Publications by authors named "Ari Lipsky"

Background: In the complex landscape of modern warfare, understanding combat-related injuries leading to hospitalization is crucial for optimizing injury treatment. This study aims to compare combat casualty characteristics and outcomes during the major conflicts between Israel and Hamas in 2023 and 2014 as a basis for understanding the effectiveness of trauma care practices for wounded soldiers.

Methods: A cohort study of soldiers hospitalized due to combat injuries during two major wars between Israel and Hamas in 2023 and 2014, using data from the Israeli National Trauma Registry.

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Article Synopsis
  • Combat casualty care has improved due to evidence-based protocols, with a study comparing prehospital care and outcomes of patients from conflicts in 2014 and 2023 in southern Israel.
  • The study found that the number of evacuated patients increased significantly from 251 in 2014 to 940 in 2023, while the time to hospital arrival decreased.
  • There was an increase in the proportion of severely injured patients, a decrease in some advanced prehospital interventions, and an increase in prehospital blood transfusions, but in-hospital mortality rates remained stable across both conflicts.
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Background: Crystalloid administration during early resuscitation of bleeding trauma patients is recommended by current guidelines, yet evidence supporting this practice is limited. We aimed to evaluate the trends in the utilization of crystalloids during the last decade and to determine the threshold crystalloid volume independently associated with mortality risk in trauma patients at risk of or experiencing shock.

Methods: A retrospective cohort study using data from the Israel National Trauma Registry (January 2013 to December 2022) was conducted.

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Background: On Saturday, October 7th, approximately 3000 Hamas-led terrorists infiltrated Israel's southern border and attacked civilians and soldiers. Terrorists murdered close to 1200 people, abducted hundreds, and injured thousands. This surprise attack involved an unprecedented number of casualties.

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Objective: The number of pediatric trauma patients requiring surgical interventions has been steadily decreasing allowing for a judicious approach to immediately available resources. This study aimed to derive and validate a prediction rule that reliably identifies injured children who are at very low risk for requiring emergency surgery upon emergency department (ED) arrival.

Methods: A retrospective cohort study of data included in the Israeli National Trauma Registry from January 1, 2011, through December 31, 2020, was conducted.

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Background: Machine learning (ML)-derived notifications for impending episodes of hemodynamic instability and respiratory failure events are interesting because they can alert physicians in time to intervene before these complications occur.

Research Question: Do ML alerts, telemedicine system (TS)-generated alerts, or biomedical monitors (BMs) have superior performance for predicting episodes of intubation or administration of vasopressors?

Study Design And Methods: An ML algorithm was trained to predict intubation and vasopressor initiation events among critically ill adults. Its performance was compared with BM alarms and TS alerts.

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Objectives: Tranexamic acid (TXA) administration confers a survival benefit in bleeding trauma patients; however, data regarding its use in pediatric patients are limited. This study evaluates the prehospital treatment with TXA in pediatric trauma patients treated by the Israel Defense Forces Medical Corps (IDF-MC).

Design: Retrospective, cohort study using the Israel Defense Forces registry, 2011-2021.

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Objective: The role of basic life support (BLS) vs. advanced life support (ALS) in pediatric trauma is controversial. Although ALS is widely accepted as the gold standard, previous studies have found no advantage of ALS over BLS care in adult trauma.

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Background: Prehospital endotracheal intubation (PEI) of head injured children with impaired level of consciousness (LOC) aims to minimize secondary brain injury. However, PEI is controversial in otherwise stable children. We aimed to investigate the indications for PEI among pediatric trauma patients and the prevalence of clinically significant traumatic brain injury (csTBI) among those intubated solely due to impaired consciousness.

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Objective: Current guidelines advocate prehospital endotracheal intubation (ETI) in patients with suspected severe head injury and impaired level of consciousness. However, the ability to identify patients with traumatic brain injury (TBI) in the prehospital setting is limited and prehospital ETI carries a high complication rate. We investigated the prevalence of significant TBI among patients intubated in the field for that reason.

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Background: Fever is a physiologic response to a wide range of pathologies and one of the most common complaints and clinical signs in the emergency medicine department (ED). The association between fever magnitude and clinical outcomes has been evaluated in specific populations with inconsistent results.

Objectives: In this study we aimed to investigate the association between the degree of fever in the ED and clinical outcomes of hospitalized febrile adult patients.

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Objective: Predictive models for critical events in the intensive care unit (ICU) might help providers anticipate patient deterioration. At the heart of predictive model development lies the ability to accurately label significant events, thereby facilitating the use of machine learning and similar strategies. We conducted this study to establish the validity of an automated system for tagging respiratory and hemodynamic deterioration by comparing automatic tags to tagging by expert reviewers.

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Purpose: Under-vehicle explosions caused by improvised explosive devices (IED) came to the public's attention during armed conflicts. However, IEDs are also used by criminals in the civilian setting. This study aimed to determine the pattern of injury, medical management, and outcomes of civilians injured during under-vehicle explosions caused by IEDs.

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Background: The current study explores the trends in the application of combat casualty care following the publication of clinical practice guidelines (CPGs) in five domains for 13 years.

Methods: The Israel Defense Forces Trauma Registry was used to assess practice and adherence to guidelines in five domains: (a) crystalloid transfusions, (b) tranexamic acid use, (c) freeze-dried plasma use, (d) chest decompression, and (e) airway management. All patients injured between January 2006 and December 2018 were included in the analysis.

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Background: A walking blood bank (WBB) refers to the use of fellow combatants for battlefield blood donation. This requires pretesting combatants for infectious diseases and blood type. A fundamental prerequisite for this technique is that the donating soldier will suffer minimal physiological and mental impact.

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Introduction: All modern military jet aircraft are equipped with rocket-assisted ejection systems. Jet aircraft operate in the majority of the conflict regions throughout the world, and in nearly all modern countries during peacetime. Civilian and military emergency services may be called upon to treat aircrews that have ejected and should be familiar with the common injury patterns associated with aircraft ejection.

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Background: Trauma is the leading cause of death among casualties between 1 and 44 years. A large proportion of trauma deaths occurs even before arriving at a medical facility. The paucity of prehospital data is a major reason for the lagging development of prehospital trauma care research.

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Designing optimal, Bayesian decision-theoretic trials has traditionally required the use of computationally-intensive backward induction. While methods for addressing this barrier have been put forward, few are both computationally tractable and non-myopic, with applications of the Gittins index being one notable example. Here we explore the look-ahead approach with adaptive-randomization, with designs ranging from the fully myopic to the fully informed.

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Background: Data regarding the effect of prehospital blood administration to trauma patients during short-to-moderate time evacuations is scarce. The Israel Air Force Airborne Combat Search and Rescue is the only organization that deals with aeromedical evacuation for both military and civilian casualties in Israel and the only one with the ability to give blood in the prehospital setting.

Methods: Data on packed red blood cells (PRBCs) administration in the evacuation missions from January 2003 to June 2010 were analyzed and actual transfusion practice was compared to clinical practice guidelines (CPGs).

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Background: Hemostatic dressings are advanced topical dressings designed to control hemorrhage by enhancing clot formation. These dressings may be effective when used on injuries sustained in junctional zones. The Israeli Defense Forces Medical Corps (IDF-MC) chose to equip its medical personnel with the QuikClot Combat Gauze.

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