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Rady Raz N, Anoushirvani AA, Rahimian N, Ghoerishi M, Alibeik N, Sajadi Rad M. Nano fuzzy alarming system for blood transfusion requirement detection in cancer using deep learning. Sci Rep 2024; 14:15958. [PMID: 38987580 PMCID: PMC11237028 DOI: 10.1038/s41598-024-66607-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 07/02/2024] [Indexed: 07/12/2024] Open
Abstract
Periodic blood transfusion is a need in cancer patients in which the disease process as well as the chemotherapy can disrupt the natural production of blood cells. However, there are concerns about blood transfusion side effects, the cost, and the availability of donated blood. Therefore, predicting the timely requirement for blood transfusion considering patient variability is a need, and here for the first-time deal with this issue in blood cancer using in vivo data. First, a data set of 98 samples of blood cancer patients including 61 features of demographic, clinical, and laboratory data are collected. After performing multivariate analysis and the approval of an expert, effective parameters are derived. Then using a deep recurrent neural network, a system is presented to predict a need for packed red blood cell transfusion. Here, we use a Long Short-Term Memory (LSTM) neural network for modeling and the cross-validation technique with 5 layers for validation of the model along with comparing the result with networking and non-networking machine learning algorithms including bidirectional LSTM, AdaBoost, bagging decision tree based, bagging KNeighbors, and Multi-Layer Perceptron (MLP). Results show the LSTM outperforms the other methods. Then, using the swarm of fuzzy bioinspired nanomachines and the most effective parameters of Hgb, PaO2, and pH, we propose a feasibility study on nano fuzzy alarming system (NFABT) for blood transfusion requirements. Alarming decisions using the Internet of Things (IoT) gateway are delivered to the physician for performing medical actions. Also, NFABT is considered a real-time non-invasive AI-based hemoglobin monitoring and alarming method. Results show the merits of the proposed method.
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Affiliation(s)
- Nasibeh Rady Raz
- Department of Artificial Intelligence in Medical Sciences, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Arash Anoushirvani
- Department of Artificial Intelligence in Medical Sciences, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran.
- Department of Internal Medicine, Firoozgar General Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Neda Rahimian
- Department of Internal Medicine, Firoozgar General Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Ghoerishi
- Department of Internal Medicine, Firoozgar General Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Nazanin Alibeik
- Department of Internal Medicine, Firoozgar General Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Masoumeh Sajadi Rad
- Department of Radiation Oncology, Firoozgar General Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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An SJ, Ngwira N, Davis D, Gallaher J, Charles A. Transfusion and Mortality in Acute Care Surgical Patients in Malawi: A Propensity-Matched Analysis. J Surg Res 2024; 297:121-127. [PMID: 38489932 PMCID: PMC11023752 DOI: 10.1016/j.jss.2024.01.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 01/09/2024] [Accepted: 01/26/2024] [Indexed: 03/17/2024]
Abstract
INTRODUCTION Information on transfusion-associated outcomes is limited in sub-Saharan Africa. We sought to characterize predictors of mortality in transfused patients with acute care surgical conditions in Malawi. METHODS We performed a retrospective propensity-matched analysis of patients with acute care surgical conditions at Kamuzu Central Hospital in Malawi from 2013 to 2021. We compared outcomes between patients who did and did not receive transfusions. RESULTS A total of 7395 patients were included. Transfused patients (n = 1086) were older (median 43 y with interquartile range 30-59, versus 39 y [interquartile range 27-53] in the nontransfused group, P < 0.01), had a higher proportion of females (41% versus 27%, P < 0.01), presented earlier to the hospital (median 2.9 versus 3.7 d, P = 0.02), and with lower hemoglobin levels (27% versus 1% < 7 g/dL, P < 0.01). They had a lower rate of surgical intervention (48% versus 59%, P < 0.01) but a higher rate of complications (62% versus 33%, P < 0.01). Crude in-hospital mortality was 25.5% for the transfused group and 12.8% for the nontransfused group (P < 0.01). After propensity matching, transfused patients had three times the odds of mortality compared to nontransfused patients (odds ratio 3.3, 95% confidence interval 2.3, 4.8). CONCLUSIONS In this propensity-matched study, transfused surgical patients were more likely to experience in-hospital mortality. These results suggest that the transfusion requirement reflects critical illness and warrants further investigation in this low-resource setting.
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Affiliation(s)
- Selena J An
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Natasha Ngwira
- Department of Surgery, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Dylane Davis
- University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Jared Gallaher
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Anthony Charles
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; Department of Surgery, Kamuzu Central Hospital, Lilongwe, Malawi.
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Chadda KR, Blakey EE, Davies TW, Puthucheary Z. Risk factors, biomarkers, and mechanisms for persistent inflammation, immunosuppression, and catabolism syndrome (PICS): a systematic review and meta-analysis. Br J Anaesth 2024:S0007-0912(24)00201-0. [PMID: 38688799 DOI: 10.1016/j.bja.2024.03.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 03/05/2024] [Accepted: 03/21/2024] [Indexed: 05/02/2024] Open
Abstract
INTRODUCTION Persistent inflammation, immunosuppression, and catabolism syndrome (PICS) has been proposed as an endotype of chronic critical illness (CCI). The aim of this systematic review is to synthesise the available evidence of risk factors, biomarkers, and biological mechanisms underlying PICS. METHODS MEDLINE, CENTRAL, and EMBASE were searched on June 2, 2023. Our population of interest was adult intensive care unit survivors. The exposure group was patients with PICS and the comparator group was patients with no PICS, CCI, or rapid recovery. Mean differences were pooled for each biomarker using a random effects DerSimonian-Laird method. Risk of bias assessment was done using the Newcastle-Ottawa Scale. RESULTS Six papers were included. Five were single-centre retrospective cohort studies, and one was a prospective cohort study, with sample sizes ranging from 22 to 391 patients. Two studies showed an increased incidence of PICS with age, and two studies showed an association between PICS and Charlson Comorbidity Index scores. PICS was associated with requiring mechanical ventilation in four studies. Meta-analysis showed a 34.4 mg L-1 higher C-reactive protein (95% confidence interval [CI] 12.7-56.2 mg L-1; P<0.01), a 4.4 g L-1 lower albumin (95% CI 0.5-8.3 g L-1; P<0.01), and a 0.36×109 L-1 lower lymphocyte count (95% CI 0.25-0.47×109 L-1; P=0.01) in the PICS compared with the non-PICS group. There are a large variety of other potential biomarkers but limited validation studies. The overall quality of evidence is limited, and these results should be interpreted accordingly. CONCLUSIONS While older patients and those with co-morbidities could be at greater risk for PICS, acquired risk factors, such as injury severity, are potentially more predictive of PICS than intrinsic patient characteristics. There are many potential biomarkers for PICS, but limited validation studies have been conducted. Persistent myeloid-derived suppressor cell expansion, the continual release of danger-associated molecular patterns and pathogen-associated molecular patterns propagating inflammation, and bioenergetic failure are all mechanisms underlying PICS that could offer potential for novel biomarkers and therapeutic interventions. CLINICAL TRIAL REGISTRATION International Prospective Register of Systematic Reviews (PROSPERO; CRD42023427749).
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Affiliation(s)
- Karan R Chadda
- William Harvey Research Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK; Homerton College, University of Cambridge, Cambridge, UK; Birmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.
| | - Ellen E Blakey
- Institute of Applied Health Research, University of Birmingham, Birmingham, UK
| | - Thomas W Davies
- William Harvey Research Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK; Adult Critical Care Unit, Royal London Hospital, London, UK
| | - Zudin Puthucheary
- William Harvey Research Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK; Adult Critical Care Unit, Royal London Hospital, London, UK
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Spore LM, Dencker EE, Kvanner EA, Hansen CP, Burgdorf SK, Krohn PS, Kollbeck SLG, Storkholm JH, Sillesen M. Perioperative factors associated with survival following surgery for pancreatic cancer - a nationwide analysis of 473 cases from Denmark. BMC Surg 2024; 24:76. [PMID: 38431571 PMCID: PMC10908011 DOI: 10.1186/s12893-024-02369-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 02/23/2024] [Indexed: 03/05/2024] Open
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma (PDAC) remains one of the most lethal cancers worldwide, with an overall 5-year survival rate of only 5%. The effect of perioperative treatment factors including duration of surgery, blood transfusions as well as choice of anesthesia and analgesia techniques on overall survival (OS) following pancreatic resections for PDAC, is currently not well known. We hypothesized that these perioperative factors might be associated with OS after pancreatic resections for PDAC. METHODS This is a retrospective study from a nationwide cohort of patients who underwent surgery for PDAC in Denmark from 2011 to 2020. Kaplan-Meier 1, 2 and 5-year survival estimates were 73%, 49% and 22%, respectively. Data were obtained by joining the national Danish Pancreatic Cancer Database (DPCD) and the Danish Anaesthesia Database (DAD). Associations between the primary endpoint (OS) and perioperative factors including duration of surgery, type of anesthesia (intravenous, inhalation or mixed), use of epidural analgesia and perioperative blood transfusions were assessed using Hazard Ratios (HRs). These were calculated by Cox regression, controlling for relevant confounders identified through an assessment of the current literature. These included demographics, comorbidities, perioperative information, pre and postoperative chemotherapy, tumor staging and free resection margins. RESULTS Overall, data from 473 resected PDAC patients were available. Multivariate Cox regression indicated that perioperative blood transfusions were associated with shorter OS (HR 2.53, p = 0.005), with survival estimates of 8.8% in transfused vs. 28.0% in non-transfused patients at 72 months after surgery. No statistically significant associations were identified for the duration of surgery or anesthesia/analgesia techniques. CONCLUSION In this study, the use of perioperative blood transfusions was associated with shorter OS.
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Affiliation(s)
- Laura Marr Spore
- Department of Organ Surgery and Transplantation, Copenhagen University Hospital, Rigshospitalet, Denmark
| | - Emilie Even Dencker
- Department of Organ Surgery and Transplantation, Copenhagen University Hospital, Rigshospitalet, Denmark
| | - Eske Aasvang Kvanner
- Department of Anesthesia, Copenhagen University Hospital, Rigshospitalet, Denmark
- Institute of Clinical Medicine, University of Copenhagen Medical School, Copenhagen, Denmark
| | - Carsten Palnaes Hansen
- Department of Organ Surgery and Transplantation, Copenhagen University Hospital, Rigshospitalet, Denmark
| | - Stefan Kobbelgaard Burgdorf
- Department of Organ Surgery and Transplantation, Copenhagen University Hospital, Rigshospitalet, Denmark
- Institute of Clinical Medicine, University of Copenhagen Medical School, Copenhagen, Denmark
| | - Paul Suno Krohn
- Department of Organ Surgery and Transplantation, Copenhagen University Hospital, Rigshospitalet, Denmark
| | | | - Jan Henrik Storkholm
- Department of Organ Surgery and Transplantation, Copenhagen University Hospital, Rigshospitalet, Denmark
- Department of Surgery, Imperial College NHS Trust, Hammersmith Hospital, London, UK
| | - Martin Sillesen
- Department of Organ Surgery and Transplantation, Copenhagen University Hospital, Rigshospitalet, Denmark.
- Institute of Clinical Medicine, University of Copenhagen Medical School, Copenhagen, Denmark.
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Li X, Yu L, Fu M, Yang J, Tan H. Perioperative Risk Factors for Postoperative Pulmonary Complications After Minimally Invasive Esophagectomy. Int J Gen Med 2024; 17:567-577. [PMID: 38374814 PMCID: PMC10876009 DOI: 10.2147/ijgm.s449530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 02/05/2024] [Indexed: 02/21/2024] Open
Abstract
Background Postoperative pulmonary complications (PPCs) are the most prevalent complication after esophagectomy and are associated with a worse prognosis. This study aimed to investigate the perioperative risk factors for PPCs after minimally invasive esophagectomy (MIE). Methods Seven hundred and sixty-seven consecutive patients who underwent McKeown MIE via thoracoscopy and laparoscopy were retrospectively studied. Patient characteristics, perioperative data, and postoperative complications were analyzed. Results The incidence of PPCs after MIE was 25.2% (193/767). Univariate analysis identified age (odds ratio [OR] 1.022, P = 0.044), male sex (OR 2.955, P < 0.001), pulmonary comorbidities (OR 1.746, P = 0.032), chronic obstructive pulmonary disease (COPD) (OR 2.821, P = 0.003), former smoking status (OR 1.880, P = 0.001), postoperative albumin concentration (OR 0.941, P = 0.007), postoperative creatinine concentration (OR 1.011, P = 0.019), and perioperative transfusion (OR 2.250, P = 0.001) as risk factors for PPCs. In multivariate analysis, the independent risk factors for PPCs were male sex (OR 3.135, P < 0.001), body mass index (BMI) (OR 1.088, P = 0.002), COPD (OR 2.480, P = 0.012), neoadjuvant chemoradiotherapy (OR 2.057, P = 0.035), postoperative albumin concentration (OR 0.929, P = 0.002), and perioperative transfusion (OR 1.939, P = 0.013). The area under the receiver operating characteristic curve for the predictive model generated by multivariate logistic regression analysis was 0.671 (95% confidence interval 0.628-0.713). Conclusions Male sex, BMI, COPD, neoadjuvant chemoradiotherapy, postoperative albumin concentration, and perioperative transfusion were independent predictors of PPCs after MIE.
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Affiliation(s)
- Xiaoxi Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Anesthesiology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Ling Yu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Anesthesiology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Miao Fu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Anesthesiology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Jiaonan Yang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Anesthesiology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Hongyu Tan
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Anesthesiology, Peking University Cancer Hospital & Institute, Beijing, China
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Bahr TM, Snow GL, Christensen TR, Davenport P, Henry E, Tweddell SM, Ilstrup SJ, Yoder BA, Ohls RK, Sola-Visner MC, Christensen RD. Can Red Blood Cell and Platelet Transfusions Have a Pathogenic Role in Bronchopulmonary Dysplasia? J Pediatr 2024; 265:113836. [PMID: 37992802 DOI: 10.1016/j.jpeds.2023.113836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 11/08/2023] [Accepted: 11/15/2023] [Indexed: 11/24/2023]
Abstract
OBJECTIVE To evaluate whether transfusions in infants born preterm contribute to the pathogenesis of bronchopulmonary dysplasia (BPD). STUDY DESIGN We conducted a multihospital, retrospective study seeking associations between red blood cell or platelet transfusions and BPD. We tabulated all transfusions administered from January 2018 through December 2022 to infants born ≤29 weeks or <1000 g until 36 weeks postmenstrual age and compared those with BPD grade. We performed a sensitivity analysis to assess the possibility of a causal relationship. We then determined whether each transfusion was compliant with restrictive guidelines, and we estimated effects fewer transfusions might have on future BPD incidence. RESULTS Eighty-four infants did not develop BPD and 595 did; 352 developed grade 1 (mild), 193 grade 2 (moderate), and 50 grade 3 (severe). Transfusions were given at <36 weeks to 7% of those who did not develop BPD, 46% who did, and 98% who developed severe BPD. For every transfusion the odds of developing BPD increased by a factor of 2.27 (95% CI, 1.59-3.68; P < .001). Sensitivity analyses suggested that transfusions might contribute to BPD. Fifty-seven percent of red blood cell transfusions and 68% of platelet transfusions were noncompliant with new restrictive guidelines. Modeling predicted that complying with restrictive guidelines could reduce the transfusion rate by 20%-30% and the moderate to severe BPD rate by ∼4%-6%. CONCLUSIONS Transfusions were associated with BPD incidence and severity. Lowering transfusion rates to comply with current restrictive guidelines might result in a small but meaningful reduction in BPD rates.
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Affiliation(s)
- Timothy M Bahr
- Division of Neonatology, Department of Pediatrics, University of Utah, Salt Lake City, UT; Department of Neonatology, Intermountain Health, Murray, UT.
| | | | - Thomas R Christensen
- Division of Neonatology, Department of Pediatrics, University of Utah, Salt Lake City, UT
| | - Patricia Davenport
- Division of Newborn Medicine, Boston Children's Hospital and Harvard Medical School, Boston, MA
| | - Erick Henry
- Department of Neonatology, Intermountain Health, Murray, UT
| | - Sarah M Tweddell
- Division of Neonatology, Department of Pediatrics, University of Utah, Salt Lake City, UT
| | - Sarah J Ilstrup
- Transfusion Services and Department of Pathology, Intermountain Health, Murray, UT
| | - Bradley A Yoder
- Division of Neonatology, Department of Pediatrics, University of Utah, Salt Lake City, UT
| | - Robin K Ohls
- Division of Neonatology, Department of Pediatrics, University of Utah, Salt Lake City, UT
| | - Martha C Sola-Visner
- Division of Newborn Medicine, Boston Children's Hospital and Harvard Medical School, Boston, MA
| | - Robert D Christensen
- Division of Neonatology, Department of Pediatrics, University of Utah, Salt Lake City, UT; Department of Neonatology, Intermountain Health, Murray, UT
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Alshalani A, de Wissel MB, Tuip-de Boer AM, Roelofs JJTH, van Bruggen R, Acker JP, Juffermans NP. Transfusion of female blood in a rat model is associated with red blood cells entrapment in organs. PLoS One 2023; 18:e0288308. [PMID: 37992035 PMCID: PMC10664878 DOI: 10.1371/journal.pone.0288308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 06/25/2023] [Indexed: 11/24/2023] Open
Abstract
Transfusion of red blood cells (RBCs) has been associated with adverse outcomes. Mechanisms may be related to donor sex and biological age of RBC. This study hypothesized that receipt of female blood is associated with decreased post-transfusion recovery (PTR) and a concomitant increased organ entrapment in rats, related to young age of donor RBCs. Donor rats underwent bloodletting to stimulate production of new, young RBCs, followed by Percoll fractionation for further enrichment of young RBCs based on their low density. Control donors did not undergo these procedures. Male rats received either a (biotinylated) standard RBC product or a product enriched for young RBCs, derived from either male or female donors. Controls received saline. Organs and blood samples were harvested after 24 hours. This study found no difference in PTR between groups, although only the group receiving young RBCs from females failed to reach a PTR of 75%. Receipt of both standard RBCs and young RBCs from females was associated with increased entrapment of donor RBCs in the lung, liver, and spleen compared to receiving blood from male donors. Soluble ICAM-1 and markers of hemolysis were higher in recipients of female blood compared to control. In conclusion, transfusing RBCs from female donors, but not from male donors, is associated with trapping of donor RBCs in organs, accompanied by endothelial activation and hemolysis.
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Affiliation(s)
- Abdulrahman Alshalani
- Chair of Medical and Molecular Genetics Research, Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
- Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Marit B. de Wissel
- Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Anita M. Tuip-de Boer
- Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Joris J. T. H. Roelofs
- Department of Pathology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Cardiovascular Sciences, Microcirculation, Amsterdam, The Netherlands
| | - Robin van Bruggen
- Department of Molecular Hematology, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Jason P. Acker
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada
- Innovation and Portfolio Management, Canadian Blood Services, Edmonton, Alberta, Canada
| | - Nicole P. Juffermans
- Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Department of Intensive Care, OLVG Hospital, Amsterdam, the Netherlands
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Kelly LS, Munley JA, Kannan KB, Pons EE, Coldwell PS, Bible LE, Parvataneni HK, Hagen JE, Efron PA, Mohr AM. Anemia Recovery after Trauma: A Longitudinal Study. Surg Infect (Larchmt) 2023; 24:39-45. [PMID: 36579920 PMCID: PMC9894600 DOI: 10.1089/sur.2022.299] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Background: Post-injury inflammation and its correlation with anemia recovery after severe trauma is poorly described. Severe injury induces a systemic inflammatory response associated with critical illness and organ dysfunction, including disordered hematopoiesis, and anemia. This study sought to characterize the resolution of post-injury inflammation and anemia to identify risk factors associated with persistence of anemia. Patients and Methods: This single-institution study prospectively enrolled 73 trauma patients with an injury severity score >15, hemorrhagic shock, and a lower extremity long bone orthopedic injury. Blood was obtained at enrollment and after 14 days, one, three, and six months. Analytes were compared using Mann-Whitney U tests with correction for multiple comparisons. Results: Median age was 45 years and Injury Severity Score (ISS) was 27, with anemia rates of 97% at two weeks, 80% at one month, 52% at three months, and 30% at six months. Post-injury elevations in erythropoietin, interleukin-6, and C-reactive protein resolved by one month, three months, and six months, respectively. Median granulocyte colony-stimulating factor (G-CSF) and tumor necrosis factor (TNF)-α concentrations remained elevated throughout the six-month follow-up period. Patients with persistent anemia had longer intensive care unit and hospital lengths of stay, more infectious complications, and received more packed red blood cell transfusions compared to those with early anemia recovery. Conclusions: Severe trauma is associated with a prolonged inflammatory response, which is associated with increased transfusion requirements, lengths of stay, and persistent anemia. Further analysis is needed to identify correlations between prolonged inflammation and clinical outcomes after discharge.
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Affiliation(s)
- Lauren S. Kelly
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Jennifer A. Munley
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Kolenkode B. Kannan
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Erick E. Pons
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Preston S. Coldwell
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Letitia E. Bible
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Hari K. Parvataneni
- Department of Orthopedic Surgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Jennifer E. Hagen
- Department of Orthopedic Surgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Philip A. Efron
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Alicia M. Mohr
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida, USA
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