PubMed Health⌕ Search

Biomedical subjects

Michael Cherington

Publications and source records attributed to Michael Cherington.

10 recordsLinked to original sources
PubMed2005

Spectrum of neurologic complications of lightning injuries.

Lightning is responsible for a wide spectrum of neurologic complications. Many of the persistent symptoms require long-term neurorehabilitation. The lightning-related neurologic conditions are divided into four categories. Category I consists of signs and symptoms that are temporary and usually benign. Category II conditions are prolonged or permanent produced by significant central nervous system lesions. Two of the most devastating complications are lightning-related encephalopathy and myelopathy. The disabilities that accompany these lesions call for concentrated neurorehabilitation. A large number of patients are afflicted with neurobehavioral symptoms that may last for months or years. Category III contains delayed neurologic syndromes. Category IV encompasses neurologic lesions that are not directly activated by the lightning strike but are the result of trauma secondary to falls or blasts effects. The sensible course for individuals at risk is to learn and follow lightning safety recommendations.

Humans↗
PubMed2005

Autonomic nervous system dysfunction in lightning and electrical injuries.

Autonomic nervous system (ANS) dysfunction is a serious complication of lightning and electrical trauma (L/ET). The ANS regulates the normal vegetative functioning of many organ systems. When ANS is compromised after lightning and electric trauma, patients are vulnerable to serious medical problems. Three conditions of ANS dysfunction of particular concern for L/ET patients are complex regional pain syndrome (CRPS), cardiovascular abnormalities, and keraunoparalysis (KP). The patient with CRPS presents with pain, hyperpathia, sweating, and edema hours to days after trauma. Neurorehabilitation is exceedingly important. A primary goal is to keep the affected extremity mobile and functional. Some patients benefit from sympathetic blockade. Cardiovascular abnormalities associated with lightning and electrical trauma can be life threatening. Care for these patients require a multidisciplinary team including a cardiologist. Keraunoparalysis is a frightening and distressing complication of lightning strikes. The syndrome consists of limb paralysis, sensory symptoms, pallor, coolness and absent pulses. Release of excessive catecholamines is said to be responsible for these findings. Fortunately, the condition is transient.

Arrhythmias, Cardiac↗
PubMed2004

Botulism: update and review.

Botulism is both an old and an emerging disease. Over 100 years ago, the classic food-borne type was found to be caused by ingesting contaminated food containing the toxin produced by a bacteria. In the first half of the 20th century a second form, wound botulism, was discovered. Three additional forms (infant, hidden, and inadvertent) were first described in the last quarter of the 20th century. Our understanding of how botulinum toxin blocks the release of acetylcholine at the neuromuscular junction has been clarified in the past 10 years. In the past 20 years, we have witnessed one of the strangest of all ironies in the history of medicine. The very lethal botulinum toxin is now being used as a treatment in an expanding list of disorders. Research is advancing in several directions. These new avenues include improved methods of preventing and treating botulism and additional novel uses of botulinum toxin as a therapeutic agent. In this article, the five clinical forms of botulism, the actions of botulinum toxins, electrodiagnostic methods, treatments, and possible future directions are discussed.

Botulinum Toxins↗