Reliability of the Lactate Scout point‐of‐care instrument for the determination of blood <scp>l</scp>‐lactate concentration in sheep

Kaynar, Özgür; Karapinar, Tolga; Hayırlı, A.; Baydar, Ersoy

doi:10.1111/vcp.12288

Cited by 6 publications

(4 citation statements)

References 24 publications

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“…Results of the present study did not confirm findings from previous studies validating the Lactate Scout (previous model to the Lactate Scout+). The device used in the earlier validation studies was an older model (Lactate Scout, SensLab GmbH, Leipzig, Germany) that was validated in pigs [17], horses [14], dogs [25], sheep [16], and cattle [18,20]. The Lactate Scout+ is a newer model than the Lactate Scout, and its novel features include a compensatory mechanism for differences in hematocrit and integrated Bluetooth technology.…”

Section: Discussionmentioning

confidence: 99%

“…L-lactate can be measured using methodologies, such as commercially available enzymatic analytical assays, blood gas analyzers, or hand-held devices, with the latter ones being developed to be more time and cost effective than traditional analytical methods. Lactate Scout hand-held monitors have been validated for use in horses [14], dogs [15], sheep [16], pigs [17], cows, and calves [18]. Hand-held analyzers, such as the Accusport (Boheringer, Mannheim, Germany), Accutrend Plus (Roche Diagnostics, Mannheim, Germany), i-STAT (Abbott Point of Care, Abbott Laboratories, Chicago, IL), Lactate Scout (SensLab GmbH, Leipzig, Germany), and Lactate Pro (Arkay Inc, Kyoto, Japan) were shown to correlate (r > 0.94) with the laboratory based measures in cattle with different diseases [19,20].…”

Section: Introductionmentioning

confidence: 99%

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Correlation between L-Lactate Concentrations in Beef Cattle, Obtained Using a Hand-Held Lactate Analyzer and a Lactate Assay Colorimetric Kit

Meléndez

Marti

Faucitano

et al. 2021

Animals

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Lactate is a product of anaerobic glycolysis, used in animal research as an indicator of muscle fatigue. Therefore, it has been used as an indicator of cattle response to long distance transportation. The aim of this study was to assess the relationship of L-lactate concentrations measured using a Lactate Scout+ analyzer and a traditional lactate assay colorimetric kit. Blood samples were collected by venipuncture from 96 steers (Black or Red Angus × Hereford/Simmental and Black or Red Angus × Charolais; 247 ± 38.2 kg BW) prior to loading (LO1) and after 36 h of transport, and prior to reloading and after an additional 4 h of road transportation, and on d 1, 2, 3, 5, 14, and 28 after transport. The Lactate Scout+ analyzer strip was dipped in blood at the time of sampling, while blood samples were collected into sodium fluoride tubes for use in the colorimetric analysis. Pearson correlations were calculated to assess the strength of the relationship between the experimental methods for the quantification of L-lactate concentrations. The magnitude and direction of the correlation, and the level of statistical significance varied over the observed time points, ranging from r = −0.03 (p = 0.75; LO1) to r = 0.75 (p < 0.0001; d 3). The correlation for the pooled data was weak but statistically significant (r = 0.33, p < 0.0001). Based on the low magnitude of the correlation due to variability across sampling time points in this study, the Lactate Scout+ analyzer is not a suitable alternative to a lab-based assay (considered the gold standard) for measuring L-lactate in transported cattle.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Correlation between L-Lactate Concentrations in Beef Cattle, Obtained Using a Hand-Held Lactate Analyzer and a Lactate Assay Colorimetric Kit

Meléndez

Marti

Faucitano

et al. 2021

Animals

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“…The unit proves to be a reliable lactate measurement system with an inter-rater reliability with a correlation coefficient of r = 0.95 for inter-rater reliability and r = 0.91 for intra-rater reliability (Tanner et al 2010 ). The Lactate Scout is reported to have 99% accuracy and 98% precision (Kaynar et al 2015 ).…”

Section: Methodsmentioning

confidence: 99%

Changes in miRNA expression in patients with peripheral arterial vascular disease during moderate- and vigorous-intensity physical activity

et al. 2022

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Background Walking is the preferred therapy for peripheral arterial disease in early stage. An effect of walking exercise is the increase of blood flow and fluid shear stress, leading, triggered by arteriogenesis, to the formation of collateral blood vessels. Circulating micro-RNA may act as an important information transmitter in this process. We investigated the acute effects of a single bout of 1) aerobic walking with moderate intensity; and 2) anaerobic walking with vigorous intensity on miRNA parameters related to vascular collateral formation. Methods Ten (10) patients with peripheral arterial disease with claudication (age 72 ± 7 years) participated in this two-armed, randomized-balanced cross-over study. The intervention arms were single bouts of supervised walking training at (1) vigorous intensity on a treadmill up to volitional exhaustion and (2) moderate intensity with individual selected speed for a duration of 20 min. One week of washout was maintained between the arms. During each intervention, heart rate was continuously monitored. Acute effects on circulating miRNAs and lactate concentration were determined using pre- and post-intervention measurement comparisons. Results Vigorous-intensity walking resulted in a higher heart rate (125 ± 21 bpm) than the moderate-intensity intervention (88 ± 9 bpm) (p < 0.05). Lactate concentration was increased after vigorous-intensity walking (p = 0.005; 3.3 ± 1.2 mmol/l), but not after moderate exercising (p > 0.05; 1.7 ± 0.6 mmol/l). The circulating levels of miR-142-5p and miR-424-5p were up-regulated after moderate-intensity (p < 0.05), but not after vigorous-intensity training (p > 0.05). Conclusion Moderate-intensity walking seems to be more feasible than vigorous exercises to induce changes of blood flow and endurance training-related miRNAs in patients with peripheral arterial disease. Our data thus indicates that effect mechanisms might follow an optimal rather than a maximal dose response relation. Steady state walking without the necessity to reach exhaustion seems to be better suited as stimulus.

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“…Moreover the portable analyzers could be more practical to use during some critical interventions [11,12]. The latest studies showed the introduction of the lactate pocket analyzer in ovine medicine [13].…”

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confidence: 99%

Reliability of Lactate Scout Portable Analyzer in Agility Dogs During Multiple Measurements

et al. 2016

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The aim of this study was to evaluate the reliability of multiple measurements with Lactate Scout portable analyzer in dogs during treadmill exercise. Ten Border collies were involved in the study and blood samples were taken before, three times during and twice after the treadmill exercise. Lactate concentration was measured in duplicate, by Scout portable analyzer and the reference biochemical analyzer in the laboratory, and the obtained values were compared. There was a high and positive correlation between these two methods (r=0.96, p=0.003). The Lactate Scout analyzer reveals a high degree of agreement with the laboratory method and therefore can be valid for use in research of veterinary sports medicine and emergency veterinary medicine where multiple measurements of lactate concentrations are often needed.

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Reliability of the Lactate Scout point‐of‐care instrument for the determination of blood l‐lactate concentration in sheep

Abstract: The Lactate Scout has high accuracy and precision, with a negligible bias. It is a reliable POC analyzer to assess L-lactate concentration in ovine medicine.

Cited by 6 publications

References 24 publications

Correlation between L-Lactate Concentrations in Beef Cattle, Obtained Using a Hand-Held Lactate Analyzer and a Lactate Assay Colorimetric Kit

Correlation between L-Lactate Concentrations in Beef Cattle, Obtained Using a Hand-Held Lactate Analyzer and a Lactate Assay Colorimetric Kit

Changes in miRNA expression in patients with peripheral arterial vascular disease during moderate- and vigorous-intensity physical activity

Reliability of Lactate Scout Portable Analyzer in Agility Dogs During Multiple Measurements

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