Fatal Head Injury in a 1-Year-Old Child Secured in a Rear-Facing Child Seat by Offset Car-to-Car Collision.

This case study describes a fatal head injury in a 1-year-old child involved in a motor vehicle accident in Japan. The child, secured in a rear-facing child seat, was a passenger in a car driven by their mother when the offset car-to-car collision occurred. The car rotated counterclockwise before coming to a stop. Despite remaining secured in the child seat, the child suffered severe head trauma, leading to cardiac arrest. Autopsy computed tomography revealed a right open depressed fracture, left head contusion, traumatic subarachnoid hemorrhage, intraventricular hemorrhage, and pneumocephalus. The injury mechanism involved the child's head striking the right headrest, followed by a swing to the left, induced by the initial impact and subsequent rotational movement. This case highlights the importance of age-specific data in understanding pediatric injuries in motor vehicle accidents and improving child seat safety measures.

Significance of a Simulation for the Relocation of an Intensive Care Unit.

There have been few reports concerning simulation drills for the relocation of severely ill or injured patients treated in intensive care units (ICUs). We herein report our experience of one such simulation drill. It is a Narrative method. A simulation drill was performed on a weekday 2 weeks prior to the actual relocation. We selected 3 mock patients. The first one was a severely ill and unstable patient, the second had severe stroke, and the third had severe trauma. After the simulation, the average transportation time was 15 minutes. The simulation revealed that mock patients with a percutaneous cardiopulmonary support system and intra-aortic balloon pumping in a standard ICU bed could not be accommodated in the elevator. Furthermore, working the elevator controls resulted in wasted time while transferring the patients. As a result, the number of people, who controlled the elevator, was therefore increased during the actual relocation. During the actual relocation, all patients were transported safely and more quickly than predicted based on the results of the simulation drill. Most physicians and paramedical staff have little experience with relocating ICUs, so a simulation drill was necessary to ensure the safe and prompt transport of patients.

Acute aortic dissection during scuba diving.

A 60-year-old man with hypertension and dyslipidemia complained of chest pain upon ascending from a maximum depth of 27 meters while diving. After reaching the shore, his chest pain persisted, and he called an ambulance. When a physician checked him on the doctor's helicopter, his electrocardiogram (ECG) was normal, and there were no bubbles in his inferior vena cava or heart on a portable ultrasound examination. The physician still suspected that he had acute coronary syndrome instead of decompression illness; therefore, he was transported to our hospital. After arrival at the hospital, standard cardiac echography showed a flap in the ascending aorta. Immediate enhanced computed tomography revealed Stanford type A aortic dissection. The patient obtained a survival outcome after emergency surgery. To our knowledge, this is the first reported case of aortic dissection potentially associated with scuba diving. It highlights the importance of considering aortic dissection in patients with sudden-onset chest pain during physical activity. In addition, this serves as a reminder that symptoms during scuba diving are not always related to decompression. This report also suggests the usefulness of on-site ultrasound for the differential diagnosis of decompression sickness from endogenous diseases that induce chest pain. Further clinical studies of this management approach are warranted.

Patients With Near Arrest Induced by Foreign Body Airway Obstructions Treated by a Physician-Staffed Helicopter.

Acute airway obstruction, whether partial or complete, requires immediate intervention to prevent fatal outcomes. An 81-year-old man with a history of pneumonia experienced respiratory distress after attempting to swallow a large piece of meat. Despite attempts by his daughter, back blows and abdominal thrusts failed to dislodge the obstruction, and he collapsed, prompting an emergency call. Upon the arrival of the emergency medical team, the patient was conscious with good oxygen saturation but deteriorated during transport, becoming unresponsive and unable to cough. Upon assessment by the doctor helicopter team, the patient's condition was critical with low oxygen saturation and unstable vital signs. Using a laryngoscope, the team identified a large meat fragment near the vocal cords and successfully removed it, relieving the obstruction. The patient's respiratory distress improved, and he was transported to the hospital without the need for intubation. Further examination at the hospital revealed sinus tachycardia and lung abnormalities on a computed tomography scan but no significant abnormalities in blood tests. The patient was admitted for observation and received antibiotics for prophylaxis. He recovered well, with no further need for oxygen by the second day and was discharged on the fourth day, highlighting the importance of prompt intervention in airway emergencies.

Bladder deformity accompanied by pelvic fracture indirectly indicates clinical severity.

BACKGROUND: That the bladder can be compressed by extraperitoneal hematoma induced by obstetrics and gynecologic diseases, is well known. However, there have been no reports on the clinical significance of compressed bladder induced by pelvic fracture (PF). We therefore retrospectively investigated the clinical features of compressed bladder induced by the PF. METHODS: From January 2018 to December 2021, we performed a retrospective review of the hospital medical charts of all emergency outpatients who were treated by emergency physicians at the department of acute critical care medicine in our hospital, and who were diagnosed with PF based on computed tomography (CT) on arrival. The subjects were divided into two groups: the Deformity group, in which the bladder was compressed by extraperitoneal hematoma, and the Normal group. Variables were compared between the two groups. RESULTS: During the investigation period, 147 patients with PF were enrolled as subjects. There were 44 patients in the Deformity group and 103 in the Normal group. There were no significant differences between the two groups with regard to sex, age, GCS, heart rate or final outcome. However, the average systolic blood pressure in the Deformity group was significantly lower, and the average respiratory rate, injury severity score, rate of unstable circulation, rate of transfusion and duration of hospitalization in the Deformity group were significantly greater in comparison to the Normal group. CONCLUSIONS: The present study showed that bladder deformity induced by PF tended to be a poor physiological sign that was associated with severe anatomical abnormality, unstable circulation requiring transfusion, and long hospitalization. Accordingly, physicians should evaluate shape of bladder when treating PF.

Usefulness of Key Word Methods to Execute Early Requests for a Physician-Staffed Helicopter Emergency Medical Service Dispatch to Facilitate Early Medical Intervention by Physicians.

OBJECTIVE: A physician-staffed helicopter emergency medical service is called a doctor helicopter (DH) in Japan. We retrospectively investigated this service using a data bank provided by the Japan DH registry system. METHODS: The following details of the dispatch activity were collected: patient age and sex, vital signs (Japan Coma Scale [JCS], systolic blood pressure, heart rate, and respiratory rate) at the scene measured by emergency medical technicians (EMTs), dispatch of the DH before the EMTs made contact with patients (key words group) or after (control group), and the survival outcome at 1 month. RESULTS: During the investigation period, 28,357 patient records were analyzed (key words group, n = 13,861; control group, n = 14,496). The age, JCS, and respiratory rate were significantly smaller in the key words group than in the control group. The rates of male sex and survival in the key words group were significantly greater than those in the control group. In the multivariate analysis, dispatch of the DH after EMTs made contact with the patients (odds ratio [OR] = 0.72; 95% confidence interval [CI], 0.55-0.92), female sex (OR = 0.86; 95% CI, 0.75-0.98), older age (OR = 0.97; 95% CI, 0.96-0.97), elevated respiratory rate (OR = 0.97; 95% CI, 0.97-0.98), and high JCS (OR = 0.99; 95% CI, 0.99-0.99) were associated with a decreased 1-month survival (P > .0001). CONCLUSION: This is the first report to describe the key words method as a potential factor influencing optimal outcomes/potential survival rates in patients evacuated by the DH using the JDRS. Our study results suggest that the firefighting central command room should consider adopting the key words method when the helicopter emergency medical service is used.

Transportation of Medical Staff by Helicopter to Manage a Concealed Delivery at Home.

An unmarried pregnant woman felt lower abdominal pain. She rested in bed in her room on the second floor in her home. The next day she performed a delivery by herself. After the neonate cried, her parents noticed the birth and called an ambulance. After receiving the first call, the fire department decided to request the dispatch of a physician-staffed helicopter emergency medical service in Eastern Shizuoka, in addition to dispatching an ambulance. After receiving the request, the helicopter emergency medical service transported 1 neonatal intensive care unit physician along with the original medical staff members of the fire department. Then, the 3 medical staff members were transported to the home by another ambulance. When emergency medical technicians climbed up a steep narrow ladder to enter the room, both the mother and female neonate were connected by the umbilical cord. Their vital signs were stable. At 30 minutes after delivery, the medical staff reached the mother and neonate and cut the umbilical cord. The mother and neonate were evacuated separately from the room but transported in the same ambulance. The ambulance transported them with the medical staff members to our hospital directly. Their postadmission courses were uneventful, and they were discharged. This is the first case report to send medical staff members to the patient's home by helicopter and ambulance to provide medical intervention for the neonate and her mother. Further prospective studies are needed in the future to determine whether this action could lead to favorable outcomes in both neonates and maternal bodies.

A Comparison of Tube Thoracostomy for Chest Trauma Between Prehospital and Inhospital Settings.

OBJECTIVE: We compared the outcomes of patients with tube thoracostomy for chest trauma between the prehospital and inhospital settings. METHODS: The subjects were then divided into 2 groups: the prehospital group, which included subjects who underwent tube thoracostomy in the prehospital setting, and the inhospital group, which included subjects who underwent tube thoracostomy in the inhospital setting. The variables were compared between the 2 groups. RESULTS: There were no significant differences between the 2 groups with regard to gender, age, history, mechanism of injury, infusion of antibiotics, white blood cell count, duration of insertion of a chest drain, mechanical ventilation, complication of drain infection, duration of admission, or final outcome. However, the Injury Severity Score, maximum C-reactive protein level, and maximum temperature during hospitalization in the prehospital group (n = 15) were significantly greater than those in the inhospital group (n = 119). CONCLUSION: The present study suggested that thoracostomy performed by physicians in the prehospital setting was safe and did not have an increased risk of infection. In addition, thoracostomy for chest injury in the prehospital setting suggested an improvement in the likelihood of a survival outcome.

Use of a Helicopter Emergency Medical Service Hangar as a Staging Care Unit in a Disaster-Affected Area.

OBJECTIVE: There are a few reports regarding the use of a hangar as a temporal medical facility (staging care unit [SCU]) during large-scale disasters. The aim of this study was to describe the activities performed by disaster medical assistance teams (DMATs) at the hangar of the eastern Shizuoka physician-staffed helicopter as an SCU in the 2022 Shizuoka Prefecture disaster drill. METHODS: We selected the narrative method for this study. RESULTS: Four DMATs helped manage the SCU at the hangar. During the training period, there were 3 instances of a mock doctor helicopter landing and takeoff and 1 actual eastern Shizuoka doctor helicopter landing and takeoff while transporting a mock burn patient. Four DMATs treated 3 mock patients in addition to receiving training regarding medical materials. Such an SCU was able to reduce the burden on the disaster base hospital because many severely ill or traumatized mock patients were transported to the hospital. However, an evaluation meeting held after the drill revealed problems with lifelines, safety management, stock, and quality management of materials in an actual disaster situation. CONCLUSION: We reported our experience with a training exercise using a hangar of the eastern Shizuoka doctor helicopter as an SCU in the 2022 Shizuoka Prefecture disaster drill. There are advantages and disadvantages to using the hangar of a doctor helicopter in this way, so further investigation will be necessary.

Patients With Atrioventricular Block Transported by a Physician-Staffed Helicopter in Japan From 2015 to 2020.

OBJECTIVE: We retrospectively investigated the current status of patients with atrioventricular block (AVB) who had been transported by the physician-staffed helicopter emergency medical service and their final outcome using data from the Japan Doctor Helicopter Registry (JDHR) system. METHODS: The following details of the dispatch activity were collected from the database of the JDHR: age and sex, vital signs when emergency medical technicians encountered the patient at the scene and on arrival at the receiving hospitals, contents of the medical intervention, new cardiac arrest during transportation, the main etiology of AVB, and the number of deaths in 1 month. The changes in vital signs between the scene and upon arrival at the hospital were compared. RESULTS: A total of 99 patients had complete AVB. The average age of the patients was 75 years, and there was a male predominance. All subjects were evacuated from the scene. Among the 62 subjects who received the drugs, 18 received atropine. Six patients underwent percutaneous pacing. None of the patients developed a new cardiac arrest during transportation. The average Glasgow Coma Scale score and heart rate upon arrival at the hospital were significantly greater than those at the scene. CONCLUSION: The present study showed the current status of patients with AVB who were transported by a doctor helicopter using registry data from the JDHR. The present findings suggest that a doctor helicopter could provide safe transportation for patients with AVB.