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Siu M, Levin D, Christiansen R, Kelly E, Alouidor R, Kamine TH. Prophylactic Splenectomy and Hyposplenism in Spaceflight. Aerosp Med Hum Perform 2022; 93:877-881. [PMID: 36757247 DOI: 10.3357/amhp.6079.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND: There is debate whether astronauts traveling to space should undergo a prophylactic splenectomy prior to long duration spaceflight. Risks to the spleen during flight include radiation and trauma. However, splenectomy also carries significant risks.METHODS: Systematic review of data published over the past 5 decades regarding risks associated with splenectomies and risks associated with irradiation to the spleen from long duration spaceflight were analyzed. A total of 41 articles were reviewed.RESULTS: Acute risks of splenectomy include intraoperative mortality rate (from hemorrhage) of 3-5%, mortality rate from postoperative complications of 6%, thromboembolic event rate of 10%, and portal vein thrombosis rate of 5-37%. Delayed risks of splenectomy include overwhelming postsplenectomy infection (OPSI) at 0.5% at 5 yr post splenectomy, mortality rate as high as 60% for pneumococcal infections, and development of malignancy with relative risk of 1.53. The risk of hematologic malignancy increases significantly when individuals reach 40 Gy of exposure, much higher than the 0.6 Gy of radiation experienced from a 12-mo round trip to Mars. Lower doses of radiation increase the risk of hyposplenism more so than hematologic malignancy.CONCLUSION:For protection against hematologic malignancy, the benefits of prophylactic splenectomy do not outweigh the risks. However, there is a possible risk of hyposplenism from long duration spaceflight. It would be beneficial to prophylactically provide vaccines against encapsulated organisms for long duration spaceflight to mitigate the risk of hyposplenism.Siu M, Levin D, Christiansen R, Kelly E, Alouidor R, Kamine TH. Prophylactic splenectomy and hyposplenism in spaceflight. Aerosp Med Hum Perform. 2022; 93(12):877-881.
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Hsieh TM, Chuang PC, Liu CT, Wu BY, Liu YW, Hsieh CH. Protective Role of Obesity on Trauma Impact: A Retrospective Analysis of Patients with Surgical Blunt Bowel Mesenteric Injury Due to Road Traffic Accidents. Risk Manag Healthc Policy 2022; 15:1533-1543. [PMID: 36003412 PMCID: PMC9395217 DOI: 10.2147/rmhp.s374469] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 08/09/2022] [Indexed: 11/23/2022] Open
Abstract
Background The "cushion effect" theory proposes that increased body mass index (BMI) is associated with less severe abdomen injury following blunt abdomen trauma, while the "obesity paradox" describes the protective effect of obesity against mortality. However, most previous studies used the abdominal abbreviated injury scale as the outcomes seemed to be inadequate owing to the injuries to the abdominal organs, such as the spleen and liver, which may be attributable to the force that caused the chest trauma. This study aimed to use adult trauma patients with surgical blunt bowel mesenteric injuries (BBMIs) to investigate the influence of obesity on the clinical outcomes and overall morbidities. Methods This retrospective study reviewed the data of all hospitalized trauma patients between 2009 and 2019 and included all patients with surgically proven small bowel, colon, or mesenteric injuries due to a road traffic accident. Comparison of the outcomes was performed among 123 patients with surgically proven BBMI, who were categorized by BMI into the normal-weight (n = 73, BMI<25 kg/m2), overweight (n = 37, 25≤BMI≤30 kg/m2), and obese groups (n = 13, BMI>30 kg/m2). Results The obese group had a significantly lower incidence of isolated bowel injury (0%) compared with the normal-weight (35.6%) and overweight (16.2%) groups (p=0.005), but with higher incidence of isolated mesenteric injury or combined injury, although this was not significant. The obese group (92.3%) had a significantly higher percentage of overall morbidity than the normal-weight (61.6%) and overweight (70.3%) groups (p = 0.047). No significant difference was observed in the in-hospital mortality and 24-hour mortality among the three study groups. Conclusion The study findings do not support the existence of a cushion effect and obesity paradox of obesity in blunt abdominal trauma.
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Affiliation(s)
- Ting-Min Hsieh
- Division of Trauma, Department of Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Po-Chun Chuang
- Department of Emergency, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chun-Ting Liu
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Bei-Yu Wu
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yueh-Wei Liu
- Division of General Surgery, Department of Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Ching-Hua Hsieh
- Division of Plastic Surgery, Department of Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
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A Retrospective Cohort Study on the Clinical Characteristics of Patients with Surgical Blunt Bowel and/or Mesenteric Injuries among Motorcyclists and Car Occupants. Healthcare (Basel) 2022; 10:healthcare10071323. [PMID: 35885849 PMCID: PMC9323956 DOI: 10.3390/healthcare10071323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/04/2022] [Accepted: 07/14/2022] [Indexed: 12/04/2022] Open
Abstract
(1) Background: Surgical blunt bowel and/or mesenteric injuries (BBMIs) are rare but challenging for trauma surgeons. Surgical BBMI is associated with specific injury mechanisms, such as direct compression by the handlebar in motorcycle accidents or rapid acceleration and deceleration of the impact forces associated with seatbelt injuries in motor vehicle collisions. However, the discussions on the implications of BBMI and the mechanisms of road traffic accidents remain scarce. This retrospective study assessed the clinical and injury characteristics of surgically proven BBMI among motorcyclists and car occupants based on trauma-registered data obtained from a level I trauma center in Taiwan. (2) Methods: Medical data of 72 motorcyclists and 38 car occupants who had surgical BBMI between January 2009 and December 2020 were reviewed. Patient characteristics, injuries, and outcomes in both groups were compared and analyzed. (3) Results: Motorcyclists with surgical BBMI had a significantly higher Injury Severity Score (median [Q1–Q3], 18 (9–27) vs. 16 (9–18), p = 0.044) and lower Glasgow Coma Scale score (15 (11–15) vs. 15 (15–15), p = 0.034]) than car occupants. Motorcyclists with surgical BBMI had a higher incidence of pelvic fractures (18.1% vs. 2.6%, p = 0.032) and upper limb fractures (23.6% vs. 7.9%, p = 0.042) and a significantly higher rate of chest tube insertion than car occupants (29.2% vs. 10.5%, p = 0.027). However, there were no significant differences in the outcomes of morbidity and mortality between motorcyclists and car occupants with surgical BBMI. (4) Conclusions: This study demonstrated there were no significant differences in outcomes between motorcyclists and car occupants with surgical BBMI. However, motorcyclists with surgical BBMI were injured more severely, along with injuries to the head/neck and extremities, than car occupants.
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Yang J, Guo X, Xu M, Wang L, Lord D. Alcohol-impaired motorcyclists versus car drivers: A comparison of crash involvement and legal consequence from adjudication data. JOURNAL OF SAFETY RESEARCH 2021; 79:292-303. [PMID: 34848010 DOI: 10.1016/j.jsr.2021.09.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 04/08/2021] [Accepted: 09/23/2021] [Indexed: 06/13/2023]
Abstract
INTRODUCTION Driving under the influence (DUI) increases the probability of motor-vehicle collisions, especially for motorcycles with less protections. This study aimed to identify commonalities and differences between criminally DUI offenses (i.e., with a blood alcohol concentration (BAC) of 80 mg/dL or higher) committed by motorcyclists and car drivers. METHODS A total of 10,457 motorcycle DUIs and 8,402 car DUIs were compared using a series of logistic regression models, using data extracted from the documents of adjudication decisions by the courts of Jiangsu, China. RESULTS The results revealed that offenders from the high-BAC group (i.e., 200 mg/dL or higher) accounted for more than 20% of the total DUI offenses, and were more likely to be involved in a crash and punished with a longer detention. Motorcyclists had a higher likelihood of crash involvement, and were also more likely to be responsible for single-vehicle crashes associated with higher odds of injury sustained, compared to alcohol-impaired car drivers. In the verdict, motorcycle offenders were more likely to receive a less severe penalty. CONCLUSIONS Interventions are clearly required to focus on reducing in the high-BAC group of offenders. For alcohol-impaired motorcyclists, their risks of crash and injury against BAC climb more steeply than the risks for car drivers. The factors including frequent occurrences, uncertainty of detection, and short-term sentences may weaken the deterrence effect of the criminalization of motorcycle DUI. Practical Applications: The traffic-related adjudication data support traffic safety analysis. Strategies such as combating motorcycle violations (e.g., unlicensed operators or driving unsafe vehicles), undertaking education and awareness campaigns, are expected for DUI prevention.
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Affiliation(s)
- Jie Yang
- Development Research Institute of Transportation Governed by Law, School of Law, Southeast University, Nanjing 210096, China.
| | - Xiaoyu Guo
- Zachry Department of Civil and Environmental Engineering, Texas A&M University, College Station, TX 77843-3136, USA
| | - Minchuan Xu
- Judicial Big Data Research Center, School of Law, Southeast University, Nanjing 210096, China
| | - Lusheng Wang
- Judicial Big Data Research Center, School of Law, Southeast University, Nanjing 210096, China
| | - Dominique Lord
- Zachry Department of Civil and Environmental Engineering, Texas A&M University, College Station, TX 77843-3136, USA
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Huang CY, Chou SE, Su WT, Liu HT, Hsieh TM, Hsu SY, Hsieh HY, Hsieh CH. Effect of Lowering the Blood Alcohol Concentration Limit to 0.03 Among Hospitalized Trauma Patients in Southern Taiwan: A Cross-Sectional Analysis. Risk Manag Healthc Policy 2020; 13:571-581. [PMID: 32607025 PMCID: PMC7305841 DOI: 10.2147/rmhp.s250734] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 05/20/2020] [Indexed: 11/28/2022] Open
Abstract
Background In June 2013, the legal blood alcohol concentration (BAC) limit for driving was lowered from 0.05 to 0.03 mg/mL in Taiwan. Thus, this study aimed to assess the epidemiological changes in terms of drinking among drivers in southern Taiwan before and after the law was imposed. Methods Only patients who had undergone the BAC test at the emergency room were included in the study. The patients during the study period before (n = 2735) and after (n = 2413) the implementation of the law were selected for comparison. Drunk patients were defined as those who had a BAC ≥0.005 and were considered as driving under the influence (DUI) of alcohol. Meanwhile, driving while intoxicated (DWI) was defined as a BAC ≥0.05, which was the level adopted in the new law. Results Since the BAC limit lowered to 0.03, the number of DUI patients significantly decreased from 340 (12.4%) to 171 (7.1%), and that of DWI patients significantly reduced from 273 (10.0%) to 146 (6.1%) based on the alcohol test. In addition, after the implementation of the law, the number of associated injuries did not significantly decrease from that before the law was implemented in patients involved in alcohol-related crashes. Conclusion After lowering the legal BAC limit from 0.05 to 0.03, responsiveness to the change in law was observed among the studied population. However, such responsiveness may not be observed in some citizens who may need special interventions to help reduce their behavior of drinking and driving.
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Affiliation(s)
- Chun-Ying Huang
- Department of Trauma Surgery, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University and College of Medicine, Kaohsiung 83301, Taiwan
| | - Sheng-En Chou
- Department of Trauma Surgery, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University and College of Medicine, Kaohsiung 83301, Taiwan
| | - Wei-Ti Su
- Department of Trauma Surgery, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University and College of Medicine, Kaohsiung 83301, Taiwan
| | - Hang-Tsung Liu
- Department of Trauma Surgery, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University and College of Medicine, Kaohsiung 83301, Taiwan
| | - Ting-Min Hsieh
- Department of Trauma Surgery, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University and College of Medicine, Kaohsiung 83301, Taiwan
| | - Shiun-Yuan Hsu
- Department of Trauma Surgery, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University and College of Medicine, Kaohsiung 83301, Taiwan
| | - Hsiao-Yun Hsieh
- Department of Plastic Surgery, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University and College of Medicine, Kaohsiung 83301, Taiwan
| | - Ching-Hua Hsieh
- Department of Plastic Surgery, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University and College of Medicine, Kaohsiung 83301, Taiwan
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McGrath R, Hall O, Peterson M, DeVivo M, Heinemann A, Kalpakjian C. The association between the etiology of a spinal cord injury and time to mortality in the United States: A 44-year investigation. J Spinal Cord Med 2019; 42:444-452. [PMID: 30124389 PMCID: PMC6718184 DOI: 10.1080/10790268.2018.1505311] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Objective: To determine the association between spinal cord injury (SCI) etiology categories and mortality, and examine the association between etiology sub-categories and mortality. Design: Prospective cohort study. Setting: Model Systems and Shriners Hospital SCI units. Participants: Data were analyzed from 42,627 cases in the SCI Model System Collaborative Survival Study Database from 1973 to 2017. Those with SCI etiologies categorized as vehicular, violent, sports, falls, pedestrian, and medical were included. Interventions: Not applicable. Outcome Measure: Time to mortality after SCI. Results: Relative to the sports related etiology category, those with medical, pedestrian, violence, falls, and vehicular related SCIs had a 2.00 (95% confidence intervals (CIs): 1.79-2.24), 1.57 (CIs: 1.34-1.83), 1.54 (CIs: 1.41-1.68), 1.35 (CIs: 1.25-1.45), and 1.26 (CIs: 1.17-1.35) higher hazard for mortality, respectfully. Persons with SCIs from automobile crashes had a 1.38 (CIs: 1.23-1.56) higher hazard for mortality, whereas those with SCIs from motorcycle crashes had a 1.21 (CIs: 1.04-1.39) higher hazard for mortality, relative to other etiologies within the vehicular category. Those with SCIs from diving had a 1.37 (CIs: 1.18-1.59) higher hazard for mortality relative to other etiologies within the sports category. Conclusions: Injury etiology categories and certain sub-categories were associated with a higher risk for early mortality. Understanding how additional factors such as socioeconomic status, co-occurring injuries, medical co-morbidities, and environmental aspects interact with SCI etiologies may provide insights for how etiology of injury impacts survival. These findings may serve as a development for extending long-term life expectancy by informing SCI prevention programs and care post-injury.
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Affiliation(s)
- Ryan McGrath
- Department of Health, Nutrition, and Exercise Sciences, North Dakota State University, Fargo, North Dakota, USA,Department of Physical Medicine and Rehabilitation, Medical School, University of Michigan, Ann Arbor, Michigan, USA,Correspondence to: Ryan McGrath, Department of Health, Nutrition, and Exercise Sciences, North Dakota State University, NDSU Dept. 2620, PO Box 6050, Fargo, ND 58108, USA.
| | - Orman Hall
- Department of Physical Medicine and Rehabilitation, Medical School, University of Michigan, Ann Arbor, Michigan, USA
| | - Mark Peterson
- Department of Physical Medicine and Rehabilitation, Medical School, University of Michigan, Ann Arbor, Michigan, USA
| | - Michael DeVivo
- Department of Physical Medicine and Rehabilitation, Spain Rehabilitation Center, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Allen Heinemann
- Center for Rehabilitation Outcomes Research, Shirley Ryan AbilityLab, Chicago, Illinois, USA,Department of Physical Medicine and Rehabilitation, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Claire Kalpakjian
- Department of Physical Medicine and Rehabilitation, Medical School, University of Michigan, Ann Arbor, Michigan, USA
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Fransvea P, Costa G, Massa G, Frezza B, Mercantini P, BaIducci G. Non-operative management of blunt splenic injury: is it really so extensively feasible? a critical appraisal of a single-center experience. Pan Afr Med J 2019; 32:52. [PMID: 31143357 PMCID: PMC6522183 DOI: 10.11604/pamj.2019.32.52.15022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 10/19/2018] [Indexed: 02/04/2023] Open
Abstract
Introduction The spleen is one of the most commonly injured organ following blunt abdominal trauma. Splenic injuries may occur in isolation or in association with other intra-and extra-abdominal injury. Nonoperative management of blunt injury to the spleen has become routine in children. In adult most minor splenic injuries are readily treated nonoperatively but controversy exists regarding the role of nonoperative management for higher grade injuries above all in multi-trauma patients. The aim of this study is the assessment of splenic trauma treatment, with particular attention to conservative treatment, its limits, its efficiency, and its safety in multi-trauma patient or in a severe trauma patient. Methods The present research focused on a retrospective review of patients with splenic injury. The research was performed by analyzing data of the trauma registry of St. Andrea University Hospital in Rome. The St. Andrea University Hospital trauma registry includes 1859. The variables taken into account were spleen injury and general injuries, age, sex, cause and dynamic of trauma, hemoglobin, hematocrit, white blood cells count, INR, number and time blood transfusion, hemodynamic stability, type of treatment provided, hospitalization period, morbidity and mortality. Assessment of splenic injuries was evaluated according to Abbreviated Injury Scale (AIS). Results The analysis among the general population of spleen trauma patients identified 68 patients with a splenic injury representing the 41.2% of all abdomen injury. The Average age was of 37.01 ± 17.18 years. The Average ISS value was of 22.88 ± 12.85; mediana of 24.50 (range 4-66). The average Spleen AIS value was of 3.13 ± 0.88; mediana 3.00 (range 2-5). The overall mortality ratio was of 19.1% (13 patients). The average ISS value in patients who died was of 41.92 ± 12.48, whereas in patients who survided was of 23.33 ± 10.15. The difference was considered to be statistically significant (p <0.001). The relashionship between the ISS and AIS values in patients who died was considered directly proportional but not statistically significant (Pearson test AIS/ISS = 0.132, p = n.s.). The initial management was a conservative treatment in 27 patients (39.7%) of them 4 patients (15%) failed, in the other 41 cases urgent splenectomies were performed. The average spleen AIS in all the patients who underwent splenectomy was 3.61 ± 0.63 whereas in the patients who were not treated surgically was 2.42 ± 0.69. The difference was deemed statistically significant (p <0.001). Conclusion Splenic injury, as reported in our statistic as well as in literature, is the most common injury in closed abdominal trauma. Nonoperative management of blunt injury to the spleen in adults has been applied with increasing frequency. However, the criteria for nonoperative management are controversial. The preference of a conservative treatment must be based on the hemodynamic stability indices as well as on the spleen lesion severity and on the general trauma severity. The conservative treatment represent a feasible and safe therapeutic alternative even in case of severe lesions in politrauma patients, but the choice of the treatment form requires an assessment for each singular case.
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Affiliation(s)
- Pietro Fransvea
- Faculty of Medicine and Psychology, University of Rome "La Sapienza" St Andrea Hospital, Italy
| | - Gianluca Costa
- Faculty of Medicine and Psychology, University of Rome "La Sapienza" St Andrea Hospital, Italy
| | - Giulia Massa
- Faculty of Medicine and Psychology, University of Rome "La Sapienza" St Andrea Hospital, Italy
| | - Barbara Frezza
- Faculty of Medicine and Psychology, University of Rome "La Sapienza" St Andrea Hospital, Italy
| | - Paolo Mercantini
- Faculty of Medicine and Psychology, University of Rome "La Sapienza" St Andrea Hospital, Italy
| | - Genoveffa BaIducci
- Faculty of Medicine and Psychology, University of Rome "La Sapienza" St Andrea Hospital, Italy
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