scholarly journals The impact of prewarming on core temperature and cases of inadvertant perioperative hypothermia in oncogynecologal surgery

2017 ◽  
Author(s):  
Artur Pasheev
Keyword(s):  
Core Temperature ◽  
Perioperative Hypothermia ◽  
The Impact

scholarly journals Effectiveness of Combined Strategies for the Prevention of Hypothermia Measured by Noninvasive Zero-Heat Flux Thermometer During Cesarean Section

2021 ◽  
Vol 8 ◽  
Author(s):  
Antonella Cotoia ◽  
Paola Sara Mariotti ◽  
Claudia Ferialdi ◽  
Pasquale Del Vecchio ◽  
Renata Beck ◽  
...  
Keyword(s):  
Thermal Comfort ◽  
Pregnant Women ◽  
Cesarean Delivery ◽  
Core Temperature ◽  
Study Groups ◽  
Gas Analysis ◽  
Axillary Temperature ◽  
Perioperative Hypothermia ◽  
Forced Air Warming ◽  
The Impact

Background: Perioperative hypothermia (body temperature <36°C) is a common complication of anesthesia increasing the risk for maternal cardiovascular events and coagulative disorders, and can also influence neonatal health. The aim of our work was to evaluate the impact of combined warming strategies on maternal core temperature, measured with the SpotOn. We hypothesized that combined modalities of active warming prevent hypothermia in pregnant women undergoing cesarean delivery with spinal anesthesia.Methods: Seventy-eight pregnant women were randomly allocated into three study groups receiving warmed IV fluids and forced-air warming (AW), warmed IV fluids (WF), or no warming (NW). Noninvasive core temperature device (SpotOn) measured maternal core temperature intraoperatively and for 30 min after surgery. Maternal mean arterial pressure, incidence of shivering, thermal comfort and newborn's APGAR, axillary temperature, weight, and blood gas analysis were also recorded.Results: Incidence of hypothermia was of 0% in AW, 4% in WF, and 47% in NW. Core temperature in AW was constantly higher than WF and NW groups. Incidence of shivering in perioperative time was significantly lower in AW and WF groups compared with the NW group (p < 0.04). Thermal comfort was higher in both AW and WF groups compared with NW group (p = 0.02 and p = 0.008, respectively). There were no significant differences among groups for the other evaluated parameters.Conclusion: Combined modalities of active warming are effective in preventing perioperative hypothermia. The routine uses of combined AW are suggested in the setting of cesarean delivery.

Comparison of Conductive and Convective Warming in Patients Undergoing Video-Assisted Thoracic Surgery: A Prospective Randomized Clinical Trial

2016 ◽  
Vol 65 (05) ◽  
pp. 362-366 ◽  
Author(s):  
Robert Franke ◽  
Ivo Brandes ◽  
Marc Hinterthaner ◽  
Bernhard Danner ◽  
Martin Bauer ◽  
...  
Keyword(s):  
Thoracic Surgery ◽  
Core Temperature ◽  
Lateral Position ◽  
Clinical Parameter ◽  
Body Contact ◽  
Video Assisted Thoracic Surgery ◽  
Perioperative Hypothermia ◽  
Video Assisted ◽  
Reduced Body ◽  
Convective Warming

Background Perioperative hypothermia is frequent during thoracic surgery. After approval by the local ethics committee and written informed consent from patients, we examined the efficiency of prewarming and intraoperative warming with a convective warming system and conductive warming system to prevent perioperative hypothermia during video-assisted thoracic surgery (VATS). Methods We randomized 60 patients with indication for VATS in two groups (convective warming with an underbody blanket vs. conductive warming with an underbody mattress and additional warming of the legs). All patients were prewarmed before induction of anesthesia with the corresponding system. Core temperature was measured sublingual and in the nasopharynx. Results Both groups were not significantly different in regard to clinical parameter, prewarming, and initial core temperature. The patients in conduction group had lower intraoperative core temperatures and a higher incidence of intraoperative (73.9 vs. 24%) and postoperative hypothermia (56.5 vs. 8%) compared with convective warming. Conclusions Pre- and intraoperative convective warming with an underbody blanket prevents perioperative hypothermia during VATS better than conductive warming. The inferior prevention in conductive warming group may be caused by reduced body contact to the warming mattresses in lateral position.

The Impact of Elevated Body Core Temperature on Critical Power as Determined by a 3-min All-Out Test

2021 ◽  
Author(s):  
Brendan W. Kaiser ◽  
Ka'eo K. Kruse ◽  
Brandon M. Gibson ◽  
Kelsey J. Santisteban ◽  
Emily A. Larson ◽  
...  
Keyword(s):  
Core Temperature ◽  
Critical Power ◽  
Work Capacity ◽  
Cycle Ergometer ◽  
Body Core Temperature ◽  
Test Power ◽  
Body Core ◽  
Severe Exercise ◽  
Duration Relationship ◽  
The Impact

Critical power (CP) delineates the heavy and severe exercise intensity domains, and sustained work rates above CP result in an inexorable progression of oxygen uptake to a maximal value and, subsequently, the limit of exercise tolerance. The finite work capacity above CP, W′, is defined by the curvature constant of the power-duration relationship. Heavy or severe exercise in a hot environment generates additional challenges related to the rise in body core temperature (Tc) that may impact CP and W′. The purpose of this study was to determine the effect of elevated Tc on CP and W′. CP and W′ were estimated by end-test power (EP; mean of final 30s) and work above end-test power (WEP), respectively, from 3-min "all-out" tests performed on a cycle ergometer. Volunteers (n = 8, 4 female) performed the 3-min tests during a familiarization visit and two experimental visits (Thermoneutral vs Hot, randomized crossover design). Before experimental 3-min tests, subjects were immersed in water (Thermoneutral: 36°C for 30 min; Hot: 40.5°C until Tc was ≥ 38.5°C). Mean Tc was significantly greater in Hot compared to Thermoneutral (38.5±0.0°C vs. 37.4±0.2°C; mean±SD, P<0.01). All 3-min tests were performed in an environmental chamber (Thermoneutral: 18°C, 45% RH; Hot: 38°C, 40% RH). EP was similar between Thermoneutral (239 ± 57W) and Hot (234 ± 66W; P = 0.55). WEP was similar between Thermoneutral (10.9 ± 3.0 kJ) and Hot (9.3 ± 3.6; P = 0.19). These results suggest that elevated Tc has no significant impact on EP or WEP.

Prewarming: Preventing Intraoperative Hypothermia

2005 ◽  
Vol 15 (10) ◽  
pp. 444-451 ◽  
Author(s):  
Panagiotis Kiekkas ◽  
Maria Karga
Keyword(s):  
Temperature Gradient ◽  
Core Temperature ◽  
Peripheral Tissue ◽  
Tissue Temperature ◽  
Temperature Decrease ◽  
Perioperative Hypothermia ◽  
Normal Limits ◽  
Normal Core ◽  
Short Period ◽  
Peripheral Temperature

Perioperative hypothermia can be followed by severe complications. The greatest proportion of temperature decrease is attributed to heat redistribution, which mainly occurs during the first hour of anaesthesia and is difficult to treat intraoperatively. Prewarming, based on active warming techniques, has been proposed. Even a short period of prewarming may significantly increase peripheral tissue temperature, minimise normal core-to-peripheral temperature gradient, and keep core temperature within normal limits.

Impact of Successive Exertional Heat Injuries on Thermoregulatory and Systemic Inflammatory Responses in Mice

2021 ◽  
Author(s):  
Aaron R. Caldwell ◽  
Kentaro Oki ◽  
Shauna M. Ward ◽  
Jermaine A. Ward ◽  
Thomas A. Mayer ◽  
...  
Keyword(s):  
Core Temperature ◽  
Injury Severity ◽  
Inflammatory Responses ◽  
Recovery Period ◽  
Organ Damage ◽  
Open Science ◽  
Tissue Samples ◽  
Adaptive Processes ◽  
Science Framework ◽  
The Impact

The purpose of the study was to determine if repeated exertional heat injuries (EHIs) worsen the inflammatory response and subsequent organ damage. We assessed the impact of a single EHI bout (EHI0) or 2 separate EHI episodes separated by 1 (EHI1), 3 (EHI3), and 7 (EHI7) days in male C57BL/6J mice (N = 236). To induce EHI, mice underwent a forced running protocol until loss of consciousness or core temperature reached ≥ 42.7°C. Blood and tissue samples were obtained 30 minutes, 3 hours, 1 day or 7 days after the EHI. We observed that mice undergoing repeated EHI events (EHI1, EHI3, and EHI7) had longer running distances prior to collapse (~ 528 meters), tolerated higher core temperatures (~0.18°C) prior to collapse, and had higher minimum core temperature (indicative of injury severity) during recovery relative to EHI0 group (~2.18°C; all P < .05). Heat resilience was most pronounced when latency was shortest between EHI episodes (i.e., thermal load and running duration highest in EHI1), suggesting the response diminishes with longer recoveries between EHI events. Furthermore, mice experiencing a second EHI exhibited increased serum & liver HSP70, and lower corticosterone, FABP2, MIP-1β, MIP-2, and IP-10 relative to mice experiencing a single EHI at specific points during the recovery period (typically 30-min to 3-hr after the EHI). Our findings indicate that an EHI event may initiate some adaptive processes that provide acute heat resilience to subsequent EHI conditions. Data and code are available at Open Science Framework repository: https://osf.io/n5ahf/?view_only=bca7ccb1b1554e1192ae776e6a7584d3

scholarly journals The Impact of Perioperative Hypothermia on Plastic Surgery Outcomes: A Multivariate Logistic Regression of 1062 Cases

2015 ◽  
Vol 35 (1) ◽  
pp. 81-88 ◽  
Author(s):  
Ryan S. Constantine ◽  
Matthew Kenkel ◽  
Rachel E. Hein ◽  
Roberto Cortez ◽  
Kendall Anigian ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Plastic Surgery ◽  
Multivariate Logistic Regression ◽  
Perioperative Hypothermia ◽  
Surgery Outcomes ◽  
The Impact

scholarly journals Influence of insufflated carbon dioxide on abdominal temperature compared to oesophageal temperature during laparoscopic surgery

2020 ◽  
Author(s):  
Philipp Groene ◽  
Ufuk Gündogar ◽  
Klaus Hofmann-Kiefer ◽  
Roland Ladurner
Keyword(s):  
Carbon Dioxide ◽  
Laparoscopic Surgery ◽  
Core Temperature ◽  
Room Temperature ◽  
Skin Incision ◽  
Body Core Temperature ◽  
Oesophageal Temperature ◽  
Observational Trial ◽  
Body Core ◽  
The Impact

Abstract Background Body core temperature is an important vital parameter during surgery and anaesthesia. It is influenced by several patient-related and surgery-related factors. Laparoscopy is considered beneficial in terms of a variety of parameters, for example, postoperative pain and length of hospital stay. Non-humidified, non-warmed insufflated CO2 applied during laparoscopy is standard of care. This prospective observational trial therefore evaluates the impact of non-humidified CO2 at room temperature on abdominal temperature and its correlation to body core temperature. Methods Seventy patients undergoing laparoscopic surgery were included in this prospective observational study. Temperature was measured oesophageal and abdominal before induction of anaesthesia (T1), right before skin incision (T2), 15 min, 30 min and 60 min after skin incision. All patients were treated according to actual guidelines for perioperative temperature measurement. Results Body core temperature and abdominal temperature correlated moderately (r = 0.6123; p < 0.0001). Bland–Altman plot for comparison of methods showed an average difference of 0.4 °C (bias − 0.3955; 95% agreement of bias from − 2.365 to 1.574). Abdominal temperature further decreased after establishing pneumoperitoneum (T2: 36.2 °C (35.9/36.4) to T5: 36.1 °C (35.6/36.4); p < 0.0001), whereas oesophageal temperature increased (T2: 36.2 °C (35.9/36.4) to 36.4 °C (36.0/36.7); p = 0.0296). Values of oesophageal and abdominal measurement points differed at T4 (36.3 °C (36.0/36.6) vs. 36.1 °C (35.4/36.6); p < 0.0001) and T5 (36.4 °C (36.0/36.7) vs. 36.1 °C (35.6/36.4) p = 0.0003). Conclusion This prospective observational trial shows the influence of insufflated, non-humidified carbon dioxide at room temperature on abdominal temperature during laparoscopic surgery. We show that carbon dioxide applied at these conditions decreases abdominal temperature and therefore might be a risk factor for perioperative hypothermia.

Sign in / Sign up

Export Citation Format

Share Document