PMID- 18279190 OWN - NLM STAT- MEDLINE DCOM- 20080701 LR - 20181201 IS - 1365-3148 (Electronic) IS - 0958-7578 (Linking) VI - 18 IP - 1 DP - 2008 Feb TI - A randomized, single-blind, increasing dose safety trial of an oxygen-carrying plasma expander (Hemospan) administered to orthopaedic surgery patients with spinal anaesthesia. PG - 28-39 LID - 10.1111/j.1365-3148.2007.00811.x [doi] AB - The objective of this study was to further explore the safety of Hemospan (Sangart Inc., San Diego, CA, USA), an oxygen-carrying plasma expander. The aim of this study was to determine if Hemospan is well tolerated in orthopaedic surgery patients with spinal anaesthesia in doses up to 1 L. Hemospan was previously found to be well tolerated in normal volunteers and orthopaedic surgery patients with spinal anaesthesia in doses up to 500 mL. Five cohorts of six orthopaedic surgery patients, American Society of Anesthesiologists (ASA) I and II, were studied. In each cohort, four patients received Hemospan in doses ranging from 200 to 1000 mL, and two received Ringer's lactate immediately prior to induction of spinal anaesthesia. There were no serious adverse events (SAEs). Iohexol clearance measured before and 24 h after dosing was unaffected. There were 14 adverse events (AEs) in the 10 control patients (1.4 per patient) and 30 in the 20 patients receiving Hemospan (1.5 per patient). One patient in the group receiving 200 mL Hemospan had elevated mean arterial pressure after dosing, but there were no elevations in any of the other patients. The peak plasma Hemospan concentration in the 1000 mL group was 1.3 g dL(-1), with a dose-dependent clearance (T(1/2)) ranging from 14.1 to 23.0 h. Plasma methaemoglobin levels were independent of dose, reaching a maximum at 40 h after dosing and never exceeded 0.125 g dL(-1). Troponin T was transiently elevated in two patients receiving Hemospan without symptoms or electrocardiographic abnormalities or elevation of myocardial creatinine kinase isoenzyme. Hemospan was well tolerated in this group of patients at doses up to 1000 mL. FAU - Olofsson, C AU - Olofsson C AD - Department of Anaesthesiology, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden. FAU - Nygards, E B AU - Nygards EB FAU - Ponzer, S AU - Ponzer S FAU - Fagrell, B AU - Fagrell B FAU - Przybelski, R AU - Przybelski R FAU - Keipert, P E AU - Keipert PE FAU - Winslow, N AU - Winslow N FAU - Winslow, R M AU - Winslow RM LA - eng PT - Journal Article PT - Randomized Controlled Trial PL - England TA - Transfus Med JT - Transfusion medicine (Oxford, England) JID - 9301182 RN - 0 (Contrast Media) RN - 0 (Isotonic Solutions) RN - 0 (Plasma Substitutes) RN - 0 (Ringer's Lactate) RN - 4419T9MX03 (Iohexol) SB - IM MH - Adult MH - Aged MH - *Anesthesia, Spinal MH - Blood Pressure/drug effects MH - Cohort Studies MH - Contrast Media/administration & dosage/pharmacokinetics MH - Dose-Response Relationship, Drug MH - Female MH - Humans MH - Iohexol/administration & dosage/pharmacokinetics MH - Isotonic Solutions/administration & dosage/adverse effects/pharmacokinetics MH - Male MH - Middle Aged MH - *Orthopedic Procedures MH - Plasma Substitutes/*administration & dosage/adverse effects/pharmacokinetics MH - Ringer's Lactate MH - Single-Blind Method MH - Time Factors EDAT- 2008/02/19 09:00 MHDA- 2008/07/02 09:00 CRDT- 2008/02/19 09:00 PHST- 2008/02/19 09:00 [pubmed] PHST- 2008/07/02 09:00 [medline] PHST- 2008/02/19 09:00 [entrez] AID - TME811 [pii] AID - 10.1111/j.1365-3148.2007.00811.x [doi] PST - ppublish SO - Transfus Med. 2008 Feb;18(1):28-39. doi: 10.1111/j.1365-3148.2007.00811.x.