Table 2.

Publication-based academic interest in various regional analgesia techniques for the treatment of postoperative pain.

#	Name	Number of Articles 2018-2022	IC 2018-2022	PI
				88-92	+ 93-97	98-02	03-07	08-12	13-17	18-22
1	Erector spinae plane block	611	>100	-------	-------	-------	------	-------	0.04	1.41
2	TAP block	394	65	-------	-------	-------	-------	0.38	0.80	0.91
3	Paravertebral block	344	>100	-------	-------	-------	0.24	0.43	0.59	0.79
4	Brachial plexus block	285	>100	-------	0.27	0.40	0.41	0.40	0.46	0.66
5	Quadratus lumborum block	280	>100	-------	-------	-------	-------	-------	0.10	0.65
6	Femoral nerve block	207	-15	-------	-------	0.25	0.41	0.51	0.82*	0.48
7	Local infiltration analgesia	173	57	-------	-------	-------	-------	0.18	0.37	0.40

Note: IC – Index of change, the percentage change in the number of articles on a specific drug during 2018-2022 period compared with the previous 5-year period (2013-2017). PI – Popularity index, popularity of a drug among the authors of articles on postoperative pain. It represents the percentage of articles on a drug among all articles in the related area published over the same time period. + Initial sustained rise of unintentional opioid mortality. TAP—Transversus Abdominis Plane Block *Previous maximum (if above 2018-2022 value). In bold -- if above 2013-2017 value.