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Purpose: Rectum sheath hematoma (RSH) is a rare and often misdiagnosed disease. We aimed to determine outcomes of patients affected by RSH and identify variables associated with the need of prompt intervention., Methods: Patients diagnosed with RSH during the period 2012-2020 were retrospectively identified. Demographics, diagnostic, and therapeutic variables were evaluated. RSH was classified with computed tomography (CT) according to the Berna system. An artificial neural network (ANN) model including 12 variables was used to identify patients that might require a prompt endovascular or surgical treatment., Results: A total of 20 patients were included for analysis; mean age was 69 (35-98) years and 14 (70%) were females. Iatrogenic injury and forceful contraction of the abdominal wall were the leading causes of RSH. Eleven (55%) patients were anticoagulated or antiaggregated. There were 3 (15%) grade 1, 5 (25%) grade 2, and 12 (60%) grade 3 RSH; 6 (30%) were treated conservatively, 10 (50%) with artery embolization, and 4 (20%) with surgery. Overall morbidity was 45% and there was no mortality in the series. According to the ANN, patients at high risk of requiring an invasive treatment were those with active extravasation on CT angiography, Berna grade III, age ≥ 65 years, hemodynamic instability, chronic use of corticosteroids, hematoma volume ≥ 1000 mL, and/or transfusion of ≥ 4 units of red blood cells., Conclusion: Conservative treatment might be effective in selected patients with RSH. Our artificial neural network analysis might help selecting patients who require endovascular or surgical treatment., (© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany.)

Introduction: Coronavirus disease 2019, COVID-19, as a global public health emergency, has come with a broad spectrum of clinical manifestations and complications. In this study, we present a unique complication of this disease. Presentation of cases: (A) A 65-year-old woman with a known case of COVID-19; on the second day of admission, the patient presented sudden tachycardia and hypogastric pain; on abdomen physical examination, a huge lower abdominal tender mass was noticed. (B) A 50-year-old woman with COVID-19, 4 days after admission, started complaining of tachycardia, pain, and mass in the lower abdomen. On abdomen physical examination, a huge lower abdominal tender mass was noticed. Both of the patients underwent an abdomen CT scan which confirmed a huge rectus sheath hematoma (RSH). Both of the patients underwent angioembolization of the inferior epigastric artery. The patient recovered completely and no evidence of further expansion was seen after 2 weeks of follow-up. Discussion: Hemorrhagic issues in COVID-19 patients remain poorly understood. Physicians should discuss risks of RSH in patients where continuous anticoagulation therapy will be reinstated. With increased clinician awareness of the need for RSH screening in COVID-19 patients with acute abdominal pain, the interprofessional team of healthcare providers can maximize patient safety and reduce hospitalization time, especially in high-risk patients at risk for unnecessary surgery. Conclusions: These two reports and literature review demonstrate the need of active surveillance for possible hemorrhagic complications in patients with COVID-19 infection. [ABSTRACT FROM AUTHOR]

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Objective: Spontaneous intracranial hypotension is a risk factor for cerebral venous thrombosis. The occurrence of cerebral venous thrombosis in patients with spontaneous intracranial hypotension raises difficult practical questions regarding the management of the 2 conditions. We reviewed our experience and the relevant literature to evaluate these related questions. Methods: We retrospectively studied the medical records and imaging studies of patients with spontaneous intracranial hypotension at a tertiary center from January 2007 through January 2017. The main search strategy was a literature review of journal articles in PubMed (1966 to January 2017). Results: Among 374 patients with spontaneous intracranial hypotension, 4 were also diagnosed with cerebral venous thrombosis. A literature review yielded an additional 31 cases, including 21 men and 14 women with a mean age of 40.6 years. Of the 35 patients, 8 (22.8%) patients received anticoagulation therapy and epidural blood patch. Nineteen (54.3%) patients were given anticoagulant only. Seven (20%) patients were treated with epidural blood patch only. One (2.9%) patient did not receive epidural blood patch or anticoagulation therapy. There is no difference in terms of age, sex, diagnosis interval, association with other complications, and prognosis between the first 3 groups. Of the 19 patients who received anticoagulation therapy, 4 patients (21.1%) had intracranial hemorrhage or hematoma enlargement after anticoagulation, and one of these 4 patients died following further intracranial hemorrhage. Of the 8 patients who received both anticoagulation and epidural blood patch, 1 patient (12.5%, P = 0.528) developed subdural hematoma after anticoagulation. Of the 5 cases had intracranial hemorrhage aggravation after anticoagulation, 4 were subdural hematoma occurrence or enlargement. Conclusion: Cerebral venous thrombosis is a rare but important complication of spontaneous intracranial hypotension. The primary focus of treatment should be the treatment of intracranial hypotension. It could be possible that anticoagulation might increase the risk of intracranial hemorrhage in patients with spontaneous intracranial hypotension, although a firm conclusion could not be drawn based on the limited number of patients currently available. The use of anticoagulation therapy should be prudent and should be monitored carefully if initiated. [ABSTRACT FROM AUTHOR]

Rectus sheath hematoma (RSH) is a known complication of anticoagulation therapy and a source of potential morbidity and mortality. Early diagnosis and appropriate treatment may help to prevent complications including hemodynamic instability, the abdominal compartment syndrome or multiorgan dysfunction. Although the diagnosis can be made clinically, it can be confirmed with computed tomography of the abdomen. Most patients can be managed conservatively; however, it is often necessary to suspend anticoagulation in the acute setting. Rectus sheath hematoma is not a contraindication to resuming anticoagulation once the hematoma has been adequately managed and the patient has returned to a stable clinical baseline. [ABSTRACT FROM AUTHOR]

Anticoagulation drugs are frequently used to prevent deep vein thrombosis in high-risk patients. Subcutaneous low molecular weight heparin (LMWH) is increasingly used in both hospitalized patients and outpatient settings. This necessitates familiarity of both health care providers and patients with such treatment and vigilance on possible complications. Here we present a case of hematoma of rectus sheath that occurred following subcutaneous injection of enoxaparin and was successfully treated with conservative management. [ABSTRACT FROM AUTHOR]

Background: Abdominal wall hematomas are an uncommon cause of acute abdominal pain and are often misdiagnosed. They are more common in elderly individuals, particularly in those under anticoagulant therapy. Most abdominal wall hematomas occur in the rectus sheath, and hematomas within the oblique muscle are very rare and are poorly described in the literature. Here we report the case of an oblique muscle hematoma in a middle-aged patient who was not under anticoagulant therapy. Case presentation: A 42-year-old Japanese man presented with a painful, enlarging, lateral abdominal wall mass, which appeared after playing baseball. Abdominal computed tomography and ultrasonography showed a large soft tissue mass located in the patient's left internal oblique muscle. A diagnosis of a lateral oblique muscle hematoma was made and the patient was treated conservatively. Conclusion: Physicians should consider an oblique muscle hematoma during the initial differential diagnosis of pain in the lateral abdominal wall even in the absence of anticoagulant therapy or trauma. [ABSTRACT FROM AUTHOR]