The client with cardiovascular disease (CVD) poses a risk for cardiovascular complicatsion such as ___________ and ____________, during oral health care procedures
myocardial infarction
stroke
Clinical implications when providing dental hygiene care to a CV pt include the fact that stress can lead to what 3 cardiovascular complications?
MI
angina pectoris
CVA
What are 4 topics that we emphasize in regards to the importance of understanding CV in relation to dental hygiene care?
ADEs
signs to indicate emergencies
local anesthesia
drugs pt is taking
of the top 200 drugs, _______ of the top 20 are CVD drugs
6
What does CVD refer to?
disease of the heart and blood vessels
Name 4 diseases of the heart and blood vessels (CV diseases)
arrhythmias
hypertension
myocardial infarction
heart failure
fill in the blanks of the following: chronic diabetes can lead to _________, which can lead to atherosclerosis, which can lead to __________, which can lead to ________, __________, or ____________
hyperglycemia
hypertension
heart attack
stroke
heart failure
What is the leading cause of disease and morbidity in the US and developed countries?
cardiovascular disease
What is the goal of dental treatment for cardiovascular pts?
to provide timely preventive and therapeutic treatment
What are 3 special consideration that may be required during pt assessment of CVD pts?
use vasoconstrictors with caution
take accurate record of current medications
use of tobacco products, alcohol, and OTC and recreational drugs documented
Cardiac risks are increased in pts who are unable to meet a _____-MET demand
4
The following are what rank of clinical predictors of CVD?
advanced age
atrial fibrilation
low functional capacity
stroke
uncontrolled hypertension
anxiety levels
MINOR clinical predictors
The following are what rank of clinical predictors of CVD?
stable angina
previous MI
compensated heart failure
diabetes mellitus
renal insufficiency
INTERMEDIATE clinical predictors
The following are what rank of clinical predictors of CVD?
unstable angina
decompensated heart failure
severe valvular disease
significant arrhythmias
MAJOR clinical predictors
What are 7 factors used to assess cardiovascular status?
anxiety level
diabetes mellitus
hyperlipidemia
vital signs and qualities
advanced age
renal insufficiency
MET (metabolic equivalents)
What has the American Heart Association stated/recommended in task force on practice conditions guidelines in regards to waiting 6 months after a pt has had an MI to treat them in the dental office?
they recommend that determination of the pt's functional capacity is a reliable indicator of risk in treatment rather than just waiting 6 months
What test is used to evaluate pt's overall cardiac risk for oral healthcare procedures; and provides a reasonable approach to assess pts physical and emotional ability to undergo comprehensive dental hygiene care?
Metabolic Equivalents (METs)
What should we do if we have a pt who cannot complete one or more of the activities of 4 METs?
do not treat and refer for medical evaluation
The following activities are what MET level?
dress, eat, use the toilet
walk indoors around house
complete light housework (dusting, washing dishes)
walk a block on level ground at 2-3 mph
less than or equal to 1 MET
The following activities are what MET level?
climb a flight of stairs, walk up a hill
walk on level ground at 4 mph
run a short distance
complete heavy housework (scrubbing floors, moving heavy furniture)
participate in moderate recreational activities (golf, bowling, dancing)
less than or equal to 4 METs
The following activities are what MET level?
strenuous sports (swimming, skiing, singles tennis, basketball)
less than or equal to 10 METs
What measurements that are taken at dental appointments provide clues to confirm or rule out significant CV disease?
blood pressure and pulse
true or false. blood pressure and pulse need to be recorded on all new pts at the initial apointment. BP and pulse need to be measured at every appointment on pts with a history of CV.
true
Blood pressure of what level is contraindicated for elective dental procedures, and indicates referral for medical evaluation?
greater than or equal to 180/110
Pulse pressure closely correlates with systolic or diastolic pressure?
systolic
What is needed preoperatively in pts with the presence of arrhythmias?
medical consultation
What are 3 significant findings in regards to pulse rate and rhythm in pts?
hypertension
coronary heart disease
valvular pts with PVCs (premature ventricular contractions)
Research suggests that periodontal disease may play a role in the _______________ aspect of coronary heart disease.
thromboembolic
Oral bacteria may increase the risk of Cardiovascular disease via what?
platelet aggregation
Atheroslcerosis may represent a response to injury to the blood vessel walls by what 3 types of insult? And what do these include?
mechanical
biochemical
bacterial
includes: chlamydial infection and severe generalized periodontal disease
true or false. Most individuals with CV can be treated in the dental office and recieve local anesthesia
true
If a pt comes to the dental office with a recent diagnosis of CV or evidence of uncontrolled disease, what does it require?
physician consultation with a medical clearance
List 4 contraindications for elective procedures including dental hygiene care.
severe hypertension: BP greater than or equal to 180/110
recent history of MI: within 1 month
uncontrolled congestive heart failure resulting in low functional capacity: less than 4 METS capacity
unstable angina pectoris
What is the most common form of hypertension?
essential hypertension
Who recommends that all pts whould have an annual BP measurements at recall appointments as a screening measure to identify hypertensive individuals?
ADA
The goals of prevention and management of hypertension are to reduce morbidity and mortality by maintaining systolic BP below _____ and diastolic BP below ________
140
90
treatment and medical management of hypertension may prevent what 3 things?
prevent stroke
preserve kidney function
prebent or slow progression to heart failure
true or false. The major treatment for hypertension is PHARMACOLOGIC
true
Adoption of a ________ __________ is critical for prevention of hypertension; and also for management of those with hypertension.
healthy lifestyle
Major lifestyle modifications that aid in the prevention and management of hypertension include what 3 things?
aerobic exercise
weight reduction
good diet
What are 4 therapeutic goals and pharmacologic srategies for hypertension?
reduce volume overload: thiazide-type diuretics
blocking adrenergic receptors in the heart
dilating blood vessels
reducing sympathetic outflow from the CNS
Name 6 classes of drugs that are selected common antihypertensive drug.
diuretics
beta blockers: olols
ACE inhibitors: prils
calcium-channel blockers: pines
angiotensin-receptor blockers
alpha-blockers
Which class of selected common hypertensive drugs cause the body to eliminate excess fluids and sodium through urination?
diuretics
Which class of selected common hypertensive drugs decrease the heart rate and output of blood from the heart by blocking beta-sympathetic stimulation in the heart?
beta-blockers: olols
Which class of selected common hypertensive drugs expand blood vessels (vasodilation) and decrease resistance to blood flow?
ACE inhibitors: prils
Which class of selected common hypertensive drugs interrupt the movement of calcium into the cells of the heart and blood vessels to produce vasodilation?
calcium-channel blockers: pines
Which class of selected common hypertensive drugs inhibit vasoconstriction by blocking angiotensin binding, resulting in vasodilation?
angiotensin-receptor blockers
Which class of selected common hypertensive drugs prevent sympathetic innervation to alpha-receptors, thereby blocking vasoconstricion and tachycardia?
alpha-blockers
All of the following are CV conditions contraindicated for elective dental procedures, such as dental hygiene care, except for one, which is it?
severe hypertension
recent history of myocardial infarction
thromboembolic disorders
uncontrolled congestive heart failure resulting in low functional capacity
unstable angina pectoris
thromboembolic disorders
Name the 3 main types of diurtetics.
thiazide
loop
potassium sparing
What is the prototype thiazide diuretic?
hydrochlorothiazide (HCTZ)
Which type of drug is among the most common agents used for hypertension?
thiazides: diuretic class
The mechanism of action of which type of drug is to interfere with sodium reabsorption in the distal tubule of the kidney and promote diuresis?
thiazide diuretics
What is the most common adverse reaction of the use of thiazide diuretics? What is done to help this?
hypokalemia: loss of too much potassium
Pts often take potassium supplements: K-Dur
What is another common adverse reaction of the use of thiazide diuretics besides the most common hypokalemia?
postural hypotension
What is a dental drug interaction with the use of thiazide diuretics?
COX inhibitor analgesics: reduce the antihypertensive effect of the agent
What is the most commonly used LOOP diuretic?
furosemide (Lasix)
Which drugs mechanism of action is to inhibit reabsorption of sodium and promote diuresis? they act on the ascending limb of the loop of Henle.
Loop diuretics
What is an adverse effect of loop diuretics? What is done to help with this?
hyperkalemia
potassium replacement therapy
Furosemide (the most commonly used loop diuretic) is often used to reduce fluids associated with what?
congestive heart failure
What is a dental drug interaction with the use of furosemide (loop diuretics)?
COX inhibitor: cause it to lose antihypertensive effect
What are the 2 main drugs in the potassium-sparing diuretics class?
spironolactone
triamterene
Which drugs mechanism of action is to interfere with the potassium/sodium exchange in the collecting tubules and collecting duct to conserve potassium that is reabsorbed at the expense of sodium in the exchange system?
potassium-sparing diuretics
potassium-sparing diuretic/thiazide combination therapy is common, with the most frequently used agent including what?
triamterene and HCTZ: Dyazide, Maxzide
What are the three different types of beta blocking agents?
nonselective beta blockers
selective agents: block B1 more than B2
agents that block both alpha and beta
Most beta blockers end with what suffix?
olol
which type of beta blocker agents can cause an increased risk of hypertension when vasoconstrictors are used in LA? Which type of beta blockers have less risk with vasoconstrictors?
nonselective: risk of hypertension with LA
selective and alpha/beta blockers: less risk
What are 5 possible side effects that may occur with the use of beta blocking agents?
bradycardia
dizziness
fatigue
nausea
mild xerostomia
What is a dental drug interaction with the use of beta blocking agents?
COX inhibitors: antagonize the antihypertensive effects of them?
What is the prototype non-selective beta blocking agent?
propranolol (Inderal)
true or false. When nonselective beta-blockers are reported on the medical history, vasoconstrictors should be used in low concentrations with an aspirating technique, taking care to avoid intravascular injection
true
Which beta receptor do selective beta blockers inhibit more? Which makes this the agent of choice with what condition?
beta 1
conditions of bronchospasms
Are vasoconstrictors in LA safe to use if the pt is taking a selective beta blocker?
yes, but the safety is reduced with increased dose of the drug
What type of drug has the same effects as propranolol with less peripheral resistance, may be prescribed in combination with a diuretic and has side effects similar to beta blocking agents? Labetalol (Normodyne) is an example of this type.
Alpha- and Beta- adrenergic blocking agent
Calcium-channel blockers (antihypertensive drugs) are effective for what 3 CV conditions?
hypertension
arrhythmia
angina pectoris
The choice of the specific CCB used depends on what?
the specific disease being managed
One type calcium channel blocker is derived from a dihydropyridine structure; what do the names of these agents end in?
pine
Several Calcium channel blockers (especially nifedipine) cause what 3 adverse effects?
gingival hyperplasia
xerostomia
dysgeusia
What are 2 calcium channel blockers that are less likely to cause gingival hyperplasia?
amlodipine
isradipine
Oral health education plan for pts taking calcium channel blockers and are experiencing gingival hyperplasia include what 4 things?
effective biofilm removal to reduce rate of enlargement
maintenance schedule: at every 3 months
monitor teeth for caries
include caries preventive agents for home care
What is an antihypertensive drug that has no interaction with COX inhibitors so they can be used for analgesics?
calcium-channel blockers
What are the 2 classes of drugs that affect angiotensin receptors to reduce blood pressure?
Angiotensin-converting enzyme inhibitors (ACEI)
angiotensin-II receptor antagonists
Which type of angiotensin inhibitors prevent the formation of angiotensin II by blocking the release of the enzyme responsible for converting angiotensin I to angiotensin II?
Angiotensin-converting enzyme inhibitors (ACEIs)
Lisinopril blocks vasoconstriction of what?
coronary arteries
Which angiotensin inhibitor does not disturb the enzyme levels, but blocks angiotensin-II receptor, preventing vasoconstriction.
Angiotensin-II receptor antagonists
Which angiotensin inhibitor is more selective with fewer side effects, is usually prescribed with diuretic or agent from another antihypertensive class, and COX inhibitors can antagonize antihypertensive effects of it?
Angiotensin-II receptor antagonists
Which antihypertensive drugs end in -pril?
angiotensin-converting enzyme inhibitors (ACEI)
Which type of angiotensin inhibitor blocks vasoconstriction, reducing peripheral resistance and fluid retention; and also retards the progression of nephropathy in diabetes; which makes it the agent of choice for management of hypertension in diabetes?
angiotensin-conerting enzyme inhibitors (ACEI)
What are 2 common side effects of angiotensin-converting enzyme inhibitors?
dry, hacking cough: which worsens in supine position
other side effects: similar to other antihypertensives
What is the prototype drug for Angiotensin-II receptor inhibitors?
losartan (Cozaar)
Which angiotensin inhibitor has the mechanism of action of vasoconstriction by blocking aldosterone secretion and lowers BP?
angiotensin-II receptor inhibitors
true or false. Side effects are minimal with the use of angiotensin-II inhibitors, but they should NOT be used during pregnancy (category D, 2nd and 3rd trimestor).
true
List 2 other antihypertensive drugs that are used when the other agents are not successful (often used in combination therapy).
alpha 1 adrenergic blockers: doxazosin, terazosin
CNS-mediated action: clonidine, guanethidine, and reserpine
what are 3 common side effects of 'other' antihypertensive drugs? (alpha 1-adrenergic blockers, and CNS-mediated action drugs)
postural hypotension
taste disturbance
xerostomia
which type of drug used for antihypertension has a potential drug interaction with epi; it reduces the duration of the LA, it can cause severe postural hypotension; but is less frequently in reflex tachycardia, and COX inhibitors reduce the antihypertensive effect?
alpha-adrenergic blockers
Which antihypertensive drug is the drug of choice for hypertension associated with pregnancy?
hydralazine
what are 2 side effects of hydralazine that affect dental hygiene?
orthostatic hypotension
cardiac palpitation
(monitor BP at each appointment)
The following are all common adverse drug effects with the use of antihypertensive agents; list the drug that causes the effect.
urination
fatigue
chronic dry cough
gingival hyperplasia
postural hypotension and xerostomia
urination: diuretics
fatigue: beta blockers
chronic dry cough: ACE inhibitors
gingival hyperplasia: some CCBs
postural hypotension and xerostomia: several classes
When is gingival enlargement (from gingival hyperplasia caused most commonly by nifedipine) noted after initiation of therapy?
1-2 months
gingival hyperplasia primarily effects what areas of the gingiva?
labial or facial interdental papillae
What condition is most likely occuring; it is associated with erythematous and edematous chronic inflammation; pt may report pain, gingival bleeding, and difficulty with mastication; frequent maintenance schedule and plaque removal via oral hygiene procedures are indicated to prevent overgrowth.
gingival hyperplasia
will plaque control prevent gingival hyperplasia?
no
What drug used in dentistry reduces the efficacy of most antihypertensive agents?
COX-1 inhibitors
Which drug used in dentistry decreases the effect of beta-adrenergic blockers (pharmacologic antagonism)?
sympathomimetic amines
because nonselective beta blockers and epinepherine can result in a hypertensive reaction by unopposed alpha-adrenergic stimulation what should be done?
use basoconstrictor in low concentration
cardiac dose
What can happen if alph-blockers are being used and epinepherine is introduced into the vascular system?
excessive hypotension
What is the name of the drug used in dentistry to stimulate salivation that may have an additive effect with antihypertensive agents and lead to hypotension?
pilocarpine (Salagen)
Atherosclerosis causes what CVD?
coronary artery disease (CAD)
What disease impedes the supply of oxygenated blood when there is an increased demand for oxygen in cardiac muscle?
coronary artery disease
What are 3 factors that increase the hearts demand for oxygen?
heart rate
vascular wall tension
contractile state
What is a temporary deficiency of oxygen to a portion of the myocardium?
angina pectoris
What is permanent deficiency of oxygen to a portion of the myocardium resulting in necrosis?
myocardial infarction
The following are therapeutic goals in the management of CAD. List the pharmacologic strategy for each goal.
inhibit progression of atherosclerosis
improve circulation in coronary arteries
reduce workload
prevent thrombus formation
prevent coagulation
inhibit progression of atherosclerosis: lipid-lowering agents; HMG-co-A reductase inhibitors, bile acid sequestrants, niacin and others
improve circulation in coronary arteries: nitrates; calcium channel blocking agents
What are 3 important implications for dental hygiene treatment in the medical management of coronary artery disease?
CAD pt is at increased risk for CV emergencies
follow protocol to reduce stress
limited dose of epi may be warranted: 1 cartridge of 1:50,000; 2 cartridges of 1:100,000; or 4 cartridges of 1:200,000
COX inhibitors may only be used for pain management with which agent?
calcium-channel blocking agents
There is a high risk factor for CAD if a pt has high levels of what 3 things?
cholesterol
low-lipid lipoproteins (LDLs)
triglycerides
The effects of high cholesterol levels can lead to what 3 conditions?
stroke
MI
hypertension
The recommendations for healthy total cholesterols are:
total cholesterol < _________ mg/dl
LDL < ___________ mg/dl
200
130
Which type of drug is the most widely used class of anticholesterol drugs?
HMG coA reductase inhibitors
Which class of drug is commonly referred to as statins? And list 4 examples of this class of agent.
HMG coA reductase inhibitors
liptor
zocar
restor
lescol
What is the mechanism of action of HMG-coA reductase inhibitors?
interfere with cholesterol synthesis in the liver
true or false. HMG-CoA reductase inhibitor drugs are well tolerated, and ADEs are usually mild and o not affect the dental hygiene treatment plan
both are TRUE
The following drugs are examples of agents in which anticholesterol class?
cholestyramine
colesevelam
colestipol
bile acid sequestrants
Which class of anticholesterol drugs mechanism of action is that the agents bind with bile in the intestine and form insoluble complex; they may be used in combination with HMG-coA reductase inhibitors, and may delay or reduce absorption of other oral medications?
bile acid sequestrants
why is it important to take other drugs 4-6 hours after or one hour before taking bile acid sequestrants?
because they can delay or reduce the absorption of other oral meds
Which type of anticholesterol drug is used to lower cholesterol and triglycerides and increase HDL levels?
Fibric acid derivatives
Lopid and TriCor are examples of what class of anticholesterol drugs?
fibric acid derivatives
Which type of anticholesterol drug's mechanism of action is to inhibit synthesis and increase clearance of LDLs and reduce triglycerides by decreaseing hepatic extractino of free fatty acids?
fibric acid derivatives
true or false. There are no drug-drug interactions with the use of fibric acid derivatives in dentistry.
true
What are 3 ADEs of the use of fibric acid derivatives?
they are all mild
dyspepsia
abdominal pain
diarrhea
Niacin (nicotinic acid-or niacor) is an anticholesterol agent and has the following results:
reduces _________% reduction in total and LDL cholesterol
Reduces ________% reduction intriglycerides
Increase_________% in HDL
10-20%: reduction total and LDL cholesterol
30-70%: reduction in triglycerides
20-35%: increase in HDL
What is the mechanism of action for Niacin (anticholesterol agent)? And give an example of a drug.
mechanism of action: unclear
example: Niaspan
Which anticholesterol agent has an unclear mechanism of action, is taken with meals to avoid GI upset, can cause orthostatic hypotension so we must follow protocol to prevent it; and has no drug interactions with dental drugs?
Niacin
The drugs Ezetimibe (Zetia), and ezetimibe and simvastatin (Vytorin) are found in plant stanol ester food products, and are drugs that are in what class?
lipid-lowering, or anticholesterol drugs
amyl nitrite, and nitroglycerin are drugs used as vasodilation agents to relieve angina pectoris, are they fast acting or long acting agents?
fast acting
Isosorbide dinitrate, isosorbide mononitrate, and calcium channel blockers are used as vasodilation agents to relieve angina pectoris, are they fast acting or long acting agents?
long acting
What is a common vasocilator used to manage anginal pain- and a sublingual agent is carried by the pt at all times?
nitroglycerin
two dose forms of nitroglycerin include:
ointment
IV formulation
What are each used for?
ointment: prevent angina
IV: hospital use
true or false. If a pt presents for an apointment and has nitroglycerin it is necessary to investigate side effects based on the agent used.
true
Which vasodilation drugs are used to prevent and treat angina caused by CAD - but are not the first-choice drugs in an angina emergency?
isosorbide mononitrate
isosorbide dinitrate
Why is it necessary to monitor blood pressure if pts are taking isosorbid mononitrate or dinitrate and general anesthetics are used?
because of the LAs additivi hypotensive effects
Pts with coronary artery disease can recieve dental hygiene care if they can meet a ____ MET.
4
for pts with CAD; appointments should be kept short and minimal stressful and at what time of the day is recommended?
early afternoon appointments
true or false. It is important to used profound anesthesia in pts with CAD to minimize stress caused by pain.
true
What are 4 procedures to carry out if a pt has an angina attack?
terminate procedure provide 100% oxygen and nitroglycerin
pain that persists after agent provided and a 10 min time period: indication of MI
contact EMS and provide oxygen and 325 mg aspirin
automatic external cardiac defiberillator and CPR as needed
What is the primary pace maker of the heart?
sinoatrial SA node
Interruption of cardiac rhythm by arrhythmia compromises tissue oxygenation and may lead to death; What are 6 cardiovascular causes of cardiac arrhythmia?
myocardial ischemia
bradycardia
hypertensive heart disease
increased sympathetic activity
congestive heart failure
What is the goal for medical treatment and management of cardiac arrhythmia?
to restore synchronous myocardial contraction and to prevent thromboembolic episodes
true or false. Many antiarrhythmic drugs are used to treat other CVD conditions, so it is important to question the pt about why the drug is taken.
true
Agents used to prevent clot formation are also effective in preventing what?
arrhythmia
What are 3 possible ADEs with the use of antiarrhythmatic agents?
xerostomia
gingival enlargement
blood dyscrasias is possible
Which type of antiarrhythmic agent has increased CNS effects that are possible when LA's are used, so we should use the lowest dose?
Propafenone (class I)
Vasoconstrictors may interact adversely with Which Miscallaneous antiarrhythmic agent?
digoxin
nonselective beta-adrenergic blocking drugs
Vasoconstrictors are _______ in intractable arrhythmias, and used with ____________ with pacemakers and implanted defibrillators
contraindicated
caution
Pts with normal pulse pressure and rhythm can receive _________ _________ procedures, and ___________________
oral healthcare
vasoconstrictors
What aspects of the pulse are evaluated for disease control during assessments?
regularity
rate
true or false . Vasoconstrictors should be used in low concentrations in pts with antiarrhythmic agents
true
does the ANA recommend antibiotic prophylaxis when pacemakers or defibrillator devices are worn?
no
What is the normal process when an event disrupts the integrity of a blood vessel that is designed to prevent blood loss due to breakage of blood vessel integrity?
coagulation
hemostasis
What occurs when the clooting mechanism of blood overacts forming a clot within the vessel, imparing the blood flow to tissues; it can be arterial or venous in origin.
thrombus
Which type of thrombus begins when platelets aggregate and become surrounded by fibrin and erythrocyteds; eventually it can occlude blood vessels and cause tissue eschemia?
arterial
Which type of thrombus develop in areas of slow blood flow; the clot forms rapidly and lacks organization; it is a great concern that a small emboli will detach from the thrombi move through large vessels and wedge into small pulmonary arteries preventing deosygenated blood from entering that portion of the lung
venous
Which type of thrombus contributes to each of the following conditions:
rasient ischemic attacks and stroke
occlusion of coronary artery grafts
coronary artery rethrombosis after tx to remove clots
MI and death in unstable angina
increased incidence of periprocedural MI in pts who are undergoing coronary angioplasty
mural thrombosis after MI
recurrent MI
arterial thrombi
What type of drug therapy is frequently administered for pts with prosthetic cardiac valves as well as thromboembolic disease?
anticoagulant therapy
What is the goal of treatment of pts with thromboembolic complications of CV disease?
the use of antithrombotic agents to reduce morbidity and mortality from thromboembolic events
Name an oral anticoagulant that is effective in the prevention of a thromboembolic event? Name a parenteral anticoagulant that is effective in prevention AND treatment of thromboembolism?
warfarin
heparin
What are the two main classes of antithrombotic agents?
aspirin
clopidogrel (Plavix)
Aspirin is available in what 2 tablet doses?
81 mg
325 mg
How is clopidogrel available?
75 mg once daily
What drug is prescribed for pts who cannot take aspirin, and may be used in combination with aspirin for an additive effect?
clopidogrel (Plavix)
What is the mechanism of actino of clopidogrel?
similar to aspirin, it affects the ability of the platelet to clump together
are there any contraindications for dental hygiene tx if pt is taking aspirin or clopidogrel?
not
What are the two main groups of anticoagulant agents?
heparin (IV)
warfarin (coumadin): given orally
Which type of anticoagulant drug is a new group for use at home after joint replacement surgery or abdominal surgery; it reduces deep vein thrombosis leading to pulmonary embolism?
low molecular weight heparins
Which anticoagulant is commonly prescribed alone or in combination with clopidogrel?
warfarin
What are 2 low molecular weight heparin agents that are available for home use?
dalteparin
enoxaparin
What is an adverse effect of low molecular weight heparin agents?
bleeding (risk is minimal)
What drugs should not be taken with low molecular weight heparin agents?
drugs affecting homeostasis (aspirin, ibu, naproxen, and ketorolac)
What type of anticoagulant drugs mechanism of action is that it interferes with the synthesis of several vitamin K clotting factors including thrombin in the liver? And an adverse effect is excessive bleeding?
warfarin
blood clotting factors are measured through what test?
INR
with therapeutic doses, the INR for pts taking warfarin are between what range? also, subgingival/debridement can be safely performed with INR at what level?
2-3.5
less than or equal to 3.5
How long does it take for the development of clotting factors after the dose of warfarin has been reduced?
3 days
What are 2 types of drugs used in dentistry that can increase the INR level when warfarin is taken?
COX-1 inhibitors
some antibiotics
What drug used in dentistry increases metabollism and reduces the anticoagulant effect of warfarin?
phenbarbital
What are some good drugs that can be used with warfarin if analgesic is needed?
acetaminophen
analgesics without aspirin
What is an anticoagulant that is used for pts after the replacement of prosthetic heart valves; the mechanism of action is that it inhibits platelet adhesion and prolongs the life of platelets, and it can be combined with aspirin (Aggrenox) which reduces stroke in pts with transient ischemia of brain or ischemic stroke caused by thrombus?
dipyridamole (Persantine)
If pts are taking agents that affect platelet adhesion do they require excessibe bleeding blood test before DH care?
no
if a pt is taking warfarin, what are 3 dental hygiene implications?
monitor INR levels greater than or equal to 3.5
apply pressure for uncontrolled bleeding with local hemostatic measures
topical clotting agents can be used
are pts taking 81-325 mg of aspirin a day likely to have prolonged bleeding? If the dose is higher should they be monitored?
no
yes
How long before periodontal procedures does the use of aspirin need to be discontinued?
1-2 weeks
If pts have congestive heart failure do most pts develop right or left sided heart failure?
both
edema in lower legs is a sign of what heart failure?
right side
orthopnea; edema in the lungs is a sign of what heart failure?
left side
What are 4 lifestyle modifications in the medical management of congestive heart failure?
diet restrictions
avoid exposure to heavy air pollution
air conditioning is essential
regular physical activity is encouraged
What are 5 effects of pharmacologic management of pts with congestive heart failure?
reduction of cardiac workload and myocardial oxygen consumption
imrpovment in cardiac muscle contractility
control of sodium and fluid retention
increased peripheral tissue perfuaion and oxygenation
prevention of thromboembolic episodes
cardiac glycosides increase the force of contraction (inotropic effect) to improve cardiac output and amount of blood leaving the left ventricle. these drugs are used for pts with what condition?
congestive heart failure
What are 3 examples of cardiac glycosides used for pts with congestive heart failure? Which of the 3 is most common?
digitalis
digitoxin
digoxin
digoxin (Lanoxin): most common
What combination drug is used for african american individuals with heart failure?
isosorbide dinitrate and hydralazine HCI (BiDil)
The following adverse effects may occur with the use of what agent used in heart failure?
narrow margin of safety
blood levels monitor frequently
toxicity can develop owing to changes in dose, metabolism, or absorption of it
anorexia
cardiac arrhythmia
gagging
increased salivation
digoxin
What is the first sign of digoxin toxicity (which is common)? And what are 3 signs after that?
gastrointestinal effects: first sign
fatigue
dizziness
altered cardiac rhythm
List 5 drugs used in dentistry that can increase digoxin serum levels.
benzodiazepines
itraconazole
erythromycin
clarithromycin
tetracyclines
What dose of vasoconstriction is recommended if pts are taking digoxin?
1:200,000
the __________ decrease heart rate and the output of blood from the heart
olols
the __________ interrupt the movment of calcium into the cells of the heart and blood vessels to produce vasodilation
pines
_____ is a common diuretic used to eliminate excess fluids and sodium through urination and decrease hydrostatic pressure
HCTZ
The antihypertensive drugs that prevent conversion of a body enzyme to one that causes vasoconstriction are what?