Randomized clinical trial to test the assertiveness on the peripheral vein puncture attempt by comparing two methods: peripheral venipuncture catheterization using the conventional technique (vein visualization and palpation) versus ultrasound-guided venous puncture. Patients with indication of peripheral venous puncture, admitted to the clinical inpatient units on the hospital where the study will be conducted (Hospital de Clinicas de Porto Alegre - HCPA) will be enrolled in this single-center trial and will be randomized to conventional peripheral venipuncture performed by a registered nurse; or ultrasound-guided peripheral venipuncture performed by a registered nurse with expertise in vascular access.
Study Protocol: When there is a need for peripheral venous access for the inpatient, the medical or nursing care team will contact the researchers, informing the personal data of the possible candidate to participate in the study. By fulfilling the eligibility criteria, the patient will be invited and informed about the study proposal; and, if he agrees to participate, he will sign the consent form. The type of procedure to be performed will be randomized through a draw. The procedure options are: Intervention: peripheral venipuncture guided by ultrasound by a registered nurse with expertise in vascular access, or Control: conventional peripheral venipuncture by an inpatient care registered nurse. Individuals who do not agree to participate in the study will have their data stored on a patient exclusion checklist. In both groups, intervention and control, up to two attempts will be made by the same professional and, if there is no success on the procedure, another professional will be designated for two more attempts. Ultrasound Site Rite 8 or Ultrasound Site Rite 5, which are portable ultrasound devices that include 2D ultrasound imaging in real time, will be used on the Intervention Group (1) procedure. The peripheral venipuncture procedure for both groups will be performed according to the standard operating procedures recommended by the institution where the study will be conducted (HCPA). The catheters to be used will be the peripheral venous catheters made available by the institution. If there is a failure of puncture in the Control Group (2), the study participant will follow the institution's routine to adapt an appropriate vascular access, which is the activation of a nurse specialist in vascular access, who can perform peripheral venipuncture guided by ultrasound. In the event of a new insertion failure, the care team (doctor and nurse) discusses the case to define a new approach according to the infusional therapy, considering the protocol for the indication of venous vascular accesses at the institution. Thereafter, the patient can proceed for oral treatment, insertion of a peripherally inserted central catheter, insertion of a short-term central venous catheter, hypodermoclysis, long-term central venous catheter (totally or semi-implanted), according to the decision of the assistant team. In the case of failure of the puncture in the Intervention Group (1), the study participant will follow the same routine of the institution, as explained above, for the adequacy of an adequate vascular access. However, in this case, the nurse specialist in vascular access will not be contacted, as the intervention procedure already uses ultrasound. All participants who successfully insert a peripheral venous catheter in both groups will be monitored for the occurrence of any event related to the procedure from the time of insertion of the catheter until the loss of access for any reason, removal of the device at the end of therapy, discharge, death or eight days of follow-up, whichever comes first. Peripheral venous access that remains for more than eight days will be counted as event-free, access survival. Study participants with failed insertion will have the outcome computed in the database and will be followed up for another 48 hours to assess any complications resulting from the puncture attempt.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
166
Ultrasound-guided peripheral venipuncture performed by a proficient vascular access registered nurse. The procedure will be performed according to the standard operational protocol for ultrasound guided peripheral venipuncture instituted at the hospital where the study will be conducted. Site Rite 8 or Site Rite 5 ultrasound machines (Bard Access Systems, Inc., USA) will be used on the procedures.
Conventional peripheral venipuncture performed by a registered nurse at the clinical inpatient unit. The procedure will be performed according to the standard operational protocol for peripheral venipuncture instituted in the hospital where the study will be conducted.
Universidade Federal do Rio Grande do Sul - Post Graduated Program
Porto Alegre, Rio Grande do Sul, Brazil
Number of venipuncture attempts
Success in the first attempt of venipuncture will be defined by the presence of blood reflux and infusion of 2 mL of saline without complaint of pain or signs of infiltration around the vessel. The number of times the vascular device reaches the skin and subcutaneous tissue with or without rupture of the vessel will be computed.
Time frame: Immediately after the procedure.
Time to obtain peripheral venous access
The time to obtain peripheral venous access will be measured in minutes. The computation of the total time of the procedure will start from the entry of the nurse into the patient's room and it will end when this professional leaves the room. In case of failure in venipuncture, the total time of the procedure will be considered as the sum of the time used in the procedure (without assertion) and the period necessary to obtain a functional venous access.
Time frame: During the procedure
Classification of peripheral venous system conditions
Predictors of difficult peripheral intravenous access will be recorded, considering demographic data (gender, age, weight, skin color, etc.) social behavior (active smoking, intravenous drug abuse and alcohol abuse), history of illnesses (heart and pulmonary diseases, vascular diseases, history of chemotherapy treatment, hematological status, use of drugs that interfere with cutaneous and vascular integrity, hypovolemia, hemodialysis, prolonged infusion therapies, skin changes, presence of scars and tattoos, dehydration, etc.) and history of difficult venous access.
Time frame: Right before the procedure
Peripheral venous catheters characteristics
Describe the technical specificities of the intravenous catheters used in the procedures, in terms of caliber and length.
Time frame: Before the procedure.
Vascular and device complications
Complications that might occur during the permanence of the vascular access device (phlebitis, obstruction, leakage, infiltration, etc), measured through clinical assessment. In the case of the development of phlebitis, it will be evaluated through the application of the Visual Infusion Phlebitis Scale (from the Infusion Nurses Society), which classifies the lesion up to five degrees, according to the progression and severity of the signs and symptoms.
Time frame: Up to 8 days.
Venipuncture durability without complications
The time of permanence of the venous access without complications will be measured in days, counting from the day of insertion until the removal of the catheter for any reason (complications, end of therapy, discharge, death or eight days of follow-up). Venous accesses will follow the insertion site exchange guideline, that is, it will be exchange only when clinically indicated, in case of identified complication.
Time frame: Up to 8 days.
Infusional therapy characteristics and venipuncture durability
The characteristics of the prescribed intravenous therapy and the durability of peripheral venous access will be assessed daily using specific forms, developed by the authors. The following data will be collected regarding the prescribed intravenous therapy: medication in use, dose, frequency, and estimated duration of therapy.
Time frame: Up to 8 days.
Costs related to the venipuncture techniques used
Through specific forms, developed by the authors, the following will be computed: the number of catheters used, the complementary materials used and their quantities, the type of dressing for fixing the catheter and the time spent to obtain peripheral venous access.
Time frame: Up to 8 days.
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.