St Helier Hospital (full title: St Helier Hospital and Queen Mary's Hospital for Children) in the London Borough of Sutton is run by Epsom and St Helier University Hospitals NHS Trust along with Epsom Hospital. It is located next to the large St Helier council estate and close to the major intersection known as Rosehill.The hospital offers a full range of hospital services including a 24-hour accident and emergency department. The site is also home to the South West Renal and Transplantation Service and the Queen Mary's Hospital for Children, a dedicated children's hospital. St Helier Hospital is a major teaching hospital for St George's, University of London, and is a main teaching site for medical degrees.
Network physiology is a growing and expanding field analysing the exchange of information across body systems. The main goal is to understand and represent the body in a complex network with the hopes that these tools can bring real clinical value. These concepts may seem foreign to most clinicians, but we intuitively understand this in day-to-day practice. The hypoxic patient with asthma presenting with tachycardia or the patient with sepsis presenting with high temperature, low blood pressure and reduced oxygen saturations. Across several disease states, network-based analysis has shown that the loss of healthy variability is a marker of physiological strain. In hypoxic settings alterations in oxygen saturation variability and its relationship with other physiological parameters provides information about an individual’s tolerance and adaptivity. In respiratory conditions such as Chronic Obstructive Pulmonary DiseaseOPD, changes in oxygen-saturation variability can help distinguish stable periods from early exacerbations, offering opportunities for earlier intervention in remote-monitoring settings. In parallel, studies of heart-rate variability (HRV) and heart-rate complexity show similarly promising correlations. These findings illustrate a recurring pattern: disease shifts the body from a flexible, adaptive physiological state to one that is more regular and less responsive, a change that can be captured through continuous-signal analysis and network physiology. Looking ahead, expanding access to continuous monitoring through wearables, both in hospital and at home, creates an opportunity to integrate these insights into everyday clinical practice. Network-physiology metrics could enhance risk stratification, support early warning systems, and help personalise treatment decisions and support precision medicine. “Digital twins” form part of this future in clinical applications. This overview aims to highlight the current impact and uses for network physiology. This will be a jargon-free entry point into the methods, emphasizing practical interpretation, limitations, and realistic pathways for integrating network physiology into everyday care and future research.
Abstract Background Public and clinical attention to postural orthostatic tachycardia syndrome (POTS) has increased, particularly since the COVID-19 pandemic. We quantified changes in United Kingdom Google search interest and examined whether searches increasingly used diagnostic and self-assessment language. Methods We extracted monthly Google Trends relative search volume (RSV; 0–100) for the Health-category search term “Pots syndrome” in the United Kingdom from January 2004 through July 2026. Five extraction attempts were made; two returned complete, identical monthly series and were retained. Prespecified eras were summarised and an exploratory interrupted time-series model at March 2020 used ordinary least squares with Newey–West heteroskedasticity- and autocorrelation-consistent standard errors (12 lags). Comparator searches included conventional orthostatic diagnoses, POTS diagnostic terms, associated conditions and YouTube searches. Results The primary series comprised 271 complete months. Mean RSV increased from 18.6 during 2015–2019 to 64.8 during 2022–2023 (3.49-fold) and remained 50.6 during January 2024–July 2026 (2.73-fold above baseline). Search interest peaked in October 2022 (RSV 100); July 2026 RSV was 57. The interrupted time-series model estimated an immediate March 2020 level increase of 21.8 points (95% CI 2.8–40.7; p=0.024), while the slope change was not statistically supported (0.069 points/month, 95% CI −0.299 to 0.438; p=0.713). Searches for “POTS symptoms”, “POTS test” and “POTS heart rate” increased more steeply than the general term, although low baseline volumes made fold changes unstable. Conclusions UK Google search interest in POTS rose before 2020, increased sharply after the pandemic began, and remained substantially above its prepandemic baseline. The results demonstrate a sustained change in public attention, not disease incidence or social-media causation. The growth of symptom- and testing-oriented searches is compatible with increased diagnostic self-investigation and warrants linkage to referral, diagnosis and social-media exposure data.
