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|author1=[[User:Mikael Häggström|Mikael Häggström]]
|author2=
}}
==Planning==
{{Low risk of bleeding|when=when being superficial, such as in the neck, thoracic wall, abdominal wall or limbs}}
==Procedure==
1. Ask for any allergic reaction to local anesthetics
<br>2. Check proper puncture location with ultrasonography.
:*The puncture location can be marked by a skin impression (such as a pen with withdrawn nib), or with a skin marker (which may, however, disappear during washing).
3. The skin area is washed with an antiseptic
<br>4. Wear at least sterile gloves, and use sterile coverage on the ultrasound probe
[[File:Pigtail catheter settings.jpg|thumb|300px|Various settings of a 6 French pigtail catheter with locking string, obturator (also called ''stiffening cannula'') and puncture needle. <br>'''A'''. Overview <br>'''B'''. Both puncture needle and obturator engaged, allowing for direct insertion. <br>'''C'''. Puncture needle retracted. Obturator engaged. Used for example in steady advancement of the catheter on a previously inserted guidewire.<br>'''D'''. Both obturator and puncture needle retracted, when the catheter is in place. <br>'''E'''. Locking string is pulled (bottom center) and then wrapped and attach to the superficial end of the catheter.]]
5. Preferably use a pigtail catheter, for liver abscesses the sizes range between 6–14 French, with a median of 10 French.<ref name="DulkuMohan2015">{{cite journal|last1=Dulku|first1=Gurjeet|last2=Mohan|first2=Geeta|last3=Samuelson|first3=Shaun|last4=Ferguson|first4=John|last5=Tibballs|first5=Jonathan|title=Percutaneous aspiration versus catheter drainage of liver abscess: A retrospective review|journal=Australasian Medical Journal|year=2015|pages=7–18|issn=18361935|doi=10.4066/AMJ.2015.2240}}</ref>
<br>6. Have a scalpel ready for skin incision
<br>7. Infuse local anesthetic, such as 10 - 20 ml of 1% carbocaine, along the planned puncture direction
<br>8. Make a skin incision large enough for the catheter to pass
<br>9. Insert the catheter with the cannula until reaching within the abscess.
<br>10. Loosen the cannula from the catheter, and advance the catheter only.
<br>11. Withdraw the cannula
<br>12. Check for return, and note the color of any fluid. Attach plug, syringe or bag to the external tip.
<br>13. Twist any pigtail of the catheter
<br>14. Fixate the external part to the skin
{{Bottom}}
|author1=[[User:Mikael Häggström|Mikael Häggström]]
|author2=
}}
==Planning==
{{Low risk of bleeding|when=when being superficial, such as in the neck, thoracic wall, abdominal wall or limbs}}
==Procedure==
1. Ask for any allergic reaction to local anesthetics
<br>2. Check proper puncture location with ultrasonography.
:*The puncture location can be marked by a skin impression (such as a pen with withdrawn nib), or with a skin marker (which may, however, disappear during washing).
3. The skin area is washed with an antiseptic
<br>4. Wear at least sterile gloves, and use sterile coverage on the ultrasound probe
[[File:Pigtail catheter settings.jpg|thumb|300px|Various settings of a 6 French pigtail catheter with locking string, obturator (also called ''stiffening cannula'') and puncture needle. <br>'''A'''. Overview <br>'''B'''. Both puncture needle and obturator engaged, allowing for direct insertion. <br>'''C'''. Puncture needle retracted. Obturator engaged. Used for example in steady advancement of the catheter on a previously inserted guidewire.<br>'''D'''. Both obturator and puncture needle retracted, when the catheter is in place. <br>'''E'''. Locking string is pulled (bottom center) and then wrapped and attach to the superficial end of the catheter.]]
5. Preferably use a pigtail catheter, for liver abscesses the sizes range between 6–14 French, with a median of 10 French.<ref name="DulkuMohan2015">{{cite journal|last1=Dulku|first1=Gurjeet|last2=Mohan|first2=Geeta|last3=Samuelson|first3=Shaun|last4=Ferguson|first4=John|last5=Tibballs|first5=Jonathan|title=Percutaneous aspiration versus catheter drainage of liver abscess: A retrospective review|journal=Australasian Medical Journal|year=2015|pages=7–18|issn=18361935|doi=10.4066/AMJ.2015.2240}}</ref>
<br>6. Have a scalpel ready for skin incision
<br>7. Infuse local anesthetic, such as 10 - 20 ml of 1% carbocaine, along the planned puncture direction
<br>8. Make a skin incision large enough for the catheter to pass
<br>9. Insert the catheter with the cannula until reaching within the abscess.
<br>10. Loosen the cannula from the catheter, and advance the catheter only.
<br>11. Withdraw the cannula
<br>12. Check for return, and note the color of any fluid. Attach plug, syringe or bag to the external tip.
<br>13. Twist any pigtail of the catheter
<br>14. Fixate the external part to the skin
{{Bottom}}
