5P medicine is defined as Personalized, Predictive, Preventive, Participatory, and Population-based. 5P medicine may be improved by including a factor that could provide information about the therapeutic value of a particular drug treatment and measure its effectiveness in clinical practice. We propose that this factor may be treatment persistence, and that its addition to 5P medicine would allow to define a new improved 6P medicine. Persistence is the length of time between initiation and the last dose, which immediately precedes discontinuation, that is, a definitive suspension of the treatment. By including this sixth P, the persistence, we would be able to present the value of a treatment for each individual patient with its own characteristics, state of the disease, with more than one age-related diseases and patient journey. Persistence is a concept of the value of a treatment that includes the three main stakeholders of the pharmacotherapeutic process: Patient, Physician, and Pharmacist. Persistence is becoming a useful measure to evaluate the long-term effectiveness of therapies in real-world setting in chronic diseases. Drug treatments with longer persistence are more likely to provide better disease control and to be amenable to dose adjustment in order to optimize treatment cost in age-related chronic diseases. Long-term persistence could be a measure of a drug´s real-world performance and has been shown to aid in clinical decision-making.
The coronavirus disease 2019 (COVID-19) pandemic drove many healthcare systems worldwide to postpone elective surgery to increase healthcare capacity, manpower, and reduce infection risk to staff. The aim of this study was to assess the impact of an elective surgery postponement policy in response to the COVID-19 pandemic on surgical volumes and patient outcomes for three emergency bellwether procedures. A retrospective cohort study of patients who underwent any of the three emergency procedures [Caesarean section (CS), emergency laparotomy (EL), and open fracture (OF) fixation] between 1 January 2018 and 31 December 2021 was conducted using clinical and surgical data from electronic medical records. The volumes and outcomes of each surgery were compared across four time periods: pre-COVID (January 2018-January 2020), elective postponement (February-May 2020), recovery (June-November 2020), and postrecovery (December 2020-December 2021) using Kruskal-Wallis test and segmented negative binomial regression. There was a total of 3886, 1396, and 299 EL, CS, and OF, respectively. There was no change in weekly volumes of CS and OF fixations across the four time periods. However, the volume of EL increased by 47% [95% confidence interval: 26-71%, P = 9.13 × 10-7) and 52% (95% confidence interval: 25-85%, P = 3.80 × 10-5) in the recovery and postrecovery period, respectively. Outcomes did not worsen throughout the four time periods for all three procedures and some actually improved for EL from elective postponement onwards. Elective surgery postponement in the early COVID-19 pandemic did not affect volumes of emergency CS and OF fixations but led to an increase in volume for EL after the postponement without any worsening of outcomes.
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