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This is an emergency medicine oral board-style case of severe facial trauma. An intoxicated patient presents to the emergency department with facial swelling and bleeding after trauma and is found to have a Le Fort III fracture with significant facial swelling, ecchymosis, missing teeth, and bleeding from the oropharynx. Successful completion of the case includes suctioning the airway, repositioning the patient, opening the airway, intubating the patient using an awake or facilitated look technique, and obtaining CTs of the head, C-spine, and facial bones. The patient’s final diagnosis is Le Fort III fracture and facial hemorrhage. The oropharynx continues to bleed, requiring packing and emergent otolaryngology or oral maxillofacial surgery consultation. This chapter discusses specific considerations for difficult airway management in the setting of significant facial trauma.
1. It is important to check coagulation parameters and review the peripheral smear in patients with acute promyelocytic leukemia (APL) in the differential diagnosis.
2. Patients with APL are at risk for increased early mortality from catastrophic bleeding.
3. Thrombotic events are less common but can occur.
4. It is essential to consult Hematology/Oncology in the ED to start all-trans retinoic acid (ATRA) as soon as possible.
5. Consider differentiation syndrome in APL patients started on ATRA treatment who present clinically with findings such as fever, weight gain, respiratory distress, and peripheral edema and workup concerning for new pulmonary infiltrates, pericardial effusion, hypotension, or renal failure
Abusive head trauma (AHT) is a leading cause of traumatic death in infants, often resulting in severe brain injuries with lifelong consequences. It can cause cognitive, sensory and behavioral impairments, which may not fully emerge until later in childhood. AHT injuries are typically classified as primary (direct mechanical damage, such as contusions and lacerations) or secondary (indirect effects like hypoxic-ischemic injury and cerebral edema).
Infants are particularly vulnerable due to factors like poor neck control, larger head size and incomplete brain development. Neuroimaging, especially MRI and diffusion-weighted imaging, is essential for diagnosing these injuries and tracking their evolution, as some manifestations develop over days or weeks. Mechanisms of cell death, including necrosis, apoptosis and autophagy, play a key role in the progression of brain damage.
Differentiating AHT from accidental trauma is challenging. Certain patterns, such as subdural hemorrhages with ischemic injury, strongly suggest abuse. Comprehensive imaging, clinical evaluation and follow-up are crucial for documenting injury progression and understanding its impact on the developing brain.
This study focuses on early recognition of carotid blowout syndrome type 1 (threatened artery) and the results of integrity restoration of the surrounding tissue by a pectoralis major myofascial flap.
Methods
This retrospective study included all patients in the period 2010–2020 with carotid blowout syndrome type 1 of the common or internal carotid artery, treated by pectoralis major myofascial flap.
Results
Fifteen patients with carotid blowout syndrome type 1 were included, all but one after previous radiotherapy with a total dose up to 136 Gray (range 46–136). Median time from diagnosis till treatment was 1 day. None of the patients progressed to actual bleeding (type 2 or 3).
Conclusion
Carotid blowout syndrome type 1 should be early recognised and treated by insertion of a pectoralis major myofascial flap that protects the common or internal carotid artery and might prevent progression to a potentially fatal bleed. In our opinion, this policy should be part of the algorithmic approach of this complication.
To localise bleeding points identified in patients with intractable epistaxis.
Methods
We reviewed all patients with intractable epistaxis who underwent endoscopic nasal examination under anaesthesia between 1989 and 2024 in a tertiary otolaryngology unit in Ireland.
Results
In total, 194 patients were included. Bleeding points were identified in 85 per cent of patients (165 cases). In addition, 89 patients (46 per cent) had bleeding from the septum, 70 (36 per cent) of which were high on the anterosuperior septum above the axilla of the middle turbinate. It was also found that 77 patients (40 per cent) had bleeding from the lateral nasal wall: 44 (23 per cent) at the posterior end of the middle meatus and 33 (17 per cent) at the posterior end of the inferior meatus.
Conclusion
This study describes remarkably consistent bleeding point localisation in epistaxis failing first-line measures. We recommend detailed endoscopic examination as a first-line intervention in such instances. Direct cauterisation is the simplest method for controlling epistaxis, avoiding complex procedures such as arterial ligation or embolisation.
Uterine extensions occur in <10% of cesarean deliveries, with extensions into the broad ligament being the least common. The highest rate of extensions at the time of a cesarean delivery are during the second stage of labor, ranging from 14 to 26%. If pushing lasts for >4 hours, that rate increases to 40%. These patients have a higher rate of postpartum hemorrhage, but there are no other risk factors clearly identified in the literature. Therefore, prevention of extensions is critical. This can be accomplished with a uterine incision that is expanded with a blunt, cephalad-caudad technique, as well as by using several evidence-based methods as detailed in Case 53. Visualization is key during management, and for this you may need additional help. Small, stable broad ligament hematomas can be monitored, whereas an expanding hematoma is an obstetric emergency, requiring pressure or rapid surgical management. If a hematoma expands despite an O’Leary stitch and uterotonics, IR consultation for embolization is a first-line intervention. If unavailable, it may be necessary to evacuate the hematoma and attempt to isolate the bleeding vessels for ligation. If the patient is unstable or the hematoma continues to expand, consider internal iliac artery/hypogastric artery ligation and/or hysterectomy. Finally, cystoscopy is necessary if the extension is near the ureter or the bladder.
In the United States, all 50 states and the District of Columbia have Good Samaritan Laws (GSLs). Designed to encourage bystanders to aid at the scene of an emergency, GSLs generally limit the risk of civil tort liability if the care is rendered in good faith. Nation-wide, a leading cause of preventable death is uncontrolled external hemorrhage. Public bleeding control initiatives aim to train the public to recognize life-threatening external bleeding, perform life-sustaining interventions (including direct pressure, tourniquet application, and wound packing), and to promote access to bleeding control equipment to ensure a rapid response from bystanders.
Methods:
This study sought to identify the GSLs in each state and the District of Columbia to identify what type of responder is covered by the law (eg, all laypersons, only trained individuals, or only licensed health care providers) and if bleeding control is explicitly included or excluded in their Good Samaritan coverage.
Results:
Good Samaritan Laws providing civil liability qualified immunity were identified in all 50 states and the District of Columbia. One state, Oklahoma, specifically includes bleeding control in its GSLs. Six states – Connecticut, Illinois, Kansas, Kentucky, Michigan, and Missouri – have laws that define those covered under Good Samaritan immunity, generally limiting protection to individuals trained in a standard first aid or resuscitation course or health care clinicians. No state explicitly excludes bleeding control from their GSLs, and one state expressly includes it.
Conclusion:
Nation-wide across the United States, most states have broad bystander coverage within GSLs for emergency medical conditions of all types, including bleeding emergencies, and no state explicitly excludes bleeding control interventions. Some states restrict coverage to those health care personnel or bystanders who have completed a specific training program. Opportunity exists for additional research into those states whose GSLs may not be inclusive of bleeding control interventions.
Identifying patients at imminent risk of death is critical in the management of trauma patients. This study measures the vital sign thresholds associated with death among trauma patients.
Methods:
This study included data from patients ≥15 years of age in the American College of Surgeons Trauma Quality Improvement Program (TQIP) database. Patients with vital signs of zero were excluded. Documented prehospital and emergency department (ED) vital signs included systolic pressure, heart rate, respiratory rate, and calculated shock index (SI). The area under the receiver operator curves (AUROC) was used to assess the accuracy of these variables for predicting 24-hour survival. Optimal thresholds to predict mortality were identified using Youden’s Index, 90% specificity, and 90% sensitivity. Additional analyses examined patients 70+ years of age.
Results:
There were 1,439,221 subjects in the 2019-2020 datasets that met inclusion for this analysis with <0.1% (10,270) who died within 24 hours. The optimal threshold for prehospital systolic pressure was 110, pulse rate was 110, SI was 0.9, and respiratory rate was 15. The optimal threshold for the ED systolic was 112, pulse rate was 107, SI was 0.9, and respiratory rate was 21. Among the elderly sub-analysis, the optimal threshold for prehospital systolic was 116, pulse rate was 100, SI was 0.8, and respiratory rate was 21. The optimal threshold for ED systolic was 121, pulse rate was 95, SI was 0.8, and respiratory rate was 21.
Conclusions:
Systolic blood pressure (SBP) and SI offered the best predictor of mortality among trauma patients. The SBP values predictive of mortality were significantly higher than the traditional 90mmHg threshold. This dataset highlights the need for better methods to guide resuscitation as initial vital signs have limited accuracy in predicting subsequent mortality.
Hematological disorders are a heterogeneous group that may be inherited or acquired. During pregnancy the condition may improve, stabilize, or deteriorate due to normal physiological changes. Major risks in women are hemorrhage or thrombosis; inherited conditions may affect fetus as well. A multidisciplinary team is required to manage the pregnancy, delivery, and postpartum. This chapter reviews and summarizes the literature on maternal and fetal outcomes with a focus on anesthetic considerations and publications.
Thrombotic microangiopathies (TMA) are a group of conditions characterized by excessive platelet activation, resulting in microvascular thrombi and platelet consumption (thrombocytopenia). The thrombosed microvasculature shears red blood cells (RBCs), causing microangiopathic hemolytic anemia. Primary TMAs include thrombotic thrombocytopenic purpura (TTP) and hemolytic uremic syndrome (HUS), while secondary TMAs result from infection, pregnancy, malignancy, drugs and toxins, among other causes.
TMAs do not directly involve the coagulation cascade, and therefore do not prolong coagulation studies. Microthrombi may result in ischemic complications in any organ system.
Severe pelvic fractures are a major cause of morbidity and mortality in trauma patients. As hemorrhage is the main cause of mortality in pelvic trauma, it is critical to assess hemodynamic stability and identify ongoing bleeding in the chest, abdomen and long bones. If no clear source of hemorrhage is identified and a patient remains unstable, suspicion for primary pelvic hemorrhage should be high. Suspect pelvic fracture in all cases of serious or multisystem trauma patients.
In pelvic trauma, there is a high incidence of associated injuries; therefore, special attention should be paid to the rectal and urogenital examinations. The most commonly used classification system for pelvic fractures is the Young–Burgess system. This system categorizes injuries on the basis of mechanism of injury and can be used to predict the risk of blood loss.
Optimal initial management of the trauma patient during the first several hours after injury offers the best chance of a good outcome. Patient management consists of rapid primary survey, resuscitation of vital functions, a more detailed secondary assessment, diagnostic tests to ascertain the extent of traumatic injury and finally, the initiation of definitive care.
Uncontrolled trauma-related hemorrhage remains the primary preventable cause of death among those with critical injury.
Study Objective:
The purpose of this investigation was to evaluate the types of trauma associated with critical injury and trauma-related hemorrhage, and to determine the time to definitive care among patients treated at major trauma centers who were predicted to require massive transfusion.
Methods:
A secondary analysis was performed of the Pragmatic, Randomized, Optimal Platelet and Plasma Ratios (PROPPR) trial data (N = 680). All patients included were predicted to require massive transfusion and admitted to one of 12 North American trauma centers. Descriptive statistics were used to characterize patients, including demographics, type and mechanism of injury, source of bleeding, and receipt of prehospital interventions. Patient time to definitive care was determined using the time from activation of emergency services to responder arrival on scene, and time from scene departure to emergency department (ED) arrival. Each interval was calculated and then summed for a total time to definitive care.
Results:
Patients were primarily white (63.8%), male (80.3%), with a median age of 34 (IQR 24-51) years. Roughly one-half of patients experienced blunt (49.0%) versus penetrating (48.2%) injury. The most common types of blunt trauma were motor vehicle injuries (83.5%), followed by falls (9.3%), other (3.6%), assaults (1.8%), and incidents due to machinery (1.8%). The most common types of penetrating injuries were gunshot wounds (72.3%), stabbings (24.1%), other (2.1%), and impalements (1.5%). One-third of patients (34.5%) required some prehospital intervention, including intubation (77.4%), chest or needle decompression (18.8%), tourniquet (18.4%), and cardiopulmonary resuscitation (CPR; 5.6%). Sources of bleeding included the abdomen (44.3%), chest (20.4%), limb/extremity (18.2%), pelvis (11.4%), and other (5.7%). Patients waited for a median of six (IQR4-10) minutes for emergency responders to arrive at the scene of injury and traveled a median of 27 (IQR 19-42) minutes to an ED. Time to definitive care was a median of 57 (IQR 44-77) minutes, with a range of 12-232 minutes. Twenty-four-hour mortality was 15% (n = 100) with 81 patients dying due to exsanguination or hemorrhage.
Conclusion:
Patients who experience critical injury may experience lengthy times to receipt of definitive care and may benefit from bystander action for hemorrhage control to improve patient outcomes.
The Stop the Bleed campaign provided civilians with tourniquet application training and increased the demand for tourniquets among the general population, which led to the development of new commercially available devices. However, most widely available tourniquets have not undergone testing by regulatory bodies and their efficacy remains unknown.
Study Objective:
This study aimed to compare the efficacy and performance of Combat Application Tourniquets (CAT) versus uncertified tourniquets.
Methods:
This study compared 25 CAT with 50 commercially available “look-alike” tourniquets (LA-TQ) resembling the CAT. The CAT and the LA-TQ were compared for cost, size, and tested during one-hour and six-hour applications on a manikin’s leg. The outcomes were force applied, force variation during the application, and tourniquet rupture rate.
Results:
The LA-TQ were cheaper (US$6.07 versus US$27.19), shorter, and had higher inter-device variability than the CAT (90.1 [SE = 0.5] cm versus 94.5 [SE = 0.1] cm; P <.001). The CAT applied a significantly greater force during the initial application when compared to the LA-TQ (65 [SE = 3] N versus 14 [SE = 1] N; P <.001). While the initial application force was maintained for up to six hours in both groups, the CAT group applied an increased force during one-hour applications (group effect: F [1,73] = 105.65; P <.001) and during six-hour applications (group effect: F [1,12] = 9.79; P = .009). The rupture rate differed between the CAT and the LA-TQ (0% versus 4%).
Conclusion:
The LA-TQ applied a significantly lower force and had a higher rupture rate compared to the CAT, potentially affecting tourniquet performance in the context of public bleeding control. These findings warrant increased layperson education within the framework of the Stop the Bleed campaign and further investigations on the effectiveness of uncertified devices in real-world applications.
Hemorrhage control prior to shock onset is increasingly recognized as a time-critical intervention. Although tourniquets (TQs) have been demonstrated to save lives, less is known about the physiologic parameters underlying successful TQ application beyond palpation of distal pulses. The current study directly visualized distal arterial occlusion via ultrasonography and measured associated pressure and contact force.
Methods:
Fifteen tactical officers participated as live models for the study. Arterial occlusion was performed using a standard adult blood pressure (BP) cuff and a Combat Application Tourniquet Generation 7 (CAT7) TQ, applied sequentially to the left mid-bicep. Arterial flow cessation was determined by radial artery palpation and brachial artery pulsed wave doppler ultrasound (US) evaluation. Steady state maximal generated force was measured using a thin-film force sensor.
Results:
The mean (95% CI) systolic blood pressure (SBP) required to occlude palpable distal pulse was 112.9mmHg (109-117); contact force was 23.8N [Newton] (22.0-25.6). Arterial flow was visible via US in 100% of subjects despite lack of palpable pulse. The mean (95% CI) SBP and contact force to eliminate US flow were 132mmHg (127-137) and 27.7N (25.1-30.3). The mean (95% CI) number of windlass turns to eliminate a palpable pulse was 1.3 (1.0-1.6) while 1.6 (1.2-1.9) turns were required to eliminate US flow.
Conclusions:
Loss of distal radial pulse does not indicate lack of arterial flow distal to upper extremity TQ. On average, an additional one-quarter windlass turn was required to eliminate distal flow. Blood pressure and force measurements derived in this study may provide data to guide future TQ designs and inexpensive, physiologically accurate TQ training models.
Major haemorrhage is a rare complication after chemoradiotherapy for oropharyngeal squamous cell carcinoma. This is managed by interventional neuroradiology with endovascular embolisation of the bleeding vessel. This study aimed to describe radiological and clinical predictors of haemorrhage.
Methods
A retrospective case series was conducted of all patients with oropharyngeal squamous cell carcinomas who suffered a major haemorrhage requiring embolisation during or after treatment with chemoradiotherapy or radiotherapy alone, between 2013 and 2021, in Western Australia.
Results
This study included 14 patients, in two groups: haemorrhage group (n = 70) and tumour stage matched non-haemorrhage group (n = 7). Patients who haemorrhaged had a larger average transverse axial tumour size on pre-treatment computed tomography (38 mm vs 22 mm; p = 0.02) and tumours tended to involve the proximal aspect of the offending bleeding vessel. All patients who haemorrhaged developed deep cavitating or ulcerative tumour bed changes on post-treatment imaging (p < 0.0001).
Conclusion
Tumour bed ulceration or cavitation appears to be highly predictive of haemorrhage in this patient cohort.
This study aimed to determine the efficacy of probiotic gargles compared with placebo gargles on reducing post-tonsillectomy morbidity in adults.
Method
This was a triple-blind, randomised, controlled trial and feasibility study. Thirty adults underwent elective tonsillectomy and were randomly assigned to receive either probiotic or placebo gargles for 14 days after surgery. Daily pain scores and requirement of analgesia were measured for 14 days post-operatively. Secondary outcomes assessed probiotic safety and tolerability and the feasibility of the trial.
Results
The probiotic group experienced less pain at rest on day 2. However, the amount of oxycodone (5 mg) tablets used was greater in the probiotic group compared with placebo. There were no statistically significant differences in the frequency of adverse effects between both groups. This trial was feasible.
Conclusion
This pilot study suggested that probiotic gargles do not reduce post-tonsillectomy pain or bleeding, highlighting the importance of pilot and feasibility studies in clinical research.
A 28-year-old gravida 3, para 2, last menstrual period eight weeks ago, presents for confirmation of pregnancy. She reports mild nausea and fatigue. She has regular menses and reports that she and her partner have been trying to conceive. Her obstetric history is significant for a full-term cesarean delivery for malpresentation and a first-trimester abortion requiring dilation and curettage. She has no past medical history. She is currently taking prenatal vitamins and she is allergic to penicillin.
A 28-year-old female para 0, non-smoker, presents to discuss management of adenocarcinoma in situ (AIS) on colposcopic biopsy. She has been in a mutually monogamous relationship for the past four years, has had two lifetime partners, and uses combined oral contraceptive pills (COCs; ethinyl estradiol 20 mcg/norethindrone 1 mg PO daily) for contraception. She has no past surgical history and no known drug allergies. She had a normal wellness examination three months ago and completed the HPV vaccination series at age 26. Her past medical history is significant for abnormal Pap smear. Her cervical cancer screening history is as follows: