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Biomedical subjects

G Genco

Publications and source records attributed to G Genco.

16 recordsLinked to original sources

[Fiberoptic intubation in adult patients with predictive signs of difficult intubation: inhalational induction using sevoflurane and an endoscopic facial mask].

OBJECTIVE: To evaluate the combination of inhalational induction with sevoflurane and fiberoptic intubation through a specific facial mask for anticipated difficult tracheal intubation (DI) in adults. STUDY DESIGN: Prospective study. PATIENTS AND METHODS: Eighteen consecutive patients at risk of DI. After premedication made of hydroxyzine 2 mg x kg(-1), preoxygenation, 0.1 microg x kg(-1) sufentanil was administered (T0), then, inhalational induction was started: sevoflurane 8% in 100% O2 l x min(-1). After 1 min, sevoflurane was decreased to 5% and, if necessary, adapted to obtain an adequate depth of anaesthesia (Ramsay score > 3). Fiberoptic bronchoscopy was performed through a Fibroxy mask. BP was measured every 2.5 min, HR, SpO2, RR were recorded. The results were analyzed by Newman-Keuls test. RESULTS: Intubation was easily realized but it was necessary to assist ventilation in patients presenting prolonged apnea lasting more than 30 s (5 out of 9 patients who presented apnea during procedure). Intubation was quickly realized (T+ 4 +/- 3 min). Haemodynamics and saturation were not altered during procedure. Inhalatory induction using sevoflurane costs 6 10 versus 16 80 for intravenous target controlled propofol anesthesia (using only one preconditionned syringe). CONCLUSION: Inhalational induction with sevoflurane and fiberoptic intubation appeared easy, fast and cheap.

Adult↗

[Fiber-optic intubation with non-invasive ventilation with an endoscopic facial mask].

OBJECTIVES: To assess the feasibility and safety of a new technique of fiberoptic bronchoscopy (FOB) tracheal intubation (TI) with noninvasive ventilation (NIV) via an endoscopic full facial mask with two openings, in case of acute respiratory failure (ARF) temporally improved by NIV, but requiring a mechanical ventilation. STUDY DESIGN: Clinical, prospective, open, noncomparative trial of feasibility with direct individual profit. PATIENTS: Sixteen patients with ARF (age: 60 +/- 17 years, PaO2 = 59 +/- 16 mmHg, PaCO2 = 64 +/- 26 mmHg, PaO2/FIO2 = 142 +/- 70 before NIV) (m +/- SD), requiring TI. Including were: TI necessity (SpO2 < 90% or hypercapnic despite NIV, dependence of NIV, exhaustion, septic syndrome), clinical and SpO2 improvement with NIV. METHODS: After i.v. injection of 5 mg midazolam and topical anesthesia (TA) of the nose, the endoscopic mask (modified Fibroxy, Péters) was applied to the face, fixed with elastic straps, then connected to the ventilatory support system with IPAP = 20 cmH2O, EPAP = 5 to 12 cmH2O, FIO2 = 1. A tube was slid on the FOB. As soon as SpO2[[[nbsp] 94%, the extremity of the FOB, was inserted through the lower opening of the mask, slid in the nostril, positioned in front of the glottis for AL, then pushed in the trachea authorizing AL and i.v. injection of 0.15 mg.kg-1 of etomidate (Ramsay[[[nbsp]3). The tube was then slid in the trachea, then, FOB was removed from trachea. RESULTS: The FOB intubation was easy at the patient's, without any failure or any complication. The procedure was 6.7 +/- 2 min. SpO2 significantly improved during TI, from 84 +/- 5% (FIO2 = 0.6 +/- 3) to 97 +/- 1 (FIO2 = 1 +/- 0), without decrease in oxygen saturation off 90%. Arterial pressure decreased only after the 5th min. The quantities of midazolam and of etomidate used were 4.6 +/- 2 mg and 12 +/- 4 mg. Three patients benefited from EPAP > 10 cmH2O. CONCLUSION: Fiberoptic tracheal intubation with NIV via an adapted endoscopic facial mask is a safe technique in patient with ARF temporally improved by NIV. This procedure requires TA and conscious sedation.

Bronchoscopy↗

[Fiberoptic bronchoscopy during noninvasive positive-pressure ventilation in patients with chronic obstructive lung disease with hypoxemia and hypercapnia].

OBJECTIVES: To assess the feasibility and safety of non invasive positive-pressure ventilation (NIPPV) via a face mask to performing fiberoptic bronchoscopy (FOB) in patients with COPD contraindicating FOB in spontaneous ventilation. STUDY DESIGN: Clinical, prospective, open, non comparative trial of feasibility. PATIENTS: Ten consecutive COPD patients (71 +/- 5 year-old, PaO2 = 53 +/- 13 mmHg and PaCO2 = 67 +/- 11 mmHg), without any sign of acute respiratory failure, admitted to the intensive care unit for pneumonia requiring a bronchoalveolar lavage (BAL). Including were: PaO2 < 70 mmHg despite nasal O2 delivered at 3 L.min-1, PaCO2 > 50 mmHg, improvement of SpO2 with NIPPV before FOB. METHODS: Topical anaesthesia of the nose and pharynx was obtained with a 5% lidocaine spray. NIPPV was administered using a ventilatory support system Evita 4 (Dräger) applied through a full facial mask secured to the patient with elastic straps. Patients were first allowed to acclimate for 5 min with NIPPV (IPAP = 16 cmH2O, EPAP = 0 and trigger of 0.3 cm H2O while a FIO2 kept at 0.7). A T-adapter Medisize (Péters) was attached to the facial mask. The tip of the FOB was inserted through the nose. Topical anaesthesia of the vocal cords was obtained with 1% lidocaine solution (3 mL). The FOB was inserted into the trachea up to a bronchial sub-segment. BAL was performed by instillation of 100 mL of saline solution. After FOB, the NIPPV was maintained for 5 min. Heart rate, SpO2 were measured continuously and arterial pressure at 2 min intervals. Arterial blood gas values were obtained just prior NIPPV and after 15 min and 60 min NIPPV disconnection. RESULTS: FOB duration was 11 +/- 4 min. SpO2 significantly improved during FOB (from de 91 +/- 4.7% to 97% +/- 1.7) without decrease of oxygen saturation lower than 90%. There were no changes in PaCO2 and PaO2 during the hour following the end of procedure. FOB under NIPPV was performed in all patients without complications and was very well tolerated in eight patients. After NPPV disconnecting, one patient required again NIPPV for 15 min. No patient required endotracheal intubation within 24 hours. All patients survived. CONCLUSION: Application of NIPPV during FOB is a safe technic for maintaining adequate gas exchange in hypoxaemic and hypercapnic COPD patients not in acute respiratory failure. After the end of the procedure a close surveillance in the intensive care unit is essential.

Aged↗

[Cerebral and renal toxicity of acyclovir in a patient treated for meningoencephalitis].

We report the case of a 65-year-old man treated with intravenous acyclovir and amoxicilline for meningoencephalitis. Six days later, he suddenly developed acute renal failure, associated with central nervous system symptoms. The high acyclovir concentration in plasma and spinal fluid confirmed the hypothesis of acyclovir toxicity. Continuous haemofiltration resulted in a rapid amendment of neurologic and renal symptoms. Despite the high therapeutic index of acyclovir, manifestations of neurotoxicity and nephrotoxicity are not a rare event. The risk is increased in the elderly and in patients with renal insufficiency. Rapid intravenous injections are contraindicated. Continuous haemofiltration is rapidly efficient. The value of acyclovir concentration determination in plasma and spinal fluid are stressed.

Acute Kidney Injury↗

[Cardio-thyrotoxicosis with arrhythmia disclosed by an embolic cerebrovascular accident].

We report a case of thyroid cardiomyopathy from an iodine overload in a patient admitted for a cerebrovascular accident. The diagnosis was suggested by a hyperkinetic circulatory status and confirmed by the increased circulating thyroid hormone concentrations. Treatment improved the haemodynamic status, however the patient died from a cerebral herniation.

Atrial Fibrillation↗

[Oxygen supply in war times. Current perspectives].

The authors report their experience of the use of various sources of oxygen feeding in wartime: a classical feeding by liquid oxygen or by extractive oxygen cylinders; a new type of feeding by oxygen condensers or chemical oxygen. According to their practical experience, each source finds its role in wartime, this role being determined by war conditions.

Drug Packaging↗

[Evaluation of locoregional anesthesia in an emergency-traumatology operating room].

Surgical activities concerning traumatic emergencies have been evaluated during 3.5 months. There has been 371 cases. Most of them concerned hand injuries (48%); others concerned limbs, and 5 multiple injuries, one spinal fracture and 30 various injuries. Loco-regional anesthesia has been preferred in 63% of all cases; 80% of all hand injuries, 100% of all femoral neck fractures. The success rate--no addition of morphinics--has been evaluated at 85%, with use of sedatives in 28%.

Adolescent↗

[Diseases of the shipwrecked: apropos of 3 cases].

Three men (31, 34, 36 yr old) were rescued after they had drifted for 50 hours on their wrecked catamaran. While their apparent clinical condition was not worrying, besides multiple bruises, marked dehydration, epigastralgias, mild hypothermia in one patient and 50, severe biological disorders were present in all four: haemoconcentration, functional renal insufficiency, metabolic acidosis, severe rhabdomyolysis, hepatic cytolysis. After intravenous rehydration for 24 hr hydroelectrolytic and acid-base anomalies were corrected. Pathophysiology of shipwreck casualties is recalled. Initial management in ICU is necessary. Psychological and emotional aspects should not be underrated.

Acidosis↗

Cisplatin-cyclophosphamide-mitomycin combination chemotherapy with supportive care versus supportive care alone for treatment of metastatic non-small-cell lung cancer.

BACKGROUND: Patients with TNM stage IV non-small-cell lung cancer have short survival times. Previous controlled studies comparing chemotherapy and supportive care for the treatment of this type of cancer have not given consistent results, have included patients with different disease stages, and have rarely reported drug dose intensity. PURPOSE: The present trial was designed to assess the safety and the effect on survival of supportive care alone versus chemotherapy with cisplatin, cyclophosphamide, and mitomycin combined with appropriate supportive care in patients with stage IV non-small-cell lung cancer. METHODS: Patients (n = 102) with stage IV non-small-cell lung cancer were randomly assigned to one of two treatment regimens. The combined modality group (52 patients) received supportive care along with cisplatin (75 mg/m2), cyclophosphamide (400 mg/m2), and mitomycin (10 mg/m2) given intravenously at 3-week intervals. The supportive care group (50 patients) received supportive care alone. Randomization was stratified on the basis of histology (squamous versus nonsquamous cell carcinoma), performance status (Karnofsky), and weight loss (during the 6 months preceding randomization). The two groups were well matched for age and sex. Survival analysis was performed after the last patient died. RESULTS: The median number of chemotherapy cycles was 3.5 per patient. Mean weekly delivered doses of drugs were as follows: cisplatin, 22.1 mg/m2; cyclophosphamide, 118 mg/m2; and mitomycin, 2.9 mg/m2. Toxic effects due to chemotherapy were generally mild, but peripheral neuropathy and hematologic and renal toxic effects were observed. In the supportive care group, mean survival was 6.1 months (median, 4.0 months); six patients lived at least 12 months and two lived at least 18 months. In the combined modality group, mean survival was 11.3 months (median, 8.5 months); 20 patients lived at least 12 months, 13 lived at least 18 months, and five lived at least 24 months. Difference in survival was statistically significant (P < .0001). Survival was directly related to initial performance status in both groups (P < .01) and was significantly (P < .01) longer for patients with squamous cell carcinoma than for those with nonsquamous cell carcinoma. CONCLUSIONS: The combination of supportive care and cisplatin-cyclophosphamide-mitomycin therapy offers a survival advantage over supportive care alone in patients with advanced non-small-cell lung cancer. IMPLICATIONS: Metastatic non-small-cell lung cancer, generally considered to be unresponsive or marginally responsive to chemotherapy, can be treated with chemotherapy, with an expectation of prolonging patient survival. Although the results of the present study are encouraging, clinical research should continue to be directed toward developing more effective treatments for this disease.

Adult↗

[Comparative studies of the response of normolipemic and dyslipemic aged subjects to 2 forms of delayed-action nicotinic acid polyesters. Pentaerythrotol tetranicotinate and inositol hexanicotinate. Results of a controlled cross-over trial].

A cross-over trial was run to compare the effects of two delayed-action nicotinic acid polyesters (pentaerythritol-tetranticotinate, PETN, and inositol-hexanicotinate, MIEN) in 59 aged normo- and dyslipaemic subjects. PETN tended to normalise the lipid picture in much the same way as nicotin acid, without a drastic effect on circulating lipids and lipoproteins. MIEN, on the other hand, had only a slight effect on total blood lipids, and appeared to be ineffective or negative with respect to the other lipid parameters. PETN proved capable of releasing active concentrations of nicotinic acid in vivo for a period of time that was sufficient to correct hyperlipaemia in age subjects. The side-effects were slight, infrequent and quickly reversible.

Age Factors↗