[The obstruction of a port catheter during the induction of anesthesia].
A 44-year-old woman receiving home hyperalimetation with an implanted port catheter, was scheduled to undergo resection of ovarian cyst and adhesiotomy. For the induction of anesthesia, fentanyl 0.05 mg, thiopental sodium 200 mg, saline 5 ml and vecuronium 10 mg were given through the port catheter. Although she fell asleep, she kept breathing spontaneouly. It was not possible to give any further drugs through this port catheter, suggesting obstruction of the catheter. The endotracheal intubation was assisted with sevoflurane 5% and suxamethonium 80 mg chloride given through the peripheral vein. Five ml of saline used to flash out thiopental sodium before the administration of vecuronium blomide was not considered to be adequate. An experiment was conducted to investigate how much saline is necessary to wash out completely the drug given previously. The results suggest that more than 10 ml of saline should be given through the port catheter. Various types of central venous catheters are being used. Precise knowledge of each catheter is necessary to use this indispensable central vein route, especially at the crucial timing, such as the induction of anesthesia.
Masaki
Kayoko
K
Department of Anesthesia, Nissay Hospital, Osaka 550-0012.
Kawahara
Ryoko
R
Abe
Maiko
M
Hasei
Mari
M
D000328:Adult; D000758:Anesthesia; D002405:Catheterization, Central Venous / Q000009:adverse effects* / Q000295:instrumentation; D002408:Catheters, Indwelling / Q000009:adverse effects*; D005260:Female; D006801:Humans; D007442:Intubation, Intratracheal; D010048:Ovarian Cysts / Q000601:surgery; D016562:Parenteral Nutrition, Home Total