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Arrhythmias are disturbances in the heart's rhythm that lead to abnormal heartbeats. These irregularities can originate from different parts of the heart and are classified based on their origin and nature.
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Sinus Node Arrhythmias
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Venous thrombosis, the most common disorder of the veins, involves the formation of a thrombus or blood clot associated with vein inflammation. It can be classified as either superficial vein thrombosis or deep vein thrombosis.Superficial Vein Thrombosis: This involves the formation of a thrombus in a superficial vein, usually the greater or lesser saphenous vein. Though less severe than deep vein thrombosis (DVT), SVT can lead to complications if untreated.Deep Vein Thrombosis (DVT): This...
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Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...
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Nursing management begins with a thorough assessment of the patient's health history. Key factors include trauma to veins, peripherally inserted central catheters, varicose veins, recent pregnancy or childbirth, surgery, bacteremia, prolonged bed rest, atrial fibrillation, COPD, heart failure, cancer, coagulation disorders, myocardial infarction, spinal cord injury, stroke, prolonged travel, recent bone fractures, and dehydration. Review medication intake, particularly oral contraceptives,...
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Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies01:20

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The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...
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Anatomy of the Heart01:27

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The human heart is made up of three layers of tissue that are surrounded by the pericardium, a membrane that protects and confines the heart. The outermost layer, closest to the pericardium, is the epicardium. The pericardial cavity separates the pericardium from the epicardium. Beneath the epicardium is the myocardium, the middle layer, and the endocardium, the innermost layer. There are four chambers of the heart: the right atrium, the right ventricle, the left atrium, and the left ventricle.
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Quantitative Analysis and Characterization of Atherosclerotic Lesions in the Murine Aortic Sinus
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Cavernous sinus thrombosis due to ipsilateral sphenoid sinusitis.

Christodoulos Dolapsakis1, Eleftheria Kranidioti1, Sofia Katsila1

  • 13rd Department of Medicine, Evaggelismos General Hospital, Athens, Greece.

BMJ Case Reports
|February 1, 2019
PubMed
Summary

A rare case of cavernous sinus thrombosis (CST) due to sphenoid sinusitis presented with facial palsy. Despite treatment, the patient experienced a fatal subarachnoid hemorrhage, highlighting diagnostic challenges and anticoagulation uncertainties.

Keywords:
cranial nervesear, nose and throat/otolaryngologyinfection (neurology)neuroimaging

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Area of Science:

  • Neurology
  • Infectious Diseases
  • Otolaryngology

Background:

  • Cavernous sinus thrombosis (CST) is a rare but serious condition often originating from infections in the head and neck region.
  • Sphenoid sinusitis is an increasingly recognized infectious source for CST, posing diagnostic challenges due to its deep anatomical location.

Observation:

  • A diabetic patient in her late 70s presented with septic thrombosis of the right cavernous sinus secondary to ipsilateral sphenoid sinusitis.
  • The diagnosis was delayed, with the patient exhibiting rare symptoms such as peripheral facial palsy alongside typical CST manifestations.
  • Anticoagulation with enoxaparin was initiated, followed by a planned sphenoid sinus drainage.

Findings:

  • The patient developed a fatal subarachnoid hemorrhage 24 hours after starting anticoagulation and shortly before planned surgical intervention.
  • This case highlights the diagnostic difficulties associated with acute sphenoid sinusitis as a precursor to CST.
  • The management of infectious CST, particularly the role and timing of anticoagulation, remains uncertain.

Implications:

  • Emphasizes the need for heightened clinical suspicion and prompt diagnosis of sphenoid sinusitis to prevent CST.
  • Underscores the critical need for further research into optimal anticoagulation strategies for infectious cerebral sinus thrombosis.
  • Suggests that early surgical intervention might be crucial in managing sphenoid sinusitis complicated by CST.