RESUMO
We report the case of a patient who underwent third time revision of double heart valve replacement. Mediastinal dissection for right atrium cannulation was complicated by laceration of the superior vena cava; this required temporary rescue clamping of the vessel. The patient suffered complete visual loss related to bilateral retrobulbar haematoma. Acute elevation of superior vena cava pressure due to vascular clamping and administration of large amounts of fluid through the central venous jugular catheter could have caused the postoperative visual loss.
Assuntos
Cegueira/etiologia , Procedimentos Cirúrgicos Cardíacos/efeitos adversos , Hematoma/complicações , Hipotensão/complicações , Mediastino/cirurgia , Complicações Pós-Operatórias/etiologia , Constrição , Feminino , Hidratação/métodos , Implante de Prótese de Valva Cardíaca/efeitos adversos , Humanos , Pessoa de Meia-Idade , Reoperação , Hemorragia Retrobulbar/complicações , Choque Hemorrágico/complicações , Tomografia Computadorizada por Raios X/métodos , Veia Cava Superior/lesõesRESUMO
BACKGROUND: We designed a prospective randomized single-blind study to compare efficiency and post-operative upper airway morbidity when the laryngeal mask airway (LMA) Supreme is used as an alternative to the endotracheal tube (ETT). METHODS: One hundred and thirty-eight elective pelvic laparoscopic ASA I-II female patients were assigned to receive either the LMA Supreme or the ETT for airway management. Balanced anesthesia and ventilation techniques were standardized to control end-tidal CO(2) and BIS value in the range 4.5-5 kPa and 40-50, respectively, and to maintain adequate hemodynamic stability. A single surgeon blinded to the airway management technique performed all surgical procedures. The ventilation efficiency of each airway was evaluated. Anesthesia- and surgery-related times were calculated and anesthesia details were recorded. Post-operative pain and pharyngolaryngeal morbidity were measured in a blind fashion using a numerical rating scale (NRS) (0-100). RESULTS: Surgery duration was similar in both groups. Airway management duration was shorter with the LMA Supreme. Post-operative pharyngolaryngeal morbidity incidence and all symptoms' intensity were significantly increased after ETT as compared with LMA Supreme anesthesia. At the end of the PACU stage, the incidence and mean NRS of post-operative hoarseness were reduced when LMA Supreme was used as an alternative to the ETT (16% vs. 47%; P<0.01 and 9 vs. 19, P<0.01, respectively). CONCLUSION: We demonstrated that choosing an LMA Supreme was an efficient pharyngolaryngeal morbidity-sparing strategy. Moreover, we showed that the LMA Supreme and the ETT were equally effective airways for a routine gynecological laparoscopy procedure.
Assuntos
Procedimentos Cirúrgicos em Ginecologia , Intubação Intratraqueal/instrumentação , Laparoscopia , Doenças da Laringe/prevenção & controle , Máscaras Laríngeas , Adulto , Anestesia Geral , Procedimentos Cirúrgicos Eletivos , Feminino , Seguimentos , Conteúdo Gastrointestinal , Rouquidão/etiologia , Humanos , Doenças da Laringe/etiologia , Medição da Dor , Dor Pós-Operatória/etiologia , Doenças Faríngeas/etiologia , Doenças Faríngeas/prevenção & controle , Faringite/etiologia , Complicações Pós-Operatórias , Estudos Prospectivos , Respiração , Método Simples-Cego , Estômago , Sucção , Fatores de Tempo , Resultado do TratamentoRESUMO
BACKGROUND: The Airtraq laryngoscope is designed to allow visualization of the glottis without alignment of the oral, pharyngeal, and laryngeal axes. We hypothesized that this new airway device would facilitate tracheal intubation of morbidly obese patients. We compared tracheal intubation performance of standard Macintosh laryngoscope with the Airtraq laryngoscope in morbidly obese patients. METHODS: One hundred and six consecutive ASA I-III morbidly obese patients undergoing surgery were randomized to intubation with the Macintosh laryngoscope or the Airtraq laryngoscope. Induction of anaesthesia was standardized. If tracheal intubation failed within 120 s with the Macintosh or Airtraq , laryngoscopes were switched. Success rate, SpO2, duration of tracheal intubation, and quality of airway management were evaluated and compared between the groups. RESULTS: Preoperative characteristics of the patients were similar in both groups. In the Airtraq group, tracheal intubation was successfully carried out in all patients within 120 s. In the Macintosh laryngoscope group, six patients required intubation with the Airtraq laryngoscope. The mean (SD) time taken for tracheal intubation was 24 (16) and 56 (23) s, respectively, with the Airtraq and Macintosh laryngoscopes, (P<0.001). SpO2 was better maintained in the Airtraq group than in the Macintosh laryngoscope group with one and nine patients, respectively, demonstrating drops of SpO2 to 92% or less (P<0.05). CONCLUSIONS: In this study, the Airtraq laryngoscope shortened the duration of tracheal intubation and prevented reductions in arterial oxygen saturation in morbidly obese patients.
Assuntos
Intubação Intratraqueal/instrumentação , Laringoscópios , Obesidade Mórbida/complicações , Adulto , Idoso , Pressão Sanguínea , Índice de Massa Corporal , Equipamentos Descartáveis , Desenho de Equipamento , Feminino , Frequência Cardíaca , Humanos , Hipóxia/etiologia , Intubação Intratraqueal/efeitos adversos , Masculino , Pessoa de Meia-Idade , Obesidade Mórbida/fisiopatologia , Oxigênio/sangue , Estudos Prospectivos , Fatores de TempoRESUMO
AIMS: The objective of this study was to demonstrate that fish-processing by-products could be used as sole raw material to sustain the growth of Staphylococcus xylosus for lipase production. METHODS AND RESULTS: Bacterial growth was tested on supernatants generated by boiling (100 degrees C for 20 min) of tuna, sardine, cuttlefish and shrimp by-products from fish processing industries. Among all samples tested, only supernatants generated from shrimp and cuttlefish by-products sustained the growth of S. xylosus. Shrimp-based medium gave the highest growth (A(600) = 22) after 22 h of culture and exhibited the maximum lipase activity (28 U ml(-1)). This effect may be explained by better availability of nutrients, especially, in shrimp by-products. Standard medium (SM) amendments to sardine and tuna by-product-based media stimulated the growth of S. xylosus and the highest A(600) values were obtained with 75% SM. Lipase activity, however, remained below 4 U ml(-1) for both sardine and tuna by-product-based media. CONCLUSIONS: Fish by-products could be used for the production of highly valuable enzymes. SIGNIFICANCE AND IMPACT OF THE STUDY: The use of fish by-products in producing S. xylosus-growth media can reduce environmental problems associated with waste disposal and, simultaneously, lower the cost of biomass and enzyme production.
Assuntos
Proteínas de Bactérias/metabolismo , Indústria de Processamento de Alimentos , Lipase/metabolismo , Staphylococcus/enzimologia , Gerenciamento de Resíduos/métodos , Animais , Meios de Cultura/análise , Meios de Cultura/metabolismo , Peixes , Resíduos Industriais/análise , Staphylococcus/crescimento & desenvolvimento , Staphylococcus/metabolismoRESUMO
INTRODUCTION: We have prospectively compared simulated-difficult tracheal intubation characteristics of four glottiscopes: Airtraq, GlideScope, McGrath, LMA CTrach with that of the conventional Macintosh laryngoscope. STUDY DESIGN: prospective with the airway devices proposed in a randomly assigned order. MATERIALS AND METHOD: Forty-two physicians, naïve to glottiscope handling accepted participating this study after the learning curve of each airway device was completed. Participants were requested to perform two series of five tracheal intubations on the manikin Airman, the first in standard situation and the second in difficult tracheal intubation simulation. The airway devices were chosen in a randomly assigned order. For each airway tool, the following tracheal intubation characteristics were recorded: laryngeal exposure quality, tracheal intubation and apnea durations. A performance index was calculated and a tracheal intubation difficulty was measured during simulation. RESULTS: More than 1600 supervised tracheal intubations were performed, including 1000 for the learning process of the glottiscopes, which was completed after 10 uses on the manikin. During standard situation, laryngeal exposure quality was similar with the five airway devices. As compared to the Macintosh laryngoscope, GlideScope, McGrath, tracheal intubation duration was shorter (p<0.05) with the Airtraq and longer (p<0.01) with the LMA CTrach. During difficult tracheal intubation simulation, laryngeal exposure and tracheal intubation duration was of better quality and shorter with the four glottiscopes as compared to that of LM, respectively. Performance index during difficult tracheal intubation simulation simulation was significantly more important (p<0.01) with the Airtraq and the LMA CTrach. Airtraq and Macintosh laryngoscope were respectively the simplest (p<0.01) and the most difficult (p<0.01) airway devices to manage a simulated difficult tracheal intubation. CONCLUSION: When difficult airway was simulated on the manikin, the four glottiscopes were superior to the Macintosh laryngoscope to improve laryngeal exposure quality and to reduce duration of tracheal intubation. Airtraq and the LMA CTrach both demonstrated remarkable advantage over GlideScope and McGrath for simulated difficult intubation management.
Assuntos
Glote , Intubação Intratraqueal/métodos , Laringoscópios , Manequins , Desenho de Equipamento , Humanos , Estudos ProspectivosRESUMO
BACKGROUND: Because the intensity of neuromuscular block at the diaphragm (DIA) is indirectly assessed, the electromyographic measurements of the DIA (DIA(EMG)) from surface electrodes were related to information provided by visual estimation of neuromuscular transmission at the adductor pollicis (AP) and the corrugator supercilii (CSC) during recovery from vecuronium block. METHODS: Twelve adult patients were studied during balanced anaesthesia. After induction of anaesthesia and tracheal intubation without neuromuscular blocking agent, supramaximal stimulations were applied to phrenic, ulnar and facial nerves. During recovery from vecuronium 0.1 mg kg(-1) an independent observer blinded to DIA(EMG) counted visually detectable train-of-four (TOF) at CSC (TOF(CSC)) and post-tetanic AP (PTC(AP)) responses. Times to recovery of PTC(AP) = 1, Assuntos
Período de Recuperação da Anestesia
, Diafragma/efeitos dos fármacos
, Músculo Esquelético/efeitos dos fármacos
, Fármacos Neuromusculares não Despolarizantes/farmacologia
, Brometo de Vecurônio/farmacologia
, Adulto
, Idoso
, Diafragma/fisiologia
, Estimulação Elétrica/métodos
, Eletromiografia/efeitos dos fármacos
, Músculos Faciais/efeitos dos fármacos
, Músculos Faciais/fisiologia
, Feminino
, Humanos
, Masculino
, Pessoa de Meia-Idade
, Monitorização Fisiológica/métodos
, Músculo Esquelético/fisiologia
, Bloqueio Neuromuscular
, Junção Neuromuscular/efeitos dos fármacos
, Cuidados Pós-Operatórios/métodos
, Método Simples-Cego