A healthy young woman died of a blood clot on the lungs caused by the pill, after doctors have incorrectly diagnosed her with a virus.
Chloe Alicia Ellis, from Dewsbury, had the combined oral contraceptive pill that managed her endometriosis since September 2023 to manage her endometriosis.
But in August 2024 the 29-year-old online contacted NHS 111 Online after he suddenly experienced breast and back pain, as well as breathlessness and inquired that she was on the pill.
The online assessment insisted on her to attend A&E after the algorithm that she probably suffered from a potentially life -threatening pulmonary embolism.
Nevertheless, her did not inform her about this and staff from the District Hospital of Dewsbury had no access to the information given to NHS 111.
Now a coroner has found that doctors in the hospital have taken an ‘insufficient’ medical history of Mrs. Ellis, who was not asked about her medication history – in particular her use of oral contraception – and a viral disease was established before she was fired.
Only three days later she collapsed at home and died on 3 September 2024 in Leeds General Infirmary.
During the investigation into the death of Mrs. Ellis, coroner Oliver Longstaff found that her life could have been saved if the information she gave to the NHS 111 service had been passed on to the hospital.
Chloe Alicia Ellis, from Dewsbury, had taken the combined oral contraceptive pill Yasmin (photo) since September 2023 to manage her endometriosis to manage her endometriosis

The NHS 111 Online Assessment urged her to attend A&E after the algorithm that she probably suffered from a potentially life -threatening pulmonary embolism. Yet she has not informed her about this and staff from the District Hospital of Dewsbury had no access to the information to NHS 111
He said: ‘Had a history of her oral contraception used when Chloe attended a local emergency department on 31 August 2024, she would have received anticoagulant medication and have undergone tests that would have unveiled the pulmonary embolism.
“She would have received effective treatment for the pulmonary embolism and would not have died three days later based on probabilities.”
The situation occurs when a clot forms in a vein, usually in the leg, before he travels to the lung where it gets stuck.
Such blockages can be fatal if the clot blocks the blood supply to the lungs.
According to the coroner, it is possible that NHS 111 online reviews will be made accessible to A&E, but the West Yorkshire Integrated Care Board (ICB) – which supervises Dewsbury District Hospital – has not commissioned NHS 111.
Mr. Longstaff said: “The availability of NHS 111 online reviews to clinicians on emergency care can help obtain a complete history and can act as a failure to do insufficient history that is submitted in emergency departments.”
A spokesperson for West Yorkshire ICB said that trust worked to understand what changes were needed in the future.
They said: ‘We are very sorry to hear what happened to Chloe, and our sincere condolences go to her loved ones.

The NHS says that natural family planning can be effective up to 99 percent when it is performed correctly and about 75 percent if it is not used according to the instructions. For comparison: the pill, implant, IUS and IUD are 99 percent effective with perfect use, while condoms are 98 percent

Only three days after contact with NHS 111, she collapsed at home and died on 3 September 2024 in Leeds General Infirmary
“We have dealt with the coroner and we work together with all our relevant partners to understand learning and the current regulations to determine which changes are required to prevent similar losses in the future.”
Mr Longstaff has also written to the ICB with his findings in a prevention of future death report.
The Medicines and Healthcare Products Regulatory Agency (MHRA) – which protect the safety of medicines in Britain – notes that the combined pill, which is also often considered an endometriosis and acne medication, can increase the risk of blood clots.
However, the benefits outweigh the risk of serious side effects, “it adds.
It is believed that the reaction is due to how estrogen – a hormone in the combined pill – increases the number of coagulation substances in women’s blood. The pill contains estrogen and progestogenic.
At higher levels, this increases the risk that a clot will form everywhere in the body, such as the lungs. If this is disconnected, it can also travel to the brain – a blow.
The newest NHS figures for suggestion that there were nearly 3 million recipes for the combined pill and more than 4 million for the mini pill, which only contains progestogenic.
About a quarter of all women aged 15 to 49 are on the only combined or progesterone pill.

According to the NHS data, the proportion of women who take oral contraceptives has fallen by more than two-thirds, from 420,600 in 2012/13 to 126,400 in 2022/23. About 555,400 women turned to the sexual and reproductive health services of health care in 2022/23 same to four percent of 13 to 54-year-olds
But the faculty of sexual and reproductive health care estimates that about 1 percent of women who use contraception are at risk suffering blood clots.
Well -known side effects of the drug – proven proven more than 99 percent effectively in stopping pregnancy – also include nausea, sensitivity of breasts, mood swings and headaches.
However, rare complications of the combined and the mini pill can include a somewhat increased risk of chest and cervical cancer.
Research also suggests 40 percent of patients who die from a pulmonary embolism complained weeks before their death about nagging symptoms.
For every time diagnosed in pulmonary embolism, there are at least two where the diagnosis was missed and resulted in sudden death, according to the Charity Thrombosis UK.
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