Tehran University of Medical Sciences Archives of Anesthesiology and Critical Care 2423-5849 2 1 2016 04 17 169 171 EN Atabak Najafi Department of Anesthesiology and Critical Care, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran Mohammad Reza Zeraati Department of Anesthesiology and Critical Care, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran Hamidreza Sharifnia Department of Anesthesiology and Critical Care, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran 2016 01 10 2016 03 14 The case is 43 years old woman referred to emergency department of our hospital with quadriplegia and severe respiratory insufficiency due to C5-C6 injury after falling. She discharged from ICU after fixation of the lesion and successful weaning. We evaluated electrical activity of diaphragm signal (Edi), Respiratory drive (P100) during one month period. We detected increase in level of electrical activity of diaphragm and respiratory drive during weaning of patient. https://aacc.tums.ac.ir/index.php/aacc/article/view/57 https://aacc.tums.ac.ir/index.php/aacc/article/download/57/177