Precordial examination

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In medicine, the precordial exam, also cardiac exam, is performed as part of a physical examination, or when a patient presents with chest pain suggestive of a cardiovascular pathology. In reality it's unlikely that this examination would be performed in isolation or in its entirety outside of a medical examination. It would typically be modified depending on the indication and integrated with other examinations especially the respiratory examination.

Like all medical examinations, the precordial examination follows the standard structure of inspection, palpation and auscultation.

Positioning[edit]

The patient is positioned in the supine position tilted up at 45 degrees if the patient can tolerate this. The head should rest on a pillow and the arms by their sides. The level of the jugular venous pressure (JVP) should only be commented on in this position as flatter or steeper angles lead to artificially elevated or reduced level respectively. Also, left ventricular failure leads to pulmonary edema which increases and may impede breathing if the patient is laid flat.

Lighting should be adjusted so that it is not obscured by the examiner who will approach from the right hand side of the patient as is medical custom.

The torso and neck should be fully exposed and access should be available to the legs.

Inspection[edit]

General Inspection:

  • Inspect the patient status whether he or she is comfortable at rest or obviously short of breath.[1]
  • Inspect the neck for increased jugular venous pressure (JVP)or abnormal waves.[2]
  • Any abnormal movements such as head bobbing.
  • There are specific signs associated with cardiac illness and abnormality however, during inspection any noticed cutaneous sign should be noted.

Inspect the hands for:

Inspect the head for:

Then inspect the precordium for:

  • visible pulsations
  • apex beat
  • masses
  • scars
  • lesions
  • signs of trauma and previous surgery (e.g. median sternotomy)
  • permanent Pace Maker
  • praecordial bulge

Palpation[edit]

The pulses should be palpated, first the radial pulse commenting on rate and rhythm then the brachial pulse commenting on character and finally the carotid pulse again for character. The pulses may be:

  • Bounding as in large pulse pressure found in aortic regurgitation or CO2 retention.
  • And the rhythm should be assessed as regular, regularly irregular or irregularly irregular.
  • Consistency of the strength to assess for Pulsus alternans.
  • Slow rising as found in aortic stenosis known as parvus et tardus
  • Jerky as found in HOCM
  • Pulses can also be auscultated for features like Traube's pistol shot femoral pulse.

Palpation of the precordium[edit]

The valve areas are palpated for abnormal pulsations (palpable heart murmurs known as thrills) and precordial movements (known as heaves). Heaves are best felt with the heel of the hand at the sternal border.

Palpation of the apex beat[edit]

The apex beat is found approximately in the 5th intercostal space in the mid-clavicular line. It can be impalpable for a variety of reasons including obesity, emphysema, effusion and rarely dextrocardia. The apex beat is assessed for size, amplitude, location, impulse and duration. There are specific terms to describe the sensation such as tapping, heaving and thrusting.

Often the apex beat is felt diffusely over a large area, in this case the most inferior and lateral position it can be felt in should be described as well as the location of the largest amplitude.

Finally the sacrum and ankles are checked for pitting edema which is caused by right ventricular in isolation or as part of congestive cardiac failure.

Auscultation[edit]

One should comment on

Completion of examination[edit]

To complete the exam blood pressure should be checked, an ECG recorded, funduscopy performed to assess for Roth spots or papilledema. A full peripheral circulation exam should be performed.

See also[edit]

References[edit]

  1. ^ 250 cases in clinical medicine 3rd edition. R. R. Baliga
  2. ^ 250 cases in clinical medicine 3rd edition. R. R. Baliga

External links[edit]