RESUMO
PURPOSE: Previous clinical trials suggested that inhaled nitric oxide (iNO) could have beneficial effects in sickle cell disease (SCD) patients with acute chest syndrome (ACS). METHODS: To determine whether iNO reduces treatment failure rate in adult patients with ACS, we conducted a prospective, double-blind, randomized, placebo-controlled clinical trial. iNO (80 ppm, N = 50) gas or inhaled nitrogen placebo (N = 50) was delivered for 3 days. The primary end point was the number of patients with treatment failure at day 3, defined as any one of the following: (1) death from any cause, (2) need for endotracheal intubation, (3) decrease of PaO2/FiO2 ≥ 15 mmHg between days 1 and 3, (4) augmented therapy defined as new transfusion or phlebotomy. RESULTS: The two groups did not differ in age, gender, genotype, or baseline characteristics and biological parameters. iNO was well tolerated, although a transient decrease in nitric oxide concentration was mandated in one patient. There was no significant difference in the primary end point between the iNO and placebo groups [23 (46 %) and 29 (58 %); odds ratio (OR), 0.8; 95 % CI, 0.54-1.16; p = 0.23]. A post hoc analysis of the 45 patients with hypoxemia showed that those in the iNO group were less likely to experience treatment failure at day 3 [7 (33.3 %) vs 18 (72 %); OR = 0.19; 95 % CI, 0.06-0.68; p = 0.009]. CONCLUSIONS: iNO did not reduce the rate of treatment failure in adult SCD patients with mild to moderate ACS. Future trials should target more severely ill ACS patients with hypoxemia. CLINICAL TRIAL REGISTRATION: NCT00748423.
Assuntos
Síndrome Torácica Aguda/tratamento farmacológico , Fatores Relaxantes Dependentes do Endotélio/administração & dosagem , Óxido Nítrico/administração & dosagem , Síndrome Torácica Aguda/etiologia , Administração por Inalação , Adulto , Anemia Falciforme/complicações , Método Duplo-Cego , Feminino , Humanos , Masculino , Estudos Prospectivos , Adulto JovemAssuntos
Acetamidas/efeitos adversos , Acidose Láctica/induzido quimicamente , Anti-Infecciosos/efeitos adversos , Oxazolidinonas/efeitos adversos , Acetamidas/administração & dosagem , Acetamidas/uso terapêutico , Idoso , Anti-Infecciosos/administração & dosagem , Anti-Infecciosos/uso terapêutico , Evolução Fatal , Humanos , Linezolida , Masculino , Oxazolidinonas/administração & dosagem , Oxazolidinonas/uso terapêutico , Infecção da Ferida Cirúrgica/tratamento farmacológicoRESUMO
We report the case of a 68 years old patient with platypnea orthodeoxia syndrome who has been clinically suspected on cutaneous saturation position's variation. It has been confirmed by transthoracic and transesophageal echocardiography (TEE). TEE showed the size of patent foramen ovale (PFO), visualised the right to left shunt. A right heart angiography confirmed echocardiographic data and allowed successful closure by a Cardioseal percutaneous transcatheter button device implantation. Symptom's disappearance and a TEE control after 2 months confirmed the success of the procedure.
