Outcomes after acute myocardial infarction in HIV-infected patients: analysis of data from a French nationwide hospital medical information database.

BACKGROUND: We aimed to assess in-hospital case fatality and 1-year prognosis in HIV-infected patients with acute myocardial infarction. METHODS AND RESULTS: From the PMSI (Program de Medicalisation des Systèmes d'informatique) database, data from 277 303 consecutive acute myocardial infarction patients hospitalized from January 1, 2005, to December 31, 2009, were analyzed. Surviving patients were followed up for 1 year after discharge. HIV-infected patients were compared with uninfected patients. Among the cohort, HIV-infected patients (n=608) accounted for 0.22%. All-cause hospital and 1-year mortality rates were lower in the HIV-infected group than in uninfected patients (3.1% versus 8.1% [P<0.001] and 1.4% versus 5.5% [P<0.001], respectively). From the database, we then analyzed a cohort derived from a matching procedure, with 1 HIV patient matched with 2 patients without HIV, based on age and sex (n=1824). Ischemic cardiomyopathy was more frequent in the HIV group (7.6% versus 4.2%, P=0.003). Hospitalization and 1-year mortality rates were similar in the 2 groups (3.1% versus 2.1% [P=0.168] and 1.4% versus 1.7% [P=0.642], respectively). However, at 12 months, hospitalizations for episodes of heart failure were significantly more frequent in HIV-infected than in uninfected patients (3.3% versus 1.4%, respectively; P=0.020). HIV infection, diabetes mellitus, history of ischemic cardiomyopathy, and undergoing percutaneous coronary intervention were associated in univariate analysis with occurrence of heart failure. By multivariable analysis, HIV infection (odds ratio 2.82, 95% confidence interval 1.32-6.01), diabetes mellitus, and undergoing percutaneous coronary intervention remained independent predictors of heart failure. CONCLUSIONS: The present study demonstrates that after acute myocardial infarction, HIV status influences long-term risk, although the short-term risk in HIV patients is comparable to that in uninfected patients.

Comparative analysis of patients with acute coronary and cerebrovascular syndromes from the national French hospitalization health care system database.

BACKGROUND: Nationwide evaluations of the epidemiology of acute coronary syndrome (ACS) or cerebrovascular syndrome (CVS) are scarce. We aimed to analyze nationwide French data on patients referred to hospital for either ACS or CVS. METHODS: Using the French national hospital discharge diagnosis records, all patients hospitalized between 2005 and 2008 with a diagnosis of ACS and CVS based on the ICD-10 were identified. We analyzed vascular risk factors and early outcomes in patients with a single hospitalization for ACS or CVS or for both ACV and CVS in a 2-month time window. RESULTS: 1,187,643 patients were recorded. Among these, 638,061 (53.7%) had CVS alone, 525,419 (44.3%) had ACS alone, and 24,163 (2%) had both. Patients of the latter group were older, had a higher prevalence of hypertension, diabetes, and atrial fibrillation, a longer length of stay, were less likely to be discharged to home, and had a higher in-hospital risk of death after adjustment for age, sex, and vascular risk factors compared with patients with either CVS alone (OR = 1.71, 95% CI: 1.66-1.77) or ACS alone (OR = 2.95, 95% CI: 2.85-3.05). CONCLUSION: Patients with both CVS and ACS have a high vascular risk profile and a marked excess risk of early death.

[Good clinical practices and inpatient antibiotics: optimization of fluoroquinolone switch therapy]. / Bon usage des antibiotiques: optimisation du relais per os des fluoroquinolones.

OBJECTIVE: Intravenous-to-oral switch therapy is strongly recommended in the medical literature. The aim of this study was to assess how we can improve fluoroquinolone switch therapy. METHODS: In this comparative prospective study, we analyzed 243 intravenous ciprofloxacin treatments and assessed the impact of promoting a switch to oral step-down therapy. RESULTS: This study found that switches from intravenous to oral therapy increased, mainly in medical wards, and led to significant savings in direct costs. DISCUSSION: Promoting switch therapy has improved clinical practices in antibiotic use and led to lower direct and probably indirect drug-related costs. CONCLUSION: Our findings will help define the role of switch therapy in improving clinical practices in inpatient antibiotic use.

Serum procalcitonin measurement contribution to the early diagnosis of candidemia in critically ill patients.

BACKGROUND: Candidemia is a life-threatening infection in the ICU whose prognosis is highly dependent on the stage at which it is recognized. Procalcitonin (PCT) levels have been shown to accurately distinguish between bacteremia and noninfectious inflammatory states in critically ill patients with clinical signs of sepsis. Little is known about the accuracy of PCT for the diagnosis of candidemia in this setting. SETTING: A medical intensive care unit in a teaching hospital. PATIENTS AND METHODS: Review of the medical records of every non-neutropenic patient with either bacteremia or candidemia and clinical sepsis in whom PCT dosage at the onset of infection was available between May 2004 and December 2005. RESULTS: Fifty episodes of either bacteremia (n=35) or candidemia (n=15) were included. PCT levels were found to be markedly higher in patients with bacteremia than in those with candidemia. Moreover, a low PCT value was found to be an independent predictor of candidemia in the study population. According to the calculation of the area under the receiver operating characteristic curve, PCT was found to be accurate in distinguishing between candidemia and bacteremia (0.96 [0.03]). A PCT level of higher than 5.5 ng/ml yields a 100% negative predictive value and a 65.2% positive predictive value for candidemia-related sepsis. CONCLUSION: A high PCT value in a critically ill non-neutropenic patient with clinical sepsis is unlikely in the setting of candidemia.

Candida spp. colonization significance in critically ill medical patients: a prospective study.

OBJECTIVE: Multiple-site colonization with Candida species is commonly recognized as a major risk factor for invasive fungal infection in critically ill patients. The fungal colonization density could be of predictive value for the diagnosis of systemic candidiasis in high-risk surgical patients. Little is known about it in the medical ICU setting. DESIGN AND SETTING: Prospective observational study in the eight-bed medical intensive care unit of a teaching hospital. SUBJECTS: 92 consecutive nonneutropenic patients hospitalized for more than 7 days. MEASUREMENTS AND RESULTS: The colonization index (ratio of the number of culture-positive surveillance sites for Candida spp. to the number of sites cultured) was calculated weekly upon ICU admission until death or discharge. The 0.50 threshold was reached in 36 (39.1%) patients, almost exclusively in those with detectable fungal colonization upon ICU admission. The duration of broad-spectrum antibiotic therapy was found to be the main factor that independently promoted fungal growth as measured through the colonization index. CONCLUSIONS: Candida spp. multiple-site colonization is frequently met among the critically ill medical patients. Broad-spectrum antibiotic therapy was found to promote fungal growth in patients with prior colonization. Since most of the invasive candidiasis in the ICU setting are thought to be subsequent to colonization in high-risk patients, reducing antibiotic use could be useful in preventing fungal infections.

Candidemia in critically ill patients: difference of outcome between medical and surgical patients.

OBJECTIVE: Candidemia is increasingly encountered in critically ill patients with a high fatality rate. The available data in the critically ill suggest that patients with prior surgery are at a higher risk than others. However, little is known about candidemia in medical settings. The main goal of this study was to compare features of candidemia in critically ill medical and surgical patients. DESIGN: Ten-year retrospective cohort study (1990-2000). SETTING: Medical and surgical intensive care units (ICUs) of a teaching hospital. PATIENTS: Fifty-one patients with at least one positive blood culture for Candida species. MAIN RESULTS: Risk factors were retrieved in all of the patients: central venous catheter (92.1%), mechanical ventilation (72.5%), prior bacterial infection (70.6%), high fungal colonization index (45.6%). Candida albicans accounts for 55% of all candidemia. The overall mortality was 60.8% (85% and 45.2% in medical and surgical patients, respectively). Independent factors associated with survival were prior surgery (hazard ratio [HR] =0.25; 0.09-0.67 95% confidence interval [CI], p<0.05), antifungal treatment (HR =0.11; 0.04-0.30 95% CI, p<0.05) and absence of neutropenia (HR =0.10; 0.02-0.45 95% CI, p<0.05). Steroids, neutropenia and high density of fungal colonization were more frequently found among medical patients compared to surgical ones. CONCLUSIONS: Candidemia occurrence is associated with a high mortality rate among critically ill patients. Differences in underlying conditions could account for the poorer outcome of the medical patients. Screening for fungal colonization could allow identification of such high-risk patients and, in turn, improve outcome.

[Admission to intensive care of very old patients]. / L'admission en réanimation des personnes très âgées.

UNLABELLED: THE EXTENT OF THE PROBLEM: Because of the costs of intensive care, there is a possibility that access to this sector may be limited for those above a certain age. It would therefore appear necessary to develop an ethical clinical strategy in order to assess as precisely as possible and on individual level, the benefits and risks of these techniques, since age itself is simply a criterion among so many others. Among the elements that are important for the decision is the respect of the patient's wish, when it can be obtained since this is a fundamental point. In studies conducted in the United States, 50 to 90% of the elderly persons interviewed did not wish to be resuscitated in the case of cardiac arrest. CRITERIA FOR ADMISSION: The decision to admit an elderly patient in an intensive care unit must take into account the functional state of the patient, appreciated on daily activity and mobility scores and the neuro-psychological assessment, before hospitalization. In parallel, the severity of the underlying disease and the impact on visceral failures, assessed by the severity scores on admission appear to be more reliable prognostic elements than the patients' age itself. FOLLOWING RESUSCITATION: The quality of life of elderly patients within the months following resuscitation is difficult to assess, but is considered as acceptable in the majority of surviving patients. IN PRACTICE: The choice of admission in intensive care of an elderly patient requires a multidisciplinary approach that takes into account the patient's and/or family's wishes, the benefit/risk ratio of the technical act but which also, in certain cases, bears in mind the principle of end of life and the patient's dignity.

Plasma antioxidant status in septic critically ill patients: a decrease over time.

Severe septic states in humans are responsible for intense intravascular oxidative stress, which induces numerous adaptive mechanisms. We determined time sequence changes in total plasma antioxidant capacity (TAC) and major plasma antioxidant concentrations, which have not been fully explained in septic conditions. A cohort of 56 consecutive septic patients (septic shock n = 37, severe sepsis n = 19) and six healthy volunteers. We compared TAC and antioxidant levels in patients with one of two degrees of septic states, at the onset of illness, to those of healthy volunteers. Thereafter, over a 10-day follow-up, we observed daily the time sequence changes of the two septic populations in terms of TAC and antioxidants. At the onset, there was no difference between the three groups in terms of TAC values (healthy subjects 2.18 +/- 0.04; severe sepsis 2.03 +/- 0.07; septic shock 2.09 +/- 0.09), then an equivalent time decline was observed in the two septic populations whatever the severity. TAC was statistically linked to uric acid, proteins in particular albumin and bilirubin (multivariate analysis), but no correlation was found with any vitamin (A, C and E). A sharp and persistent decrease in vitamin C concentrations was underlined. TAC, unaffected at first, deteriorated over time whatever the severity of the infection in these critically ill patients. TAC, unable to distinguish severe sepsis and septic shock, is unlikely to be a particularly useful outcome measure.

Effect of a nurse-implemented sedation protocol on the incidence of ventilator-associated pneumonia.

OBJECTIVE: To determine whether the use of a nurse-implemented sedation protocol could reduce the incidence of ventilator-associated pneumonia in critically ill patients. DESIGN: Two-phase (before-after), prospective, controlled study. SETTING: University-affiliated, 11-bed medical intensive care unit. PATIENTS: Patients requiring mechanical ventilation for >or=48 hrs and sedative infusion with midazolam or propofol alone. INTERVENTIONS: During the control phase, sedatives were adjusted according to the physician's decision. During the protocol phase, sedatives were adjusted according to a protocol developed by a multidisciplinary team including nurses and physicians. The protocol was based on the Cambridge scale, and sedation level was adjusted every 3 hrs by the nurses. Standard practices, including weaning from the ventilator and diagnosis of VAP, were the same during both study phases. MEASUREMENTS AND MAIN RESULTS: A total of 423 patients were enrolled (control group, n = 226; protocol group, n = 197). The incidence of VAP was significantly lower in the protocol group compared with the control group (6% and 15%, respectively, p = .005). By univariate analysis (log-rank test), only use of a nurse-implemented protocol was significantly associated with a decrease of incidence of VAP (p < .01). A nurse-implemented protocol was found to be independently associated with a lower incidence of VAP after adjustment on Simplified Acute Physiology Score II in the multivariate Cox proportional hazards model (hazard rate, 0.81; 95% confidence interval, 0.62-0.95; p = .03). The median duration of mechanical ventilation was significantly shorter in the protocol group (4.2 days; interquartile range, 2.1-9.5) compared with the control group (8 days; interquartile range, 2.2-22.0; p = .001), representing a 52% relative reduction. Extubation failure was more frequently observed in the control group compared with the protocol group (13% and 6%, respectively, p = .01). There was no significant difference in in-hospital mortality (38% vs. 45% in the protocol vs. control group, respectively, p = .22). CONCLUSIONS: In patients receiving mechanical ventilation and requiring sedative infusions with midazolam or propofol, the use of a nurse-implemented sedation protocol decreases the rate of VAP and the duration of mechanical ventilation.

Amiodarone-related acute respiratory distress syndrome following sudden withdrawal of steroids.

Acute lung toxicity is a rare but classical complication of amiodarone therapy. We report the case of a patient who developed an optic neuropathy after 15 years of amiodarone administration, and who was treated for 2 weeks with steroids. Following withdrawal of steroids, the patient rapidly developed an acute respiratory distress syndrome. Postmortem lung histologic examination was consistent with amiodarone-induced pneumonitis. Since this complication is thought to be of immunological origin, we speculate that the sudden withdrawal of steroids was implicated in the development of the acute lung injury.

An unusual cause of acute respiratory distress in a patient with AIDS: primary infection with Toxoplasma gondii.

Hypoxemic pneumonia in AIDS patients is mainly caused by Pneumocystis carinii, Toxoplasma gondii and CMV, although the significance of CMV recovery in BALF is often unclear. Since lung involvement generally occurs during reactivation, T. gondii is not expected to be demonstrated in patients without evidence of past infection with this agent. We report a fatal case of pneumonia revealing a T. gondii primary infection diagnosed thanks to the PCR analysis of the BALF.