The findings were presented at the annual congress of the Mexican Society of Cardiology is being held in Guadalajara, Jalisco by experts from the European Society of Cardiology (ESC).
‘With standardised sterilisation process, explanted pacemakers with a battery life of more than six years can be reused safely, says study.’
"There is no report of the number of pacemaker implants per year in Mexico, but we implant close to 150 new pacemakers per year in our hospital," said first author Dr Carlos Gutiérrez, a cardiologist at the General Hospital of Mexico "Dr. Eduardo Liceaga" in Mexico City.
"According to government reports, more than half of the population in Mexico does not have access to social security or private insurance that covers a pacemaker implant and 44% live in poverty,
" he continued. "This suggests that many Mexicans cannot afford a pacemaker. Previous studies have shown the safety of reusing pacemakers after sterilisation."
The current study included 33 patients with a pacing indication who could not afford a new pacemaker or a battery change. Patients received a reused device at the General Hospital of Mexico in 2011 to 2017. Devices had been donated by relatives of deceased patients and had a minimum of six years of battery life.
After confirming that the pacemakers were functioning correctly, they were washed with enzymatic soap and sterilised in an autoclave for 38 minutes. Pacemaker function was rechecked after sterilisation.
Patients were 72 years old on average (the age range was 20 to 106 years) and 52% were female. The indications for a pacemaker were sinus node dysfunction in ten patients (30%) and advanced atrioventricular block in 23 patients (70%).
Of the 33 patients, 25 received a reused pacemaker. Eight patients already had a pacemaker and received a reused generator (battery). During the implant procedure there was one haematoma which resolved without further complications. There were no complications during the six month follow-up period.
Dr Gutiérrez said: "This was a small study but it shows that with a thorough and standardised sterilisation process, explanted pacemakers with a battery life of more than six years can be reused safely. This provides an effective option for patients who cannot afford a new device or a replacement battery.
"This practice could be implemented in many other centres that have equipment to sterilise and reprogramme pacemakers," continued Dr Gutiérrez. "We also need to promote the donation of pacemakers with little use from deceased patients."
Dr Erick Alexanderson, President of the Mexican Society of Cardiology, said: "This study has encouraging results which open up the possibility of pacemaker treatment for many more Mexicans who need it."
Professor Jose Zamorano, course director of the ESC programme in Mexico, said: "Pacemakers are implanted in many patients across the globe every year. This study highlights a practical way to give access to this life-saving treatment to even more patients who need it.