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1.
Br J Anaesth ; 116(6): 847-54, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27199316

RESUMO

BACKGROUND: We reviewed our experience with tracheal extubation in the operating room (E-OR) among cystic fibrosis patients requiring bilateral lung transplantation to evaluate safety and determine predictive factors of E-OR. METHODS: The charts of 89 recipients (from May 2007 to June 2013) were analysed. Patients were divided into E-OR and E-ICU (intensive care unit extubation) groups. Data are expressed as numbers (percentages) or medians [25th-75th percentiles]. RESULTS: There were 41 patients in the E-OR group (46%). Donor and recipient characteristics were similar between groups. Intraoperative complications occurred less frequently in the E-OR group, and fluid and transfusion requirements were lower. Postoperative courses were different in the E-OR group, including a lower rate of grade 3 primary graft dysfunction (0 compared with 19 patients, P<0.0001) and shorter ICU (5.0 [3.7-7.2] compared with 11.5 [7.0-15.5] days) and hospital stays (22.0 [18.0-25.5] compared with 33.0 [25.0-56.5] days, respectively; P<0.0001 for both). The 1 yr survival rates were similar: 95% in the E-OR group and 98% in the E-ICU group. A statistical model built on a development cohort of 60 randomly selected patients predicted 95% of E-OR instances in this cohort and 82% of E-OR instances in the validation cohort (28 patients). Predictive factors were complications during single-lung ventilation (second graft implantation), complications during bipulmonary ventilation (end of surgery), and the ratio of arterial partial pressure of oxygen to fractional inspired oxygen (end of surgery). CONCLUSIONS: Our protocol allowed for extubation of 46% of bilateral lung transplant patients without increased postoperative risks.


Assuntos
Extubação/métodos , Transplante de Pulmão/métodos , Adolescente , Adulto , Idoso , Pressão Arterial , Transfusão de Sangue/estatística & dados numéricos , Estudos de Coortes , Cuidados Críticos , Fibrose Cística/cirurgia , Feminino , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Ventilação Monopulmonar , Salas Cirúrgicas , Oxigênio/sangue , Complicações Pós-Operatórias/epidemiologia , Valor Preditivo dos Testes , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
2.
Eur Ann Otorhinolaryngol Head Neck Dis ; 132(4): 185-9, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26117568

RESUMO

INTRODUCTION: Reconstruction of the oral cavity and oropharynx after tumour resection often involves the use of free flaps, but donor site morbidity must be taken into account. The radial forearm flap, the flap most commonly used in this setting, leaves a readily visible scar on an exposed region of the body. The thoracodorsal artery perforator flap (TDAP), which possesses the same plastic qualities as the radial forearm flap, leaves a scar that is hidden in the axilla. The purpose of this study was to evaluate the cosmetic results of radial forearm and thoracodorsal artery perforator free flap donor sites. MATERIAL AND METHODS: The medical charts of all patients undergoing reconstruction by a radial forearm or thoracodorsal artery perforator free flap between January 2011 and December 2011 were retrospectively reviewed. The Patient and Observer Scar Assessment Scales and the Vancouver Scar Scale were used to evaluate the quality of the scars. RESULTS: Reconstruction was performed by radial forearm flap in 4 cases and TDAP flap in 7 cases. The PSAS score was significantly lower in the TDAP group than in the radial forearm group (P=0.03), and the OSAS score was higher in the radial forearm group (21.5 versus 14). The Vancouver Scar Scale was significantly higher for radial forearm flap scars than for TDAP scars (8 versus 2.7, P=0.005). CONCLUSION: This is the first study to compare radial forearm and thoracodorsal artery perforator free flap donor site scars. It demonstrates the minimal TDAP donor site morbidity and the high level of patient satisfaction.


Assuntos
Estética , Neoplasias de Cabeça e Pescoço/cirurgia , Retalho Perfurante , Retalhos Cirúrgicos , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Satisfação do Paciente , Procedimentos de Cirurgia Plástica , Estudos Retrospectivos , Sítio Doador de Transplante , Cicatrização
3.
Allergy ; 69(12): 1689-95, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25155425

RESUMO

BACKGROUND: The minimally important difference (MID) has been defined as the smallest improvement considered worthwhile by a patient. The MID has not been estimated for the Rhinoconjunctivitis Total Symptom Score (RTSS). METHODS: In a prospective multicentre study, patients consulting for grass-pollen-induced allergic rhinitis (AR) recorded a 15-point global rating of change scale (GRCS) score and the Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ) score on a weekly basis and the individual symptom scores comprising the RTSS on a daily basis over two consecutive weeks. The MID in the RTSS was determined with anchor-based methods (using the GRCS and the RQLQ) and a distribution-based method [based on the RTSS' standard deviation (SD)]. RESULTS: The study population comprised 806 patients (253 children, 250 adolescents and 303 adults). During the first week of the study, the mean ± SD RTSSs for these age groups were 6.5 ± 3.3, 6.8 ± 3.4 and 7.0 ± 3.4, respectively. For an improvement of 2 points in the GRCS or 0.5 points in the RQLQ score, the regression analysis yielded MIDs in the RTSS of 1.24 ± 0.17 and 1.12 ± 0.14 in children, 1.33 ± 0.14 and 1.20 ± 0.13 in adolescents and 1.13 ± 0.14 and 0.89 ± 0.12 in adults, respectively. When applying distribution-based methods, the MID ranged from 1.09 to 1.13 (based on 0.33 SDs of the first-week RTSS) and from 1.22 to 1.40 (based on 0.5 SDs of the difference in RTSSs between the first and second weeks). CONCLUSION: The MID in the RTSS was consistently estimated as 1.1-1.3 (and could conceivably be rounded to 1) in patients with grass-pollen-induced AR.


Assuntos
Alérgenos/imunologia , Conjuntivite Alérgica/imunologia , Pólen/imunologia , Rinite/diagnóstico , Adolescente , Adulto , Idoso , Criança , Pré-Escolar , Comorbidade , Conjuntivite Alérgica/diagnóstico , Conjuntivite Alérgica/tratamento farmacológico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Qualidade de Vida , Curva ROC , Índice de Gravidade de Doença , Inquéritos e Questionários , Adulto Jovem
4.
J Fr Ophtalmol ; 36(10): 852-61, 2013 Dec.
Artigo em Francês | MEDLINE | ID: mdl-24211308

RESUMO

INTRODUCTION: Angle closure glaucoma, a recognized major world health issue disproportionately affecting women and Asians, is not often considered in our European populations, normotensive subjects, myopic patients, or subjects with a deep anterior chamber. Early diagnosis is worthwhile, as laser peripheral iridotomy (LPI) is an effective one-step treatment of the causal mechanism. PATIENTS AND METHODS: We have performed a retrospective study of patients who underwent an LPI, the indication for which was based on "photodynamic" gonioscopy in a darkened room showing iridotrabecular contact in darkness. Such photodynamic gonioscopy was motivated by the presence of even minute defects in the nerve fiber layer as seen on the GDxVCC or the presence of a Van Herick sign (narrow limbal anterior chamber depth). RESULTS: One hundred and three eyes of 103 patients underwent LPI and a minimum 1-year follow-up (mean follow-up almost 2 years). Mean age was 63.7±11.8 years, and women accounted for 63.1% of cases. The vast majority (78.6%) of patients had neither glaucoma nor ocular hypertension. There were 60.1% hyperopes and 39.9% myopes. Over half (57%) had a deep or a very deep anterior chamber. After LPI, there was immediate deepening of the limbal depth of the anterior chamber in 100% of cases. The aqueous humor that flowed forward was almost always viscous-looking. After 1 year, the IOP was 1.3mm Hg±2.4 lower (P<.001) (t test). All patients who had experienced morning headaches (44% of patients) were relieved of this symptom. GDxVCC after 1 year was clearly improved in 18% of cases, slightly improved in 20%, stable in 50%, slightly worse in 11% of cases, and clearly worse in 1%. Cases treated at an earlier stage had a better improvement in GDxVCC. DISCUSSION: Our study shows frequent chronic angle closure in our European population even with deep anterior chambers. Absence of a Van Herick sign does not rule out angle closure at night. A photodynamic gonioscopy with the Goldmann three-lens mirror (to avoid unintentional indentation with the small diameter lenses in these normotensive eyes) should be performed in a darkened room. LPI is an effective one-step treatment of the underlying cause, that is particularly beneficial if performed early.


Assuntos
Glaucoma de Ângulo Fechado/diagnóstico , Glaucoma de Ângulo Fechado/terapia , Gonioscopia/métodos , Iris/cirurgia , Terapia a Laser/métodos , Polarimetria de Varredura a Laser/métodos , Idoso , Escuridão , Feminino , Seguimentos , Gonioscopia/instrumentação , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Polarimetria de Varredura a Laser/instrumentação , Resultado do Tratamento
5.
Int J Obstet Anesth ; 21(2): 146-51, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22360936

RESUMO

BACKGROUND: Objective pain assessment that is not subject to influences from either cultural or comprehension issues is desirable. Analysis of heart rate variability has been proposed as a potential method. This pilot study aimed to assess the performance of the PhysioDoloris™ analgesia monitor which calculates an Analgesia Nociception Index derived from heart rate variability. It was compared with visual analogical pain scores. METHODS: Forty-five parturients who requested epidural analgesia were recruited. Simultaneous couplets of pain scores and Analgesia Nociception Index values were recorded every 5 min regardless of the presence or absence of uterine contractions. The relationship between indices was characterized, and a cut-off value of Analgesia Nociception Index corresponding to a visual analogical score >30 (range 0-100) was used to determine the positive and negative predictive value of the Analgesia Nociception Index. RESULTS: There was a negative linear relationship between visual analogical pain scores and Analgesia Nociception Index values regardless of the presence of uterine contractions (regression coefficient ± SEM=-0.18 ± 0.032 for entire dataset). Uterine contraction significantly reduced the Analgesia Nociception Index (P<0.0001). Using a visual analogical pain score >30 to define a painful sensation, the lower 95% confidence limit for the Analgesia Nociception Index score was 49. CONCLUSION: The Analgesia Nociception Index has an inverse linear relationship with visual analogical pain scores. Further studies are necessary to confirm the results of this pilot study and to look at the influence of epidural analgesia on the Analgesia Nociception Index.


Assuntos
Frequência Cardíaca , Trabalho de Parto , Monitorização Fisiológica/métodos , Dor Nociceptiva/classificação , Medição da Dor/métodos , Adulto , Analgesia Epidural/métodos , Analgesia Obstétrica/métodos , Feminino , Humanos , Manejo da Dor/métodos , Projetos Piloto , Valor Preditivo dos Testes , Gravidez
6.
Rev Pneumol Clin ; 67(4): 191-8, 2011 Sep.
Artigo em Francês | MEDLINE | ID: mdl-21920277

RESUMO

BACKGROUND: The increasing use of immunosuppressive and cytotoxic therapies leads to a growing number of opportunistic infections especially Pneumocystis jirovecii pneumonia (PCP). The purpose of our study was to describe the population involved, and to assess clinical, biological, and mortality data. METHODS: We collected retrospectively the whole medical file of all PCP cases diagnosed in non-HIV infected patients, in two French University Hospitals in the last decade (1999-2009). Diagnosis was made on standard coloration and/or immunofluorescence analysis of bronchoalveolar lavage fluid (BAL). RESULTS: Forty-one patients were included in the study, mean age 56 (±12.5) years, sex ratio 0.71 men/woman. Underlying diseases were as follow: 12 patients (29%) were renal transplant recipients, 13 (32%) were treated for solid cancers, and 16 (39%) suffered from various diseases (three allogenic bone-marrow transplantation, 11 hematological malignancies, one pulmonary transplantation, one vasculitis). Twelve patients died (i.e. 29%). Median lymphocyte count was 542/mm(3). More than 85% patients received corticosteroids at a median cumulative 6-month dose of 2700mg. Seven patients (17%) had a PCP prophylaxis. Clinical worsening at day 5 (P<0.003), poor control of the underlying disease (P<0.015), WHO performans status superior than 2 (P<0.025), high temperature (P<0.04), and high oxygen flow (P<0.042) were linked to a poor prognosis. DISCUSSION/CONCLUSION: The prognosis factors found are mostly linked to the patients' clinical severity. We would like to highlight: first, near to 30% mortality rate, secondly, a lack of prophylaxis in 34 patients, reflecting the difficulty to define PCP's risk in non HIV-infected patients.


Assuntos
Pneumocystis carinii , Pneumonia por Pneumocystis , Feminino , Infecções por HIV , Humanos , Masculino , Pessoa de Meia-Idade , Pneumonia por Pneumocystis/diagnóstico , Pneumonia por Pneumocystis/mortalidade , Estudos Retrospectivos
7.
Int J Clin Pharmacol Ther ; 46(9): 443-52, 2008 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-18793574

RESUMO

OBJECTIVE: The safety, tolerability, pharmacokinetics and preliminary pharmacodynamics of single rising doses of a novel GLP-1 analog, CJC-1131, was evaluated. METHODS: CJC-1131 was subcutaneously injected in 8 groups (1.5 - 20.5 microg/kg) of healthy subjects (each group of six subjects included 1 placebo per dose level). CJC-1131 was also injected subcutaneously in 6 groups (1.5 - 12 microg/kg) of Type 2 diabetic patients after a 9-day washout period from their own anti-diabetic medication. Each group of 8 patients included 2 placebo-treated patients. Seven blood glucose measurements were taken daily, and meal tolerance tests were performed on the day before dosing and on Day 3. RESULTS: CJC-1131 was quickly absorbed from the subcutaneous space, and a less than dose-proportional increase was found in Cmax. The half-life of CJC-1131 varied from 8.9 - 14.7 days in healthy subjects and from 9.1 - 13.8 days in patients. The maximum tolerated dose in healthy subjects was established at 12 microg/kg with nausea and vomiting being the dose-limiting events. These events occurred generally in the morning after dosing. Blood glucose levels in patients decreased on Day 1 in proportion with dose, with a maximum average decrease of 4.1 mmol/l in the highest dose group. Higher doses appeared to be related to a slight weight loss in patients. CONCLUSIONS: Conjugation to albumin led to a major prolongation of the half-life of GLP-1. The tolerability of this potential antidiabetic drug seems to be limited only by gastrointestinal complaints.


Assuntos
Diabetes Mellitus Tipo 2/tratamento farmacológico , Hipoglicemiantes/administração & dosagem , Maleimidas/administração & dosagem , Peptídeos/administração & dosagem , Adulto , Idoso , Glicemia/efeitos dos fármacos , Relação Dose-Resposta a Droga , Método Duplo-Cego , Feminino , Peptídeo 1 Semelhante ao Glucagon/análogos & derivados , Meia-Vida , Humanos , Hipoglicemiantes/efeitos adversos , Hipoglicemiantes/farmacocinética , Injeções Subcutâneas , Masculino , Maleimidas/efeitos adversos , Maleimidas/farmacocinética , Dose Máxima Tolerável , Pessoa de Meia-Idade , Náusea/induzido quimicamente , Peptídeos/efeitos adversos , Peptídeos/farmacocinética , Ligação Proteica , Albumina Sérica/metabolismo , Vômito/induzido quimicamente
8.
J Int Med Res ; 19(3): 183-201, 1991.
Artigo em Inglês | MEDLINE | ID: mdl-1834491

RESUMO

Lofepramine is a tricyclic antidepressant related to imipramine. Meta-analyses were carried out with respect to efficacy and tolerability by combining outcome and adverse reaction from over 20 controlled trials comparing lofepramine with other tricyclic antidepressants. Lofepramine was at least as effective as the comparators with fewer adverse effects. In particular, the risk/benefit ratio seemed superior to the comparators amitriptyline, imipramine, clomipramine, maprotiline and desipramine.


Assuntos
Lofepramina/uso terapêutico , Ensaios Clínicos como Assunto , Método Duplo-Cego , Humanos , Lofepramina/efeitos adversos , Metanálise como Assunto
9.
Artigo em Inglês | MEDLINE | ID: mdl-1862217

RESUMO

1. In a multicenter, placebo-controlled, double-blind clinical trial in 155 elderly patients with cognitive decline, glycosaminoglycan polysulfate was found to be a therapeutically effective agent in the treatment of old age dementias. 2. Treatment with glycosaminoglycan polysulfate in the daily dosage of 600 LRU, administered on the basis of a divided dosage schedule for 12 weeks, was significantly superior to an inactive placebo on several outcome measures including the Wechsler Memory Scale-Russell Revision (Easy Paired Associates Learning and Immediate Visual Reproduction), Mini Mental State Examination, the Sandoz Clinical Assessment Geriatric (Cognitive Dysfunction and Depression), Hachinski Dementia Scale, Brief Psychiatric Rating Scale (Confusion and Depressive Withdrawal) and Global Improvement Scale of the Clinical Global Impression. 3. Adverse effects with glycosaminoglycan polysulfate were few and mild. The drug was equally well tolerated and equally effective in the two major dementias of old age, i.e., primary degenerative and multi-infarct. The number of abnormal laboratory test readings remained essentially unchanged from pre-treatment to post-treatment.


Assuntos
Demência/tratamento farmacológico , Glicosaminoglicanos/uso terapêutico , Atividades Cotidianas , Idoso , Idoso de 80 Anos ou mais , Transtornos Cognitivos/tratamento farmacológico , Transtornos Cognitivos/psicologia , Método Duplo-Cego , Eletrofisiologia , Feminino , Glicosaminoglicanos/efeitos adversos , Humanos , Aprendizagem/efeitos dos fármacos , Masculino , Memória/efeitos dos fármacos , Memória de Curto Prazo/efeitos dos fármacos , Pessoa de Meia-Idade , Escalas de Graduação Psiquiátrica
10.
Braz J Med Biol Res ; 23(10): 941-51, 1990.
Artigo em Inglês | MEDLINE | ID: mdl-2101059

RESUMO

1. Dose-equivalence studies of zopiclone and triazolam were carried out. 2. Zopiclone (6.25, 8.75 and 11.25 mg), triazolam (0.1875, 0.375 and 0.5 mg) and placebo were given in the morning to 14 healthy male volunteers aged 20-25 years under double-blind conditions according to an incomplete block design. Each patient received three of the seven possible treatments at intervals of at least 1 week. Subjects were evaluated using physiological measures, rating scales and memory tasks before and 1.5 and 4.5 h after drug administration. 3. The sedative and amnestic effects of zopiclone were qualitatively similar to those of triazolam, with the highest dose of each having the greatest effect. 4. On the basis of the digit symbol substitution test, 10 mg of zopiclone is equivalent to 0.5 mg of triazolam. Methodological problems of the experimental design of dose-equivalence studies are discussed.


Assuntos
Hipnóticos e Sedativos/farmacologia , Memória/efeitos dos fármacos , Piperazinas/farmacologia , Desempenho Psicomotor/efeitos dos fármacos , Sono/efeitos dos fármacos , Triazolam/farmacologia , Adulto , Análise de Variância , Compostos Azabicíclicos , Ensaios Clínicos como Assunto , Relação Dose-Resposta a Droga , Método Duplo-Cego , Humanos , Hipnóticos e Sedativos/administração & dosagem , Masculino , Piperazinas/administração & dosagem , Escalas de Graduação Psiquiátrica , Triazolam/administração & dosagem
11.
Neuropsychobiology ; 22(1): 41-8, 1989.
Artigo em Inglês | MEDLINE | ID: mdl-2700774

RESUMO

265 adult outpatients with dysthymic disorder (DSM-III) associated with clinically manifest anxiety (according to FDA criteria) were included in a multicenter, randomized double-blind study. The trial consisted of three phases: placebo pretreatment phase and inclusion in the trial, treatment phase, placebo posttreatment phase. Patients were treated in monotherapy for 42 days with a mean dosage of 3 tablets per day corresponding to 37.5 mg/day of tianeptine or 75 mg/day of amitriptyline respectively. The following assessment instruments were used: the Montgomery and Asberg Depression Rating Scale (MADRS), the Hamilton Anxiety Rating Scale (HARS), and the Check-List for the Evaluation of Somatic Symptoms of J.D. Guelfi and C.B. Pull (CHESS 82). Analysis of MADRS total scores showed an important and rapid improvement in tianeptine and amitriptyline groups, reaching statistical significance as soon as D7. At the end of the 6-week treatment period the tianeptine group reached a decrease of 64% in the initial MADRS total score versus 69% in the amitriptyline group. 78% of patients treated with tianeptine and 83% of patients treated with amitriptyline were considered as treatment responders. There was no difference in drop-out rates between the two groups. HARS scores showed a decrease in psychic as well as somatic anxiety in both groups. The action of tianeptine on anxious-depressive symptomatology was confirmed by the concomitant improvement of global clinical rating and patients' self-rating (HSCL). Statistical comparison of all clinical rating-scale scores in patients having completed the trial failed to show any significant group differences.(ABSTRACT TRUNCATED AT 250 WORDS)


Assuntos
Amitriptilina/uso terapêutico , Transtornos de Ansiedade/tratamento farmacológico , Transtorno Depressivo/tratamento farmacológico , Tiazepinas/uso terapêutico , Adulto , Idoso , Transtornos de Ansiedade/psicologia , Transtorno Depressivo/psicologia , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Multicêntricos como Assunto , Escalas de Graduação Psiquiátrica , Ensaios Clínicos Controlados Aleatórios como Assunto
12.
Int Clin Psychopharmacol ; 2(2): 103-9, 1987 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-3110264

RESUMO

Following a multicentre double-blind controlled trial comparing the effects of fluvoxamine and imipramine in depressed inpatients (M.D.E.) 39 patients continued on longer term treatment with maintenance of double-blind conditions (17 on fluvoxamine, 22 on imipramine). The results regarding the reasons for premature interruption of treatment show a slight advantage in favour of fluvoxamine. There were several significant differences in favour of fluvoxamine at the 20th week. The most common side-effects were hot flushes with imipramine and dizziness with fluvoxamine. Overall, despite the small number of patients, the results show a greater clinical tolerance to fluvoxamine than to imipramine.


Assuntos
Antidepressivos/uso terapêutico , Transtorno Depressivo/tratamento farmacológico , Imipramina/uso terapêutico , Oximas/uso terapêutico , Ensaios Clínicos como Assunto , Transtorno Depressivo/psicologia , Método Duplo-Cego , Feminino , Fluvoxamina , Humanos , Assistência de Longa Duração , Masculino , Pessoa de Meia-Idade , Escalas de Graduação Psiquiátrica
13.
Sleep ; 10 Suppl 1: 73-8, 1987.
Artigo em Inglês | MEDLINE | ID: mdl-3326118

RESUMO

A randomized, double-blind, comparative trial of zopiclone versus nitrazepam was conducted in 74 geriatric chronic insomniac patients. Following a 7-day wash-out period, two parallel groups, successively received a placebo for 7 days, then either 7.5 mg zopiclone or 5 mg nitrazepam for another 7-day period. Efficacy on sleep was assessed by a sleep analogue scale and the Spiegel Sleep Questionnaire, residual effects by psychometric tests and tolerance by a standardized question, as well as by clinical and laboratory tests. Zopiclone and nitrazepam were more active than placebo on all tests of efficacy. In contrast with nitrazepam, zopiclone was devoid of effect on neurological function. In addition, the condition on awakening was better with zopiclone.


Assuntos
Hipnóticos e Sedativos/uso terapêutico , Nitrazepam/uso terapêutico , Piperazinas/uso terapêutico , Distúrbios do Início e da Manutenção do Sono/tratamento farmacológico , Idoso , Compostos Azabicíclicos , Ensaios Clínicos como Assunto , Método Duplo-Cego , Avaliação de Medicamentos , Tolerância a Medicamentos , Feminino , Humanos , Hipnóticos e Sedativos/administração & dosagem , Masculino , Nitrazepam/administração & dosagem , Nitrazepam/efeitos adversos , Piperazinas/administração & dosagem , Sono/efeitos dos fármacos , Vigília/efeitos dos fármacos
14.
Sleep ; 10 Suppl 1: 7-21, 1987.
Artigo em Inglês | MEDLINE | ID: mdl-3438645

RESUMO

Zopiclone, a new hypnotic cyclopyrrolone, undergoes extensive hepatic metabolism. The carrier of hypnotic activity is the parent compound; however, knowledge of its metabolic profile is essential for the understanding of pharmacokinetic changes in various pathophysiological conditions. In 45 healthy young volunteers, zopiclone had a Tmax of 0.5. A first-pass effect of 20% resulted in an absolute bioavailability, F, of 77%. The volume of distribution ratio Vdc/Vdt was 3.2. The plasma half-life (t1/2) was 5.1 h. A metabolic ratio of 3.7 and 4.6 was found for the two main urinary metabolites, N-oxide and N-desmethyl derivatives. No modifications of kinetics were seen after chronic treatment. In eight patients with liver insufficiency, the main changes (delayed Tmax, 3.5 h, higher plasma concentrations with an increased F of 97%, prolonged t1/2 of 8.4 h) were essentially due to a reduced hepatic metabolic clearance, as shown by a decreased metabolic ratio for the two main metabolites. In 18 patients with renal insufficiency, the only major modification was an increased bioavailability (F of 115%) probably due to a relative decrease of the Vdc. In 19 elderly subjects, the main findings were a decreased metabolic clearance, as shown by decreased metabolic ratios, and an inversion of the Vdc/Vdt ratio, evoking the changes seen in renal insufficiency. The increase in F (168%) and the age-dependent increase in plasma t1/2 (8.1 h) in the oldest subjects (over 74 years of age) can be explained by this double mechanism. On the basis of these findings, a reduction of the initial zopiclone dose from 7.5 to 3.5 mg/day is recommended for patients with severe liver insufficiency and patients over 70 years of age with liver insufficiency.


Assuntos
Hipnóticos e Sedativos/farmacocinética , Nefropatias/metabolismo , Hepatopatias/metabolismo , Piperazinas/farmacocinética , Adulto , Fatores Etários , Idoso , Animais , Compostos Azabicíclicos , Disponibilidade Biológica , Cães , Meia-Vida , Humanos , Hipnóticos e Sedativos/administração & dosagem , Hipnóticos e Sedativos/metabolismo , Taxa de Depuração Metabólica , Piperazinas/administração & dosagem , Piperazinas/metabolismo , Coelhos , Ratos
17.
Pharmacol Biochem Behav ; 23(4): 653-9, 1985 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-2866546

RESUMO

Among the non-benzodiazepine compounds which have been found to interact with the "GABA receptor-BZ receptor-chloride channel complex," the very chemically original cyclopyrrolone family has a special place. This has been demonstrated using selected pharmacological, biochemical and clinical data obtained with two cyclopyrrolones, zopiclone and suriclone, which, in addition to their capacity of displacing BZ from their sites, simultaneously possess the main pharmacological properties of BZ and well established therapeutic activities, as hypnotic and anxiolytic, respectively. However, although cyclopyrrolones recognize BZ receptor sites, their mechanism of action might not exactly fit with that of BZ. Indeed, using tritiated zopiclone and suriclone, it has been shown that they could act on sites distinct from those of BZ or could induce receptor conformational changes different from those induced by BZ.


Assuntos
Hipnóticos e Sedativos/farmacologia , Piperazinas/farmacologia , Agressão/efeitos dos fármacos , Animais , Ansiolíticos , Anticonvulsivantes , Transtornos de Ansiedade/tratamento farmacológico , Compostos Azabicíclicos , Sítios de Ligação , Encéfalo/metabolismo , Humanos , Hipnóticos e Sedativos/metabolismo , Hipnóticos e Sedativos/uso terapêutico , Camundongos , Camundongos Endogâmicos , Relaxantes Musculares Centrais , Naftiridinas , Piperazinas/metabolismo , Piperazinas/uso terapêutico , Ratos , Receptores de GABA-A/metabolismo , Compostos de Enxofre , Ácido gama-Aminobutírico/fisiologia
19.
J Affect Disord ; 7(2): 159-71, 1984 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-6238071

RESUMO

The present report presents a computerized system, permitting recording of diagnostic criteria and assignment by diagnostic algorithms as proposed and intended in 7 different classification systems of depression. The potential of the procedure for comparing alternative classifications of depression is presented and discussed.


Assuntos
Transtorno Depressivo/diagnóstico , Diagnóstico por Computador/métodos , Humanos
20.
Ann Med Psychol (Paris) ; 142(6): 902-7, 1984 Jun.
Artigo em Francês | MEDLINE | ID: mdl-6549253

RESUMO

A computer program is described which has been developed over several years and allows for the easy processing of psychiatric data gathered in clinical trials. It provides user-defined parametrization of a computer-aided data entry system, the use of the program created to input data to the computer and the data processing of the data collected either through modifications of the file created or by statistical analysis, the procedures of which have been simplified to enable its performance even by lay people.


Assuntos
Ensaios Clínicos como Assunto , Computadores , Transtornos Mentais/terapia , Psiquiatria , Software , Processamento Eletrônico de Dados , Humanos
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