https://www.kidney.org/sites/default/files/Fistula%20Bulletin.pdf

Arteriovenous fistula (AVF) catheterization, as a high-frequency and invasive medical procedure, cannot rely solely on the individual experience and skills of healthcare providers to ensure safety and effectiveness. Instead, it must be grounded in a robust framework of systematic quality management and industry standards. This framework encompasses standardized procedural protocols as well as strict control over medical devices used, such as puncture needles. This article will explore the quality systems and key industry standards that underpin AVF catheterization practices.

1. Standardization of Operational Procedures: From Experience to Standards

• 1. Development and Implementation of Standard Operating Procedures (SOPs)

• Healthcare institutions should establish comprehensive SOPs for AVF cannulation, covering patient assessment and verification, site selection and planning, sterile technique execution (including disinfection area, duration, and method), specific cannulation steps (needle angle, depth, and fixation techniques), post-cannulation evaluation (blood flow and pressure monitoring), and emergency response plans for complications. These SOPs should be based on the latest clinical practice guidelines (such as KDIGO and KDOQI recommendations) and adapted to the institution's specific context, with ongoing training ensuring all operators are proficient and consistently apply the procedures.

• 2. Competency Certification and Continuous Training

• Operators must undergo systematic training and pass competency assessments before performing independent AVF cannulations. Training should include theoretical instruction, simulation exercises, and supervised clinical practice. In particular, ultrasound-guided cannulation (UGP) skills should be treated as advanced or essential competencies requiring specialized training and certification. Regular refresher training and skill assessments should be conducted to maintain and enhance the overall team proficiency.

• 3. Quality Monitoring and Continuous Improvement

Key quality indicators should be established to monitor cannulation performance, such as first-attempt success rate, hematoma incidence, dialysis interruption rate due to procedure-related complications, and patient pain scores. Data should be collected and analyzed regularly (e.g., quarterly), followed by quality review meetings to conduct root cause analyses on underperforming areas and implement corrective actions, thereby establishing a continuous quality improvement cycle based on the Plan-Do-Check-Act (PDCA) model.

II. Medical Device Compliance Management: The Foundation of Safety and Effectiveness

As a Class III medical device, the production, distribution, and use of puncture needles are subject to strict regulation.

• 1. Quality Management System (QMS)

• As indicated in product documentation, compliant manufacturers must establish a quality management system in accordance with the ISO 13485 standard. This standard covers the entire lifecycle-from design and development, procurement, and production to inspection and after-sales service-ensuring that products consistently meet regulatory requirements and intended use. Additionally, ISO 9001 certification demonstrates an organization's capability in general quality management.

• 2. Product Performance and Safety Standards

• Needles must comply with specific product standards. For example, ISO 7864 "Single-use Sterile Subcutaneous Injection Needles" and ASTM F3014-14 define clear test methods and requirements for needle rigidity, connection strength, and particularly for penetration force and sharpness of the needle tip. Manufacturers must provide test reports verifying compliance.

• 3. Biocompatibility Assessment

• In accordance with the ISO 10993 series of standards, needles must undergo rigorous biological evaluation to demonstrate that their materials pose no risks such as cytotoxicity, sensitization, or irritation under clinical conditions. This is a prerequisite for medical device registration and market approval.

• 4. Medical Institution Device Management

• Hospitals should establish systems for the procurement, storage, distribution, and use of medical devices. They must ensure that purchased needles come from legally qualified suppliers and are accompanied by valid medical device registration certificates. Storage conditions must meet specified requirements, and prior to use, packaging integrity and expiration dates should be checked.

3. Integration of Patient Safety Culture

Ultimately, all systems and standards serve patient safety. Encourage proactive reporting of adverse events and near misses to foster a non-punitive safety culture. Involve patients and their families in safety checks, such as inviting patients to verify puncture sites. Incorporate patient satisfaction surveys into quality assessments.

Conclusion:

The quality and safety of AVF catheter placement rest on a structure supported by two pillars: standardized procedures and compliant medical devices. Standardized operating procedures (SOPs) and personnel training ensure control over the human factor, while a quality management system based on international standards such as ISO 13485, ISO 10993, and ISO 7864 ensures the reliability of medical devices. These two elements complement each other, jointly establishing a measurable, monitorable, and improvable defense system. Only by placing every puncture within this systematic framework can risks be minimized, truly achieving the ultimate goal of providing safe, efficient, and dignified vascular access treatment for hemodialysis patients.