In this pilot study we will study the feasibility of providing and following ICU patients with smart technology for three months after discharge from a general ward of the Leiden University Medical Centre.

Rationale: Smart technology could improve quality of care in patients who have been admitted to the ICU and have been discharged from ICU and hospital, by early diagnosis of complications and early (ambulatory) treatment.

In times of increasing medical care consumption leading to increasing health care costs the investigators have to adopt new ways of acquiring patient-specific knowledge and new ways of delivering care. To obtain this level of insight the investigators need a smart and connected health care system. With the ICU-Recover Box and its smart technology we see new opportunities to improve patient health and to recognise early if escalation of medical care is needed. By intervening early the investigators can reduce costs by reducing health care utilization.

Objectives: The primary objective of the pilot study is to assess the feasibility of the introduction and use of smart technology by persons that have been discharged from the ICU in the three months following hospital discharge. If this pilot study proves to be successful, smart technology will be used in future studies.

Study design: This is a single center cohort study. Study population: The study population consists of 15 patients who have been discharged from the ICU Department to a general ward of the Leiden University Medical Centre.

Intervention: Patients who consent to take part in the study, receive an ICU-Recover Box closely before hospital discharge on the general ward. The ICU-Recover Box will contain a smartphone compatible blood pressure monitor, weight scale, and a watch containing a peripheral oxygen saturation monitor, a pedometer to monitor activity for home monitoring. Never will results of any of the measurements be used for therapy or diagnosis.

Main study parameters/endpoints: The primary endpoint of the study will be the feasibility of providing and following ICU patients with smart technology for three months after discharge from a general ward of the Leiden University Medical Centre.

Inclusion Criteria:

In order to be eligible to participate in this study, a subject must meet all of the following criteria:

• Patient has been admitted to the ICU of the LUMC for > 48 hours.
• Patient has received mechanical ventilation for > 24 hours.
• Patient masters the English or Dutch language.
• Patient is able and capable to use smart technology at home. (i.e. Wi-Fi available, sufficient comprehension of smart technology).
• Patient can be contacted and informed about the ICU-Recover box on one of the clinical wards of the LUMC.
• Patient is discharged from a ward within the LUMC to home..

Exclusion Criteria:

• A potential subject who meets any of the following criteria will be excluded from participation in this study:
• Patient is < 18 years old.
• Patient is pregnant.
• Patient breastfeeds during the course of the study
• Patient underwent cardiothoracic surgery (as they will receive the Cardiothoracic Box in another study).
• Patient is discharged for palliative care.
• Patient is considered an incapacitated adult.
• Patient is unwilling to sign the informed consent form.
• Patient is discharged to another hospital.

Data obtained through this study may be provided to qualified researchers with academic interest in home monitoring of ICU survivors. Data will be coded, with no PHI included. Approval of the request and execution of all applicable agreements (i.e. a data transfer agreement) are prerequisites to the sharing of data with the requesting party.

Data requests can be submitted starting 9 months after article publication and the data will be made accessible for up to 24 months. Extensions will be considered on a case-by-case basis. This is subject to individual patient consent.

Access to trial IPD can be requested by qualified researchers engaging in independent scientific research, and will be provided following review and approval of a research proposal and Statistical Analysis Plan (SAP) and execution of a Data Sharing Agreement (DSA). This is also subject to individual patient consent. For more information or to submit a request, the principal investigator or a member of the research team can be contacted.