Barbiturates: Uses, side effects, and risks
Barbiturates Description A barbiturate is a drug that acts as a central nervous system depressant, and can therefore produce a wide spectrum of effects, from mild sedation to total anesthesia. They are also effective as anxiolytics, hypnotics, and anticonvulsants. Barbiturates have addiction potential, both physical and psychological. They have largely been replaced by benzodiazepines in […]
Bannayan Riley Ruvalcaba Syndrome
Bannayan Riley Ruvalcaba Syndrome Bannayan-Riley-Ruvalcaba syndrome is a genetic condition characterized by a large head size (macrocephaly), multiple noncancerous tumors and tumor-like growths called hamartomas, and dark freckles on the penis in males. The signs and symptoms of Bannayan-Riley-Ruvalcaba syndrome are present from birth or become apparent in early childhood. At least half of affected […]
What Is Arteritis?
About Arteritis Takayasu’s arteritis (also known as Takayasu’s disease, “aortic arch syndrome,” “nonspecific aortoarteritis,” and “pulseless disease”841) is a form of large vessel granulomatous vasculitis with massive intimal fibrosis and vascular narrowing, most commonly affecting often young or middle-age women of Asian descent, though anyone can be affected. It mainly affects the aorta (the main […]
Bancroftian Filariasis
Bancroftian Filariasis Wuchereria bancrofti is a human parasitic roundworm that is the major cause of lymphatic filariasis. It is one of the three parasitic worms, together with Brugia malayi and B. timori, that infect the lymphatic system to cause lymphatic filariasis. These filarial worms are spread by a variety of mosquito vector species. W. bancrofti […]
Baller Gerold Syndrome
Baller Gerold Syndrome Baller-Gerold syndrome is a rare condition characterized by the premature fusion of certain skull bones (craniosynostosis) and abnormalities of bones in the arms and hands, sometimes referred to as radial ray anomalies. Many cases of Baller-Gerold syndrome are caused by mutations in the RECQL4 gene. These cases are inherited in an autosomal […]
About Baillarger’s Syndrome
Introduction Frey’s syndrome (also known as Baillarger’s syndrome, Dupuy’s syndrome, auriculotemporal syndrome, or Frey-Baillarger syndrome) is a rare neurological disorder resulting from damage to or near the parotid glands responsible for making saliva, and from damage to the auriculotemporal nerve often from surgery. The symptoms of Frey’s syndrome are redness and sweating on the cheek […]
Acute Respiratory Distress Syndrome (ARDS)
ARDS Acute respiratory distress syndrome (ARDS) is a medical condition occurring in critically ill or critically wounded patients characterized by widespread inflammation in the lungs. ARDS is not a particular disease; rather, it is a clinical phenotype which may be triggered by various pathologies such as trauma, pneumonia and sepsis. The hallmark of ARDS is […]
About Arbovirus A Chikungunya Type
Arbovirus A Chikungunya Type Chikungunya fever is an acute febrile illness associated with severe, often debilitating polyarthralgias. The disease is caused by Chikungunya virus (CHIKV), an arthropod-borne virus that is transmitted to humans primarily via the bite of an infected mosquito. Since a re-emergence of CHIKV in 2004, the virus has spread into novel locations, […]
What Is Arsenic?
About Arsenic Arsenic is a chemical element with symbol As and atomic number 33. Arsenic occurs in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal. Arsenic is a metalloid. It has various allotropes, but only the gray form is important to industry. The primary use of metallic […]
What Is Arachnoiditis Symptoms, Causes and More
What is arachnoiditis? Arachnoiditis is a pain disorder caused by the inflammation of the arachnoid, one of the membranes that surrounds and protects the nerves of the spinal cord. It is characterized by severe stinging, burning pain, and neurological problems. Arachnoiditis is an inflammatory condition of the arachnoid mater or ‘arachnoid’, one of the membranes […]
What is Arachnoid Cysts?
What is Arachnoid Cysts? Arachnoid cysts are cerebrospinal fluid covered by arachnoidal cells and collagen that may develop between the surface of the brain and the cranial base or on the arachnoid membrane, one of the three meningeal layers that cover the brain and the spinal cord. Arachnoid cysts are a congenital disorder, and most […]
What Is Arrhythmia?
What Is Arrhythmia? An arrhythmia is a problem with the rate or rhythm of your heartbeat. It means that your heart beats too quickly, too slowly, or with an irregular pattern. When the heart beats faster than normal, it is called tachycardia. When the heart beats too slowly, it is called bradycardia. The most common […]