Ludwig’s Angina

Ludwig’s Angina Definition and Causes: A rapidly spreading cellulitis of the floor of the mouth that can be produced by any infection. It involves the submandibular, sublingual, and submental spaces. -Gram-positive cocci (usually streptococci), Staphylococcus aureus, and Staphylococcus epidermidis are now the most common organisms, but sometimes gram-negative rods or anaerobes...

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Chiari Malformations

 Chiari Malformations -The Chiari malformation is a term encompassing a range of hindbrain maldevelopments. -Problems include underdevelopment of the cranial fossa and overcrowding of the normally developed hindbrain, the risks of descent of hindbrain structures below the foramen magnum, and intermittent obstruction to CSF outflow from the fourth ventricle. -There...

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Budd–Chiari Syndrome

 Budd–Chiari Syndrome -A syndrome caused by obstruction to the hepatic venous outflow and resulting in a clinical picture of hepatomegaly and portal hypertension. It may be secondary to hematological disorders, malignancy, oral contraceptives, heart failure, or constrictive pericarditis. -The three main sites of obstruction are:1-Inferior vena cava2-Large hepatic veins3-Small intrahepatic...

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Tachycardia during Anesthesia

Tachycardia during Anesthesia Definition: -Pulse rate greater than 100 beats/min. in adults Causes and Management: 1-Light anesthesia, Pain: -Hypertension, sweating, lacrimation, reactive pupils, movement  Treatment: Deepening the anesthesia, Analgesia  2-Drug induced: -Anticholinergic drugs, Catecholamines, Oxytocin  3-Hypovolemia: -Actual...

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Bradycardia during Anesthesia

Bradycardia during Anesthesia Definition:-Pulse rate less than 60 beats/min. in adults -Pulse rate less than 80 beats/min. in infants -Pulse rate less than 100 beats/min. in neonates Causes and Management: 1-Hypoxia:-Late response is bradycardia Treatment: -Of the cause, Oxygenation, Anticholinergics 2-Drug induced:-High-concentration volatile anesthetics, Opioids,...

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Esophageal Achalasia

Esophageal Achalasia Definition: A chronic, progressive motor disorder of the esophagus associated with degenerative changes in the myenteric ganglia and vagal nuclei.Components: There are three components: 1-Failure of the lower esophageal sphincter to relax, with an increased resting sphincter pressure, which together results in a functional obstruction 2-Absence of...

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Fat Embolism Syndrome (FES)

Fat Embolism Syndrome (FES) ➧ Fat embolism can be difficult to diagnose. It most often follows a closed fracture of a long bone but there are many other causes. Epidemiology: ➧ Incidence of this complication ranges from 0.5 to 11% in different studies. It varies considerably according to the cause. Patients with fractures involving the middle and proximal parts of the...

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Porphyric Crisis

Porphyric Crisis (Acute Neurovisceral Crisis)  Background:  -The porphyrias are caused by enzyme deficiencies in the heme production pathway. Such deficiencies may be due to inborn errors of metabolism or exposure to environmental toxins or infectious agents. -The disease was named porphyria due to the red discoloration of urine in affected patients, (Figure...

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Treacher Collins Syndrome

Treacher Collins Syndrome: -A craniofacial defect associated with developmental anomalies of the first arch.  -Abnormalities vary from minimal, to complete syndrome.  -The syndrome is named after Edward Treacher Collins, an English surgeon and ophthalmologist, who described its essential traits in 1900.  -Patients may require anesthesia for...

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