Abstract:
:The monoclonal gammopathies are a group of disorders characterized by proliferation of a single clone of plasma cells that produce a homogeneous, monoclonal (M) protein. The structure of immunoglobulins, relationship of normal (polyclonal) immunoglobulins to myeloma and macroglobulin (monoclonal) immunoglobulins, pattern of monoclonal immunoglobulin overproduction, and laboratory methods for the recognition and study of monoclonal proteins in the serum and urine are reviewed. Interpretation of these laboratory tests is emphasized. The demonstration of a monoclonal protein in the serum or urine of a patient suggests multiple myeloma or one of its variants (solitary plasmacytoma of bone, extramedullary plasmacytoma, or plasma cell leukemia); Waldenström's macroglobulinemia or, occasionally, lymphoma; heavy-chain diseases (gamma, alpha, and mu); primary amyloidosis; and monoclonal gammopathies of undertermined significance. The electrophoretic and immunoelectrophoretic patterns found in the monoclonal gammopathies are discussed. Periodic electrophoresis of the serum and urine is essential in the follow-up and management of patients with a monoclonal gammopathy.
journal_name
Mayo Clin Procjournal_title
Mayo Clinic proceedingsauthors
Kyle RA,Greipp PRkeywords:
subject
Has Abstractpub_date
1978-11-01 00:00:00pages
719-39issue
11eissn
0025-6196issn
1942-5546journal_volume
53pub_type
杂志文章abstract:OBJECTIVE:Given that patients with non-dialysis-dependent chronic kidney disease (NDD-CKD) have a disproportionately higher prevalence of hypothyroidism compared with their non-CKD counterparts, we sought to determine the association between thyroid status, defined by serum thyrotropin (TSH) levels, and mortality among...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章
doi:10.1016/j.mayocp.2018.01.024
更新日期:2018-05-01 00:00:00
abstract:OBJECTIVE:To determine how often unnecessary resting echocardiograms that are "not recommended" by clinical practice guidelines are performed in patients with stable chest pain and normal resting electrocardiograms (ECGs). PATIENTS AND METHODS:We performed a retrospective search of electronic medical records of all ou...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章
doi:10.1016/j.mayocp.2015.07.025
更新日期:2015-11-01 00:00:00
abstract:OBJECTIVE:To determine the effect of epinephrine on the QT interval in patients with genotyped long QT syndrome (LQTS). PATIENTS AND METHODS:Between May 1999 and April 2001, 37 patients (24 females) with genotyped LQTS (19 LQT1, 15 LQT2, 3 LQT3, mean age, 27 years; range, 10-53 years) from 21 different kindreds and 27...
journal_title:Mayo Clinic proceedings
pub_type: 临床试验,杂志文章
doi:10.4065/77.5.413
更新日期:2002-05-01 00:00:00
abstract:FINDINGS:The prostate-specific antigen (PSA) level alone does not facilitate precise pathologic staging on an individual basis, although advanced stage tends to correlate with an increased PSA level. The staging accuracy of PSA, however, can be enhanced by considering the variables of tumor grade and clinical stage. St...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章,评审
doi:10.1016/s0025-6196(12)61615-2
更新日期:1994-01-01 00:00:00
abstract::Vitamin K antagonists were the only class of oral anticoagulants available to clinicians for decades. However, with the US Food and Drug Administration approval of new oral anticoagulants, such as dabigatran, rivaroxaban, and apixaban, clinicians now have a broader choice. Given the recent approval and availability of...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章,评审
doi:10.1016/j.mayocp.2013.03.006
更新日期:2013-05-01 00:00:00
abstract::Aerobic exercise training has been used as part of the treatment for a variety of chronic disorders, most notably cardiovascular disease. In order to determine the feasibility and utility of regular exercise after renal transplantation, the responses of 10 patients to graded exercise testing were compared before train...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章
doi:10.1016/s0025-6196(12)62329-5
更新日期:1987-09-01 00:00:00
abstract:OBJECTIVE:To investigate the incidence and risk of adverse clinical outcomes in a "real-world" cohort of patients with atrial fibrillation (AF) anticoagulated with vitamin K antagonists (VKAs) from the Murcia AF Project in comparison with the warfarin arm of the randomized clinical trial (RCT) AMADEUS (Evaluating the U...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章
doi:10.1016/j.mayocp.2018.01.028
更新日期:2018-08-01 00:00:00
abstract::Brugada syndrome (BrS) is a common occult cause of sudden cardiac arrest in otherwise healthy-appearing adults. The pathognomonic electrocardiographic pattern may be unmasked only by certain medications, many of which are unknown. We report a case of a depressed but otherwise healthy man with an asymptomatic right bun...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章
doi:10.1016/j.mayocp.2014.08.010
更新日期:2014-11-01 00:00:00
abstract::In the three major morphologic groups of lupus nephritis--diffuse, focal proliferative, and membranous--glomerular deposition of immunoglobulins is usually a combination of IgG, IgM, and IgA and is not a good indicator of initial renal severity or outcome. In this study of 60 patients with systemic lupus erythematosus...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章
doi:
更新日期:1978-06-01 00:00:00
abstract::We describe three critically ill patients who displayed indirect evidence of transient corticotropin deficiency. All these patients were elderly, were poorly nourished, and had unexplained hypotension intraoperatively or immediately postoperatively. During the hypotensive episodes, they had inappropriately low plasma ...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章
doi:10.1016/s0025-6196(12)60188-8
更新日期:1993-05-01 00:00:00
abstract:OBJECTIVE:To evaluate the association between coffee consumption and mortality from all causes and from cardiovascular disease. PATIENTS AND METHODS:Data from the Aerobics Center Longitudinal Study representing 43,727 participants with 699,632 person-years of follow-up were included. Baseline data were collected by an...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章
doi:10.1016/j.mayocp.2013.06.020
更新日期:2013-10-01 00:00:00
abstract::Advances in liver transplantation continue to evolve but are hampered by continued increasing shortages in donor organs. This has resulted in a high incidence of patients dying while on the United Network for Organ Sharing waiting list. Indeed, we continue to assess ways of expanding the donor pool by using marginal d...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章,评审
doi:10.4065/78.2.197
更新日期:2003-02-01 00:00:00
abstract:OBJECTIVE:To elucidate the long-term clinical behavior, treatment, and outcomes of sporadic facial nerve schwannoma (FNS) in a large cohort of patients managed in the post-magnetic resonance imaging era. PATIENTS AND METHODS:Retrospective review at a single tertiary health care system (January 1, 1990, through Decembe...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章
doi:10.1016/j.mayocp.2016.07.007
更新日期:2016-11-01 00:00:00
abstract::Physicians must be able to recognize stroke caused by a mendelian or mitochondrial disorder. Some genetic disorders such as sickle cell anemia and Fabry disease have proven disease-specific treatments, whereas others have no effective treatment, including cerebral autosomal dominant arteriopathy with subcortical infar...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章,评审
doi:10.1016/S0025-6196(11)62969-8
更新日期:2005-01-01 00:00:00
abstract::Traditional treatments for men with localized prostate cancer have included both surgical removal and radiation therapy, with their potential adverse effects on patient quality of life. Thus, there has been increasing interest in the development of minimally invasive procedures that use various technologies to deliver...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章,评审
doi:10.4065/79.12.1547
更新日期:2004-12-01 00:00:00
abstract::Management of a solitary liver mass necessitates reliable distinction between primary hepatocellular carcinoma and metastatic lesions. The histologic differentiation can be difficult even with special stains such as alpha-fetoprotein, cytokeratin, and carcinoembryonic antigen. Albumin is a specific product of hepatocy...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章,评审
doi:10.4065/73.6.533
更新日期:1998-06-01 00:00:00
abstract::THE purpose of this study was to determine the difference in prognosis among patients with transient ischemic attacks (TIA) in the carotid arterial system and those with TIA in the vertebral-basilar arterial system. Nearly twice as many patients had TIA in the carotid system as had TIA in the vertebral-basilar system....
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章
doi:
更新日期:1977-02-01 00:00:00
abstract::Fibromyalgia is the currently preferred term for widespread musculoskeletal pain, typically accompanied by other symptoms such as fatigue, memory problems, and sleep and mood disturbances, for which no alternative cause can be identified. Earlier there was some doubt about whether there was an "organic basis" for thes...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章,评审
doi:10.1016/j.mayocp.2015.03.014
更新日期:2015-05-01 00:00:00
abstract::Clinical decisions are increasingly driven by evidence-based recommendations of guideline groups, which aim to be based on the highest quality knowledge-randomized clinical trials (RCTs) and meta-analyses. Although RCTs provide the best assessment of the overall value of a therapy, high-quality evidence from RCTs is o...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章
doi:10.1016/j.mayocp.2013.07.012
更新日期:2013-10-01 00:00:00
abstract:OBJECTIVE:To compare health care usage between suicide decedents and living controls in the year before suicide in a large representative US population. PATIENTS AND METHODS:Cases (n=1221) and controls (n=3663) belonged to an integrated health care system from January 1, 2009, through December 31, 2014. Cases and cont...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章
doi:10.1016/j.mayocp.2019.04.037
更新日期:2019-10-01 00:00:00
abstract:OBJECTIVE:To determine the effect of application of back supports on back strength in subjects with osteoporosis. DESIGN:In a prospective, randomized, controlled study, we compared compliance and evaluated changes in back strength in 45 women with osteoporosis who were older than 40 years of age and were randomly assi...
journal_title:Mayo Clinic proceedings
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.4065/71.3.235
更新日期:1996-03-01 00:00:00
abstract:OBJECTIVE:To ascertain the usefulness of bone marrow and cerebrospinal fluid (CSF) examinations in identifying or predicting relapse in children with acute lymphoblastic leukemia (ALL) before discontinuation of chemotherapy. MATERIAL AND METHODS:We retrospectively reviewed the medical records of 113 children with ALL ...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章
doi:10.4065/71.9.854
更新日期:1996-09-01 00:00:00
abstract::In a prospective study of 10 patients who underwent liver transplantation and 10 patients who underwent cholecystectomy, we analyzed the postoperative analgesic requirements and the resultant plasma morphine concentrations. Analgesia was more intense, with less medication, and the plasma morphine concentration was sig...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章
doi:10.1016/s0025-6196(12)65257-4
更新日期:1989-03-01 00:00:00
abstract:OBJECTIVE:To investigate presenting signs and symptoms of ovarian cancer and stage of tumor in a community cohort of women with the diagnosis of ovarian cancer. PATIENTS AND METHODS:We reviewed retrospectively the medical records of all women who sought primary and specialty care in Olmsted County, Minnesota, between ...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章
doi:10.4065/79.10.1277
更新日期:2004-10-01 00:00:00
abstract:OBJECTIVE:To review the diagnostic evaluation and the clinical course of patients with pretruncal nonaneurysmal subarachnoid hemorrhage. MATERIAL AND METHODS:The study population consisted of a consecutive series of patients with a pretruncal nonaneurysmal subarachnoid hemorrhage encountered at Mayo Clinic Rochester d...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章
doi:10.4065/73.8.745
更新日期:1998-08-01 00:00:00
abstract:OBJECTIVE:To determine whether a diet of high saturated fat and avoidance of starch (HSF-SA) results in weight loss without adverse effects on serum lipids in obese nondiabetic patients. PATIENTS AND METHODS:Twenty-three patients with atherosclerotic cardiovascular disease participated in a prospective 6-week trial at...
journal_title:Mayo Clinic proceedings
pub_type: 临床试验,杂志文章
doi:10.4065/78.11.1331
更新日期:2003-11-01 00:00:00
abstract::The penicillin family of antibiotics remains an important part of our antimicrobial armamentarium. In general, these agents have bactericidal activity, excellent distribution throughout the body, low toxicity, and efficacy against infections caused by susceptible bacteria. The initial introduction of aqueous penicilli...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章,评审
doi:10.4065/74.3.290
更新日期:1999-03-01 00:00:00
abstract::Prospective data and follow-up information were collected on the initial 200 patients who underwent laparoscopic cholecystectomy at the Mayo Clinic. The operation was completed laparoscopically in all but five patients, who required conversion to laparotomy because of dense scarring or stones in the common bile duct. ...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章
doi:10.1016/s0025-6196(12)60390-5
更新日期:1992-05-01 00:00:00
abstract::In a retrospective analysis, 63 participants in a cardiac rehabilitation-preventive cardiology program were identified as having low blood concentrations (mean, 34 mg/dl) of high-density lipoprotein cholesterol (HDL-C) and a mean total cholesterol level of 223 mg/dl after 3 months of hygienic measures (aerobic exercis...
journal_title:Mayo Clinic proceedings
pub_type: 临床试验,杂志文章
doi:10.1016/s0025-6196(12)60824-6
更新日期:1992-09-01 00:00:00
abstract::Myoclonus is defined as sudden, brief, shocklike, involuntary movements caused by muscular contractions or inhibitors. Myoclonic movements have now been recognized to have many possible variants and pathophysiologic features. Myoclonus may arise from several sites within the neuraxis, of which the cortex and brain ste...
journal_title:Mayo Clinic proceedings
pub_type: 杂志文章,评审
doi:10.1016/S0025-6196(11)63006-1
更新日期:1996-07-01 00:00:00