Laser speckle contrast imaging for quantitative assessment of facial flushing during mesenteric traction syndrome in upper gastrointestinal surgery

Ring, Linea Landgrebe; Strandby, Rune Broni; Henriksen, A.; Ambrus, Rikard; Sørensen, Henrik; Gøtze, Jens Peter; Svendsen, Lars Bo; Achiam, Michael Patrick

doi:10.1007/s10877-018-0226-0

Cited by 9 publications

(3 citation statements)

References 25 publications

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“…This prospective cohort study was conducted at a single tertiary referral center (2015–2016) as approved by the Scientific‐Ethical Committees, Kongens Vænge 2, 3400 Hillerød, Capital Region, Copenhagen (ID: H‐3‐2014‐021, approved August 26, 2015), The Danish Data Protection Agency (ID: RH‐2015‐232) and registered at http://clinicaltrials.gov (ID: NCT02507414). The study was conducted with patients who were simultaneously enrolled in another prospective, observational trial which was registered under the same clinical trial ID 18 . Predefined outcomes were: deviations in plasma MR‐proANP and the SV response to HDT (primary) and the applied crystalloid/colloid ratio, fluid balance, as postoperative complications (secondary outcomes).…”

Section: Methodsmentioning

confidence: 99%

“…The study was conducted with patients who were simultaneously enrolled in another prospective, observational trial which was registered under the same clinical trial ID. 18 Predefined outcomes were: deviations in plasma MR-proANP and the SV response to HDT (primary) and the applied crystalloid/ colloid ratio, fluid balance, as postoperative complications (secondary outcomes). Also, a post hoc variable was defined to allow for a comparison of fluid balance, crystalloid/colloid ratio, and postoperative complications among groups by allocating patients into three percentiles according to their perioperative change in plasma MR-proANP.…”

Section: Introductionmentioning

confidence: 99%

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Mid‐regional plasma pro‐atrial natriuretic peptide and stroke volume responsiveness for detecting deviations in central blood volume following major abdominal surgery

Strandby

Secher

Ambrus

et al. 2022

Acta Anaesthesiol Scand

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Background: A reduced central blood volume is reflected by a decrease in midregional plasma pro-atrial natriuretic peptide (MR-proANP), a stable precursor of ANP, and a volume deficit may also be assessed by the stroke volume (SV) response to head-down tilt (HDT). We determined plasma MR-proANP during major abdominal procedures and evaluated whether the patients were volume responsive by the end of the surgery, taking the fluid balance and the crystalloid/colloid ratio into account.Methods: Patients undergoing pancreatic (n = 25), liver (n = 25), or gastroesophageal (n = 38) surgery were included prospectively. Plasma MR-proANP was determined before and after surgery, and the fluid response was assessed by the SV response to 10HDT after the procedure. The fluid strategy was based mainly on lactated Ringer's solution for gastroesophageal procedures, while for pancreas and liver surgery, more human albumin 5% was administered.Results: Plasma MR-proANP decreased for patients undergoing gastroesophageal surgery (À9% [95% CI À3.2 to À15.3], p = .004) and 10 patients were fluid responsive by the end of surgery (ΔSV > 10% during HDT) with an administered crystalloid/ colloid ratio of 3.3 (fluid balance +1389 ± 452 ml). Furthermore, plasma MR-proANP and fluid balance were correlated (r = .352 [95% CI 0.031-0.674], p < .001). In contrast, plasma MR-proANP did not change significantly during pancreatic and liver surgery during which the crystalloid/colloid ratio was 1.0 (fluid balance +385 ± 478 ml) and 1.9 (fluid balance +513 ± 381 ml), respectively. For these patients, there was no correlation between plasma MR-proANP and fluid balance, and no patient was fluid responsive. Conclusion:Plasma MR-proANP was reduced in fluid responsive patients by the end of surgery for the patients for whom the fluid strategy was based on more lactated Ringer's solution than human albumin 5%.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mid‐regional plasma pro‐atrial natriuretic peptide and stroke volume responsiveness for detecting deviations in central blood volume following major abdominal surgery

Strandby

Secher

Ambrus

et al. 2022

Acta Anaesthesiol Scand

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“…Most of the optical modalities require a coherent light source and follow the working principle of dynamic light scattering [8]. Laser speckle contrast imaging (LSCI) is a powerful tool for wide-field blood flow imaging of superficial tissue [9][10][11]. But the penetration depth limits its applications in deep tissue blood flow and PWV measurement.…”

Section: Introductionmentioning

confidence: 99%

In Vivo Pulse Wave Measurement Through a Multimode Fiber Diffuse Speckle Analysis System

et al. 2021

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Continuous monitoring of in vivo pulsatile blood flow and pulse wave velocity (PWV) is important for clinical applications. These parameters are correlated with physiological parameters, such as blood pressure and elasticity of blood vessels. A multimode fiber diffuse speckle contrast analysis (MMF-DSCA) system was developed for fast measurement of in vivo pulsatile blood flow and pulse wave velocity. With MMF and CCD sensor, the diffuse speckle could be captured and processed with higher temporal resolution of 3 ms. We also induced for the first time an MMF-DSCA for evaluation of PWV, which allows estimation of the blood pressure continuously. To validate its performance, both phantom and in vivo experiments were conducted. The results demonstrate that MMF-DSCA could achieve fast pulsatile blood flow measurement with detailed information of the pulse wave profile and velocity. Taking the advantages of being simple and cost-effective, the flexible system can be easily adapted for continuous monitoring of vital biosigns, such as heart rate, pulse wave, and blood pressure.

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Development of a severe mesenteric traction syndrome during major abdominal surgery is associated with increased postoperative morbidity: Secondary data analysis on prospective cohorts

Olsen

Strandby

Nerup

et al. 2019

Langenbecks Arch Surg

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Laser speckle contrast imaging for quantitative assessment of facial flushing during mesenteric traction syndrome in upper gastrointestinal surgery

Cited by 9 publications

References 25 publications

Mid‐regional plasma pro‐atrial natriuretic peptide and stroke volume responsiveness for detecting deviations in central blood volume following major abdominal surgery

Mid‐regional plasma pro‐atrial natriuretic peptide and stroke volume responsiveness for detecting deviations in central blood volume following major abdominal surgery

In Vivo Pulse Wave Measurement Through a Multimode Fiber Diffuse Speckle Analysis System

Development of a severe mesenteric traction syndrome during major abdominal surgery is associated with increased postoperative morbidity: Secondary data analysis on prospective cohorts

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