THE IDEAL PROFILE (INCREASE IN B-LINES/DELTA B-LINES) ON LUNG ULTRASOUND FOR DIAGNOSING WEANING INDUCED PULMONARY EDEMA IN VENTILATED PATIENTS

  • Ghulam Rasheed Tabba Heart Institute, Karachi Pakistan
  • Zahid Siddique Shad Indus Hospital, Muzaffargarh Pakistan
  • Tooba Mehreen Shifa International Hospital, Islamabad Pakistan
  • Nusrat Kharadi Shifa International Hospital, Islamabad Pakistan
  • Moazma Ramzan Shifa International Hospital, Islamabad Pakistan
  • Azmat Abdullah Shifa International Hospital, Islamabad Pakistan
  • Kiran Abbas Jinnah Post Graduate Medical Center, Karachi Pakistan
Keywords: Heart failure, Ideal Profile, Mechanical ventilation, Spontaneous breathing trials, Weaning induced pulmonary edema

Abstract

Objective: To ascertain the ideal number of B-lines on lung ultrasound for the diagnosis of weaning induced pulmonary edema in ventilated patients.

Study Design: Prospective observational study.

Place and Duration of Study: Department of Medicine, Shifa International Hospital, Islamabad, from Jan to Aug 2020.

Methodology: All the patients over the age of 18 years who were on mechanical ventilation in a medical intensive care unit were included in the study. The patients were given spontaneous breathing trials as a protocol for weaning from mechanical ventilation. Lung ultrasound was performed on 4 points of anterior chest wall before and after spontaneous breathing trials. Before and after spontaneous breathing trials counting of B lines was done on ultrasound of lung and comparison of increase in B lines (Delta-B-lines) was done with reference diagnosis of weaning induced pulmonary edema diagnosed by intensivist who was blinded to the results of lung ultrasound.

Results: The study included 42 patients including 23 (54.8%) men and 19 (45.2%) women. 14 cases failed spontaneous breathing trials. Seven cases (16.7%) had weaning induced pulmonary edema. Delta-B-lines ≥6 diagnosed weaning induced pulmonary edema with 100% accuracy. Out of the remaining seven patients with weaning failure but without weaning induced pulmonary edema, 6 (28.6%) had Delta-B-lines ≥6. The ultrasound lung technique had a 100% sensitivity profile to detect weaning induced pulmonary edema and a specificity of 77.78%.

Conclusion: The study indicates that Delta-B-lines ≥6 diagnosed the weaning induced pulmonary edema with the best accuracy.

Downloads

Download data is not yet available.
Published
2022-01-01
How to Cite
Rasheed, G., Shad, Z., Mehreen, T., Kharadi, N., Ramzan, M., Abdullah, A., & Abbas, K. (2022). THE IDEAL PROFILE (INCREASE IN B-LINES/DELTA B-LINES) ON LUNG ULTRASOUND FOR DIAGNOSING WEANING INDUCED PULMONARY EDEMA IN VENTILATED PATIENTS. PAFMJ, 71(6), 2220-23. https://doi.org/10.51253/pafmj.v71i6.5691
Section
Original Articles