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Nicotine replacement therapy … - Carlos A ... - Entretiens du Carla

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(27) Broms U et al.<br />

Smoking re<strong>du</strong>ction<br />

predicts cessation.<br />

Longitudinal evidence<br />

from the Finish a<strong>du</strong>lt<br />

twin cohort. 2008; 10:<br />

423-27.<br />

(28)<br />

Stead LF et al.<br />

Interventions to re<strong>du</strong>ce<br />

harm from continued<br />

tobacco use. Cochrane<br />

Database System<br />

Review. CD 005231.<br />

12007.<br />

(29)<br />

Rigotti N et al.<br />

Predictors of smoking<br />

cessation after coronary<br />

artery bypass graft<br />

surgery. Results of a<br />

randomized trial with 5<br />

year follow up. An<br />

Interm Med 1994; 120:<br />

287-293.<br />

(30)<br />

Warner DO et al.<br />

Smoking behabiour and<br />

perceived stress in<br />

cigarettes smokers<br />

undergoing elective<br />

surgery. Anesthesiology<br />

2004; 100: 1125-1137.<br />

Table 1-Smoking as a contributing factor for perioperative complications<br />

1. - Pulmonary complications. The increase in the relative risk (RR) is 1.7.<br />

1.1.- Smokers can suffer from smoking related respiratory pathology.<br />

1.2.- Even “healthy” smokers can suffer from:<br />

1.2.1.- Impaired ciliary function.<br />

1.2.2.- Increased mucus pro<strong>du</strong>ction.<br />

1.2.3.- Retained secretions.<br />

1.2.4.- Alterations in lung inmune responses.<br />

2.- Cardiovascular complications. The increase in the relative risk (RR) is 3.<br />

2.1.- Smokers can suffer from smoking related cardiovascular disorders.<br />

2.2.- Even “healthy” smokers can suffer from:<br />

2.2.1.- Endothelial damage.<br />

2.2.2.- Oxidant injury.<br />

2.2.3.- Neutrophil activation.<br />

2.2.4.- Enhacement of thrombosis.<br />

2.2.5.- Enhacement of aterosclerosis.<br />

2.2.6.- Increasing coagulability.<br />

2.2.7.- Increasing simpathetic tone.<br />

2.2.8.- Decreasing the capacity of blood to carry oxygen.<br />

3.- Complications related to impaired healing of bones and surgical wounds.<br />

The increase in the relative risk (RR) is 2.<br />

3.1.- Smokers can suffer from smoking related wounds disorders. Among these:<br />

wound dehiscence and infection, and nonunion of fractured bones.<br />

3.2.- Even “healthy” smokers can suffer from:<br />

3.2.1.- Decreasing tissue oxygenation secondary to vasoconstriction,<br />

carboxyhemoglobin and inhibition of inmune responses.<br />

An important recent investigation studied<br />

experimental wounds in smokers.<br />

One group of smokers continued smoking,<br />

another group stopped smoking without<br />

using NRT and another group quit smoking<br />

using NRT.<br />

Abstinence from smoking substantially<br />

decreased the rate of wound infection,<br />

whether or not NRT was used (26).<br />

This study supports the idea that NRT is<br />

safe in these patients.<br />

Taking into account all of these<br />

considerations we can conclude that NRT<br />

should considered for helping surgical patients<br />

maintain abstinence before and after surgery.<br />

68

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