PREOPERATIVE SINGLE ANTHROPOMETRIC SCREENING TESTS OF DIFFICULT FACE MASK VENTILATION AND DIFFICULT DIRECT LARYNGOSCOPY INTUBATION IN PATIENTS UNDERGOING OTORHINOLARYNGOLOGICAL SURGERY: A PROSPECTIVE, OBSERVATIONAL, SINGLE CENTER STUDY.

The aim of this study was to assess preoperative airway history data and single anthropometric screening tests of difficult face mask ventilation (FMV) and difficult direct laryngoscopy intubation (DLI) in otorhinolaryngological surgery. Final analysis included 62 patients aged ≥14 years undergoing elective surgery with endotracheal intubation at a single center during a one-month period. Data on difficult intubation history, airway symptoms and pathology related to difficult airway were prospectively collected. Han scoring classification of FMV and Intubation Difficulty Score (IDS) were used. There were 14 (22.6%) patients with a history of current airway tumors or abscesses. Only two (3.2%) patients were preoperatively evaluated as anticipated difficult airway. Both were slightly difficult to ventilate and scored IDS 5 and IDS 8. FMV was graded as easy in 50 (80.5%), slightly difficult in 10 (16.1%) and difficult in 2 (3.2%) cases. There were 29 (46.78%) slightly difficult DLIs and one (1.6%) case of difficult DLI. The study confirmed clinically relevant incidence of difficulties with FMV and DLI in otorhinolaryngologic surgery patients. However, there should be stronger evidence to identify a single preoperative variable predicting difficult airway.

Difficult airway in advanced Bechterew's disease: case report.

Advanced Bechterew's disease presents with increasing ossification of spinal column, from lower lumbar segments upwards, first causing impossibility to place spinal block in lumbar region, and later, due to stiffness of cervical spine, difficult intubation because of inability to extend and/or flex the neck during direct laryngoscopy and intubation. Mask ventilation, on the other hand, usually is possible. We report a case of a 77-year-old man scheduled for elective hernioplasty, with recently advanced Bechterew's disease. According to the recently accepted Mainz algorithm, we first intended to perform awake intubation through the nose by fiber bronchoscope. The bronchoscope passed easily down to tracheal bifurcation, but placing the endotracheal tube was unexpectedly impossible due to the consequences of broken nose the patient had suffered at the age of 8. Fiber bronchoscope was therefore retracted, and we used the Bonfils rigid fiberscope after induction of general anesthesia, achieving intubation in first attempt.

Difficult airway management with bonfils fiberscope in case of emergency: acute abdomen with ileus.

This clinical report describes an emergency case of a 49-year-old man, ASA E III status, with clinical symptoms of acute abdomen and ileus, who was scheduled for urgent surgery. Predictors of difficult intubation (Mallampati test Class III, short thyro-mental (< 6 cm) and sterno-mental distance (<10 cm) with limited mouth opening (inter-incisor gap < 3 cm) were associated with significant comorbidity (rheumatoid arthritis, heart disease, obesity (body mass index 32.6 kg m-2), cervical spine mobility and generalized vascular disease). A specialist experienced in airway management decided on one attempt of Bonfils fiberoptic intubation as primary intervention and urgent tracheotomy, if needed, as secondary intervention. Immediately after assuming supine position on the operating table, the patient lost consciousness and cardiac arrest developed. Successful intubation with oxygenation was followed by cardiopulmonary resuscitation. Upon stabilization of the patient's vital functions, urgent surgery was performed. In the emergency case presented, we succeeded quickly to secure the airway with Bonfils fiberoptic intubation, which allowed for appropriate oxygenation and starting resuscitation. The high risk of the possible aspiration was avoided by timely provision of airway in the experienced anesthetist's hands.

Difficult airway management in a polytraumatized patient with osteogenesis imperfecta and multiple congenital spinal and thoracic deformities and severe kyphoscoliosis: case report.

Airway management in a polytraumatized patient with severe spinal and thoracic deformities demands detailed investigation of anatomical characteristics of the head, neck and airways, as well as thoracic configuration, before attempting endotracheal intubation. This enables the physician to predict a difficult airway and prepare for difficult airway management. We present a case of a 50-year-old polytraumatized patient with multiple congenital bone deformities associated with the syndrome of osteogenesis imperfecta and severe kyphoscoliosis, unable of lying on his back due to gibbus, who was successfully intubated in first attempt using video laryngoscope and only mild sedation. In patients with such severe multiple deformities, the use of video laryngoscope or Bonfils rigid endoscope should be mandatory in order to ensure success of intubation in first attempt and to avoid the possible aspiration of gastric contents.

Superficial versus combined (deep and superficial) cervical plexus block for carotid endarterectomy.

It is not clear if any technique of regional anesthesia for carotid endarterectomy has an advantage over another. Therefore, we analyzed analgesic efficacy side effects and complication rate in patients undergoing carotid surgery either under combined (deep and superficial) or superficial cervical block alone. Data on 324 patients that received either combined (n = 107) or superficial (n = 216) cervical block were prospectively analyzed. Data were collected on the intraoperative Verbal Analog Score (VAS), arterial pressure and heart rate. Analgesic efficacy was additionally assessed by the dose of supplemental 1% lidocaine and fentanyl and time before the first analgesic was administered at Intensive Care Unit. During surgery, VAS was slightly higher in the superficial group (median 0.6, range 0-3.9) than in the combined group (median 0.4, range 0-2.4; p < 0.001). The median supplemental lidocaine dose during the operation was higher in the superficial block group (2.4 mg/kg, range 1.1-3.5) than in the combined group (2.1, range 0.5-3.4 mg/kg; p < 0.001). Supplemental fentanyl was also higher in the superficial block group. There were no between-group differences in the time before the first postoperative analgesic, postoperative VAS and block-related complication rate. Accordingly combined block provided a slightly better analgesia during the surgery which was probably clinically irrelevant. There was no difference in postoperative analgesia and hemodynamic stability. So far, this is the largest prospective study in which superficial cervical block was found to be as efficacious as combined block which is associated with a considerably higher risk of complications.