1
|
May RM, Cassol C, Hannoudi A, Larsen CP, Lerma E, Haun RS, Braga JR, Hassen SI, Wilson J, VanBeek C, Vankalakunti M, Barnum L, Walker PD, Bourne TD, Messias NC, Ambruzs JM, Boils CL, Sharma SS, Cossey LN, Baxi PV, Palmer M, Zuckerman J, Walavalkar V, Urisman A, Gallan A, Al-Rabadi LF, Rodby R, Luyckx V, Espino G, Santhana-Krishnan S, Alper B, Lam SG, Hannoudi GN, Matthew D, Belz M, Singer G, Kunaparaju S, Price D, Sauabh C, Rondla C, Abdalla MA, Britton ML, Paul S, Ranjit U, Bichu P, Williamson SR, Sharma Y, Gaspert A, Grosse P, Meyer I, Vasudev B, El Kassem M, Velez JCQ, Caza TN. A multi-center retrospective cohort study defines the spectrum of kidney pathology in Coronavirus 2019 Disease (COVID-19). Kidney Int 2021; 100:1303-1315. [PMID: 34352311 PMCID: PMC8328528 DOI: 10.1016/j.kint.2021.07.015] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 07/14/2021] [Accepted: 07/23/2021] [Indexed: 12/12/2022]
Abstract
Kidney failure is common in patients with Coronavirus Disease-19 (COVID-19) resulting in increased morbidity and mortality. In an international collaboration, 284 kidney biopsies were evaluated to improve understanding of kidney disease in COVID-19. Diagnoses were compared to five years of 63,575 native biopsies prior to the pandemic and 13,955 allograft biopsies to identify diseases increased in patients with COVID-19. Genotyping for APOL1 G1 and G2 alleles was performed in 107 African American and Hispanic patients. Immunohistochemistry for SARS-CoV-2 was utilized to assess direct viral infection in 273 cases along with clinical information at the time of biopsy. The leading indication for native biopsy was acute kidney injury (45.4%), followed by proteinuria with or without concurrent acute kidney injury (42.6%). There were more African American patients (44.6%) than patients of other ethnicities. The most common diagnosis in native biopsies was collapsing glomerulopathy (25.8%) which associated with high-risk APOL1 genotypes in 91.7% of cases. Compared to the five-year biopsy database, the frequency of myoglobin cast nephropathy and proliferative glomerulonephritis with monoclonal IgG deposits was also increased in patients with COVID-19 (3.3% and 1.7%, respectively), while there was a reduced frequency of chronic conditions (including diabetes mellitus, IgA nephropathy, and arterionephrosclerosis) as the primary diagnosis. In transplants, the leading indication was acute kidney injury (86.4%), for which rejection was the predominant diagnosis (61.4%). Direct SARS-CoV-2 viral infection was not identified. Thus, our multi-center large case series identified kidney diseases that disproportionately affect patients with COVID-19, demonstrated a high frequency of APOL1 high-risk genotypes within this group, with no evidence of direct viral infection within the kidney.
Collapse
Affiliation(s)
- Rebecca M May
- Arkana Laboratories, 10810 Executive Center Drive #100, Little Rock AR USA 72211
| | - Clarissa Cassol
- Arkana Laboratories, 10810 Executive Center Drive #100, Little Rock AR USA 72211
| | - Andrew Hannoudi
- University of Michigan, 500 S State Street, Ann Arbor, MI USA 48109
| | - Christopher P Larsen
- Arkana Laboratories, 10810 Executive Center Drive #100, Little Rock AR USA 72211
| | - Edgar Lerma
- University of Illinois at Chicago College of Medicine / Advocate Christ Medical Center, Department of Internal Medicine, 1853 W Polk St, Oak Lawn IL USA 60612
| | - Randy S Haun
- Arkana Laboratories, 10810 Executive Center Drive #100, Little Rock AR USA 72211
| | - Juarez R Braga
- University of Arkansas for Medical Sciences, Nephrology Division, 4301 W Markham St, Little Rock, AR USA 72205
| | - Samar I Hassen
- Arkana Laboratories, 10810 Executive Center Drive #100, Little Rock AR USA 72211
| | - Jon Wilson
- Arkana Laboratories, 10810 Executive Center Drive #100, Little Rock AR USA 72211
| | - Christine VanBeek
- AmeriPath Laboratories, Pathology, 225 N.E. 97(th) St #600, Oklahoma City OK USA 73114
| | - Mahesha Vankalakunti
- Manipal Hospital - Bangalore, Department of Pathology, 98 HAL Old Airport Rd, Bangalore, Karnataka India 560017
| | - Lilli Barnum
- Arkana Laboratories, 10810 Executive Center Drive #100, Little Rock AR USA 72211
| | - Patrick D Walker
- Arkana Laboratories, 10810 Executive Center Drive #100, Little Rock AR USA 72211
| | - T David Bourne
- Arkana Laboratories, 10810 Executive Center Drive #100, Little Rock AR USA 72211
| | - Nidia C Messias
- Arkana Laboratories, 10810 Executive Center Drive #100, Little Rock AR USA 72211
| | - Josephine M Ambruzs
- Arkana Laboratories, 10810 Executive Center Drive #100, Little Rock AR USA 72211
| | - Christie L Boils
- Arkana Laboratories, 10810 Executive Center Drive #100, Little Rock AR USA 72211
| | - Shree S Sharma
- Arkana Laboratories, 10810 Executive Center Drive #100, Little Rock AR USA 72211
| | - L Nicholas Cossey
- Arkana Laboratories, 10810 Executive Center Drive #100, Little Rock AR USA 72211
| | - Pravir V Baxi
- Rush University Medical Center, Nephrology Division, 1620 W. Harrison St, Chicago IL USA 60612
| | - Matthew Palmer
- University of Pennsylvania Perelman School of Medicine, Department of Pathology, 3400 Civic Center Blvd, Philadelphia PA USA 19104
| | - Jonathan Zuckerman
- University of California Los Angeles Health System, Department of Pathology and Laboratory Medicine, 140833 Le Conte Ave, Los Angeles, CA USA 90095
| | - Vighnesh Walavalkar
- UCSF Medical Center, Department of Pathology, 505 Panassus Avenue, CA USA 92103
| | - Anatoly Urisman
- UCSF Medical Center, Department of Pathology, 505 Panassus Avenue, CA USA 92103
| | - Alexander Gallan
- Medical College of Wisconsin, 9200 W. Wisconsin Avenue, WDL Building L73, Milkaukee, WI USA 53226
| | - Laith F Al-Rabadi
- University of Utah School of Medicine, 50 N Medical Drive, Salt Lake City UT 84132
| | - Roger Rodby
- Rush University Medical Center, Nephrology Division, 1620 W. Harrison St, Chicago IL USA 60612
| | - Valerie Luyckx
- University of Zurich, Department of Pathology and Molecular Biology, University Hospital Zurich, Schmelzberstrasse 8091, Zurich, Switzerland; Brigham and Women's Hospital, Renal Division, 75 Francis Street, Boston, MA USA 02115
| | - Gusavo Espino
- Albuquerque Nephrology Associates, 4333 Pan American Fwy NE, Albuquerque, NM USA 87107
| | | | - Brent Alper
- Tulane University School of Medicine, Tulane University Hypertension and Renal Center of Excellence, 6823 St. Charles Avenue, New Orleans, LA USA 70118; Tulane School of Medicine, 1430 Tulane Ave, New Orleans, LA USA 70112
| | - Son G Lam
- Nephrology and Hypertension Associated LTD, 1790 Barron Street, Oxford, MS USA 38655
| | - Ghadeer N Hannoudi
- Michigan Kidney Consultants, 44200 Woodward Ave, Suite 209, Pontiac, MI USA 48341
| | - Dwight Matthew
- Shoals Kidney & Hypertension Center, 422 East Dr Hicks Boulevard, Suite A, Florence, AL USA 35630
| | - Mark Belz
- Iowa Kidney Physicians PC, 1215 Pleasant Street, Suite 100, Des Moines, IA USA 50309
| | - Gary Singer
- Midwest Nephrology Associates, 70 Jungermann Circle, Suite 405, St. Peters, MO USA 63376
| | - Srikanth Kunaparaju
- Richmond Nephrology Associates, 7001 West Broad Street, Suite A, Richmond, VA USA 23294
| | - Deborah Price
- Nephrology Associates of NE Florida, 2 Shircliff Way DePaul Bldg Suite 700, Jacksonville, FL USA 32204
| | - Chawla Sauabh
- Northwest Indiana Nephrology, 6061 Broadway, Merrillville, IN USA 46410
| | - Chetana Rondla
- Georgia Nephrology, 595 Hurricane Shoals Road NW, Suite 100, Lawrenceville, GA USA 30046
| | - Mazen A Abdalla
- The Kidney Clinic, 2386 Clower Street, Suite C105, Snellville, GA USA 30078
| | - Marcus L Britton
- Nephrology & Hypertension Associates LTD, 1542 Medical Park Circle, Tupelo, MS USA 38801
| | - Subir Paul
- Shoals Kidney & Hypertension Center, 422 East Dr Hicks Boulevard, Suite A, Florence, AL USA 35630
| | - Uday Ranjit
- Nephrology Associates of Central Florida, 2501 N Orange Avenue #53, Orlando, FL USA 32804
| | - Prasad Bichu
- Nephrology Associates of Tidewater Ltd., Norfolk, VA USA 23510
| | | | - Yuvraj Sharma
- Henry Ford Hospital, 2799 W Grand Blvd, Detroit, MI USA 48202
| | - Ariana Gaspert
- Kantonal Hospital of Graubunden, Loestrasse 170, CH-7000, Chur, Switzerland
| | - Phillipp Grosse
- University of Zurich, Department of Pathology and Molecular Biology, University Hospital Zurich, Schmelzberstrasse 8091, Zurich, Switzerland
| | - Ian Meyer
- Mt Auburn Nephrology, 8260 Pine Road, Cincinnati OH USA 45236
| | - Brahm Vasudev
- Medical College of Wisconsin, 9200 W. Wisconsin Avenue, WDL Building L73, Milkaukee, WI USA 53226
| | - Mohamad El Kassem
- Mohamad El Kassem MD (private practice), Nephrology, Coral Springs, FL USA
| | - Juan Carlos Q Velez
- Ochsner Health System, Deparment of Nephrology, 1514 Jefferson Hwy, New Orleans LA USA 70121; Ochsner Clinical School, The University of Queensland (Australia), Department of Nephrology, St. Lucia, QLD, AUS
| | - Tiffany N Caza
- Arkana Laboratories, 10810 Executive Center Drive #100, Little Rock AR USA 72211.
| |
Collapse
|
2
|
Ahuir-Torres JI, Simandjuntak S, Bausch N, Farrar A, Webb S, Nash A, Thomas B, Muna J, Jonsson C, Matthew D. Corrosion threshold data of metallic materials in various operating environment of offshore wind turbine parts (tower, foundation, and nacelle/gearbox). Data Brief 2019; 25:104207. [PMID: 31440542 PMCID: PMC6699462 DOI: 10.1016/j.dib.2019.104207] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 05/30/2019] [Accepted: 06/25/2019] [Indexed: 11/29/2022] Open
Abstract
This paper outlines corrosion thresholds for different environmental conditions of metallic materials commonly used in the tower, foundation, and nacelle/gearbox of an offshore wind turbine. These threshold values were derived from laboratory corrosion testing employing electrochemical analysis techniques, using the media/solvents that are representative to the operating environment of those wind turbine parts, such as seawater, grease, oils/lubricants, or their combination, at room temperature and at 328K. These values can provide an indication when general/local corrosion or protective film/surface damages have occurred. They can thus be utilised for detecting and monitoring corrosion at certain locations in the wind turbine structure. The presented data have been verified and validated to ensure their repeatability and reliability by means of numerous laboratory tests in accordance to the relevant engineering test standards and an extensive literature/published data review.
Collapse
Affiliation(s)
| | - S Simandjuntak
- School of Mechanical and Design Engineering, United Kingdom
| | - N Bausch
- School of Energy and Electronic Engineering, University of Portsmouth, Anglesea Road, Portsmouth, PO1 3DJ, United Kingdom
| | - A Farrar
- School of Energy and Electronic Engineering, University of Portsmouth, Anglesea Road, Portsmouth, PO1 3DJ, United Kingdom
| | - S Webb
- School of Mechanical and Design Engineering, United Kingdom
| | - A Nash
- Avonwood Developments Ltd, Bournemouth, BH21 7ND, United Kingdom
| | - B Thomas
- Avonwood Developments Ltd, Bournemouth, BH21 7ND, United Kingdom
| | - J Muna
- Avanti Communications, London, EC4V 6EB, United Kingdom
| | - C Jonsson
- Avanti Communications, London, EC4V 6EB, United Kingdom
| | - D Matthew
- Avanti Communications, London, EC4V 6EB, United Kingdom
| |
Collapse
|
3
|
Varanasi S, Wright I, Hussain W, Bowers R, Slater T, Sengupta A, Porter B, Hussein A, Chu G, Siddiqui M, Man S, Somani R, Sandilands A, Stafford P, Ng G, Luther V, Young Kim M, Benfield A, Tanner M, Lefroy D, Koa-Wing M, Lim P, Linton N, Davies D, Peters N, Kanagaratnam P, Moore P, Whinnett Z, Thakrar D, Iacovides S, Paisey J, Balasubramaniam R, Sopher SM, Saunderson C, Moyles C, Blackburn Y, Morley C, Jamil H, Schlosshan D, Kearney M, Witte K, Lambden C, Woodcock T, Matthew D, Hashmy S, Kaur M, Kaba A, Grant R, Unger-Graeber B, Khan S, Das M, Wynn G, Morgan M, Waktare J, Hall M, Modi S, Snowdon R, Todd D, Gupta D. MODERATED POSTERS (1)43P WAVE DURATION & SPECTRAL ANALYSIS OF SIGNAL AVERAGED P WAVE: CAN THIS PREDICT RECURRENCE OF PARAOXYSMAL ATRIAL FIBRILLATION AFTER PULMONARY VEIN SIOLATION? A PROSPECTIVE STUDY44ATP INDUCED SLOW VF - A MECHANISM TO EXPLAIN THE ASSOCIATION BETWEEN ATP AND INCREASED MORTALITY45THE USE OF A HANDHELD DEVICE IN IDENTIFYING ATRIAL FIBRILLATION PATIENTS DURING FLU VACCINATION CLINICS46DELIVERY OF A FULL EP SERVICE FROM A DISTRICT GENERAL HOSPITAL SETTING: OUTCOMES FROM A SINGLE CENTRE47THE PREVALENCE OF SODIUM AND FLUID DEPLETION IN PATIENTS WITH RECURRENT SYNCOPE OF PRESUMED HYPOTENSIVE ORIGIN: A SINGLE CENTRE EXPERIENCE48ECHOCARDIOGRAPHY AND RISK STRATIFICATION FOR ICD IMPLANTATION AFTER ST-ELEVATION MYOCARDIAL INFARCTION:OPPORTUNITIES FOR IMPROVEMENT49THE QUALITY AND OUTCOMES FRAMEWORK DATA UNDERESTIMATES AF PREVALENCE AND OVERESTIMATES RATES OF APPROPRIATE THROMBOEMBOLIC PROPHYLAXIS50THE RELATIONSHIP BETWEEN THE EFFECTIVE REFRACTORY PERIOD OF RECONNECTED PULMONARY VEINS AT REPEAT ELECTROPHYSIOLOGY STUDY AND RECURRENCE OF ATRIAL TACHYCARRHYTHMIA BEYOND ONE MONTH AFTER PULMONARY VEIN ISOLATION. Europace 2016. [DOI: 10.1093/europace/euw268] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
4
|
Tanny S, Matthew D, Sperling N, Parsai E. TH-CD-304-05: Correction Factor Measurements for Multiple Detectors Used in Small Field Dosimetry On the Varian Edge Radiosurgery System. Med Phys 2015. [DOI: 10.1118/1.4926211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
5
|
Czito B, Mulcahy M, Schelman W, Vaghefi H, Gayle J, Deluca A, Xiong H, Munasinghe W, Matthew D, Holen K, Michael M. The Safety and Tolerability of Veliparib (V) plus Capecitabine (C) and Radiation (RT) in Subjects with Locally Advanced Rectal Cancer (LARC): Results of a Phase 1b Study. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.116] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
6
|
Hope R, Blackburn RM, Verlander NQ, Johnson AP, Kearns A, Hill R, Hopkins S, Sheridan E, Livermore DM, Scarborough M, Majumdar S, Cunniffe J, Farrington M, Gouliouris T, Marodi C, Godwin P, Tuck A, Warren R, Coe P, Hassan I, Mannion P, Loudon K, Youngs E, Johnson A, Lee M, Weston V, Guleri A, Howe R, Matthew D, Cotterill S, Todd N, Patel B, Mlangeni D, Stockley JM, Spencer R, Gardner J, Thwaites G, Kirby A, Hopkins S, Crook D, Llewellyn M, Price J, Scarborough M, Morris Jones S, Tilley R. Vancomycin MIC as a predictor of outcome in MRSA bacteraemia in the UK context. J Antimicrob Chemother 2013; 68:2641-7. [DOI: 10.1093/jac/dkt234] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
|
7
|
Matthew D, Oxman D, Djekidel K, Ahmed Z, Sherman M. Abdominal Compartment Syndrome and Acute Kidney Injury Due to Excessive Auto–Positive End-Expiratory Pressure. Am J Kidney Dis 2013; 61:285-8. [DOI: 10.1053/j.ajkd.2012.06.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Accepted: 06/30/2012] [Indexed: 11/11/2022]
|
8
|
Matthew D, Rosen S, Sandercock G, Brodie D. (21) Heart rate variability measured by a novel device in participants with heart failure. Atherosclerosis 2012. [DOI: 10.1016/j.atherosclerosis.2012.06.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
9
|
Matthew D, Levin L, Malat G, Doyle A, Ranganna K. 195 Outcomes of Kidney Transplantation in HIV Alone and HIV-HCV Coinfected Recipients. Am J Kidney Dis 2011. [DOI: 10.1053/j.ajkd.2011.02.198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
10
|
Ahmed I, Matthew D, Arora S, Xiao G, Malat G, Doyle A, Ranganna K. 9 Incidence of BK Virus Nephropathy in HIV Positive Renal Transplant Patients. Am J Kidney Dis 2011. [DOI: 10.1053/j.ajkd.2011.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
11
|
Lee DSC, Ohlsson A, Walker R, Matthew D, Lee SK. The Evidence-Based Practice for Improving Quality (Epiq) Trial: Impact on Early Neonatal Mortality. Paediatr Child Health 2010. [DOI: 10.1093/pch/15.suppl_a.39a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
12
|
Cronin CMG, Singhal N, Lee SK, Seshia MMK, Chan CK, Walker R, Sankaran K, Ohlsson A, Matthew D, Petranick W, Minski J. 115 Clinical Decision Making in the Care of Preterm Infants at Risk of BPD Varies Significantly between Canadian Neonatologists. Paediatr Child Health 2004. [DOI: 10.1093/pch/9.suppl_a.54ab] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
13
|
Abstract
OBJECTIVE Previous studies that compared outcomes of infants born outside tertiary care centers (outborn) with those born in tertiary care centers (inborn) did not account for admission illness severity and perinatal risks. The objective of this study was to examine whether outborn status is associated with higher mortality and morbidity, after adjustment for perinatal risks and admission illness severity (using the Score for Neonatal Acute Physiology, Version II [SNAP-II]) among preterm infants who were admitted to Neonatal Intensive Care Units (NICUs). METHODS Logistic regression analysis was used to compare the risk-adjusted outcomes of 3769 singleton infants born at or before 32 weeks' gestation, who were admitted to 17 Canadian NICUs during 1996-1997. RESULTS Outborn and inborn infants had significantly different gestational ages, perinatal risk factors (maternal hypertension, prenatal care, antenatal corticosteroid therapy, 5-minute Apgar score, delivery type, small for gestational age) and admission SNAP-II. Outborn infants were at higher risk of death (adjusted odds ratio [OR] 1.7, 95% confidence interval [CI] 1.2, 2.5), grade III or IV intraventricular hemorrhage (adjusted OR 2.2, 95% CI 1.5, 3.2), patent ductus arteriosus (adjusted OR 1.6, 95% CI 1.2, 2.1), respiratory distress syndrome (adjusted OR 4.8, 95% CI 3.6, 6.3), and nosocomial infection (adjusted OR 2.5, 95% CI 1.9, 3.3), even after adjusting for perinatal risks and admission illness severity. CONCLUSIONS Outborn infants were less mature and more ill than inborn infants at NICU admission. However, even after adjustment for perinatal risks and admission illness severity, inborn infants had better outcomes than outborn infants. Our results support in-utero transfer of high-risk pregnancies to a tertiary level facility.
Collapse
Affiliation(s)
- L Y Chien
- Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | | | | | | | | | | |
Collapse
|
14
|
Matthew D. Can every nurse give spiritual care? Kans Nurse 2000; 75:4-5. [PMID: 11998667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
15
|
Richardson RJ, Goldberg MA, Sharif HS, Matthew D. Implementing global telemedicine: experience with 1097 cases from the Middle East to the USA. J Telemed Telecare 1998; 2 Suppl 1:79-82. [PMID: 9375101 DOI: 10.1258/1357633961929376] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
16
|
Stick RV, Matthew D, Tilbrook G, Williams SJ. 1,6-epithio- and 1,6-episeleno-β-d-glucopyranose: Useful adjuncts in the synthesis of 6-deoxy-β-d-glucopyranosides. Tetrahedron Lett 1997. [DOI: 10.1016/s0040-4039(97)00458-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
17
|
Matthew D. Intensive care facilities for children. Pediatr Nephrol 1994; 8:126. [PMID: 8142212 DOI: 10.1007/bf00868291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
18
|
Abstract
Omeprazole is an antagonist to the H+K+ ATPase of the gastric parietal cell. We report a case of severe electrolyte disturbance in a 5-year-old child treated with omeprazole associated with excessive urinary sodium loss, that responded completely to omeprazole withdrawal.
Collapse
Affiliation(s)
- C Melville
- Department of Paediatric Gastroenterology, Hospital for Sick Children, London, UK
| | | | | | | |
Collapse
|
19
|
Matthew D, Brennan B, Zomorodi K, Houston JB. Disposition of azole antifungal agents. I. Nonlinearities in ketoconazole clearance and binding in rat liver. Pharm Res 1993; 10:418-22. [PMID: 8464816 DOI: 10.1023/a:1018996524141] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The disposition of ketoconazole was characterized in the rat over a wide dose/concentration range. Bolus dose (0.03-10 mg/kg) studies indicate that plasma concentration-time profiles for ketoconazole are not superimposable when dose normalized because of nonlinearities occurring in both volume of distribution and clearance. The volume of distribution decreases from 3 to less than 1 L/kg, while the plasma clearance decreases 10-fold from 25 mL/min/kg as the dose is escalated. From these results, infusion rates were calculated to maintain the plasma concentrations achieved with particular bolus doses. The curvilinear relationship between steady-state plasma concentration (0.015-8.3 mg/L) and ketoconazole infusion rate (0.021-2.45 mg/hr/kg) was analyzed in terms of Michaelis-Menten kinetics. A Vmax of 3.2 mg/hr/kg and Km of 2.1 mg/L were obtained by nonlinear regression analysis. At the end of the ketoconazole infusion, liver, adrenals and kidneys were removed and assayed for ketoconazole. Tissue-to-plasma partition coefficients for the liver and adrenals showed a marked dependence upon steady-state plasma concentration. Both parameters (liver, 22; and adrenals, 53) showed a decrease of approximately 10-fold as the plasma concentrations were increased. In contrast, the kidney:plasma partition coefficient (1.8), blood:plasma concentration ratio (0.6), and plasma binding (96%) of ketoconazole did not show a concentration dependence over the range studied. It is concluded that the liver is an important determinant of ketoconazole's volume of distribution and that saturation of this process accounts largely for the reduction in volume of distribution with increasing dose.(ABSTRACT TRUNCATED AT 250 WORDS)
Collapse
Affiliation(s)
- D Matthew
- Department of Pharmacy, University of Manchester, UK
| | | | | | | |
Collapse
|
20
|
Matthew D, Long D, Andrews W, Friel J. Comparison of two kits for measuring ferritin in blood. Clin Pediatr (Phila) 1993; 32:190-1. [PMID: 8453843 DOI: 10.1177/000992289303200317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Ferritin concentrations in blood are a good indicator of iron stores and can be measured in plasma or serum with commercial kits. We have measured plasma ferritin content in infants ranging from 3 to 15 months of age. During the first three years of a four-year study, plasma samples drawn from these infants were shipped to Abbott Laboratories in Chicago and assayed using the Ferrizyme immunoassay technique (Abbott Laboratories, Chicago, Illinois). For the last year of the study, we analyzed the remaining samples in St. John's using the radioimmunoassay GammaDab125 I Kit (Baxter Travenol Diagnostics, Inc., Cambridge, Massachusetts). Both kit manufacturers report inter- and intra-assay variability of < or = 5%. Results for samples analyzed by the second method were higher than earlier results from infants of the same age with the same intakes of iron; thus, we decided to analyze subsequent samples with both kits.
Collapse
|
21
|
Affiliation(s)
- A Shah
- Endocrine Unit, Hospital for Sick Children, London
| | | | | |
Collapse
|
22
|
Abstract
We report 3 cases of severe tracheobronchomalacia associated with laryngeal cleft. Each of these children had a major cleft, type 3 in Evans' classification. Separately each of these conditions are difficult to treat, in combination these major airway anomalies caused management problems of great complexity. We describe the presentation of these cases, the diagnosis of the lesions and the management paths we followed. We discuss the pathology of the conditions and the diagnostic options which are available for defining the extent of responsibility of each component to the overall clinical picture. We discuss the therapeutic options available and describe our own management regime.
Collapse
Affiliation(s)
- D B Mitchell
- Department of Otolaryngology, Hospital for Sick Children, London, U.K
| | | | | | | | | |
Collapse
|
23
|
Matthew D. Clinical evaluation of continuing education effectiveness. Kans Nurse 1987; 62:5-6. [PMID: 3648292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
24
|
|
25
|
|
26
|
Matthew D, Groutas WC. In vitro study of the effect of selected drugs used in carrier intravenous lines on sodium nitroprusside delivery. Heart Lung 1984; 13:645-9. [PMID: 6567635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
|
27
|
Abstract
In an attempt to evaluate the effectiveness of family psychotherapy as an adjunct conventional treatment in childhood asthma, children with moderate to severe asthma were randomly allocated to a control group or to an experimental group; the latter group received 6 hours of family treatment during a 4-month period, and both groups had standard medical treatment. While there was no significant difference between the two groups on three parameters, the experimental group were significantly better in day-wheeze score and thoracic gas volume. These results suggest that family treatment in selected cases may have a place in the overall management of childhood asthma, and that more research with larger numbers of children is necessary.
Collapse
|
28
|
|
29
|
Matthew D. HOSPITAL TREATMENT OF EARLY MENTAL DISEASE. West J Med 1924. [DOI: 10.1136/bmj.2.3328.689-a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
30
|
Rixon CHL, Matthew D. FORGETTING: PSYCHOLOGICAL REPRESSION. West J Med 1920. [DOI: 10.1136/bmj.1.3084.201-c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|