Loss of Body Heat during Continuous Veno-Venous Hemodialysis (Cvvh-D) in Critically Ill Patients

2.50
Hdl Handle:
http://hdl.handle.net/10755/160415
Type:
Presentation
Title:
Loss of Body Heat during Continuous Veno-Venous Hemodialysis (Cvvh-D) in Critically Ill Patients
Abstract:
Loss of Body Heat during Continuous Veno-Venous Hemodialysis (Cvvh-D) in Critically Ill Patients
Conference Sponsor:Midwest Nursing Research Society
Conference Year:2003
Author:Jones, Susan
Contact Address:CON, 940 NE 13th St, 2B 2403, Oklahoma City, OK, 73104, USA
Unlike acute intermittent hemodialysis (AIH), which exposes the patient’s blood to warmed dialysate for short periods of time, CVVH-D continuously circulates blood past room-temperature dialysate. Loss of body heat poses a potential threat to critically ill patients by taxing cardiovascular reserves, initially raising metabolic rate, and stimulating shivering. Little research has been done concerning the problem of heat loss during CVVH-D. Even less is known about how patient characteristic and dialysis conditions influence body heat loss. Study purposes: to examine the following influences in patients undergoing CVVH-D: 1) effects of blood flow (BFR) and dialysate flow rates (DFR) on tympanic membrane temperatures (TMT), 2) body surface area (BSA) on the development of hypothermia. Design and Sample: This descriptive correlational study used a convenience sample of 11 adult critically ill patients from a large midwestern medical center. None of the sample received other extracorporeal therapy within 24 hours. Procedures: After informed consent, study variables were measured at baseline, 30 minutes, 2, 4, 8, and 12 hours after CVVHD initiation. Data Analyses: To determine associations between BSA and TMT, BSA and BT2, DFR and TMT, BFR and TMT, and BFR and PTDG, Kendall’s tau correlation procedures were performed at all time intervals. Mean blood temperature changes were examined for all BSAs at each time interval. Results: Ten of eleven (91%) patients became hypothermic during therapy; additionally 64% began to shiver. DFR had a greater impact on the development of hypothermia than did BFR. A BSA <2 m2 correlated with the development of hypothermia. Conclusions: Patients undergoing CVVH-D are likely to become hypothermic during therapy, especially those <2 m2 BSA and those with DFR > 1000ml/hr. This has implications beyond patient comfort and alterations in metabolic demands of patients who are cold, but also impacts the nutritional needs of individual patients. AN: MN030027
Repository Posting Date:
26-Oct-2011
Date of Publication:
17-Oct-2011
Sponsors:
Midwest Nursing Research Society

Full metadata record

DC FieldValue Language
dc.typePresentationen_GB
dc.titleLoss of Body Heat during Continuous Veno-Venous Hemodialysis (Cvvh-D) in Critically Ill Patientsen_GB
dc.identifier.urihttp://hdl.handle.net/10755/160415-
dc.description.abstract<table><tr><td colspan="2" class="item-title">Loss of Body Heat during Continuous Veno-Venous Hemodialysis (Cvvh-D) in Critically Ill Patients </td></tr><tr class="item-sponsor"><td class="label">Conference Sponsor:</td><td class="value">Midwest Nursing Research Society</td></tr><tr class="item-year"><td class="label">Conference Year:</td><td class="value">2003</td></tr><tr class="item-author"><td class="label">Author:</td><td class="value">Jones, Susan</td></tr><tr class="item-address"><td class="label">Contact Address:</td><td class="value">CON, 940 NE 13th St, 2B 2403, Oklahoma City, OK, 73104, USA</td></tr><tr><td colspan="2" class="item-abstract">Unlike acute intermittent hemodialysis (AIH), which exposes the patient&rsquo;s blood to warmed dialysate for short periods of time, CVVH-D continuously circulates blood past room-temperature dialysate. Loss of body heat poses a potential threat to critically ill patients by taxing cardiovascular reserves, initially raising metabolic rate, and stimulating shivering. Little research has been done concerning the problem of heat loss during CVVH-D. Even less is known about how patient characteristic and dialysis conditions influence body heat loss. Study purposes: to examine the following influences in patients undergoing CVVH-D: 1) effects of blood flow (BFR) and dialysate flow rates (DFR) on tympanic membrane temperatures (TMT), 2) body surface area (BSA) on the development of hypothermia. Design and Sample: This descriptive correlational study used a convenience sample of 11 adult critically ill patients from a large midwestern medical center. None of the sample received other extracorporeal therapy within 24 hours. Procedures: After informed consent, study variables were measured at baseline, 30 minutes, 2, 4, 8, and 12 hours after CVVHD initiation. Data Analyses: To determine associations between BSA and TMT, BSA and BT2, DFR and TMT, BFR and TMT, and BFR and PTDG, Kendall&rsquo;s tau correlation procedures were performed at all time intervals. Mean blood temperature changes were examined for all BSAs at each time interval. Results: Ten of eleven (91%) patients became hypothermic during therapy; additionally 64% began to shiver. DFR had a greater impact on the development of hypothermia than did BFR. A BSA &lt;2 m2 correlated with the development of hypothermia. Conclusions: Patients undergoing CVVH-D are likely to become hypothermic during therapy, especially those &lt;2 m2 BSA and those with DFR &gt; 1000ml/hr. This has implications beyond patient comfort and alterations in metabolic demands of patients who are cold, but also impacts the nutritional needs of individual patients. AN: MN030027 </td></tr></table>en_GB
dc.date.available2011-10-26T22:55:18Z-
dc.date.issued2011-10-17en_GB
dc.date.accessioned2011-10-26T22:55:18Z-
dc.description.sponsorshipMidwest Nursing Research Societyen_GB
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