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Prospective evaluation and long-term follow-up of patients referred to secondary care based upon natriuretic peptide levels in primary care.

Gierula J, Cubbon RM, Paton MF, Byrom R, Lowry JE, Winsor SF, McGinlay M, Sunley E, Pickles E, Kearney LC, Koshy A, Slater TA, Chumun HK, Jamil HA, Bailey KM, Barth JH, Kearney MT, Witte KK.

Eur Heart J Qual Care Clin Outcomes. 2019 Jul 1;5(3):218-224. doi: 10.1093/ehjqcco/qcy053.


Big data in clinical biochemistry.

Shine B, Barth JH.

Ann Clin Biochem. 2019 May;56(3):308-309. doi: 10.1177/0004563218800735. Epub 2018 Sep 12. No abstract available.


Vitamin D deficiency is an independent predictor of mortality in patients with chronic heart failure.

Cubbon RM, Lowry JE, Drozd M, Hall M, Gierula J, Paton MF, Byrom R, Kearney LC, Barth JH, Kearney MT, Witte KK.

Eur J Nutr. 2019 Sep;58(6):2535-2543. doi: 10.1007/s00394-018-1806-y. Epub 2018 Aug 18.


Indirect methods for reference interval determination - review and recommendations.

Jones GRD, Haeckel R, Loh TP, Sikaris K, Streichert T, Katayev A, Barth JH, Ozarda Y; IFCC Committee on Reference Intervals and Decision Limits.

Clin Chem Lab Med. 2018 Dec 19;57(1):20-29. doi: 10.1515/cclm-2018-0073.


Observational studies on macroprolactin in a routine clinical laboratory.

Barth JH, Lippiatt CM, Gibbons SG, Desborough RA.

Clin Chem Lab Med. 2018 Jul 26;56(8):1259-1262. doi: 10.1515/cclm-2018-0074.


Cardiovascular magnetic resonance measures of aortic stiffness in asymptomatic patients with type 2 diabetes: association with glycaemic control and clinical outcomes.

Swoboda PP, Erhayiem B, Kan R, McDiarmid AK, Garg P, Musa TA, Dobson LE, Witte KK, Kearney MT, Barth JH, Ajjan R, Greenwood JP, Plein S.

Cardiovasc Diabetol. 2018 Mar 5;17(1):35. doi: 10.1186/s12933-018-0681-4.


An analysis of the relationship between serum cortisol and serum sodium in routine clinical patients.

McLaughlan E, Barth JH.

Pract Lab Med. 2017 Apr 13;8:30-33. doi: 10.1016/j.plabm.2017.04.003. eCollection 2017 Aug.


Mechanical ventilation weaning protocol improves medical adherence and results.

Borges LGA, Savi A, Teixeira C, de Oliveira RP, De Camillis MLF, Wickert R, Brodt SFM, Tonietto TF, Cremonese R, da Silva LS, Gehm F, Oliveira ES, Barth JHD, Macari JG, de Barros CD, Vieira SRR.

J Crit Care. 2017 Oct;41:296-302. doi: 10.1016/j.jcrc.2017.07.014. Epub 2017 Jul 12.


Diabetes Mellitus, Microalbuminuria, and Subclinical Cardiac Disease: Identification and Monitoring of Individuals at Risk of Heart Failure.

Swoboda PP, McDiarmid AK, Erhayiem B, Ripley DP, Dobson LE, Garg P, Musa TA, Witte KK, Kearney MT, Barth JH, Ajjan R, Greenwood JP, Plein S.

J Am Heart Assoc. 2017 Jul 17;6(7). pii: e005539. doi: 10.1161/JAHA.117.005539.


Mortality of Adult Critically Ill Subjects With Cancer.

Rosa RG, Tonietto TF, Duso BA, Maccari JG, de Oliveira RP, Rutzen W, Madeira L, Ascoli A, Hessler R, Morandi P, Cremonese RV, Neto FLD, Tagliari L, de Campos Balzano P, Barth JHD, Teixeira C.

Respir Care. 2017 May;62(5):615-622. doi: 10.4187/respcare.05210. Epub 2017 Feb 14.


High-dose oral colecalciferol loading in obesity: impact of body mass index and its utility prior to bariatric surgery to treat vitamin D deficiency.

King RJ, Chandrajay D, Abbas A, Orme SM, Barth JH.

Clin Obes. 2017 Apr;7(2):92-97. doi: 10.1111/cob.12176. Epub 2017 Feb 1.


Comparison of method-related reference intervals for thyroid hormones: studies from a prospective reference population and a literature review.

Barth JH, Luvai A, Jassam N, Mbagaya W, Kilpatrick ES, Narayanan D, Spoors S.

Ann Clin Biochem. 2018 Jan;55(1):107-112. doi: 10.1177/0004563217691549. Epub 2017 May 8. Review.


Could accreditation bodies facilitate the implementation of medical guidelines in laboratories?

Aakre KM, Oosterhuis WP, Misra S, Langlois MR, Joseph W, Twomey PJ, Barth JH.

Clin Chem Lab Med. 2017 May 1;55(6):806-808. doi: 10.1515/cclm-2016-0577.


A short course of metformin does not reduce OHSS in a GnRH antagonist cycle for women with PCOS undergoing IVF: a randomised placebo-controlled trial.

Jacob SL, Brewer C, Tang T, Picton HM, Barth JH, Balen AH.

Hum Reprod. 2016 Dec;31(12):2756-2764. Epub 2016 Nov 5.


Anti-Müllerian hormone reflects the severity of polycystic ovary syndrome.

Jacob SL, Field HP, Calder N, Picton HM, Balen AH, Barth JH.

Clin Endocrinol (Oxf). 2017 Mar;86(3):395-400. doi: 10.1111/cen.13269. Epub 2016 Dec 1.


How Useful are Laboratory Practice Guidelines?

Misra S, Moberg-Aakre K, Langlois M, Watine J, Twomey PJ, Oosterhuis WP, Barth JH.

EJIFCC. 2015 Aug 24;26(3):190-6. eCollection 2015 Aug.


A global multicenter study on reference values: 2. Exploration of sources of variation across the countries.

Ichihara K, Ozarda Y, Barth JH, Klee G, Shimizu Y, Xia L, Hoffmann M, Shah S, Matsha T, Wassung J, Smit F, Ruzhanskaya A, Straseski J, Bustos DN, Kimura S, Takahashi A; Committee on Reference Intervals and Decision Limits, International Federation of Clinical Chemistry and Laboratory Medicine and Science Committee, Asia-Pacific Federation for Clinical Biochemistry.

Clin Chim Acta. 2017 Apr;467:83-97. doi: 10.1016/j.cca.2016.09.015. Epub 2016 Sep 22.


A global multicenter study on reference values: 1. Assessment of methods for derivation and comparison of reference intervals.

Ichihara K, Ozarda Y, Barth JH, Klee G, Qiu L, Erasmus R, Borai A, Evgina S, Ashavaid T, Khan D, Schreier L, Rolle R, Shimizu Y, Kimura S, Kawano R, Armbruster D, Mori K, Yadav BK; Committee on Reference Intervals and Decision Limits, International Federation of Clinical Chemistry and Laboratory Medicine.

Clin Chim Acta. 2017 Apr;467:70-82. doi: 10.1016/j.cca.2016.09.016. Epub 2016 Sep 22.


Post-standardization of routine creatinine assays: are they suitable for clinical applications.

Jassam N, Weykamp C, Thomas A, Secchiero S, Sciacovelli L, Plebani M, Thelen M, Cobbaert C, Perich C, Ricós C, Paula FA, Barth JH.

Ann Clin Biochem. 2017 May;54(3):386-394. doi: 10.1177/0004563216664541. Epub 2016 Aug 5.


Analytical performance of 17 general chemistry analytes across countries and across manufacturers in the INPUtS project of EQA organizers in Italy, the Netherlands, Portugal, United Kingdom and Spain.

Weykamp C, Secchiero S, Plebani M, Thelen M, Cobbaert C, Thomas A, Jassam N, Barth JH, Perich C, Ricós C, Faria AP.

Clin Chem Lab Med. 2017 Feb 1;55(2):203-211. doi: 10.1515/cclm-2016-0220.


A Novel and Practical Screening Tool for the Detection of Silent Myocardial Infarction in Patients With Type 2 Diabetes.

Swoboda PP, McDiarmid AK, Erhayiem B, Haaf P, Kidambi A, Fent GJ, Dobson LE, Musa TA, Garg P, Law GR, Kearney MT, Barth JH, Ajjan R, Greenwood JP, Plein S.

J Clin Endocrinol Metab. 2016 Sep;101(9):3316-23. doi: 10.1210/jc.2016-1318. Epub 2016 Jun 14.


Factors associated with mortality and functional status among neurocritical care adult patients: a prospective cohort study.

Madeira L, Rutzen W, Tagliari L, Rosa R, Ascoli A, Barth JH, Oliveira E, Cremonese R, Tonietto T, Maccari J, Balzano P, de Leon P, Morandi P, Oliveira R, Teixeira C.

Intensive Care Med Exp. 2015 Dec;3(Suppl 1):A985. doi: 10.1186/2197-425X-3-S1-A985. No abstract available.


Guidelines for the follow-up of patients undergoing bariatric surgery.

O'Kane M, Parretti HM, Hughes CA, Sharma M, Woodcock S, Puplampu T, Blakemore AI, Clare K, MacMillan I, Joyce J, Sethi S, Barth JH.

Clin Obes. 2016 Jun;6(3):210-24. doi: 10.1111/cob.12145.


Effects of Vitamin D on Cardiac Function in Patients With Chronic HF: The VINDICATE Study.

Witte KK, Byrom R, Gierula J, Paton MF, Jamil HA, Lowry JE, Gillott RG, Barnes SA, Chumun H, Kearney LC, Greenwood JP, Plein S, Law GR, Pavitt S, Barth JH, Cubbon RM, Kearney MT.

J Am Coll Cardiol. 2016 Jun 7;67(22):2593-603. doi: 10.1016/j.jacc.2016.03.508. Epub 2016 Apr 4.


Reference intervals for thyroid hormones on Advia Centaur derived from three reference populations and a review of the literature.

Barth JH, Spencer JD, Goodall SR, Luvai A.

Ann Clin Biochem. 2016 May;53(Pt 3):385-9. doi: 10.1177/0004563216636897. Review.


Nutritional follow-up of patients after obesity surgery: best practice.

O'Kane M, Barth JH.

Clin Endocrinol (Oxf). 2016 May;84(5):658-61. doi: 10.1111/cen.13041. Epub 2016 Mar 11.


NICE-Accredited Commissioning Guidance for Weight Assessment and Management Clinics: a Model for a Specialist Multidisciplinary Team Approach for People with Severe Obesity.

Welbourn R, Dixon J, Barth JH, Finer N, Hughes CA, le Roux CW, Wass J; Guidance Development Group.

Obes Surg. 2016 Mar;26(3):649-59. doi: 10.1007/s11695-015-2041-8. Review.


Obesity services: how best to develop a coherent way forward.

Barth JH, O'Kane M.

Clin Endocrinol (Oxf). 2016 Mar;84(3):321-4. doi: 10.1111/cen.12992. Epub 2016 Jan 27.


Why are clinical practice guidelines not followed?

Barth JH, Misra S, Aakre KM, Langlois MR, Watine J, Twomey PJ, Oosterhuis WP.

Clin Chem Lab Med. 2016 Jul 1;54(7):1133-9. doi: 10.1515/cclm-2015-0871. Review.


Cardiogenic shock due to Gemella morbillorum native mitral valve endocarditis.

Rosa RG, Rosa MD, Ascoli AM, Mattioni M, Barth JH, Teixeira C.

Clin Case Rep. 2015 Jun;3(6):342-4. doi: 10.1002/ccr3.226. Epub 2015 Mar 10.


Evaluation of the effect of clinical validation of out of hours critical laboratory results.

Chandrajay D, Narayanan D, Barth JH.

Ann Clin Biochem. 2016 Mar;53(Pt 2):274-8. doi: 10.1177/0004563215595251. Epub 2015 Jun 19.


Evaluation of standardization capability of current cardiac troponin I assays by a correlation study: results of an IFCC pilot project.

Tate JR, Bunk DM, Christenson RH, Barth JH, Katrukha A, Noble JE, Schimmel H, Wang L, Panteghini M; IFCC Working Group on Standardization of Cardiac Troponin I.

Clin Chem Lab Med. 2015 Apr;53(5):677-90. doi: 10.1515/cclm-2014-1197.


Expedited discharge with high-sensitivity (hs) troponin.

Hall AS, Abdel-Rahman SE, Barth JH.

Heart. 2015 Jul;101(13):1000-1. doi: 10.1136/heartjnl-2015-307555. Epub 2015 May 6. No abstract available.


The effect of storage conditions on sample stability in the routine clinical laboratory.

Kift RL, Byrne C, Liversidge R, Babbington F, Knox C, Binns J, Barth JH.

Ann Clin Biochem. 2015 Nov;52(Pt 6):675-9. doi: 10.1177/0004563215580000. Epub 2015 Mar 16.


Audit of the Use of Regular Haem Arginate Infusions in Patients with Acute Porphyria to Prevent Recurrent Symptoms.

Marsden JT, Guppy S, Stein P, Cox TM, Badminton M, Gardiner T, Barth JH, Stewart MF, Rees DC.

JIMD Rep. 2015;22:57-65. doi: 10.1007/8904_2015_411. Epub 2015 Mar 12.


Systematic review of definitions of failure in revisional bariatric surgery.

Mann JP, Jakes AD, Hayden JD, Barth JH.

Obes Surg. 2015 Mar;25(3):571-4. doi: 10.1007/s11695-014-1541-2. Review.


Management of severe in-patient hyponatraemia: an audit in two teaching hospitals in Yorkshire, UK.

Narayanan D, Mbagaya W, Aye M, Kilpatrick ES, Barth JH.

Scand J Clin Lab Invest. 2015 Jan;75(1):1-6. doi: 10.3109/00365513.2014.926563. Epub 2014 Oct 24.


Hepatocellular carcinoma in variegate porphyria: a case report and literature review.

Luvai A, Mbagaya W, Narayanan D, Degg T, Toogood G, Wyatt JI, Swinson D, Hall CJ, Barth JH.

Ann Clin Biochem. 2015 May;52(Pt 3):407-12. doi: 10.1177/0004563214557568. Epub 2014 Oct 9. Review.


Does creatinine analytical performance support robust identification of acute kidney injury within individual laboratories in a region.

Jassam N, Mbagaya W, Kallner A, Hill R, Carless D, Barth JH, Delaney H, Lippiatt C, Shepherd J, Glover S, Slack S, Mitchell K, Strafen A, Bosomworth MP.

Clin Chem Lab Med. 2015 Feb;53(3):e63-5. doi: 10.1515/cclm-2014-0785. No abstract available.


The effect of metformin treatment in vivo on acute and long-term energy metabolism and progesterone production in vitro by granulosa cells from women with polycystic ovary syndrome.

Maruthini D, Harris SE, Barth JH, Balen AH, Campbell BK, Picton HM.

Hum Reprod. 2014 Oct 10;29(10):2302-16. doi: 10.1093/humrep/deu187. Epub 2014 Aug 19.


The quality of laboratory aspects of troponin testing in clinical practice guidelines and consensus documents needs to be improved.

Aakre KM, Langlois MR, Barth JH, Misra S, Watine J, Oosterhuis WP.

Clin Chim Acta. 2014 Nov 1;437:58-61. doi: 10.1016/j.cca.2014.07.006. Epub 2014 Jul 15.


Cardiovascular risk in patients with small and medium abdominal aortic aneurysms, and no history of cardiovascular disease.

Sohrabi S, Wheatcroft S, Barth JH, Bailey MA, Johnson A, Bridge K, Griffin K, Baxter PD, Scott DJ.

Br J Surg. 2014 Sep;101(10):1238-43. doi: 10.1002/bjs.9567. Epub 2014 Jun 26.


Harmonization: the sample, the measurement, and the report.

Miller WG, Tate JR, Barth JH, Jones GR.

Ann Lab Med. 2014 May;34(3):187-97. doi: 10.3343/alm.2014.34.3.187. Epub 2014 Apr 8. Review.


Analytical and clinical challenges in a patient with concurrent type 1 diabetes, subcutaneous insulin resistance and insulin autoimmune syndrome.

Jassam N, Amin N, Holland P, Semple RK, Halsall DJ, Wark G, Barth JH.

Endocrinol Diabetes Metab Case Rep. 2014;2014:130086. doi: 10.1530/EDM-13-0086. Epub 2014 Apr 1.


Effects of angiotensin-converting enzyme inhibitors and beta blockers on clinical outcomes in patients with and without coronary artery obstructions at angiography (from a Register-Based Cohort Study on Acute Coronary Syndromes).

Manfrini O, Morrell C, Das R, Barth JH, Hall AS, Gale CP, Cenko E, Bugiardini R; Evaluation of Methods and Management of Acute Coronary Events Study Group.

Am J Cardiol. 2014 May 15;113(10):1628-33. doi: 10.1016/j.amjcard.2014.02.015. Epub 2014 Mar 3.


Harmonization of quality indicators in laboratory medicine. A preliminary consensus.

Plebani M, Astion ML, Barth JH, Chen W, de Oliveira Galoro CA, Escuer MI, Ivanov A, Miller WG, Petinos P, Sciacovelli L, Shcolnik W, Simundic AM, Sumarac Z.

Clin Chem Lab Med. 2014 Jul;52(7):951-8. doi: 10.1515/cclm-2014-0142.


Calcium, phosphate and calcium phosphate product are markers of outcome in patients with chronic heart failure.

Cubbon RM, Thomas CH, Drozd M, Gierula J, Jamil HA, Byrom R, Barth JH, Kearney MT, Witte KK.

J Nephrol. 2015 Apr;28(2):209-15. doi: 10.1007/s40620-014-0075-y. Epub 2014 Mar 11.


"Harmonization of laboratory testing - A global activity".

Tate JR, Johnson R, Barth JH, Panteghini M.

Clin Chim Acta. 2014 May 15;432:1-3. doi: 10.1016/j.cca.2014.02.006. Epub 2014 Feb 15. No abstract available.


How good is the evidence base for test selection in clinical guidelines?

Misra S, Barth JH.

Clin Chim Acta. 2014 May 15;432:27-32. doi: 10.1016/j.cca.2014.01.040. Epub 2014 Feb 7. Review.


The effect of serum matrix and gender on cortisol measurement by commonly used immunoassays.

Dodd AJ, Ducroq DH, Neale SM, Wise MP, Mitchem KL, Armston A, Barth JH, El-Farhan N, Rees DA, Evans C.

Ann Clin Biochem. 2014 May;51(Pt 3):379-85. doi: 10.1177/0004563213514567. Epub 2013 Dec 20.


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