On two separate occasions six trained subjects (peak oxygen consumption [VO2peak] 4.41/min) rode for 60 min at 70% of VO2peak and then to exhaustion at 90% of VO2peak to determine the effects of mild dehydration on high-intensity cycling performance time in the heat (32 degrees C, 60% relative humidity, wind speed 3 km/h). In one [...]
Fluid homeostasis requires adequate water intake, regulated by an intact thirst mechanism and appropriate free water excretion by the kidneys, mediated by appropriate secretion of arginine vasopressin (AVP, also known as antidiuretic hormone). AVP exerts its antidiuretic action by binding to the X chromosome-encoded V2 vasopressin receptor (V2R), a G protein-coupled receptor on the basolateral [...]
No abstract available.
Evidence of the effect of dehydration on physiological responses to hypoxia is limited. The purpose of this study was to determine the effect of hypohydration severity on physiological, renal hormonal and psychological responses to acute hypoxia. Eight males completed intermittent walking tests under normobaric hypoxic conditions (FI O(2) = 0.13) after completing four separate hypohydration [...]
Reductions in SV are the most striking component of "classic" CV drift as well as "dehydration induced" CV drift. Direct data for the widespread notion that increased skin blood flow causes SV to be reduced during "classic" CV drift is rather scarce. Reductions in SV due to dehydration and concomitant hyperthermia are clearly not due [...]
Acute bacterial parotitis (ABP) in elderly is clinically described with a sudden onset of painfull swelling over the cheek and angle of the mandible. The occur of ABP is a factor of very bad prognosis, often an indicator of approaching death. In this paper we discuss eight cases observed in our geriatric clinic. To reduce [...]
The incidence of cancer among older patients continues to rise. The use of combined modality therapy has improved survival in a variety of malignancies, including rectal, head and neck, and lung cancer; however, the addition of chemotherapy increases substantially the toxicities of treatment. Elderly patients have generally been excluded from prospective clinical trials and as [...]
The Japanese Society of Palliative Medicine has developed a clinical guideline to minimize the large variation in clinical practice of artificial hydration therapy for terminally ill cancer patients. The primary aim of this preliminary study was to explore the effects of a five-hour interactive workshop based on the guideline of nurses' knowledge, confidence, self-reported practice, [...]
INTRODUCTION: We wished to determine bioelectrical impedance (BIA) correlates before hydration or changes during hydration and determine if these changes were prognostically important. METHODS AND MATERIALS: Fifty eligible patients underwent BIA measurements 3 consecutive days. Laboratory studies (electrolytes, creatinine, and hemoglobin) on day 1; weights and vital signs were recorded. Kaplan-Meier survival estimates were made [...]
AIM AND OBJECTIVES: The following discussion builds upon a previous publication that reported on the perceptions and discourses of palliative care nurses and doctors in relation to nutrition and hydration at the end of life. The aim of this paper is to report the discourses of nurses and doctors in relation to the challenges they [...]