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Hemostatic Effect of Various Colloid Solutions

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified August 2007 by Samsung Medical Center.
Recruitment status was:  Recruiting
Information provided by:
Samsung Medical Center Identifier:
First received: August 16, 2007
Last updated: NA
Last verified: August 2007
History: No changes posted

Background: Individuals with type O blood have reduced factor VIII and von Willebrand factor levels compared to the non-O counterpart. Infusion of hydroxyethyl starch (HES) impairs coagulation and, in O blood type, apparent coagulopathy can develop after HES infusion. A newly market-released balanced HES (670/0.75) has physiologic pH and balanced electrolytes including calcium, which are beneficial to coagulation. Studies comparing balanced HES (670/0.75) with saline-based HES (130/0.4), previously known the least coagulopathic are rare. Therefore, we try to reveal the difference of coagulation, pH/electrolyte balance, and bleeding amount between the non-O and O blood types after infusion of these two newest HES.

Methods: Each 20 of non-O and type O ASA 1 or 2 patients scheduled for spinal surgery involving 2 or 3 spinal levels were enrolled. 20 ml/kg of saline-based HES (130/0.4) or balanced HES (670/0.75) was administered during operation. Blood loss, coagulation and metabolic profiles were checked at pre-infusion (T0), 5 min after infusion (T1), 4 hrs after infusion (T2) and 24 hrs after infusion (T4).

Condition Intervention
Laminectomy Drug: administration of hydroxyehtyl starch

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double-Blind
Primary Purpose: Prevention
Official Title: Hemostatic Effect of Various Colloid Solutions According to Blood Types

Further study details as provided by Samsung Medical Center:

Primary Outcome Measures:
  • Blood loss, coagulation and metabolic profiles [ Time Frame: pre-infusion, 5 min after infusion, 4 hrs after infusion ]

Study Start Date: July 2007
Intervention Details:
    Drug: administration of hydroxyehtyl starch
    colloid is administered during operation according to blood loss.

Ages Eligible for Study:   18 Years to 75 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients of ASA 1 or 2, and scheduled for posterior laminectomy and internal fixation at two or three spinal levels.

Exclusion Criteria:

  • the presence of cardiovascular diseases, cerebral vascular disease, hepatic, pulmonary, or renal disease, hemoglobin < 12 g/dl, platelet count < 150,000 /ml, coagulopathy, taking medication likely to alter coagulation less than 2 weeks before the study, or an allergic reaction to HES
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00518544

Contact: Hyun Joo Ahn, MD., PhD. 82-2-3410-0784

Korea, Republic of
Samsung medical center Recruiting
Seoul, Korea, Republic of, 135-710
Contact: Hyun Joo Ahn, MD.,PhD.    82-2-3410-0784   
Sponsors and Collaborators
Samsung Medical Center
Principal Investigator: Hyun Joo Ahn, MD., PhD. Samsung Medical Center
  More Information Identifier: NCT00518544     History of Changes
Other Study ID Numbers: CRS107-17-1
Study First Received: August 16, 2007
Last Updated: August 16, 2007

Keywords provided by Samsung Medical Center:
hydroxyethyl starch, blood type, coagulation

Additional relevant MeSH terms:
Coagulants processed this record on July 21, 2017