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Items: 8

1.

Malignant hyperthermia susceptibility

Malignant hyperthermia susceptibility (MHS) is a pharmacogenetic disorder of skeletal muscle calcium regulation associated with uncontrolled skeletal muscle hypermetabolism. Manifestations of malignant hyperthermia (MH) are precipitated by certain volatile anesthetics (i.e., halothane, isoflurane, sevoflurane, desflurane, enflurane), either alone or in conjunction with a depolarizing muscle relaxant (specifically, succinylcholine). The triggering substances release calcium stores from the sarcoplasmic reticulum and may promote entry of calcium from the myoplasm, causing contracture of skeletal muscles, glycogenolysis, and increased cellular metabolism, resulting in production of heat and excess lactate. Affected individuals experience: acidosis, hypercapnia, tachycardia, hyperthermia, muscle rigidity, compartment syndrome, rhabdomyolysis with subsequent increase in serum creatine kinase (CK) concentration, hyperkalemia with a risk for cardiac arrhythmia or even arrest, and myoglobinuria with a risk for renal failure. In nearly all cases, the first manifestations of MH (tachycardia and tachypnea) occur in the operating room; however, MH may also occur in the early postoperative period. There is mounting evidence that some affected individuals will also develop MH with exercise and/or on exposure to hot environments. Without proper and prompt treatment with dantrolene sodium, mortality is extremely high. [from GeneReviews]

MedGen UID:
9867
Concept ID:
C0024591
Disease or Syndrome
2.

Malignant hyperthermia

Malignant hyperthermia is characterized by a rapid increase in temperature to 39-42 degrees C in response to inhalational anesthetics such as halothane or to muscle relaxants such as succinylcholine. [from HPO]

MedGen UID:
505071
Concept ID:
CN001851
Finding
3.

Fever

A fever is a body temperature that is higher than normal. It is not an illness. It is part of your body's defense against infection. Most bacteria and viruses that cause infections do well at the body's normal temperature (98.6 F). A slight fever can make it harder for them to survive. Fever also activates your body's immune system. Infections cause most fevers. There can be many other causes, including. - Medicines. - Heat exhaustion. - Cancers. - Autoimmune diseases. Treatment depends on the cause of your fever. Your health care provider may recommend using over-the-counter medicines such as acetaminophen or ibuprofen to lower a very high fever. Adults can also take aspirin, but children with fevers should not take aspirin. It is also important to drink enough liquids to prevent dehydration.  [from MedlinePlus]

MedGen UID:
5169
Concept ID:
C0015967
Finding
4.

Hemorrhagic disease due to alpha-1-antitrypsin Pittsburgh mutation

MedGen UID:
798754
Concept ID:
CN200394
Disease or Syndrome
5.

Myopathy

Your muscles help you move and help your body work. Different types of muscles have different jobs. There are many problems that can affect muscles. Muscle disorders can cause weakness, pain or even paralysis. . Causes of muscle disorders include. -Injury or overuse, such as sprains or strains, cramps or tendinitis . -A genetic disorder, such as muscular dystrophy. -Some cancers. -Inflammation, such as myositis. -Diseases of nerves that affect muscles. -Infections. -Certain medicines. Sometimes the cause is not known.  [from MedlinePlus]

MedGen UID:
10135
Concept ID:
C0026848
Disease or Syndrome
6.

Hypertonia

A condition in which there is increased muscle tone so that arms or legs, for example, are stiff and difficult to move. [from HPO]

MedGen UID:
10132
Concept ID:
C0026826
Finding; Finding
7.

Rigidity

Continuous involuntary sustained muscle contraction. When an affected muscle is passively stretched, the degree of resistance remains constant regardless of the rate at which the muscle is stretched. This feature helps to distinguish rigidity from muscle spasticity. [from HPO]

MedGen UID:
7752
Concept ID:
C0026837
Sign or Symptom
8.

Cogwheel rigidity

A type of rigidity in which a muscle responds with cogwheellike jerks to the use of constant force in bending the limb (i.e., it gives way in little, repeated jerks when the muscle is passively stretched). [from HPO]

MedGen UID:
57469
Concept ID:
C0151564
Sign or Symptom
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