Disease-related malnutrition can be considered in four categories
problems of weight loss associated with specific diseases are:
As
advanced chronic pulmonary disease (COPD) obstructive pulmonary
disease, approximately 35% of patients suffer severe weight loss called
cachexia lung, including a decrease in muscle mass. About 25% experience moderate to severe weight loss, and most others have some weight loss. Top weight loss is associated with a poor prognosis. Theories
of contributing factors include loss of appetite associated with
reduced activity, the additional energy required for breathing, and
difficulty eating with dyspnea (difficulty breathing).
Cancer, a very common cause and unexplained weight loss sometimes fatal (idiopathic). Approximately one third of cases of unintentional weight loss are secondary to malignancy. Cancers
to suspect in patients with unexplained weight loss include
gastrointestinal, prostate, hepatobillary (hepatocellular carcinoma,
pancreatic cancer), ovarian, hematologic malignancies or lung.
AIDS can cause weight loss and should be suspected in high-risk individuals who have weight loss.
Gastrointestinal
disorders are another common cause of weight loss for no apparent
reason - in fact, are the most common weight loss idiopathic
non-malignant. Possible
gastrointestinal etiologies of unexplained weight loss are celiac
disease, peptic ulcer, inflammatory bowel disease (Crohn's disease and
ulcerative colitis), pancreatitis, gastritis, diarrhea and other
disorders gastrointestinal can cause weight loss.
Infections. Some infectious diseases can cause weight loss. These
include fungal illness, endocarditis, many parasitic diseases, AIDS,
and other sub-acute or latent infections can cause weight loss.
Kidney disease. Patients with uremia often have poor or absent appetite, vomiting and nausea. This can lead to weight loss.
Heart disease. Cardiovascular disease, especially congestive heart failure, can cause unexplained weight loss failure.
Connective tissue disease
Neurological diseases such as dementia
Stress can cause weight loss. However, recent research (Jastebott, Potenza et al. 2010) shows a correlation between obesity and high stress
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