Table 2.

Dose adjustment of immunosuppressants following bariatric surgery in transplant patients

Organ transplanted	Study (first author, year of publication, reference)	Type of bariatric surgery	Number of patients	Immunosuppressive drug adjustment
Liver	Lin 2013[25]	Sleeve gastrectomy	9	No change
	Lazzati 2015[31]	Not mentioned	56	No change
	Tsamalaidze 2018[36]	LSG	12	No significant change
Kidney	Deogracias 2007[45]	Biliopancreatic diversion	1	No change
	Rogers 2008[46]	Gastric bypass surgery	2	Increased dose for sirolimus, tacrolimus, and mycophenolate mofetil
	Szomstein 2010[37]	Laparoscopic surgery	5	Decreased dose of cyclosporine
	Arias 2010[41]	Laparoscopic gastric bypass	5	No change
	Golomb 2014[18]	Sleeve gastrectomy	10	Two increased dose of tacrolimus and one decreased (based on serum level)
	Gazzetta 2017[42]	Sleeve gastrectomy	6	No change
Heart and kidney	Rex 1991[39]	Vertical banded gastroplasty	1	Changes based on serum level
Heart	Ablassmaier 2002[19]	Laparoscopic gastric banding	1	No change
	Tsamalaidze 2017[32]	Laparoscopic robotic-assisted RYGB, and LSG	2	No change

LSG=Laparoscopic sleeve gastrectomy; RYGB=Roux-en-Y gastric bypass