Transversus Abdominis Plane Catheter Bolus Analgesia after Major Abdominal Surgery

Table 1

Baseline characteristics (𝑛=15).

Gender (M/F)	7/8
Age (yr)	66 (54–81)
ASA
I	3
II	6
III	6
Body mass index	27.0 (21.1–36.4)
Duration of surgery (min)	130 (65–240)
Blood loss during surgery (mL)	200 (25–2200)
Comorbidity* (n)	13
Arterial hypertension	6
Other cardiac disease	2
Chronic obstructive pulmonary disease	2
Previous stroke	3
Diabetes	1
Other comorbidity^†	9
Preoperative consumption of opioids (n)	3

*5 patients had one comorbidity and 8 patients had two or more comorbidities.
^†Other co-morbidity included myxoedema, arthritis, benign prostatic hyperplasia, former deep venous thrombosis, dyspepsia, and previous pulmonary tuberculosis.
Values are median (range), otherwise absolute number of cases recorded. ASA = American Society of Anesthesiologists.