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Rumman RK, Matsuda-Abedini M, Langlois V, Radhakrishnan S, Lorenzo AJ, Amaral J, Mertens L, Parekh RS. Management and Outcomes of Childhood Renal Artery Stenosis and Middle Aortic Syndrome. Am J Hypertens 2018; 31:687-695. [PMID: 29373648 DOI: 10.1093/ajh/hpy014] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Accepted: 01/20/2018] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Renal artery stenosis (RAS) in isolation or in conjunction with middle aortic syndrome (MAS) are important vascular causes of childhood hypertension. Few longitudinal studies have assessed the risk of surgical or endovascular intervention, and outcomes by etiology or extent of vascular disease. METHODS In a retrospective study of 93 children seen over 30 years with RAS and/or MAS, data on vascular involvement (isolated RAS vs. RAS with MAS), etiology (unknown, inflammatory, or genetic), and management were collected. Time to first intervention (endovascular or surgical) was assessed by Cox regression. Mixed-effects analysis examined the longitudinal change in blood pressure after intervention compared to antihypertensive medications alone. RESULTS Children were 7.0 ± 5.4 years old. Etiology was unknown in 50%, genetic in 26% and inflammatory in 24% of children. Children had isolated RAS (49%) or MAS with or without RAS (51%). Overall, 70% were managed with surgical or endovascular intervention. After adjusting for age, sex, and systolic blood pressure, children with unknown etiology had a higher risk of intervention compared to those with genetic and inflammatory diseases (hazard ratio 3.1, 95% confidence interval [CI] 1.7, 5.6). Children with RAS and MAS were less likely to receive intervention (hazard ratio 0.4, 95% CI 0.2, 0.8) than isolated RAS. Over a median follow-up of 2 years, 65% remained hypertensive. The longitudinal changes in systolic blood pressure did not differ by etiology, or between interventional and medical management. CONCLUSIONS Hypertension persists despite endovascular or surgical management of childhood RAS and MAS highlighting the importance of close monitoring and ongoing medical management.
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Affiliation(s)
- Rawan K Rumman
- Institute of Medical Science, and the Cardiovascular Sciences Collaborative Program, University of Toronto, Toronto, Ontario, Canada
- Child Health Evaluative Sciences, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Mina Matsuda-Abedini
- Division of Nephrology, Department of Pediatrics, Hospital for Sick Children, and University of Toronto, Ontario, Canada
| | - Valerie Langlois
- Division of Nephrology, Department of Pediatrics, Hospital for Sick Children, and University of Toronto, Ontario, Canada
| | - Seetha Radhakrishnan
- Division of Nephrology, Department of Pediatrics, Hospital for Sick Children, and University of Toronto, Ontario, Canada
| | - Armando J Lorenzo
- Division of Urology, Hospital for Sick Children and Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Joao Amaral
- Division of Image Guided Therapy, Hospital for Sick Children and Department of Diagnostic Imaging, University of Toronto, Toronto, Ontario, Canada
| | - Luc Mertens
- Division of Cardiology, Labatt Family Heart Center, Department of Pediatrics, Hospital for Sick Children, and University of Toronto, Toronto, Ontario, Canada
- Department of Medicine, University Health Network, Toronto, Ontario, Canada
| | - Rulan S Parekh
- Child Health Evaluative Sciences, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
- Division of Nephrology, Department of Pediatrics, Hospital for Sick Children, and University of Toronto, Ontario, Canada
- Department of Medicine, University Health Network, Toronto, Ontario, Canada
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Rumman RK, Nickel C, Matsuda-Abedini M, Lorenzo AJ, Langlois V, Radhakrishnan S, Amaral J, Mertens L, Parekh RS. Disease Beyond the Arch: A Systematic Review of Middle Aortic Syndrome in Childhood. Am J Hypertens 2015; 28:833-46. [PMID: 25631383 DOI: 10.1093/ajh/hpu296] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 12/13/2014] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Middle aortic syndrome (MAS) is a rare clinical entity in childhood, characterized by a severe narrowing of the distal thoracic and/or abdominal aorta, and associated with significant morbidity and mortality. MAS remains a relatively poorly defined disease. This paper systematically reviews the current knowledge on MAS with respect to etiology, clinical impact, and therapeutic options. METHODS A systematic search of 3 databases (Embase, MEDLINE, and Cochrane Central Register of Controlled Trials) yielded 1,252 abstracts that were screened based on eligibility criteria resulting in 184 full-text articles with 630 reported cases of childhood MAS. Data extracted included patient characteristics, clinical presentation, vascular phenotype, management, and outcomes. RESULTS Most cases of MAS are idiopathic (64%), 15% are associated with Mendelian disorders, and 17% are related to inflammatory diseases. Extra-aortic involvement including renal (70%), superior mesenteric (30%), and celiac (22%) arteries is common, especially among those with associated Mendelian disorders. Inferior mesenteric artery involvement is almost never reported. The majority of cases (72%) undergo endovascular or surgical management with residual hypertension reported in 34% of cases, requiring medication or reintervention. Clinical manifestations and extent of extra-aortic involvement are lacking. CONCLUSIONS MAS presents with significant involvement of visceral arteries with over two thirds of cases having renal artery stenosis, and one third with superior mesenteric artery stenosis. The extent of disease is worse among those with genetic and inflammatory conditions. Further studies are needed to better understand etiology, long-term effectiveness of treatment, and to determine the optimal management of this potentially devastating condition.
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Affiliation(s)
- Rawan K Rumman
- Institute of Medical Science and The Cardiovascular Sciences Collaborative Program, University of Toronto, Toronto, Ontario, Canada; Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Cheri Nickel
- Hospital Library and Archives, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Mina Matsuda-Abedini
- Department of Pediatrics, Division of Nephrology, The Hospital for Sick Children, Toronto, Ontario, Canada; Faculty of Medicine, University of Toronto, Ontario, Canada
| | - Armando J Lorenzo
- Faculty of Medicine, University of Toronto, Ontario, Canada; Department of Surgery, Division of Urology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Valerie Langlois
- Department of Pediatrics, Division of Nephrology, The Hospital for Sick Children, Toronto, Ontario, Canada; Faculty of Medicine, University of Toronto, Ontario, Canada
| | - Seetha Radhakrishnan
- Department of Pediatrics, Division of Nephrology, The Hospital for Sick Children, Toronto, Ontario, Canada; Faculty of Medicine, University of Toronto, Ontario, Canada
| | - Joao Amaral
- Faculty of Medicine, University of Toronto, Ontario, Canada; Division of Image Guided Therapy, Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Luc Mertens
- Faculty of Medicine, University of Toronto, Ontario, Canada; Division of Cardiology, Labatt Family Heart Center, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Rulan S Parekh
- Department of Pediatrics, Division of Nephrology, The Hospital for Sick Children, Toronto, Ontario, Canada; Faculty of Medicine, University of Toronto, Ontario, Canada; Department of Medicine, University Health Network, Toronto, Ontario, Canada.
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Poovazhagi V, Pauline L, Balakrishnan N. hypertensive intracranial bleed due to mid aortic syndrome. Indian J Pediatr 2014; 81:285-7. [PMID: 24068622 DOI: 10.1007/s12098-013-1202-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Accepted: 07/31/2013] [Indexed: 11/28/2022]
Abstract
The authors describe an 11-y-old child with intracranial bleed due to malignant hypertension. Child presented with hypertension, right hemiparesis, feeble femoral pulses and lower limb blood pressure less than the upper limb. CT angiogram revealed narrowing of the abdominal aorta with thinned out left renal artery and hypoplasia of the left kidney. A diagnosis of Mid aortic syndrome was arrived at. CT brain revealed left ganglio capsular bleed. Child was treated with antihypertensives and steriods in view of suspected Takayasu arteritis. Child recovered with minimal hemiparesis and is being followed up.
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Affiliation(s)
- Varadarajan Poovazhagi
- Department of Pediatric Intensive Care, Institute of Child Health and Hospital for Children, Egmore, Chennai, Tamil Nadu, 600008, India,
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