1Critical Care Department, Faculty of Medicine, Cairo University, Egypt

2Critical Care Department, Suez Canal Authority Hospital, Egypt

Corresponding author: Dr. Walid Mohamed Kamel Ahmed, E-mail: [email protected]

All authors declare no financial support, grants, gifts, equipments, or drugs.

Conflicts of interest: The authors reported no conflicts of interest.

Dr. Walid Mohamed Kamel Ahmed has participated in the design of the work, interpretation of data, drafting the work, and revising it with final approval of the version submitted for publication and agreement to be accountable for all aspects in the work. Dr. Mohamed Samir has participated in the design of the work, interpretation of data, drafting the work, and revising it with final approval of the version submitted for publication and agreement to be accountable for all aspects in the work. Dr. Ashraf Wadie Andraos has participated in the design of the work, interpretation of data, drafting the work, and revising it with final approval of the version submitted for publication and agreement to be accountable for all aspects in the work. Dr. Mohamed Hosny has participated in the design of the work, interpretation of data, drafting the work, and revising it with final approval of the version submitted for publication and agreement to be accountable for all aspects in the work.