Ultrasound turned the internal jugular line from a landmark gamble into a watched procedure. The rules that remain are about discipline, not dexterity: full sterility every time, eyes on the needle tip every millimeter, and never — ever — dilating a wire you haven't confirmed.
Before you set up: does this patient actually need a central line, or do two good peripherals and a pressure-tolerant pump cover it?
Cap, mask, sterile gown, sterile gloves, full-body drape, chlorhexidine dried before puncture, sterile probe cover and gel. Partial sterility is a line infection on a timer.
Head down 10–15° distends the vein and guards against air embolism. Head turned slightly away — extreme rotation flattens the IJ over the carotid.
Scan both sides first: vein size, collapse with sniff, thrombus, and where the carotid sits. Pick the better side while changing plans is still free.
Local per institutional reference · needle enters at 45° · tip tracked continuously
Center the vein on screen, enter the skin at ~45° just off the probe, and advance while walking the probe ahead of the tip so the tip — not the shaft — is always the bright dot you're watching. Watch the needle tent the anterior wall and pop in; flash of dark venous blood confirms.
Flatten toward the skin · wire advances with zero resistance · never past ~20 cm
Flatten the needle so the wire follows the vein rather than the back wall, and thread the guidewire smoothly. Any resistance means stop — withdraw, re-confirm, retry. Watch the monitor: a wire tickling the right heart makes ectopy; pull back a few centimeters and it stops.
Ultrasound the wire in the vein · two views · short and long axis
This is the safety step that makes arterial dilation nearly impossible: see the wire inside the IJ in short axis, then rotate and see it running within the vein in long axis. Only then remove the needle.
Skin nick at the wire · dilator to vessel depth only · catheter over wire
Small skin nick against the wire, then advance the dilator with a twisting motion only as deep as the vessel — it's dilating the track, not exploring the mediastinum. Slide the catheter over the wire (retrieving the wire tip from the distal port before the catheter fully advances), to ~14–16 cm on the right, a couple more on the left.
Aspirate · flush · cap · then suture and dress
Aspirate dark, non-pulsatile blood from every lumen and flush each. Doubt about venous placement? Transduce the pressure or run a blood gas from the line before using it. Suture at the hub, chlorhexidine dressing, date it.
Chest x-ray · tip at the cavoatrial junction · look at the pleura
Chest x-ray confirms the tip near the cavoatrial junction and screens the apex for pneumothorax — or use a saline-bubble study plus lung sliding on ultrasound if your shop has adopted the faster protocol. Document everything, including that the wire count is zero.
| Complication | Prevented by | If it happens |
|---|---|---|
| Arterial puncture | tip tracking | Needle only: remove, hold pressure. Dilated or cannulated: leave it in and call vascular — do not pull it |
| Arterial dilation | 2-view wire check | The catastrophe the wire confirmation exists to prevent; leave, consult, image |
| Pneumothorax | site + vision | Rare with US-guided IJ; post-procedure imaging catches it — symptomatic + unstable means decompress |
| Air embolism | Trendelenburg | Occlude the hub, left lateral decubitus head-down, high-flow oxygen |
| Dysrhythmia | wire < 20 cm | Withdraw the wire a few centimeters; it resolves as the tip leaves the ventricle |
| Line infection | full barrier | Decided at insertion, discovered days later. Also: pull the line the day it stops being needed |
Thirty seconds of pre-scanning finds the thrombosed IJ, the tiny vein, and the carotid that sits directly underneath — while switching sides costs nothing. The worst time to discover bad anatomy is fully gowned.
A triple-lumen is a slow line with three doors. The crashing hemorrhage patient needs a short, fat introducer or two large peripherals — choose the catheter for the physiology, not the habit.
Venous flash and an easy wire can both happen through-and-through the vein into the carotid. The two-view wire confirmation costs twenty seconds; the dilated carotid costs a vascular surgeon.
The dilator needs to open skin and vessel wall — a few centimeters. Burying it to the hub because it "kept going" lacerates veins and worse. Twist, feel the give, stop.
Every central-line day is infection risk with no offsetting benefit once the indication resolves. Write "assess line necessity" into your own signout, because nobody else will pull your line.
Treat the guidewire like a surgical sponge: announced in, announced out, visible in between. The retained wire happens to careful people on busy nights — the ritual is the defense.
A starting template for the procedure note. Text in brackets [ ] and pick-lists in { } are fields to complete. Save it as a SmartPhrase, then edit every field to match the actual procedure.
PROCEDURE: CENTRAL VENOUS CATHETER
Site: {right IJ : left IJ : subclavian : femoral}
Catheter: {triple lumen : introducer : dialysis} *** cm
Indication: [***]
Consent: {verbal : written : emergent, implied}; risks
including bleeding, infection, pneumothorax, and arterial
injury discussed. Timeout performed. Operator: @ME@
Precautions: full sterile barrier (cap, mask, gown, gloves,
full drape), chlorhexidine prep, sterile probe cover.
Position: Trendelenburg.
Anesthesia: [per institutional protocol ***]
Technique: dynamic ultrasound guidance, vein entered on
attempt #***. Guidewire threaded without resistance; wire
position within the vein confirmed by ultrasound in two
planes prior to dilation. Dilated; catheter advanced to
*** cm. All ports aspirated and flushed. Secured with
suture, sterile dressing applied. Guidewire removed intact.
Confirmation: {CXR — tip at cavoatrial junction, no PTX :
saline bubble study + lung sliding}
Complications: {none : ***}
EBL: minimal
Electronically signed: @ME@ @TD@ @NOW@
Sample template only — not a validated institutional SmartPhrase. Verify wording, consent, and attestation requirements against your department's documentation, coding, and compliance policies before clinical use.