BACKGROUND: Electrolytic ablation (EA) destroys tissues through extreme pH changes in the local microenvironment. An ex vivo perfused liver model was used to assess the systemic effects of EA on the acid-base balance without the influence of compensatory organs (lungs and kidneys). METHODS: Eleven pigs were perfused extracorporeally at 39°C with autologous blood; 4 also underwent EA after 1 hour of reperfusion. Arterial blood samples were obtained hourly. RESULTS: pH and CO(2) levels did not change throughout the experiments. A significant increase of HCO(3)-, anion gap, base excess, and lactate was present after the third hour. No differences were observed between EA experiments and controls. CONCLUSIONS: EA does not alter the acid-base balance even when the confounding influence of compensatory organs is removed. Such findings should be considered when planning ablations in patients with renal failure or respiratory diseases in which EA could avoid undesirable metabolic changes.
BACKGROUND: Electrolytic ablation (EA) destroys tissues through extreme pH changes in the local microenvironment. An ex vivo perfused liver model was used to assess the systemic effects of EA on the acid-base balance without the influence of compensatory organs (lungs and kidneys). METHODS: Eleven pigs were perfused extracorporeally at 39°C with autologous blood; 4 also underwent EA after 1 hour of reperfusion. Arterial blood samples were obtained hourly. RESULTS: pH and CO(2) levels did not change throughout the experiments. A significant increase of HCO(3)-, anion gap, base excess, and lactate was present after the third hour. No differences were observed between EA experiments and controls. CONCLUSIONS:EA does not alter the acid-base balance even when the confounding influence of compensatory organs is removed. Such findings should be considered when planning ablations in patients with renal failure or respiratory diseases in which EA could avoid undesirable metabolic changes.
Authors: Wen Yuan Chung; Amar M Eltweri; John Isherwood; Jonathan Haqq; Seok Ling Ong; Gianpiero Gravante; David M Lloyd; Matthew S Metcalfe; Ashley R Dennison Journal: J Vis Exp Date: 2013-12-18 Impact factor: 1.355
Authors: Gianpiero Gravante; Seok Ling Ong; Kevin West; Angus McGregor; Guy J Maddern; Matthew S Metcalfe; David M Lloyd; Ashley R Dennison Journal: Pathol Oncol Res Date: 2012-06-17 Impact factor: 3.201
Authors: Nicholas R Perkons; Elliot J Stein; Chike Nwaezeapu; Joseph C Wildenberg; Kamiel Saleh; Roni Itkin-Ofer; Daniel Ackerman; Michael C Soulen; Stephen J Hunt; Gregory J Nadolski; Terence P Gade Journal: Commun Biol Date: 2018-05-17