1
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Ozdag Y, Koshinski JL, Carry BJ, Gardner JM, Garcia VC, Dwyer CL, Akoon A, Klena JC, Grandizio LC. A Comparison of Amyloid Deposition in Endoscopic and Open Carpal Tunnel Release. J Hand Surg Am 2024; 49:301-309. [PMID: 38363261 DOI: 10.1016/j.jhsa.2024.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/27/2023] [Accepted: 01/09/2024] [Indexed: 02/17/2024]
Abstract
PURPOSE Previous investigations assessing the incidence of amyloidosis detected with biopsy during carpal tunnel release (CTR) have focused on open CTR (OCTR). Prior authors have suggested that biopsy may be more technically challenging during endoscopic carpal tunnel release (ECTR). Our purpose was to compare differences in the incidence of amyloid deposition detected during ECTR versus OCTR. METHODS We reviewed all primary ECTR and OCTR during which a biopsy for amyloid was obtained between February 2022 and June 2023. All procedures were performed by five upper-extremity surgeons from a single institution. Congo red staining was used to determine the presence of amyloid deposition in either the transverse carpal ligament (TCL) or tenosynovium. All positive cases underwent subtype analysis and protein identification through liquid chromatography-tandem mass spectrometry. Baseline demographics were recorded for each case, and the incidence of positive biopsy was compared between ECTR and OCTR cases. RESULTS A total of 282 cases were included for analysis (143 ECTR and 139 OCTR). The mean age was 67 years, and 45% of cases were women. Baseline demographics were similar except for a significantly higher incidence of diabetes in OCTR cases (13% vs 33%). Overall, 13% of CTR cases had a positive biopsy. There was a statistically significant difference in the incidence of amyloid deposition detected during biopsy in ECTR cases (3.5%) compared with OCTR cases (23%). CONCLUSIONS Biopsy performed during ECTR may result in a lower incidence of amyloid detection. Future basic science investigation may be necessary to determine histologic differences between tenosynovium proximal and distal to the leading edge of the TCL. When surgeons plan a biopsy during surgical release of the carpal tunnel, an open approach may be advantageous. TYPE OF STUDY/LEVEL OF EVIDENCE Prognostic II.
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Affiliation(s)
- Yagiz Ozdag
- Department of Orthopaedic Surgery, Geisinger Musculoskeletal Institute, Geisinger Commonwealth School of Medicine, Danville, PA
| | - Jessica L Koshinski
- Department of Orthopaedic Surgery, Geisinger Musculoskeletal Institute, Geisinger Commonwealth School of Medicine, Danville, PA
| | - Brendan J Carry
- Department of Cardiology, Heart Institute, Geisinger Health System, Danville, PA
| | - Jerad M Gardner
- Departments of Laboratory Medicine and Dermatology, Geisinger Health System, Danville, PA
| | - Victoria C Garcia
- Department of Orthopaedic Surgery, Geisinger Musculoskeletal Institute, Geisinger Commonwealth School of Medicine, Danville, PA
| | - C Liam Dwyer
- Department of Orthopaedic Surgery, Geisinger Musculoskeletal Institute, Geisinger Commonwealth School of Medicine, Danville, PA
| | - Anil Akoon
- Department of Orthopaedic Surgery, Geisinger Musculoskeletal Institute, Geisinger Commonwealth School of Medicine, Danville, PA
| | - Joel C Klena
- Department of Orthopaedic Surgery, Geisinger Musculoskeletal Institute, Geisinger Commonwealth School of Medicine, Danville, PA
| | - Louis C Grandizio
- Department of Orthopaedic Surgery, Geisinger Musculoskeletal Institute, Geisinger Commonwealth School of Medicine, Danville, PA.
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2
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Harinesan N, Silsby M, Simon NG. Carpal tunnel syndrome. HANDBOOK OF CLINICAL NEUROLOGY 2024; 201:61-88. [PMID: 38697747 DOI: 10.1016/b978-0-323-90108-6.00005-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
Median neuropathy at the wrist, commonly referred to as carpal tunnel syndrome (CTS), is the most common entrapment neuropathy. It is caused by chronic compression of the median nerve at the wrist within the space-limited carpal tunnel. Risk factors that contribute to the etiology of compression include female gender, obesity, work-related factors, and underlying medical conditions, such as hypothyroidism, pregnancy, and amyloidosis. The diagnosis is made on clinical grounds, although these can be confounded by anatomical variations. Electrodiagnostic studies, which are specific and sensitive in diagnosing CTS, support the diagnosis; however, a subgroup may present with normal results. The advent of imaging techniques, including ultrasound and MRI, further assists the diagnostic process. The management of CTS is divided into the nonsurgical approaches that include hand therapy, splinting and corticosteroid injection, and surgical decompression of the carpal tunnel. Although several surgical techniques have been developed, no one method is more effective than the other. Each of these management approaches are effective at providing symptom relief and are utilized at different severities of the condition. There is, however, a lack of consensus on standardized diagnostic criteria, as well as when and to whom to refer patients for surgery.
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Affiliation(s)
- Nimalan Harinesan
- Westmead Clinical School, University of Sydney, Sydney, NSW, Australia
| | - Matthew Silsby
- Westmead Clinical School, University of Sydney, Sydney, NSW, Australia
| | - Neil G Simon
- Northern Beaches Clinical School, Macquarie University, Sydney, NSW, Australia.
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3
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Aldinc E, Campbell C, Gustafsson F, Beveridge A, Macey R, Marr L, Summers C, Zhang D. Musculoskeletal manifestations associated with transthyretin-mediated (ATTR) amyloidosis: a systematic review. BMC Musculoskelet Disord 2023; 24:751. [PMID: 37740174 PMCID: PMC10517539 DOI: 10.1186/s12891-023-06853-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 09/04/2023] [Indexed: 09/24/2023] Open
Abstract
BACKGROUND Hereditary and wild-type transthyretin-mediated (ATTRv and ATTRwt) amyloidoses result from the misfolding of transthyretin and aggregation of amyloid plaques in multiple organ systems. Diagnosis of ATTR amyloidosis is often delayed due to its heterogenous and non-specific presentation. This review investigates the association of musculoskeletal (MSK) manifestations with ATTR amyloidosis and the delay from the onset of these manifestations to the diagnosis of ATTR amyloidosis. METHODS This systematic review utilized Medline and EMBASE databases. Search criteria were outlined using a pre-specified patient, intervention, comparator, outcome, time, study (PICOTS) criteria and included: amyloidosis, ATTR, and MSK manifestations. Publication quality was assessed utilizing Joanna Briggs Institute (JBI) critical appraisal checklists. The search initially identified 7,139 publications, 164 of which were included. PICOTS criteria led to the inclusion of epidemiology, clinical burden and practice, pathophysiology, and temporality of MSK manifestations associated with ATTR amyloidosis. 163 publications reported on ATTR amyloidosis and MSK manifestations, and 13 publications reported on the delay in ATTR amyloidosis diagnosis following the onset of MSK manifestations. RESULTS The MSK manifestation most frequently associated with ATTR amyloidosis was carpal tunnel syndrome (CTS); spinal stenosis (SS) and osteoarthritis (OA), among others, were also identified. The exact prevalence of different MSK manifestations in patients with ATTR amyloidosis remains unclear, as a broad range of prevalence estimates were reported. Moreover, the reported prevalence of MSK manifestations showed no clear trend or distinction in association between ATTRv and ATTRwt amyloidosis. MSK manifestations precede the diagnosis of ATTR amyloidosis by years, and there was substantial variation in the reported delay to ATTR amyloidosis diagnosis. Reports do suggest a longer diagnostic delay in patients with ATTRv amyloidosis, with 2 to 12 years delay in ATTRv versus 1.3 to 1.9 years delay in ATTRwt amyloidosis. CONCLUSION These findings suggest that orthopedic surgeons may play a role in the early diagnosis of and treatment referrals for ATTR amyloidosis. Detection of MSK manifestations may enable earlier diagnosis and administration of effective treatments before disease progression occurs.
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Affiliation(s)
| | | | - Finn Gustafsson
- Rigshopsitalet, University of Copenhagen, Copenhagen, Denmark
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4
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Martyn T, Rubio AC, Estep JD, Hanna M. Opportunities for Earlier Diagnosis and Treatment of Cardiac Amyloidosis. Methodist Debakey Cardiovasc J 2022; 18:27-39. [PMID: 36561083 PMCID: PMC9733170 DOI: 10.14797/mdcvj.1163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 10/07/2022] [Indexed: 12/12/2022] Open
Abstract
Despite the rapid expansion of noninvasive (nonbiopsy) diagnosis, contemporary patients with cardiac amyloidosis too often present with advanced features of disease, such as diminished quality of life, elevated natriuretic peptides, and advanced heart failure. Therapeutics for transthyretin cardiomyopathy (ATTR-CM) are most effective when administered before significant symptoms of cardiac dysfunction manifest, making early identification of affected individuals of paramount importance. Community engagement and ensuring that a broad range of clinicians have working knowledge of how to screen for ATTR-CM in everyday practice will be an important step in moving disease identification further upstream. However, reliance on the appropriate and timely diagnosis by individual clinicians may continue to underperform. This review highlights how targeted screening of special populations may facilitate earlier diagnosis. Systems of care that operationalize screening of high-risk subpopulations and prospective validation of novel approaches to ATTR-CM identification are needed.
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Affiliation(s)
- Trejeeve Martyn
- Robert and Suzanne Tomsich Department of Cardiovascular Medicine, George and Linda Kaufman Center for Heart Failure and Recovery, Cleveland Clinic, Cleveland, Ohio, US,Amyloidosis Center, Cleveland Clinic, Cleveland, Ohio, US
| | - Andres Carmona Rubio
- Robert and Suzanne Tomsich Department of Cardiovascular Medicine, George and Linda Kaufman Center for Heart Failure and Recovery, Cleveland Clinic, Cleveland, Ohio, US,Amyloidosis Center, Cleveland Clinic, Cleveland, Ohio, US
| | - Jerry D. Estep
- Amyloidosis Center, Cleveland Clinic, Cleveland, Ohio, US,Department of Cardiovascular Medicine, Cleveland Clinic Florida, Weston, Florida, US
| | - Mazen Hanna
- Robert and Suzanne Tomsich Department of Cardiovascular Medicine, George and Linda Kaufman Center for Heart Failure and Recovery, Cleveland Clinic, Cleveland, Ohio, US,Amyloidosis Center, Cleveland Clinic, Cleveland, Ohio, US
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5
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Koike H, Okumura T, Murohara T, Katsuno M. Multidisciplinary Approaches for Transthyretin Amyloidosis. Cardiol Ther 2021; 10:289-311. [PMID: 34089151 PMCID: PMC8177037 DOI: 10.1007/s40119-021-00222-w] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Indexed: 12/12/2022] Open
Abstract
Amyloidosis caused by systemic deposition of transthyretin (TTR) is called ATTR amyloidosis and mainly includes hereditary ATTR (ATTRv) amyloidosis and wild-type ATTR (ATTRwt) amyloidosis. Until recently, ATTRv amyloidosis had been considered a disease in the field of neurology because neuropathic symptoms predominated in patients described in early reports, whereas advances in diagnostic techniques and increased recognition of this disease revealed the presence of patients with cardiomyopathy as a predominant feature. In contrast, ATTRwt amyloidosis has been considered a disease in the field of cardiology. However, recent studies have suggested that some of the patients with ATTRwt amyloidosis present tenosynovial tissue complications, particularly carpal tunnel syndrome, as an initial manifestation of amyloidosis, necessitating an awareness of this disease among neurologists and orthopedists. Although histopathological confirmation of amyloid deposits has traditionally been considered mandatory for the diagnosis of ATTR amyloidosis, the development of noninvasive imaging techniques in the field of cardiology, such as echocardiography, magnetic resonance imaging, and nuclear imaging, enabled nonbiopsy diagnosis of this disease. The mechanisms underlying characteristic cardiac imaging findings have been deciphered by histopathological studies. Novel disease-modifying therapies for ATTR amyloidosis, such as TTR stabilizers, short interfering RNA, and antisense oligonucleotides, were initially approved for ATTRv amyloidosis patients with polyneuropathy. However, the indications for the use of these disease-modifying therapies gradually widened to include ATTRv and ATTRwt amyloidosis patients with cardiomyopathy. Since the coronavirus disease 2019 (COVID-19) pandemic, which is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, occurred, the minimization of hospital visits and telemedicine have become increasingly important. As older age and cardiovascular disease are major factors associated with increased disease severity and mortality of COVID-19, many ATTR amyloidosis patients are at increased risk of disease aggravation when they are infected with SARS-CoV-2. From this viewpoint, close interspecialty communication to determine the optimal interval of evaluation is needed for the management of patients with ATTR amyloidosis.
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Affiliation(s)
- Haruki Koike
- Department of Neurology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Takahiro Okumura
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Toyoaki Murohara
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masahisa Katsuno
- Department of Neurology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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6
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Wininger AE, Phelps BM, Le JT, Harris JD, Trachtenberg BH, Liberman SR. Musculoskeletal pathology as an early warning sign of systemic amyloidosis: a systematic review of amyloid deposition and orthopedic surgery. BMC Musculoskelet Disord 2021; 22:51. [PMID: 33419417 PMCID: PMC7796584 DOI: 10.1186/s12891-020-03912-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/23/2020] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Transthyretin and immunoglobulin light-chain amyloidoses cause amyloid deposition throughout various organ systems. Recent evidence suggests that soft tissue amyloid deposits may lead to orthopedic conditions before cardiac manifestations occur. Pharmacologic treatments reduce further amyloid deposits in these patients. Thus, early diagnosis improves long term survival. QUESTIONS/PURPOSES The primary purpose of this systematic review was to characterize the association between amyloid deposition and musculoskeletal pathology in patients with common orthopedic conditions. A secondary purpose was to determine the relationship between amyloid positive biopsy in musculoskeletal tissue and the eventual diagnosis of systemic amyloidosis. METHODS We performed a systematic review using PRISMA guidelines. Inclusion criteria were level I-IV evidence articles that analyzed light-chain or transthyretin amyloid deposits in common orthopedic surgeries. Study methodological quality, risk of bias, and recommendation strength were assessed using MINORS, ROBINS-I, and SORT. RESULTS This systematic review included 24 studies for final analysis (3606 subjects). Amyloid deposition was reported in five musculoskeletal pathologies, including carpal tunnel syndrome (transverse carpal ligament and flexor tenosynovium), hip and knee osteoarthritis (synovium and articular cartilage), lumbar spinal stenosis (ligamentum flavum), and rotator cuff tears (tendon). A majority of studies reported a mean age greater than 70 for patients with TTR or AL positive amyloid. CONCLUSIONS This systematic review has shown the presence of amyloid deposition detected at the time of common orthopedic surgeries, especially in patients ≥70 years old. Subtyping of the amyloid has been shown to enable diagnosis of systemic light-chain or transthyretin amyloidosis prior to cardiac manifestations. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Austin E Wininger
- Houston Methodist Orthopedics & Sports Medicine, 6445 Main Street, Outpatient Center, Suite 2500, Houston, TX, 77030, USA
| | - Brian M Phelps
- Houston Methodist Orthopedics & Sports Medicine, 6445 Main Street, Outpatient Center, Suite 2500, Houston, TX, 77030, USA
| | - Jessica T Le
- Houston Methodist Orthopedics & Sports Medicine, 6445 Main Street, Outpatient Center, Suite 2500, Houston, TX, 77030, USA
| | - Joshua D Harris
- Houston Methodist Orthopedics & Sports Medicine, 6445 Main Street, Outpatient Center, Suite 2500, Houston, TX, 77030, USA
| | - Barry H Trachtenberg
- Houston Methodist DeBakey Heart & Vascular Center, 6550 Fannin Street, Smith Tower, Suite 1901, Houston, TX, 77030, USA
| | - Shari R Liberman
- Houston Methodist Orthopedics & Sports Medicine, 6445 Main Street, Outpatient Center, Suite 2500, Houston, TX, 77030, USA.
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7
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Prior Carpal Tunnel Syndrome and Early Concomitant Echocardiographic Findings Among Patients With Cardiac Amyloidosis. J Card Fail 2020; 26:909-916. [DOI: 10.1016/j.cardfail.2020.06.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 05/22/2020] [Accepted: 06/16/2020] [Indexed: 01/15/2023]
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8
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Milandri A, Farioli A, Gagliardi C, Longhi S, Salvi F, Curti S, Foffi S, Caponetti AG, Lorenzini M, Ferlini A, Rimessi P, Mattioli S, Violante FS, Rapezzi C. Carpal tunnel syndrome in cardiac amyloidosis: implications for early diagnosis and prognostic role across the spectrum of aetiologies. Eur J Heart Fail 2020; 22:507-515. [PMID: 31975495 DOI: 10.1002/ejhf.1742] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 12/18/2019] [Accepted: 12/21/2019] [Indexed: 12/25/2022] Open
Abstract
AIMS We aimed to assess carpal tunnel syndrome (CTS) prevalence in transthyretin (TTR)-related and light-chain amyloidosis (AL), comparing it to the general population, adjusted for age and gender. In TTR-related amyloidosis (ATTR) we investigated (i) CTS prevalence in relation to genotype, cardiac amyloidosis (CA), age and gender; (ii) CTS role as an incremental risk factor for CA; (iii) temporal relationship between CTS and CA; and (iv) CTS prognostic role. METHODS AND RESULTS Data from 538 subjects (166 hereditary ATTR, 107 wild-type ATTR, 196 AL amyloidosis, and 69 TTR mutation carriers; 64% male, median age 62.4 years), evaluated at our centre (Bologna, Italy), were analysed and compared to a published cohort of 14.9 million people, in which incidence rates of CTS had been estimated. CTS prevalence was highest in ATTR patients with CA (20.3% vs. 4.1% in the general population), while it was comparable to the general population when CA was absent and in AL patients. CTS standardized incidence rates were markedly elevated in ATTR males in the eighth decade of life (13.08 in hereditary ATTR, 15.5 in wild-type ATTR). The risk of developing CA was greater in ATTR patients with CTS; the probability of having CTS was highest 5-9 years prior to CA diagnosis. CTS was an independent mortality risk factor in ATTR. CONCLUSIONS Compared to general population the adjusted prevalence of CTS is higher among elderly men with ATTR; CTS is a prognostic marker in ATTR, independently of cardiac involvement, and precedes CA diagnosis by 5-9 years. The awareness of this association and time delay offers the possibility of an early pre-clinical ATTR-CA diagnosis.
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Affiliation(s)
- Agnese Milandri
- Cardiology, Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Andrea Farioli
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | - Christian Gagliardi
- Cardiology, Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Simone Longhi
- Cardiology, Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Fabrizio Salvi
- Division of Neurology, IRCCS Institute of Neurological Sciences, Bellaria Hospital, Bologna, Italy
| | - Stefania Curti
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | - Serena Foffi
- Cardiology, Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Angelo Giuseppe Caponetti
- Cardiology, Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Massimiliano Lorenzini
- Cardiology, Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum, University of Bologna, Bologna, Italy.,University College London Institute for Cardiovascular Science and Barts Heart Centre, St. Bartholomew's Hospital, London, UK
| | - Alessandra Ferlini
- Section of Medical Genetics, Department of Diagnostic and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Paola Rimessi
- Section of Medical Genetics, Department of Diagnostic and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Stefano Mattioli
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | | | - Claudio Rapezzi
- Cardiology, Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum, University of Bologna, Bologna, Italy
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9
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Donnelly JP, Hanna M, Sperry BW, Seitz WH. Carpal Tunnel Syndrome: A Potential Early, Red-Flag Sign of Amyloidosis. J Hand Surg Am 2019; 44:868-876. [PMID: 31400950 DOI: 10.1016/j.jhsa.2019.06.016] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 06/17/2019] [Indexed: 02/02/2023]
Abstract
Carpal tunnel syndrome (CTS) can be caused by the deposition and accumulation of misfolded proteins called amyloid and is often an early manifestation of systemic amyloidosis. In patients undergoing surgery for idiopathic CTS, a recent study identified amyloidosis by tenosynovial biopsy in 10.2% of men older than 50 years and women older than 60 years; all positive patients had bilateral symptoms. These findings have led to a renewed interest in amyloidosis as an etiology of CTS. The 2 most common systemic amyloidoses, immunoglobulin light chain and transthyretin amyloidosis, affect the heart, nerves, and other organ systems throughout the body including the soft tissues. Patients with cardiac involvement of amyloidosis have an especially poor prognosis if the disease remains unrecognized and untreated. Early diagnosis is paramount, and patients classically present with cardiac disease several years after being operated on by a hand surgeon for carpal tunnel release. Herein, we present a review of amyloidosis as it pertains to CTS and an algorithm for the detection of amyloidosis in patients undergoing carpal tunnel release. Implementation of this straightforward algorithm will allow for early diagnosis of amyloidosis, a group of progressive and lethal diseases.
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Affiliation(s)
- Joseph P Donnelly
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Beachwood, OH
| | - Mazen Hanna
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Beachwood, OH
| | - Brett W Sperry
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Beachwood, OH; Mid America Heart Institute, Saint Luke's Hospital of Kansas City, Kansas City, MO
| | - William H Seitz
- Department of Orthopaedic Surgery, Orthopaedic and Rheumatologic Institute, Cleveland Clinic, Beachwood, OH.
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10
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Histopathologic Evaluation of Flexor Tenosynovium in Recurrent Carpal Tunnel Syndrome. Plast Reconstr Surg 2019; 143:169-175. [DOI: 10.1097/prs.0000000000005090] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Nakagawa M, Sekijima Y, Yazaki M, Tojo K, Yoshinaga T, Doden T, Koyama J, Yanagisawa S, Ikeda SI. Carpal tunnel syndrome: a common initial symptom of systemic wild-type ATTR (ATTRwt) amyloidosis. Amyloid 2016; 23:58-63. [PMID: 26852880 DOI: 10.3109/13506129.2015.1135792] [Citation(s) in RCA: 129] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Systemic wild-type ATTR (ATTRwt) amyloidosis is a prevalent aging-related disorder. However, a limited number of systemic ATTRwt amyloidosis patients have been diagnosed antemortem, and therefore, the prevalence of ATTRwt is underestimated. Here, we investigated clinical findings of a series of systemic ATTRwt amyloidosis patients with antemortem diagnosis. METHODS Thirty-one consecutive patients diagnosed with systemic ATTRwt amyloidosis at Shinshu University Hospital were included in this study. Systemic ATTRwt amyloidosis was diagnosed based on proven ATTR amyloid deposition in biopsy specimens and confirmation of wild-type TTR genotype. RESULTS The systemic ATTRwt amyloidosis patients consisted of 24 men and seven women, and mean age of onset was 69.8 ± 9.0 years. The most common initial symptom was carpal tunnel syndrome (CTS, 17 patients), followed by heart failure symptoms (14 patients). The mean age at diagnosis was 74.5 ± 8.3 years and the duration of illness from onset to diagnosis was 5.4 ± 4.4 years. Cardiogenic embolism and renal dysfunction are also frequently seen during the course of the disease. CONCLUSIONS CTS is the most common initial symptom of systemic ATTRwt amyloidosis. Our results suggest the possibility of systemic ATTRwt amyloidosis diagnosis at an early stage by carefully examining patients with CTS.
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Affiliation(s)
| | - Yoshiki Sekijima
- a Department of Medicine (Neurology and Rheumatology) .,b Institute for Biomedical Sciences
| | - Masahide Yazaki
- a Department of Medicine (Neurology and Rheumatology) .,b Institute for Biomedical Sciences
| | - Kana Tojo
- a Department of Medicine (Neurology and Rheumatology)
| | | | - Tadashi Doden
- a Department of Medicine (Neurology and Rheumatology)
| | - Jun Koyama
- c Department of Cardiovascular Medicine , and
| | - Shin Yanagisawa
- d Department of Radiology , Shinshu University School of Medicine , 3-1-1 Asahi, Matsumoto , Japan
| | - Shu-Ichi Ikeda
- a Department of Medicine (Neurology and Rheumatology) .,b Institute for Biomedical Sciences
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12
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Uchiyama S, Sekijima Y, Tojo K, Sano K, Imaeda T, Moriizumi T, Ikeda SI, Kato H. Effect of synovial transthyretin amyloid deposition on preoperative symptoms and postoperative recovery of median nerve function among patients with idiopathic carpal tunnel syndrome. J Orthop Sci 2014; 19:913-9. [PMID: 25146002 DOI: 10.1007/s00776-014-0635-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2014] [Accepted: 08/05/2014] [Indexed: 01/19/2023]
Abstract
BACKGROUND The clinical characteristics of wild-type transthyretin amyloid deposition among patients with carpal tunnel syndrome (CTS) have not been well investigated. METHODS One-hundred and seven patients with idiopathic CTS who underwent carpal tunnel release were enrolled. They underwent physical examination of the hand, nerve-conduction study, and magnetic resonance imaging (MRI) study of the wrist, and completed a patient-oriented questionnaire. The tests, except for MRI, were repeated 1, 3, and 6 months postoperatively. Synovial tissue was obtained during surgery and analyzed by Congo red and immunohistochemical staining. Ordinal logistic regression analysis was used to evaluate the significance of different clinical and subjective findings between patients with and without amyloid deposition. Postoperative improvements were also compared. RESULTS Wild-type transthyretin amyloid deposition was observed for 38 patients. Greater symptom severity and 2-point discrimination scores, and larger cross-sectional areas of the carpal tunnel, were significantly correlated with a larger amount of preoperative amyloid deposition. However, the presence and amount of preoperative amyloid deposition did not affect postoperative improvements in physical findings and nerve-conduction studies. CONCLUSIONS Although transthyretin amyloid deposition can worsen CTS symptoms, postoperative improvements were similar for patients with and without this deposition.
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Affiliation(s)
- Shigeharu Uchiyama
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Asahi 3-1-1, Matsumoto, 390-8621, Japan,
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13
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Gioeva Z, Urban P, Meliss RR, Haag J, Axmann HD, Siebert F, Becker K, Radtke HG, Röcken C. ATTR amyloid in the carpal tunnel ligament is frequently of wildtype transthyretin origin. Amyloid 2013; 20:1-6. [PMID: 23244293 DOI: 10.3109/13506129.2012.750604] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The carpal tunnel ligament often encloses transthyretin-derived (ATTR) amyloid deposits. In this study we tested the hypothesis that ATTR amyloid in the carpal tunnel ligament is most commonly of wildtype origin in a Caucasian population without endemic background of familial amyloid polyneuropathy. All resection specimens from the carpal tunnel ligament were retrieved from the Amyloid Registry of the University of Kiel spanning the period of 2004-2011 and dichotomized into two study groups: the first study group of 25 patients was obtained from diverse referring pathologists. The second group comprised a patient cohort of 73 patients obtained from a single-referring department of pathology. The selection of biopsies was based on the histological identification of amyloid by Congo red staining and polarization microscopy between crossed polars and immunohistochemical classification as ATTR amyloid. A novel anti-TTR-peptide antibody was raised in rabbits using a recombinant peptide (FHEHAEVVFTANDSGPRRYT) spanning residues 87-106 of the TTR protein. Amplification of the TTR exons 1, 2, 3 and 4 was done by a nested polymerase chain reaction approach. Ninety-eight biopsies were available from 98 patients, including 51 women and 47 men. All amyloid deposits showed strong immunoreactions with the novel anti-TTR peptide antibody. In 81 of 98 patients, genomic DNA was available. In 10 (12%) patients non-amyloidogenic TTR gene mutations were found with the following amino acid substitutions: p.G6S (normal allelic variant). A single patient carried a p.G6S and a p.M13I-variant. The remaining patients all showed wildtype sequence of the TTR gene (70 patients). No significant difference was found between the two study groups. ATTR amyloid in the carpal tunnel ligament is commonly of wildtype origin and genetic counseling is not mandatory in these patients.
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Affiliation(s)
- Zarina Gioeva
- Institute of Pathology, Christian-Albrechts-University Kiel , Kiel , Germany
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14
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Buxbaum JN. Evaluation of tafamidis as first-line therapeutic agent for transthyretin familial amyloidotic polyneuropathy. Degener Neurol Neuromuscul Dis 2012; 2:165-173. [PMID: 30890886 DOI: 10.2147/dnnd.s24624] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Almost 100 mutations in the human transthyretin (TTR) gene cause the autosomal dominant disorders of familial amyloidotic polyneuropathy (FAP) and familial amyloidotic cardiomyopathy. While these have been clinically classified as separate disorders, the peripheral and autonomic nervous systems and the heart are frequently involved in the same patient. Deposition of amyloid derived from a kinetically or thermodynamically unstable mutant TTR precursor produces an ascending sensorimotor polyneuropathy with marked autonomic involvement. Since 1990, treatment has been liver transplantation from a donor carrying two wild-type TTR genes, providing a crude form of gene therapy. Multiple studies have shown that small molecules fitting in the T4-binding pocket of TTR can stabilize the molecule, reducing its capacity to release the fibril precursor. Tafamidis is the first molecule to be tested in a placebo-controlled trial in patients with TTR-associated FAP. While the trial did not achieve its primary endpoints, it did stabilize TTR in vivo and had a favorable effect on some aspects of disease progression, particularly when administered early in the course. It may represent an alternative to liver transplantation, particularly in patients with early disease related to the V30M mutation. Longer-term studies are required to determine whether it represents a stabilizing or remittive form of treatment.
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Affiliation(s)
- Joel N Buxbaum
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA, USA,
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15
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On Typing Amyloidosis Using Immunohistochemistry. Detailled Illustrations, Review and a Note on Mass Spectrometry. ACTA ACUST UNITED AC 2012; 47:61-132. [DOI: 10.1016/j.proghi.2012.03.001] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Sekijima Y, Uchiyama S, Tojo K, Sano K, Shimizu Y, Imaeda T, Hoshii Y, Kato H, Ikeda SI. High prevalence of wild-type transthyretin deposition in patients with idiopathic carpal tunnel syndrome: a common cause of carpal tunnel syndrome in the elderly. Hum Pathol 2011; 42:1785-91. [PMID: 21733562 DOI: 10.1016/j.humpath.2011.03.004] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2011] [Revised: 03/01/2011] [Accepted: 03/16/2011] [Indexed: 10/18/2022]
Abstract
Carpal tunnel syndrome is the most common type of entrapment neuropathy. However, the cause of carpal tunnel syndrome remains unclear in most cases. Senile systemic amyloidosis, induced by wild-type transthyretin deposition, is a prevalent aging-related disorder and often accompanied by carpal tunnel syndrome. In this study, we measured the frequency of unrecognized wild-type transthyretin deposition in patients with idiopathic carpal tunnel syndrome. One hundred twenty-three patients with carpal tunnel syndrome, including 100 idiopathic patients, treated by carpal tunnel release surgery were analyzed. Tenosynovial tissues obtained at surgery were analyzed by Congo red and immunohistochemical staining. If staining for transthyretin was positive, the entire transthyretin gene was analyzed by direct DNA sequencing. We also analyzed tenosynovial tissues from 32 autopsy cases as controls. Thirty-four patients (34.0%) with idiopathic carpal tunnel syndrome showed amyloid deposition in the tenosynovial tissue, and all amyloid showed specific immunolabeling with antitransthyretin antibody. Direct DNA sequencing of the entire transthyretin gene did not reveal any mutations, indicating that all amyloid deposits were derived form wild-type transthyretin. Statistical analysis using logistic regression showed that the prevalence of transthyretin deposition in the idiopathic carpal tunnel syndrome group was significantly higher than that in controls (odds ratio, 15.8; 95% confidence interval, 3.3-5.7), and age and male sex were independent risk factors for transthyretin amyloid deposition. Our results demonstrate that wild-type transthyretin deposition is a common cause of carpal tunnel syndrome in elderly men. It is likely that many patients develop carpal tunnel syndrome as an initial symptom of senile systemic amyloidosis.
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Affiliation(s)
- Yoshiki Sekijima
- Department of Medicine (Neurology and Rheumatology), Shinshu University School of Medicine, Matsumoto 390-8621, Japan.
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17
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Uchiyama S, Itsubo T, Nakamura K, Kato H, Yasutomi T, Momose T. Current concepts of carpal tunnel syndrome: pathophysiology, treatment, and evaluation. J Orthop Sci 2010; 15:1-13. [PMID: 20151245 DOI: 10.1007/s00776-009-1416-x] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2009] [Accepted: 09/22/2009] [Indexed: 12/31/2022]
Abstract
The current concepts of carpal tunnel syndrome (CTS) with respect to its pathophysiology, treatment, and evaluation are discussed. With regard to the pathophysiology of idiopathic CTS, biomechanical studies to determine the kinematics of the flexor tendon, and the median nerve inside the carpal tunnel may provide valuable insights. Different degrees of excursion between the flexor tendons and the median nerve could cause strain and microdamage to the synovial tissue; this has been microscopically observed. A biomechanical approach for elucidating the events that trigger the development of CTS seems interesting; however, there are limitations to its applications. Endoscopic carpal tunnel release (ECTR) is a useful technique for achieving median nerve decompression. However, it is not considered superior to conventional open carpal tunnel release in terms of fast recovery of hand function. Unless the effect of inserting a cannula into the diseased carpal tunnel on the median nerve function is quantitatively elucidated, ECTR will not be regarded as a standard procedure for relieving the median nerve from chronic compression. The treatment of CTS should be evaluated on the basis of patient-oriented questionnaires as well as conventional instruments because these questionnaires have been validated and found to be highly responsive to the treatment. It should be noted that nerve conduction studies exclusively evaluate the function of the median nerve, whereas patient-oriented questionnaires take into account not only the symptoms of CTS but other accompanying pathologies as well, such as flexor tenosynovitis. In Japan, the number of CTS patients is expected to rise; this may be attributed to a general increase in the life-span of the Japanese and increase in the number of diabetic patients. Thus, more efforts should be directed toward elucidating the pathophysiology of so-called idiopathic CTS, so that new treatment strategies can be established for CTS of different pathologies.
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Affiliation(s)
- Shigeharu Uchiyama
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Japan
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18
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CHAMBERS JK, KANDA T, SHIRAI A, HIGUCHI K, IKEDA SI, UNE Y. Senile Systemic Amyloidosis in an Aged Savannah Monkey (Cercopithecus aethiops) with Tenosynovial Degeneration. J Vet Med Sci 2010; 72:657-9. [DOI: 10.1292/jvms.09-0394] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- James Kenn CHAMBERS
- Laboratory of Veterinary Pathology, School of Veterinary Medicine, Azabu University
| | - Takuya KANDA
- Laboratory of Veterinary Pathology, School of Veterinary Medicine, Azabu University
| | | | - Keiichi HIGUCHI
- Department of Aging Biology, Institute on Aging and Adaptation, Shinshu University Graduate School of Medicine
| | - Shu-ichi IKEDA
- Department of Medicine, Shinshu University School of Medicine
| | - Yumi UNE
- Laboratory of Veterinary Pathology, School of Veterinary Medicine, Azabu University
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19
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Non-senile wild-type transthyretin systemic amyloidosis presenting as bilateral carpal tunnel syndrome. J Peripher Nerv Syst 2008; 13:148-50. [DOI: 10.1111/j.1529-8027.2008.00170.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Takei YI, Hattori T, Gono T, Tokuda T, Saitoh S, Hoshii Y, Ikeda SI. Senile systemic amyloidosis presenting as bilateral carpal tunnel syndrome. Amyloid 2002; 9:252-5. [PMID: 12557754 DOI: 10.3109/13506120209114102] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
A 74-year-old woman who had developed numbness in both hands was diagnosed as having bilateral carpal and right cubital tunnel syndrome and underwent bilateral carpal and right cubital tunnel release. Transthyretin immunoreactive amyloid deposits were seen on specimens and were also detected in gastric, duodenal and ileal mucosal biopsies. The transthyretin gene analysis showed no mutation. This is a rare case of senile systemic amyloidosis presenting as carpal tunnel syndrome.
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Affiliation(s)
- Yo-ichi Takei
- Third Department of Medicine, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto 390-8621, Japan.
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21
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Affiliation(s)
- F P Cantatore
- Dipartimento di Medicina Interna e del Lavoro, Sezione di Reumatologia, Università di Bari, Italy
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22
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Affiliation(s)
- K I Nakamichi
- Department of Orthopaedic Surgery, Toranomon Hospital, Tokyo, Japan
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23
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Röcken C, Schwotzer EB, Linke RP, Saeger W. The classification of amyloid deposits in clinicopathological practice. Histopathology 1996; 29:325-35. [PMID: 8910040 DOI: 10.1111/j.1365-2559.1996.tb01416.x] [Citation(s) in RCA: 96] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A series of 104 biopsy cases with histopathological proof of amyloid, submitted to our department of pathology over the last 19 years, were re-examined. The survey investigated the medical indication for surgery, the origin and quality of the biopsy and the clinical information as documented on the request form for histopathological examination and in hospital records. Amyloid deposits were classified using antisera directed against five major amyloid fibril proteins, i.e. AA, ATTR, A lambda, A kappa and A beta 2M and optimal conditions were sought for the reliable and early characterization of amyloid disease in clinicopathological practice. This survey revealed that 98% of the biopsy cases already suffered from a disease which was either a cause or a result of amyloidosis. In only 2% of the biopsy cases was amyloidosis detected without any clinical indication. Immunohistochemical classification of the amyloid deposits and comparison with hospital records demonstrated diagnostic pitfalls such as immunostaining of amyloid by two or more antibodies recognizing different fibril proteins, and disagreement between immunohistochemical typing of amyloid and the initial clinical diagnosis. Based on these observations we assume that the characterization of amyloid disease and its biological significance is impossible in clinicopathological practice without clinical information or without immunohistochemical classification of the fibril protein in biopsy specimens. Different aspects of histopathological detection of AA- and AL-amyloidosis are discussed.
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Affiliation(s)
- C Röcken
- Department of Pathology, Marienkrankenhaus, Hamburg, Germany
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24
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Abstract
This is, to the best of our knowledge, the first report on amyloid deposits in menisci. Fragments of menisci gained by arthroscopy from 316 patients between 20 and 80 years of age were examined. Amyloid was found in 70% of the cases from male, as well as female patients. The amyloid amount found was always very small, but the deposits seemed to increase with age. Patients more than 50 years of age all had menisceal amyloid. Two types of deposits were observed: a)stroma-deposits in the deep central portions of the menisci (tiny dots of intensely stained amyloid and/or ill defined patches of low staining intensity) and b) surface associated deposits: band-like amyloid imbibition of the collagenous stroma immediately beneath the surface of the menisci but not deeper than 0.2 mm. In all cases, amyloid was resistant when pretreated by KMn04 and immunohistologically antisera against amyloid types AA, AB and AF were negative. 3/25 cases showed a reaction with an amyloid-lambda-antibody. We assume, that amyloid in menisci is a further type of localized senile amyloidosis.
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Affiliation(s)
- H J Rumpelt
- Institut für Pathologie, Städtisches Krankenhaus Heilbronn, FRG
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25
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Affiliation(s)
- E Pascali
- Institute of General Clinical Medicine, University of Trieste, Cattinara Hospital, Italy
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26
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Hazenberg BP, van Rijswijk MH. Clinical and therapeutic aspects of AA amyloidosis. BAILLIERE'S CLINICAL RHEUMATOLOGY 1994; 8:661-90. [PMID: 7954868 DOI: 10.1016/s0950-3579(05)80121-9] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Approach to the management of AA amyloidosis complicating RA. (A) In case of proteinuria or loss of renal function a rectal biopsy or a subcutaneous fat biopsy is a suitable screening method for the detection of amyloidosis. If in any doubt, try to ascertain the diagnosis by renal biopsy. Adequate staining with alkaline Congo red and preferably immunohistochemical staining with anti-AA antibodies should be performed. Beware of renal pathology other than amyloidosis even in the presence of a positive rectal biopsy. (B) A vigorous attempt to control disease activity of the RA should be made in order to eliminate the production of SAA, an acute phase protein. The response to treatment should be monitored by serial measurements of CRP and preferably SAA. (C) The function of some vital organs should be evaluated: (a) endogenous creatinine clearance and the extent of proteinuria; (b) electrocardiogram and optional echocardiography; (c) thyroid function and adrenocortical function; (d) intestinal absorption tests; (e) optional--SAP scintigraphy and turnover studies. (D) Attention should be given to adequate supportive treatment: (a) blood pressure control; (b) treatment of intercurrent infections; (c) corticosteroids during major surgical procedures; (d) pay attention to the possible effect of NSAID on proteinuria and renal function. (E) In case of total renal failure or uncontrollable proteinuria: (a) consider the possibility of primary renal transplantation; (b) otherwise regular haemodialysis is indicated.
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Affiliation(s)
- B P Hazenberg
- Division of Rheumatology, University Hospital Groningen, The Netherlands
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27
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Abstract
With use of a comprehensive medical records-linkage system, we identified the comorbid conditions and risk factors in the residents of Rochester, Minnesota, who had a diagnosis of carpal tunnel syndrome during 1961 through 1980. In 43.2% of the 1,016 patients, no associated conditions were found on review of the medical records, whereas associated conditions were documented in 56.8%. The most frequent of these conditions were Colles' fracture, rheumatoid arthritis, hormonal agents or oophorectomy (or both), diabetes mellitus, and, among men, occupations that involved excessive use of the hands. Rheumatoid arthritis, diabetes mellitus, and pregnancy were significantly more frequent among the study patients with carpal tunnel syndrome than in the general population of Rochester, Minnesota. The standardized morbidity ratio was 3.6 for rheumatoid arthritis, 2.3 for diabetes mellitus, and 2.5 for pregnancy. The population attributable risk for pregnancy among women 15 to 44 years old was 7.0%. The standardized morbidity ratio for polymyalgia rheumatica was not significantly increased.
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Affiliation(s)
- J C Stevens
- Department of Neurology, Mayo Clinic Scottsdale, Arizona 85259
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28
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Mohr W, Kuhn C, Linke RP, Wessinghage D. Deposition of amyloid of unknown origin in articular cartilage. VIRCHOWS ARCHIV. B, CELL PATHOLOGY INCLUDING MOLECULAR PATHOLOGY 1991; 60:259-62. [PMID: 1681615 DOI: 10.1007/bf02899555] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Articular cartilage, obtained from the large toe during hallux valgus operations in 37 patients, was investigated for the presence of amyloid by using the Congo red staining method. Amyloid deposits were demonstrated, particularly in the superficial layer of the cartilage, in 30 cases. This amyloid did not react immunohistochemically with any of the antibodies against the known five major amyloid types (AA, A lambda, A kappa, AF, AB). From these data it is concluded that hyaline cartilage in older individuals is prone to infiltration by an amyloid of a hitherto unidentified class. From the morphological observations there seems to be no correlation between amyloid deposits and the development of osteoarthrosis.
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Affiliation(s)
- W Mohr
- Abteilung Pathologie, Universität Ulm, Federal Republic of Germany
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29
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Wullbrand A, Saeger W, Missmahl HP, Voigt C, Linke RP. Amyloid in intervertebral discs of surgery and autopsy material. A new class of amyloid? VIRCHOWS ARCHIV. A, PATHOLOGICAL ANATOMY AND HISTOPATHOLOGY 1990; 416:335-41. [PMID: 2106750 DOI: 10.1007/bf01605294] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Intervertebral discs from 82 consecutive operations on herniation and 59 autopsies (one case with generalized amyloidosis) were studied. Amyloid deposits observed in surgical and autopsy specimens increased with age in both series. Degenerative changes were related to age and to amyloid deposits in autopsy, but not in surgical cases. Calcium pyrophosphate dihydrate deposits (often in proximity to amyloid deposits) were found in autopsy discs of six patients and in surgical specimens of three patients with previous operations on herniated discs. Antisera against amyloid fibril proteins of different types including AA-, A lambda-, A kappa, AF- and AB-types showed no reaction with disc amyloid. In one case with generalized A lambda-amyloidosis the disc amyloid was not of the A lambda-type. Based on our results, we suppose that disc amyloid is a form of localized senile amyloidosis - possibly representing a new class of amyloid limited to cartilage tissue.
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Affiliation(s)
- A Wullbrand
- Department of Pathology, Marienkrankenhaus Hamburg, Federal Republic of Germany
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30
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Amyloid Deposits Derived from Various Proteins — A Hallmark of Old Age. Gerontology 1989. [DOI: 10.1007/978-3-642-74996-4_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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