scholarly journals Screening for postoperative vital signs abnormalities, and particularly hemodynamic ones, by continuous monitoring: protocol for the Biobeat-Postop cohort study

F1000Research ◽  
2021 ◽  
Vol 10 ◽  
pp. 622
Author(s):  
Alexis Paternot ◽  
Philippe Aegerter ◽  
Aurélie Martin ◽  
Jonathan Ouattara ◽  
Sabrina Ma ◽  
...  
Keyword(s):  
Cohort Study ◽  
Remote Monitoring ◽  
Vital Signs ◽  
Ease Of Use ◽  
Post Anaesthesia Care Unit ◽  
Link Type ◽  
Routine Surveillance ◽  
Observational Cohort ◽  
Anaesthesia Care

Background: Postoperative hypotension associated with postoperative morbidity and early mortality has been studied previously. Hypertension and other hemodynamic, respiratory, and temperature abnormalities have comparatively understudied during the first postoperative days. Methods: This bi-centre observational cohort study will include 114 adult patients undergoing non-cardiac surgery hospitalized on an unmonitored general care floor and wearing a multi-signal wearable sensor, allowing remote monitoring (Biobeat Technologies Ltd, Petah Tikva, Israel). The study will cover the first 72 hours after discharge of the patient from the post-anaesthesia care unit. Several thresholds will be used for each variable (arterial pressure, heart rate, respiratory rate, oxygen saturation, and skin temperature). Data obtained using the sensor will be compared to data obtained during the routine nurse follow-up. The primary outcome is hemodynamic abnormality. The secondary outcomes are postoperative respiratory and temperature abnormalities, artefacts and blank/null outputs from the wearable device, postoperative complications, and finally, the ease of use of the device. We hypothesize that remote monitoring will detect abnormalities in vital signs more often or more quickly than the detection by nurses’ routine surveillance. Discussion: A demonstration of the ability of wireless sensors to outperform standard monitoring techniques paves the way for the creation of a loop which includes this monitoring mode, the automated creation of alerts, and the sending of these alerts to caregivers. Trial registration: ClinicalTrials.gov, NCT04585178. Registered on October 14, 2020

scholarly journals Screening for postoperative complications by continuous monitoring: protocol for the Biobeat-Postop cohort study

F1000Research ◽  
2021 ◽  
Vol 10 ◽  
pp. 622
Author(s):  
Alexis Paternot ◽  
Philippe Aegerter ◽  
Aurélie Martin ◽  
Jonathan Ouattara ◽  
Sabrina Ma ◽  
...  
Keyword(s):  
Cohort Study ◽  
Postoperative Complications ◽  
Remote Monitoring ◽  
Vital Signs ◽  
Ease Of Use ◽  
Link Type ◽  
Routine Surveillance ◽  
Observational Cohort ◽  
Anaesthesia Care

Background: Postoperative hypotension associated with postoperative morbidity and early mortality has been studied previously. Hypertension and other hemodynamic, respiratory, and temperature abnormalities have comparatively understudied during the first postoperative days. Methods: This bi-centre observational cohort study will include 114 adult patients undergoing non-cardiac surgery hospitalized on an unmonitored general care floor and wearing a multi-signal wearable sensor, allowing remote monitoring (Biobeat Technologies Ltd, Petah Tikva, Israel). The study will cover the first 72 hours after discharge of the patient from the post-anaesthesia care unit. Several thresholds will be used for each variable (arterial pressure, heart rate, respiratory rate, oxygen saturation, and skin temperature). Data obtained using the sensor will be compared to data obtained during the routine nurse follow-up. The primary outcome is hemodynamic abnormality. The secondary outcomes are postoperative respiratory and temperature abnormalities, artefacts and blank/null outputs from the wearable device, postoperative complications, and finally, the ease of use of the device. We hypothesize that remote monitoring will detect abnormalities in vital signs more often or more quickly than the detection by nurses’ routine surveillance. Discussion: A demonstration of the ability of wireless sensors to outperform standard monitoring techniques paves the way for the creation of a loop which includes this monitoring mode, the automated creation of alerts, and the sending of these alerts to caregivers. Trial registration: ClinicalTrials.gov, NCT04585178. Registered on October 14, 2020

Acute complications in the post-anaesthesia care unit after infrainguinal surgery for lower limb ischaemia – a prospective observational cohort study

VASA ◽  
2019 ◽  
Vol 48 (1) ◽  
pp. 89-97
Author(s):  
Karin Yeung ◽  
Jonas Peter Eiberg ◽  
Henrik Kehlet ◽  
Eske Kvanner Aasvang
Keyword(s):  
Lower Limb ◽  
Severe Pain ◽  
Observational Cohort Study ◽  
Limb Ischaemia ◽  
Post Anaesthesia Care Unit ◽  
Lower Limb Ischaemia ◽  
Acute Complications ◽  
Observational Cohort ◽  
Anaesthesia Care ◽  
Pacu Stay

Abstract. Background: Arterial surgery for lower limb ischaemia is a frequently performed procedure in patients with severe cardio-pulmonary comorbidities, making them high-risk patients for acute postoperative complications with a need for prolonged stay in the post-anaesthesia care unit (PACU). However, detailed information on complications during the PACU stay is limited, hindering mechanism-based interventions for early enhanced recovery. Thus, we aimed to systematically describe acute complications and related risk factors in the immediate postoperative phase after infrainguinal arterial surgery. Patients and methods: Patients transferred to the PACU after infrainguinal arterial surgery due to chronic or acute lower limb ischaemia were consecutively included in a six-month observational cohort study. Pre- and intraoperative data included comorbidities as well as surgical and anaesthetic technique. Data on complications and treatments in the PACU were collected every 15 minutes using a standardised assessment tool. The primary endpoint was occurrence of predefined moderate or severe complications occurring during PACU stay. Results: In total, 155 patients were included for analysis. Eighty (52 %) patients experienced episodes with oxygen desaturation (< 85 %) and moderate or severe pain occurred in 72 patients (47 %); however, circulatory complications (hypotension, tachycardia) were rare. Preoperative opioid use was a significant risk factor for moderate or severe pain in PACU (59 vs. 38 % chronic vs. opioid naïve patients (P = 0.01). Conclusions: Complications in the PACU after infrainguinal arterial surgery relates to saturation and pain, suggesting that future efforts should focus on anaesthesia and analgesic techniques including opioid sparing regimes to enhance early postoperative recovery.

scholarly journals Prevalence and Course of IgA and IgG Antibodies against SARS-CoV-2 in Healthcare Workers during the First Wave of the COVID-19 Outbreak in Germany: Interim Results from an Ongoing Observational Cohort Study

Healthcare ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 498
Author(s):  
Mark Reinwald ◽  
Peter Markus Deckert ◽  
Oliver Ritter ◽  
Henrike Andresen ◽  
Andreas G. Schreyer ◽  
...  
Keyword(s):  
Cohort Study ◽  
Healthcare Workers ◽  
Significant Proportion ◽  
Clinical Signs ◽  
Signs And Symptoms ◽  
Observational Cohort Study ◽  
Igg Antibodies ◽  
University Hospitals ◽  
Observational Cohort

(1) Background: Healthcare workers (HCWs) are prone to intensified exposure to severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection in the ongoing pandemic. We prospectively analyzed the prevalence of antibodies against SARS-CoV-2 in HCWs at baseline and follow up with regard to clinical signs and symptoms in two university hospitals in Brandenburg, Germany. (2) Methods: Screening for anti-SARS-CoV-2 IgA and IgG antibodies was offered to HCWs at baseline and follow up two months thereafter in two hospitals of Brandenburg Medical School during the first wave of the COVID-19 pandemic in Germany in an ongoing observational cohort study. Medical history and signs and symptoms were recorded by questionnaires and analyzed. (3) Results: Baseline seroprevalence of anti-SARS-CoV-2 IgA was 11.7% and increased to 15% at follow up, whereas IgG seropositivity was 2.1% at baseline and 2.2% at follow up. The rate of asymptomatic seropositive cases was 39.5%. Symptoms were not associated with general seropositivity for anti-SARS-CoV-2; however, class switch from IgA to IgG was associated with increased symptom burden. (4) Conclusions: The seroprevalence of antibodies against SARS-CoV-2 was low in HCWs but higher compared to population data and increased over time. Screening for antibodies detected a significant proportion of seropositive participants cases without symptoms.

scholarly journals Cohort profile: the Chinese Pregnant Women Cohort Study and Offspring Follow-up (CPWCSaOF)

BMJ Open ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. e044933
Author(s):  
Tianchen Lyu ◽  
Yunli Chen ◽  
Yongle Zhan ◽  
Yingjie Shi ◽  
Hexin Yue ◽  
...  
Keyword(s):  
Cohort Study ◽  
Pregnant Women ◽  
First Trimester ◽  
Health Problems ◽  
Environmental Data ◽  
Geographical Information ◽  
Obstetric Outcomes ◽  
Factors Affecting ◽  
Link Type

PurposeA multicentre prospective cohort study, known as the Chinese Pregnant Women Cohort Study (CPWCS), was established in 2017 to collect exposure data during pregnancy (except environmental exposure) and analyse the relationship between lifestyle during pregnancy and obstetric outcomes. Data about mothers and their children’s life and health as well as children’s laboratory testing will be collected during the offspring follow-up of CPWCS, which will enable us to further investigate the longitudinal relationship between exposure in different periods (during pregnancy and childhood) and children’s development.Participants9193 pregnant women in 24 hospitals in China who were in their first trimester (5–13 weeks gestational age) from 25 July 2017 to 26 November 2018 were included in CPWCS by convenience sampling. Five hospitals in China which participated in CPWCS with good cooperation will be selected as the sample source for the Chinese Pregnant Women Cohort Study (Offspring Follow-up) (CPWCS-OF).Findings to dateSome factors affecting pregnancy outcomes and health problems during pregnancy have been discovered through data analysis. The details are discussed in the ‘Findings to date’ section.Future plansInfants and children and their mothers who meet the criteria will be enrolled in the study and will be followed up every 2 years. The longitudinal relationship between exposure (questionnaire data, physical examination and biospecimens, medical records, and objective environmental data collected through geographical information system and remote sensing technology) in different periods (during pregnancy and childhood) and children’s health (such as sleeping problem, oral health, bowel health and allergy-related health problems) will be analysed.Trail registration numberCPWCS was registered with ClinicalTrials.gov on 18 January 2018: NCT03403543. CPWCS-OF was registered with ClinicalTrials.gov on 24 June 2020: NCT04444791.

scholarly journals Neonatal Severe Hyperbilirubinemia Online Registry in Jiangsu Province: protocol for a multicentre, prospective, open, observational cohort study

BMJ Open ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. e040797
Author(s):  
Qianqian Li ◽  
Xiaoyi Deng ◽  
Junmei Yan ◽  
Xiaofan Sun ◽  
Xiaoyue Dong ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cohort Study ◽  
Observational Cohort Study ◽  
Jiangsu Province ◽  
Survival Status ◽  
Bilirubin Encephalopathy ◽  
Brainstem Response ◽  
Observational Cohort ◽  
Severe Hyperbilirubinemia

IntroductionSevere hyperbilirubinaemia in newborns can be easily complicated by acute bilirubin encephalopathy or even kernicterus, which could lead to neurological sequelae or death. However, there is no systematic study of the management of severe hyperbilirubinaemia in China. The Neonatal Severe Hyperbilirubinemia Online Registry study aims to investigate the management of jaundice before admission, risk factors and outcomes of severe hyperbilirubinaemia in a real-world setting in China.Methods and analysisThis is a prospective, multicentre, open, observational cohort study. From May 2020 to April 2023, more than 2000 patients with neonatal severe hyperbilirubinaemia from 13 tertiary hospitals in Jiangsu Province will join the study. Demographic data and treatment information will be collected from their clinical data. Management measures for jaundice before admission will be collected by the WeChat applet (called ‘Follow-up of jaundice’) after being provided by the patient’s guardian using a mobile phone. Follow-up data will include cranial MRI examination results, brainstem auditory-evoked potential or automatic auditory brainstem response, physical examination results and Griffiths Development Scales-Chinese at the corrected ages of 3–6 months and 1 and 2 years. Results and conclusions will be recorded using ‘Follow-up of jaundice.’ In-hospital outcomes, including severity of hyperbilirubinaemia (severe, extreme, hazardous), acute bilirubin encephalopathy (mild, moderate, severe) and survival status (death or survival), will be collected at discharge. Follow-up outcomes will include loss to follow-up, survival status and kernicterus (yes or no) at 2 years. The research will enhance our comprehensive knowledge of jaundice management before admission, risk factors and outcomes of severe hyperbilirubinaemia in China, which will ultimately help to reduce the incidence of neonatal severe hyperbilirubinaemia.Ethics and disseminationOur protocol has been approved by the Medical Ethics Committee of Nanjing Maternity and Child Health Care Hospital. We will present our findings at national conferences and peer-reviewed paediatrics journals.Trial registration numberNCT04251286.

scholarly journals One-year outcomes in a multicentre cohort study of incident rare diffuse parenchymal lung disease in children (ChILD)

Thorax ◽  
2019 ◽  
Vol 75 (2) ◽  
pp. 172-175 ◽  
Author(s):  
Steve Cunningham ◽  
Catriona Graham ◽  
Morag MacLean ◽  
Paul Aurora ◽  
Michael Ashworth ◽  
...  
Keyword(s):  
Cohort Study ◽  
Lung Disease ◽  
Low Oxygen ◽  
Child Survivors ◽  
Diffuse Parenchymal Lung Disease ◽  
Multicentre Cohort Study ◽  
Observational Cohort ◽  
One Year ◽  
First Time

We performed a prospective, observational, cohort study of children newly diagnosed with children’s interstitial lung disease (ChILD), with structured follow-up at 4, 8, 12 weeks and 6 and 12 months. 127 children, median age 0.9 (IQR 0.3–7.9) years had dyspnoea (68%, 69/102), tachypnoea (75%, 77/103) and low oxygen saturation (SpO2) median 92% (IQR 88–96). Death (n=20, 16%) was the most common in those <6 months of age with SpO2<94% and developmental/surfactant disorders. We report for the first time that ChILD survivors improved multiple clinical parameters within 8–12 weeks of diagnosis. These data can inform family discussions and support clinical trial measurements.

scholarly journals The Relationship between AKI and CKD in Patients with Type 2 Diabetes: An Observational Cohort Study

2020 ◽  
Vol 32 (1) ◽  
pp. 138-150 ◽  
Author(s):  
Simona Hapca ◽  
Moneeza K. Siddiqui ◽  
Ryan S.Y. Kwan ◽  
Michelle Lim ◽  
Shona Matthew ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Cohort Study ◽  
Observational Studies ◽  
Observational Cohort Study ◽  
Patients With Diabetes ◽  
Observational Cohort ◽  
The Relationship ◽  
Egfr Slope

BackgroundThere are few observational studies evaluating the risk of AKI in people with type 2 diabetes, and even fewer simultaneously investigating AKI and CKD in this population. This limits understanding of the interplay between AKI and CKD in people with type 2 diabetes compared with the nondiabetic population.MethodsIn this retrospective, cohort study of participants with or without type 2 diabetes, we used electronic healthcare records to evaluate rates of AKI and various statistical methods to determine their relationship to CKD status and further renal function decline.ResultsWe followed the cohort of 16,700 participants (9417 with type 2 diabetes and 7283 controls without diabetes) for a median of 8.2 years. Those with diabetes were more likely than controls to develop AKI (48.6% versus 17.2%, respectively) and have preexisting CKD or CKD that developed during follow-up (46.3% versus 17.2%, respectively). In the absence of CKD, the AKI rate among people with diabetes was nearly five times that of controls (121.5 versus 24.6 per 1000 person-years). Among participants with CKD, AKI rate in people with diabetes was more than twice that of controls (384.8 versus 180.0 per 1000 person-years after CKD diagnostic date, and 109.3 versus 47.4 per 1000 person-years before CKD onset in those developing CKD after recruitment). Decline in eGFR slope before AKI episodes was steeper in people with diabetes versus controls. After AKI episodes, decline in eGFR slope became steeper in people without diabetes, but not among those with diabetes and preexisting CKD.ConclusionsPatients with diabetes have significantly higher rates of AKI compared with patients without diabetes, and this remains true for individuals with preexisting CKD.

scholarly journals Observational cohort study to investigate the unmet need and time waiting for referral for specialist opinion in adult asthma in England (UNTWIST asthma)

BMJ Open ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. e031740
Author(s):  
John D Blakey ◽  
Alicia Gayle ◽  
Mariel G Slater ◽  
Gareth H Jones ◽  
Michael Baldwin
Keyword(s):  
Cohort Study ◽  
Waiting Time ◽  
Unmet Need ◽  
Observational Cohort Study ◽  
Clinical Practice Research Datalink ◽  
High Dose ◽  
Specialist Referral ◽  
Number Of Patients ◽  
Observational Cohort

ObjectivesThis study aimed to estimate how many patients with asthma in England met the referral eligibility criteria using national asthma guidelines, identify what proportion were referred and determine the average waiting time to referral.DesignThis is an observational cohort study.Setting/Data sourcesRoutinely collected healthcare data were provided by Clinical Practice Research Datalink records and Hospital Episode Statistics records from January 2007 to December 2015.ParticipantsPatients with asthma aged 18–80 years participated in this study.Main outcome measuresEligibility for referral by the British Thoracic Society/Scottish Intercollegiate Guidelines Network (BTS/SIGN) 2016 guidelines, determined after a 3-month pharmacological therapy exposure assessment, was classed by either ‘high-dose therapies’, ‘continuous or frequent use of oral steroids’ or ‘incident eligibility’ during follow-up (continuous oral corticosteroids for more than 3 months, or ≥800 µg/day inhaled corticosteroids/long-acting β2-agonist (or three controllers) and ≥2 asthma attacks/year).ResultsFrom the final cohort (n=23293), 19837 patients were eligible for specialist referral during follow-up based on the BTS/SIGN guideline recommendations. Among eligible patients without any previously recorded referral, 4% were referred during follow-up, with a median waiting time of 880 days (IQR=1428 days) between eligibility and referral.ConclusionsA large number of patients with asthma were eligible for specialist referral, of which a small proportion were referred, and many experienced a long waiting time before referral. The results indicate a major unmet need in asthma referral, which is a potential source of preventable harm and are likely to have implications regarding how services are organised to address this unmet need.

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