Rev Bras AnestesiolINFORMAÇÃO CLÍNICA 2008; 58: 2: 165-171 CLINICAL REPORT RESUMO Bisinotto FMB, Cardoso RP, Abud TMV -Edema Agudo Pulmonar Associado à Obstrução das Vias Aéreas. Relato de Caso. JUSTIFICATIVA E OBJETIVOS:O edema pulmonar por pressão negativa tem sido definido como edema não-cardiogênico, com transudação de líquido para o interstício pulmonar, por aumento na pressão negativa intratorácica, ocasionado pela obstrução das vias aéreas superiores. Descreveu-se o caso de paciente hígida, submetida à anestesia geral, que apresentou edema agudo pulmonar após a extubação traqueal. RELATO DO CASO:Paciente de 23 anos, sexo feminino, estado físico ASA II, submetida à anestesia geral para videolaparoscopia ginecológica. O procedimento durou 3 horas, sem intercorrências. Após a extubação, a paciente apresentou laringoespasmo e diminuição da saturação de oxigênio. Houve melhora após colocação de cânula oral e administração de oxigênio, sob pressão positiva, com máscara facial. Estabilizado o quadro, foi encaminhada à sala de recuperação pós-anestésica, onde, logo após a admissão, apresentou edema agudo de pulmão com eliminação de secreção serossanguinolenta. O tratamento constou de elevação do dorso, oxigênio sob máscara, furosemida e restrição hídrica. A radiografia torácica mostrou imagem compatível com edema agudo pulmonar e área cardíaca normal. O eletrocardiograma (ECG), ecocardiografia e enzimas cardíacas estavam normais. A paciente apresentou boa evolução, recebendo alta hospitalar no dia seguinte, assintomática.CONCLUSÕES: O edema agudo de pulmão associado à obstrução das vias aéreas superiores é condição clínica que pode agravar procedimentos cirúrgicos de baixa morbidade e que aparece sobretudo em pacientes jovens. O tratamento deve ser instituído precocemente, pois a resolução também é rápida e, na maioria das vezes, sem seqüelas.Unitermos: COMPLICAÇÕES: edema pulmonar; VIAS AÉREAS: pressão negativa; obstrução. SUMMARYBisinotto FMB, Cardoso RP, Abud TMV -Acute Pulmonary Edema Associated with Obstruction of the Airways. Case Report. BAKGROUND AND OBJECTIVES:Negative pressure pulmonary edema has been defined as non-cardiogenic edema, with transudation of fluid to the interstitial space of the lungs due to an increase in negative intrathoracic pressure secondary to obstruction of the upper airways. This is the case of a healthy patient who underwent general anesthesia and developed acute pulmonary edema after extubation. CASE REPORT:A 23-year old female patient, physical status ASA II, underwent gynecologic videolaparoscopy under general anesthesia. The procedure lasted 3 hours without intercurrence. After extubation the patient developed laryngeal spasm and reduction in oxygen saturation. The patient improved after placement of an oral cannula and administration of oxygen under positive pressure with a face mask. Once the patient was stable she was transferred to the recovery room where, shortly after her arrival, she developed acute pulmonary edema with elimination of bloody serous secretion. Treatm...
Tracheobronchial consequences of the use of heat and moisture exchangers in dogsPurpose: To determine the effect of heat and moisture exchange (HME) on the tracheobronchial tree (TBT) using a unidirectional anesthesic circuit with or without CO 2 absorber and high or low fresh gas flow (FGF), in dogs. Methods: Thirty-two dogs were randomly allocated to four groups: G I (n=8) valvular circuit without CO 2 absorber and high FGF (5 L'min-~); G2 (n=8) as G I with HME; G3 (n=8) circuit with CO 2 absorber with a low FGF (I L.min-~); G4 (n=8) as G3 with HME. Anesthesia was induced and maintained with pentobarbital. Tympanic temperature CI-I-), inhaled gas temperature (IGT), relative (RH) and absolute humidity (AH) of inhaled gas were measured at 15 (control), 60, 120 and 180 rain of controlled ventilation. Dogs were euthanized and biopsies in the areas of TBT were performed by scanning electron microscopy. Results: The G2 and G4 groups showed the highest AH (> 20 mgH20' L -I) and G I the lowest (< 10 mgH20' L -j) and G3 was intermediate (< 20 mgH20-L-~ ) (P < 0.01). There was no difference of-l-i-and IGT among groups. Alterations of the mucociliary system were greatest in G I, least in G2 and G4, and intermediate in G3. Conclusion: In dogs, introduction of HME to a unidirectional anesthetic circuit with/without CO 2 absorber and high or low FGF preserved humidity of inspired gases. HME attenuated but did not prevent alterations of the mucociliary system of the TBT.
The increase in LMA intracuff pressure caused only mild alterations in the laryngopharyngeal mucosa of the dog.
Headache is the most frequent complication after spinal anesthesia and it is considered of benign evolution. In many cases however, it leads to the late or absent diagnosis of potentially fatal conditions, like subdural hematoma. This case describes a rare case of an acute subdural hematoma following spinal anesthesia with fine-gauge needle in a patient without risk factors for bleeding.
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