55 results match your criteria radiant heater


Comparison of Three Different Cord Clamping Techniques Regarding Oxidative-antioxidative Capacity in Term Newborns.

Am J Perinatol 2022 Jan 13. Epub 2022 Jan 13.

Biochemistry, Gaziantep University, Gaziantep, Turkey.

Objective As newborns are exposed to oxidative stress during delivery, cord clamping techniques play significant role on antioxidant status. In this study, we aimed to show the relationship between early cord clamping (ECC), delayed cord clamping (DCC) and cut umblical cord milking (C-UCM) techniques with total oxidant capacity (TOC), total antioxidant capacity (TAC) and peroxynitrite levels. Study Design Sixty-nine term infants were selected with APGAR score of 7 and above in the first and fifth minutes. Read More

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January 2022

Prospective cohort study of bedroom heating and risk of common cold in children.

Pediatr Int 2022 Jan;64(1):e14755

Department of Environmental Epidemiology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan.

Background: In countries with mild winter climates and inadequate heating, the relationship between housing conditions and health outcomes in winter have not been well studied. The purpose of the present study was to evaluate the relationship between heater type and temperature factors in the bedroom and incidence of the common cold among children in Japan.

Methods: In this prospective cohort study, we distributed baseline questionnaires and temperature loggers in December 2019 and administered follow-up questionnaires in March 2020. Read More

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January 2022

Visualization of superficial vein dynamics in dorsal hand by near-infrared imaging in response to elevated local temperature.

J Biomed Opt 2021 02;26(2)

Kookmin Univ., Korea, Republic of.

Significance: Dry or moist skin-contact thermal stimulation for vein puncture (VP) and vein cannulation (VC) may not be feasible for sensitive skin. For a damaged, burned, or dark skin, near-infrared (NIR) imaging is preferred to visualize a vein. Postprocessing of NIR images is always required because the skin is a reflective material and veins need segmentation for quantitative analysis. Read More

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February 2021

Disposable low-cost cardboard incubator for thermoregulation of stable preterm infant - a randomized controlled non-inferiority trial.

EClinicalMedicine 2021 Jan 7;31:100664. Epub 2020 Dec 7.

Department of Neonatology, Sri Ramachandra Medical College and Research Institute, Porur, Chennai, India.

Background: Incubators and radiant warmers are essential equipment in neonatal care, but the typical 1,500 to 35,000 USD cost per device makes it unaffordable for many units in low and middle-income countries. We aimed to determine whether stable preterm infants could maintain thermoregulation for 48 h in a low-cost incubator (LCI).

Methods: The LCI was constructed using a servo-heater costing 200 USD and cardboard infant-chamber. Read More

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January 2021

Too Hot to Handle? Full-Thickness Burn Injury in a Child Caused by Cyanoacrylate Glue and Cotton-A Case Report and Experimental Study.

J Burn Care Res 2021 05;42(3):564-568

The Burns Unit, The Children's Hospital at Westmead and The Children's Hospital Burns Research Institute, The Children's Hospital at Westmead, New South Wales, Australia.

Domestic superglue (cyanoacrylate) in the hands of children can have devastating consequences, especially when cotton clothing is involved. When cotton comes into contact with cyanoacrylate, an intense exothermic reaction occurs, creating temperatures high enough to cause significant thermal injury. A literature review found 16 such cases of burns documented (2 adult and 14 pediatric). Read More

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Protocol for a randomised trial of early kangaroo mother care compared to standard care on survival of pre-stabilised preterm neonates in The Gambia (eKMC).

Trials 2020 Mar 6;21(1):247. Epub 2020 Mar 6.

Faculty of Epidemiology and Population Health, and MARCH Centre, London School of Hygiene & Tropical Medicine (LSHTM), Keppel Street, London, UK.

Background: Complications of preterm birth cause more than 1 million deaths each year, mostly within the first day after birth (47%) and before full post-natal stabilisation. Kangaroo mother care (KMC), provided as continuous skin-to-skin contact for 18 h per day to fully stabilised neonates ≤ 2000 g, reduces mortality by 36-51% at discharge or term-corrected age compared with incubator care. The mortality effect of starting continuous KMC before stabilisation is a priority evidence gap, which we aim to investigate in the eKMC trial, with a secondary aim of understanding mechanisms, particularly for infection prevention. Read More

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The ability of different thermal aids to reduce hypothermia in neonatal piglets.

J Anim Sci 2016 May;94(5):2151-9

We investigated whether hypothermia in newborn piglets could be reduced by applying different thermal aids. The experiment was performed on 150 newborn piglets from 24 sows. Right after birth, the piglets were moved to a wire mesh cage for the first 2 h of life where they experienced 1 of 7 different combinations of flooring (solid vs. Read More

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Concentrating nanoparticles in environmental monitoring.

Environ Toxicol Pharmacol 2015 Jul 14;40(1):187-90. Epub 2015 Jun 14.

Laboratory for Optics and Applied Mechanics, Department of Mechanical & Aerospace Engineering, Monash University, Clayton, Victoria 3800, Australia. Electronic address:

There are significant challenges in assessing the toxicity of nanoparticles in the environment in which effective methods for detection are crucial. An inexpensive method that uses superhydrophobic well with an evaporating droplet followed by a simple squeeze flow is described here and found to provide practical high nanoparticle collection from samples for detection. The process could be hastened by placing a radiant heater close to the droplet if temperature rises in the sample can be tolerated. Read More

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Hybrid heating systems optimization of residential environment to have thermal comfort conditions by numerical simulation.

J Environ Health Sci Eng 2015 31;13:50. Epub 2015 May 31.

Mechanical Engineering Department, K. N. Toosi University of Technology, Tehran, Iran.

The aim of this study is to determine optimum hybrid heating systems parameters, such as temperature, surface area of a radiant heater and vent area to have thermal comfort conditions. DOE, Factorial design method is used to determine the optimum values for input parameters. A 3D model of a virtual standing thermal manikin with real dimensions is considered in this study. Read More

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Application of plastic wrap to improve temperatures in infants born less than 30 weeks gestation: a randomized controlled trial.

Neonatal Netw 2013 Jul-Aug;32(4):235-45

HDipNeoIntCare, Townsville Hospital in Australia, Magnetic Island, Queensland, Australia.

Purpose: The primary aim of the study was to evaluate whether the application of a plastic wrap immediately after birth is more effective than the standard care of temperature management for improving admission temperatures to the neonatal intensive care unit (NICU) in infants <30 weeks gestation.

Design: A randomized controlled trial was conducted. Infants in the intervention group were transferred to a prewarmed radiant heater immediately after birth and encased in NeoWrap from the neck down without being dried. Read More

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Oxygen saturation of healthy term neonates during the first 30 minutes of life.

Pediatr Int 2013 Feb 28;55(1):44-8. Epub 2012 Nov 28.

Department of Paediatrics, Bakırkoy Dr Sadi Konuk Training and Research Hospital, Istanbul, Turkey.

Background: The purpose of this study was to document the oxygen saturation (SpO(2) ), general physical signs and laboratory characteristics during the first 30 min of life.

Methods: Forty healthy singleton full-term neonates delivered vaginally (n = 33) or by cesarean section (n = 7) were included in this prospective observational study. After delivery, the SpO(2) levels of the upper (right hand; 'preductal') and lower (dorsum of the right foot; 'postductal') extremities of the neonates lying on the servo-controlled radiant heater in the delivery room were measured simultaneously with oximeter probes (Oxiprobe BM-270) placed at 1, 5, 10, 15, 20, 25, and 30 min. Read More

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February 2013

Certain Fisher & Paykel infant radiant warmers require inspection and possible component replacement.

Authors:

Health Devices 2011 Oct;40(10):349-50

In certain versions of Fisher & Paykel IW900 series infant radiant warmers, a wiring harness connector located near the heater head assembly may become damaged and overheat during routine use, potentially rendering the warmer inoperable. Although Fisher & Paykel states that the risk to patients is low, facilities with affected warmers should inspect the connectors and, if damage or discoloration is evident, contact the company to arrange for replacement of the wiring harness/connector assemblies. Fisher & Paykel intends to release an Advisory Notice to guide customers in the inspection. Read More

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October 2011

Development of a novel animal burn model using radiant heat in rats and swine.

Acad Emerg Med 2010 May;17(5):514-20

Department of Plastic and Reconstructive Surgery Soroka University Medical Center, Beer-Sheva, Israel.

Objectives: The objective was to develop a novel animal model of burns in rats and pigs.

Methods: The model uses heat that is delivered via a radiant heater with an opening of 5 cm by 5 cm, set at 400 degrees C, for 20 seconds. An advantage of this model is that the heating source does not come into direct contact with the animal, and the heat dispersion surrounding its center is very constant. Read More

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Skin conductance as a measure of pain and stress in hospitalised infants.

Early Hum Dev 2006 Sep 28;82(9):603-8. Epub 2006 Feb 28.

Department of Neonatology, Royal Children's Hospital, Melbourne, Australia.

Background: Reliable and valid methods of measuring pain responses in infants continue to be sought as a means of evaluating the effectiveness of pain reduction strategies. Skin conductance has recently been shown to be a promising physiological indicator of pain and stress in premature and term infants.

Aim: To evaluate changes in skin conductance in hospitalised infants under different environmental conditions and during both painful and non-painful procedures. Read More

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September 2006

Efficacy of postoperative rewarming after cardiac surgery.

Ann Thorac Cardiovasc Surg 2004 Jun;10(3):171-7

Department of Anesthesiology, Emergency and Intensive Care Medicine, University of Götingen, Göttingen, Germany.

Objective: To compare the efficacy of forced-air warmers and radiant heaters on rewarming after cardiac surgery in a prospective randomized study.

Methods: Fifty male patients who had undergone coronary artery bypass graft surgery were studied. The control group (Gr. Read More

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Evaluation of four warming procedures to minimise heat loss induced by anaesthesia and surgery in dogs.

Aust Vet J 2004 Jan-Feb;82(1-2):65-8

University Veterinary Centre-Sydney, Faculty of Veterinary Science, The University of Sydney, New South Wales 2006.

Objective: To evaluate the efficiency of four warming procedures, introduced after anaesthetic induction and continued during surgery, in minimising heat loss in anaesthetised dogs.

Design: Dogs were paired. One of each pair was a control; the other was subjected to one of four warming procedures. Read More

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Simulating irradiation power density on body surface in postmortem cooling.

Leg Med (Tokyo) 2004 Apr;6(2):131-40

Institute of Legal Medicine, University of Munich, Frauenlobstrasse 7a, 80337 Munich, Germany.

Irradiation poses a major problem to determining the time since death by temperature-based methods. Neither empirical nor heat-flow postmortem cooling models have so far been able to assess irradiation. Heat-flow models seem overall better suited to calculate irradiation because of their direct relation to the physics of heat transfer. Read More

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Brain temperature in newborn piglets under selective head cooling with minimal systemic hypothermia.

Pediatr Int 2003 Apr;45(2):163-8

Division of Neonatology, Perinatal Center, Nagano Children's Hospital, Toyoshina, Nagano, Japan.

Background: Although selective brain hypothermia is expected to be a promising neuroprotective treatment, the thermal distribution under hypothermia is not fully investigated. We applied selective head cooling to seven newborn piglets under general anesthesia in order to investigate the mechanism of cooling.

Methods: Seven healthy, large white piglets aged within 5 days after birth were studied. Read More

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Effect of three resuscitation procedures on respiratory and metabolic adaptation to extra uterine life in newborn calves.

Vet J 2002 Jan;163(1):30-44

Laboratory for Functional Investigation, Department of Physiology, Faculty of Veterinary Medicine, University of Liège, Belgium.

The purpose of this study was to evaluate the effects of three resuscitation procedures on respiratory and metabolic adaptation to extra-uterine life during the first 24 h after birth in healthy newborn calves. Twenty-four newborn calves were randomly grouped into four categories: six calves did not receive any specific resuscitation procedure and were considered as controls (C); six received pharyngeal and nasal suctioning immediately after birth by use of a hand-powered vacuum pump (SUC); six received five litres of cold water poured over their heads immediately after birth (CW) and six were housed in a calf pen with an infrared radiant heater for 24 h after birth (IR). Calves were examined at birth, 5, 15, 30, 45 and 60 min, 2, 3, 6, 12 and 24 h after birth and the following measurements were recorded: physical and clinical examination, arterial blood gas analysis, pulmonary function tests using the oesophageal balloon catheter technique, arterial and venous blood acid-base balance analysis, jugular venous blood sampling for determination of metabolic, haematological and passive immune transfer variables. Read More

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January 2002

Temperature and heater responses during transition between radiant and incubator thermal environment in newborn preterm lambs.

Biol Neonate 2001 ;80(4):286-94

Division of Neonatology, Jefferson Medical College, Thomas Jefferson University Hospital, 1025 Walnut Street, Philadelphia, PA 19107, USA.

Objective: Although both incubators and radiant warmer beds can provide thermal support to infants in the neonatal intensive care unit, the transition between devices can be a stressful event. The goal of this study was to evaluate a new device that combines these methods of warming and converts between them without requiring physical movement of the infant.

Study Design: Twin preterm lambs received thermal support from a radiant warmer bed and an incubator (control), or from the Versalet 7700 Care Center (treatment) in the warmer and incubator configurations. Read More

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January 2002

Dynamic thermal responses of five commercially available infant radiant warmer systems.

Biomed Instrum Technol 2000 May-Jun;34(3):203-11

Ohmeda Medical, Columbia, MD 21046, USA.

Five commercially available infant radiant warmer systems were characterized through radiant-energy measurements at the mattress surface under identical environmental conditions. Average irradiance levels for each warmer were then calculated. In addition, all systems were thermally evaluated for warm-up time using the International IEC standard black anodized aluminum disk simulator. Read More

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October 2000

Severe infantile hypothermia: short- and long-term outcome.

Authors:
S Sofer E Benkovich

Intensive Care Med 2000 Jan;26(1):88-92

Pediatric Intensive Care Unit, Division of Pediatrics, Soroka Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, P. O.B 151, 84 101 Israel.

Objective: To determine short- and long-term outcomes of infants with severe hypothermia (< or = 28 degrees C) treated in a pediatric intensive care unit (PICU).

Design: (1) Retrospective evaluation of medical records of all patients admitted for severe infantile hypothermia from 1984 to 1993. (2) Medical and developmental evaluations of survivors of severe infantile hypothermia 3-12 years after hospital discharge. Read More

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January 2000

Local radiant heating increases subcutaneous oxygen tension.

Am J Surg 1998 Jan;175(1):33-7

Department of Anesthesia and Perioperative Care, University of California, San Francisco, 94143-0648, USA.

Background: We evaluated a novel bandage that incorporates a thermostatically controlled radiant heater. We first determined optimal bandage temperature, based on increases in subcutaneous oxygen tension, a measure correlating well with resistance to infection and wound strength. We then tested the hypothesis that prolonged radiant heating would increase collagen deposition in experimental thigh wounds. Read More

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January 1998

[Efficacy of ring-shape cover in active skin surface warming in neonates--a retrospective comparative study with conventional methods].

Masui 1997 Oct;46(10):1362-7

Department of Anesthesiology, National Kagawa Children's Hospital, Zentsuji.

Unlabelled: Prevention of perioperative hypothermia is one of the most essential factor for neonatal anesthesia. Recently the forced-air warming system has been considered the most effective method in preventing perioperative hypothermia in adults, in children, and in infants during maxillofacial operations. However, its use for abdominal or thoracic surgery in neonates has not been examined. Read More

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October 1997

Neutral temperature range in incubators: performance of equipment in current use and new developments.

Crit Rev Biomed Eng 1997 ;25(4-5):287-370

Unité de Recherches sur les Adaptations Physiologiques et Comportementales (EA 2088), Faculté de Médecine, Université de Picardie Jules Verne, Amiens, France.

Low-birth-weight neonates should be nursed at thermoneutrality inside incubators. Thermoneutrality control is essential to enhance body growth and to reduce neonatal illnesses and mortality. Guidelines have been published to provide the thermoneutral range, but the recommendations did not always take into account all ambient and physiological parameters influencing thermoneutrality. Read More

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Effect of radiant heat on head temperature gradient in term infants.

Authors:
A J Gunn T R Gunn

Arch Dis Child Fetal Neonatal Ed 1996 May;74(3):F200-3

Department of Paediatrics, University of Auckland, New Zealand.

Aims: To test the hypothesis that external radiant heating might lead to significant fluctuations in superficial and core head temperatures in newborn infants.

Methods: In an observation group of 14 term infants nursed under a radiant heater, servo-controlled to the abdominal skin, changes in rectal, core head, and scalp temperatures with heater activation were examined. In a further intervention group of six infants the effect of a reflective head shield on the fluctuations of scalp temperature was also tested. Read More

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Effect of a radiant heater on post-operative hypothermia: comparison with a reflective blanket.

Eur J Anaesthesiol 1995 Nov;12(6):565-9

Department of Anaesthesia, Aalborg Hospital, Denmark.

Thirty patients with post-operative hypothermia following major surgery (thoracic, abdominal, orthopaedic) were allocated randomly to either active warming with a radiant heater (500 W) or passive rewarming with a reflective blanket. Rectal temperature, mean skin temperature (at four measuring sites), continuous haemoglobin saturation and shivering were measured for 2 h post-operatively. Although post-operative heat supply with a radiant heater resulted in faster rewarming, there were no differences between the two groups with respect to haemoglobin saturation and shivering. Read More

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November 1995

"Silent" malfunction of a critical-care device caused by electromagnetic interference.

Biomed Instrum Technol 1995 Jul-Aug;29(4):350-4

Department of Otolaryngology, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, Quebec, Canada.

Although there have been many previous reports of serious medical device malfunctions caused by electromagnetic interference (EMI), it is not widely recognized that many such malfunctions were "silent," having occurred without triggering a device alarm. The authors describe one such malfunction, and its implications. An 8-year-old radiant heater, which appeared to be operating normally in a neonatal intensive care unit, was observed, by mere chance, to intermittently register an increased, or decreased, neonatal skin temperature of about 1 degree C, depending on personnel movements and on its location in the room. Read More

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November 1995

Improved transport incubator temperature control with insulating thermal cover.

Air Med J 1995 Apr-Jun;14(2):65-8

British Columbia Children's Hospital, Vancouver.

Introduction: Cold stress, secondary to heat loss, can compromise infants in transport incubators during interfacility transfer. With current incubator designs, considerable radiant heat loss occurs. The use of additional external thermal insulation to reduce heat loss has been recommended for infant transports in cold environments. Read More

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Cutaneous heat loss in children during anaesthesia.

Br J Anaesth 1995 Mar;74(3):306-10

Oulu Regional Institute of Occupational Health, Finland.

We have measured non-evaporative, cutaneous heat loss using heat flux transducers at eight skin sites in five children during anaesthesia and compared the data with basal metabolic heat production. The effect of disposable surgical covering and a radiant heater on heat flux was examined. The mean total heat flow rate before draping was 3-9 W higher than the basal metabolic rate after induction of anaesthesia with a simultaneous decrease in rectal temperature. Read More

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