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Study aim
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Comparative study of three methods of continuous local pressure and applying cold compress and compression bandage on the incidence and severity of hematoma and ecchymosis
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Design
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A clinical trial with one control group and two intervention groups, parallel and randomized, without blinding, phase 2-3, on 60 volunteers. A simple randomization method is used for randomization.
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Settings and conduct
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This study, which will be conducted at Namazi Hospital in Shiraz, is not blinded. After the initial evaluation of the inclusion criteria and performing the modified Allen test to ensure adequate blood supply to the distal part of the body, the volunteers will be randomly divided into three groups and receive interventions related to their group. Then, 48 hours after the intervention, the consequences of the occurrence and severity of hematoma and ecchymosis will be investigated and compared.
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Participants/Inclusion and exclusion criteria
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Inclusion criteria: Informed consent; Allen test; Systolic blood pressure below 180
Exclusion criteria: The presence of diseases of the vessels of the upper limbs; infection, swelling, or ulceration in the radial area; Presence of shunt or graft or fistula in upper limb areas
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Intervention groups
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In intervention group 1: After applying the routine treatment similar to the control group, a cold compress is used for 3 minutes. In intervention group 2: after applying the same routine treatment as the control group, it is closed using 3 relatively vertical elastic bandages. Control group: Immediately after the needle exit, local pressure is applied with two fingers for 5 minutes using a 4 x 4 piece of gauze, if the bleeding continues, pressure will be applied until the bleeding stops completely.
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Main outcome variables
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incidence and severity of hematoma, and incidence and severity of ecchymosis