OBJECTIVE: We aimed to predict volume responsiveness and to assess the diagnostic accuracy of carotid flow time (FTc) with the change in hydration status before and after a passive leg raise (PLR) maneuver. METHODS: Participants who presented at a community health fair in a dehydrated state following a prolonged fast while observing the month of Ramadan were recruited. Sonographic FTc measurements were obtained in the semi-Fowler position and after a PLR maneuver while participants were in a fasting state and repeated approximately 3 hours after breaking their fast. RESULTS: In total, 123 participants with mean age of 47±14 years, 55% male, were enrolled. Participants had fasted for an average of 16.9 hours and consumed an average of 933 mL between the 2 ultrasound measurements. Mean FTc values were significantly lower in the fasting state compared with the nonfasting state (312±22 vs 345±25milliseconds, P value < .001). Relative increases in FTc following a PLR maneuver demonstrated strong discrimination of volume status (area under the receiver operating curve: 0.86 [95% confidence interval, 0.81-0.91]). CONCLUSIONS: The use of point-of-care ultrasound to measure FTc may provide a noninvasive alternative to determine fluid status. Percentage change in FTc of ≥5% provides a reliable diagnostic accuracy for predicting fluid status.
OBJECTIVE: We aimed to predict volume responsiveness and to assess the diagnostic accuracy of carotid flow time (FTc) with the change in hydration status before and after a passive leg raise (PLR) maneuver. METHODS:Participants who presented at a community health fair in a dehydrated state following a prolonged fast while observing the month of Ramadan were recruited. Sonographic FTc measurements were obtained in the semi-Fowler position and after a PLR maneuver while participants were in a fasting state and repeated approximately 3 hours after breaking their fast. RESULTS: In total, 123 participants with mean age of 47±14 years, 55% male, were enrolled. Participants had fasted for an average of 16.9 hours and consumed an average of 933 mL between the 2 ultrasound measurements. Mean FTc values were significantly lower in the fasting state compared with the nonfasting state (312±22 vs 345±25milliseconds, P value < .001). Relative increases in FTc following a PLR maneuver demonstrated strong discrimination of volume status (area under the receiver operating curve: 0.86 [95% confidence interval, 0.81-0.91]). CONCLUSIONS: The use of point-of-care ultrasound to measure FTc may provide a noninvasive alternative to determine fluid status. Percentage change in FTc of ≥5% provides a reliable diagnostic accuracy for predicting fluid status.
Authors: Igor Barjaktarevic; William E Toppen; Scott Hu; Elizabeth Aquije Montoya; Stephanie Ong; Russell Buhr; Ian J David; Tisha Wang; Talayeh Rezayat; Steven Y Chang; David Elashoff; Daniela Markovic; David Berlin; Maxime Cannesson Journal: Crit Care Med Date: 2018-11 Impact factor: 7.598
Authors: Joris van Houte; Anniek E Raaijmaakers; Frederik J Mooi; Loek P B Meijs; Esmée C de Boer; Irene Suriani; Saskia Houterman; Leon J Montenij; Arthur R Bouwman Journal: J Ultrasound Date: 2022-04-09
Authors: Adeel Abbasi; Nader Azab; Mohammed Nayeemuddin; Alexandra Schick; Thomas Lopardo; Gary S Phillips; Roland C Merchant; Mitchell M Levy; Michael Blaivas; Keith A Corl Journal: Ultrasound Med Biol Date: 2020-07-31 Impact factor: 2.998
Authors: Irene W Y Ma; Joshua D Caplin; Aftab Azad; Christina Wilson; Michael A Fifer; Aranya Bagchi; Andrew S Liteplo; Vicki E Noble Journal: Crit Ultrasound J Date: 2017-04-20