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1.
Indian J Pediatr ; 91(3): 235-241, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37199820

RESUMO

OBJECTIVES: Neonatal hypoxic-ischemic encephalopathy is a major cause of perinatal death and neurodevelopmental impairment (NDI). Hypothermia (HT) is the standard of care; however, additional neuroprotective agents are required to improve prognosis. The authors searched for all drugs in combination with HT and compared their effects using a network meta-analysis. METHODS: The authors searched PubMed, Embase, and Cochrane Library until September 24, 2022 for articles assessing mortality, NDI, seizures, and abnormal brain imaging findings in neonates with hypoxic-ischemic encephalopathy. Direct pairwise comparisons and a network meta-analysis was performed under random effects. RESULTS: Thirteen randomized clinical trials enroled 902 newborns treated with six combination therapies: erythropoietin magnesium sulfate, melatonin (MT), topiramate, xenon, and darbepoetin alfa. The results of all comparisons were not statistically significant, except for NDI, HT vs. MT+HT: odds ratio = 6.67, 95% confidence interval = 1.14-38.83; however, the overall evidence quality was low for the small sample size. CONCLUSIONS: Currently, no combination therapy can reduce mortality, seizures, or abnormal brain imaging findings in neonatal hypoxic-ischemic encephalopathy. According to low quality evidence, HT combined with MT may reduce NDI.


Assuntos
Hipotermia Induzida , Hipotermia , Hipóxia-Isquemia Encefálica , Recém-Nascido , Humanos , Hipóxia-Isquemia Encefálica/terapia , Hipotermia/terapia , Metanálise em Rede , Hipotermia Induzida/métodos , Convulsões/etiologia , Convulsões/terapia
2.
Int J Circumpolar Health ; 82(1): 2196047, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37161378

RESUMO

In Arctic or extreme cold environments of Alaska, trauma care is complicated by large expanses of geography and lack of forward-positioned resources. This paper presents four hypothetical vignettes highlighting austere cold medical priorities: (1) traumatic hypothermia management as part of Tactical Combat Casualty Care (TCCC) is clinically and tactically important and hypothermia needs to be reprioritized in the MARCH algorithm to MhARCH; (2) at present it is unknown which TCCC recommended medical equipment/supplies will function as designed in the extreme cold; (3) ensuring advanced resuscitative care measures are available serves as a temporal bridge until casualties can receive damage control resuscitation (DCR); and (4) current systems for managing traumatic hypothermia in TCCC and casualty evacuation (CASEVAC) are insufficient. In conclusion, numerous assessments recognise the DoD's current solutions for employing medical forces in Arctic operations are not optimally postured to save lives. There should be a joint standard for fielding an arctic supplement to current medical equipment sets. A new way of thinking in terms of an "ecosystem" approach of immediate casualty protection and movement in CASEVAC doctrine is needed to optimise these "Golden Minutes."


Assuntos
Frio Extremo , Hipotermia , Humanos , Hipotermia/terapia , Alaska , Suplementos Nutricionais , Ecossistema
3.
Zhongguo Dang Dai Er Ke Za Zhi ; 25(1): 86-90, 2023 Jan 15.
Artigo em Chinês | MEDLINE | ID: mdl-36655669

RESUMO

Neonatal hypoxic-ischemic encephalopathy (HIE) is a common disease that affects brain function in neonates. At present, mild hypothermia and hyperbaric oxygen therapy are the main methods for the treatment of neonatal HIE; however, they are independent of each other and cannot be combined for synchronous treatment, without monitoring of brain function-related physiological information. In addition, parameter setting of hyperbaric oxygen chamber and mild hypothermia mattress relies on the experience of the medical practitioner, and the parameters remain unchanged throughout the medical process. This article proposes a new device for the treatment of neonatal HIE, which has the modules of hyperbaric oxygen chamber and mild hypothermic mattress, so that neonates can receive the treatment of hyperbaric oxygen chamber and/or mild hypothermic mattress based on their conditions. Meanwhile, it can realize the real-time monitoring of various physiological information, including amplitude-integrated electroencephalogram, electrocardiogram, and near-infrared spectrum, which can monitor brain function, heart rate, rhythm, myocardial blood supply, hemoglobin concentration in brain tissue, and blood oxygen saturation. In combination with an intelligent control algorithm, the device can intelligently regulate parameters according to the physiological information of neonates and give recommendations for subsequent treatment.


Assuntos
Oxigenoterapia Hiperbárica , Hipotermia Induzida , Hipotermia , Hipóxia-Isquemia Encefálica , Recém-Nascido , Humanos , Hipotermia Induzida/métodos , Hipotermia/terapia , Encéfalo , Eletroencefalografia , Hipóxia-Isquemia Encefálica/terapia
4.
Cryobiology ; 110: 49-55, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36509162

RESUMO

The outcome of cardiac arrest is worse when there is fever after spontaneous circulation is restored (ROSC). The purpose of this study was to investigate the mechanism of post-ROSC cardiac dysfunction after hyperthermia treatment and the effects of temperature control. Twenty-four male Bama minipigs were randomized into 3 groups (8 per group): CPR + controlled normothermia (CN), CPR + hyperthermia (HT), and CPR + therapeutic mild hypothermia (TMH). Defibrillation was given to pigs with ventricular fibrillation after 8 min of untreated fibrillation. Subsequently, these animals received the post-ROSC treatments of hyperthermia (38 °C), controlled normothermia (37 °C) or hypothermia (33 °C) according to the groups. Hemodynamic parameters, left ventricular ejection fraction, blood samples and myocardial tissues were assessed. At 24 h after the post-ROSC treatments, the pigs treated with hyperthermia showed increments in heart rate and plasma cardiac troponin I, and decreases in mean arterial pressure, cardiac index, and left ventricular ejection fraction, compared to those with the controlled normothermia pigs. However, the deterioration of the above parameters can be attenuated by TMH. The pigs in the TMH group also had a reduced percentage of apoptotic cardiomyocytes, an increased anti-apoptotic Bcl-2/Bax ratio and a decreased caspase-3 activity in myocardium, as compared with both controlled normothermia and hyperthermia pigs. In conclusion, hyperthermia is associated with a worse myocardial dysfunction. TMH improves hyperthermia-induced myocardial dysfunction by attenuating apoptosis in a porcine model of cardiac arrest.


Assuntos
Reanimação Cardiopulmonar , Parada Cardíaca , Hipertermia Induzida , Hipotermia Induzida , Hipotermia , Suínos , Animais , Masculino , Volume Sistólico , Hipotermia/terapia , Temperatura , Porco Miniatura , Função Ventricular Esquerda , Criopreservação/métodos
5.
Artigo em Chinês | WPRIM | ID: wpr-971044

RESUMO

Neonatal hypoxic-ischemic encephalopathy (HIE) is a common disease that affects brain function in neonates. At present, mild hypothermia and hyperbaric oxygen therapy are the main methods for the treatment of neonatal HIE; however, they are independent of each other and cannot be combined for synchronous treatment, without monitoring of brain function-related physiological information. In addition, parameter setting of hyperbaric oxygen chamber and mild hypothermia mattress relies on the experience of the medical practitioner, and the parameters remain unchanged throughout the medical process. This article proposes a new device for the treatment of neonatal HIE, which has the modules of hyperbaric oxygen chamber and mild hypothermic mattress, so that neonates can receive the treatment of hyperbaric oxygen chamber and/or mild hypothermic mattress based on their conditions. Meanwhile, it can realize the real-time monitoring of various physiological information, including amplitude-integrated electroencephalogram, electrocardiogram, and near-infrared spectrum, which can monitor brain function, heart rate, rhythm, myocardial blood supply, hemoglobin concentration in brain tissue, and blood oxygen saturation. In combination with an intelligent control algorithm, the device can intelligently regulate parameters according to the physiological information of neonates and give recommendations for subsequent treatment.


Assuntos
Recém-Nascido , Humanos , Hipotermia Induzida/métodos , Hipotermia/terapia , Oxigenoterapia Hiperbárica , Encéfalo , Eletroencefalografia , Hipóxia-Isquemia Encefálica/terapia
6.
Transl Res ; 249: 37-48, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-35691543

RESUMO

Uncertainty exists regarding whether cyclophilin D (CypD), a mitochondrial matrix protein that plays a key role in ischemia-reperfusion injury, can be a pharmacological target for improving outcomes after cardiac arrest (CA), especially when therapeutic hypothermia is used. Using CypD knockout mice (CypD-/-), we investigated the effects of loss of CypD on short-term and medium-term outcomes after CA. CypD-/- mice or their wild-type (WT) littermates underwent either 5 minute CA followed by resuscitation with and/or without hypothermia at 33°C-34°C (targeted temperature reached within minutes after resuscitation), or a sham procedure. Brain and cardiac injury were assessed using echocardiography, neurological scores, MRI and biomarkers. Seven day survival was compared using Kaplan-Meier estimates. The rate of restoration of spontaneous circulation was significantly higher in CypD-/- mice (with shorter cardiac massage duration) than in WT mice (P < 0.05). Loss of CypD significantly attenuated CA-induced release of troponin and S100ß protein, and limited myocardial dysfunction at 150 minutes after CA. Loss of CypD combined with hypothermia led to the best neurological and MRI scores at 24 hours and highest survival rates at 7 days compared to other groups (P < 0.05). In animals successfully resuscitated, loss of CypD had no benefits on day 7 survival while hypothermia was highly protective. Pharmacological inhibition of CypD with cyclosporine A combined with hypothermia provided similar day 7 survival than loss of CypD combined with hypothermia. CypD is a viable target to improve success of cardiopulmonary resuscitation but its inhibition is unlikely to improve long-term outcomes, unless therapeutic hypothermia is associated.


Assuntos
Parada Cardíaca , Hipotermia Induzida , Hipotermia , Animais , Biomarcadores , Peptidil-Prolil Isomerase F , Ciclosporina/farmacologia , Ciclosporina/uso terapêutico , Parada Cardíaca/terapia , Hipotermia/terapia , Hipotermia Induzida/métodos , Camundongos , Camundongos Knockout , Troponina
7.
Explore (NY) ; 18(4): 446-456, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34969609

RESUMO

OBJECTIVES: Johrei is a type of biofield therapy that is said to bring physical and mental well-being to the recipient. This study sought to measure changes in body temperature and circulation resulting from Johrei treatment, for generally healthy subjects and for individuals with a tendency toward hypothermia. PARTICIPANTS: A total of 199 qualified Johrei practitioners and 144 non-qualified operators provided Johrei and placebo treatments, respectively. Volunteer subjects -186 in general health and 39 with a hypothermia tendency - participated in this study to receive either or both of these treatments. METHODS: Each subject was given a 10 min treatment daily by either a qualified practitioner or a non-qualified operator. The effects on subjects of receiving each treatment were compared by observing quantitative changes in blood flow and surface body temperature after a course of treatment. RESULTS: A total of 107 healthy subjects were randomly assigned to the qualified-practitioner group or the non-qualified operator group. Treatment by qualified practitioners significantly enhanced blood flow and surface body temperature in the subjects' designated neck area compared to that in treatment by non-qualified operators. This finding was further corroborated by a comparative experiment in which each healthy subject was treated by both a qualified practitioner and a non-qualified operator. These results indicate that only the qualified-practitioner treatment increased the subject's-blood flow and surface body temperature. Similarly, in a comparative study of qualified-practitioner treatment against non-qualified-operator treatment, subjects tending toward hypothermia showed increased blood flow and elevated body temperature with only the authentic Johrei treatment.


Assuntos
Hipotermia , Humanos , Hipotermia/terapia , Terapias Mente-Corpo
8.
Wilderness Environ Med ; 31(2): 230-234, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32331951

RESUMO

Both the temperature at which defibrillation can be effectively used and how often it should be repeated in severe accidental hypothermia have not been definitely established. Current recommendations are based mainly on expert opinion and suggest withholding defibrillation after 3 shocks when the core temperature is below 30°C (86°F). However, growing evidence supports the effectiveness of defibrillation in patients with a core temperature below 30°C (86°F). We present a case of successful defibrillation of a 54-y-old, severely hypothermic patient with a core temperature of 18.2°C (64.8°F). The shock was delivered automatically by an implanted cardioverter-defibrillator shortly after the implementation of extracorporeal rewarming. The patient survived and was discharged from the hospital neurologically intact. It might be reasonable to consider defibrillation attempts in severely hypothermic patients despite current guidelines to the contrary. Increasing coronary perfusion using extracorporeal circulation may result in a better response to defibrillation.


Assuntos
Cardioversão Elétrica , Hipotermia/terapia , Reaquecimento , Medicina Ambiental , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento , Medicina Selvagem
9.
Ann Glob Health ; 86(1): 10, 2020 02 03.
Artigo em Inglês | MEDLINE | ID: mdl-32064228

RESUMO

Background: Inadequate neonatal facilities in rural areas is one of the challenges affecting the management of preterm infants. In low income countries with limited resources, over 90% of preterm babies die within few days of life. Purpose: The purpose of this study was to describe the challenges encountered by midwives when providing care to preterm infants at resource limited health facilities in Limpopo Province, South Africa. Methods: Qualitative research approach, using exploratory and descriptive design was used. Non-probability purposive sampling was used to select twenty three midwives who had an experience of two or more years in maternity. Data was collected using unstructured individual interviews, which were voice recorded and transcribed and data analysed qualitatively through the open-coding method. Findings: Revealed one theme, preterm condition and expected care; with sub-themes namely; perceived causes of preterm complications and deaths, preterm babies experience several difficulties which need specialised care, the need for constant individualised care and monitoring of preterm infants by midwives, functional relevant equipment needed for care of preterm infants, a need for constant training for midwives regarding care of preterm infants, and importance for a proper structure to house preterm infants which will lead to quality care provision. Conclusion: Preterm babies need simple essential care such as warmth, feeding support, safe oxygen use and prevention of infection. Lack of adequate resources and limited skills from midwives could contribute to morbidity and mortality. Health facility managers need to create opportunities for basic and advanced preterm care to equip the skills of midwives by sending them to special trainings such as Limpopo Initiative Neonatal Care (LINC), Helping Baby Breath (HHB) and Neonatal Intensive Care Unit (NICU). Operational managers should be involved in the identification, procurement and supply of required equipment. Continuous health education should be provided on the mothers about kangaroo mother care (KMC) and measures to prevent infections in the neonatal unit.


Assuntos
Recursos em Saúde/provisão & distribuição , Controle de Infecções , Terapia Intensiva Neonatal , Tocologia , Mortalidade Perinatal , Educação Continuada em Enfermagem , Equipamentos e Provisões/provisão & distribuição , Feminino , Humanos , Hipotermia/terapia , Incubadoras para Lactentes/provisão & distribuição , Recém-Nascido , Recém-Nascido Prematuro , Capacitação em Serviço , Masculino , Oxigenoterapia , Pesquisa Qualitativa , Síndrome do Desconforto Respiratório do Recém-Nascido/terapia , África do Sul , Ventiladores Mecânicos/provisão & distribuição
10.
Pediatr Emerg Care ; 36(6): e346-e348, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30829844

RESUMO

Epinephrine plays a controversial role in accidental hypothermia (<30°C). We report its use in the advanced life support of a 13-month-old white girl with pulseless electrical activity and 25°C core body temperature after 32 minutes of submersion in a fast-running Swiss mountain stream at 8°C. Two doses of epinephrine (10 µg/kg) were given in the field, followed by 12 doses (10 µg/kg) and an infusion of 0.1 µg/kg per minute during rewarming. Spontaneous circulation returned at 29.5°C after 2.5 hours of cardiopulmonary resuscitation. Neurologic long-term outcome was excellent. We conclude that in the presence of nonshockable rhythm the benefits of epinephrine may outweigh the risks of side effects when used in pediatric advanced life support for accidental hypothermia.


Assuntos
Epinefrina/uso terapêutico , Hipotermia/terapia , Afogamento Iminente/terapia , Reaquecimento , Temperatura Corporal , Reanimação Cardiopulmonar , Serviços Médicos de Emergência , Feminino , Humanos , Imersão , Lactente
11.
High Alt Med Biol ; 20(1): 56-60, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30615485

RESUMO

INTRODUCTION: Hypothermia and frostbite occur when there is a significant decrease in central and peripheral body temperature in individuals exposed to cold windy conditions, often at high altitude or in a mountain environment. Portable hyperbaric chambers increase the barometric pressure and thereby the partial pressure of oxygen inside the chamber, and their use is a well-known treatment for altitude illness. This study aims to show that a portable hyperbaric chamber could also be used to treat hypothermia and frostbite in the field, when rescue or descent is impossible or delayed. METHODS: During a European research program (SOS-MAM, Flow Pulse study) measurements were taken from 27 healthy nonacclimatized voluntary subjects (21 men, 6 women, mean age 41 ± 17) at an altitude of 3800 m (Chamonix Mountain Lab, Aiguille du Midi, France) right before and immediately after spending 1 hour in a portable hyperbaric chamber at 300 mbar. We measured digital cutaneous temperature (Tcut), digital cutaneous blood flow (Fcut), digital tissue oxygenation (TcPO2), blood oxygen saturation (SpO2), heart rate, and core temperature. Air temperature inside the chamber (Tchamb) was measured throughout the whole session. RESULTS: We observed significant increases in Tchamb: 9.3°C compared with the outside temperature, Tcut: +7.5°C (±6.2°C 71%), Fcut: +58PU (±89) (+379%), TcPO2: +18 mmHg (±11.9) (304%), and SpO2: 13%. CONCLUSION: This study shows that a portable hyperbaric chamber can be used to treat frostbite and/or hypothermia in the field at altitude when descent or rescue is impossible or even simply delayed.


Assuntos
Altitude , Pressão Atmosférica , Dedos/irrigação sanguínea , Oxigenoterapia Hiperbárica/métodos , Microcirculação/fisiologia , Adulto , Temperatura Corporal , Feminino , Congelamento das Extremidades/etiologia , Congelamento das Extremidades/fisiopatologia , Congelamento das Extremidades/terapia , Voluntários Saudáveis , Frequência Cardíaca , Humanos , Hipotermia/etiologia , Hipotermia/fisiopatologia , Hipotermia/terapia , Masculino , Pessoa de Meia-Idade , Montanhismo/fisiologia , Oximetria , Oxigênio/sangue , Pressão Parcial , Temperatura Cutânea
12.
Rev. bras. anestesiol ; 69(1): 13-19, Jan.-Feb. 2019. tab, graf
Artigo em Inglês | LILACS | ID: biblio-977430

RESUMO

Abstract Background and objectives: Hypothermia occurs in about 60% of patients under anesthesia and is generally not managed properly during short lasting surgical procedures. Hypothermia is associated with adverse clinical outcomes. The current study is designed to assess the effects of crystalloid warming on maternal and fetal outcomes in patients undergoing elective cesarean section with spinal anesthesia. Methods: In this prospective randomized controlled trial, sixty parturients scheduled for elective cesarean section with spinal anesthesia were randomly allocated to receive crystalloid at room temperature or warmed at 37 °C. Spinal anesthesia was performed at L3-L4 interspace with 10 mg of hyperbaric bupivacaine without adding opioids. Core temperature, shivering, and hemodynamic parameters were measured every minute until 10th minute and 5-min intervals until the end of operation. The primary outcome was maternal core temperature at the end of cesarean section. Results: There was no difference for baseline tympanic temperature measurements but the difference was significant at the end of the operation (p = 0.004). Core temperature was 36.8 ± 0.5 °C at baseline and decreased to 36.3 ± 0.5 °C for isothermic warmed crystalloid group and baseline tympanic core temperature was 36.9 ± 0.4 °C and decreased to 35.8 ± 0.7 °C for room temperature group at the end of the operation. Shivering was observed in 43.3% in the control group. Hemodynamic parameter changes and demographic data were not significant between groups. Conclusions: Isothermic warming crystalloid prevents the decrease in core temperature during cesarean section with spinal anesthesia in full-term parturients. Fetal Apgar scores at first and fifth minute are higher with isothermic warming.


Resumo Justificativa e objetivos: A hipotermia ocorre em cerca de 60% dos pacientes sob anestesia e geralmente não é tratada adequadamente durante procedimentos cirúrgicos de curta duração. A hipotermia está associada a desfechos clínicos adversos. O presente estudo teve como objetivo avaliar os efeitos do aquecimento de cristaloides nas condições maternas e fetais em pacientes submetidas à cesariana eletiva com raquianestesia. Métodos: Neste estudo prospectivo, randômico e controlado, 60 parturientes agendadas para cesárea eletiva com raquianestesia foram distribuídas aleatoriamente para receber cristaloides à temperatura ambiente ou aquecidos a 37 °C. A raquianestesia foi realizada no interespaço L3-L4 com 10 mg de bupivacaína hiperbárica sem adição de opioides. Temperatura central, tremores e parâmetros hemodinâmicos foram medidos a cada minuto até o décimo minuto e em intervalos de 5 min até o fim da operação. O desfecho primário foi a temperatura central materna ao final da cesárea. Resultados: Não houve diferença nas mensurações basais da temperatura timpânica, mas a diferença foi significativa no fim da operação (p = 0,004). A temperatura central foi de 36,8 ± 0,5 °C na fase basal e diminuiu para 36,3 ± 0,5 °C no grupo com aquecimento isotérmico de cristaloides e a temperatura basal timpânica foi de 36,9 ± 0,4 °C e diminuiu para 35,8 ± 0,7 °C no grupo sem aquecimento das soluções no fim da operação. Tremores foram observados em 43,3% no grupo controle. Alterações nos parâmetros hemodinâmicos e dados demográficos não foram significantes entre os grupos. Conclusões: O aquecimento isotérmico de cristaloides previne a redução da temperatura central durante a cesariana com raquianestesia em parturientes a termo. Os escores de Apgar para os fetos no primeiro e quinto minutos são maiores com o aquecimento isotérmico.


Assuntos
Humanos , Feminino , Gravidez , Adolescente , Adulto , Adulto Jovem , Temperatura Corporal/efeitos dos fármacos , Cesárea , Método Duplo-Cego , Feto/efeitos dos fármacos , Soluções Cristaloides/uso terapêutico , Hipotermia/terapia , Anestesia Obstétrica/efeitos adversos , Raquianestesia/efeitos adversos , Estudos Prospectivos , Soluções Cristaloides/farmacologia , Hipertermia Induzida/métodos , Pessoa de Meia-Idade
13.
Braz J Anesthesiol ; 69(1): 13-19, 2019.
Artigo em Português | MEDLINE | ID: mdl-30448094

RESUMO

BACKGROUND AND OBJECTIVES: Hypothermia occurs in about 60% of patients under anesthesia and is generally not managed properly during short lasting surgical procedures. Hypothermia is associated with adverse clinical outcomes. The current study is designed to assess the effects of crystalloid warming on maternal and fetal outcomes in patients undergoing elective cesarean section with spinal anesthesia. METHODS: In this prospective randomized controlled trial, sixty parturients scheduled for elective cesarean section with spinal anesthesia were randomly allocated to receive crystalloid at room temperature or warmed at 37°C. Spinal anesthesia was performed at L3-L4 interspace with 10mg of hyperbaric bupivacaine without adding opioids. Core temperature, shivering, and hemodynamic parameters were measured every minute until 10th minute and 5-min intervals until the end of operation. The primary outcome was maternal core temperature at the end of cesarean section. RESULTS: There was no difference for baseline tympanic temperature measurements but the difference was significant at the end of the operation (p=0.004). Core temperature was 36.8±0.5°C at baseline and decreased to 36.3±0.5°C for isothermic warmed crystalloid group and baseline tympanic core temperature was 36.9±0.4°C and decreased to 35.8±0.7°C for room temperature group at the end of the operation. Shivering was observed in 43.3% in the control group. Hemodynamic parameter changes and demographic data were not significant between groups. CONCLUSIONS: Isothermic warming crystalloid prevents the decrease in core temperature during cesarean section with spinal anesthesia in full-term parturients. Fetal Apgar scores at first and fifth minute are higher with isothermic warming.


Assuntos
Anestesia Obstétrica , Raquianestesia , Temperatura Corporal/efeitos dos fármacos , Cesárea , Soluções Cristaloides/uso terapêutico , Feto/efeitos dos fármacos , Hipertermia Induzida , Hipotermia/terapia , Adolescente , Adulto , Anestesia Obstétrica/efeitos adversos , Raquianestesia/efeitos adversos , Soluções Cristaloides/farmacologia , Método Duplo-Cego , Feminino , Humanos , Hipertermia Induzida/métodos , Hipotermia/etiologia , Pessoa de Meia-Idade , Gravidez , Estudos Prospectivos , Adulto Jovem
14.
Medicine (Baltimore) ; 97(45): e13119, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30407328

RESUMO

BACKGROUND: Perioperative inadvertent hypothermia in elderly urology patients undergoing transurethral resection of the prostate (TURP) is a well-known serious complication, as it increases the risk of myocardial ischemia, blood loss, and surgical wound infection. We conducted this prospective randomized controlled trial to evaluate the combined effect of a forced-air warming system and electric blanket in elderly TURP patients. METHODS: Between January 2015 and October 2017, we recruited 443 elderly male patients undergoing elective TURP with subarachnoid blockade (SAB). These were randomly divided into 3 groups: group E (intraoperative warming using electric blankets set to 38°C; n = 128); group F (intraoperative warming using a forced-air warmer set to 38°C; n = 155) and group FE (intraoperative warming using a forced-air warmer plus electric blankets, both set to 38°C; n = 160). The primary outcome was shivering and their grades. Hemodynamic changes, esophageal temperature, recovery time, incidences of adverse effects, and patient and surgeon satisfaction were also recorded. RESULTS: Baseline characteristics showed no significant differences when compared across the 3 groups (P >.05). Compared with groups E and F, both HR and mean arterial pressure (MAP) in group FE were significantly decreased from T6 to T10 (P <.05). Compared with groups E and F, esophageal temperature in group FE increased significantly from T5 to T10 (P <.05). Compared with group E, esophageal temperature in group F was significantly increased from T5 to T10 (P <.05). Compared with groups F and FE, post-anesthesia care unit (PACU) recovery time was longer in group E, while compared with group F, PACU recovery time was shorter in group FE (P <.05). Compared to patients in groups E and F, those in group FE had a significantly lower incidence of arrhythmia and shivering (P <.05). The number of patients with shivering grades 0 to 3 was higher in group E than in other groups, while the number of patients with shivering grade 2 was significantly higher in group F than in group FE (P <.05). Patient and surgeon satisfaction scores were higher in group FE than in groups E and F (P <.05). CONCLUSIONS: Use of a forced-air warming system combined with an electric blanket was an effective method with which to retain warmth among elderly TURP patients.


Assuntos
Hipotermia/terapia , Complicações Intraoperatórias/etiologia , Reaquecimento/métodos , Ressecção Transuretral da Próstata/métodos , Idoso , Raquianestesia/efeitos adversos , Temperatura Corporal , Terapia Combinada/métodos , Hemodinâmica , Humanos , Hipotermia/etiologia , Complicações Intraoperatórias/terapia , Masculino , Pessoa de Meia-Idade , Satisfação do Paciente/estatística & dados numéricos , Estudos Prospectivos , Próstata/cirurgia , Reaquecimento/efeitos adversos , Estremecimento , Ressecção Transuretral da Próstata/efeitos adversos
16.
Emerg Med J ; 35(9): 564-570, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29880720

RESUMO

OBJECTIVES: Warming intravenous fluids is essential to prevent hypothermia in patients with trauma, especially when large volumes are administered. Prehospital and transport settings require fluid warmers to be small, energy efficient and independent of external power supply. We compared the warming properties and resistance to flow of currently available battery-operated fluid warmers. METHODS: Fluid warming was evaluated at 50, 100 and 200 mL/min at a constant input temperature of 20°C and 10°C using a cardiopulmonary bypass roller pump and cooler. Output temperature was continuously recorded. RESULTS: Performance of fluid warmers varied with flows and input temperatures. At an input temperature of 20°C and flow of 50 mL/min, the Buddy Lite, enFlow, Thermal Angel and Warrior warmed 3.4, 2.4, 1 and 3.6 L to over 35°C, respectively. However, at an input temperature of 10°C and flow of 200 mL/min, the Buddy Lite failed to warm, the enFlow warmed 3.3 L to 25.7°C, the Thermal Angel warmed 1.5 L to 20.9°C and the Warrior warmed 3.4 L to 34.4°C (p<0.0001). CONCLUSION: We found significant differences between the fluid warmers: the use of the Buddy Lite should be limited to moderate input temperature and low flow rates. The use of the Thermal Angel is limited to low volumes due to battery capacity and low output temperature at extreme conditions. The Warrior provides the best warming performance at high infusion rates, as well as low input temperatures, and was able to warm the largest volumes in these conditions.


Assuntos
Desenho de Equipamento/normas , Hidratação/instrumentação , Calefação/instrumentação , Desenho de Equipamento/métodos , Hidratação/métodos , Hidratação/normas , Calefação/métodos , Calefação/normas , Humanos , Hipotermia/prevenção & controle , Hipotermia/terapia , Estudos Prospectivos , Estatísticas não Paramétricas , Avaliação da Tecnologia Biomédica/métodos
18.
Biomed Instrum Technol ; 50(5): 336-48, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27632039

RESUMO

A battery-operated active cooling/heating device was developed to maintain thermoregulation of trauma victims in austere environments while awaiting evacuation to a hospital for further treatment. The use of a thermal manikin was adopted for this study in order to simulate load testing and evaluate the performance of this novel portable active cooling/heating device for both continuous (external power source) and battery power. The performance of the portable body temperature conditioner (PBTC) was evaluated through cooling/heating fraction tests to analyze the heat transfer between a thermal manikin and circulating water blanket to show consistent performance while operating under battery power. For the cooling/heating fraction tests, the ambient temperature was set to 15°C ± 1°C (heating) and 30°C ± 1°C (cooling). The PBTC water temperature was set to 37°C for the heating mode tests and 15°C for the cooling mode tests. The results showed consistent performance of the PBTC in terms of cooling/heating capacity while operating under both continuous and battery power. The PBTC functioned as intended and shows promise as a portable warming/cooling device for operation in the field.


Assuntos
Análise de Falha de Equipamento/instrumentação , Calefação/instrumentação , Hipertermia Induzida/instrumentação , Hipotermia/terapia , Manequins , Desenho de Equipamento , Humanos , Hipotermia/diagnóstico , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Temperatura Cutânea
19.
Duodecim ; 132(7): 666-8, 2016.
Artigo em Finlandês | MEDLINE | ID: mdl-27188092

RESUMO

Cardiopulmonary bypass is the treatment of choice for a severely hypothermic patient with cardiac arrest. However, the treatment is not always available. We describe a successful three-and-a-half hour resuscitation of a hypothermic cardiac arrest patient with manual chest compressions followed by open cardiac massage and rewarming with thoracic lavage.


Assuntos
Parada Cardíaca/etiologia , Parada Cardíaca/terapia , Massagem Cardíaca , Hipotermia/complicações , Hipotermia/terapia , Reaquecimento/métodos , Irrigação Terapêutica/métodos , Humanos
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