Core body temperature and the thermoneutral zone: a longitudinal study of normal human pregnancy

Hartgill, Tom; Bergersen, Tone Kristin; Pirhonen, Jouko

doi:10.1111/j.1748-1716.2010.02228.x

Cited by 46 publications

(42 citation statements)

References 33 publications

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“…Than the results of laboratory tests in acute condition should be compared with the previous obtained during earlier phases of pregnancy. Furthermore, fever in pregnancy may be blunted by decreased maternal core temperature, increased levels of placenta‐derived anti‐inflammatory factors like interleukin‐1 receptor antagonist and altered brain sensitivity to the pyrogenic action of prostaglandins . Also, whenever toxic megacolon is suspected, based on maternal clinical conditions, imaging of colonic dilatation should be expeditiously obtained, either by MRI or x‐ray. 2‐.…”

Section: Discussion and Literature Reviewmentioning

confidence: 99%

New‐onset ulcerative colitis in pregnancy associated to toxic megacolon and sudden fetal decompensation: Case report and literature review

Brunelli

Perrone

et al. 2019

J of Obstet and Gynaecol

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Ulcerative colitis (UC) is a chronic inflammatory disease rarely arising during gestation. Because the available information is based on case reports or small retrospective studies, diagnosis may be difficult and treatment is still controversial. A case of toxic megacolon developing in late pregnancy associated to a sudden fetal decompensation is described. Diagnostic and clinical topics of acute UC onset in pregnancy are debated.A primipara, 34 years old, 33/0 weeks of gestation, was admitted with a diagnosis of preterm labor, associated to acute bloody diarrhea (up to 10 daily motions) and cramping abdominal pain. A diagnosis of new‐onset early‐stage UC was made by sigmoidoscopy. An intensive care regimen including hydrocortisone, antibiotics and parenteral nutrition was immediately started. Magnetic resonance imaging of maternal abdomen, fostered by the worsening patient conditions, evidenced dilatation of the entire colon and a severely hampered of fetal muscular tone.Toxic megacolon complicated by superimposed Clostridium difficile infection was associated to a sudden fetal decompensation diagnosed by chance during maternal abdominal magnetic resonance imaging. An emergency cesarean section was mandatory. According to a senior surgeon's decision, total colectomy was not immediately performed following cesarean section with reference to the absence of colonic perforation. We obtained a good short‐term maternal outcome and an uncomplicated neonatal course. Counseling of those patients must be focused on timely and multidisciplinary intervention in order to improve the course of maternal disease and to prevent fetal distress.

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Section: Discussion and Literature Reviewmentioning

confidence: 99%

New‐onset ulcerative colitis in pregnancy associated to toxic megacolon and sudden fetal decompensation: Case report and literature review

Brunelli

Perrone

et al. 2019

J of Obstet and Gynaecol

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“…Whether subjects were in their thermoneutral zone was confirmed by characteristic skin perfusion variations at the ventral side of the hand [two to three vasoconstrictions per minute (Thoresen & Walloe 1980, Bergersen 1993, Hartgill et al 2011]. The measurements lasted 3.5 h. The protocol started with a 30-min thermoneutral baseline period (air temperature = 30.1 AE 0.1°C).…”

Section: Subjectsmentioning

confidence: 99%

“…Upon mild cold exposure vasoconstriction is a thermoregulatory mechanism to decrease heat loss (Savage & Brengelmann 1996, Hartgill et al 2011. Upon mild cold exposure vasoconstriction is a thermoregulatory mechanism to decrease heat loss (Savage & Brengelmann 1996, Hartgill et al 2011.…”

mentioning

confidence: 99%

Increased systolic blood pressure after mild cold and rewarming: relation to cold-induced thermogenesis and age

Kingma¹,

Frijns²,

Saris³

et al. 2011

Acta Physiologica

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“…Severe maternal hyperthermia (over-heating) due to illness appears to increase the incidence of foetal malformation 35) . In a study by Hartgill et al, 2011, it was found that human temperature regulation is altered in pregnancy. Maternal core temperature was at its highest in the first trimester but fell during pregnancy with its lowest point 3 months post-delivery and persisted until 6 months after delivery in breast-feeding women.…”

Section: Individual Aspectsmentioning

confidence: 99%

“…Maternal core temperature was at its highest in the first trimester but fell during pregnancy with its lowest point 3 months post-delivery and persisted until 6 months after delivery in breast-feeding women. The causes of the delayed return to normal temperature can currently only be speculated on 60) . It also appears that women, especially older women, are more at risk, in both relative and absolute terms, of dying in a heat wave 44) .…”

Section: Individual Aspectsmentioning

confidence: 99%

Effects of Heat Stress on Working Populations when Facing Climate Change

et al. 2013

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It is accepted that the earth's climate is changing in an accelerating pace, with already documented implications for human health and the environment. This literature review provides an overview of existing research findings about the effects of heat stress on the working population in relation to climate change. In the light of climate change adaptation, the purpose of the literature review was to explore recent and previous research into the impacts of heat stress on humans in an occupational setting. Heat stress in the workplace has been researched extensively in the past however, in the contemporary context of climate change, information is lacking on its extent and implications. The main factors found to exacerbate heat stress in the current and future workplace are the urban 'heat island effect', physical work, individual differences, and the developing country context where technological fixes are often not applicable. There is also a lack of information on the effects on vulnerable groups such as elderly people and pregnant women. As increasing temperatures reduce work productivity, world economic productivity could be condensed, affecting developing countries in the tropical climate zone disproportionately. Future research is needed taking an interdisciplinary approach, including social, economic, environmental and technical aspects.

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Core body temperature and the thermoneutral zone: a longitudinal study of normal human pregnancy

Cited by 46 publications

References 33 publications

New‐onset ulcerative colitis in pregnancy associated to toxic megacolon and sudden fetal decompensation: Case report and literature review

New‐onset ulcerative colitis in pregnancy associated to toxic megacolon and sudden fetal decompensation: Case report and literature review

Increased systolic blood pressure after mild cold and rewarming: relation to cold-induced thermogenesis and age

Effects of Heat Stress on Working Populations when Facing Climate Change

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