Medically compromised patient Flashcards
CONSIDERATIONS
(5)
- Thorough up to date medical history
- Appropriate physical exam
- Proper consultations sent
- Be ready to handle various emergencies
- Necessary to work together with patient’s PCP to formulate appropriate decisions
- Thorough up to date medical history
(1)
- At consultation and each follow-up visit
- Appropriate physical exam
(2)
- Full exam performed on consultation examination
- Updated on new visits, and depending on new medical history
WHY MORE RELEVANT TODAY?
* We have the ability to perform
more complicated and lengthy dental procedures
* “The aging of America”
* Polypharmacy
- “The aging of America”
(2)
- Growing geriatric population
- Increased medical risk patients
HYPERTENSION (HTN)
* New BP guidelines from ACC
* — recordings at separate visits
Two
New Guidelines: Normal
Systolic BP
Diastolic BP
Less than 120
Less than 80
New Guidelines: Elevated BP
Systolic BP
Diastolic BP
120-129
Less than 80
New Guidelines: Hypertension (Stage I)
Systolic BP
Diastolic BP
130-139
80-89
New Guidelines: Hypertension (Stage II)
Systolic BP
Diastolic BP
≥ 140
≥ 90
HYPERTENSION
* Treatments available:
(5)
- Lifestyle modifications for 2-3 months
- Diuretics (Watch for K loss)
- One drug therapy
- Multi-drug therapy (Blood Pressure difficult to treat if have to use more than one med)
HYPERTENSION
* Primary (essential)
(2)
- Greatest % of hypertensive pts
- > 95% idiopathic
HYPERTENSION
* Secondary
- 5% with underlying condition: renal/endocrine disorders
HYPERTENSION
* Risk Factors
- Obesity, Smoking, EtOH, hypercholesterolemia, DM, LVH
Hypertensive URGENCY vs Hypertensive EMERGENCY
* Not all patients with elevated BP need to go to the
Emergency Department
BP —- IS ABSOLUTE CUTOFF VALUE for elective procedures
* Emergency procedures would be case by case basis
> 180 mmHg or DBP > 110 mmHg
HTN Urgency
If BP elevated (can get above 200s systolic and130s diastolic) and patient feels normal →postpone dental treatment
AND go see PCP for evaluation and treatment
HTN Emergency
END ORGAN DAMAGE!! → GET PATIENT TO EMERGENCY DEPARTMENT NOW!!!!
* Headache, fatigue, blurry vision, numbness, chest pain, dyspnea, anuria
* Higher risk for stroke and uncontrolled bleeding
ANTI-HYPERTENSIVES
* Beta Blockers
(3)
- Atenolol, propranolol, metoprolol
ANTI-HYPERTENSIVES
* Ca+ channel blockers
(2)
- Verapamil, Amlodipine
ANTI-HYPERTENSIVES
* ACE-Inhibitors
(2)
- Lisinopril, Captopril
ANTI-HYPERTENSIVES
* Diuretics
(2)
- HCTZ, Furosemide
ISCHEMIC HEART DISEASE
* Decreased oxygenated blood to myocardium
* Due to
narrowing or incomplete blockage of coronary artery(ies)
ISCHEMIC HEART DISEASE
NO — DAMAGE
MYOCARDIAL
ISCHEMIC HEART DISEASE
Rx: (4)
stent, angioplasty, CABG, meds
ISCHEMIC HEART DISEASE
If patient has NO restrictions and NORMAL EKG after above procedure, then patient
can be categorized as
ASA II
PROGRESSION OF IHD
(3)
- Stable Angina
- Unstable Angina
- Myocardial Infarction
ANGINA
* Symptom of IHD due to
discrepancy of myocardial oxygen demand and the ability of the
coronary arteries to supply oxygenated blood
Angina
Causes:
(2)
- Narrowing of coronary arteries (LAD a. = “widow-maker”)
- Spasm of coronary arterial wall (Prinzmetals angina)
Angina
Symptoms:
(3)
- Chest pain w/ radiation
- Nausea, sweating, dyspnea, HTN
- Bradycardia, Impending sense of doom
ANGINA
* Question the patient thoroughly concerning:
(4)
- Precipitating events
- Frequency
- Duration
- Severity
Angina
What alleviates pain?
(2)
- Medication, what?
- Rest
ANGINA
STABLE
(5)
- Pain on exertion
- Infrequent episodes
- One nitro tab controls pain
- ASA III
- Medical Consultation prior to treatment
ANGINA
UNSTABLE
(5)
- Pain at rest
- Frequent episodes
- Increasing nitro for pain relief
- ASA IV
- Likely requires inpatient care
- Stable vs Unstable
- Practitioner’s must differentiate
- Guidelines for management:
(5)
- Have nitro available
- Profound LA
- Cardiac dose of epinephrine (0.04 mg in 30 mins)
- Use supplemental oxygen (N2O/O2)
- Anxiety reduction protocol
CARDIAC DOSE OF EPI
*— mg per 30 mins (in OMS clinic we limit — mg in one appointment)
* 1:1,000 →— mg/mL
* 1:10,000 →— mg/mL
* 1:100,000 →— mg/mL
0.04, 0.04
1
0.1
0.01
In 1.7 mL cartridge, of 1:100,000 epi →0.017 mg epi per cartridge
* 1.7 mL cartridge of 2% lidocaine →– mg lidocaine
* 1% solution →– mg/mL
* 2% solution →– mg/mL
34
10
20
NITROGLYCERIN
* Potent vasodilator:
* Low doses →
* High dose →
reduces myocardial oxygen demand
VENO-dilator
VENO-dilator plus ARTERIO-dilator
NITROGLYCERIN
Dosage:
* — mg metered dose spray (oral/sublingual)
* — mg/tab, bottle of 25, light protected
* Give every 3-5 min, no more than — doses
* Watch the blood pressure!
0.4
0.4
3
ANXIETY REDUCTION PROTOCOL
* Pre-operative
(3)
- Sedative
- AM appts
- Nitro
ANXIETY REDUCTION PROTOCOL
* Intra-operative
(2)
- Non-pharm →VERBAL ASSURANCE
- Pharmacologic →profound LA and Nitrous
ANXIETY REDUCTION PROTOCOL
* Post-operative
(2)
- Analgesics
- Post-operative instructions and reassurance
MANAGEMENT: HISTORY OF MI
* Defer elective procedures for — months after infarction
* Controversy today:
(2)
6
- With advent of neovascularization procedures
- If patient has NO restrictions and NORMAL EKG after above procedure, dental work can resume after 2
months
ALWAYS Consult Cardiologist
* Patient are usually placed on anticoagulants/antiplatelets →drug holiday required?
- Potential problems post-MI:
(3)
- Ventricular fibrillation →due to increased myocardial excitability
- Re-infarction
- CHF
Rate of Re-infarction:
* Within 3 months = —%
* 3-6 months = —%
* After 6 months = —%
28
10
5
WHAT TO DO FOR EMERGENCIES IN PATIENTS
WITH HISTORY OF HEART ATTACK
- Limit Epi (0.04 mg)
- Have Nitro in office and available
- Make certain the patient is taking medications
- More often than should, patients do not take their medications prior to dental treatment
- Monitor blood pressure throughout procedure
- Contact cardiologist that day prior to procedure, if possible
- Reduce anxiety
- Walk patient through procedure
- Reassure constantly
- Change location to hospital setting
HEART FAILURE
* Congestive heart failure is the
failure of the heart as a basic pump
HEART FAILURE
Symptoms:
(5)
- Dyspnea
- Orthopnea
- Paroxysmal nocturnal dyspnea
- Weakness/fatigue
- Extremity edema
RIGHT VENTRICULAR FAILURE
(3)
- Jugular venous distention (JVD)
- Peripheral edema
- Hepatomegaly
LEFT VENTRICULAR FAILURE
(3)
- Pulmonary edema
- Dyspnea
- Paroxysmal nocturnal dyspnea
HEART FAILURE
* If patient has NO symptoms, and is well controlled medically (antihypertensives,
diuretics) the patient is
SAFE for ambulatory outpatient surgery
HEART FAILURE
Take precautions:
(3)
- Supplemental low-flows Oxygen
- Patient UPRIGHT!!!! Position
- Anxiety reduction protocol
STROKE SYMPTOMS
(4)
- NUMBNESS/WEAKNESS of face/arm/leg
- Unilateral
- Trouble walking or loss of balance
- CONFUSION, speaking or understanding
- VISION CHANGES
- SEVERE HEADACHE
TRANSIENT ISCHEMIC ATTACK
(3)
- TIA
- Symptoms < 24 hours
- With return to normal functioning
CEREBROVASCULAR ACCIDENT
(5)
- CVA
- Symptoms > 24 hours
- Limited return to “normal” functioning
- Ischemic (80%)
- Hemorrhagic (20%)
- Ischemic (80%)
(2) - Hemorrhagic (20%)
(2)
- Embolic and Thrombotic
- Aneurysm and/or vascular malformation
STROKE
* Deferral of treatment for — months post-stroke due to increased incidence of recurrence
* Always send medical consultation to
* Call PCP/Neurologist that day for —
* Check medical list:
(2)
* Monitor —
* — reduction
6
PCP/Neurologist regarding elective care
emergent procedures
* Anticoagulants
* Antiplatelets
BP
Anxiety
COPD
(3)
asthma
emphysema
chronic bronchitis
ASTHMA
(3)
- Onset usually early
- Associated with allergens, cold air,
anxiety, exercise - A reversible process
asthma
* First line tx:
- Inhaled short-acting beta agonist
(Albuterol)
COPD
(3)
- Onset usually 4th decade and up
- H/o smoking or chronic respiratory infections
- An irreversible process
COPD
First line tx:
(3)
- Bronchodilators
- β2-adrenergic agonist (Salbutamol, salmeterol)
- Anticholinergic (Ipraropium, tiotropium)
ASTHMA PATIENT MANAGEMENT
* Usual no problems if the patient has GOOD control
* Thorough medical history review:
(4)
- Frequency of attacks
- Hospitalizations from asthma attack
- Intubations from asthma attack
- Current medications
ASTHMA PATIENT MANAGEMENT
(4)
- Anxiety reduction
- Okay to give nitrous oxide
- Keep beta-agonist inhaler (albuterol) at chair side
- Avoid NSAIDs, ASA, PCN in susceptible patients
If STATUS ASTHMATICUS (severe attack not responsive to standard medication)
* Epinephrine:
* Supplemental oxygen:
0.3 mg SubQ Q15 - 20 min x 3 doses
1-3 L/min
EMPHYSEMA
(4)
- Barrel chested
- Exertional dyspnea
- Non-productive cough
- Thin body habitus
BRONCHITIS
(4)
- Cyanotic
- Frequent respiratory infections
- Chronic PRODUCTIVE cough
- Obese body habitus
CHRONIC OBSTRUCTIVE PULMONARY DISEASE
- Easily fatigued
- Frequent respiratory infections
- Use of accessory muscles to breathe
- Chronic cough
- Pursed-lip breathing
- Digital clubbing
- Orthopneic
- Wheezing
- Barrel chested
- Prolonged expiratory time
- Thin appearance
- Increased sputum (bronchitis)
COPD MANAGEMENT
* Avoid respiratory —
* If patient has own oxygen with them, continue
* If patient is not on oxygen, consult physician prior to starting oxygen therapy
* Respiratory drive is a —
* Keep patient inclined, until confident patient can lay — in chair with no dyspnea
* Keep — at chairside
* Closely monitor respiratory and heart rates
* — appointments preferred
depressors (opioids)
same flow rate throughout procedure
HYPOXIC DRIVE (low Oxygen saturation)
supine
bronchodilator
PM
DIABETIC PATIENT
* If not well controlled there are significant potential difficulties in treatment
(4)
- Prone to infection
- Hyperglycemia adversely affects WBC diapedesis and demarginalization
- Delayed in wound healing, possible chronic wound
- Hyperglycemia
- Hypoglycemia
- More problematic if it occurs
DIABETIC PATIENT
* Balancing post-operative caloric intake with their — requirement
* No change in insulin — for local anesthesia
* If NPO (for intravenous sedation)
insulin
pre-operatively
continue normal nighttime dose but decrease AM dose
by 50%
* Alternate: hold AM dose, and half nighttime dose
DIABETIC PATIENT MANAGEMENT
* — appointments best
* Take pre-operative blood — on every diabetic patient
* Long term control of blood glucose determined by —
AM
glucose
Hb A1c
Long term control of blood glucose determined by Hb A1C
* Red Blood Cell’s life span is ~ — days
* Glucose irreversibly binds to — molecule in RBCs
* So the glycated hemoglobin level is a —-month average of blood glucose control
* Want level to be below —%
120
hemoglobin
three
SICKLE CELL DISEASE
* Substituted — for — on Hb molecule
* Hb — converted to Hb —
* Autosomal — inheritance pattern
Valine, Glutamate
A, S
recessive
- Sickle Cell Trait:
- Sickle Cell Anemia:
no treatment modifications
concern is the prevention of acute crises
- Hemolysis of RBCs →
- Splenic sequestration of RBCs →
anemia
splenomegaly, anemia →asplenia
* Increased risk of infection by encapsulated organisms
PREVENTION OF CRISES
* Supplemental Oxygen throughout procedure to prevent —
* Warming blanket to prevent —
* Profound local anesthesia to decrease —
* Adequate fluid intake (PO or IV) to prevent —
* Adequate Post-operative —
* Consultation with PCP regarding — as patients traditionally are already on high dose
— medication daily
* Treat infection aggressively
hypoxia
hypothermia
stress
dehydration
analgesics
narcotics
PATIENTS ON STEROIDS
* Increased risk of complications due to:
- Adrenal suppression and inability to cope with stress
- Inability to vasoconstrict peripheral vasculature, thus can not
respond to stress accordingly - This leads to profound hypotension →LOC
Steroids
Long term side effects:
(4)
- HTN
- DM
- Delayed healing
- Infection
STEROID PATIENT MANAGEMENT
* Do we need to give patient stress dosing of steroids pre-operatively, to prevent this patient from crashing?
DEPENDS ON
(4)
- How invasive is the surgery?
- 20 mg/day of Prednisone equivalent for 3 weeks
- If this dosing for this long, consider stress-dosing
- Usually all dental procedures are minor surgery and do not require pre-operative prophylaxis
THYROID DISEASE
* Defer surgery until thyroid dysfunction is well controlled
* Lab values of note from PCP:
* Thyroid panel →
* If treated and limited control obtained:
(2)
T3, T4, thyroid binding globulin, thyroid stimulating hormone (TSH)
- Limit epi
- Do not give atropine
HYPOTHYROIDISM
* Progressive destruction of thyroid tissue
(3)
- Autoimmune (Hashimoto’s thyroiditis)
- Surgically (removed thyroid tissue to treat hyperthyroidism)
- Medically (lithium, propylthiouracil (PTU), radioactive iodine, methimazole)
HYPOTHYROIDISM
Symptoms:
(5)
- Fatigue, unintended weight gain, cold intolerance, constipation, AMS
Myxedema:
(3)
- Emergency, can be caused by infection, meds, stress
- Altered mental status, seizures, coma, hypotension
- Tx: immediate IV levothyroxine and corticosteroids
HYPERTHYROIDISM
- Increased presence in thyroid stimulating antibodies
- Graves disease
Thyroid storm:
(3)
- Emergency, can be caused by infection, meds, stress
- Fever, tachycardia, tremors, HTN, cardiac arrhythmia, cardiac failure, coma, death
- Tx: beta blockers (propranolol), PTU, or iodine
LIVER DISEASE
* Know the risk factors for liver disease:
(6)
- IV drug use, EtOH, promiscuity, overuse of medications, viral infections, hereditary disorders
LIVER DISEASE
Associated symptoms:
- Jaundice, itching, easy bruising, ascites, gynecomastia, hepatic encephalopathy, spider
telangiectasia, palmar erythema
LIVER DISEASE
Lab values from PCP:
(4)
- Alanine aminotransferase (ALT),
Aspartate Aminotransferase (AST),
coagulation panel,
hepatitis panel with viral load
LIVER DISEASE
* Major implications:
(3)
- Viral contagion of dentist and other patients
- Increased risk of bleeding
- Altered metabolism of drugs
- Can cause toxicity or no effect from drug
LIVER DISEASE
* Strict adherence to
sterile technique
* THIS SHOULD BE DONE FOR ALL PATIENTS NO MATTER IF DISEASED OR NOT DISEASED
- Pre-op tests as mentioned earlier to determine
extend of liver damage as well as infectivity
(viral load)
Liver disease
Avoid drugs primarily excreted in
liver
* May need to discuss post-op pain management with PCP prior to procedures
RENAL INSUFFICIENCY
* Patients can’t
* Be careful with medications with active
* Avoid
excrete normally, thus drug metabolites and filtrate usually excreted
remains in blood serum
metabolites (Demerol, codeine, ASA, valium)
nephrotoxic medications (NSAIDs, Amphotericin B, ACE-Inhib, MTX, acyclovir, B-
lactam antibiotics, etc…)
HEMODIALYSIS
(2)
- Replaces the kidneys as the filtration system in body
- Also can remove excess fluid from system (reducing BP)
HEMODIALYSIS
* Due to tortuosity of dialysis machine, the blood is
* Usually requires dialysis shunt for long term dialysis
* Schedule patient on days — Dialysis
* Heparinized blood, clots —
* Consult PCP concerning —
HEPARINIZED
* Prevents clotting in machine, and then transfer of clot to venous system
AFTER
poorly
antibiotic prophylaxis
ANTICOAGULATION
* Patient on anticoagulation for variety of reasons
* Medical consultation requesting basic coagulation profile
(5)
- PT (10-12 sec) →extrinsic factors
- INR (1) →extrinsic factors
- PTT (60-70 sec) →intrinsic factors
- Platelet count (150k-250k)
- Bleeding time (5-7 min)
ANTICOAGULATION PATIENT MANAGEMENT
* If on Coumadin/Warfarin: INR below — is acceptable to surgery
* INR:
3
International Normalized Ratio
ANTICOAGULATION PATIENT MANAGEMENT
drug holiday (4)
- Medical consultation regarding safety of drug holiday prior to procedures
- Patients may be at too high of risk to stop medication
- Big, full mouth extractions might require drug holiday
- Single teeth, or a couple in one quad may not require drug holiday
ANTICOAGULATION PATIENT MANAGEMENT
* Augment clotting during surgery with use of
* Monitor wound for an — to ensure good initial clot
* Avoid (2)
pro-coagulant substances, sutures, and well
placed pressure packs
hour
NSAIDs and ASA
PREGNANCY
* Elective procedures best to perform after delivery or in
2nd trimester
* 1st trimester fetus formation susceptibility
* 3rd trimester, premature delivery of fetus →not in my office!!!
- Lead apron for radiographs
- Medication adjustments prior to delivery, after delivery,
and related to breastfeeding
PREGNANT PATIENT
* Avoid
* Lay patient on — side if prolonged appointment
* Allow frequent bathroom breaks
teratogenic medications
* Tetracycline, corticosteroids, aminoglycosides
left
* Prevents occlusion of inferior vena cava
FDA DRUG CATEGORIES
* Category A:
* Category B:
* Category C:
* Category D:
no fetal harm
no fetal risk in animal studies, no human studies
* Lidocaine, B-lactam abx, Tylenol, NSAIDs (not in 3rd trimester), short round fentanyl/oxycodone
risk in animal studies but no human studies
* Codeine, hydrocodone, tramadol, mepivicaine, bupivacaine
positive evidence of human fetal risks
* Aspirin, all NSAIDs in 3rd trimester, long term opioid use
LACTATION
SAFE
(7)
- Tylenol
- Antihistamines
- Cephalexin
- Codeine
- Erythromycin
- Fluoride
- Lidocaine
LACTATION
HARMFUL
(6)
- Aspirin
- Atropine
- Steroids
- Valium
- Metronidazole
- PCN