[Ustekinumab-induced eosinophilic pneumonia during the course of ustekinumab therapy for plaque psoriasis]. / Pneumopathie à éosinophiles chez un patient atteint de psoriasis en plaques traité par ustékinumab.

BACKGROUND: Ustekinumab (Stelara(®)) is efficacious in severe cutaneous psoriasis. Numerous adverse effects have been reported but treatment withdrawal is rarely required. The present case concerns eosinophilic pneumonia treated with ustekinumab. PATIENT AND METHODS: A 71-year-old male patient presented severe plaque psoriasis with an indication for biotherapy. Pre-treatment investigations showed a highly positive interferon gamma test without any anomalies in the CT chest scan. The patient was treated with anti-tuberculosis agents and ustekinumab was then introduced. Seven months later, the patient presented a cough resistant to antibiotics. A CT scan showed frosted-glass-like shadows and mediastinal lymphadenopathy. The bronchoalveolar lavage fluid contained 800elements/mm(3), of which 34% eosinophils. There were 1480G/L eosinophils in peripheral blood. There was nothing evocative of infectious or tumoral causes, and a diagnosis of eosinophilic pneumonia was made. Ustekinumab was stopped and 10weeks later, the patient's condition worsened; after further examination, systemic corticosteroids were given, beginning with prednisone 1mg/kg. Seven months later, the patient was symptom-free, without eosinophilia, and his chest scan was normal. The corticosteroids were stopped. DISCUSSION: Eosinophilic pneumonia includes various disorders characterized by eosinophilic infiltration of lung tissue, with or without the presence of eosinophils in peripheral blood. Eosinophilic pneumonia can be caused by many different drugs. Diagnosis is difficult because clinical and radiological abnormalities may develop at different times after treatment initiation and they are non-specific. A favourable outcome may occur spontaneously on treatment withdrawal or a short course of corticosteroid therapy may be needed. A case of eosinophilic pneumonia under ustekinumab has already been reported, supporting the causal involvement of this drug in our patient. Eosinophils in peripheral blood have also been reported with anti-TNF-alpha. In conclusion, where a patient on biologic treatment for psoriasis presents persistent cough, once infectious disease has been ruled out, eosinophilic pneumonia should be considered.

[Management of the sedated patient]. / Prise en charge du patient sédaté.

A sedation strategy aimed at minimizing alteration of consciousness once comfort, analgesia and adaptation to the ventilator have been ensured is feasible in critically-ill patients requiring mechanical ventilation, even if, in patients with severe ARDS or ICH, the high dosages of sedatives and analgesics transiently required to provide perfect adaptation to the ventilator often preclude preservation of consciousness. The main components of a sedation algorithm include a clear objective of sedation-analgesia, regular assessments of patient status using validated clinical tools and a precise yet simple dosage adaptation schedule. Development and implementation of a sedation algorithm requires a multidisciplinary approach and an important input from both physicians and nurses. However, several methodologically-correct interventional studies have shown that using an algorithm to administrate sedatives and analgesics results in a significant reduction of MV duration, reaching 50% in some studies. This might translate into a real benefit for the patient point of view provided that preserving patient's comfort remains a constant concern for the caregivers. There is no reliable evidence to date to use propofol rather than midazolam as a sedative agent. Indeed, the way the sedative drug is used, as part of a sedation algorithm, is very likely more important than the selection of the drug itself. Analgesia-based sedation, promoting the use of morphinics alone before the adjunction of hypnotics, represents a new alternative to the traditional combined administration of hypnotics and morphinics. However data on the impact of analgesia-based sedation on patients' outcomes remain sparse to date.

Severe acute asthma with bowel infarction and pneumatosis intestinalis in a young adult.

A young patient presented with a small bowel infarction with pneumatosis intestinalis in the early course of life-threatening severe acute asthma. Low cardiac output with severe congestive right heart failure combined with the use of high doses of epinephrine to reverse the near-fatal bronchospasm probably contributed to this previously unreported complication. The presence of gas collections in the submucosal space was possibly the consequence of diffuse small bowel mucosal disruption. Early recognition of this unusual complication is of major importance to ensure appropriate therapeutic management.

"Colonization pressure" and risk of acquisition of methicillin-resistant Staphylococcus aureus in a medical intensive care unit.

OBJECTIVE: To determine the roles of "colonization pressure," work load or patient severity in patient acquisition of methicillin-resistant Staphylococcus aureus (MRSA) in intensive care units (ICUs). DESIGN: Prospectively collected data from October 1996 through December 1998. SETTING: A 12-bed medical ICU in a university-affiliated general hospital. PATIENTS: Patients with risk factors for MRSA admitted to the ICU were screened within 72 hours of admission and weekly thereafter. MRSA was considered imported if detected during the first 72 hours of admission and nosocomial if detected only thereafter. Three screening strategies were used on admission during three consecutive periods. INTERVENTIONS: The unit of time chosen for measurements was the week. Weekly colonization pressure (WCP) was defined as the number of MRSA-carrier patient-days/total number of patient-days. Patient severity (number of deaths, Simplified Acute Physiologic Score [SAPS] II), work load (number of admis sions, Omega score), and colonization pressure (number of MRSA carriers at the time of admission, WCP) were compared with the number of MRSA-nosocomial cases during the following week. RESULTS: Of the 1,016 patients admitted over 116 weeks, 691 (68%) were screened. MRSA was imported in 91 (8.9%) admitted patients (13.1% of screened patients) and nosocomial in 46 (4.5%). The number of MRSA-nosocomial cases was correlated to the SAPS II (P=.007), the Omega 3 score (P=.007), the number of MRSA-imported cases (P=.01), WCP (P<.0001), and the screening period (P<.0001). In multivariate analysis, WCP was the only independent predictive factor for MRSA acquisition (P=.0002). Above 30% of WCP, the risk of acquisition of MRSA was approximately fivefold times higher (relative risk, 4.9; 95% confidence interval, 1.2-19.9; P<.0001). CONCLUSION: Acquisition of MRSA in ICU patients is strongly and independently influenced by colonization pressure.

Using and understanding sedation scoring systems: a systematic review.

OBJECTIVE: To systematically review instruments for measuring the level and effectiveness of sedation in adult and pediatric ICU patients. STUDY IDENTIFICATION: We searched MEDLINE, EMBASE, the Cochrane Library and reference lists of the relevant articles. We selected studies if the sedation instrument reported items related to consciousness and one or more additional items related to the effectiveness or side effects of sedation. DATA ABSTRACTION: We extracted data on the description of the instrument and on their measurement properties (internal consistency, reliability, validity and responsiveness). RESULTS: We identified 25 studies describing relevant sedation instruments. In addition to the level of consciousness, agitation and synchrony with the ventilator were the most frequently assessed aspects of sedation. Among the 25 instruments, one developed in pediatric ICU patients (the Comfort Scale), and 3 developed in adult ICU patients (the Ramsay scale, the Sedation-Agitation-Scale and the Motor Activity Assessment Scale), were tested for both reliability and validity. None of these instruments were tested for their ability to detect change in sedation status over time (responsiveness). CONCLUSION: Many instruments have been used to measure sedation effectiveness in ICU patients. However, few of them exhibit satisfactory clinimetric properties. To help clinicians assess sedation at the bedside, to aid readers critically appraise the growing number of sedation studies in the ICU literature, and to inform the design of future investigations, additional information about the measurement properties of sedation effectiveness instruments is needed.

[The TNM classification. Critical review]. / La classification TNM. Revue critique.

The TNM classification was adopted as a means of evaluating bronchopulmonary cancer and has been used since-1996. It is an international classification and has been recognised since 1986 [5]. After a brief review of the former TNM classification the different features of the newly defined classification are specified concerning particularly the definition of T3 and T4 tumours, some malignant T4 pleural effusions and disease of the lymph nodes (N2, N3) as well as a final classification with 5 stages. Some controversy has appeared over the daily use of this classification and are discussed in the recent literature. They are related to: the re-grouping in Stage 1 of patients with different survivals (T1N0M0 and T2N0M0), the resectability of certain T4 tumours involving the carina, the adverse prognosis of invasion of the visceral pleural and above all the definition of N2 mediastinal node disease which groups together patients with a very heterogeneous prognosis. In 1993, a supplemental was published by the International Union Against Cancer (UICC) entitled "Commentary on the Uniform use of TNM". The commentaries referred to the bronchopulmonary cancers that have been re-grouped and included point by point discussion of the TNM classification. Very recently, Moutain has published some revisions of the TNM classification which will be discussed here.

Blood vessel and lymphatic vessel invasion in resected nonsmall cell lung carcinoma. Correlation with TNM stage and disease free and overall survival.

BACKGROUND: The objective of this prospective study was to assess in 96 patients with resected nonsmall cell lung carcinoma (NSCLC) the prevalence of both blood and lymphatic vessel invasion (BVI and LVI) according to stage, as well as their prognostic value for disease free and overall survival. METHODS: BVI and LVI were evaluated by hematoxylin and eosin stains on surgical specimens after resection. Associations among variables were tested by Fisher's exact test or the chi-square test; prognostic values on time-failure data were analyzed by the log rank test and the multivariate Cox model. RESULTS: BVI was present in 52% of NSCLC cases and LVI in 59%. Venous but not arterial vascular invasion correlated with the T factor and pTNM, whereas LVI correlated with the N factor and pTNM. In univariate analysis, LVI but not BVI was associated with a short disease free interval (P = 0.0007) and poor survival (P = 0.0001). The estimated relative risk of death in patients with LVI was 3.2 compared with patients without LVI. In multivariate analysis, LVI and pTNM were additional predictors for poor disease free and overall survival. In this series, BVI had no prognostic value. CONCLUSIONS: The prevalence of BVI and LVI appeared high in patients with NSCLC, especially those with advanced pTNM stages. LVI was predictive of poor outcome, both time to recurrence and death.

[Bronchopulmonary cancer and peripheral neuropathy: diagnostic difficulties. Apropos of a case]. / Cancer bronchopulmonaire et neuropathie périphérique: les difficultés diagnostiques. A propos d'un cas.

The well-known neurotoxicity of cisplatin may be difficult to diagnose when the neuropathy it produces becomes worse during the weeks or months following the discontinuation of treatment or, exceptionally, appears at the time when cisplatin therapy is withdrawn. In addition, the drug-induced peripheral neuropathy must be distinguished from a paraneoplastic syndrome and in particular from epidural or radicular tumoral invasion. These different diagnoses are discussed in the light of the case reported here.