Estimation of Pulmonary Artery Catheter Length: A
Retrospective Study
Volume 1 - Issue 2
Naomi Ujino, Junko Nakahira*, Shoko Nakano, Toshiyuki Sawai and Toshiaki Minami
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- Department of Anesthesiology, Osaka Medical College, Japan
*Corresponding author:
Junko Nakahira, Department of Anesthesiology, Osaka Medical College, Daigaku-machi, Takatsuki, Japan
Received: February 16, 2019; Published: March 01, 2019
DOI: 10.32474/GJAPM.2018.01.000108
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Abstract
Background: Over-insertion of a pulmonary artery catheter (PAC) can cause serious complications, such as pulmonary
embolism and pulmonary artery rupture. Careful management is essential.
Methods: This study investigated relationships between patient parameters and appropriate PAC insertion length. A function
on the chest X-ray display was used to measure the curve. In Study 1, we investigated concordance using intraclass concordance
coincidence (ICC) between recorded insertion length of the PAC and actual inserted length. We reviewed recorded insertion data
from patients’ anesthesia records and measured actual inserted length. In Study 2, we measured and estimated the appropriate
insertion length using chest X-rays taken just after surgery. Multiple logistic regression was performed to investigate relationships
between patient background parameters and appropriate insertion length.
Results: For Study 1, recorded insertion length was 41.2±2.7cm and actual inserted length was 41.9± 3.1cm. ICC (2,1) was
0.867, which shows a high correlation. For Study 2, height and cardiac width on preoperative chest X-rays were significant factors
determining appropriate PAC length. The multiple regression equation for appropriate PAC length (z) with height (x) and cardiac
width (y) was calculated as z(cm) = 0.1x +0.8y+18.1. Height and cardiac width were significant factors determining appropriate
PAC insertion length.
Conclusions: We calculated an equation for the relationship between height and cardiac width to obtain the appropriate PAC
insertion length.
Keywords: Pulmonary artery catheter; Right pulmonary artery; Chest X-ray
Abbreviations: ICC: intraclass concordance coincidence; PAC: pulmonary artery catheter; PCWP: pulmonary capillary wedge
pressure.
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