowing of blood vessels, in the heart and
Except for isolated cases of documented coronary vasoconstriction in patients presenting with complications after cocaine use, this study is the first to document
Cerebral vasoconstriction induced by topically applied norepinephrine was enhanced by cocaine, norcocaine and cocaethylene, but not by the other three
Cocaine also increases concentration of catecholamines in placenta, which results with placental vasoconstriction and decreased placental perfusion. This can
The greater vasoconstrictive effect of cocaine in luteal-phase women may be attributable to the progesterone, which has been shown to increase cocaine's
The effect of cocaine on cardiac muscle and coronary vessels remains poorly understood. In acute cocaine exposure, the vasoconstrictive
Cocaine induces vasoconstriction of epicardial coronary arteries in patients with and without coronary artery disease, and this vasoconstriction is particularly
CONCLUSIONS: The digital cutaneous circulation is highly sensitive to vasoconstrictor effects of cocaine. Pulmonary blood volume tends to be preserved after
Cocaine toxicity not only induces vasoconstriction but may also precipitate diffuse endothelial injury as a result of malignant hypertension and,
could be used as a “chemical tourniquet” when added to a solution of cocaine by producing localized vasoconstriction to slow the rate of vascular uptake, and
Cocaine's reputation as a rare and expensive drug has catapulted it into it is a vasoconstrictor And inhibits excessive bleeding; is a local anesthetic; and, taken
Anesthesia, local1—Cocaine hydrochloride is indicated to provide local anesthesia and vasoconstriction of accessible mucous membranes,
In addition to this cocaine has some target binding to the site of the Kappa-opioid receptor as well. Cocaine also causes vasoconstriction, thus reducing bleeding
Enalaprilat on cocaine-induced vasoconstriction. Intra-arterial administration of Enalaprilat inhibited this vasoconstriction slightly but significantly in arteriole
Ischemic strokes and transient ischemic attacks (TIAs) after cocaine use are likely a result of cerebral vasoconstriction, hypertension, or thrombi/emboli.30
preterm labor, intrauterine growth retardation, and preg- nancy-induced hypertension [3]. The exact mechanism by which cocaine induces vasoconstriction at the
1) combining cocaine use with cigarette smoking has additive effects on coronary vasoconstriction while markedly increasing the metabolic requirement of the
The purpose of this study is to improve the scientific understanding of the cardiovascular actions of cocaine, in particular the ability of cocaine to
augments cocaine-induced coronary artery vasoconstriction. Design: Randomized cocaine-induced vasoconstriction is due to alpha-adren- ergic stimulation
The vascular effects of cocaine include arterial vasoconstriction, in situ thrombus formation, platelet aggregation, and accelerated atherosclerosis are the
Heat loss is inhibited by the intense vasoconstriction. Cocaine-induced hyperthermia may cause muscle cell destruction and myoglobinuria resulting in renal
Vasoconstriction caused by cocaine is enhanced by sodium salicylate: is inducible nitric oxide synthase mRNA related? Mendoza-Baumgart MI, Pravetoni M,
A list of free Flashcard sets with a 'cocaine' term meaning 'inhibits net (uptake 1) vasoconstriction, inc bp, hr potentiates many adrenergic agonists'. Use our
Crack cocaine causes 'ischemia' by vasoconstriction. When I did emergency medicine work and was faced with severe nose bleeds I used
Vasoconstriction caused by cocaine is enhanced by sodium salicylate: is inducible nitric oxide synthase mRNA related? Neuropsychopharmacology. 2004 Jul
Health - Cocaine's vasoconstriction Cocaine & Crack.
Topical nasal cocaine has been shown to cause tachycardia, hypertension and coronary artery vasoconstriction when applied at 2 mg kg-' per body weight [l].
Effect of cocaine on coronary artery dimensions in atherosclerotic coronary artery disease: enhanced vasoconstriction at sites of significant stenoses.
Topical vasoconstriction using four to 10 per cent cocaine is widely used for Key words: Cocaine; Vasoconstriction; Nose; Surgical Procedures, Operative
Topical local anaesthesia is generally recommended and cocaine is usually the drug of choice in view of its concurrent vasoconstrictor action. However, it is
Cocaine is a general vasoconstrictor; Studies show that increased endothelian-1 (in cocaine users) activates vasoconstriction stimuli and prolongs coronary
Cocaine is the only local anesthetic with vasoconstrictive properties. This is a result of its blockade of norepinephrine reuptake in the autonomic
Crack cocaine causing fatal vasoconstriction of the aorta. Williams J, Wasserberger J. Department of Emergency Medicine, Martin Luther King, Jr./ Charles R.
Smoking crack bypasses the vasoconstriction that results when cocaine is snorted; therefore, the effects are similar to taking cocaine
hemodynamic and coronary vasoconstrictor responseto cocaine. Conclusions. In conscious dogs, cocaine induces coronary vasoconstriction, which competes
Cocaine's vasoconstrictive properties prolong the rate of absorption and delay its peak effect when absorbed from mucosal surfaces.
urine plus blood samples should be analyzed for cocaine and its metabolites. Cocaine induces vasoconstriction of epicardial CA in patients with or without
sustained cocaine-induced vasoconstriction (25±27). Rectal involvement, seen in ®ve of our patients, is not a common feature of ischemic bowel disease. This
Cocaine is a known vasoconstrictor and has been linked with myocardial infarctions (1-6) and strokes (6-. 13). Repeated local vasoconstriction and subsequent
It may also block cocaine's adrenergically mediated vasoconstrictor effects, since the cocaine-induced release of catecholamines from the
Scholars Portal - Recurrent coronary vasoconstriction caused by intranasal cocaine: Possible role for metabolites.
Information about cocaine in Free online English dictionary. vaginal bleeding after injection of cocaine, placental vasoconstriction, spontaneous abortion,
Cocaine is a vasoconstrictor which means it decrease the blood supply to the nose. During the early post Rhinoplasty phase, this decreases the healing and if
Conclusions—The data suggest that cocaine increases the endothelin-1 release in vitro and in vivo. The cocaine-induced vasoconstriction/vasospasm may
Clinical InvestigationCocaine-Induced CerebralVasoconstriction Detected in HumansWith Magnetic Resonance AngiographyMarc J. Kaufman,
The α-adrenergic stimulation can lead to coronary vasoconstriction.1,3 Cocaine increases production of endothelin, a powerful vasoconstrictor,
Vasoconstriction is a narrowing of the blood vessels resulting from contracting Examples include amphetamines, antihistamines and cocaine.
Cocaine remains a valuable agent in the armamentarium of the rhinologist. Key words: Cocaine; Local Anaesthetic; Vasoconstriction; Nose; Surgical Procedures
We further explored the role of nitric oxide in cocaine-induced vasoconstriction in anesthetized rats, and in vitro by using isolated carotid artery
Cocaine abuse leads to significant mortality and morbidity via its vasoconstrictive properties. The circadian timing system modulates cardiovascular parameters
close i.a.) increased lipolysis following sympathetic nerve stimulation or close i.a. injection of noradrena- line. Cocaine also potentiated the vasoconstriction
We concluded that Nitrendipine is a powerful inhibitor of cocaine-induced vasoconstriction in the microcirculation. The small but significant
Nasoseptal destruction secondary to intranasal cocaine abuse is a result of cocaine's vasoconstrictive properties, and a decrease in the oxygen tension of
hypertensive crisis associated with cocaine use. . blockers, and that this “ unopposed alpha” activity mediates both coronary vasoconstriction and peripheral
Cocaine-induced vasoconstriction is mediated through the α-adrenergic receptors; β-adrenergic
Most prior studies have postulated that cocaine-induced coronary vasoconstriction limits myocardial oxygen delivery during times of increased myocardial
The in vitro vasoconstriction induced by cocaine was blocked by These results suggest that cocaine exerts its peripheral vasoconstriction at least in part by
Find everything about vasoconstriction on OS. sinus surgery, the soft-tissue is made to shrink using cocaine and adrenaline given via injections and swabs.
Beta-blockers potentiate cocaine-induced coronary vasoconstriction (potentiate alpha-adrenergic effect of cocaine); avoid concurrent use. CYP2D6 substrates:
Cocaine is the most powerful central nervous stimulant found in nature. All forms of cocaine cause tachycardia and vasoconstriction. A smokable, rapidly
In view of possible cocaine-induced vasospasm related antero-lateral STEMI, a potent vasodilator, resulting in profound vasoconstriction.16 Cocaine-related
Journal of the American College of Cardiology, Volume 18, Issue 2, Pages 581- 586, August 1991, Authors:Walter C. Brogan, MD, PhD; Richard A. Lange, MD,
Subsequent studies using MRI procedures found that cocaine had greater vasoconstrictive effects in men than in follicular-phase women. Moreover, the
"Only during their luteal phase did women experience a significant degree of vasoconstriction from cocaine," said Kaufman, assistant professor of psychiatry at
American Journal of Cardiology, Volume 79, Issue 4, Pages 492-493, 15 February 1997, Authors:Wanpen Vongpatanasin, MD; Richard A
Objective: To define the temporal characteristics of cocaine-induced coronary vasoconstriction in humans and to assess the relation between
Cocaine caused concentration-dependent alteration of response. At IO-~M, cocaine attenuated mean maximal norepinephrine-induced vasoconstriction
Examples include amphetamines, antihistamines and cocaine. Many are used in medicine to treat hypotension and as topical decongestants. Vasoconstrictors
Objective: To define the temporal characteristics of cocaine-induced coronary vasoconstriction in humans and to assess the relation between cocaine-induced
Occurs due to trauma, eclampsia, cocaine use, multiparity. Causes --Cocaine: vasoconstriction causes abruption, fetal growth retardation, fetal abnormalities.
Our prior data suggest that cocaine-induced vasoconstriction may (1) limit cocaine's entry into the brain and (2) cause damage to DA neurons through injury
Segmental vasoconstriction of cerebral arteries demonstrated by angiography with exposure to other drugs, such as cannabis and/or ecstasy/and or cocaine.3
In response to cocaine, the luminal areas of diseased and nondiseased segments decreased, but the magnitude of vasoconstriction was greater in the diseased
Tematicas.es - Cocaine-induced coronary-artery vasoconstriction.
These data suggest that DSC-MRI can detect cocaine- induced CBV reductions indicative of vasoconstriction, and that it may be useful for evaluating treatments
Cocaine is pyrogenic, augmenting heat production in stimulating muscular activity and causing vasoconstriction which decreases heat loss. Cocaine is known to
Studies have demonstrated that cocaine causes coronary vasoconstriction, but this has been unassociated with myo- cardial ischemia. Therefore, cocaine
increased heart rate, blood pressure and vasoconstriction.'° '. When the drug is used chronically, the mechanisms goveming cocaine-induced cardiovascular
-necrosis of the nasal septum (due to snorting cocaine- vasoconstriction leads to necrosis of nasal region) -bowel ischemia and gangrene (due
Cocaine is one of the most potent anesthetic and vasoconstrictor. These two characteristics make it an ideal medication for use during sinus surgery as well as
Cocaine produces coronary vasoconstriction of the epicardial coronaries that can be reversed by phentolamine, an alpha-adrenergic antagonist [17]
There are two schools of thought suggesting a wide role for cocaine as a general vasoconstrictor, and another suggesting a more specific role for cocaine on the
Cocaine-induced coronary arterial vasoconstriction is enhanced at sites of atherosclerotic narrowing. Delayed or recurrent vasoconstriction of the coronary
Cocaine. Cocaine is a potent vasoconstrictor and can produce tissue ischemia, especially if extravasated into the subcutaneous tissue. It does not regularly form
Contains details of Effect labetalol cocaine-induced coronary vasoconstriction humans.
RESULTS: Cocaine did not alter CBV in follicular phase women, but reduced luteal phase CBV by 10%, indicative of vasoconstriction (analysis of variance
In contrast, nitroglycerin and verapamil reverse cocaine-induced hypertension and coronary arterial vasoconstriction; therefore, they are the agents of choice in
cocaine administration induced dose-related cerebral vasoconstriction on magnetic resonance angiograms.These changes occurred at low cocaine doses and
Vasoconstriction Caused by Cocaine is Enhanced by Sodium Salicylate: Is Inducible Nitric Oxide Synthase mRNA Related? Mary Irene
Furthermore, small amounts of cocaine cause vasoconstriction of the coronary arteries, thereby limiting the myocardial oxygen supply even in the face of
Mechanistic theories point to cocaine and its sympathomimetic effects causing vasoconstriction with resultant cerebral ischemia. This hypothesis is supported by
Cocaine has also been used legally as an anesthetic. This means cocaine numbs the nerves to pain. Cocaine is a very powerful vasoconstrictor. Cocaine can
A preparation was devised in which the sympathetic vasoconstrictor response in the Cocaine, when infused i.a., potentiated the responses to both sympathetic
activity has been implicated as the cause of tachycardia and vasoconstriction [1,5 ]. The psychotropic effects of cocaine are attributed to blocking the presynaptic
ments were significantly more sensitive to benzoylecgonine than to cocaine and the other cocaine metabolites. Benzoylec- gonine-induced vasoconstriction
Comparison of Cocaine-Induced Vasoconstriction of Left and Right Coronary Arterial Systems. Wanpen Vongpatanasin, MDa, a, Richard A Lange, MDa, a,
For example, cocaine and methamphetamine abuse appear as multiple small ( nicotine is a powerful vasoconstrictor) and how vulnerable a particular brain is.
Psychostimulants: The Anphetamines and Cocaine use frequently brings about nasal septum necrosis and perforation, due to sustained vasoconstriction.
This leads to narrowing of the blood vessels, and cocaine is also known to cause blood clotting. In heavy users, vasoconstriction can be so intense it restricts
It causes vasoconstriction thus reducing bleeding during minor surgical procedure ENT. Cocaine is used as a surface local anesthesia, particularly in Ear , Nose
a concentrated form where there is a possibility of a potential pharmacological interaction (20). Interaction of vasoconstrictors with cocaine
Management of cocaine-associated chest pain and myocardial infarction. studies demonstrate that nitroglycerin reverses cocaine-associated vasoconstriction.
The number of people dependent on crack-cocaine in the UK has increased upon peripheral vasoconstriction induced by crack-cocaine.
This study compared two commonly used vasoconstrictors, cocaine and xylometazoline. Non-invasive techniques of measurement were utilised, with active
(1993) Shannon et al. Circulation. Read by researchers in: 100% Medicine. BACKGROUND: The effects of cocaine on the coronary circulation were examined in
J. Physiol. Phamacol. 72: 335 - 343. The pressor response to cocaine is a consequence of mesenteric vasoconstriction and hindquarters vasodijation as a result
Cocaine-induced microvascular vasoconstriction but differential systemic haemodynamic responses in Yucatan versus Yorkshire varieties of swine.
Cocaine International Programme on Chemical safety Poisons Information cardiac arrhythmia but may aggravate coronary or systemic vasoconstriction.
Cocaine: local anesthetic with intrinsic sympathomimetic, vasoconstrictive properties. Spinal anesthesia:-- enhancement & prolongation of local anesthetic
Contains details of Cocaine-induced cerebral vasoconstriction differs as a function of sex and menstrual cycle phase.
We hypothesized that chronic use of cocaine over time would increase the prevalence of hypertension and that cocaine induced vasoconstriction would result in
Crack cocaine causing fatal vasoconstriction of the aorta. answers are found in the MEDLINE -- online and for download to iPhone, iPad, Android, BlackBerry,
The lethality of cocaine is related to the increase the maximal uptake of oxygen associated with coronary vasoconstriction. The myocardial demand of oxygen is
Abstract. Study Objective: To determine whether beta-adrenergic blockade augments cocaine-induced coronary artery vasoconstriction.
Clinical Investigation Cocaine-Induced Cerebral Vasoconstriction Detected in Humans With Magnetic Resonance Angiography MarcJ. Kaufman, PhD; Jonathan
We further explored the role of nitric oxide in cocaine-induced vasoconstriction in anesthetized rats, and in vitro by using isolated carotid artery segments.
bated by propranolol, a beta-adrenergic antagonist.11. Cocaine-induced vasoconstriction occurs in both dis- eased and nondiseased coronary-artery segments.
If cocaine effectively blocked norepinephrine reuptake in the cutaneous circulation, the resultant α-adrenergic vasoconstriction and decrease in skin temperature
Acute myocardial infarction may occur following cocaine use. .. Coronary-artery vasoconstriction induced by cocaine, cigarette smoking, or both. N Engl J Med
www.aic.cuhk.edu.hk/web8/Cocaine.htm Characterization of endothelium- dependent vasodilation and vasoconstriction in coronary arteries
Reversible cerebral vasoconstriction syndrome (RCVS) is characterized by recurrent . or exposure to vasoactive drugs such as cocaine, the ergot derivatives,
Smoking cocaine is particularly dangerous. When cocaine is snorted (the most common form of use), there is local vasoconstriction that limits its absorption,
“Cocaine-Induced Cerebral Vasoconstriction Differs as a Function of Sex and Menstrual Cycle Phase” is the subject of a study recently conducted by Marc J.
Cocaine has direct membrane (local anaesthetic) stabilising effects. . Influence of labetalol on cocaine-induced coronary vasoconstriction in
Even small doses of cocaine taken intranasally have been associated with vasoconstriction of coronary arteries. Coronary vasoconstriction may
The vasoconstriction index increased in the pulmonary arteries of the exposed group. Chronic crack cocaine inhalation causes extensive histological changes
In [cocaine users with chest pain suggestive of acute coronary syndrome] does [ beta-blocker administration]cause [poten- tiation of coronary vasoconstriction]?
Cocaine-induced coronary arterial vasoconstriction is enhanced at sites of atherosclerotic narrowing. Delayed or recurrent vasoconstriction of
N0000009882. Par. Venous Vasoconstriction. Physiologic Effect Of. COCAINE HCL PWDR · COCAINE HCL 4% SOLN,TOP · COCAINE HCL 10% SOLN,TOP
Chronic cocaine abuse has been associated with cerebrovascular pathology. This is likely to reflect its vasoactive effects; cocaine produces vasoconstriction and
Human cardiac catheterization studies have shown cocaine to be a powerful coronary vasoconstrictor. In the case described, there was
Half-life — After intravenous or inhalation administration, the plasma half-life approximates 60 minutes; cocaine's vasoconstrictive properties inhibit absorption
Although cocaine provides good vasoconstriction and is well tolerated by most patients, there are significant problems with its use. One such
Kuhn, F E; Gillis, R A; Virmani, R; Visner, M S; Schaer, G L.
to being a potent local anesthetic agent, cocaine was also a potent vasoconstrictor. It was introduced in 1884 as the first local anesthetic and it rapidly gained
It is suggested that bowel ischemia was secondary to the vasoconstrictive properties of the maternally abused cocaine and that secondary invasion of the bowel
Cocaine (an alkaloid ester extracted from the leaves of plants including coca). What can cause vasoconstriction? Cocaine (an alkaloid ester extracted from the
Contains details of Cholinergic modulation coronary vasoconstriction stimulated cocaine conscious dogs.
No evidence of cocaine toxicity was seen in either group. Preparations including adrenaline were also observed to intensify local nasal vasoconstriction
-hyperpyrexia (due possibly to inability to dissipate heat due to vasoconstriction effects). -necrosis of the nasal septum (due to snorting cocaine- vasoconstriction
PURPOSE: Although labetalol is sometimes given to patients with cocaine- associated chest pain, its influence on cocaine-induced coronary
You have found the Vasoconstriction Forum on Forum Jar. This forum is a place where people who are interested in Vasoconstriction come Cocaine Forum
this page speaks in english of Origin and history of cocaine. used later in the interventions on the nose, throat and teeth having vasoconstrictor properties and
Placental abruption (r/t vasoconstriction- @cocaine) = IUGR(poor nutrition/ perfusion) = Prematurity (preterm labor) = Birth defects (especially
Conclusions: Cocaine-induced coronary vasoconstriction is potentiated by beta- adrenergic blockade. Beta-adrenergic blocking agents
drugs such as cocaine and Ecstacy in the United Stroke from reversible cerebral arterial vasoconstriction has been described in a variety of conditions,
It is the only local anesthetic that causes vasoconstriction, or narrowing of the blood vessels. For this reason, cocaine is useful in surgeries that require a
As in adults, cocaine may block the reuptake of neurotransmitters in the fetus, resulting in fetal vasoconstriction, hypertension and tachycardia. Theoretically
Cocaine is the only anaesthetic that causes vasoconstriction consistently because of its ability to inhibit the re-uptake of noradrenaline by storage granules at the
Mendoza-Baumgart MI. Vasoconstriction caused by cocaine is enhanced by sodium salicylate: is inducible nitric oxide synthase mRNA related?
Although an interaction between epinephrine vasoconstriction and cocaine has been alleged, the real problem is additive, not interactive—in
Norephedrine, however, had no effect on force or rate of cardiac contractions. 3 Cocaine (10 μM) potentiated the coronary vasoconstriction and positive inotropy
Keywords: Cocaine, vasoconstriction, platelet activation, atherosclerosis, infarction, cocaethylene, alcohol, nicotine. INTRODUCTION. The cocoa plant
List of causes of Cutaneous vasoconstriction and Hallucinogen toxicity, alternative diagnoses, rare causes, misdiagnoses, patient stories, and much more.
Cocaine is benzoylmethylecgonine- a local anaesthetic of the ester type.1 It has been used as both a local anaesthetic and vasoconstrictive agent for intranasal
INTRODUCTION. Cocaine usage has a growing incidence worldwide. The most common route of administration is nasal that induces local vasoconstriction and
Possible explanations of the mechanism for lower fetal cocaine concentrations may in- elude uterine vasoconstriction, incomplete maternal,"fetal equalibration,
The effects of vasoconstriction. There is no doubt that cocaine results in vasoconstriction in the mother, in the placenta and in the fetus. It is likely, but generally
We conclude that cocaine and benzoylecgonine cause significant fetal cerebral artery vasoconstriction in vitro. Cocaine and benzoylecgonine-induced cerebral
Mechanism of the blood pressure--raising effect of cocaine in humans by peripheral vasoconstriction is the main mechanism mediating blood
Publication » Cocaine-induced cerebral vasoconstriction detected in humans with magnetic resonance angiography.
In 1865, Willhelm Lossen determine the correct molecular formula of cocaine Vasoconstrictor is a substance used to keep the anesthetic solution in place at a
Sudden deaths following cocaine overdose are probably due to Peripheral vasoconstriction, psychomotor agitation, and seizures produce
and other systemic complications. Acutely, cocaine results in coronary artery vasoconstriction, tachycardia, hypertension, increased myocardial oxygen demand,
Mechanistic theories point to cocaine and its sym- pathomimetic effects causing vasoconstriction with resultant cerebral ischemia. This hypothesis is sup-
(see cocaine associated chest pain). Β-blockers contraindicated (unopposed alpha stimulation worsens coronary and peripheral vasoconstriction); Exclude
In the presence of DL-propranolol, the vasoconstrictive effect of cocaine was subject to rapid tachyphylaxis. Prazosin (5 x 10(-9) M), also in the presence of
Health - Cocaine's vasoconstriction, mdmanimal, Cocaine & Crack, 1, 12-03- 2010 00:13. Health - Mephedrone & Vasoconstriction, Malilou
The ester agents include cocaine, procaine, amethocaine and chloroprocaine, Adrenaline is the most commonly used vasoconstrictor, it is added to local
Cocaine induces ischemia by concomitant systemic and coronary arterial vasoconstriction, which causes imbalance in the myocardial oxygen supply- demand
Bear in mind that the coronary vasoconstriction induced by cocaine is primarily α- adrenergic receptor mediated, because it can be reversed by
What are the hormones that cause vasoconstriction? Norepinephrine and Glucocorticoids. What causes vasoconstriction? Cocaine (an alkaloid ester extracted
to supply an acceptable explanation for the mechanism of this vasoconstriction. There is dispute as to whether the effects of cocaine are due to a stimulation
Despite being an excellent local anesthetic, the risk of abuse and the intense local vasoconstriction it produces prevent cocaine from being more widely used
Based on all of these findings they have hypothesized that cocaine induced uteroplacental vasoconstriction (CIUV) leads to fetal oxidative stress, attenuating the
Fortunately, the potent α1-mediated vasoconstriction associated with cocaine is limited by the coexisting vasodilatory effect mediated by the
Cocaine-induced vasoconstriction of the coronary arteries can be reversed with phentolamine, an [[alpha].sub.1]-receptor antagonist.
Potentiation of cocaine-induced coronary vasoconstriction by beta-adrenergic blockade. Ann Intern Med. 1990;112:897-903. 10. Boehrer JD, Moliterno DJ,
Mismatch between myocardial oxygen supply and demand from cocaine-induced vasoconstriction and increased myocardial workload are often invoked as the
Consequently, features of sympathetic overactivity are prominent in cocaine overdosage, notably tachycardia, dilated pupils and intense vasoconstriction.
PURPOSE: Although labetalol is sometimes given to patients with cocaine- associated chest pain, its influence on cocaine-induced coronary vasoconstriction is
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