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  Indian J Med Microbiol
 

Figure 1: (a) Poor sonoanatomy of the erector spinae plane (ESP) despite optimal adjustment of the ultrasound settings, probe selection and manipulation. The ESP is located deeper (>4 cm). The 18G Tuohy needle is vaguely seen in the trajectory pathway. (b) Sonoanatomy of ESP with catheter in a thin lady (unrelated case), a stark difference of sonoanatomy between a lean and an obese patient. (c) Patient B is on non-invasive ventilator support. Inset – The monitors showed drastic reduction of blood pressure after the ESP block because his pain was alleviated and stress response attenuated

Figure 1: (a) Poor sonoanatomy of the erector spinae plane (ESP) despite optimal adjustment of the ultrasound settings, probe selection and manipulation. The ESP is located deeper (>4 cm). The 18G Tuohy needle is vaguely seen in the trajectory pathway. (b) Sonoanatomy of ESP with catheter in a thin lady (unrelated case), a stark difference of sonoanatomy between a lean and an obese patient. (c) Patient B is on non-invasive ventilator support. Inset – The monitors showed drastic reduction of blood pressure after the ESP block because his pain was alleviated and stress response attenuated