External validation of the Dat'AIDS score: A risk score for predicting 5-year overall mortality in people living with HIV aged 60 years or older.

OBJECTIVE: To perform an external validation of the Dat'AIDS score for predicting 5-year overall mortality among people with HIV (PWH) aged 60 years or older. METHODS: This was a multi-centre prospective cohort study at all sites participating in the Swiss HIV Cohort Study (SHCS). We calculated the Dat'AIDS score in PWH aged 60 years or older at their first visit between 1 January 2015 and 1 January 2020. People living with HIV-2 and those whose Dat'AIDS score could not be calculated were excluded. Patients were followed until 1 January 2020. The primary endpoint was all-cause mortality. Vital status was collected throughout the study period. We obtained population and score descriptive statistics and assessed the score's discrimination and calibration. RESULTS: We included 2205 participants (82% male) of median [interquartile range (IQR)] age 62.0 (60.3-67.0) years, mostly with viraemia <50 copies/mL (92.7%). Median follow-up time was 15.9 years and median (IQR) CD4 cell count at enrolment was 586 (420-782) cells/µL. In all, 152 deaths were recorded during a total follow-up period of 7147 patient-years. The median (IQR) observed Dat'AIDS score was 3 (0-8). Discriminative capacities were good as the C-statistic was 0.73 (95% CI: 0.69-0.77) and consistent across all subgroups. Comparison of observed and expected survival probabilities showed good calibration. CONCLUSIONS: External validation of the Dat'AIDS score in patients aged 60 years or older showed that it could be a useful tool not only for research purposes, but also to identify older patients at a higher mortality risk and to tailor the most appropriate interventions.

Presentation, management, and outcomes of older compared to younger adults with hospital-acquired bloodstream infections in the intensive care unit: a multicenter cohort study.

PURPOSE: Older adults admitted to the intensive care unit (ICU) usually have fair baseline functional capacity, yet their age and frailty may compromise their management. We compared the characteristics and management of older (≥ 75 years) versus younger adults hospitalized in ICU with hospital-acquired bloodstream infection (HA-BSI). METHODS: Nested cohort study within the EUROBACT-2 database, a multinational prospective cohort study including adults (≥ 18 years) hospitalized in the ICU during 2019-2021. We compared older versus younger adults in terms of infection characteristics (clinical signs and symptoms, source, and microbiological data), management (imaging, source control, antimicrobial therapy), and outcomes (28-day mortality and hospital discharge). RESULTS: Among 2111 individuals hospitalized in 219 ICUs with HA-BSI, 563 (27%) were ≥ 75 years old. Compared to younger patients, these individuals had higher comorbidity score and lower functional capacity; presented more often with a pulmonary, urinary, or unknown HA-BSI source; and had lower heart rate, blood pressure and temperature at presentation. Pathogens and resistance rates were similar in both groups. Differences in management included mainly lower rates of effective source control achievement among aged individuals. Older adults also had significantly higher day-28 mortality (50% versus 34%, p < 0.001), and lower rates of discharge from hospital (12% versus 20%, p < 0.001) by this time. CONCLUSIONS: Older adults with HA-BSI hospitalized in ICU have different baseline characteristics and source of infection compared to younger patients. Management of older adults differs mainly by lower probability to achieve source control. This should be targeted to improve outcomes among older ICU patients.

Immune response to the recombinant herpes zoster vaccine in people living with HIV over 50 years of age compared to non-HIV age-/gender-matched controls (SHINGR'HIV): a multicenter, international, non-randomized clinical trial study protocol.

BACKGROUND: The burden of herpes zoster (shingles) virus and associated complications, such as post-herpetic neuralgia, is higher in older adults and has a significant impact on quality of life. The incidence of herpes zoster and post-herpetic neuralgia is increased in people living with HIV (PLWH) compared to an age-matched general population, including PLWH on long-term antiretroviral therapy (ART) with no detectable viremia and normal CD4 counts. PLWH - even on effective ART may- exhibit sustained immune dysfunction, as well as defects in cells involved in the response to vaccines. In the context of herpes zoster, it is therefore important to assess the immune response to varicella zoster virus vaccination in older PLWH and to determine whether it significantly differs to that of HIV-uninfected healthy adults or younger PLWH. We aim at bridging these knowledge gaps by conducting a multicentric, international, non-randomised clinical study (SHINGR'HIV) with prospective data collection after vaccination with an adjuvant recombinant zoster vaccine (RZV) in two distinct populations: in PLWH on long-term ART (> 10 years) over 50 years of and age/gender matched controls. METHODS: We will recruit participants from two large established HIV cohorts in Switzerland and in France in addition to age-/gender-matched HIV-uninfected controls. Participants will receive two doses of RZV two months apart. In depth-evaluation of the humoral, cellular, and innate immune responses and safety profile of the RZV will be performed to address the combined effect of aging and potential immune deficiencies due to chronic HIV infection. The primary study outcome will compare the geometric mean titer (GMT) of gE-specific total IgG measured 1 month after the second dose of RZV between different age groups of PLWH and between PLWH and age-/gender-matched HIV-uninfected controls. DISCUSSION: The SHINGR'HIV trial will provide robust data on the immunogenicity and safety profile of RZV in older PLWH to support vaccination guidelines in this population. TRIAL REGISTRATION: ClinicalTrials.gov NCT05575830. Registered on 12 October 2022. Eu Clinical Trial Register (EUCT number 2023-504482-23-00).

[Vaccination updates for the elderly]. / Mise à jour des vaccins chez les personnes âgées.

The number of elderly people is constantly increasing in Switzerland. This population is often at higher risk of infections and concomitant decompensation of underlying comorbidities, in particular cardiac or respiratory diseases. Vaccines are some of the most effective preventive measures for limiting morbidity and mortality related to some of those infections, such as influenza or shingles. In order to improve vaccination coverage, it is essential to inform the patients of the benefits of vaccination, and to plan a catch-up vaccination consultation. The goal of this article is to offer a practical guide for the general practitioner detailing vaccines for the elderly recommended in Switzerland.

Le nombre de personnes âgées est en constante augmentation en Suisse. Celles-ci sont souvent plus à risque de présenter des infections et de façon concomitante une décompensation de leurs comorbidités, notamment cardiaques et respiratoires. La vaccination est l'une des mesures préventives efficaces pour limiter la morbimortalité associée à certaines de ces infections, comme la grippe ou le zona. Afin d'améliorer la couverture vaccinale, il est primordial d'informer les patients sur les bénéfices de la vaccination et de prévoir une consultation dédiée à une mise à jour vaccinale. Le but de cet article est d'offrir un guide pratique pour le médecin de famille sur les différents vaccins recommandés chez la personne âgée.

Real-life experience with remdesivir for treatment of COVID-19 among older adults: a multicentre retrospective study.

INTRODUCTION: The effect of remdesivir on COVID-19 mortality remains conflicting. Elderly individuals are at risk for poor COVID-19 outcomes. We aimed to assess the effect of remdesivir on COVID-19 mortality among elderly individuals, using real-world data. METHODS: Retrospective multinational cohort of individuals aged ≥65 years, hospitalized with COVID-19 in six medical centres between January 2020 and May 2021. Associations with in-hospital mortality were evaluated using a multivariable logistic regression model with propensity score adjustment for remdesivir therapy and while implementing generalized estimating equations to control for centre effect. Sensitivity analysis was performed by stratification according to the degree of respiratory support. RESULTS: Of 3010 individuals included, 2788 individuals required either oxygen supplementation or non-invasive/invasive mechanical ventilation, 489 (16%) were treated with remdesivir, and 836 (28%) died. Median age was 77 (IQR 70-84) years and 42% were women. Remdesivir was the only therapeutic intervention associated with decreased mortality [adjusted OR (aOR) 0.49, 95% CI 0.37-0.66, P < 0.001]. This protective effect was shown for individuals requiring oxygen support and non-invasive mechanical ventilation, while no association was found among individuals necessitating invasive mechanical ventilation.Risk factors for mortality included invasive ventilation (aOR 5.18, 95% CI 2.46-10.91, P < 0.001), higher serum creatinine (aOR 1.25, 95% CI 1.09-1.43, P = 0.001) and dyspnoea (aOR 1.40, 95% CI 1.07-1.84, P = 0.015) on presentation, and other non-modifiable factors, such as comorbidities. CONCLUSIONS: Among elderly individuals hospitalized with COVID-19, remdesivir carries survival benefit for those with moderate to severe disease. Its role among individuals with critical illness should be further assessed.

New horizons in sepsis management in older patients.

Sepsis is a frequent disease in older people, characterised by an inappropriate systemic inflammatory response following an infection, leading to life-threatening organ dysfunctions. In the very old, sepsis is often difficult to diagnose, given the frequent atypical presentation. While there is no gold standard for the diagnosis of sepsis, new definitions published in 2016, aided by clinical-biological scores, namely Sequential Organ Failure Assessment (SOFA) and quick SOFA scores, allow earlier recognition of septic states at risk of poor outcome. The management of sepsis in itself differs little in older patients compared to younger subjects. However, the key question of whether or not to admit the patient to an intensive care setting has to be anticipated, depending on the sepsis severity but also on patient's comorbidities and wishes. The earliness of acute management in older subjects with decreased immune defences and physiological reserves is an essential prognostic element. The early control of comorbidities is the main plus value of the geriatrician in the acute and post-acute management of older patients with sepsis.

Effectiveness and safety of colistin among older adults: a systematic review and meta-analysis.

OBJECTIVES: Limited data are available to guide colistin use in older adults (>65 years old). We aimed to assess the effectiveness and safety of colistin in this population. METHODS: Systematic review and meta-analysis of original data from randomized control trials, cohort studies and case-control studies assessing colistin regimens with various comparisons for any infection. Original data were obtained from corresponding authors of original studies. The primary outcome was all-cause 1 month mortality; secondary outcomes included clinical and microbiological outcomes and adverse events, including acute kidney injury. Two independent reviewers screened citations, extracted data and assessed risk of bias. ORs with 95% CIs were pooled. RESULTS: We included 38 publications (41 comparisons) reporting 2857 elderly individuals: 29 studies compared a colistin-based regimen versus another regimen (comparison 1) and 10 compared colistin monotherapy versus colistin combination (comparison 2). No significant difference in 1 month mortality was demonstrated between colistin and comparator (comparison 1, OR 1.13, 95% CI 0.80-1.60; comparison 2, OR 0.99, 95% CI 0.78-1.27). Clinical failure was significantly more likely with colistin-based therapy versus comparator (OR 1.52, 95% CI 1.13-2.06). Acute kidney injury was also significantly more common with colistin-based combinations versus other drugs (OR 3.81, 95% CI 2.14-6.77). CONCLUSIONS: For older adults, colistin-based therapy resulted in no mortality difference, compared with other regimens, for any infection. Clinical failure and acute kidney injury were significantly more common with colistin-based regimens. Close renal function monitoring is needed while using colistin in older adults.

What have we learned from the first to the second wave of COVID-19 pandemic? An international survey from the ESCMID Study Group for Infection in the Elderly (ESGIE) group.

The purpose of this survey is to explore changes in the management of COVID-19 during the first versus the second wave, with particular emphasis on therapies, antibiotic prescriptions, and elderly care. An internet-based questionnaire survey was distributed to European Society of Clinical Microbiology and Infectious Diseases (ESCMID) members. Therapeutic approach to patients with mild-to-moderate (PiO2/FiO2 200-350) and severe (PiO2/FiO2 < 200) COVID-19, antibiotic use, and reasons for excluding patients from the intensive care unit (ICU) were investigated. A total of 463 from 21 countries participated in the study. Most representatives were infectious disease specialists (68.3%). During the second wave of pandemic, physicians abandoned the use of hydroxychloroquine, lopinavir/ritonavir, and azithromycin in favor of dexamethasone, low-molecular weight heparin (LMWH), and remdesivir in mild-to-moderate COVID-19. In critically ill patients, we detected an increased use of high-dose steroids (51%) and a decrease in tocilizumab use. The use of antibiotics at hospital admission decreased but remained high in the second wave. Age was reported to be a main consideration for exclusion of patients from ICU care by 25% of responders; a third reported that elderly were not candidates for ICU admission in their center. The decision to exclude patients from ICU care was based on the individual decision of an intensivist in 59.6% of cases. The approach of physicians to COVID-19 changed over time following evidence accumulation and guidelines. Antibiotic use at hospital admission and decision to exclude patients from ICU care remain critical aspects that should be better investigated and harmonized among clinicians.

Accuracy of a score predicting the presence of an atypical pathogen in hospitalized patients with moderately severe community-acquired pneumonia.

BACKGROUND: Atypical pathogens (AP), present in some patients with community-acquired pneumonia (CAP), are intrinsically resistant to betalactam drugs, the mainstay of empirical antibiotic treatment. Adding antibiotic coverage for AP increases the risk of adverse effects and antimicrobial selection pressure, while withholding such coverage may worsen the prognosis if an AP is causative. A clinical model predicting the presence of AP would allow targeting atypical coverage for patients most likely to benefit. METHODS: This is a secondary analysis of a multicentric randomized controlled trial that included 580 adults patients hospitalized for CAP. A predictive score was built using independent predictive factors for AP identified through multivariate analysis. Accuracy of the score was assessed using area under the receiver operating curve (AUROC), sensitivity, and specificity. RESULTS: Prevalence of AP was 5.3%. Age < 75 years (OR 2.7, 95% CI 1.2-6.2), heart failure (OR 2.6, 95% CI 1.1-6.1), absence of chest pain (OR 3.0, 95% CI 1.1-8.2), natremia < 135 mmol/L (OR 3.0, 95% CI 1.4-6.6) and contracting the disease in autumn (OR 2.7, 95% CI 1.3-5.9) were independently associated with AP. A predictive score using these factors had an AUROC of 0.78 (95% CI 0.71-0.85). A score of 0 or 1 (present in 33% of patients) had 100% sensitivity and 35% specificity. CONCLUSION: Use of a score built on easily obtained clinical and laboratory data would allow safe withholding of atypical antibiotic coverage in a significant number of patients, with an expected positive impact on bacterial resistance and drug adverse effects. TRIAL REGISTRATION: NCT00818610.

[Specificities of SARS-CoV-2 infection in elderly patients]. / Spécificités de l'infection à SARS-CoV-2 chez les patients âgés.

COVID-19 has strongly impacted the elderly population with a particularly high mortality rate due to several reasons: sometimes difficult and delayed diagnosis, multimorbidity, immunosenescence, frailty, which seems to be a better prognostic marker than age. Treatment includes both therapies specifically directed against SARS CoV-2 (monoclonal antibodies, systemic corticosteroids, tocilizumab, remdesivir) and symptomatic and palliative treatments. Vaccination, especially the booster, is essential to reduce the risk of infection and severe forms. The emergence of variants is a challenge because of their impact on vaccine and treatment efficacy. Specific studies in the elderly are needed to improve their management.

Le Covid-19 a fortement impacté la population âgée avec un taux de mortalité particulièrement élevé dû à plusieurs raisons: diag nostic parfois difficile et retardé, multimorbidité, immunosénescence, fragilité, qui semble d'ailleurs être un meilleur marqueur pronostique que l'âge. Le traitement inclut autant des thérapies spécifiquement dirigées contre le SARS CoV-2 (anticorps monoclonaux, corticothérapie systémique, tocilizumab, remdésivir) que des traitements symptomatiques et palliatifs. La vaccination, notamment le rappel, est primordiale pour diminuer le risque infectieux et les formes graves. L'apparition de variants représente un défi en raison de leur impact sur l'efficacité du vaccin et des traitements. Des études réalisées spécifiquement chez les sujets âgés sont nécessaires pour améliorer leur prise en charge.

[Dilated cardiomyopathy: a toxic cause?] / Cardiomyopathies dilatées d'origine toxique.

Dilated cardiomyopathy is defined by the presence of left ventricular dilatation and contractile dysfunction in the absence of abnormal loading conditions and severe coronary artery disease. Once dilated cardiomyopathy is discovered, a careful and detailed history with laboratory tests may reveal a potential toxic cause. In this article, we present the case of a patient with suspected toxic dilated cardiomyopathy, and then discuss the common causes and treatment of toxic dilated cardiomyopathy.

La cardiomyopathie dilatée est définie par la présence d'une dilatation ventriculaire gauche et d'un dysfonctionnement contractile en l'absence de conditions de charge anormales et de coronaropathie sévère. Une fois qu'une cardiomyopathie dilatée est découverte, une anamnèse minutieuse et détaillée associée à des tests de laboratoire exhaustifs peut révéler une cause toxique potentielle. Dans cet article, nous présentons le cas d'une patiente avec suspicion de cardiomyopathie dilatée d'origine toxique, puis discutons des causes fréquentes et du traitement de la cardiomyopathie dilatée d'origine toxique.

[An infectious diseases ward dedicated to elderly patients: why and how?] / Unité d'infectiologie gériatrique : pourquoi et comment ?

The management of infections in the elderly requires medical and nursing expertise with a standardized global geriatric evaluation. We present here an original and pioneering unit in Switzerland, dedicated to polymorbid and complex elderly patients hospitalized for an acute infection and who will benefit from joint management by an interdisciplinary team including a geriatrician, an infectious diseases specialist and a pharmacogeriatrician. The Hôpital des Trois-Chêne, which has geriatric emergencies, intermediate care beds, SOMADEM (somatic dementia) and UGIMP (medico-psychiatric) programs adapted to this population, seems to be the ideal place to host this unit. The teams will benefit from theoretical and practical training associated with field coaching.

La prise en charge des infections de la personne âgée nécessite une expertise médico-soignante avec une évaluation gériatrique globale standardisée. Nous présentons ici une unité originale et pionnière en Suisse, dédiée aux patients âgés polymorbides et complexes hospitalisés pour infection aiguë. Ils bénéficieront d'une prise en charge conjointe par une équipe interdisciplinaire comprenant entre autres le gériatre, l'infectiologue et le pharmacogériatre. L'hôpital des Trois-Chêne, qui possède des urgences gériatriques, des lits de soins intermédiaires, les programmes SOMADEM (somatique démence) et UGIMP (médico-psychiatrique) adaptés à cette population, semble le lieu idéal pour accueillir cette unité. Les équipes bénéficieront d'une formation théorique et pratique associée à du coaching de terrain.

Pneumonia prevention in the elderly patients: the other sides.

Pneumonia is one of the leading causes of morbidity and mortality from infection in elderly patients. The increased frequency of pneumonia among elderly subjects can be explained by the physiological changes linked to the progressive aging of the respiratory tree and the diminished immunological response. A spiral of event leads to frailty, infection and possible death; preventing pneumonia consists of controlling the risk factors. Dysphagia, which is associated with malnutrition and dehydration, is recognized as one of the major pathophysiological mechanism leading to pneumonia and its screening is crucial for the pneumonia risk assessment. The impairment in the oropharyngeal reflexes results in stagnation of foreign material in the lateral cavities of the pharynx which may then get aspirated repeatedly in the lungs and cause pneumonia. Pneumonia prevention starts with lifestyle modifications such as alcohol and tobacco cessation. A careful review of the risk-benefit of the prescribed medication is critical and adaptation may be required in elders with multiple morbidities. Respiratory physiotherapy and mobilization improve the functional status and hence may help reduce the risk of pneumonia. Maintaining teeth and masticatory efficiency is important if malnutrition and its consequences are to be avoided. Daily oral hygiene and regular professional removal of oral biofilm can prevent the onset of periodontitis and can avoid an oral environment favoring the colonization of respiratory pathogens than can then be aspirated into the lungs.

Oral care knowledge, attitude and practice: Caregivers' survey and observation.

OBJECTIVES: This study aims to assess caregivers' knowledge, perception and perceived barriers as well as their daily usual practice concerning oral care provision in a geriatric hospital. METHODS: A semi-structured questionnaire was developed and administered to caregivers in a geriatric ward. Furthermore, oral care delivery to dependent and independent patients was clinically observed. RESULTS: One hundred and fifty-two caregivers (60% nurses, 40% nursing aids) completed the survey (78% response rate). Clinical oral care was observed in 97 inpatients. Observations revealed that brushing was done in 94% of opportunities in independent patients but in only 55% of dependent patients. This corresponded to the frequency indicated in the questionnaire for independent elders (97%, n.s.), whereas it was significantly different for dependent elders (89%, P < .001). 95% of caregivers stated in the questionnaire never verifying self-administered oral care, whereas 12.3% were actually observed verifying intraorally its efficiency (P = .07 chi-squared test). 71% of the respondents stated storing the prostheses dry, and 8% stated that they reinserted it after cleaning. Caregivers' observation revealed that 35.1% of prostheses were reinserted in the mouth, indicating a significantly higher rate than in the questionnaire (P < .05). Respondents felt that their training to perform oral hygiene measures was suboptimal (VAS 48 ± 34.4). Patients verbally refusing oral care were stated as a barrier by 14% of respondents and were witnessed in 15.6% of observation opportunities (n.s). CONCLUSION: Various measures, such as hospital health policy, improved logistics or advanced hands-on training, might help to converge the clinical practice towards the theoretical knowledge.

[Use of point-of-care ultrasonography (POCUS) in patients with suspected bacterial infection]. / Intérêt de l'échographie ciblée dans la suspicion d'infection bactérienne.

Severe bacterial infection requires prompt diagnosis and treatment. Point-of-care ultrasonography (POCUS) can significantly reduce time to diagnosis. In this article we discuss the diagnostic performance of POCUS through the illustration of four common infectious clinical situations: pneumonia, complicated pleural effusion, cholecystitis and obstructive pyelonephritis.

L'infection bactérienne sévère nécessite un diagnostic et un traitement rapides. L'échographie ciblée, aussi appelée Point-of-care ultrasonography (POCUS), permet de réduire sensiblement les délais jusqu'au diagnostic. Dans cet article, nous discutons des performances diagnostiques de l'échographie ciblée à travers l'illustration de quatre situations cliniques fréquentes de problématiques infectieuses : la pneumonie, l'épanchement parapneumonique compliqué, la cholécystite et la pyélonéphrite obstructive.

Statin-induced autoimmune necrotizing myopathy with pharyngeal muscles involvement.

Statins are widely prescribed in the treatment of hypercholesterolemia. While their efficacy in the secondary prevention of vascular events is proven, their safety profile in older patients with multiple co-morbidities and polypharmacy remains questionable. Although rare, antihydroxy-3-methylglutaryl-coenzyme A reductase (anti-HMGCR) myopathy is a severe adverse effect of statins, manifesting as myalgias, proximal muscle weakness, muscle cell necrosis and rhabdomyolysis. We report an uncommon case of an autopsy-proven anti-HMGCR necrotising myopathy predominately affecting pharyngeal muscles in an older patient, leading to dysphagia, pneumonia and death within 3 weeks from onset. Clinicians should screen for dysphagia in any patient with suspected anti-HMGCR myopathy, order an anti-HMGCR antibody titre and consider prompt immunosupressive therapy.

A systematic review assessing the under-representation of elderly adults in COVID-19 trials.

BACKGROUND: Coronavirus disease (COVID-19) has caused a pandemic threatening millions of people worldwide. Yet studies specifically assessing the geriatric population are scarce. We aimed to examine the participation of elderly patients in therapeutic or prophylactic trials on COVID-19. METHODS: In this review, randomized controlled trials (RCTs; n = 12) comparing therapeutic or prophylactic interventions registered on preprint repositories and/or published since December 2019 were analyzed. We searched in PubMed, leading journals websites, and preprint repositories for RCTs and large observational studies. We aimed to describe the age of included patients, the presence of an upper age limit and of adjusted analyses on age, any exclusion criteria that could limit participation of elderly adults such as comorbidities, cognitive impairment, limitation of life expectancy; and the assessment of long-term outcomes such as the need of rehabilitation or institutionalization. Mean participant ages were reported and compared with observational studies. RESULTS: Twelve RCTs assessing drug therapy for COVID-19 were included. Mean age of patients included in RCTs was 56.3 years. An upper age limit was applied in three published trials (25%) and in 200/650 (31%) trials registered at clinicaltrials.gov . One trial reported a subgroup analysis in patients ≥65. Patients were excluded for liver-function abnormalities in eight trials, renal disease in six, cardiac disease or risk of torsade de pointes in five, and four for cognitive or mental criteria, which are frequent comorbidities in the oldest patients. Only three trials allowed a family member to provide consent. Patients enrolled in RCTs were on average 20 years younger than those included in large (n ≥ 1000) observational studies. Seven studies had as their primary outcome a clinical endpoint, but none reported cognitive, functional or quality of life outcomes or need for rehabilitation or long-term care facility placement. CONCLUSIONS: Elderly patients are clearly underrepresented in RCTs, although they comprise the population hardest hit by the COVID-19 pandemic. Long-term outcomes such as the need of rehabilitation or institutionalization were not reported. Future investigations should target specifically this vulnerable population.

Effect of C-Reactive Protein-Guided Antibiotic Treatment Duration, 7-Day Treatment, or 14-Day Treatment on 30-Day Clinical Failure Rate in Patients With Uncomplicated Gram-Negative Bacteremia: A Randomized Clinical Trial.

Importance: Antibiotic overuse drives antibiotic resistance. Gram-negative bacteremia is a common infection that results in substantial antibiotic use. Objective: To compare the clinical effectiveness of C-reactive protein (CRP)-guided, 7-day, and 14-day antibiotic durations 30, 60, and 90 days after treatment initiation. Design, Setting, and Participants: Multicenter, noninferiority, point-of-care randomized clinical trial including adults hospitalized with gram-negative bacteremia conducted in 3 Swiss tertiary care hospitals between April 2017 and May 2019, with follow-up until August 2019. Patients and physicians were blinded between randomization and antibiotic discontinuation. Adults (aged ≥18 years) were eligible for randomization on day 5 (±1 d) of microbiologically efficacious therapy for fermenting, gram-negative bacteria in blood culture(s) if they were afebrile for 24 hours without evidence for complicated infection (eg, abscess) or severe immunosuppression. Intervention: Randomization in a 1:1:1 ratio to an individualized CRP-guided antibiotic treatment duration (discontinuation once CRP declined by 75% from peak; n = 170), fixed 7-day treatment duration (n = 169), or fixed 14-day treatment duration (n = 165). Main Outcomes and Measures: The primary outcome was the clinical failure rate at day 30, defined as the presence of at least 1 of the following, with a non-inferiority margin of 10%: recurrent bacteremia, local suppurative complication, distant complication (growth of the same organism causing the initial bacteremia), restarting gram-negative-directed antibiotic therapy due to clinical worsening suspected to be due to the initial organism, or death due to any cause. Secondary outcomes included the clinical failure rate on day 90 of follow-up. Results: Among 504 patients randomized (median [interquartile range] age, 79 [68-86] years; 306 of 503 [61%] were women), 493 (98%) completed 30-day follow-up and 448 (89%) completed 90-day follow-up. Median antibiotic duration in the CRP group was 7 (interquartile range, 6-10; range, 5-28) days; 34 of the 164 patients (21%) who completed the 30-day follow-up had protocol violations related to treatment assignment. The primary outcome occurred in 4 of 164 (2.4%) patients in the CRP group, 11 of 166 (6.6%) in the 7-day group, and 9 of 163 (5.5%) in the 14-day group (difference in CRP vs 14-day group, -3.1% [1-sided 97.5% CI, -∞ to 1.1]; P < .001; difference in 7-day vs 14-day group, 1.1% [1-sided 97.5% CI, -∞ to 6.3]; P < .001). By day 90, clinical failure occurred in 10 of 143 patients (7.0%) in the CRP group, 16 of 151 (10.6%) in the 7-day group, and 16 of 153 (10.5%) in the 14-day group. Conclusions and Relevance: Among adults with uncomplicated gram-negative bacteremia, 30-day rates of clinical failure for CRP-guided antibiotic treatment duration and fixed 7-day treatment were noninferior to fixed 14-day treatment. However, interpretation is limited by the large noninferiority margin compared with the low observed event rate, as well as low adherence and wide range of treatment durations in the CRP-guided group. Trial Registration: ClinicalTrials.gov Identifier: NCT03101072.

[Issues and challenges related to COVID-19 in acute geriatric care: lessons learned from the Geneva experience]. / Enjeux et défis du Covid-19 en gériatrie aiguë: leçons tirées de l'expérience genevoise.

The older patients have been the most affected by the SARS-CoV-2 pandemic. In addition, this infection has been responsible for high mortality rate in this population. In this article we wanted to describe the clinical findings we encountered in older people with COVID-19 and share some of the issues and challenges we faced during the COVID-19 pandemic.

Les personnes âgées ont été les plus touchées par la pandémie de SARS-CoV-2. De plus, cette infection a été responsable d'une mortalité élevée au sein de cette population. Dans cet article, nous avons souhaité décrire les particularités cliniques du Covid-19 que nous avons constatées chez les patients âgés et faire part de plusieurs enjeux et défis auxquels nous avons été confrontés au cours de la pandémie de Covid-19.

Computed tomography scan contribution to the diagnosis of community-acquired pneumonia.

PURPOSE OF REVIEW: Pneumonia is a frequent disease mainly affecting older and multimorbid patients. Symptoms and signs lack sensitivity and specificity, and chest X-ray has poor accuracy. Hence, an initial diagnosis of pneumonia has limited predictive value for the presence of pneumonia. Overdiagnosis of pneumonia leads to inappropriate antibiotic use and may delay the appropriate management of mimicking diseases. Alternative imaging strategies including computed tomography (CT)-scan or lung ultrasonography may improve the diagnosis of pneumonia. We review the recent evidence and perspectives regarding their contribution to the diagnosis and management of patients with suspected pneumonia. RECENT FINDINGS: Two studies assessed the diagnostic accuracy of CT-scan in emergency department or hospitalized patients suspected of pneumonia. CT-scan led to a net reclassification improvement of 8 and 18% of patients, and was particularly helpful to rule out the diagnosis, allowing a lowering of the number of inappropriate antibiotic prescriptions. SUMMARY: CT-scan reduces overdiagnosis of pneumonia and allows a better identification of alternative diagnoses. The impact on clinical outcomes of a strategy incorporating CT-scan for patients suspected of pneumonia should be evaluated, along with its cost-effectiveness.