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44 result(s) for "International Normalize Ratio"
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Prothrombin Complex Concentrate Versus Fresh-Frozen Plasma for Reversal of Coagulopathy of Trauma: Is There a Difference?
Introduction The development of coagulopathy of trauma is multifactorial associated with hypoperfusion and consumption of coagulation factors. Previous studies have compared the role of factor replacement versus FPP for reversal of trauma coagulopathy. The purpose of our study was to determine the time to correction of coagulopathy and blood product requirement in patients who received PCC+FFP compared with patients who received FFP alone. Methods We performed a retrospective analysis of a prospectively maintained database of all coagulopathic (INR ≥ 1.5) trauma patients presenting to our level I trauma center during a 2-years period (2011–2012). Patients were stratified into two groups: patients who received PCC+FFP and patients who received FFP alone. Patients in the two groups were matched in a 1:3 (PCC+FFP:FFP) ratio using propensity score matching for demographics, injury severity, vital parameters, and initial INR. The two groups were then compared for: correction of INR, time to correction of INR, thromboembolic complications, mortality, and cost of therapy. Results A total of 252 were included in the analysis [PCC+FFP:63; FFP:189]. The mean age was 44 ± 20 years; 70 % were male, with a median ISS score of 27 [16–38]. PCC use was associated with an accelerated correction of INR (394 vs. 1,050 min; p 0.001), reduction in requirement of pack red blood cell (6.6 vs. 10 units; p 0.001) and FFP (2.8 vs. 3.9 units; p 0.01), and decline in mortality (23 vs. 28 %; p 0.04). PCC+FFP use was associated with a higher cost of therapy ($1,470 ± 845 vs. 1,171 ± 949; p 0.01) but lower overall cost of transfusion ($7,110 ± 1,068 vs. 9,571 ± 1,524; p 0.01) compared with FFP therapy alone. Conclusions PCC in conjunction with FFP rapidly corrects INR in a matched cohort of trauma patients not on warfarin therapy compared with FFP therapy alone. The use of PCC as an adjunct to FFP therapy is associated with reduction of blood product requirement and also lowers overall cost.
Liver Function Following Extended Hepatectomy Can Be Accurately Predicted Using Remnant Liver Volume to Body Weight Ratio
Background Standardised measurement of remnant liver volume (RLV), where total liver volume (TLV) is calculated from patients’ body surface area (RLV-sTLV), has been advocated. Extrapolating the model of living donor liver transplantation, we showed in a pilot study that the simplified RLV/body weight ratio (RLVBWR) was accurate in assessing the functional limit of hepatectomy. The aim of the study was to compare in a prospective series of extended right hepatectomy the predictive value of the RLVBWR and the RLV-sTLV at a cut-off of 0.5% (RLVBWR0.5%) and 20% (RLV-sTLV20%), respectively. Methods We studied the impact of RLVBWR0.5% and of RLV-sTLV20% on three months morbidity and mortality in 74 non-cirrhotic patients operated on for malignant tumours. Of these, 47 patients who were not included in the initial pilot study were enrolled in a prospective validation cohort to reappraise the predictive value of each method. Results RLVBWR and RLV-sTLV were highly correlated (Pearson correlation coefficient, 0.966). Three months overall and severe morbidity (grade 3b–5) and mortality were significantly increased in groups RLVBWR ≤ 0.5% and RLV-sTLVs ≤ 20% compared to groups >0.5% and >20%, respectively. The sensitivity and specificity in predicting death from liver failure were 100 and 84.1% for RLVBWR0.5% and 60 and 94.2% for RLV-sTLV20%, respectively. Similar results were observed in the validation cohort for the RLVBWR0.5% (lack of statistical power for RLV-sTLV as only 2 patients showed a RLV-sTLV ≤ 20%). Conclusions The RLVBWR0.5% is a method of assessing the remnant liver that is simple and as reliable as the standardised RLV-sTLV20%.
Management of Spontaneously Ruptured Hepatocellular Carcinoma and Hemoperitoneum Manifested as Acute Abdomen in the Emergency Room
Background Spontaneously ruptured hepatocellular carcinoma (HCC) with hemoperitoneum has a poor prognosis, especially in cases of cirrhosis. Patients usually present to emergency rooms (ERs) with acute abdomen. The aim of the present study was to determine the factors affecting mortality and to compare the prognosis of conservative treatment, transcatheter arterial embolization (TAE), or hepatectomy in these situations. Methods Fifty-four patients with spontaneously ruptured HCC diagnosed between January 2004 and August 2010 were enrolled in this retrospective review of clinical data. Grouping by survival or mortality, univariate and multivariate analyses of factors affecting 30-day mortality, and long-term survival were conducted. The outcomes of the various treatments were analyzed. Results After primary fluid resuscitation in the ER, 6 of 54 patients underwent conservative treatment. Emergency hepatectomy was performed on 19 patients; TAE was used for 29 patients, 18 of whom received staged hepatectomy thereafter. Poor liver function, prolonged international normalized ratio (INR), and conservative treatment were associated with increased 30-day mortality. Logistic regression analysis of cumulative survival revealed that INR ≥ 1.4, multiple intrahepatic HCC, and conservative treatment were related to poorer long-term survival. The patients who received hepatectomy, either immediate or staged after TAE, had higher survival rates of 85.2 % at 30 days and 62.2 % at 1 year. Conclusions The treatment of ruptured HCC should be tailored to the individual case. Prolonged survival is possible in patients with preserved liver function through curative liver resection. Emergency physicians, radiologists, and surgeons play essential roles in managing these patients.
Partnership for Sustainability in Cardiac Surgery to Address Critical Rheumatic Heart Disease in Sub-Saharan Africa: The Experience from Rwanda
Importance Rheumatic heart disease (RHD) in the developing world results in critical disability among children, adolescents, and young adults—marginalizing a key population at its peak age of productivity. Few regions in sub-Saharan Africa have independently created an effective strategy to detect and treat streptococcal infection and mitigate its progression to RHD. Objective We describe a unique collaboration, where the Rwanda Ministry of Health, the Rwanda Heart Foundation, and an expatriate humanitarian cardiac surgery program have together leveraged an innovative partnership as a means to expand Rwanda’s current capacity to address screening and primary prevention, as well as provide life-saving cardiac surgery for patients with critical RHD. Evidence review Interviews with key personnel and review of administrative records were conducted to obtain qualitative and quantitative data on the recruitment of clinical personnel, procurement of equipment, and program finances. The number of surgical cases completed and the resultant clinical outcomes are reviewed. Findings From 2008 to 2013, six annual visits were completed. A total of 128 prosthetic valves have been implanted in 86 complex patients in New York Heart Association (NYHA) class III or IV heart failure, with excellent clinical outcomes (5 % 30-day mortality). Postoperative complications included a cerebrovascular accident ( n  = 1) and hemorrhage, requiring reoperation ( n  = 2). All procedures were performed with participation of local personnel. Conclusions and relevance This strategy provides a reliable and consistent model of sophisticated specialty care delivery; inclusive of patient-centered cardiac surgery, mentorship, didactics, skill transfer, and investment in a sustainable cardiac program to address critical RHD in sub-Saharan Africa.
Packing for Control of Hemorrhage in Major Liver Trauma
Background Packing for complex liver injuries has been associated with an increased risk of abdominal sepsis and bile leaks. The aim of the present study was to determine the optimum timing of pack removal and to assess whether the total duration of packing increases the incidence of these complications. Methods The study was based on a retrospective review of all patients requiring liver packing over an 8‐year period in a level 1 trauma center. Results Ninety‐three (17%) of 534 liver injuries identified at laparotomy required perihepatic packing. Penetrating and blunt trauma occurred in 72 (77%) and 21 (23%), respectively. The mean total duration of packing was 2.4 days (range: 0.5–6.0 days). There was no association between the total duration of packing and the development of liver‐related complications (P = 0.284) or septic complications (P = 0.155). Early removal of packs at 24 h was associated with a higher rate of re‐bleeding than removal of packs at 48 h (P = 0.006). Conclusions The total duration of liver packing does not result in an increase in septic complications or bile leaks. The first re‐look laparotomy should only be performed after 48 h. An early re‐look at 24 h is associated with re‐bleeding and does not lead to early removal of liver packs.
Predicting Morbidity and Mortality After Hepatic Resection in Patients with Hepatocellular Carcinoma: The Role of Model for End-Stage Liver Disease Score
Background The Model for End-Stage Liver Disease (MELD) score is currently used as a disease severity index of cirrhotic patients awaiting liver transplantation. This study evaluated the usefulness of the MELD score in predicting mortality and morbidity of patients with hepatocellular carcinoma (HCC) undergoing hepatic resection. Methods The study cohort consisted of 1,017 patients who underwent hepatic resection for HCC between 1991 and 2005. Patient variables were examined by univariate and multivariate analyses to identify risk factors for morbidity and mortality. Accuracy in predicting mortality was assessed with the area under the receiver operator characteristic curve (AUC) analysis. Results The morbidity and mortality rates were 30.7% and 1.9%, respectively. Age, liver cirrhosis, operation time, and MELD score were risk factors for mortality, whereas indocyanine green retention rate at 15-min value, operation time, blood loss, and Child-Turcotte-Pugh score were risk factors for morbidity. Patients with MELD score >8 had higher mortality (4.0% vs. 0.6%, p  = 0.004) and higher liver-related morbidities (16.1% vs. 4.3%, p  < 0.001), including massive ascites, intra-abdominal hemorrhage, and hepatic failure, compared with patients with MELD score <6. High MELD score also was related to longer postoperative hospital stay (score >8, 14.5 days vs. score <6, 12.6 days, p  = 0.015). The AUC for MELD score as a predictor of mortality was 0.718, indicating high clinical usefulness. Conclusions The MELD score relates with mortality and liver-related morbidities in HCC patients who undergo hepatic resection. A MELD sore >8 represents the trigger for intensive treatment to improve patient outcome.
Spontaneous Rectus Sheath Hematomas: When to Restart Anticoagulation?
Background The aim of the present study was to obtain data regarding the timing of anticoagulation resumption in patients with spontaneous rectus sheath hematomas (RSH). Patients and methods The study is based on review of patients receiving anticoagulation medication who were diagnosed with a spontaneous RSH (traumatic and iatrogenic excluded) between 14 July 1997 and 17 March 2012. Results There were 156 patients (37 % male; aged 73 ± 13 years) with an average body mass index of 29 ± 7 (procedure group 28 ± 6). Anticoagulants included coumadin (64 %), intravenous heparin (21 %), aspirin (8 %), and others (7 %). An intervention was needed in 29 (19 %) of the patients (5 % operative; 16 % embolization). Sixty-two percent of patients had their anticoagulation restarted during their hospitalization, with a median re-initiation time of 4 days after RSH diagnosis (range 2–8 days). Timing of anticoagulant resumption did not differ regardless of the need for intervention (3 vs. 4 days). The complication rate was 19 % (42 % in the procedure group, none specific to the procedure), with the most common being acute renal failure ( n  = 8; 5 %), death ( n  = 8; 5 %), and thrombotic events ( n  = 5; 3 %). After resumption of anticoagulation, two patients suffered enlargement of their RSH, both 2 days after resumption. Conclusions Intervention to control hemorrhage was unnecessary in the majority of patients with RSH. In those with resumption of anticoagulation, the majority of patients were safely restarted by day 4. Even though complications secondary to anticoagulation were few, thrombotic complications outnumbered bleeding complications, suggesting that anticoagulation was withheld for too long after RSH diagnosis.
Liver-to-Spleen Ratio as an Index of Chronic Liver Diseases and Safety of Hepatectomy: A Pilot Study
Background Hepatic failure is a main cause of death after hepatectomy. Accurate preoperative evaluation of functional liver reserve is the key to ensure safe resection. Studies have found that the spleen would gradually enlarge as chronic liver disease worsened. This study was designed to determine whether preoperative liver-to-spleen ratio (LSR) would be an indicator to evaluate severity of liver disease and predict safety of hepatectomy. Methods The volumes of liver and spleen were evaluated on computed tomography scan in 67 patients who received partial hepatectomy. Preoperative LSR was calculated. Statistical analysis was conducted to examine the relationship between LSR and the degree of chronic liver disease. Ability of LSR to predict the safety of hepatectomy also was evaluated. Results LSR had a negative correlation with the degree of chronic liver diseases ( r  = −0.606, P  < 0.0001). LSR = 3.22 was the cutoff point for predicting posthepatectomy complications and inadequacy. AUC, sensitivity, and specificity for predicting posthepatectomy complications and inadequacy respectively were 0.830 (95 % confidence interval [CI] 0.715–0.950, P  < 0.0001), 69.6, 93.2 %, and 0.863 (95 % CI 0.777–0.949, P  < 0.0001), 68.8, 84.3 %. Multivariate analysis showed that LSR = 3.22 was the factor that affected both posthepatectomy complications and liver inadequacy. Conclusions Preoperative LSR score correlated well with the degree of chronic liver diseases, and it probably help us to improve the safety of hepatectomy.
Assessment of Liver Stiffness Measurement: Novel Intraoperative Blood Loss Predictor?
Background The risks of massive intraoperative blood loss are of major concern during liver surgery. Various predictors of massive intraoperative blood loss were reported for identifying patients preoperatively with high risk of suffering massive intraoperative blood loss during liver surgery. The assessment of the extent of fibrosis may be a way to predict the risk of the intraoperative blood loss in patients undergoing liver surgery. Liver stiffness measurement by transient elastography is a noninvasive method for assessing liver fibrosis in patients with chronic liver disease. The purpose of this retrospective, single-center study was to assess a correlation between liver stiffness measurement and intraoperative blood loss during liver surgery for determining the role of liver stiffness measurement as a predictor of intraoperative blood loss. Methods A total of 45 patients who underwent elective right hepatectomy from August 2007 to July 2011 were selected. Liver stiffness measurement, tumor size, intraoperative data, and perioperative laboratory data were retrospectively investigated. Correlation analysis was used to find the correlations between variables. Results Among the 45 patients enrolled in this study, 43 were ultimately investigated. A statistically positive correlation was found between the intraoperative blood loss and the median liver stiffness measurements ( r  = 0.420, p  = 0.005). Conclusions The liver stiffness measurement is a possible predictor of intraoperative blood loss through the correlation between liver stiffness measurement and the intraoperative blood loss during right hepatectomy.
Predictive Factors for Rebleeding and Death in Alcoholic Cirrhotic Patients with Acute Variceal Bleeding: A Multivariate Analysis
Background Bleeding from esophageal varices is a leading cause of death in alcoholic cirrhotic patients. The aim of the present single-center study was to identify risk factors predictive of variceal rebleeding and death within 6 weeks of initial treatment. Methods Univariate and multivariate analyses were performed on 310 prospectively documented alcoholic cirrhotic patients with acute variceal hemorrhage (AVH) who underwent 786 endoscopic variceal injection treatments between January 1984 and December 2006. All injections were administered during the first 6 weeks after the patients were treated for their first variceal bleed. Results Seventy-five (24.2%) patients experienced a rebleed, 38 within 5 days of the initial treatment and 37 within 6 weeks of their initial treatment. Of the 15 variables studied and included in a multivariate analysis using a logistic regression model, a bilirubin level >51 mmol/l and transfusion of >6 units of blood during the initial hospital admission were predictors of variceal rebleeding within the first 6 weeks. Seventy-seven (24.8%) patients died, 29 (9.3%) within 5 days and 48 (15.4%) between 6 and 42 days after the initial treatment. Stepwise multivariate logistic regression analysis showed that six variables were predictors of death within the first 6 weeks: encephalopathy, ascites, bilirubin level >51 mmol/l, international normalized ratio (INR) >2.3, albumin <25 g/l, and the need for balloon tube tamponade. Conclusions Survival was influenced by the severity of liver failure, with most deaths occurring in Child-Pugh grade C patients. Patients with AVH and encephalopathy, ascites, bilirubin levels >51 mmol/l, INR >2.3, albumin <25 g/l and who require balloon tube tamponade are at increased risk of dying within the first 6 weeks. Bilirubin levels >51 mmol/l and transfusion of >6 units of blood were predictors of variceal rebleeding.