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  1. Article ; Online: Geographic distribution of colonoscopy providers in the United States: An analysis of medicare claims data.

    Carmichael, Heather / Samuels, Jason M / Velopulos, Catherine G / Jones, Edward L

    Surgical endoscopy

    2022  Volume 36, Issue 10, Page(s) 7673–7678

    Abstract: Introduction: Screening colonoscopy is one of the few procedures that can prevent cancer. While the majority of colonoscopies in the USA are performed by gastroenterologists, general surgeons play a key role in at-risk, rural populations. The aim of ... ...

    Abstract Introduction: Screening colonoscopy is one of the few procedures that can prevent cancer. While the majority of colonoscopies in the USA are performed by gastroenterologists, general surgeons play a key role in at-risk, rural populations. The aim of this study was to examine geographic practice patterns in colonoscopy using a nationwide Medicare claims database.
    Methods and procedures: The 2017 Medicare Provider Utilization and Payment database was used to identify physicians performing colonoscopy. Providers were classified as gastroenterologists, surgeons, ambulatory surgical centers (ASCs), or other. Rural-Urban Commuting Area classification at the zip code level was used to determine whether the practice location for an individual provider was in a rural area/small town (< 10,000 people), micropolitan area (10-50,000 people), or metropolitan area (> 50,000 people).
    Results: Claims data from 3,861,187 colonoscopy procedures on Medicare patients were included. The majority of procedures were performed by gastroenterologists (57.2%) and ASCs (32.1%). Surgeons performed 6.8% of cases overall. When examined at a zip code level, surgeons performed 51.6% of procedures in small towns/rural areas and 21.7% of procedures in micropolitan areas. Individual surgeons performed fewer annual procedures as compared to gastroenterologists (median 51 vs. 187, p < 0.001).
    Conclusions: Surgeons perform the majority of colonoscopies in rural zip codes on Medicare patients. High-quality, surgical training in endoscopy is essential to ensure access to colonoscopy for patients outside of major metropolitan areas.
    MeSH term(s) Aged ; Colonoscopy ; Endoscopy, Gastrointestinal ; Humans ; Medicare ; Rural Population ; Surgeons ; United States
    Language English
    Publishing date 2022-06-21
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 639039-0
    ISSN 1432-2218 ; 0930-2794
    ISSN (online) 1432-2218
    ISSN 0930-2794
    DOI 10.1007/s00464-022-09083-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: When more is less: Urban disparities in access to surgical care by transportation means.

    Carmichael, Heather / Tran, Billy / Velopulos, Catherine G

    American journal of surgery

    2021  Volume 223, Issue 1, Page(s) 112–119

    Abstract: Background: Structural factors limiting access to surgical care require elucidation. We hypothesize transportation time to hospitals with surgical capacity disproportionately burdens minority populations.: Methods: We identified hospitals with ... ...

    Abstract Background: Structural factors limiting access to surgical care require elucidation. We hypothesize transportation time to hospitals with surgical capacity disproportionately burdens minority populations.
    Methods: We identified hospitals with surgical capacity within a 20-mile radius of our city center. Using geocoding, we estimated travel times from each census tract to the nearest facility by car or public bus.
    Results: For 143 tracts within the county, drive time was 13 ± 4 min and bus time was 33 ± 15 min. Only 41.2% of the population had a facility within 30 min by bus; access was further diminished for those with minority race/ethnicity and/or no insurance. Bus time was associated with percent minority population in a census tract: for each 10% increase in minority population there was a 4.3-min increase in bus time (p < 0.001) when controlling for socioeconomic status and other characteristics.
    Conclusions: Geographic information systems analysis has potential to identify communities with disproportionate burden to access surgical services.
    MeSH term(s) Adult ; Census Tract ; Health Services Accessibility/economics ; Health Services Accessibility/statistics & numerical data ; Healthcare Disparities/statistics & numerical data ; Hospitals, Urban/statistics & numerical data ; Humans ; Social Determinants of Health/economics ; Social Determinants of Health/statistics & numerical data ; Socioeconomic Factors ; Time Factors ; Transportation/economics ; Transportation/methods ; Transportation/statistics & numerical data
    Language English
    Publishing date 2021-08-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2953-1
    ISSN 1879-1883 ; 0002-9610
    ISSN (online) 1879-1883
    ISSN 0002-9610
    DOI 10.1016/j.amjsurg.2021.07.052
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Immigrating to Unsafe Spaces: Unique Patterns of Homicide in Immigrant Victims Compared to Native-Born Citizens.

    Abolarin, Joshua / Myers, Quintin W O / Carmichael, Heather / Moore, Allison / Velopulos, Catherine G

    The Journal of surgical research

    2023  Volume 288, Page(s) 321–328

    Abstract: Introduction: Contrary to popular belief, immigrant enclaves produce less crime than other areas of the United States, yet that does not mean immigrants avoid violent crime altogether. The purpose of this project is to better characterize the victims of ...

    Abstract Introduction: Contrary to popular belief, immigrant enclaves produce less crime than other areas of the United States, yet that does not mean immigrants avoid violent crime altogether. The purpose of this project is to better characterize the victims of homicide in this population. Specifically, we sought to compare differences in victim demographics, injury patterns, and circumstances of violent death between the immigrant population and native-born victims of homicide.
    Methods: We queried the National Violent Death Reporting System (NVDRS) from the years 2003-2019 for deaths in victims who were born outside of the United States. We extracted demographic information including age, race or ethnicity, means of homicide, and circumstances surrounding the event to compare immigrant to nonimmigrant deaths.
    Results: Immigrant victims were less likely to be killed by a firearm and to have substance use or alcohol implicated. Immigrant victims were twice as likely to be killed during multiple homicide events that involved suicide of the perpetrator (2.1% to 1%, P ≤ 0.001) and to be killed by a stranger (12.9% to 6.2%, P ≤ 0.001). Immigrant victims were also more likely to be killed during the perpetration of another crime (19.1% to 15%, P ≤ 0.001), and more likely to be killed in a commercial setting such as a grocery store or retail outlet (7.6% to 2.4%, P ≤ 0.001).
    Conclusions: Injury prevention measures for the immigrant population require different techniques, focusing on distinct features of victimization centered on random acts in contrast to native-born citizens who tend to be victims of people they know.
    MeSH term(s) Humans ; United States/epidemiology ; Homicide ; Cause of Death ; Population Surveillance ; Emigrants and Immigrants ; Indigenous Peoples
    Language English
    Publishing date 2023-04-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80170-7
    ISSN 1095-8673 ; 0022-4804
    ISSN (online) 1095-8673
    ISSN 0022-4804
    DOI 10.1016/j.jss.2023.01.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Sex Differences in Violent Death During Incarceration and Legal Intervention.

    Stearns, Dorothy R / Moore, Allison / Myers, Quintin W O / Carmichael, Heather / Velopulos, Catherine G

    The Journal of surgical research

    2023  Volume 289, Page(s) 90–96

    Abstract: Introduction: This study clarifies the differences in death during incarceration and legal intervention between males and females, delineating the differences in demographic features and the circumstances of the violent death including location, injury ... ...

    Abstract Introduction: This study clarifies the differences in death during incarceration and legal intervention between males and females, delineating the differences in demographic features and the circumstances of the violent death including location, injury pattern, and perpetrator.
    Methods: The data used are from the National Violent Death Reporting System database from 2003 to 2019. All victims were either in custody, in the process of custody, or in prison. Sex was coded as female or male and as assigned at birth. All analyses were conducted using SAS 9.4 software using chi-square tests, with an alpha of 0.05 to test significant differences in the circumstances of mortality and demographic characteristics for each group.
    Results: Our findings show that suicide was the most common cause of death during incarceration for both females and males (89.8% versus 77.4%; P < 0.001). Homicide was less common in females (1.6% versus 14.8%; P < 0.001) and legal intervention only occurred in males (2.2%; P < 0.001). Male victims were more likely to be of non-White race/ethnicity compared to females, while females were more likely to be experiencing homelessness, have documented mental illness, and comorbid substance abuse.
    Conclusions: Victim sex is significantly associated with circumstances of violent death among the incarcerated and highlights the need for appropriate mental health and substance abuse treatment.
    MeSH term(s) Female ; Humans ; Infant, Newborn ; Male ; Cause of Death ; Population Surveillance ; Substance-Related Disorders ; United States/epidemiology ; Violence/legislation & jurisprudence ; Violence/statistics & numerical data ; Sex Factors ; Prisons/statistics & numerical data ; Prisoners/statistics & numerical data ; Homicide/statistics & numerical data
    Language English
    Publishing date 2023-04-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80170-7
    ISSN 1095-8673 ; 0022-4804
    ISSN (online) 1095-8673
    ISSN 0022-4804
    DOI 10.1016/j.jss.2023.02.024
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Safer Behind Bars? Comparing In-Custody Deaths Prior to and During Incarceration.

    Moore, Allison / Stearns, Dorothy / Carmichael, Heather / Myers, Quintin W O / Velopulos, Catherine G

    The Journal of surgical research

    2023  Volume 291, Page(s) 260–264

    Abstract: Introduction: This project aims to characterize trauma-associated deaths of the American incarcerated population through legal intervention (LI) or death by law enforcement officials while in custody before and during incarceration. We determined the ... ...

    Abstract Introduction: This project aims to characterize trauma-associated deaths of the American incarcerated population through legal intervention (LI) or death by law enforcement officials while in custody before and during incarceration. We determined the preceding events leading to violent death, including initiation of medical care, use of restraints and force, and demographics of the victims.
    Methods: We used National Violent Death Reporting System data from the years 2003-2019 to identify deaths that occurred while in custody or incarcerated, including discriminate and narrative data. Event information included weapon type, location of death, incident type, incarceration status, use of restraints, and prone positioning.
    Results: There were 86 victims who died from LI included in the analysis. Most events occurred after incarceration. All victims in our cohort were male, and race was an associated factor for death by LI. Only 16% of victims had an education level above high school/general educational development. Death by firearm compared to other weapons was significantly more common in the in-custody but not yet incarcerated group (83% versus 42%, P ≤ 0.0001). Other associated factors included a history of mental health, physical confrontations, the belief that the victim had a weapon, and being restrained in prone positioning.
    Conclusions: Our study shows that racial minority victims are disproportionately affected by LI deaths. Firearms and restraint type were important factors in LI deaths. Our findings suggest that violence prevention in the justice system should focus on prevention and de-escalation across setting with specific attention to use of force and inmate access to the weapons of police, guards, and other law and justice system workers. More transparent quality data is sorely needed to adequately define and address this problem.
    MeSH term(s) Humans ; Male ; United States/epidemiology ; Female ; Homicide ; Suicide ; Cause of Death ; Population Surveillance ; Violence
    Language English
    Publishing date 2023-07-19
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80170-7
    ISSN 1095-8673 ; 0022-4804
    ISSN (online) 1095-8673
    ISSN 0022-4804
    DOI 10.1016/j.jss.2023.06.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Prioritizing rapid COVID-19 testing in emergency general surgery patients decreases burden of inpatient hospital admission.

    Thomas, Madeline B / Carmichael, Heather / Harrison, Madison / Abbitt, Danielle / Moore, Allison / Myers, Quintin W O / Velopulos, Catherine G

    Trauma surgery & acute care open

    2023  Volume 8, Issue 1, Page(s) e001085

    Abstract: Objectives: The COVID-19 pandemic has changed delivery of emergency general surgery (EGS) and contributed to widespread bed shortages. At our institution, rapid testing is not routinely approved for EGS patients. We examined common EGS conditions ( ... ...

    Abstract Objectives: The COVID-19 pandemic has changed delivery of emergency general surgery (EGS) and contributed to widespread bed shortages. At our institution, rapid testing is not routinely approved for EGS patients. We examined common EGS conditions (appendicitis and acute cholecystitis), hypothesizing that necessity of testing for COVID-19 significantly delayed operative intervention.
    Methods: We performed a prepost study to examine a 2-month timeframe, or historical control, prior to COVID-19 testing (January 1, 2020-March 1, 2020) as well as a 2-month timeframe during the COVID-19 era (January 1, 2021-March 1, 2021). We chose conditions that are frequently treated surgically as outpatient or observation status. We examined time for COVID-19 test to result, and associated time to operative intervention (operating room (OR)) and need for admission.
    Results: Median time to COVID-19 test results was 7.4 hours (IQR 5.8-13.1). For appendectomy, time to surgical consultation or case request did not differ between cohorts. Time to OR after case request was significantly longer (12.5 vs 1.9 hours, p<0.001) and patients more frequently required admission prior to operative intervention if receiving treatment in the COVID-19 timeframe. Similarly, for cholecystectomy there were no differences in time to surgical consultation or case request, but time to OR after case request was longer in the COVID-19 era (21.1 vs 9.0 hours, p<0.001).
    Conclusion: While COVID-19 positivity rates have declined, the purpose of this study was to reflect on one element of our hospital system's response to the COVID-19 pandemic. Based on our institutional experience, waiting for COVID-19 test results directly impacts time to surgery, as well as the need for admission for a historically outpatient procedure. In the future, if the healthcare system is asked to respond to another pandemic or similar situation, expediting time to OR to eliminate unnecessary time in the hospital and non-critical admissions should be paramount.
    Level of evidence: Level III, prognostic/epidemiological.
    Language English
    Publishing date 2023-11-07
    Publishing country England
    Document type Journal Article
    ISSN 2397-5776
    ISSN (online) 2397-5776
    DOI 10.1136/tsaco-2023-001085
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Left out in the cold: Homicide amongst persons experiencing homelessness.

    Henkind, Rebecca / Carmichael, Heather / Stearns, Dorothy R / Thomas, Madeline / Abbitt, Danielle / Myers, Quintin W O / Zakrison, Tanya / Velopulos, Catherine G

    American journal of surgery

    2023  Volume 227, Page(s) 204–207

    Abstract: Background: There is no American population-level study comparing the characteristics of homicides involving victims who were vs were not experiencing homelessness at time of death. We aim to identify variables surrounding homeless homicide that are ... ...

    Abstract Background: There is no American population-level study comparing the characteristics of homicides involving victims who were vs were not experiencing homelessness at time of death. We aim to identify variables surrounding homeless homicide that are unique, and intervenable.
    Methods: In this retrospective cohort study, we reviewed the National Violent Death Reporting System (NVDRS) from 2003 to 2018 and compared the characteristics surrounding homicides of victims who were not-homeless (cohort 1) vs experiencing homelessness (cohort 2) at death. We utilized the available perpetrator data to characterize the average perpetrator for each cohort. We considered housing status to be our primary predictor and recorded NVDRS variables, such as age of victims and likelihood to know perpetrators, to be our primary outcomes.
    Results: 81,212 Homicide Victims and 60,982 Homicide Perpetrators were included in analysis. Homeless cohort victims were more likely younger, White, male, and to have a known mental health or substance abuse disorder. PEH were also more likely to have co-morbid mental health and substance abuse disorders but were roughly half as likely to be getting treatment for said disorders. Circumstances surrounding incidents, including geographic location, mechanism of injury, and premeditation, varied; homeless cohort victims were more likely to die in random acts of violence, but were less likely to die via firearm.
    Conclusions: There is room for targeted interventions against homeless homicides.
    Level of evidence: Epidemiological, Level IV.
    MeSH term(s) Humans ; Male ; Homicide ; Ill-Housed Persons ; Retrospective Studies ; Substance-Related Disorders/epidemiology ; United States/epidemiology
    Language English
    Publishing date 2023-10-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2953-1
    ISSN 1879-1883 ; 0002-9610
    ISSN (online) 1879-1883
    ISSN 0002-9610
    DOI 10.1016/j.amjsurg.2023.09.052
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Social vulnerability is associated with post-operative morbidity following robotic-assisted lung resection.

    Stuart, Christina M / Dyas, Adam R / Byers, Sara / Velopulos, Catherine G / Randhawa, Simran K / David, Elizabeth A / Mitchell, John D / Meguid, Robert A

    Journal of thoracic disease

    2023  Volume 15, Issue 11, Page(s) 5931–5941

    Abstract: Background: The social vulnerability index (SVI) is a neighborhood-based metric used to determine an individual's susceptibility to socioeconomic hardship, with high SVI indicating high susceptibility. SVI has previously been associated with surgical ... ...

    Abstract Background: The social vulnerability index (SVI) is a neighborhood-based metric used to determine an individual's susceptibility to socioeconomic hardship, with high SVI indicating high susceptibility. SVI has previously been associated with surgical outcomes. We aimed to determine if SVI influences morbidity following robotic-assisted lung resection.
    Methods: This was a retrospective cohort study at one academic medical center (1/1/2021-11/30/2022). Patients undergoing robotic-assisted lung resection were grouped into low (<75
    Results: We included 320 patients, of which 40 patients (12.5%) in the high-SVI group and 280 (87.5%) in the low-SVI group. High SVI patients were more likely to be non-Caucasian and of Hispanic ethnicity, but there were no other differences in perioperative characteristics (all P>0.05). High SVI patients were more likely to experience a post-operative complication (42.5%
    Conclusions: High SVI was associated with increased risk-adjusted odds of morbidity after robotic-assisted lung resection. Highly vulnerable patients should be allocated perioperative resources to help mitigate the increased risk of these complications.
    Language English
    Publishing date 2023-10-30
    Publishing country China
    Document type Journal Article
    ZDB-ID 2573571-8
    ISSN 2077-6624 ; 2072-1439
    ISSN (online) 2077-6624
    ISSN 2072-1439
    DOI 10.21037/jtd-23-1122
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Using the Social Vulnerability Index to Examine Disparities in Surgical Pediatric Trauma Patients.

    Stevens, Jenny / Reppucci, Marina L / Pickett, Kaci / Acker, Shannon / Carmichael, Heather / Velopulos, Catherine G / Bensard, Denis / Kulungowski, Ann

    The Journal of surgical research

    2023  Volume 287, Page(s) 55–62

    Abstract: Introduction: The Social Vulnerability Index (SVI) is a composite measure geocoded at the census tract level that has the potential to identify target populations at risk for postoperative surgical morbidity. We applied the SVI to examine demographics ... ...

    Abstract Introduction: The Social Vulnerability Index (SVI) is a composite measure geocoded at the census tract level that has the potential to identify target populations at risk for postoperative surgical morbidity. We applied the SVI to examine demographics and disparities in surgical outcomes in pediatric trauma patients.
    Methods: Surgical pediatric trauma patients (≤18-year-old) at our institution from 2010 to 2020 were included. Patients were geocoded to identify their census tract of residence and estimated SVI and were stratified into high (≥70th percentile) and low (<70th percentile) SVI groups. Demographics, clinical data, and outcomes were compared using Kruskal-Wallis and Fisher's exact tests.
    Results: Of 355 patients included, 21.4% had high SVI percentiles while 78.6% had low SVI percentiles. Patients with high SVI were more likely to have government insurance (73.7% versus 37.2%, P < 0.001), be of minority race (49.8% versus 19.1%, P < 0.001), present with penetrating injuries (32.9% versus 19.7%, P = 0.007), and develop surgical site infections (3.9% versus 0.4%, P = 0.03) compared to the low SVI group.
    Conclusions: The SVI has the potential to examine health care disparities in pediatric trauma patients and identify discrete at-risk target populations for preventative resources allocation and intervention. Future studies are necessary to determine the utility of this tool in additional pediatric cohorts.
    MeSH term(s) Humans ; Child ; Adolescent ; Social Vulnerability ; Surgical Wound ; Wounds, Penetrating ; Patients ; Surgical Wound Infection
    Language English
    Publishing date 2023-03-01
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 80170-7
    ISSN 1095-8673 ; 0022-4804
    ISSN (online) 1095-8673
    ISSN 0022-4804
    DOI 10.1016/j.jss.2023.01.013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Tick-tock: Prehospital intubation is associated with longer field time without any survival benefit.

    Thomas, Madeline B / Urban, Shane / Carmichael, Heather / Banker, Jordan / Shah, Ananya / Schaid, Terry / Wright, Angela / Velopulos, Catherine G / Cripps, Michael

    Surgery

    2023  Volume 174, Issue 4, Page(s) 1034–1040

    Abstract: Background: Prehospital endotracheal intubation is a debated topic, and few studies have found it beneficial after trauma. A growing body of evidence suggests that prehospital endotracheal intubation is associated with increased morbidity and mortality. ...

    Abstract Background: Prehospital endotracheal intubation is a debated topic, and few studies have found it beneficial after trauma. A growing body of evidence suggests that prehospital endotracheal intubation is associated with increased morbidity and mortality. Our study was designed to compare patients with attempted prehospital endotracheal intubation to those intubated promptly upon emergency department arrival.
    Methods: A retrospective review of a single-center trauma research data repository was utilized. Inclusion criteria included age ≥15 years, transport from the scene by ground ambulance, and undergoing prehospital endotracheal intubation attempts or intubation within 10 minutes of emergency department arrival without prior prehospital endotracheal intubation attempt. Propensity score matching was used to minimize differences in baseline characteristics between groups. Standard mean differences are also presented for pre- and post-matching datasets to evaluate for covariate balance.
    Results: In total, 208 patients met the inclusion criteria. Of these, 95 patients (46%) underwent prehospital endotracheal intubation, which was successful in 47% of cases. A control group of 113 patients (54%) were intubated within 10 minutes of emergency department arrival. We performed propensity score matching between cohorts based on observed differences after univariate analysis and used standard mean differences to estimate covariate balance. After propensity score matching, patients who underwent prehospital endotracheal intubation experienced a longer time on scene as compared with those intubated in the emergency department (9 minutes [interquartile range 6-12] vs 6 minutes [interquartile range 5-9], P < .01) without difference in overall mortality (67% vs 65%, P = 1.00). Rapid sequence intubation was not used in the field; however, it was used for 58% of patients intubated within 10 minutes of emergency department arrival. After matched analysis, patients with a failed prehospital intubation attempt were equally likely to receive rapid sequence intubation during re-intubation in the emergency department as compared with those undergoing a first attempt (n = 13/28, 46% vs n = 28/63, 44%, P = 1.00, standard mean differences 0.04). Among patients with prehospital arrest (n = 98), prehospital endotracheal intubation was associated with shorter time to death (8 minutes [interquartile range 3-17] vs 14 minutes [interquartile range 8-45], P = .008) and longer total transport time (23 minutes [interquartile range 19-31] vs 19 minutes [interquartile range 16-24], P = .006), but there was no difference in observed mortality (n = 29/31, 94% vs n = 30/31, 97%, P = 1.00, standard mean differences = 0.15) after propensity score matching.
    Conclusion: Prehospital providers should prioritize expeditious transport over attempting prehospital endotracheal intubation, as prehospital endotracheal intubation is inconsistently successful, may delay definitive care, and appears to have no survival benefit.
    MeSH term(s) Humans ; Adolescent ; Emergency Medical Services ; Emergency Service, Hospital ; Retrospective Studies ; Intubation, Intratracheal ; Trauma Centers
    Language English
    Publishing date 2023-07-26
    Publishing country United States
    Document type Journal Article
    ZDB-ID 202467-6
    ISSN 1532-7361 ; 0039-6060
    ISSN (online) 1532-7361
    ISSN 0039-6060
    DOI 10.1016/j.surg.2023.06.021
    Database MEDical Literature Analysis and Retrieval System OnLINE

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