The NHS body overseeing a crisis-hit hospital where a patient died in casualty due to staff failings has promised a full investigation will result in improvements.

Sarah Price, chief officer of Haringey Clinical Commissioning Group (CCG), said an emergency meeting with senior staff at North Middlesex University Hospital is planned for next week over failings in the A&E department at the hospital.

A CCG report, revealed exclusively by the Enfield Independent, showed that a patient had died in December 2015 despite being monitored by A&E staff. The report placed the blame for the person’s death on “serious failings of management and care”.

Ms Price told the meeting: “There has been concern over North Mid for some time now, and information on the concerns in the report have largely been in the public domain, including on A and E performance.

“The death of this patient is subject to full investigation, and the lessons that need to be learned for that will always be publicly available. That risk summit is going to take place next week, where further action will be agreed.

“As a governing body we are working very closely with the trust, and that hasn’t stopped because of the leak. A lot things have improved in last six months, hopefully that improvement is going to continue.”

It was revealed that the leaders of both Enfield and Haringey Councils have written to the hospital and the CCG over their concerns.

Among the issues highlighted in the report were that North Mid’s A&E department has the lowest public recommendation level in London, and that there is no clinical director in charge of the casualty department. It was revealed in the meeting that the interim manager currently only works two days a week.

Jennie Williams, executive nurse for Haringey CCG, said the investigation is being done by a selected “specialist consultant”. She said an investigation normally takes up to 60 days but she was hopeful this should be completed beforehand.

She said: “Throughout this ongoing investigation we have been in close contact with the hospital’s director of nursing, and have been meeting with the patient’s family regularly. We will move forward from this leak.

“The risk summit process is held in private, with the results made public afterwards. We must have a balance between scrutiny, challenge and evaluation. This investigation being done by someone who is not part of the A&E department, and I am confident that it will produce results.

“It is absolutely right and proper that we come together, and it is necessary as we have to protect public safety.”

Sharon Grant, head of Healthwatch Haringey, said the most important responsibility of the investigation is to restore public confidence in the hospital.

She said: “We clearly have a problem at North Mid and a whole range of issues where standards are falling beneath where we would expect. In the system as a whole, is there a capacity to hold organisation to account?”