A Nigerian-born doctor who lied about his age and killed a mother-of-three in a botched routine procedure while her husband begged him to stop, has been jailed for three years.
Isyaka Mamman, an 85-year-old NHS Doctor carried out a ‘highly dangerous procedure’ on the married mum of three instead of using a conventional technique, even as her husband ‘begged’ him to stop and she ‘screamed’ in pain.
The doctor who was suspended once by medical watchdogs before being sacked, was re-employed by the Royal Oldham Hospital, where he was responsible for a series of critical incidents.
The medic had also used various dates of birth and left his previous job due to “poor performance”, Manchester Crown Court earlier heard.
At an earlier hearing, Mamman pleaded guilty to gross negligence manslaughter. Jailing him for three years at Manchester Crown Court, Mrs Justice Yip said the death was his main responsibility but the hospital trust should have done more after Dr Mamman had lied about his age and botched two earlier similar procedures, injuring patients.
Prosecutors said the procedure carried out on Mrs Parveen was rarely used in the UK. She had objected as Dr Mamman asked her to roll onto her back but submitted after he reassured her he had 40 years of experience, Manchester Crown Court previously heard.
He inserted the biopsy needle but missed the sternum ‘altogether’, causing a fatal puncture wound to the pericardium which encloses the heart.
After Mrs Parveen collapsed, her husband came running out of the room shouting: ‘He killed her! ‘I told him to stop three times and he did not listen. He killed her.’
Three years earlier, Dr Mamman had carried out the same procedure on a 64-year-old man who then suffered a cardiac arrest. The man survived but was left permanently disabled.
Following the botched procedure, Mrs Parveen regained consciousness but died later that day. Her cause of death was registered as ‘cardiac tamponade’, the building up of extra fluids causing pressure on the heart, caused as a result of the needle Dr Mamman used.
Mrs Parveen’s husband Khizar Mahmood said;
‘She was young and well, she had no problems when she died.
‘Every day I relive that day in the hospital, her name being called, going into the room, the way the doctor spoke to us and when he didn’t listen to us both telling him to leave it.
‘She was everything to me and our three sons.’
Mamman qualified as a doctor in Nigeria in 1965 and had worked in the UK since 1991. From 2004 until the time of the fatal incident he was employed by the Pennine Acute Hospitals NHS Trust.
But his “true age” is a matter of “controversy”, the court heard, as his birthplace in rural Nigeria had no system of birth registration.
During his medical training he gave a date of birth of September 16 1936, which meant that he was 21 years old when he began his medical training and 81 at the time of the fatal hospital incident.
But he knocked years off his age by adopting a birth date in 1941, provided to the NHS, suggesting he began his medical degree at the age of 16.
However, in about 2001 and approaching what was then the compulsory retirement age of 65, Mamman adopted an even later birth date – October 1947 – which he relied upon in an application for naturalisation as a British citizen – suggesting he started his degree course at the age of 10.
In 2004 he was found guilty of serious professional misconduct by the General Medical Council and suspended for 12 months for lying about his age.
The Pennine Trust sacked him but then re-employed him in 2006, after he had been restored to the register by the GMC, who accepted his date of birth to be 1943 – which meant he was 14 or 15 when he began his medical degree.