PKPierre Kalfon

Pierre Kalfon

*This is an algorithmically generated author record based on publicly available information.

Pierre Kalfon has a total of 139 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Open Access

    Correction: Impact of a Postintensive Care Unit Multidisciplinary Follow-up on the Quality of Life (SUIVI-REA): Protocol for a Multicenter Randomized Controlled Trial

    by Diane Friedman, Lamiae Grimaldi, Alain Cariou, Philippe Aegerter, Stéphane Gaudry, Abdel Ben Salah, Haikel Oueslati, Bruno Megarbane, Nicolas Meunier-Beillard, Jean-Pierre Quenot, et al.

    [This corrects the article DOI: 10.2196/30496.].

  • Open Access

    Correction: Impact of a Postintensive Care Unit Multidisciplinary Follow-up on the Quality of Life (SUIVI-REA): Protocol for a Multicenter Randomized Controlled Trial (Preprint)

    by Diane Friedman, Lamiae Grimaldi, Alain Cariou, Philippe Aegerter, Stéphane Gaudry, Abdel Ben Salah, Haikel Oueslati, Bruno Megarbane, Nicolas Meunier-Beillard, Jean-Pierre Quenot, et al.

    Journal of Medical Internet Research - International Scientific Journal for Medical Research, Information and Communication on the Internet #Preprint #PeerReviewMe: Warning: This is a unreviewed preprint. Readers are warned that the document has not been peer-reviewed by expert/patient reviewers or an academic editor, may contain misleading claims, and is likely to undergo changes before final publication, if accepted, or may have been rejected/withdrawn. Readers with interest and expertise are encouraged to sign up as peer-reviewer, if the paper is within an open peer-review period. Please cite this preprint only for review purposes or for grant applications and CVs (if you are the author).

  • Open Access

    Intensive glucose control in critically ill adults: a protocol for a systematic review and individual patient data meta-analysis

    by Derick Adigbli, Li Yang, Naomi Hammond, Djillali Annane, Yaseen Arabi, Federico Bilotta, Julien Bohã©, Frank Martin Brunkhorst, Alexandre Biasi Cavalcanti, Deborah Cook, et al.

    The optimal target for blood glucose concentration in critically ill patients is unclear. We will perform a systematic review and meta-analysis with aggregated and individual patient data from randomized controlled trials, comparing intensive glucose control with liberal glucose control in critically ill adults. MEDLINE®, Embase, the Cochrane Central Register of Clinical Trials, and clinical trials registries (World Health Organization, clinical trials.gov). The authors of eligible trials will be invited to provide individual patient data. Published trial-level data from eligible trials that are not at high risk of bias will be included in an aggregated data meta-analysis if individual patient data are not available. Inclusion criteria: randomized controlled trials that recruited adult patients, targeting a blood glucose of ≤ 120mg/dL (≤ 6.6mmol/L) compared to a higher blood glucose concentration target using intravenous insulin in both groups. Excluded studies: those with an upper limit blood glucose target in the intervention group of > 120mg/dL (> 6.6mmol/L), or where intensive glucose control was only performed in the intraoperative period, and those where loss to follow-up exceeded 10% by hospital discharge. In-hospital mortality during index hospital admission. Secondary endpoints: mortality and survival at other timepoints, duration of invasive mechanical ventilation, vasoactive agents, and renal replacement therapy. A random effect Bayesian meta-analysis and hierarchical Bayesian models for individual patient data will be used. This systematic review with aggregate and individual patient data will address the clinical question, ‘what is the best blood glucose target for critically ill patients overall?’ Protocol version 0.4 - 06/26/2023 PROSPERO registration: CRD42021278869


  • Open Access

    Impact of a Postintensive Care Unit Multidisciplinary Follow-up on the Quality of Life (SUIVI-REA): Protocol for a Multicenter Randomized Controlled Trial

    by Diane Friedman, Lamiae Grimaldi, Alain Cariou, Philippe Aegerter, Stéphane Gaudry, Abdel Ben Salah, Haikel Oueslati, Bruno Megarbane, Nicolas Meunier-Beillard, Jean-Pierre Quenot, et al.

    Background: Critically ill patients are at risk of developing a postintensive care syndrome (PICS), which is characterized by physical, psychological, and cognitive impairments and which dramatically impacts the patient’s quality of life (QoL). No intervention has been shown to improve QoL. We hypothesized that a medical, psychological, and social follow-up would improve QoL by mitigating the PICS. Objective: This multicenter, randomized controlled trial (SUIVI-REA) aims to compare a multidisciplinary follow-up with a standard postintensive care unit (ICU) follow-up. Methods: Patients were randomized to the control or intervention arm. In the intervention arm, multidisciplinary follow-up involved medical, psychological, and social evaluation at ICU discharge and at 3, 6, and 12 months thereafter. In the placebo group, patients were seen only at 12 months by the multidisciplinary team. Baseline characteristics at ICU discharge were collected for all patients. The primary outcome was QoL at 1 year, assessed using the Euro Quality of Life-5 dimensions (EQ5D). Secondary outcomes were mortality, cognitive, psychological, and functional status; social and professional reintegration; and the rate of rehospitalization and outpatient consultations at 1 year. Results: The study was funded by the Ministry of Health in June 2010. It was approved by the Ethics Committee on July 8, 2011. The first and last patient were randomized on December 20, 2012, and September 1, 2017, respectively. A total of 546 patients were enrolled across 11 ICUs. At present, data management is ongoing, and all parties involved in the trial remain blinded. Conclusions: The SUVI-REA multicenter randomized controlled trial aims to assess whether a post-ICU multidisciplinary follow-up improves QoL at 1 year. Trial Registration: Clinicaltrials.gov NCT01796509; https://clinicaltrials.gov/ct2/show/NCT01796509 International Registered Report Identifier (IRRID): DERR1-10.2196/30496


  • Open Access

    Impact of a Postintensive Care Unit Multidisciplinary Follow-up on the Quality of Life (SUIVI-REA): Protocol for a Multicenter Randomized Controlled Trial (Preprint)

    by Diane Friedman, Lamiae Grimaldi, Alain Cariou, Philippe Aegerter, Stéphane Gaudry, Abdel Ben Salah, Haikel Oueslati, Bruno Megarbane, Nicolas Meunier-Beillard, Jean-Pierre Quenot, et al.

    BACKGROUND Critically ill patients are at risk of developing a postintensive care syndrome (PICS), which is characterized by physical, psychological, and cognitive impairments and which dramatically impacts the patient’s quality of life (QoL). No intervention has been shown to improve QoL. We hypothesized that a medical, psychological, and social follow-up would improve QoL by mitigating the PICS. OBJECTIVE This multicenter, randomized controlled trial (SUIVI-REA) aims to compare a multidisciplinary follow-up with a standard postintensive care unit (ICU) follow-up. METHODS Patients were randomized to the control or intervention arm. In the intervention arm, multidisciplinary follow-up involved medical, psychological, and social evaluation at ICU discharge and at 3, 6, and 12 months thereafter. In the placebo group, patients were seen only at 12 months by the multidisciplinary team. Baseline characteristics at ICU discharge were collected for all patients. The primary outcome was QoL at 1 year, assessed using the Euro Quality of Life-5 dimensions (EQ5D). Secondary outcomes were mortality, cognitive, psychological, and functional status; social and professional reintegration; and the rate of rehospitalization and outpatient consultations at 1 year. RESULTS The study was funded by the Ministry of Health in June 2010. It was approved by the Ethics Committee on July 8, 2011. The first and last patient were randomized on December 20, 2012, and September 1, 2017, respectively. A total of 546 patients were enrolled across 11 ICUs. At present, data management is ongoing, and all parties involved in the trial remain blinded. CONCLUSIONS The SUVI-REA multicenter randomized controlled trial aims to assess whether a post-ICU multidisciplinary follow-up improves QoL at 1 year. CLINICALTRIAL Clinicaltrials.gov NCT01796509; https://clinicaltrials.gov/ct2/show/NCT01796509 INTERNATIONAL REGISTERED REPORT DERR1-10.2196/30496

  • Open Access

    Risk factors and events in the adult intensive care unit associated with pain as self-reported at the end of the intensive care unit stay

    by Pierre Kalfon, Mohamed Boucekine, Philippe Estagnasie, Marie-Agnès Geantot, Audrey Berric, Georges Simon, Bernard Floccard, Thomas Signouret, Mélanie Fromentin, Martine Nyunga, et al.

    Background: The short-term and long-term consequences of the most frequent painful procedures performed in the ICU are unclear. This study aimed to identify the risk factors associated with pain-related discomfort perceived by critically ill patients during the whole ICU stay as self-reported by patients at the end of their ICU stay.Methods: The study involved 34 ICUs. Adult patients who survived an ICU stay of 3 calendar days or more were eligible for inclusion. Discomforts, including the pain-related discomfort, were assessed using the French 18-item questionnaire on discomfort in ICU patients, the “Inconforts des Patients de REAnimation” (IPREA). Patients scored each item from 0 (minimal discomfort) to 10 (maximal discomfort). Associations between patient characteristics at ICU admission, life support therapies and main potentially painful procedures performed during the ICU stay and pain-related discomfort scores assessed at the end of the ICU stay were analyzed.Results: Patients with complete IPREA questionnaires (n = 2130) were included. The median pain-related discomfort score was 3 (IQR 0–5). From the univariate analysis, pain-related discomfort scores were negatively correlated with age and positively correlated with ICU stay duration; surgical patients reported significant higher pain-related discomfort scores than medical patients; chest drain insertion, chest drain removal, use of bladder catheter, central venous catheter (CVC) insertion, complex dressing change, and intra-hospital transport were associated with pain-related discomfort scores. From the multivariate analyses using generalized estimating equations models, only age, chest drain removal, use of a bladder catheter, CVC insertion, and intra-hospital transport were the main risk factors associated with pain-related discomfort scores.Conclusion: Patients who underwent chest drain removal, bladder catheter, CVC insertion, and intra-hospital transport during their ICU stay reported higher pain-related discomfort scores (with respect to the whole ICU stay and assessed at the end of their ICU stay) than patients who did not experience these events. This study may pave the way for further targeted studies aiming at investigating a causal link between these common procedures in the ICU and adult critically ill patients’ perceptions of their ICU stay regarding recalled pain.Trial Registration: Clinicaltrials.gov Identifier NCT02442934, retrospectively registered on May 13, 2015


  • Tailored multicomponent program for discomfort reduction in critically ill patients may decrease post-traumatic stress disorder in general ICU survivors at 1 year

    by the IPREA-AQVAR Study Group, Pierre Kalfon, Marine Alessandrini, Mohamed Boucekine, Stéphanie Renoult, Marie-Agnès Geantot, Stéphanie Deparis-Dusautois, Audrey Berric, Olivier Collange, Bernard Floccard, et al.

    Purpose Reducing discomfort in the intensive care unit (ICU) should have a positive effect on long-term outcomes. This study assessed whether a tailored multicomponent program for discomfort reduction was effective in reducing post-traumatic stress disorder (PTSD) symptoms at 1 year in general ICU survivors. Methods This study is a prospective observational comparative effectiveness cohort study involving 30 ICUs. It was an extension of the IPREA3 study, a cluster-randomized controlled trial designed to assess the efficacy of a tailored multicomponent program to reduce discomfort in critically ill patients. The program included assessment of ICU-related self-perceived discomforts, immediate and monthly feedback to the healthcare team, and site-specific tailored interventions. The exposure was the implementation of this program. The eligible patients were exposed versus unexposed general adult ICU survivors. The prevalence of substantial PTSD symptoms at 1 year was assessed based on the Impact of Event Scale–Revised (IES-R). Results Of the 1537 ICU survivors included in the study, 475 unexposed patients and 344 exposed patients had follow-up data at 1 year: 57 (12.0%) and 21 (6.1%) presented with PTSD at 1 year, respectively (p = 0.004). Considering the clustering and after adjusting for age, gender, McCabe classification, and ICU-related self-perceived overall discomfort score, exposed patients were significantly less likely than unexposed patients to have substantial PTSD symptoms at 1 year (p = 0.015). Conclusions Implementation of a tailored multicomponent program in the ICU that has proved to be effective for reducing self-perceived discomfort in general adult ICU survivors also reduced the prevalence of substantial PTSD symptoms at 1 year. Trial registration ClinicalTrials.gov identifier NCT02762409.


  • A tailored multicomponent program to reduce discomfort in critically ill patients: a cluster-randomized controlled trial

    by Pierre Kalfon, Karine Baumstarck, Philippe Estagnasie, Marie-Agnès Geantot, Audrey Berric, Georges Simon, Bernard Floccard, Thomas Signouret, Mohamed Boucekine, Mélanie Fromentin, et al.

    Critically ill patients are exposed to stressful conditions and experience several discomforts. The primary objective was to assess whether a tailored multicomponent program is effective for reducing self-perceived discomfort.


  • Open Access

    Reduction of self-perceived discomforts in critically ill patients in French intensive care units: study protocol for a cluster-randomized controlled trial

    by Pierre Kalfon, Olivier Mimoz, Anderson Loundou, Marie-Agnès Geantot, Nathalie Revel, Isabelle Villard, Julien Amour, Elie Azoulay, Maïté Garrouste-Orgeas, Claude Martin, et al.

    It is now well documented that critically ill patients are exposed to stressful conditions and experience discomforts from multiple sources. Improved identification of the discomforts of patients in intensive care units (ICUs) may have implications for managing their care, including consideration of ethical issues, and may assist clinicians in choosing the most appropriate interventions. The primary objective of this study was to assess the effectiveness of a multicomponent program of discomfort reduction in critically ill patients. The secondary objectives were to assess the sustainability of the impact of the program and the potential seasonality effect. We conducted a multicenter, cluster-randomized, controlled, single (patient)-blind study involving 34 French adult ICUs. The experimental intervention was a 6-month period during which the multicomponent program was implemented in the ICU and included the following steps: identification of discomforts, immediate feedback to the healthcare team, and implementation of targeted interventions. The control intervention was a 6-month period during which any program was implemented. The primary endpoint was the monthly overall score of self-reported discomfort from the French questionnaire on discomforts in ICU patients (IPREA). The secondary endpoints were the scores of the discomfort items of IPREA. The sample size was 660 individuals to obtain 80 % power to detect a 25 % difference in the overall discomfort score of IPREA between the two groups (design effect: 2.9). The results of this cluster-randomized controlled study are expected to confirm that a multicomponent program of discomfort reduction may be a new strategy in the management of care for critically ill patients. ClinicalTrials.gov NCT02442934 , registered 11 May 2015.


  • Open Access

    Severe and multiple hypoglycemic episodes are associated with increased risk of death in ICU patients

    by Pierre Kalfon, Yannick Le Manach, Carole Ichai, Nicolas Bréchot, Raphaël Cinotti, Pierre-François Dequin, Béatrice Riu-Poulenc, Philippe Montravers, Djilalli Annane, Hervé Dupont, et al.

    Introduction: In a randomized controlled trial comparing tight glucose control with a computerized decision support system and conventional protocols (post hoc analysis), we tested the hypothesis that hypoglycemia is associated with a poor outcome, even when controlling for initial severity. Methods: We looked for moderate (2.2 to 3.3 mmol/L) and severe (−5 digit with no replacement). Results: A total of 2,601 patients were analyzed and divided into three groups: no hypoglycemia (n =1,474), moderate hypoglycemia (n =874, 34%) and severe hypoglycemia (n =253, 10%). Patients with moderate or severe hypoglycemia had a poorer prognosis, as shown by a higher mortality rate (36% and 54%, respectively, vs. 28%) and decreased number of treatment-free days. In the multivariable analysis, severe (odds ratio (OR), 1.50; 95% CI, 1.36 to 1.56; P =0.043) and multiple hypoglycemic events (OR, 1.76, 95% CI, 1.31 to 3.37; P P P =0.029) and multiple hypoglycemic events (46% vs. 32%, P <0.001) had a higher 90-day mortality. Conclusion: In a large cohort of ICU patients, severe hypoglycemia and multiple hypoglycemic events were associated with increased 90-day mortality. Trial registration: Clinicaltrials.gov Identifier: NCT01002482. Registered 26 October 2009.