Utility of lung ultrasound for extravascular lung water volume estimation during cytoreductive surgery and hyperthermic intraperitoneal chemotherapy

Background and Aims: Rising extravascular lung-water index (ELWI) following cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS + HIPEC), if not timely intervened, can progress to pulmonary oedema. Transpulmonary thermodilution (TPTDL) is a standard technique to estimate ELWI (T...

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Main Authors: Amit Kumar Mittal, Jiten Jaipuria, Anil Patel, Vishal Bhatnagar, Rajiv Chawla, Shivendra Singh
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2021-01-01
Series:Indian Journal of Anaesthesia
Subjects:
Online Access:http://www.ijaweb.org/article.asp?issn=0019-5049;year=2021;volume=65;issue=6;spage=458;epage=464;aulast=Mittal
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author Amit Kumar Mittal
Jiten Jaipuria
Anil Patel
Vishal Bhatnagar
Rajiv Chawla
Shivendra Singh
author_facet Amit Kumar Mittal
Jiten Jaipuria
Anil Patel
Vishal Bhatnagar
Rajiv Chawla
Shivendra Singh
author_sort Amit Kumar Mittal
collection DOAJ
description Background and Aims: Rising extravascular lung-water index (ELWI) following cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS + HIPEC), if not timely intervened, can progress to pulmonary oedema. Transpulmonary thermodilution (TPTDL) is a standard technique to estimate ELWI (T-ELWI score), and track ongoing changes. Lung ultrasound (LUS) is another technique for ELWI (L-ELWI score) estimation. However, reproducibility and reliability of LUS for tracking serial L-ELWI changes during CRS + HIPEC remains to be validated. Methods: This prospective observational study included 360 L-ELWI and T-ELWI measurements at 12 peri-operative time-points. Cohen's Kappa test was used to assess reproducibility, Inter-rater agreement (between the anaesthetist and radiologist), and agreement between LUS and TPTDL for classifying the severity of pulmonary oedema. Reliability of LUS for 'tracking serial changes' in ELWI over time in individual patients was assessed by determining the repeated measures correlation (z-rrm) between weighted L-ELWI and T-ELWI scores. The ability of both techniques to discriminate pulmonary oedema was compared by analysing the area under ROC curves. Results: Excellent inter-rater agreement for assigned L-ELWI scores was observed (linear weighted κ = 0.95 for both). Both techniques had a good agreement in classifying the severity of pulmonary oedema (linear weighted κ = 0.63, 95% CI 0.51–0.79). T-ELWI and weighted L-ELWI scores correlated strongly (z-rrm = 0.88, 95% CI 0.80–0.92, P < 0.0001). Both techniques had comparable ability to discriminate pulmonary oedema (difference in area under ROC curve = 0.0014, 95%CI –0.0027 to 0.0055, P = 0.5043). Conclusion: We found the utility of LUS as a reliable and reproducible technique for ELWI estimation and tracking its changes over time in CRS + HIPEC.
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spelling doaj.art-f350761ba1614f42af743fd7fd2ff3562022-12-21T22:41:33ZengWolters Kluwer Medknow PublicationsIndian Journal of Anaesthesia0019-50490976-28172021-01-0165645846410.4103/ija.IJA_1513_20Utility of lung ultrasound for extravascular lung water volume estimation during cytoreductive surgery and hyperthermic intraperitoneal chemotherapyAmit Kumar MittalJiten JaipuriaAnil PatelVishal BhatnagarRajiv ChawlaShivendra SinghBackground and Aims: Rising extravascular lung-water index (ELWI) following cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS + HIPEC), if not timely intervened, can progress to pulmonary oedema. Transpulmonary thermodilution (TPTDL) is a standard technique to estimate ELWI (T-ELWI score), and track ongoing changes. Lung ultrasound (LUS) is another technique for ELWI (L-ELWI score) estimation. However, reproducibility and reliability of LUS for tracking serial L-ELWI changes during CRS + HIPEC remains to be validated. Methods: This prospective observational study included 360 L-ELWI and T-ELWI measurements at 12 peri-operative time-points. Cohen's Kappa test was used to assess reproducibility, Inter-rater agreement (between the anaesthetist and radiologist), and agreement between LUS and TPTDL for classifying the severity of pulmonary oedema. Reliability of LUS for 'tracking serial changes' in ELWI over time in individual patients was assessed by determining the repeated measures correlation (z-rrm) between weighted L-ELWI and T-ELWI scores. The ability of both techniques to discriminate pulmonary oedema was compared by analysing the area under ROC curves. Results: Excellent inter-rater agreement for assigned L-ELWI scores was observed (linear weighted κ = 0.95 for both). Both techniques had a good agreement in classifying the severity of pulmonary oedema (linear weighted κ = 0.63, 95% CI 0.51–0.79). T-ELWI and weighted L-ELWI scores correlated strongly (z-rrm = 0.88, 95% CI 0.80–0.92, P < 0.0001). Both techniques had comparable ability to discriminate pulmonary oedema (difference in area under ROC curve = 0.0014, 95%CI –0.0027 to 0.0055, P = 0.5043). Conclusion: We found the utility of LUS as a reliable and reproducible technique for ELWI estimation and tracking its changes over time in CRS + HIPEC.http://www.ijaweb.org/article.asp?issn=0019-5049;year=2021;volume=65;issue=6;spage=458;epage=464;aulast=Mittalchest ultrasoundextravascular lung-waterhyperthermic intraperitoneal chemotherapypulmonary oedematranspulmonary thermodilution
spellingShingle Amit Kumar Mittal
Jiten Jaipuria
Anil Patel
Vishal Bhatnagar
Rajiv Chawla
Shivendra Singh
Utility of lung ultrasound for extravascular lung water volume estimation during cytoreductive surgery and hyperthermic intraperitoneal chemotherapy
Indian Journal of Anaesthesia
chest ultrasound
extravascular lung-water
hyperthermic intraperitoneal chemotherapy
pulmonary oedema
transpulmonary thermodilution
title Utility of lung ultrasound for extravascular lung water volume estimation during cytoreductive surgery and hyperthermic intraperitoneal chemotherapy
title_full Utility of lung ultrasound for extravascular lung water volume estimation during cytoreductive surgery and hyperthermic intraperitoneal chemotherapy
title_fullStr Utility of lung ultrasound for extravascular lung water volume estimation during cytoreductive surgery and hyperthermic intraperitoneal chemotherapy
title_full_unstemmed Utility of lung ultrasound for extravascular lung water volume estimation during cytoreductive surgery and hyperthermic intraperitoneal chemotherapy
title_short Utility of lung ultrasound for extravascular lung water volume estimation during cytoreductive surgery and hyperthermic intraperitoneal chemotherapy
title_sort utility of lung ultrasound for extravascular lung water volume estimation during cytoreductive surgery and hyperthermic intraperitoneal chemotherapy
topic chest ultrasound
extravascular lung-water
hyperthermic intraperitoneal chemotherapy
pulmonary oedema
transpulmonary thermodilution
url http://www.ijaweb.org/article.asp?issn=0019-5049;year=2021;volume=65;issue=6;spage=458;epage=464;aulast=Mittal
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