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van Twist DJL, Appelboom Y, Magro-Checa C, Haagmans M, Riedl R, Yazar O, Bouwman LH, Mostard GJM. Differentiating between segmental arterial mediolysis and other arterial vasculopathies to establish an early diagnosis - a systematic literature review and proposal of new diagnostic criteria. Postgrad Med 2024; 136:1-13. [PMID: 37998079 DOI: 10.1080/00325481.2023.2288561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 11/23/2023] [Indexed: 11/25/2023]
Abstract
Segmental arterial mediolysis (SAM) is a rare vascular disease, characterized by acute but transient vulnerability of the wall of medium-sized arteries. The most characteristic feature of SAM is its biphasic course: an injurious phase marked by acute weakness of the arterial wall leading to acute dissection and/or hemorrhage, followed by a reparative phase in which granulation tissue and fibrosis restore the injured arterial wall. Residual stenosis, aneurysms, and/or arterial wall irregularities may remain visible on future imaging studies. Differentiating between SAM and other arterial vasculopathies is difficult due to its similarities with many other vascular diseases, such as vasculitis, fibromuscular dysplasia, inherited connective tissue disorders, and isolated visceral artery dissection. In this systematic review, we provide an overview on SAM, with an emphasis on the differential diagnosis and diagnostic work-up. We propose new diagnostic criteria to help establish a prompt diagnosis of SAM, illustrated by case examples from our multidisciplinary vascular clinic.
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Affiliation(s)
- Daan J L van Twist
- Department of Internal Medicine, Zuyderland Medical Centre, Sittard/Heerlen, The Netherlands
| | - Y Appelboom
- Department of Internal Medicine, Zuyderland Medical Centre, Sittard/Heerlen, The Netherlands
| | - Cesar Magro-Checa
- Department of Rheumatology, Zuyderland Medical Centre, Sittard/Heerlen, The Netherlands
| | - Mark Haagmans
- Department of Radiology, Zuyderland Medical Centre, Sittard/Heerlen, The Netherlands
| | - Robert Riedl
- Department of Pathology, Zuyderland Medical Centre, Sittard/Heerlen, The Netherlands
| | - Ozan Yazar
- Department of Vascular Surgery, Zuyderland Medical Centre, Sittard/Heerlen, The Netherlands
| | - Lee H Bouwman
- Department of Vascular Surgery, Zuyderland Medical Centre, Sittard/Heerlen, The Netherlands
| | - Guy J M Mostard
- Department of Internal Medicine, Zuyderland Medical Centre, Sittard/Heerlen, The Netherlands
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2
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Matsuura C, Fuchinoue Y, Terazono S, Kondo K, Harada N, Sugo N. Intraperitoneal hemorrhage due to segmental arterial mediolysis associated with cerebral vasospasm after subarachnoid hemorrhage. Clin Case Rep 2022; 10:e6371. [PMID: 36188053 PMCID: PMC9487451 DOI: 10.1002/ccr3.6371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/03/2022] [Accepted: 09/08/2022] [Indexed: 11/08/2022] Open
Abstract
A man in his 50s with no significant past medical history developed subarachnoid hemorrhage due to ruptured left middle cerebral artery aneurysm. On the ninth hospital day, he had a ruptured visceral aneurysm with segmental arterial mediolysis, and we successfully treated with transarterial embolization using metallic coils.
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Affiliation(s)
- Chie Matsuura
- Department of NeurosurgeryToho University Omori Medical CenterTokyoJapan
| | - Yutaka Fuchinoue
- Department of NeurosurgeryToho University Omori Medical CenterTokyoJapan
| | - Sayaka Terazono
- Department of NeurosurgeryToho University Omori Medical CenterTokyoJapan
| | - Kosuke Kondo
- Department of NeurosurgeryToho University Omori Medical CenterTokyoJapan
| | - Naoyuki Harada
- Department of NeurosurgeryToho University Omori Medical CenterTokyoJapan
| | - Nobuo Sugo
- Department of NeurosurgeryToho University Omori Medical CenterTokyoJapan
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Tao Y, Matsubara S, Yagi K, Kinoshita K, Fukunaga T, Yamamoto A, Uno M. Intra-abdominal hemorrhage due to segmental arterial mediolysis of an ovarian artery pseudoaneurysm and concomitant aneurysmal subarachnoid hemorrhage: illustrative case. JOURNAL OF NEUROSURGERY. CASE LESSONS 2022; 4:CASE22233. [PMID: 36088559 PMCID: PMC9706337 DOI: 10.3171/case22233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 06/22/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Aneurysmal subarachnoid hemorrhage (SAH) is one of the most severe neurosurgical diseases in which systemic management is important from the acute phase to the chronic phase. The authors reported a case of aneurysmal SAH associated with intra-abdominal hemorrhage possibly caused by segmental arterial mediolysis (SAM). OBSERVATIONS A 60-year-old woman collapsed suddenly at home. On arrival at our hospital, she was comatose and her head computed tomography (CT) showed SAH, probably from an anterior cerebral artery aneurysm. Simultaneous body CT to screen for pneumonia associated with COVID-19 incidentally detected an intra-abdominal hematoma and the bleeding point. Emergent ventriculostomy was conducted first. Because abdominal angiography detected a ruptured pseudoaneurysm of an ovarian artery, emergency embolization was subsequently performed for hemostasis. However, she deteriorated again, and her pupils became fully dilated. The patient died on day 3 of hospitalization. LESSONS Patients with aneurysmal SAH rarely have intra-abdominal hemorrhage in the acute stage and may have a fatal outcome. Intra-abdominal hemorrhage should be suspected in the setting of unstable vital signs, and prompt treatment is necessary.
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Affiliation(s)
| | | | | | | | | | - Akira Yamamoto
- Radiology, Kawasaki Medical School, Kurashiki, Okayama, Japan
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Tokuda T, Tajiri S, Ueda Y, Ohmori Y, Mukasa A. A case of subarachnoid hemorrhage caused by multiple cerebral aneurysms due to segmental arterial mediolysis. Surg Neurol Int 2022; 13:175. [PMID: 35509548 PMCID: PMC9062942 DOI: 10.25259/sni_282_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 04/06/2022] [Indexed: 11/11/2022] Open
Abstract
Background: Segmental arterial mediolysis (SAM) is a condition in which an aneurysm is formed by causing lysis of the media and remodeling of blood vessels. Short-term recurrence has been reported in abdominal aortic aneurysms. Cerebral aneurysms have been suggested to form in a short period not only in the abdominal cavity but also in the intracranial arteries in SAM. Case Description: A 36-year-old pregnant woman at 35 weeks’ gestation developed sudden headache and disorientation. Head magnetic resonance imaging showed a small amount of subarachnoid hemorrhage in the right ambient cistern. A fusiform cerebral aneurysm was found in the periphery of the right superior cerebellar artery, and small saccular aneurysms were found in the periphery of the right posterior cerebral artery and left posterior inferior cerebral artery. After delivery of the fetus, endovascular embolization of the ruptured aneurysm was performed. However, 10-week postoperatively, she developed sudden headache. Hemorrhage was found in the fourth ventricle, and enlargement of the left posterior inferior cerebellar artery (PICA) peripheral aneurysm and disappearance of the right posterior cerebral artery peripheral aneurysm were confirmed. A ruptured aneurysm in the peripheral left PICA was removed after trapping. Intraoperatively, an unruptured thrombosed aneurysm that was not visualized by imaging was also removed. Histopathological examination showed no calcification or inflammation, rupture of the internal elastic lamina, and lack of segmentation, and SAM was diagnosed. Conclusion: In atypical dissecting aneurysms, SAM should be considered as a differential diagnosis. Systemic examination and short-term follow-up are also necessary.
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Affiliation(s)
- Takaho Tokuda
- Department of Neurosurgery, Minamata City General Hospital and Medical Center, Kumamoto,
| | - Seiji Tajiri
- Department of Neurosurgery, Minamata City General Hospital and Medical Center, Kumamoto,
| | - Yutaka Ueda
- Department of Neurosurgery, Miyazaki Prefectural Nobeoka Hospital, Nobeoka,
| | - Yuki Ohmori
- Department of Neurosurgery, Kumamoto University Hospital, Kumamoto, Japan
| | - Akitake Mukasa
- Department of Neurosurgery, Kumamoto University Hospital, Kumamoto, Japan
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Zhai XD, Hu P, He C, Feng YS, Li GL, Zhang HQ. Current Knowledge of and Perspectives about the Pathogenesis of Blood Blister-like Aneurysms of the Internal Carotid Artery: A Review of the Literature. Int J Med Sci 2021; 18:2017-2022. [PMID: 33850472 PMCID: PMC8040398 DOI: 10.7150/ijms.53154] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 01/07/2021] [Indexed: 11/05/2022] Open
Abstract
Blood blister-like aneurysms (BBAs) are rare and usually appear at nonbranching sites in the supraclinoid portion of the internal carotid artery (ICA). Because it is difficult to obtain histological specimens of the aneurysm wall and because experimental models are challenging to establish, the pathogenesis of BBAs remains uncertain. In this paper, we reviewed the diagnostic, radiological, and pathophysiological characteristics of patients with BBAs. We also summarized the existing evidence and potential mechanisms related to the causes of BBAs. Current evidence indicates that atherosclerosis and dissection are the main prerequisites for the formation of BBAs. Hemodynamics may play a role in the process of BBA formation due to the unique vascular anatomy of the supraclinoid ICA. Further research on histopathology and hemodynamics is warranted in this field.
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Affiliation(s)
- Xiao-Dong Zhai
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.,China International Neuroscience Institute (China-INI), Beijing, China
| | - Peng Hu
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.,China International Neuroscience Institute (China-INI), Beijing, China
| | - Chuan He
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.,China International Neuroscience Institute (China-INI), Beijing, China
| | - Yue-Shan Feng
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.,China International Neuroscience Institute (China-INI), Beijing, China
| | - Gui-Lin Li
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.,China International Neuroscience Institute (China-INI), Beijing, China
| | - Hong-Qi Zhang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.,China International Neuroscience Institute (China-INI), Beijing, China
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Ota K, Matsubara N. A Case of Segmental Arterial Mediolysis: Hemoperitoneum with Hemorrhagic Shock due to Rupture of a Visceral Artery Aneurysm Following Subarachnoid Hemorrhage. JOURNAL OF NEUROENDOVASCULAR THERAPY 2020; 15:189-194. [PMID: 37502735 PMCID: PMC10370665 DOI: 10.5797/jnet.cr.2020-0068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 08/03/2020] [Indexed: 07/29/2023]
Abstract
Objective Segmental arterial mediolysis (SAM) is a non-inflammatory and non-atherosclerotic vascular disease characterized by segmental medial defect/necrosis of muscular arteries as a result of mediolysis. SAM affects the visceral and intracranial arteries, and causes arterial dissection and aneurysm. We report a case of aneurysmal subarachnoid hemorrhage (SAH) followed by hemoperitoneum due to a ruptured visceral artery aneurysm. Case Presentation A 54-year-old man developed SAH from a ruptured anterior communicating artery aneurysm, which was clipped on the same day. Thereafter, he was treated to prevent cerebral vasospasm. Six days after onset, he developed acute anemia and his blood pressure decreased, suggesting hemorrhagic shock. Hemoperitoneum was detected on computed tomography and abdominal angiography was performed. Irregular and stenotic arterial findings, and an unusual aneurysm with contrast stasis were found in a branch vessel from the right gastroepiploic artery. SAM was diagnosed based on the clinical course and angiographic characteristics. Endovascular treatment consisted of embolization of the visceral artery aneurysm with liquid embolic material. after embolization, the vital signs stabilized and he recovered from shock. Acute treatment for SAH was continued. Although the patient did not develop vasospasm-related sequelae, he was transferred to the rehabilitation hospital 7 weeks after onset and his modified Rankin Scale score at 3 months after onset was 2. Conclusion Visceral artery aneurysm associated with SAM should be considered as the cause of hemoperitoneum with hemorrhagic shock during the acute phase of SAH.
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Affiliation(s)
- Keisuke Ota
- Department of Neurosurgery, Anjo Kosei Hospital, Anjo, Aichi, Japan
| | - Noriaki Matsubara
- Department of Neurosurgery and Neuroendovascular Therapy, Osaka Medical College, Takatsuki, Osaka, Japan
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7
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Cerebral segmental arterial mediolysis in a pediatric patient: A novel case. HUMAN PATHOLOGY: CASE REPORTS 2020. [DOI: 10.1016/j.ehpc.2020.200377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Skeik N, Olson SL, Hari G, Pavia ML. Segmental arterial mediolysis (SAM): Systematic review and analysis of 143 cases. Vasc Med 2019; 24:549-563. [DOI: 10.1177/1358863x19873410] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Segmental arterial mediolysis (SAM) is a rare but serious nonatherosclerotic, noninflammatory vasculopathy of unknown etiology that often results in dissection, aneurysm, occlusion, or stenosis of, primarily, the abdominal arteries. Current literature lacks consensus on diagnostic criteria and management options for SAM. This review summarizes 143 cases and aims to advance appropriate recognition and management of SAM. Literature review of all relevant SAM case studies from 2005 to 2018 yielded 126 individual SAM cases from 66 reports. We identified 17 additional SAM cases from our center, bringing our analysis to 143 patients. Patients with SAM were most commonly men (68%) in their 60s. Hypertension (43%), tobacco use (12%), and hyperlipidemia (12%) were common comorbidities. Abdominal pain (80%) and intraabdominal bleeding (50%) were the most common presenting symptoms. Computed tomography was the most frequently used imaging method (78%), and histology was available in 44% of cases. The most commonly affected vessels were the superior mesenteric (53%), hepatic (45%), celiac (36%), renal (26%), and splenic (25%) arteries with aneurysm (76%), dissection (61%), and arterial rupture (46%). Treatments included coil embolization (28%), abdominal organ surgery (24%), open arterial repair (21%), and medical management (20%). Case-specific treatment modalities yielded symptom relief in the vast majority (91%) of patients, with a mortality rate of 7%.
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Affiliation(s)
- Nedaa Skeik
- Vascular Medicine Section, Minneapolis Heart Institute, Minneapolis, MN, USA
| | - Sydney L Olson
- Vascular Medicine Section, Minneapolis Heart Institute, Minneapolis, MN, USA
| | - Gopika Hari
- Vascular Medicine Section, Minneapolis Heart Institute, Minneapolis, MN, USA
| | - Mary L Pavia
- Vascular Medicine Section, Minneapolis Heart Institute, Minneapolis, MN, USA
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A Ruptured Blood Blister-Like Aneurysm Associated with Intraperitoneal Hemorrhage due to Segmental Arterial Mediolysis: A Case Report and Literature Review. World Neurosurg 2019; 134:79-85. [PMID: 31669242 DOI: 10.1016/j.wneu.2019.10.096] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 10/14/2019] [Accepted: 10/15/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Segmental arterial mediolysis (SAM) is a rare non-atherosclerotic, noninflammatory vascular disease, characterized by mediolysis. We report an extremely rare case of subarachnoid hemorrhage (SAH) due to a ruptured blood blister-like aneurysm (BBA) of the internal carotid artery associated with SAM-related arteriopathy. CASE DESCRIPTION We experienced a case of SAH followed by intraperitoneal hemorrhage that occurred 12 days after the SAH onset. SAH was caused by a ruptured BBA of the internal carotid artery, which was treated by trapping with high-flow bypass. Intraperitoneal hemorrhage was caused by a rupture of a posterior inferior pancreaticoduodenal artery (PIPDA) aneurysm, which induced hypovolemic shock resulting in death in spite of endovascular internal trapping. Postmortem pathologic examination revealed that the PIPDA pseudoaneurysm was due to SAM. CONCLUSIONS We should pay attention to the association of SAM, which is a potentially life-threatening pathology when treating cerebral BBAs.
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Kaneko S, Watanabe E, Abe M, Watanabe S, Yabe H, Kojima S, Takagi K, Hirai K, Morishita Y, Terai C. Scleroderma renal crisis with coexisting segmental arterial mediolysis presenting as intraperitoneal bleeding: a case report. J Med Case Rep 2019; 13:74. [PMID: 30890184 PMCID: PMC6425683 DOI: 10.1186/s13256-019-1993-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 01/23/2019] [Indexed: 11/10/2022] Open
Abstract
Background Segmental arterial mediolysis is a rare nonarteriosclerotic and noninflammatory vascular disease that may cause intraperitoneal bleeding. Scleroderma renal crisis is a rare complication of systemic sclerosis, leading to severe hypertension and renal dysfunction. To the best of our knowledge, this is the first reported case of a patient with concurrent systemic sclerosis with scleroderma renal crisis and pathologically confirmed segmental arterial mediolysis. Case presentation We report a case of a 68-year-old Chinese woman diagnosed with systemic sclerosis who was found to have coexisting segmental arterial mediolysis. She presented with back pain, and massive intraperitoneal bleeding was detected by computed tomography. She underwent laparotomy, and the bleeding was found to originate from the gastroepiploic artery. The pathological examination demonstrated gastroepiploic arterial dissection caused by segmental arterial mediolysis. After surgery, she developed severe hypertension with hyperreninemia and progressive renal dysfunction. Given the risk factors of corticosteroid administration and the presence of anti-ribonucleic acid polymerase III antibody, she was diagnosed with scleroderma renal crisis. The patient was proved to have a very rare case of coexisting scleroderma renal crisis and segmental arterial mediolysis. Conclusions There is no known etiological connection between segmental arterial mediolysis and systemic sclerosis or scleroderma renal crisis, but it is possible that coexisting segmental arterial mediolysis and scleroderma renal crisis may have interacted to trigger the development of the other in our patient.
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Affiliation(s)
- Shohei Kaneko
- Department of Rheumatology, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma-cho, Omiya-ku, Saitama, 330-8503, Japan.,Department of Nephrology, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma-cho, Omiya-ku, Saitama, 330-8503, Japan
| | - Eri Watanabe
- Department of Rheumatology, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma-cho, Omiya-ku, Saitama, 330-8503, Japan.
| | - Mai Abe
- Department of Rheumatology, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma-cho, Omiya-ku, Saitama, 330-8503, Japan
| | - Shinji Watanabe
- Department of Rheumatology, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma-cho, Omiya-ku, Saitama, 330-8503, Japan
| | - Hiroki Yabe
- Department of Rheumatology, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma-cho, Omiya-ku, Saitama, 330-8503, Japan
| | - Shigehiro Kojima
- Department of Surgery, Sainokuni Higashiomiya Medical Center, 1522 Toro-cho, Kita-ku, Saitama, 331-8577, Japan
| | - Kenji Takagi
- Department of Rheumatology, Sainokuni Higashiomiya Medical Center, 1522 Toro-cho, Kita-ku, Saitama, 331-8577, Japan
| | - Keiji Hirai
- Department of Nephrology, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma-cho, Omiya-ku, Saitama, 330-8503, Japan
| | - Yoshiyuki Morishita
- Department of Nephrology, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma-cho, Omiya-ku, Saitama, 330-8503, Japan
| | - Chihiro Terai
- Department of Rheumatology, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma-cho, Omiya-ku, Saitama, 330-8503, Japan
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Delafosse E, Armengol G, Triquenot-Bagan A, Hebant B. A case of segmental arterial mediolysis with widespread involvement of cranial and abdominal arteries. J Neurol Sci 2019; 397:81-83. [DOI: 10.1016/j.jns.2018.12.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/02/2018] [Accepted: 12/16/2018] [Indexed: 11/17/2022]
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Hayashi S, Hosoda K, Nishimoto Y, Nonaka M, Higuchi S, Miki T, Negishi M. Unexpected intraabdominal hemorrhage due to segmental arterial mediolysis following subarachnoid hemorrhage: A case of ruptured intracranial and intraabdominal aneurysms. Surg Neurol Int 2018; 9:175. [PMID: 30221020 PMCID: PMC6130153 DOI: 10.4103/sni.sni_129_18] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 07/20/2018] [Indexed: 01/17/2023] Open
Abstract
Background: Segmental arterial mediolysis (SAM) is an uncommon vascular disease, which manifests as catastrophic intraabdominal hemorrhage caused by rupture of visceral dissecting aneurysms in most cases. The etiology of SAM is still unclear, but SAM may be a vasospastic disorder and the responsible pressor agent is norepinephrine. Recently, abdominal SAM coexisting with intracranial dissecting aneurysms has been reported, but the relationship between intraabdominal and intracranial aneurysms in SAM remains unclear, as no cases of concomitant abdominal SAM and ruptured intracranial saccular aneurysm have been reported. Case Description: A 49-year-old woman underwent emergent clipping for a ruptured saccular aneurysm at the left C1 portion of the internal carotid artery. Intraoperatively, norepinephrine was continuously administered intravenously under general anesthesia. Four days after the subarachnoid hemorrhage (SAH), the patient suddenly developed shock due to massive hematoma in the abdominal cavity. Imaging showed multiple aneurysms involving the splenic artery, gastroduodenal artery, common hepatic artery, and superior mesenteric artery. Coil embolization of the splenic artery was performed immediately to prevent bleeding. Subsequent treatment for cerebral vasospasm following SAH was performed with prevention of hypertension, and the patient recovered with left temporal lobe infarction. The diagnosis was abdominal SAM based on the clinical, imaging, and laboratory findings. Conclusion: Norepinephrine release induced by SAH and/or iatrogenic administration of norepinephrine may have promoted abdominal SAM in this case. Abdominal SAM may occur subsequent to rupture of ordinary saccular aneurysm, and may provoke catastrophic abdominal hemorrhage in the spasm stage after SAH.
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Affiliation(s)
- Satoru Hayashi
- Department of Neurosurgery, Chikamori Hospital, Kochi, Japan
| | - Koji Hosoda
- Department of Radiology, Chikamori Hospital, Kochi, Japan
| | - Yo Nishimoto
- Department of Neurosurgery, Chikamori Hospital, Kochi, Japan
| | - Motonobu Nonaka
- Department of Neurosurgery, Chikamori Hospital, Kochi, Japan
| | - Shinya Higuchi
- Department of Neurosurgery, Chikamori Hospital, Kochi, Japan
| | - Toshifumi Miki
- Department of Emergency and Critical Care Medicine, Chikamori Hospital, Kochi, Japan
| | - Masatoshi Negishi
- Department of Emergency and Critical Care Medicine, Chikamori Hospital, Kochi, Japan
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