Internal Jugular Vein Access Without Ultrasound
While ultrasound guidance is now the standard of care and strongly recommended by multiple international guidelines, landmark-based internal jugular vein (IJV) cannulation remains a viable technique when ultrasound is unavailable in emergencies or in resource-limited settings. 1
Current Standard of Care Context
Ultrasound guidance should be used routinely for IJV catheterization unless in emergency situations or when the technology is unavailable. 1 Multiple guidelines from the Association of Anaesthetists of Great Britain and Ireland, international consensus statements, and systematic reviews demonstrate that ultrasound reduces complications by 71%, arterial puncture by 72%, and increases first-pass success by 57% compared to landmark techniques. 1, 2
However, landmark techniques remain relevant because:
- Ultrasound may be unavailable in true emergencies 1
- Resource-limited settings may lack ultrasound technology 1
- Understanding landmark anatomy remains foundational knowledge 1
Landmark-Based Technique for IJV Access
Patient Positioning
- Place patient in 15-30 degrees Trendelenburg position to distend neck veins and reduce air embolism risk 3
- Rotate head 30 degrees to the contralateral side - this is the optimal angle that maximizes the safe puncture window while minimizing IJV-carotid artery overlap 4
- Avoid excessive head rotation beyond 45 degrees, as this significantly increases the overlapping angle between the IJV and carotid artery, raising arterial puncture risk 4
Anatomical Landmarks - Central Approach
- Identify the triangle formed by the two heads of the sternocleidomastoid muscle and the clavicle 3
- The apex of this triangle is at the level of the cricoid cartilage 5
- Insert needle at the apex, lateral to the carotid artery pulsation 3
- Direct needle caudally toward the ipsilateral nipple at 30-45 degree angle to the skin 3
- Advance while maintaining gentle negative pressure on the syringe 3
Critical Safety Considerations
Carotid artery puncture is the most common complication, occurring in 2.3-33% of landmark-guided attempts depending on operator experience. 6, 3 To minimize this risk:
- Always palpate the carotid artery and insert lateral to the pulsation 3
- Recognize that the IJV is anterior to the carotid artery in 97% of cases, not truly lateral as traditionally taught 5
- The IJV position varies: on the right side it is more frequently anterolateral, while on the left it is more frequently anteromedial 5
- Limit attempts to 3-5 maximum before seeking alternative access or assistance 3
Expected Success Rates Without Ultrasound
Landmark technique in experienced hands achieves:
- 100% eventual success rate in standard patients 3
- 80-83% first-attempt success with experienced operators 6, 3
- Mean cannulation time of 6.89 ± 3.2 minutes 3
- 20% first-attempt success in less experienced operators 6
High-Risk Patients Requiring Special Caution
Landmark technique should be avoided or used with extreme caution in:
- Patients with coagulopathies (hepatic failure, anticoagulation, HELLP syndrome) 6
- Patients with no external landmarks (anasarca, obesity, short neck) 6
- Patients who cannot maintain horizontal position 6
- Patients with previous failed attempts 6
In these populations, ultrasound guidance achieved 100% first-attempt success with zero complications, compared to 20% first-attempt success and 33% carotid puncture rate with landmarks. 6
Site Selection Without Ultrasound
The right IJV is preferred over the left for landmark-based access because:
- More direct path to superior vena cava 1
- Lower risk of thoracic duct injury 1
- More predictable anatomy 5
Avoid subclavian vein in patients with advanced kidney disease - this causes central venous stenosis in a high proportion of patients, permanently precluding future arteriovenous fistula creation in the ipsilateral arm. 7
Avoid femoral vein unless contraindications exist to other sites due to significantly higher infection risk and thrombosis concerns. 1
Post-Procedure Verification
Radiologic confirmation of catheter tip position is mandatory with either:
- Intraoperative fluoroscopy, or
- Post-procedure chest X-ray 1
The desired catheter tip location is at the junction between the right atrium and superior vena cava. 1
Obtain chest X-ray if patient develops dyspnea or chest wall pain to rule out pneumothorax or hemothorax. 1
Training Considerations
In settings where ultrasound is widely available, it is no longer practical to train operators to full competency in landmark techniques alone. 1 However, understanding landmark anatomy remains useful for rare situations when ultrasound cannot be used. 1
Simulation-based training on phantoms or manikins should be routinely available to improve novice technique before attempting procedures on patients. 1
Common Pitfalls to Avoid
- Excessive head rotation (>45 degrees) increases IJV-carotid overlap and arterial puncture risk 4
- Multiple blind attempts - stop after 3-5 attempts and seek alternative access or assistance 3
- Assuming lateral IJV position - the vein is actually anterior to the carotid in 97% of cases 5
- Using subclavian approach in renal patients - this permanently damages future dialysis access options 7
- Proceeding without proper positioning - Trendelenburg and appropriate head rotation are essential 3, 4