Acta clinica Croatica
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Acta clinica Croatica · Sep 2012
Evaluation of importance of door-to-balloon time and total ischemic time in acute myocardial infarction with ST-elevation treated with primary percutaneous coronary intervention.
The aim of the study was to evaluate the influence of door-to-balloon time and symptom onset-to-balloon time on the prognosis of patients with acute ST-elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention (PCI) in the Croatian Primary PCI Network. A total of 1190 acute STEMI patients treated with primary PCI were prospectively investigated in eight centers across Croatia (677 non-transferred, 513 transferred). All patients were divided according to door-to-balloon time in three subgroups (< 90, 90-180, and > 180 minutes) and according to symptom onset-to-balloon time in three subgroups (<180, 180-360, and > 360 minutes). ⋯ Considering the symptom onset-to-balloon time subgroups, a statistically significant difference at multivariate level was highest for in-hospital mortality in the subgroup of patients with longest onset-to-balloon time (4.5 vs. 2.6 vs. 5.7%; p = 0.04). Door-to-balloon time is one of the metrics of organization quality of primary PCI network and targets for quality improvement, but without an impact on early and six-month follow-up results of treatment for acute STEMI. Symptom onset-to-balloon time is more accurate for this purpose; unfortunately, reduction of the symptom onset-to-balloon time is more complex than reduction of the former.
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The purpose of this review is to compare old conventional techniques and devices for difficult airway management and new sophisticated techniques and devices. Recent techniques and devices are defined as the American Society of Anesthesiology (ASA) practice guidelines for the management of difficult airway, published in 1992, reviewed in 1993 and updated in 2003. According to ASA, the techniques for difficult airway management are divided into techniques for difficult intubation and techniques for difficult ventilation. ⋯ Airway gadgets are lighted stylets and endotracheal tube guides. The principal conclusion of this review is that utilization of these devices can be easily learned. The technique of indirect laryngoscopy is currently used for managing difficult airway in the operating room as well as for securing the airway in daily anesthesia routine.
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Airway management relates to the period of tracheal intubation, maintenance of endotracheal tube in situ, and finally extubation. Problems related to difficult extubation still pose significant challenge for both anesthesiologists and intensivists. This article reviews current approach to extubation strategy following difficult intubation. Guidelines and algorithm may be helpful in order to ensure safe management of the patient during this delicate period of airway management.
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Acta clinica Croatica · Sep 2012
Huge multinodular goiter with mid trachea obstruction: indication for fiberoptic intubation.
Goiter or thyromegaly is one of the most common causes of mid tracheal obstruction (external compression or stenosis), which may be associated with difficult larynx visualization and/or difficult airway management, depending on the goiter size, type and ingrowth into the surrounding tissue. Iodine deficiency disorders are still one of the most common causes of goiter in the population of the African continent. These patients with goiter generally present for medical examination at an advanced stage of the disease. ⋯ Only two predicting factors for difficult airway assessment were identified in these patients: cancerous goiter (especially if compressive signs are present) and Cormack and Lehane grade III/IV. The indication for fiberoptic intubation is tracheal compression or initial tracheal stenosis. Conventional tracheostomy has to be performed in goiter patients with identified tracheomalacia and/or high degree or tracheal stenosis.
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Airway management in the intensive care unit (ICU) is a challenging procedure and is frequently associated with life threatening complications. The incidence of difficult intubations ranges from 10% to 22%, depending on the setting and the patients in need of endotracheal intubation. Multiple attempts are often needed to secure the airway. ⋯ Parts of this protocol are appropriate staffing, pre-oxygenation and strategies to avoid cardiovascular complications. In conclusion, high practical skill of airway management is needed in critically ill patients. Monitoring such as capnography and alternative equipment for securing the airway is not just mandatory in the operating room but also in the ICU.