Fistulograms
- Home
- / Dr. Virendra Chauhan
Fistulograms
Purpose
Assessment of Patency: Determines if the AV fistula or graft is open and functioning properly, allowing adequate blood flow for effective hemodialysis.
Identification of Stenosis or Blockages: Detects narrowing (stenosis), blockages, or other abnormalities within the AV access, which can impede blood flow and dialysis efficiency.
Guidance for Intervention: Provides guidance for potential interventions, such as angioplasty (balloon dilation) or stenting, to restore or improve blood flow through the AV access.
Procedure
Preparation: The patient may undergo blood tests and imaging studies to assess kidney function and evaluate the AV access before the procedure.
Anesthesia: Local anesthesia is typically used to numb the area around the AV access site.
Imaging Technique: A thin, flexible catheter is inserted into the AV fistula or graft through a small incision. Contrast dye is injected through the catheter to make the blood vessels visible on X-ray or fluoroscopy.
Imaging and Evaluation: X-ray or fluoroscopic images are captured in real-time as the contrast dye flows through the AV access. This allows the healthcare provider to visualize any narrowing, blockages, or abnormalities in the blood vessels.
Intervention (if needed): If a stenosis or blockage is identified during the fistulogram, the healthcare provider may perform angioplasty (using a balloon to widen the narrowed area) or place a stent (a small mesh tube) to keep the blood vessel open.
Aftercare
Monitoring: Patients are monitored post-procedure for any signs of complications, such as bleeding or changes in AV access function.
Resumption of Dialysis: Dialysis treatment may resume as scheduled following the procedure, depending on the findings and any interventions performed.
Benefits
Improved Dialysis Efficiency: Ensures that the AV fistula or graft remains open and functional, facilitating effective hemodialysis treatments.
Early Detection of Issues: Allows for early detection and intervention of stenosis or blockages before they significantly affect dialysis adequacy.
Fistulograms are valuable diagnostic tools in nephrology, providing essential information to maintain and optimize the function of AV fistulas and grafts for hemodialysis in patients with CKD.