You are on page 1of 4



As outlined by the New York Heart Association, the elements of a complete cardiac diagnosis
include the systematic consideration of the following:
1. The underlying etiology. Is the disease congenital, hypertensive, ischemic, or
inflammatory in origin?
2. The anatomic abnormalities. Which chambers are involved? Are they
hypertrophied, dilated, or both? Which valves are affected? Are they regurgitant
and/or stenotic? Is there pericardial involvement? Has there been a myocardial
3. The physiologic disturbances. Is an arrhythmia present? Is there evidence of
congestive heart failure or of myocardial ischemia?
4. Functional disability. How strenuous is the physical activity required to elicit
symptoms? The classification provided by the New York Heart Association has been
found to be useful in describing functional disability (Table 219-1).
Table 219-1

Class I
No limitation of physical activity
No symptoms with ordinary exertion
Class II
Slight limitation of physical activity
Ordinary activity causes symptoms
Class III
Marked limitation of physical activity
Less than ordinary activity causes symptoms
Asymptomatic at rest
Class IV
Inability to carry out any physical activity without discomfort
Symptoms at rest
Activation of neurohormonal systems in heart failure.
The decreased cardiac output in HF patients results in an "unloading" of high-pressure
baroceptors (circles) in the left ventricle, carotid sinus, and aortic arch. This unloading leads
to the generation of afferent signals to the central nervous system (CNS) that stimulate
cardioregulatory centers in the brain which stimulate the release of arginine vasopression
(AVP) from the posterior pituitary. AVP [or antidiuretic hormone (ADH)] is a powerful
vasoconstrictor that increases the permeability of the renal collecting ducts, leading to the
reabsorption of free water. These afferent signals to the CNS also activate efferent
sympathetic nervous system pathways that innervate the heart, kidney, peripheral vasculature,
and skeletal muscles.

Sympathetic stimulation of the kidney leads to the release of renin, with a resultant increase
in the circulating levels of angiotensin II and aldosterone. The activation of the reninangiotensin-aldosterone system promotes salt and water retention and leads to
vasoconstriction of the peripheral vasculature, myocyte hypertrophy, myocyte cell death, and
myocardial fibrosis. While these neurohormonal mechanisms facilitate short-term adaptation
by maintaining blood pressure, and hence perfusion to vital organs, these same
neurohormonal mechanisms are believed to contribute to end-organ changes in the heart and
the circulation, and to the excessive salt and water retention in advanced HF.

Clinical Manifestations
The cardinal symptoms of HF are fatigue and shortness of breath.
Rapid and shallow breathing are characteristics of cardiac dyspnea.
Dispneu deffort (kriteria minor framingham). Other factors that contribute to dyspnea on
exertion include reductions in pulmonary compliance, increased airway resistance,
respiratory muscle and/or diaphragm fatigue, and anemia.
Orthopnea. Although orthopnea is a relatively specific symptom of HF, it may occur in
patients with abdominal obesity or ascites and in patients with pulmonary disease whose lung
mechanics favor an upright posture.
Paroxysmal Nocturnal Dyspnea. refers to acute episodes of severe shortness of breath and
coughing that generally occur at night and awaken the patient from sleep, usually 13 h after
the patient retires.
Other Symptoms. Patients with HF may also present with gastrointestinal symptoms.
Anorexia, nausea, and early satiety associated with abdominal pain and fullness are frequent
complaints and may be related to edema of the bowel wall and/or a congested liver.
Congestion of the liver and stretching of its capsule may lead to right-upper-quadrant pain.
Cerebral symptoms, such as confusion, disorientation, and sleep and mood disturbances, may
be observed in patients with severe HF, particularly elderly patients with cerebral
arteriosclerosis and reduced cerebral perfusion. Nocturia is common in HF and may
contribute to insomnia.

In mild or moderately severe HF, the patient appears in no distress at rest
Jugular vein > 8 cm
Pulmonary crackles (rales or crepitations) result from the transudation of fluid from the
intravascular space into the alveoli.

If cardiomegaly is present, the point of maximal impulse (PMI) is usually displaced below
the fifth intercostal space and/or lateral to the midclavicular line, and the impulse is palpable
over two interspaces. If cardiomegaly is present, the point of maximal impulse (PMI) is
usually displaced below the fifth intercostal space and/or lateral to the midclavicular line, and
the impulse is palpable over two interspaces.
Hepatomegaly is an important sign in patients with HF. When present, the enlarged liver is
frequently tender and may pulsate during systole if tricuspid regurgitation is present.
Ascites, a late sign, occurs as a consequence of increased pressure in the hepatic veins and the
veins draining the peritoneum.
Jaundice, also a late finding in HF, results from impairment of hepatic function secondary to
hepatic congestion and hepatocellular hypoxia, and is associated with elevations of both
direct and indirect bilirubin.
Peripheral edema is a cardinal manifestation of HF, but it is nonspecific and usually absent in
patients who have been treated adequately with diuretics.

Reseptor Muskarinik (M
) u n t u k memproduksi efek kronotropik negatif, dromotropik dan inotropik.

P e l e p a s a n norepinefrin menyebabkan efek kronotropik positif, dromotropik dan inotropik

secara primer melalui pengaktifan dari reseptor