Effect of temperature on fluidity of irrigation fluids

Fonseca, Márlon de Freitas; Andrade, C.M.; Mello, MG; Crispi, C.P.

doi:10.1093/bja/aeq303

Cited by 20 publications

(12 citation statements)

References 25 publications

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“…Neither the Royal College of Obstetricians and Gynecologists' 'Best Practice in Outpatient Hysteroscopy Green Top Guideline' 1 nor the European Society of Gynecological Endoscopy's 'Guideline on Management of Fluid Distension Media in Operative Hysteroscopy' 8 specify an optimal temperature for outpatient hysteroscopy, probably due to the paucity of objective data. There is also an interesting data from de Freitas Fonseca et al 9 suggesting that warming the distention medium to body temperature may increase fluid absorption by 50% due to intravasation, thus limiting operating time this was not supported by our findings as our mean procedural duration was similar in both groups (256 AE 154 vs 232.5 AE 142; P = 0.1).…”

Section: Discussioncontrasting

confidence: 70%

Does temperature of distending medium matter in outpatient hysteroscopy? A double‐blinded cohort control observational study of room temperature versus warmed saline

Kapur

Gruber

Sekar

et al. 2020

J of Obstet and Gynaecol

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Aim There is little data assessing outcomes of outpatient hysteroscopy using warmed versus room temperature saline. The aim of this study was to determine if the temperature of the distending medium during outpatient hysteroscopy affect ease of procedure, clarity of view, procedural discomfort/pain and patient satisfaction. Methods This was a double‐blinded cohort control quasi‐randomized prospective study involving 100 women undergoing outpatient diagnostic and operative hysteroscopy for abnormal uterine bleeding, intrauterine contraceptive devices retrieval and removal of endometrial polyps. Outpatient hysteroscopy was performed either with normal saline either at room temperature (control at 25°C) or warmed to body temperature (37°C). Results Confounding variables such as age, parity, previous cervical surgery, previous vaginal births, menopausal status and indications for hysteroscopy were similar in the room temperature (n = 48) and warmed saline (n = 52) groups. Mean procedure duration (256 vs 233 s), ease of entry (Visual Analogue Scale [VAS] 9.55 vs 9.4) and the clarity of view (VAS 9.02 vs 9.3) were statistically similar in both groups (all P > 0.05) as was discomfort experienced during hysteroscopy (VAS 6.6/10 vs 6.8/10) and at 5 min post‐procedure (VAS 4.2/10 vs 3.2/10) (both P > 0.05). The likelihood of recommending the procedure to a friend was similar in both groups (mean VAS 6.9/10 vs 7.2/10; P = 0.1). Conclusion The temperature of the distension medium did not influence ease of procedure, clarity of hysteroscopy view, procedural discomfort/pain and patient satisfaction. Patients were not any more likely to recommend the procedure to a friend in the warmed saline compared to the room temperature group.

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Section: Discussioncontrasting

confidence: 70%

Does temperature of distending medium matter in outpatient hysteroscopy? A double‐blinded cohort control observational study of room temperature versus warmed saline

Kapur

Gruber

Sekar

et al. 2020

J of Obstet and Gynaecol

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“…(3) When the irrigation fluid is warmed from 17°C-37°C there is a corresponding change in the density and dynamic fluidity of the fluid used for irrigation and this is accompanied by an increase in the mean absorption of the fluid by as much as 54% and this may lead to decrease in the safe period of time for surgery by as much as 65%. [29] In our study, we did not look into this aspect and this is likely to influence our results.…”

Section: Discussionmentioning

confidence: 97%

Effect of irrigation fluid temperature on core temperature and hemodynamic changes in transurethral resection of prostate under spinal anesthesia

et al. 2014

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Background:Hypothermia is a frequent observation in elderly males undergoing transurethral resection of prostate (TURP) under spinal anesthesia. The use of irrigating fluids at room temperature results in a decrease body temperature. Warmed irrigating solutions have shown to reduce heat loss and the resultant shivering. Such investigation was not much tried in low resource settings.Aim:To compare the resultant change in core temperature and hemodynamic changes among patients undergoing TURP surgery under spinal anesthesia using warm and room temperature irrigation fluids.Settings and Design:Randomized prospective study at a tertiary care center.Methods:This study was conducted on 40 male patients aged 50-85 years undergoing TURP under spinal anesthesia. Of which, 20 patients received irrigation fluid at room temperature 21°C and 20 patients received irrigation fluid at 37°C after random allocation. Core temperatures and hemodynamic parameters were assessed in all patients at preoperative, intra-operative, and postoperative periods. Intra-operative shivering was also noted in both groups.Statistical Analysis:Unpaired and Paired Student's t-test.Results:For patients who underwent irrigation with fluid at room temperature Core temperature drop from 36.97°C in preoperative to 34.54°C in postoperative period with an effective difference of 2.38°C. Among patients who received warmed irrigation fluid at 37°C had core temperature drop from 36.97°C to 36.17°C and the effect of fall was 0.8°C. This difference was statistically significant (P < 0.001). Shivering of Grades 1 and 2 was observed in nine patients, of Group 1 while only three patients had Grades 1 and 2 shivering in Group 2. The hemodynamic parameters were similar in the two groups and did not reach significant difference.Conclusion:Use of warm irrigation fluid during TURP reduces the risk of perioperative hypothermia and shivering.

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“…24 Another limitation of our study was that when the irrigation fluid is warmed from 17 °C to 37 °C there is corresponding change in the density and dynamic fluidity of the irrigating fluid. 25 This aspect of fluid dynamic change should also be considered when it is warmed. In our study we did not look into this aspect.…”

Section: Discussionmentioning

confidence: 99%

Effect of the Irrigation Fluid Temperature on Core Temperature in Transurethral Resection of Prostate Patients Under Spinal Versus General Anaesthesia

Kumar¹,

Asthana²,

Sharma³

et al. 2018

Res Pract Anesthesiol Open J

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Cite this articleKumar R, Asthana V, Sharma JP, Lal S. Effect of the irrigation fluid temperature on core temperature in Transurethral resection of prostate patients under spinal versus general anaesthesia. ABSTRACTCopyright 2018 by Asthana V. This is an open-access article distributed under Creative Commons Attribution 4.0 International License (CC BY 4.0), which allows to copy, redistribute, remix, transform, and reproduce in any medium or format, even commercially, provided the original work is properly cited. Study DesignProspective, randomized control trial. ObjectivesTo evaluate and compare the effect of warm and unwarmed irrigation fluid and anaesthetic technique on core temperature in patients undergoing Transurethral resection of prostate. Summary of Background DataMaterial and Methods: The present study was conducted in 80 patients belonging to age group18-75 yrs of posted for TURP under general anaesthesia or spinal anaesthesia. Group A: General Anaesthesia with irrigation fluid at room temperature. Group B: GeneralAnaesthesia with irrigation fluid at 37 °C. Group C: Spinal Anaesthesia with irrigation fluid at room temperature. Group D: Spinal Anaesthesia with irrigation fluid at at 37 °C. ResultsAmongst the four Groups, all the subjects showed consistently reduced core temperature which was statistically significant (p<0.05) at all time intervals. Core temperatures were lower in the group receiving unwarmed irrigation fluid compared with the prewarmed irrigation fluid group at the end of surgery. The mean decrease in core temperature at the end of surgery 4.Use of prewarm irrigation fluid resulted in lesser drop in core temperature as compared than that receiving unwarmed irrigation fluid. The drop was relatively least in patients under general anaesthesia.

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Effect of temperature on fluidity of irrigation fluids

Abstract: Compared with cold fluids, isothermic IRRSOL may increase the risk of fluid overload because dynamic viscosity decreases at higher temperatures.

Cited by 20 publications

References 25 publications

Does temperature of distending medium matter in outpatient hysteroscopy? A double‐blinded cohort control observational study of room temperature versus warmed saline

Does temperature of distending medium matter in outpatient hysteroscopy? A double‐blinded cohort control observational study of room temperature versus warmed saline

Effect of irrigation fluid temperature on core temperature and hemodynamic changes in transurethral resection of prostate under spinal anesthesia

Effect of the Irrigation Fluid Temperature on Core Temperature in Transurethral Resection of Prostate Patients Under Spinal Versus General Anaesthesia

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