Anesthesiology Research and Practice / 2013 / Article / Tab 2

Clinical Study

Real-Time Ultrasound-Guided Spinal Anaesthesia: A Prospective Observational Study of a New Approach

Table 2

Predicted difficulty of spinal anaesthesia.

Anaesthetists subjective prediction of DifficultyEasy64
Difficult36

Palpability of bony landmarksEasily palpable53
Poorly palpable 35
Impalpable12

Predicted spinal anaesthesia difficulty scoring (after Atallah) Easy (grade 0–3)63
Easy (grade ≥4) 37

Data are presented as n (= %). Atallah’s spinal anaesthesia difficulty score comprises nine difficulty grades. Grade 4 is the difficulty grade at or above which difficulty is expected. Grades are calculated based on the sum of specific scores assigned for BMI, age, bony landmark palpability, radiological characteristics, and spinal deformity [13].

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