BackgroundPersistent postoperative pain (PPP) is defined as persistent pain after surgery of greater than three months’ duration.ObjectivesIdentify the incidence of PPP in our hospital and its associated factors; evaluate quality of life (QoL) and treatment of patients.Patients and MethodsWe conducted an observational prospective study in adults proposed to various types of surgery using the brief pain inventory short form preoperatively (T0), one day after surgery, and three months later (T3). If the patient had pain at T3 and other causes of pain were excluded, they were considered to have PPP, and the McGill Pain Questionnaire Short Form was applied. QoL was measured with the EuroQol 5-dimension questionnaire (EQ-5D).ResultsOne hundred seventy-five patients completed the study. The incidence of PPP was 28%, and the affected patients presented lower QoL. The majority referred to a moderate to severe level of interference in their general activity. Cholecystectomies were less associated with PPP, and total knee/hip replacements were more associated with it. Preoperative pain, preoperative benzodiazepines or antidepressants, and more severe acute postoperative pain were associated with the development of PPP. Half of the patients with PPP were under treatment, and they refer a mean symptomatic relief of 69%.ConclusionsThis study, apart from attempting to better characterize the problem of PPP, emphasizes the lack of its treatment.

Objective: Patients undergoing endovascular aneurysm repair (EVAR) have comorbidities that increase the risk of death, myocardial infarction (MI) and acute kidney injury (AKI). Our aim was to evaluate the incidence and predictors of mortality, MI and AKI after EVAR and to compare AKI incidence with Vascular Surgery Kidney Injury Predictive Score (VSKIPS). Methods: We conducted a retrospective study of EVAR procedures performed between March 2006 and November 2013. We defined mortality at 30 days, MI as an increase in troponin level to >0.034 ng mL -1 in the first 72 h and AKI as an increase in creatinine level to >0.3 mg dL -1 in the first 48 h after surgery. Risk factors were analysed using logistic regression calculating Hosmer-Lemeshow test and the area under the receiver operating curve (AUROC). Results: Ninety-eight patients were included in the study. The incidence of mortality, MI, and AKI was 2%, 5%, and 18%, respectively. AKI increased the risk of MI [odds ratio (OR) 24.4, p=0.006]. Preoperative serum urea level of >50 mg dL -1 (OR 4.97, p=0.038), general anaesthesia (OR 9.64, p=0.002) and surgery duration (OR 1.53, p=0.043) were considered independent predictors of AKI. The AUROC of the AKI model was 0.886 compared with 0.793 of VSKIPS. Conclusion: We found the incidence of mortality, MI and AKI consistent with that of previous studies. However, we may be underestimating the last two because of the short follow-up time. AKI was an independent predictor of MI. Preoperative serum urea level of >50 mg dL

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