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29 Cards in this Set
- Front
- Back
Infective Endocarditis Lesion
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-Vegetation (bacterial) that develops on a heart valve because of generally turbulent backflow of blood through the heart due to defect
-Congenital or acquired defect of endothelial tissues near high-flow shunts -males > 60 years of age (about 25 % of all cases) |
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Common microbial agents involved in IE
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-most common individual organism is staph aureus (accounts for 33%)
-most common group is viridians strep (accounts for 55%) |
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cardiac conditions that Must use Antibiotic premedication
HIGH RISK OF BACTEREMIA |
High Risk
-Prosthetic heart valves -Previous history of IE -Complex cyanotic congenital heart dx (Tetrology of Fallot) -Surgically constructed -systemic pulmonary shunts |
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cardiac conditions that Must use Antibiotic premedication
MODERATE RISK OF BACTEREMIA |
Most other congenital cardiac malformations
-Acquired valvular dysfunction -Idiopathic hypertrophic cardiomyopathy (murmurs) -Mitral valve prolapse with valvular regurgitation |
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procedures requiring antibiotics before for cardiac condition patients
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Prophy, Scaling, probing
Extraction Surgery Restorations below the gum line |
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standard meds for cardiac patients before dental procedure
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-Amoxicillin: 2.0 gm 1 hr prior to dental appointment
-Allergic to Penicillins: Clindamycin 600 mg 1 hr prior to procedure -if unable to take oral meds than inject 30 min. prior |
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standard meds for children that have heart problems before dental procedure
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-based on body mass
-Amoxicillin 50 mg/kg orally 1 hr prior to procedure -Allergic to Pencillins Clindamycin 10 mg/kg 1 hr before procedure, then half dose 6 hours after initial dose -Cephalexin or Cefadroxil 50 mg/kg orally 1 hr before procedure -30 mins before if must be injected |
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if patient taking long term penicillian what percautions should be taken
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-Avoid cephalosporins if allergic (anaphylaxis) reaction to penecillin
-this is because About 1/3 of cephalosporins are cross-reactive with pencillins |
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Rheumatic Heart Disease (RHD)
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-Sequellae of acute rheumatic fever
-Associated with valvular stenosis and regurgitation that predisposes pt. to IE -Caused by: Group A beta-hemolytic streptococcal pharyngitis |
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Carditis
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results in damage to the heart valves, primarily the mitral valve
40-50 % of patients w Acute Rheumatic Fever have carditis |
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Prosthetic Heart Valves
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Requires monitoring of coagulation status prior to any surgical procedure
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Atherosclerotic Heart Disease (ASHD)
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-Thickening of the intimal layer of the arterial wall caused by the accumulation of lipid plaques
-Results in narrowed lumens, diminished blood flow & O2 supply -Atherosclerosis is the most common cause of angina & MI, of strokes (CVA) & peripheral arterial disease |
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Signs & Symptoms of High Lipids
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-Arcus senilus: a yellow ring of lipid around the iris of the eye
-Xanthomas: skin deposit of lipid and cholesterol look like bags under eyes -High blood pressure |
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Pulmonary Disease
Most common problems |
Chronic Obstructive Pulmonary Disease (COPD)
-Two most common forms: Chronic bronchitis Emphysema Asthma Tuberculosis |
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COPD Dental Mgt
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-Avoid nitrous oxide inhalation sedation
-Avoid use of barbiturates, narcotic, antihistamines, anticholinergics -Treat in upright chair position -Avoid erythromycin, macrolide antibiotics, and ciprofloxacin for patient taking theophylline Retards theophylline metabolism risking toxicity |
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GI System: Dental Management
acid blocking drugs |
(cimetidine) decrease the metabolism of certain dental drugs:
Diazepam (valium) Lidocaine Tricyclic antidepressants |
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Dental Implications IBD
(Inflammatory Bowel Disease) |
-Ulcerative Colitis pts
Small oral ulcers with white center and red ring on mucosa -Crohn’s disease, may be atypical mucosal ulcerations & diffuse swelling of the lips & cheeks |
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Dental Drugs Metabolized in Liver
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-Antibiotics
Ampicillin Tetracycline Metronidazole ^ Vancomycin^ ^ avoid if severe liver disease present, these are not completely metabolized |
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Hepatitis B
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Transmission is primarily by percutaneous and permucosal exposures
-small cuts in the skin -through mucosal surfaces (mouth, eye) -transfer from surfaces |
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epilepsy Long-term drug management
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Phenytoin (dilantin)
Carbamzepine (tegretol) Valproic acid -Drugs may cause an oral side-effect: gingival hyperplasia (42 %) |
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Lupus info
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-Patients may have oral lesions, ulcerations resemble lichen planus or leukoplakia
Xerostomia, hyposalivation, dysgeusia, glossodynia -may have infection potential, especially if patient is on corticosteroids or cytotoxic medications -butterfly mark on face |
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Diabetes glucose levels
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(FBS-fasting blood sugar)-serum
Normal: 70 -100 mg/dl DM: > 125 mg/dl Hypo is below 50 |
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diabetes hemoglobin levels
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Normal: 4 – 8
Good diabetic control: < 7.5 Poor diabetic control: 9 - 20 Elevated in hyperglycemia |
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diabetes medications
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Type II
Diabeta Glyburide Glipizide Type I Insulin |
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(Hyperthyroidism)Dental Management
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Untreated, incompletely treated patients are sensitive to actions of epinephrine or other pressor amines, & should not be given these agents; If the patient is well managed, agents may be used
Do not use LA with epinephrine in untreated hyperthyroid patients! Hypertension Tachycardia Dysrhythmia |
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Hypothyroidism (Myxedema)Dental Management
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Patients may have enlarged tongue
Palpate thyroid gland on soft tissue exam In untreated or poorly treated patients avoid: Surgical procedures Oral infection CNS depressants |
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nephrotoxic drugs
drugs kidneys have hard time processing |
Acetaminophen in high doses
Acyclovir Aspirin NSAIDs |
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Patients Receiving Dialysis
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-Follow conservative management protocols
-Physician consultation advised -Avoid taking BP or placing IV in the arm with the arterio-venous shunt (A-V Shunt) -Best time for care: day after dialysis Care: increased risk for carrier state of hepatitis B,C viruses & HIV |
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Anemia: Signs
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Patients may complain of sore or painful tongue, smooth tongue, redness of tongue, loss of taste sensation. Dental papillae is lost
-Oral mucosa will appear pale |