Cardiovascular Emergencies …time is myocardium!

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Cardiovascular

Emergencies

…time is myocardium!

Statistics

Cardiovascular disease (CVD) claimed over 1 million lives in 2004.

CVD has been the leading cause of death for Americans since 1900.

Sudden cardiac death accounts for over 40% of these deaths.

The majority of our 911 responses are for chest pain.

Controllable Risk Factors

Smoking

High blood pressure

Elevated cholesterol levels

Elevated blood glucose levels

Diet

Lack of exercise

Stress

Uncontrollable Risk Factors

Age

Family history

Race

Sex

Anatomy

Circulation

Blood

Red blood cells:

• Carries oxygen to tissues and cells

• Removes CO2 and waste

White blood cells:

• Fight infection

Platelets:

• Helps blood clot

Electrical System

Coronary Arteries

Cardiac Compromise

Chest pain results from ischemia.

Ischemic heart disease involves decreased blood flow to the heart.

If blood flow is not restored, the tissue dies (infarct).

Injury leads to inadequate heart function and death.

Atherosclerosis

So…

…you are dispatched to a 67 year- old male c/o 9/10 “crushing” chest pressure that radiates to his jaw. He is also complaining of shortness of breath and nausea, with no previous cardiac history…

…w hat are YOU thinking?

Chest Pain Pathophysiology

Mediastinum:

• Angina: stable or unstable

AMI

• Esophagitis, esophageal rupture

• Pericarditis

• Mediastinal air

Thoracic dissection

• Mitral valve prolapse

Chest Pain Pathophysiology

Chest Wall:

• Traumatic contusion/ tamponade

• Cysts and infections

• Rib cartilage inflammation

• Shingles (Herpes Zoster)

• Muscle strain, overuse syndromes

Chest Pain Pathophysiology

Lungs and pleura:

• Pleurisy

• Pneumonia

Pneumothorax, hemothorax

Pulmonary embolus

• Asthma, bronchitis, URI

Chest Pain Pathophysiology

Abdomen:

• Gallbladder (cholecystitis, stones)

• Stomach (gastritis, GERD, perforated peptic ulcer)

• Pancreas (pancreatitis)

• Esophagitis, perforation

Chest Pain

Psychogenic:

• Stress

• Hyperventilation

• Anxiety and panic attacks

Classic Symptoms

Pressure, fullness, heaviness, squeezing pain in center of chest with radiation

Diaphoresis

Nausea

Shortness of breath

Weakness

Frequency of Symptoms

Diaphoresis

Chest pain

Nausea

Shortness of breath

No signs/symptoms

78%

64%

52%

47%

25%

N Engl J Med 1984;311:1144-7

Atypical Presentations

Common in the elderly, diabetics, and females:

• Unusual fatigue

• Sudden onset of unusual shortness of breath

• Nausea, dizziness

• Belching, burping, indigestion

• Palpitations, new dysrhythmia

• Pain only in jaw, neck, back, arm

All chest pain is considered to be an

AMI until proven otherwise!

Angina Pectoris

Chest pain caused when heart tissues do not get enough oxygen for a brief period of time.

Typically crushing or squeezing.

Onset with the 3-

E’s.

Usually resolves with rest or meds.

May be difficult to diagnose from AMI

Angina

Acute Coronary Syndrome

Used to describe the range of conditions from unstable angina to AMI.

Signs and symptoms usually caused by acute myocardial ischemia.

ACS Signs & Symptoms

Shortness of breath

Signs of inadequate perfusion

Chest pain, pressure, or discomfort

(with or without radiation to back, neck, jaw, arm, wrists)

Nausea

Weakness/syncope

Dysrhythmias

Acute Myocardial Infarct

Usually caused by the same mechanism as angina only with resulting tissue death.

Time is myocardium:

Consequences can be serious:

Congestive heart failure

Cardiogenic shock

Sudden death

AMI

Cardiogenic Shock

Heart lacks power to force blood through the circulatory system.

Brought on when 40% of left ventricle is infarcted.

Onset may be immediate or not apparent for 24 hours.

Signs & Symptoms

Altered LOC

Rapid, shallow breathing

Restlessness and anxiousness

Pale, cool skin

Tachycardia/dysrhythmia

Hypotension

Congestive Heart Failure

Occurs when the ventricles are damaged.

Heart tries to compensate with increased heart rate.

Enlarged, ineffective left ventricle

Fluid builds up into lungs or body as

“pump” fails.

CHF

Signs & Symptoms

Fatigue

Cough with pink, frothy sputum

Dypsnea, tachypnea

Pulmonary edema

Agitation and confusion

Hypertension

Pedal edema, ascities

Signs & Symptoms

Thoracic Dissection

Aortic Aneurysm

Signs & Symptoms

Sudden and severe chest or upper back discomfort. “Pain shoots to the shoulder blades.”

Anxiety

Diaphoresis

Nausea

Cardiac Tamponade

Trauma induced, filling of the pericardial sac with blood.

Signs of shock

JVD

Decrease pulse pressures

Esophageal Rupture

Usually underlying alcohol abuse.

Shock signs.

Coughing up bright red blood.

Pericarditis

Inflammation of the pericardium caused by infection.

Usually presents as sharp discomfort.

Changes with breathing and movement.

Chest Pain Assessment

BSI/Scene Safety

Initial Assessment (Sick/Not Sick)

Focused Exam

Detailed Exam

Assessment

Treatment and Plan

Initial Assessment

60second clinical picture to determine if

Sick or Not Sick (Oxygen)

Based upon your initial impression:

– Body position

– skin signs and color

– respiratory rate and effort

– mental status

– pulse rate and character

Correct immediate life threats!

Focused Exam (S)

Your subjective findings are based upon what the patient or historian tells you:

Patient Age

Sex

Chief Complaint

Focused Exam (S)

SAMPLE History

S igns/ S ymptoms (associated with cardiac chest pain):

– Diaphoresis (78%)

– Shortness of Breath (47%)

– Pain/discomfort (64%)

– Nausea/vomiting (52%)

– No signs or symptoms (25%)

N Eng Journal Med 1984;311:11444-7

Focused Exam (S)

O nset

“When and at what time did it start”

P rovocation

“Does anything make it better or worse?”

“Does it change with position, palpitation, inspiration?”

Q uality

“Describe the pain/discomfort in your own words”

Focused Exam (S)

R egion/ R adiation

“Where does it start?”

“Does it radiate anywhere?”

S everity

“On a scale of 1 to 10, what was the pain/discomfort at onset?”

“What is the pain/discomfort at now?’

T ime

“When did this episode start?”

“How long has it been going on?”

Focused Exam (S)

A llergies

M edications

Cardiac meds = cardiac problems.

Ask about OTC meds, natural supplements, vitamins?

P ast Medical History

“Do you have any cardiac history?”

“Risk factors such as smoking, diabetes, HTN, weight/diet?””

Focused Exam (S)

L ast Oral Intake

E vents Leading to Call

“What were you doing when this event started?”

Think activity induce vs. non activity

Listen to the patient…

…they will tell you exactly what is wrong!

Focused Exam (O)

Objective findings from your physical exam of the patient.

Look for evidence of trauma/injury

Evaluate:

– Level of consciousness

– Skin color and temperature

– Respiratory rate and effort

– Pupillary reaction

– Pulse rate

– Blood pressure (bilateral for chest pain!)

Focused Exam (O)

Listen to breath sounds

Palpate chest

Palpate abdomen

Check pedal pulses

BGL if diabetic with DLOC

SpO2 after BP, confirm with pulses, RA & after administration of O2

Rhythm strip?

Focused Exam (O)

Based upon your clinical findings

Observe the patient while they are talking with you, note any distress/discomfort (Levine sign)

Watch for acute clinical signs: jugular vein distension, tracheal deviation, paradoxial chest movement.

Detailed Exam (O)

Complete and thorough neck, head to toe examination with non-critical patients if needed or time permits.

Elicit further information and necessary interventions.

Key in on critical findings!

Assessment (A)

This is your best guess (or rule out) as to what is going on with the patient.

It is based upon YOUR Subjective and

Objective findings and should help you develop and implement your Plan for patient care.

Plan (P)

Medics?

ABC’s/Monitor vitals

Patient in position of comfort.

Oxygen via ?

Assist with medications.

Maintain body temperature.

Calm and reassure.

Minimize patient movement.

Rapid transport!

Other Stuff

Coronary artery bypass graft (CABG) and other open heart surgeries

Percutaneous transluminal coronary angioplasty (PTCA)

Automatic implantable cardiac defibrillators (ACID)

Pacemakers

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