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Biomedical subjects

Alain Tenaillon

Publications and source records attributed to Alain Tenaillon.

12 recordsLinked to original sources

Reliability of HemoCue in patients with gastrointestinal bleeding.

OBJECTIVE: HemoCue is routinely used to manage bleeding patients, but few studies have evaluated its accuracy in this population. We compared HemoCue with laboratory determination of blood hemoglobin in patients with gastrointestinal bleeding. DESIGN AND SETTING: A prospective observational study in a 14-bed medicosurgical ICU and an emergency department in an urban general hospital. PATIENTS: 94 patients admitted to the emergency department or to the ICU for gastrointestinal bleeding. INTERVENTIONS: Blood was drawn at admission to measure laboratory hemoglobin and capillary hemoglobin was measured simultaneously by HemoCue. The unit of hospitalization and the presence or absence of impaired vital signs (tachycardia and/or hypotension and/or shock) were recorded. MEASUREMENTS AND RESULTS: The mean difference between HemoCue and hemoglobin (bias) was -0.06 g/dl and standard deviation (precision) 0.87 g/dl. (95% CI -1.8 to 1.68). Discrepancies between HemoCue and hemoglobin were greater than 1 g/dl in 21% of cases. Bias was comparable between patients admitted to the ICU and those in the emergency department. The accuracy of HemoCue was not affected by the presence of impaired vital signs or by a hemoglobin level below 9 g/dl or 7 g/dl. CONCLUSIONS: Although we demonstrated a low bias between HemoCue and blood hemoglobin determination, large HemoCue vs. hemoglobin differences may still occur, and therefore therapeutic decisions based upon capillary HemoCue alone should be very cautious.

Gastrointestinal Hemorrhage↗

Culture, organization, and management in intensive care: construction and validation of a multidimensional questionnaire.

OBJECTIVE: The objective of this study is to develop and validate a questionnaire designed to assess the culture, organization, and management of intensive care units. DESIGN: This is a prospective multicenter study. SETTING: The study was conducted in 26 intensive care units located in Paris. PARTICIPANTS: All personnel were asked to complete the questionnaire. INTERVENTION: The questionnaire was developed in 2 steps: (1) development of a theoretical framework based on organizational theory and (2) testing of the reliability and validity of a comprehensive set of measures. METHOD: The internal consistency of the items composing each scale was tested by using the Cronbach alpha. Convergent, and discriminant validity was assessed by factor analysis with varimax rotation. RESULTS: The overall completion rate was 74% with 1000 respondents (750 nurses, 26 head nurses, 168 physicians, and 56 medical secretaries). Starting with a 220-item questionnaire, we constructed a short version-conserving metrological characteristics with good reliability and validity. The short questionnaire, entitled Culture, Organization, and Management in Intensive Care, consists of 106 items distributed in 9 dimensions and 22 scales: culture (n = 3), coordination and adaptation to uncertainty (n = 3), communication (n = 3), problem solving and conflict management (n = 2), organizational learning and organizational change (n = 2), skills developed in a patient-caregiver relationship (n = 1), subjective unit performance (n = 3), burnout (n = 3), and job satisfaction and intention to quit (n = 2). All the scales showed good-to-high reliability, with Cronbach alpha scores higher than .7 (with the exception of coordination [.6]). Team satisfaction-oriented culture is positively correlated with good managerial practices and individual well-being. CONCLUSIONS: The Culture, Organization, and Management in Intensive Care questionnaire enables staff and managers to assess the organizational performance of their intensive care unit.

Attitude of Health Personnel↗

Pulmonary edema induced by calcium-channel blockade for tocolysis.

Nicardipine is used in the treatment of premature labor. There are no previous reports in the anesthesia literature of serious side effects associated with this drug. We report a case of pulmonary edema induced by nicardipine therapy for tocolysis in a pregnant 27-yr-old patient admitted to our hospital for preterm labor with intact membranes at 27 wk of gestation.

Adult↗

Family participation in care to the critically ill: opinions of families and staff.

BACKGROUND: Allowing family members to participate in the care of patients in intensive care units (ICUs) may improve the quality of their experience. No previous study has investigated opinions about family participation in ICUs. METHODS: Prospective multicenter survey in 78 ICUs (1,184 beds) in France involving 2,754 ICU caregivers and 544 family members of 357 consecutive patients. We determined opinions and experience about family participation in care; comprehension (of diagnosis, prognosis, and treatment) and satisfaction (Critical Care Family Needs Inventory) scores to assess the effectiveness of information to families and the Hospital Anxiety and Depression score for family members. RESULTS: Among caregivers 88.2% felt that participation in care should be offered to families. Only 33.4% of family members wanted to participate in care. Independent predictors of this desire fell into three groups: patient-related (SAPS II at ICU admission, OR 0.984); ICU stay length, OR 1.021), family-related (family member age, OR 0.97/year); family not of European descent, OR 0.294); previous ICU experience in the family, OR 1.59), and those related to emotional burden and effectiveness of information provided to family members (symptoms of depression in family members, OR 1.58); more time wanted for information, OR 1.06). CONCLUSIONS: Most ICU caregivers are willing to invite family members to participate in patient care, but most family members would decline.

Adult↗

Increased endogenous carbon monoxide production in severe sepsis.

OBJECTIVE: A comparison was made between the endogenous carbon monoxide (CO) production in mechanically ventilated critically ill adult patients with, and those without, severe sepsis. DESIGN: Prospective comparative study. SETTING: Medical ICU in a community hospital. PATIENTS: Twenty-four patients with severe sepsis of various etiologies and five control patients with varying diagnoses. INTERVENTION: CO concentration was determined with an infrared CO analyzer on exhaled breath collected at the outlet of the ventilator. Endogenous CO production was estimated by the lung CO excretion rate measured at steady state. MEASUREMENTS AND MAIN RESULTS: : Endogenous CO production was higher in the sepsis group during the first 3 days of treatment in comparison to the control group (10.9+/-5 (SD) microl/kg per h on day 1, 7.8+/-4.9 microl/kg per h on day 2 and 6.9+/-4.7 microl/kg per h on day 3 versus 2.1+/-0.5 microl/kg per h; p<0.01 for each comparison). Survivors of sepsis had a significantly higher endogenous CO production on day 1 compared to non-survivors (14.7+/-5.3 versus 8.5+/-3.3 microl/kg per h; p=0.02). CONCLUSION: Endogenous CO production was significantly higher in mechanically ventilated patients suffering from severe sepsis. Further studies are required in order to determine the mechanism(s) and the functional significance of this increase.

APACHE↗

Erythromycin and early enteral nutrition in mechanically ventilated patients.

OBJECTIVE: To determine whether erythromycin facilitates early enteral nutrition in mechanically ventilated, critically ill patients. DESIGN: Prospective, randomized, placebo-controlled, single-blind trial. SETTING: General intensive care unit in a university-affiliated general hospital. PATIENTS: Forty consecutive critically ill patients receiving invasive mechanical ventilation and early nasogastric feeding. INTERVENTIONS: Patients were assigned randomly to intravenous erythromycin (250 mg/6 hrs; n = 20) or a placebo (intravenous 5% dextrose, 50 mL/6 hrs; n = 20) for 5 days. The first erythromycin or 5% dextrose injection was given at 8 am on the day after intubation. One hour later, a daily 18-hr enteral nutrition regimen via a 14-Fr gastric tube was started. Residual gastric volume was aspirated and measured every day at 9 am, 3 pm, 9 pm, and 3 am. Enteral nutrition was discontinued if residual gastric volume exceeded 250 mL or the patient vomited. MEASUREMENTS AND MAIN RESULTS: On the first day, residual gastric volume was smaller in the erythromycin than in the placebo group (3 pm, 15 +/- 7 mL vs. 52 +/- 14 mL, p <.05; 9 pm, 29 +/- 15 mL vs. 100 +/- 20 mL, p <.001; 3 am, 11 +/- 4 mL vs. 54 +/- 13 mL, p <.05). With erythromycin, residual gastric volume at 9 pm was smaller on the second day (33 +/- 11 mL vs. 83 +/- 19 mL, p <.01) and residual gastric volume at 3 pm was smaller on the third day (39 +/- 15 mL vs. 88 +/- 19 mL, p <.05) than with placebo. On the fourth and fifth days, the differences in residual gastric volume were not significant. Enteral nutrition was discontinued before the end of the 5-day period in seven of the 20 erythromycin patients and 14 of the 20 placebo patients (p <.001). CONCLUSION: In critically ill patients receiving invasive mechanical ventilation, erythromycin promotes gastric emptying and improves the chances of successful early enteral nutrition.

Aged↗

Esophageal perforation associated with noninvasive ventilation: a case report.

Noninvasive positive-pressure ventilation (NIPPV) is widely used to treat acute respiratory failure, the goal being to avoid exposing patients to the morbidity associated with tracheal intubation. NIPPV may reduce the rates of intubation, morbidity, and mortality in selected patient subgroups. Although time-consuming for physicians and nurses, NIPPV is fairly easy to use, and few severe complications have been reported. Esophageal perforation is a well-recognized complication of tracheal intubation but has not been described in association with NIPPV. We report a case of fatal esophageal perforation associated with NIPPV after a surgical procedure.

Esophageal Perforation↗