Former Prime Minister Atal Bihari Vajpayee continued to be on ventilator support on Saturday with his respiratory track infection remaining a cause of concern, doctors attending on him at the All India Institute of Medical Sciences said.
"Vajpayee's condition is stable. His heart is stable but his lungs require support and that is why we are putting him on ventilation," Dr Sampath Kumar, head of Cardiac Thoracic Vascular Sciences of AIIMS, said.
"His respiratory track infection is the cause of his problem. But his liver, kidney, blood pressure is normal. It will take some time before he recovers fully," he said.
Kumar had on Friday said that the BJP leader's respiratory track infection had worsened. The 84-year-old leader was admitted to AIIMS on Tuesday with complaints of fever and chest congestion. Doctors later found that he was suffering from pneumonia.
Vajpayee continues to be in the Intensive Care Unit, where his progress is being monitored by a team of doctors.