A best evidence topic was written according to a structured protocol. The question addressed was what the optimum antibiotic prophylaxis in patients undergoing implantation of a left ventricular assist device (LVAD) is. A total of 373 papers were found, of which 11 represented the best evidence. The authors, date, journal, study type, population, main outcome measures and results are tabulated. Eight retrospective and two prospective studies, including one randomized controlled trial (RCT), were identified. Although highly variable, the prophylactic antibiotic protocols employed in these studies generally favour the use of vancomycin, a cephalosporin, beta-lactam and quinolone, with the option of additional fluconazole and mupirocin. However, the lack of standardized definitions for infection, and variations in the choice, timing and duration of prophylactic antibiotics complicates the interpretation of reported infection rates. Driveline and pocket infections comprised the majority of infectious complications, and were principally attributed to Gram-positive organisms, such as Staphylococcus, as well as Pseudomonas species. We conclude that a beta-lactam be used for primary prophylaxis, with vancomycin where the risk of MRSA is high. Topical mupirocin and an anti-fungal are also recommended. Prophylaxis should commence prior to device insertion, and be continued into the peri- and post-operative period. Large-scale RCTs are necessary to assess the impact of different antibiotic regimens on infection within LVAD recipients.
16 July 2010 in Interactive CardioVascular and Thoracic Surgery
Summary. A best evidence topic in cardiac surgery was written according to a structured protocol. The question addressed was whether the use of non-steroidal a
Background: Multi‐organ failure characterized by acute kidney injury, liver dysfunction, and respiratory failure is a complex condition associated with high mortality, for which multiple individual support devices may be simultaneously required. This review aims to appraise the current evidence for the ADVanced Organ Support (ADVOS) system, a novel device integrating liver, lung, and kidney support with blood detoxification.Methods: We performed a literature review of the PubMed database to identify human and animal studies evaluating the ADVOS system.Results: In porcine models of acute liver injury and small clinical studies in humans, ADVOS significantly enhanced the elimination of water‐soluble and protein‐bound toxins and metabolites, including creatinine, ammonia, blood urea nitrogen, and lactate. Cardiovascular parameters (mean arterial pressure, cerebral perfusion pressure, and cardiac index) and renal function were improved. ADVOS clears carbon dioxide (CO2) effectively with rapid correction of pH abnormalities, achieving normalization of CO2, and bicarbonate levels. In patients with COVID‐19 infection, ADVOS enables rapid correction of acid–base disturbance and respiratory acidosis. ADVOS therapy reduces mortality in multi‐organ failure and has been shown to be safe with minimal adverse events.Conclusions: From the small observational studies analyzed, ADVOS demonstrates excellent detoxification of water‐soluble and protein‐bound substances. In particular, ADVOS permits the correction of metabolic and respiratory acidosis through the fluid‐based direct removal of acid and CO2. ADVOS is associated with significant improvements in hemodynamic and biochemical parameters, a trend toward improved survival in multi‐organ failure, and is well‐tolerated. Larger randomized trials are now necessary to further validate these encouraging results.
(1) Background: Acute Stanford type A aortic dissection (TAAD) may complicate the outcome of cardiovascular procedures. Data on the outcome after surgery for iatrogenic acute TAAD is scarce. (2) Methods: The European Registry of Type A Aortic Dissection (ERTAAD) is a multicenter, retrospective study including patients who underwent surgery for acute TAAD at 18 hospitals from eight European countries. The primary outcomes were in-hospital mortality and 5-year mortality. Twenty-seven secondary outcomes were evaluated. (3) Results: Out of 3902 consecutive patients who underwent surgery for acute TAAD, 103 (2.6%) had iatrogenic TAAD. Cardiac surgery (37.8%) and percutaneous coronary intervention (36.9%) were the most frequent causes leading to iatrogenic TAAD, followed by diagnostic coronary angiography (13.6%), transcatheter aortic valve replacement (10.7%) and peripheral endovascular procedure (1.0%). In hospital mortality was 20.5% after cardiac surgery, 31.6% after percutaneous coronary intervention, 42.9% after diagnostic coronary angiography, 45.5% after transcatheter aortic valve replacement and nihil after peripheral endovascular procedure (p = 0.092), with similar 5-year mortality between different subgroups of iatrogenic TAAD (p = 0.710). Among 102 propensity score matched pairs, in-hospital mortality was significantly higher among patients with iatrogenic TAAD (30.4% vs. 15.7%, p = 0.013) compared to those with spontaneous TAAD. This finding was likely related to higher risk of postoperative heart failure (35.3% vs. 10.8%, p < 0.0001) among iatrogenic TAAD patients. Five-year mortality was comparable between patients with iatrogenic and spontaneous TAAD (46.2% vs. 39.4%, p = 0.163). (4) Conclusions: Iatrogenic origin of acute TAAD is quite uncommon but carries a significantly increased risk of in-hospital mortality compared to spontaneous TAAD.
1 January 2012 in World Journal of Gastrointestinal Surgery