Risk Analysis Based on the Timing of Tracheostomy Procedures in Patients with Spinal Cord Injury Requiring Cervical Spine Surgery.

OBJECTIVE: To determine the optimal moment to perform tracheostomy in a patient requiring anterior cervical fixation. METHODS: A retrospective observational study conducted over an 18-year period included 56 patients who had been admitted to the intensive care unit with acute spinal cord injury and underwent tracheostomy and surgical fixation. The sample was divided into 2 groups: at-risk group (31 patients who had undergone tracheostomy before cervical surgery or <4 days after surgery) and not-at-risk group (25 patients who had undergone tracheostomy >4 days after fixation surgery). Descriptive and comparative studies were carried out. Overall trend of the collected data was analyzed using cubic splines (graphic methods). RESULTS: The only infectious complications diagnosed as related to the surgical procedure were infection of the surgical wound in 2 patients in the not-at-risk group (12%) and deep tissue infection in 1 patient in the at-risk group (3.2%). During the study period, we identified a tendency toward performance of early tracheostomies. CONCLUSIONS: Our results suggest that the presence of a tracheostomy stoma before or immediately after surgery is associated with a low risk of infection of the cervical surgical wound in instrumented spinal fusion.

Rhabdomyolysis and acute kidney injury in patients with traumatic spinal cord injury.

BACKGROUND: Patients with acute traumatic spinal cord injuries (SCIs) exhibit factors that, in other populations, have been associated with rhabdomyolysis. PURPOSE: The aim of the study is to determine the incidence of rhabdomyolysis in patients with acute traumatic SCI admitted to the Intensive Care Unit (ICU), as well as the development of secondary acute kidney injury and associated factors. STUDY DESIGN AND SETTING: This was an observational, retrospective study. PATIENT SAMPLE: All adult patients admitted to the ICU with acute traumatic SCI who presented rhabdomyolysis, diagnosed through creatine phosphokinase (CPK) levels >500 IU/L. OUTCOME MEASURES: Incidence of rhabdomyolysis and subsequent renal dysfunction was calculated. MATERIALS AND METHODS: Data about demographic variables, comorbidity, rhabdomyolysis risk factors, and variables involving SCI, severity scores, and laboratory parameters were obtained from clinical records. Multivariate logistic regression was used to identify renal injury risk factors. RESULTS: In 2006-2014, 200 patients with acute SCI were admitted to ICU. Of these, 103 had rhabdomyolysis (incidence = 51.5%; 95% confidence interval [CI]: 44.3%-58.7%). The most typical American Spinal Injury Association classification was A (70.3%). The injury severity score was 30.3 ± 12.1 and sequential organ failure assessment (SOFA) score was 5.6 ± 3.3 points. During their stay, 57 patients (55.3%; 95% CI: 45.2%-65.4%) presented renal dysfunction (creatinine ≥1.2 mg/dL). In the multivariate analysis, variables associated with renal dysfunction were creatinine at admission (odds ratio [OR] = 9.20; P = 0.006) and hemodynamic SOFA score the day following admission (OR = 1.33; P = 0.024). Creatinine was a better predictor of renal dysfunction than the peak CPK value during the rhabdomyolysis (area under the receiver operating characteristic curve: 0.91 vs. 0.63, respectively). CONCLUSIONS: Rhabdomyolysis is a frequent condition in patients with acute traumatic SCI admitted to the ICU, and renal dysfunction occurs in half of the cases. Creatinine values should be requested starting at the admission while neither the peak CPK values nor the hemodynamic SOFA scores could be used to properly discriminate between patients with and without renal dysfunction.

Predicting mortality in burn patients with bacteraemia.

OBJECTIVE: To determine factors associated with mortality in burn patients with bacteraemia. BACKGROUND: Previous studies have shown the negative impact of bacteraemia on the prognosis of burn patients, but only a few of these have analysed variables intervening in the clinical progress of these patients. METHODS: A retrospective study of adult burn patients (n = 73) with bacteraemia (103 episodes) in a Burns Unit during the 2000-2013 period. The study collected demographic variables, and comorbidity, injury-related and clinical data related to bacteraemia. Variables related to hospital mortality were analysed using a multiple logistic regression model. RESULTS: The cumulative incidence of bacteraemia was 4.4 episodes/100 patients. The mean age was 53.3 ± 19.2 years (65.8 % male). The median total body surface area (TBSA) was 35 %, while 50.7 % of the population had inhalation syndrome. The mean SOFA score at the onset of bacteraemia was 2.7 ± 3.8. The most common pathogen was Pseudomonas aeruginosa (17.5 %). The mortality rate was 24.7 %. The variables that were significantly associated with mortality were age (OR = 1.13), TBSA (OR = 1.05), SOFA score at the onset of bacteraemia (OR = 1.53) and recurrent bacteraemia (OR = 41.6). CONCLUSION: In addition to conventional risk factors, recurrence and organ dysfunction at the onset of bacteraemia are also associated with mortality, while the pathogen involved is not a prognostic factor.

Tracheostomy in the management of patients with thermal injuries.

OBJECTIVE: To assess the use and clinical impact of tracheostomy in burn patients. SUMMARY BACKGROUND DATA: The role of tracheostomy in the management of burn patients is controversial, with only a few recent studies conducted in this population. METHODS: Retrospective study of all adult burn patients who underwent a tracheostomy in a Burns Unit between 1995 and 2013. These were compared with a control group (1:1) who underwent orotracheal intubation. Hospital records were reviewed to obtain demographic and clinical information, including those related to respiratory support and tracheostomy. The McNemar's Chi-square and Signed-Rank Tests were used to study differences in morbimortality between both groups. RESULTS: A total of n = 20 patients underwent tracheostomy (0.9% of admissions, 56.0 ± 19.5 years, 60.0% women). The most common indication was long-term ventilation (75%), 24.6 ± 19.7 days after admission. Thirteen patients were successfully decannulated with a fatal complication observed in one case. Patients in the tracheostomy group were found to require longer-term mechanical ventilation (43.2 vs. 20.4 days; P = 0.004), with no differences in respiratory infection rates (30.0% vs. 31.6%; P = 0.687) or mortality (30.0% vs. 42.1%; P = 0.500). Ventilator weaning times (15.7 vs. 3.3 days; P = 0.001) and hospital stays (99.1 vs. 53.1 days; P = 0.030) were longer in the tracheostomy group, with no differences in duration of sedation. CONCLUSIONS: Tracheostomy may be a safe procedure in burn patients and is not associated with higher rates of mortality or respiratory infection. Tracheostomy patients showed longer mechanical ventilation times and higher morbidity, probably not attributable to tracheostomy.

Postpartum amaurosis in a woman with severe preeclampsia.

The maternal and perinatal fetal prognosis of preeclampsia depends on the gestational age of the fetus at onset, the severity of the disease, the quality of care, and the presence of pre-existent medical conditions. One of the uncommon effects of severe preeclampsia on the eye is sudden loss of vision. The present case report is of a woman with severe preeclampsia exacerbated by delivery that coursed with difficult-to-control arterial hypertension and reversible cortical amaurosis without impaired consciousness or seizures.