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Splenic infarction and spontaneous rectus sheath hematomas in COVID-19 patient
Jennifer J Dennison1, Samuel Carlson1, Shannon Faehling1
1Medical College of Wisconsin, 1900 Westwood Center Blvd, Unit 3100, Wausau, WI, 54401 USA.
Insights
Coronavirus disease-19 (COVID-19) can cause dangerous blood clots, including rare splenic infarction, even with preventative anticoagulation. This case highlights the complex thrombotic and bleeding risks in COVID-19 patients.
Area of Science:
- Vascular Medicine
- Infectious Diseases
Background:
- Coronavirus disease-19 (COVID-19) is associated with an increased risk of arterial and venous thrombotic events.
- The precise mechanisms driving this hypercoagulable state in COVID-19 remain incompletely understood.
Observation:
- Splenic infarction is a rare complication of COVID-19, often presenting asymptomatically or with non-specific symptoms.
- This case involved a patient with COVID-19 who developed splenic infarction despite prophylactic low-molecular-weight heparin treatment.
Findings:
- The patient also had spontaneous rectus sheath hematoma and mesenteric microhemorrhage/thrombus, indicating a complex coagulopathy.
- Splenic infarction in COVID-19 patients can be challenging to diagnose due to its rarity and variable presentation.
Implications:
- Increased clinical suspicion for splenic infarction is crucial in COVID-19 patients, particularly those with unexplained abdominal symptoms.
- COVID-19 patients face a dual risk of both thrombotic and hemorrhagic complications, complicating anticoagulation management.
- Further research is needed to elucidate the pathophysiology of COVID-19-associated coagulopathy and optimize treatment strategies.
Abstract:
Multiple studies and reports have suggested that coronavirus disease-19 (COVID-19) promotes arterial and venous thrombotic events in multiple organ systems, although the mechanism leading to a hypercoagulable state is still unknown. Few cases of splenic infarction associated with COVID-19 have been reported, of which half were found incidentally upon autopsy. This may be due to a clinically silent presentation or the symptoms being wrongfully attributed to pain caused by the effects of COVID-19. Due to the rarity of the condition and its lack of consistent symptomatology, splenic thromboembolism can be difficult to diagnose. Awareness of the condition and high clinical suspicion will help the clinician identify and manage the problem. Hemorrhage in patients with COVID-19 is uncommon in the hypercoagulable state that threatens thrombus formation in patients with COVID-19 infection. Despite prophylactic treatment with anticoagulation therapies, patients are more prone to developing clots. It is also well-known that therapeutic anticoagulation can place patients at a higher risk of bleeding. Thus, this unique population is at risk of developing both thrombotic and hemorrhagic events. We report a rare case of splenic infarction in a patient with confirmed COVID-19 infection despite prophylactic treatment with low-molecular-weight heparin which was found incidentally during workup for 2 other rare conditions: spontaneous rectus sheath hematoma and microhemorrhage or thrombus of the mesenteric vessels.
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