Cardiovascular from PANCE Pearls Flashcards
What is Angina
Substernal chest pain often brough on by exertion
What causes Angina
CAD
Coronary Artery Spasms
Pulmonary HTN
Hypertrophic Cardiomyopathy
What are risk factors for Angina
DM
Hyperlipidemia
HTN
Smoking
Sx of Angina
Substernal chest pain
May radiate to arm, lower jaw, back, shoulder
Short duration
Dx of Angina
Best non-invasive
Gold Standard
EKG: ST Depression with exertion, T wave inversion
Stress is best non-invasive screening
Coronary Angiograph is Gold Standard and Definitive dx
What is a Cath
Coronary Angiography
Outlines coronary artery anatomy, determines location and extent of CAD
What are indictions for PTCA (Percutaneous Transluminal Coronary Angioplasty) or PCI (Percutaneous Coronary Intervention
Used for 1 or 2 vessel disease not involving main left coronary artery + Normal or near normal left ventricular function
What are indications for CABG (Coronary Artery Bypass Graft)
Left main coronary artery disease
Sx 3 vessel disease
Left Ventricular EF
How does Nitroglycerin work
Increased myocardial blood supply, so increases oxygen and collateral blood flow
Decreases Demand which will reduce cardiac work and decrease preload
How do beta-blockers work
Increases myocardial blood supply
Decreases Demand
1st line drug for chronic management
How do Calcium Channel Blockers work
Increased myocardial blood supply
Decreases Demand
Used in patients not able to use beta-blockers
How does Aspirin work
Prevents platelet activation/aggregation
What is Acute Coronary Syndrome
Symptoms of acute MI due to acute plaque rupture and coronary artery thrombosis
Includes unstable angina, NSTEMI, and STEMI
What causes Acute Coronary Syndrome
Atherosclerosis caused by plaque rupture
Coronary artery vasospasms, usually due to cocaine, Prinzmetal’s variant angina
Sx of Acute Coronary Syndrome
Anginal Pain
Sympathetic stimulation: Anxiety, Diaphoresis, Tachycardia, N/V, Palpitations, Dizziness
Silent MI: atypical sx such a abdominal pain, dyspnea without chest pain
Dx of Acute Coronary Syndrome
EKG
Unstable Angina and NSTEMI: T wave inversion/ST Depression
STEMI: ST elevations
What does the location of Q waves or ST elevation tell you about where the MI occured
V1-V4: Anterior. Involves Left Anterior Descending
I, aVL, V5, V6: Lateral. Involves Cirucumfelx
I, aVL, V4, V5, V6: Anterolateral. Involves LAD or CFX
II, III, aVF: Inferior. Involves Right Coronary Artery
ST DEPRESSION in V1-V2: Posterior. Involves RCA, CFX
What are 2 main cardiac markers and what does the timing of their apperace mean
CK/CK-B: Peaks 12-24 hours, Baseline at 3-4 days
Troponin: Peaks 12-24 hours, Baseline 7-10 days
What is Prinzmetal’s Angina
Coronary Spasm that leads to transient ST elevations
Sx of Prinzmetal’s Angina
Ches pain at rest, usually in the mornings with hyperventilation, emotional stress or cold exposure. Not usually due to exertion
Dx of Prinzmetal’s Angina
EKG: Transient ST elevations (usually resolve wth CCB and NTG)
Angiography: No fixed stenosis seen
Tx of Prinzemtal’s Angina
CCB, NTG as needed
What is Heart Failure
Inability of the heart to pump sufficient blood to meet the metabolic deamns of the body at normal filling pressures
What causes Heart Failure
CAD
What causes Left sided HF
CAD and HTN
What causes Right sided HF
Left sided HF
Pulmonary disease
What is the pathophysiology behind CHF
An insult leads to increased afterload, increased preload, decreased contractility
Injured heart tries to make short term compensation tha promotes cardiovascular deterioration
Sympathetic nervous system is activated, myocyte hypertrophy/remodeling, RAAS activation, fluid overload, ventricular remodeling
Sx of Left Sided HF
Increased venous pressure from fluid backing up into lungs
Dyspnea, Orthopnea, Paroxysmal Nocturnal Dyspnea
Pulmonary Cognestion: Rales, Rhonchi, pink frothy sputum
HTN, Cheyne Stoke’s
Dusky pale skin, Diaphoresis
Sx of Right sided HF
Increased systemic venous pressure, see signs of systemic fluid retention
Peripheral Edema
Jugular Venous Distention
Anorexia, N/V, Hepatosplenomegaly, RUQ tenderness, Hepatojugular Reflex
Dx of CHF
Echo: Can test Ejection Fraction
CXR: Cephalization of flow, Kerley B lines, butterfly pattern, Cardiomegaly, Pleural Effusions
Increased BNP (Ventricles release BNP during volume overload)
Tx of CHF
Ace-Inhibitors: 1st line. Decreased mortality
Beta-Blockers: Decreased mortality
Diuretics: Treats sx
Digoxin: Treats sx
What are the meds that decreased mortality in CHF
Ace-I, ARB, Beta-Blocker, Nitrates, Some Diuretics (Hydralazine, Spironolactone)
What it the outpatient tx for CHF
Ace-I + Diuretic, eventually add Beta-Blocker
Implantable Cardioverter Defibrillator if EF
Hospital management of CHF
LMNOP
Lasix, Morphine, Nitrates, Oxygen, Position
What is Hypertensive Urgency
BP of 220/120 without end organ damage
Tx of Hypertensive Urgency
Reduced BP by 25% in first 24-48 hours using oral agents
What is Hypertensive Emergency
BP of 220/120 with acute end-organ damage
Encephalopathy, hemorrhage, Acute Coronary Syndrome, HF, Aortic Dissection, AKI, Proteinuria
Tx of Hypertensive Emergency
Reduce BP by 10% in the first hour then another 15% the next 2-3 hours using IV agents
What is Peripheral Arterial Disease
Atherosclerosis of the lower extremities
Sx of Peripheral Artery Disease
Intermittent Claudication: Pain/Discomfort with exercise/walking and relieved with rest
Resting leg pain (advanced disease)
Acute Arterial Embolism: Parasthesias, Pain, Pallor, Pulselessness, Paralysis, Poikilothermia, Livedo Reticularis (mottling with arteriolar occlusion)
Gangrene, Ulcers
What will you see on physical exam with Peripheral Artery Disease
Decreased or absent pulses, Bruits
Atrophic skin chanes (thin, shiny skin, hair loss, thickened nails)
Pale on elevation, dusky red with dependency
LATERAL malleolar Ulcers
Dx of Peripheral Artery Disease
Screening
Gold Standard
Ankle-Brachial Index is most useful screening
Angiography: Gold standard
Duplex Ultrasound
Tx of Peripheral Artery Disease
Platelet Inhibitors: Cilostazol, ASA, Plavix
Revascularization: PTA, Bypass grafts, Endarterectomy
Supportive: Foot care, Exercise
Amputation if severe/grangrene
What is an Abdominal Aortic Aneurysm
Focal dilation of aortic diameter at least 1-1.5 times diamter measured at level of renal arteries
>3.0cm is considered aneurysmal
Usually occurs Infrarenally
What are risk factors for Anuerysms
Atherosclerosis Age >60yrs Smoking Caucasian Males Hyperlipidemia, DM, Marfan's
Sx of Aneurysm
Most are asymptomatic an are incidental findings
Acute Leakage is rapidly fatal
Severe back or abdominal pain, syncope, Hypotension, Pulsatile abdominal mass, Flank Ecchymosis
Ripping chest pain = Thoracic Dissection
Dx of Aneurysm
Initial test
Gold Standard
Ultrasound is first test
CT is test of choice for thoracic
Angiogram is gold standard
MRI/MRA
Tx of Aneurysm
3-4cm: Monitor via ultrasound every year
4-4.5cm: Monitor via ultrasound every 6 months
>4.5cm: Vascular Surgeon Referral
>5.5cm: Immediate surgical repair
What is an Aortic Dissection
A tear in the innermost layer of aorta (Intima)
What leads to an Aortic Dissection
Intimal wall tear leads to propagation of tear
Risk factors for Aortic Dissection
HTN, Age, Vasculitis, Trauma, Collagen Disorders
Sx of Aortic Dissection
Sudden onset of severe, tearing chest/back pain
Variation in pulses between left and right arm
HTN
New Aortic Regurgitation
Dx of Aortic Dissection
Gold Standard
CXR: Wide mediastinum
CT scan with contrast
MRI Aniography is Gold Standard
Trans Esophageal Echocardiography
Tx of Aortic Dissection
If in ascending: Surgery
If descending: Medical management with Labetalol
What is Giant Cell Arteritis
A vasculitis
What should you associate with Giant Cell Arteritis
Polymyalgia Rheumatica
Sx of Giant Cell Arteritis
New onset, unilateral tempral headache
Jaw Claudication with Mastication
Acute Vision changes (if not treated will lead to blindness!)
Fatigue, weight loss, anorexia, fevers, night sweats
Dx of Giant Cell Arteritis
Increased ESR, Increased CRP
Temporal Artery Biopsy: See Mononuclear Lymphocyte Infiltration, Ultinucleated Giant Cells
Tx of Giant Cell Arteritis
High Dose Corticosteroids: 40-60mg/day x6 weeks
Methotrexate and Azathioprine
What is Superficial Thrombophlebitis
Inflammation of superficial vein and or thrombus
Associated with IV cath, Trauma, pregnancy, varicose veins
Sx of Superficial Thrombophlebitis
Local Phlebitis: Tenderness, pain, induration, edema, erythema along coure of superficial vein
Dx of Superficial Thrombophlebitis
Venous Duplex Ultrasound: Noncompressible vein with clot and vein wall thickening
Tx of Superficial Thrombophlebitis
Supportive: Elevation, Warm Compress, NSAIDS, compression Stockings
If Aseptic: NSAIDS, Heparin, Warfarin
Septic: IV Abx (Penicillin + Aminoglycosides)
Phelebectomy if extensive
What is a Deep Venous Thrombosis
Most important consequence of PE
What are risk factors for DVT
Vrichow’s Triad: Venous Stasis, Endothelial Damage, Hypercoagulability
Sx of DVT
Unilateral swelling/edema of lower extremity
Calf Pain/Tenderness
Homan’s Sign: Calf Pain with dorsiflexion while knee is flexed
Phlebitis: Local warmth, erythema, palpable cord
Dx of DVT
Venous Duplex Ultrasound: 1st line
D-Dimer: Negative r/o DVT, Positive need more workup
Venography: Gold Standard
Tx of DVT
Anticoagulation: UF Heparin, LMW Heparin, Warfarin
IVC Filter
What are Varicose Veins
Dilated, Tortuous Superficial Veins secondary to defective valve structure and function of superficial veisn
Sx of Varicose Veins
Often asymptomatic but cause cosmetic damage
Dull ache or pressure sensation worse with prolonged standing and relieved with elevation
VENOUS STASIS ULCERS: Severe varicosities resulting in skin ulceration
Tx of Varicose Veins
Conservative: Elevation, Compression Stockings, Avoid Prolonged Standing
Sclerotherapy, Radiofrequency or laser ablation
What is Chronic Venous Insufficiency
Vascular incompetency of either deep and or superficial veins
Sx of Chronic Venous Insufficiency
Leg pain: Burning, Aching, Throbbing
Pain worse with prolonged standing/sitting
Improves with leg elevation or walking
Leg edema, Stasis Dermatitis
Brownish Hyperpigmentation
Venous stasis ulcers are usually MEDIAL MALLEOLUS
Dx of Chronic Venous Insufficiency
Ankle/Brachial Index
Trandelenburg Test: Slow filling at ankle suggests perforator competency
Ultrasound
Tx of Chronic Venous Insufficiency
Elevation, Compression Stockings
Ulcer Treatment: Wet to dry dressings, skin grafting, hyperbaric oxygen if severe, control edema
Venous valve transplant