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Brealey S, Northgraves M, Kottam L, Keding A, Corbacho B, Goodchild L, Srikesavan C, Rex S, Charalambous CP, Hanchard N, Armstrong A, Brooksbank A, Carr A, Cooper C, Dias J, Donnelly I, Hewitt C, Lamb SE, McDaid C, Richardson G, Rodgers S, Sharp E, Spencer S, Torgerson D, Toye F, Rangan A. Surgical treatments compared with early structured physiotherapy in secondary care for adults with primary frozen shoulder: the UK FROST three-arm RCT. Health Technol Assess 2020; 24:1-162. [PMID: 33292924 DOI: 10.3310/hta24710] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Frozen shoulder causes pain and stiffness. It affects around 10% of people in their fifties and is slightly more common in women. Costly and invasive surgical interventions are used, without high-quality evidence that these are effective. OBJECTIVES To compare the clinical effectiveness and cost-effectiveness of three treatments in secondary care for adults with frozen shoulder; to qualitatively explore the acceptability of these treatments to patients and health-care professionals; and to update a systematic review to explore the trial findings in the context of existing evidence for the three treatments. DESIGN This was a pragmatic, parallel-group, multicentre, open-label, three-arm, randomised superiority trial with unequal allocation (2 : 2 : 1). An economic evaluation and a nested qualitative study were also carried out. SETTING The orthopaedic departments of 35 hospitals across the UK were recruited from April 2015, with final follow-up in December 2018. PARTICIPANTS Participants were adults (aged ≥ 18 years) with unilateral frozen shoulder, characterised by restriction of passive external rotation in the affected shoulder to < 50% of the opposite shoulder, and with plain radiographs excluding other pathology. INTERVENTIONS The inventions were early structured physiotherapy with a steroid injection, manipulation under anaesthesia with a steroid injection and arthroscopic capsular release followed by manipulation. Both of the surgical interventions were followed with post-procedural physiotherapy. MAIN OUTCOME MEASURES The primary outcome and end point was the Oxford Shoulder Score at 12 months post randomisation. A difference of 5 points between early structured physiotherapy and manipulation under anaesthesia or arthroscopic capsular release or of 4 points between manipulation under anaesthesia and arthroscopic capsular release was judged clinically important. RESULTS The mean age of the 503 participants was 54 years; 319 were female (63%) and 150 had diabetes (30%). The primary analyses comprised 473 participants (94%). At the primary end point of 12 months, participants randomised to arthroscopic capsular release had, on average, a statistically significantly higher (better) Oxford Shoulder Score than those randomised to manipulation under anaesthesia (2.01 points, 95% confidence interval 0.10 to 3.91 points; p = 0.04) or early structured physiotherapy (3.06 points, 95% confidence interval 0.71 to 5.41 points; p = 0.01). Manipulation under anaesthesia did not result in statistically significantly better Oxford Shoulder Score than early structured physiotherapy (1.05 points, 95% confidence interval -1.28 to 3.39 points; p = 0.38). No differences were deemed of clinical importance. Serious adverse events were rare but occurred in participants randomised to surgery (arthroscopic capsular release,n = 8; manipulation under anaesthesia,n = 2). There was, however, one serious adverse event in a participant who received non-trial physiotherapy. The base-case economic analysis showed that manipulation under anaesthesia was more expensive than early structured physiotherapy, with slightly better utilities. The incremental cost-effectiveness ratio for manipulation under anaesthesia was £6984 per additional quality-adjusted life-year, and this intervention was probably 86% cost-effective at the threshold of £20,000 per quality-adjusted life-year. Arthroscopic capsular release was more costly than early structured physiotherapy and manipulation under anaesthesia, with no statistically significant benefit in utilities. Participants in the qualitative study wanted early medical help and a quicker pathway to resolve their shoulder problem. Nine studies were identified from the updated systematic review, including UK FROST, of which only two could be pooled, and found that arthroscopic capsular release was more effective than physiotherapy in the long-term shoulder functioning of patients, but not to the clinically important magnitude used in UK FROST. LIMITATIONS Implementing physiotherapy to the trial standard in clinical practice might prove challenging but could avoid theatre use and post-procedural physiotherapy. There are potential confounding effects of waiting times in the trial. CONCLUSIONS None of the three interventions was clearly superior. Early structured physiotherapy with a steroid injection is an accessible and low-cost option. Manipulation under anaesthesia is the most cost-effective option. Arthroscopic capsular release carries higher risks and higher costs. FUTURE WORK Evaluation in a randomised controlled trial is recommended to address the increasing popularity of hydrodilatation despite the paucity of high-quality evidence. TRIAL REGISTRATION Current Controlled Trials ISRCTN48804508. FUNDING This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 24, No. 71. See the NIHR Journals Library website for further project information.
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Affiliation(s)
- Stephen Brealey
- York Trials Unit, Department of Health Sciences, University of York, York, UK
| | - Matthew Northgraves
- York Trials Unit, Department of Health Sciences, University of York, York, UK
| | - Lucksy Kottam
- The James Cook University Hospital, South Tees Hospitals NHS Foundation Trust, Middlesbrough, UK
| | - Ada Keding
- York Trials Unit, Department of Health Sciences, University of York, York, UK
| | - Belen Corbacho
- York Trials Unit, Department of Health Sciences, University of York, York, UK
| | | | - Cynthia Srikesavan
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Oxford, UK
| | - Saleema Rex
- York Trials Unit, Department of Health Sciences, University of York, York, UK
| | - Charalambos P Charalambous
- Department of Orthopaedics, Blackpool Victoria Hospital, Blackpool, UK.,School of Medicine, University of Central Lancashire, Preston, UK
| | - Nigel Hanchard
- School of Health & Life Sciences, Teesside University, Middlesbrough, UK
| | | | | | - Andrew Carr
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Oxford, UK
| | - Cushla Cooper
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Oxford, UK
| | - Joseph Dias
- University Hospitals of Leicester NHS Trust, Leicester, UK
| | | | - Catherine Hewitt
- York Trials Unit, Department of Health Sciences, University of York, York, UK
| | - Sarah E Lamb
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Oxford, UK
| | - Catriona McDaid
- York Trials Unit, Department of Health Sciences, University of York, York, UK
| | | | - Sara Rodgers
- York Trials Unit, Department of Health Sciences, University of York, York, UK
| | | | - Sally Spencer
- Postgraduate Medical Institute, Edge Hill University, Ormskirk, UK
| | - David Torgerson
- York Trials Unit, Department of Health Sciences, University of York, York, UK
| | - Francine Toye
- Physiotherapy Research Unit, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Amar Rangan
- York Trials Unit, Department of Health Sciences, University of York, York, UK.,The James Cook University Hospital, South Tees Hospitals NHS Foundation Trust, Middlesbrough, UK.,Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Oxford, UK
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Rangan A, Brealey SD, Keding A, Corbacho B, Northgraves M, Kottam L, Goodchild L, Srikesavan C, Rex S, Charalambous CP, Hanchard N, Armstrong A, Brooksbank A, Carr A, Cooper C, Dias JJ, Donnelly I, Hewitt C, Lamb SE, McDaid C, Richardson G, Rodgers S, Sharp E, Spencer S, Torgerson D, Toye F. Management of adults with primary frozen shoulder in secondary care (UK FROST): a multicentre, pragmatic, three-arm, superiority randomised clinical trial. Lancet 2020; 396:977-989. [PMID: 33010843 DOI: 10.1016/s0140-6736(20)31965-6] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 06/26/2020] [Accepted: 07/08/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Manipulation under anaesthesia and arthroscopic capsular release are costly and invasive treatments for frozen shoulder, but their effectiveness remains uncertain. We compared these two surgical interventions with early structured physiotherapy plus steroid injection. METHODS In this multicentre, pragmatic, three-arm, superiority randomised trial, patients referred to secondary care for treatment of primary frozen shoulder were recruited from 35 hospital sites in the UK. Participants were adults (≥18 years) with unilateral frozen shoulder, characterised by restriction of passive external rotation (≥50%) in the affected shoulder. Participants were randomly assigned (2:2:1) to receive manipulation under anaesthesia, arthroscopic capsular release, or early structured physiotherapy. In manipulation under anaesthesia, the surgeon manipulated the affected shoulder to stretch and tear the tight capsule while the participant was under general anaesthesia, supplemented by a steroid injection. Arthroscopic capsular release, also done under general anaesthesia, involved surgically dividing the contracted anterior capsule in the rotator interval, followed by manipulation, with optional steroid injection. Both forms of surgery were followed by postprocedural physiotherapy. Early structured physiotherapy involved mobilisation techniques and a graduated home exercise programme supplemented by a steroid injection. Both early structured physiotherapy and postprocedural physiotherapy involved 12 sessions during up to 12 weeks. The primary outcome was the Oxford Shoulder Score (OSS; 0-48) at 12 months after randomisation, analysed by initial randomisation group. We sought a target difference of 5 OSS points between physiotherapy and either form of surgery, or 4 points between manipulation and capsular release. The trial registration is ISRCTN48804508. FINDINGS Between April 1, 2015, and Dec 31, 2017, we screened 914 patients, of whom 503 (55%) were randomly assigned. At 12 months, OSS data were available for 189 (94%) of 201 participants assigned to manipulation (mean estimate 38·3 points, 95% CI 36·9 to 39·7), 191 (94%) of 203 participants assigned to capsular release (40·3 points, 38·9 to 41·7), and 93 (94%) of 99 participants assigned to physiotherapy (37·2 points, 35·3 to 39·2). The mean group differences were 2·01 points (0·10 to 3·91) between the capsular release and manipulation groups, 3·06 points (0·71 to 5·41) between capsular release and physiotherapy, and 1·05 points (-1·28 to 3·39) between manipulation and physiotherapy. Eight serious adverse events were reported with capsular release and two with manipulation. At a willingness-to-pay threshold of £20 000 per quality-adjusted life-year, manipulation under anaesthesia had the highest probability of being cost-effective (0·8632, compared with 0·1366 for physiotherapy and 0·0002 for capsular release). INTERPRETATION All mean differences on the assessment of shoulder pain and function (OSS) at the primary endpoint of 12 months were less than the target differences. Therefore, none of the three interventions were clinically superior. Arthoscopic capsular release carried higher risks, and manipulation under anaesthesia was the most cost-effective. FUNDING The National Institute for Health Research Health Technology Assessment programme.
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Affiliation(s)
- Amar Rangan
- York Trials Unit, Department of Health Sciences, University of York, York, UK; Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Oxford, UK; The James Cook University Hospital, South Tees Hospitals National Health Service (NHS) Foundation Trust, Middlesbrough, UK.
| | - Stephen D Brealey
- York Trials Unit, Department of Health Sciences, University of York, York, UK
| | - Ada Keding
- York Trials Unit, Department of Health Sciences, University of York, York, UK
| | - Belen Corbacho
- York Trials Unit, Department of Health Sciences, University of York, York, UK
| | - Matthew Northgraves
- York Trials Unit, Department of Health Sciences, University of York, York, UK
| | - Lucksy Kottam
- The James Cook University Hospital, South Tees Hospitals National Health Service (NHS) Foundation Trust, Middlesbrough, UK
| | - Lorna Goodchild
- The James Cook University Hospital, South Tees Hospitals National Health Service (NHS) Foundation Trust, Middlesbrough, UK
| | - Cynthia Srikesavan
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Oxford, UK
| | - Saleema Rex
- York Trials Unit, Department of Health Sciences, University of York, York, UK
| | - Charalambos P Charalambous
- Department of Orthopaedics, Blackpool Victoria Hospital, Blackpool, UK; School of Medicine, University of Central Lancashire, Preston, UK
| | - Nigel Hanchard
- School of Health and Social Care, Teesside University, Middlesbrough, UK
| | | | | | - Andrew Carr
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Oxford, UK
| | - Cushla Cooper
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Oxford, UK
| | - Joseph J Dias
- University Hospitals of Leicester NHS Trust, Leicester, UK
| | | | - Catherine Hewitt
- York Trials Unit, Department of Health Sciences, University of York, York, UK
| | - Sarah E Lamb
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Oxford, UK
| | - Catriona McDaid
- York Trials Unit, Department of Health Sciences, University of York, York, UK
| | | | - Sara Rodgers
- York Trials Unit, Department of Health Sciences, University of York, York, UK
| | | | - Sally Spencer
- Postgraduate Medical Institute, Edge Hill University, Ormskirk, UK
| | - David Torgerson
- York Trials Unit, Department of Health Sciences, University of York, York, UK
| | - Francine Toye
- Physiotherapy Research Unit, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
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Bagheri A, Liu XC, Tassone C, Thometz J, Chaloupka A, Tarima S, Cohen L, Simic M, Dennis S, Refshauge K, Pappas E, Parent EC, Pietrosanu M, Redford E, Schmidt S, Hill D, Moreau M, Hedden D, Adeeb S, Lou E, Brink RC, Schlösser TPC, Colo D, Vincken KL, van Stralen M, Hui SCN, Chu WCW, Cheng JCY, Castelein RM, Kechagias V, Grivas TB, Vlasis K, Michas K, Grivas TB, Kechagias V, Vlasis K, Michas K, Tam EMS, Yu FWP, Hung VWY, Shi L, Qin L, Ng BKW, Chu WCW, Griffith J, Cheng JCY, Lam TP, Xue C, Shi L, Hui SCN, Lam TP, Ng BKW, Cheng JCY, Chu WCW, Hui SCN, Pialasse JP, Wong JYH, Lam TP, Ng BKW, Cheng JCY, Chu WCW, Vo QN, Le LH, Lou EHM, Zheng R, Hill DL, Moreau MJ, Hedden DM, Mahood JK, Southon S, Lou E, Brignol A, Cheriet F, Miron MC, Laporte C, Qiu Y, Liu H, Liu Z, Zhu ZZ, Qian BP, Liu X, Rizza R, Thometz J, Rosol D, Tassone C, Tarima S, North P, Zaina F, Pesenti F, Negrini S, Persani L, Capodaglio P, Polli N, Yip BHK, Yu FWP, Hung VWY, Lam TP, Qin L, Ng BKW, Cheng JCY, Zhang J, Lee WYW, Chen H, Tam EMS, Man GC, Lam TP, Ng BKW, Qiu Y, Cheng JCY, Liu H, Liu Z, Zhu Z, Qian BP, Qiu Y, Harasymczuk P, Andrusiewicz M, Janusz P, Biecek P, Kotwicki T, Kotwicka M, Lee JS, Shin JK, Goh TS, Son SM, Chen H, Lee WYW, Zhang J, Tam EMS, Man GCW, Lam TP, Ng BKW, Qiu Y, Cheng JCY, Schwartz M, Gilday S, Bylski-Austrow DI, Glos DL, Schultz L, O’Hara S, Jain VV, Sturm PF, Wang X, Crandall DG, Parent S, Larson N, Labelle H, Aubin CE, Fard NB, Southon S, Moreau M, Hedden D, Duke K, Southon S, Lukenchuk L, Kerslake M, Huynh G, Chorney J, Tsui B, Tobert D, Bakarania P, Berdishevsky H, Grimes K, Matsumoto H, Hyman J, Roye B, Roye D, Vitale M, Black J, Bradley M, Drake S, Glynn D, Maude E, Berdishevsky H, Lindgren A, Bakarania P, Grimes K, Matsumoto H, Feinberg N, Bloom Z, Roye D, Vitale M, Dupuis S, Fortin C, Caouette C, Aubin CÉ, Gur G, Yakut Y, Jevtić N, Schreiber S, Hennes A, Pantović M, de Mauroy JC, Barral F, Pourret S, de Mauroy JC, Barral F, Pourret S, Aulisa AG, Guzzanti V, Galli M, Falciglia F, Aulisa L, Bernard JC, Deceuninck J, Berthonnaud E, Rougelot A, Pickering ME, Chaleat-Valayer E, Webb R, Bettany-Saltikov J, Neil B, Zaina F, Poggio M, Donzelli S, Lusini M, Minnella S, Negrini S, de Mauroy JC, Barral F, Hoang A, Mao S, Shi B, Qian B, Zhu Z, Sun X, Qiu Y, Cobetto N, Aubin CÉ, Parent S, Barch S, Turgeon I, Labelle H, Raihan HMA, Kumar DT, Khasnabis C, Equbal A, Chakraborty AK, Biswas A, Gur G, Dilek B, Ayhan C, Simsek E, Aras O, Aksoy S, Yakut Y, Lou E, Hill D, Zheng R, Donauer A, Tilburn M, Raso J, Morau M, Hedden D, Chen H, Man-Sang W, Cohen L, Kobayashi S, Simic M, Dennis S, Refshauge K, Pappas E, Aslanzadeh F, Parent EC, MacIntosh B, Maragkoudakis EG, Grivas TB, Gelalis ID, Mazioti C, Tsilimidos G, Burwell RG, Zheng Y, Wu XJ, Dang YN, Sun N, Yang Y, Wang T, He CQ, Wong MS, Donzelli S, Martinez G, Negrini A, Zaina F, Negrini S, Matsumoto H, Feinberg N, Shirley M, Swindell H, Bloom Z, Roye DP, Akbarnia BA, Garg S, Sanders JO, Skaggs DL, Smith JT, Vitale MG, Rizza R, Liu X, Thometz J, Lou E, Hill D, Donauer A, Tilburn M, Hedden D, Moreau M, Healy A, Farmer S, Chockalingam N, Aulisa AG, Guzzanti V, Galli M, Pizzetti P, Aulisa L, Maruyama T, Kobayashi Y, Nakao Y, Liu H, Qian BP, Qiu Y, Mao SH, Wang B, Yu Y, Zhu Z, Berdishevsky H, Lindgren AM, Bakarania P, Grimes K, Makhni MC, Shillingford J, Vitale MG, Black J, Maude E, Turland A, Glynn D, Caronni A, Sciumè L, Donzelli S, Zaina F, Negrini S, Schreiber S, Parent EC, Moez EK, Hedden DM, Hill DL, Moreau M, Lou E, Watkins EM, Southon SC, Parent EC, Schreiber S, Moez EK, Sloan P, Hedden D, Moreau M, Hill D, Southon S, Watkins E, Parent EC, Ghaneei M, Adeeb S, Schreiber S, Moreau M, Hedden D, Hill D, Southon S, Karavidas N, Dritsa D, Bettany-Saltikov J, Hanchard N, Kim D, Kim J, Sbihli A, Parent E, Levey L, Holowka M, Davis L, Dolan LA, Weinstein SL, Larson JE, Meyer MA, Boody B, Sarwark JF, Schreiber S, Parent EC, Hedden DM, Hill DL, Thometz J, Liu X, Rizza R, Tassone C, Liu X, Gundlach B, Tarima S, Grant A, Kalyan R, Hekal W, Honeyman C, Cook T, Murray S, Pitruzzella M, Donzelli S, Zaina F, Negrini S, de Mauroy JC, Barral F, Pourret S, de Mauroy JC, Barral F, Pourret S, Grimes K, Feinberg N, Hope J, Berdishevsky H, Bakarania P, Matsumoto H, Swindell H, Yoshimachi J, Roye D, Vitale M, Touchette J, St-Jean A, Brousseau D, Marcotte L, Théroux J, Doucet C, Lin Y, Wong MS, MacMahon J, MacMahon E, Boyette J, Stikeleather L, Lebel A, Lebel VA, Pancholi-Parekh CA, Stolze L, Selthafner M, Hong K, Liu X, Thometz J, Tassone C, Morrison PR, Hanke TA, Knott P, Krumdick ND, Chockalingam N, Shannon T, Davenhill R, Needham R, Jasani V, Ahmed EN, St-Jean A, Touchette J, Drake S, Brousseau D, Marcotte L, Théroux J, Doucet C, Aulisa AG, Guzzanti V, Gordano M, Mastantuoni G, Aulisa L, Chandrinos M, Grivas TB, Kechagias V, Głowka P, Gaweł D, Kasprzak B, Nowak M, Morzyński M, Kotwicki T, Deceuninck J, Bernard JC, Lecante C, Berthonnaud E, Fortin C, Aubin-Fournier JF, Bettany-Saltikov J, Parent EC, Feldman DE, Bernard JC, Liu Z, Zhang W, Hu Z, Zhu W, Jin M, Han X, Qiu Y, Cheng JCY, Zhu Z, Liu Z, Guo J, Wu T, Qian B, Zhu Z, Zhu F, Jiang J, Qiu Y, Han X, Liu Z, Liu H, Qiu Y, Guo J, Yan H, Sun X, Cheng JCY, Zhu Z, Di Felice F, Zaina F, Pitruzzella M, Donzelli S, Negrini S, Needham RA, Chatzistergos P, Chockalingam N, Brink RC, Schlösser TPC, Colo D, Vincken KL, van Stralen M, Hui SCN, Chu WCW, Cheng JCY, Castelein RM, Bylski-Austrow DI, Glos DL, Jain VV, Reynolds JE, Sturm PF, Wall EJ, Igoumenou VG, Megaloikonomos PD, Tsiavos K, Panagopoulos GN, Mavrogenis AF, Grivas TB, Soultanis K, Papagelopoulos PJ, Fard NB, Duke K, Chan A, Parent EC, Lou E, Lee JS, Shin JK, Goh TS, Son SM, Kobayashi S, Togawa D, Hasegawa T, Yamato Y, Oe S, Banno T, Mihara Y, Matsuyama Y. 13th International Conference on Conservative Management of Spinal Deformities and First Joint Meeting of the International Research Society on Spinal Deformities and the Society on Scoliosis Orthopaedic and Rehabilitation Treatment – SOSORT-IRSSD 2016 meeting. Scoliosis 2017. [PMCID: PMC5461518 DOI: 10.1186/s13013-017-0124-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Wallace S, Guo DC, Regalado E, Mellor-Crummey L, Bamshad M, Nickerson DA, Dauser R, Hanchard N, Marom R, Martin E, Berka V, Sharina I, Ganesan V, Saunders D, Morris SA, Milewicz DM. Disrupted nitric oxide signaling due to GUCY1A3 mutations increases risk for moyamoya disease, achalasia and hypertension. Clin Genet 2016; 90:351-60. [PMID: 26777256 DOI: 10.1111/cge.12739] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 01/11/2016] [Accepted: 01/13/2016] [Indexed: 12/23/2022]
Abstract
Moyamoya disease (MMD) is a progressive vasculopathy characterized by occlusion of the terminal portion of the internal carotid arteries and its branches, and the formation of compensatory moyamoya collateral vessels. Homozygous mutations in GUCY1A3 have been reported as a cause of MMD and achalasia. Probands (n = 96) from unrelated families underwent sequencing of GUCY1A3. Functional studies were performed to confirm the pathogenicity of identified GUCY1A3 variants. Two affected individuals from the unrelated families were found to have compound heterozygous mutations in GUCY1A3. MM041 was diagnosed with achalasia at 4 years of age, hypertension and MMD at 18 years of age. MM149 was diagnosed with MMD and hypertension at the age of 20 months. Both individuals carry one allele that is predicted to lead to haploinsufficiency and a second allele that is predicted to produce a mutated protein. Biochemical studies of one of these alleles, GUCY1A3 Cys517Tyr, showed that the mutant protein (a subunit of soluble guanylate cyclase) has a significantly blunted signaling response with exposure to nitric oxide (NO). GUCY1A3 missense and haploinsufficiency mutations disrupt NO signaling leading to MMD and hypertension, with or without achalasia.
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Affiliation(s)
- S Wallace
- Division of Medical Genetics, Cardiology, and Hematology, Department of Internal Medicine, University of Texas Health Science Center, Houston, TX, USA
| | - D-C Guo
- Division of Medical Genetics, Cardiology, and Hematology, Department of Internal Medicine, University of Texas Health Science Center, Houston, TX, USA
| | - E Regalado
- Division of Medical Genetics, Cardiology, and Hematology, Department of Internal Medicine, University of Texas Health Science Center, Houston, TX, USA
| | - L Mellor-Crummey
- Division of Medical Genetics, Cardiology, and Hematology, Department of Internal Medicine, University of Texas Health Science Center, Houston, TX, USA
| | - M Bamshad
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - D A Nickerson
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - R Dauser
- Department of Neurosurgery, Texas Children's Hospital, Houston, TX, USA
| | - N Hanchard
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - R Marom
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - E Martin
- Division of Medical Genetics, Cardiology, and Hematology, Department of Internal Medicine, University of Texas Health Science Center, Houston, TX, USA
| | - V Berka
- Division of Medical Genetics, Cardiology, and Hematology, Department of Internal Medicine, University of Texas Health Science Center, Houston, TX, USA
| | - I Sharina
- Division of Medical Genetics, Cardiology, and Hematology, Department of Internal Medicine, University of Texas Health Science Center, Houston, TX, USA
| | - V Ganesan
- Neuroscience Unit, University College of London Institute of Child Health, London, UK
| | - D Saunders
- Department of Radiology, Great Ormond Street Hospital, London, UK
| | - S A Morris
- Department of Pediatrics - Cardiology, Texas Children's Hospital and Baylor College of Medicine, Houston, TX, USA
| | - D M Milewicz
- Division of Medical Genetics, Cardiology, and Hematology, Department of Internal Medicine, University of Texas Health Science Center, Houston, TX, USA.
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