Acute Life-threatening Events Research Articles

Non-traumatic pediatric intracranial hypertension: key points for different etiologies, diagnosis, and treatment.

Intracranial hypertension can be an acute life-threatening event or slowly deteriorating condition, leading to a gradual loss of neurological function. The diagnosis should be taken in a timely fashioned process, which mandates expedite measures to save brain function and sometimes life. An optimal management strategy is selected according to the causative etiology with a core treatment paradigm that can be utilized in various etiologies. Distinct etiologies are intracranial bleeds caused by traumatic brain injury, spontaneous intracranial hemorrhage (e.g., neonatal intraventricular hemorrhage), or the rare pediatric hemorrhagic stroke. The other primary pediatric etiologies for elevated intracranial pressure are intracranial mass (e.g., brain tumor) and hydrocephalus related. Other unique etiologies in the pediatric population are related to congenital diseases, infectious diseases, metabolic or endocrine crisis, and idiopathic intracranial pressure. One of the main goals of treatment is to alleviate the growing pressure and prevent the secondary injury to brain parenchyma due to inadequate blood perfusion and eventually inadequate parenchymal oxygenation and metabolic state. Previous literature discussed essential characteristics of the treatment paradigm derived mainly from pediatric brain traumatic injuries' treatment methodology. Yet, many of these etiologies are not related to trauma; thus, the general treatment methodology must be tailored carefully for each patient. This review focuses on the different possible non-traumatic etiologies that can lead to intracranial hypertension with the relevant modification of each etiology's treatment paradigm based on the current literature.

Iatrogenic Pleural Effusion Due to Extravasation of Parenteral Nutrition via an Epicutaneo Cava Catheter in Neonates: A Prospective Cohort Study.

Background: Although Epicutaneo cava catheters (ECCs) are being routinely used for intravenous access for long-term parenteral nutrition and prolonged medication administration in neonates, ECC use can be associated with rare but acute life-threatening events such as pleural effusion (PE). It is important to identify and maintain the ECC tip in a central location for preventing complications. Recently, intracavitary electrocardiogram (IC-ECG) has been developed for the real-time monitoring and verification of ECC tip position.Objective: To investigate the causes and preventive measures of ECC-related PE in neonates.Methods: This prospective cohort study was conducted between January 2013 and December 2017. We observed and analyzed the clinical characteristics and causes of ECC-related PE. From January to December 2017, all ECCs were guided by IC-ECG. The incidence of ECC-related PE and first-attempt success rates were analyzed before and after the introduction of IC-ECG. Additionally, the sensitivity and specificity of IC-ECG were evaluated.Results: ECC-related PE was identified in 14 infants. Catheters were malpositioned in three cases; in the other 11 cases, catheters were located centrally on insertion but had migrated to non-central locations at the time of PE. After the introduction of IC-ECG, the incidence of PE was zero (P < 0.05). The incidence of ECC-related PE was lower when veins of the lower extremities were selected as the insertion site (P < 0.05). The first-attempt success rate was significantly higher in the group with IC-ECG-guided ECC placement than in the group without (P < 0.05). The sensitivity and specificity of IC-ECG were 97.9 and 84.6%, respectively.Conclusion: ECC-related PE can be associated with either primary malposition or migration of the catheter tip. IC-ECG can help detect malposition and migration of catheter tips and improve the first-attempt success rate. Choosing a lower extremity insertion site may help decrease the rate of ECC-related PE. In neonates, IC-ECG is a reliable positioning method for ECCs with superior sensitivity and specificity.

Oncological Emergencies from Pathophysiology and Diagnosis to Treatment: A Narrative Review

ABSTRACT Oncological emergencies are defined as any acute possible morbid or life-threatening events in patients with cancer either because of the malignancy or because of their treatment. These events may occur at any time during malignancy, from symptoms present to end-stage disease. The aim of this study is the review of urgent conditions results from cancer or cancer treatment side effects that need to be addressed immediately. In this study, a comprehensive and in-depth narrative review was carried out by searching the databases of PubMed, Scopus, Science Direct, Google Scholar with the keywords of “cancer, emergency, metabolic emergency, neutropenic fever” along with the words, “tumor lysis syndrome, chemotherapeutic emergency, diagnosis, treatment “ in last two decades. Patients suffering from cancer mostly face the challenges that we are classified in different categories, including metabolic, hematologic, cardiovascular, neurologic, respiratory, infectious, and chemotherapeutic emergencies. These patients mostly complain of headaches, nausea, pain, and fever. In conclusion, knowledge of oncology emergencies and palliative care as part of a team approach is critical for treating cancer patients. In this light, it is pivotal for physicians to focus on the early detection of oncological emergencies. Moreover, training programs for cancer patients help them to timely recognize and report the oncologic emergency symptoms, leading to avoid deleterious consequences and unnecessary healthcare costs as well as improve the quality of life in these patients.

Sleeve gastrectomy in class 1 obesity: Assessment of operative outcomes.

The risk/benefit ratio of sleeve gastrectomy (SG), especially in patients without type 2 diabetes (T2D), is unknown for patients with class 1 obesity. Assessment of operative outcomes of SG in class 1 obesity. Private practice. Candidates for a primary SG with body mass index 30-35 kg/m2 after 5 years of unsuccessful dieting were included after informed consent was obtained. Participants who did not complete 3-month follow-up and those who underwent modified SGs were excluded. Data and complications were recorded prospectively. Patients were followed up at 3, 6, and 12 months and yearly thereafter. Definition of presence and remission of T2D and insulin resistance were set according to guidelines. Effects on weight loss parameters were evaluated with Wilcoxon signed-rank test. Between 2012 and 2020, 143 consecutive SGs were performed in patients with class 1 obesity without conversion, leak, mortality, or a venous event. Two were lost to follow-up. In 141 participants, 2 bleedings and 1 colon perforation occurred (2.1% rate for acute life-threatening events). During a mean follow-up of 25.9 months; 1 case of functional stenosis and 4 cases of de novo symptomatic cholelithiasis clinically became evident in different patients, all requiring reoperation. Therefore a 5.6% rate of major complications were identified at 2 years. The benefit on weight loss was immediate and permanent (P < .001). T2D and insulin resistance were in remission in 100% and 98.1% of participants at 1 year, respectively. The 5.6% major complication rate reflects a minimum because more de novo symptomatic gallstones and stenosis are yet to occur or overlooked. Additionally, this excludes patients with de novo reflux and malnutrition, dissatisfaction issues, or recidivism. Caution is required to freely operate on patients with class 1 obesity with no co-morbidity. Evidence-based outcome data are lacking to balance the reported risks.

Use of reflective materials during phototherapy for newborn infants with unconjugated hyperbilirubinaemia.

Phototherapy is a well-established effective therapy for treating babies with significant neonatal jaundice. Studies have shown that increasing light intensity will increase its efficiency. A potentially inexpensive and easy way of increasing the intensity of light on the body of the infant may be to hang reflective materials from the sides of phototherapy units. To assess the effects of reflective materials in combination with phototherapy compared with phototherapy alone for unconjugated hyperbilirubinaemia in neonates. We used the standard search strategy of Cochrane Neonatal to search the Cochrane Central Register of Controlled Trials (CENTRAL; 2019, Issue 11), in the Cochrane Library; Ovid MEDLINE(R) and Epub Ahead of Print, In-Process & Other Non-Indexed Citations, Daily and Versions(R); and the Cumulative Index of Nursing and Allied Health Literature (CINAHL), on 1 November 2019. We also searched clinical trials databases and the reference lists of retrieved articles for randomised controlled trials and quasi-randomised trials. We included randomised and quasi-randomised controlled trials if the participants, who were term or preterm infants, received phototherapy with curtains made of reflective materials of any type in the treatment arm, and if those in the comparison arm received similar phototherapy without curtains or other intensified phototherapy, such as a double bank of lights. We used standard methodological procedures expected by Cochrane. We used the GRADE approach to assess the certainty of evidence. Of 15 studies identified, we included 12 (1288 babies) in the review - 11 comparing phototherapy with reflective materials and phototherapy alone, and one comparing a single phototherapy light bank with reflective materials with double phototherapy. All reflective materials consisted of curtains on three or four sides of the cot and were made of white plastic (five studies), white linen (two studies), or aluminium (three studies); materials were not specified in two studies. Only 11 studies (10 comparing reflective materials versus none and one comparing reflective curtains and a single bank of lights with a double (above and below) phototherapy unit) provided sufficient data to be included in the meta-analysis. Two excluded studies used the reflective materials in a way that did not meet our inclusion criteria, and we excluded one study because it compared four different phototherapy interventions not including reflective materials. The risk of bias of included studies was generally low, but all studies had high risk of performance bias due to lack of blinding of the intervention. Three studies (281 participants) reported a decline in serum bilirubin (SB) (μmol/L) at four to eight hours (mean difference (MD) -14.61, 95% confidence interval (CI) -19.80 to -9.42; I² = 57%; moderate-certainty evidence). Nine studies (893 participants) reported a decline in SB over 24 hours and showed a faster decline in SB in the intervention group, but heterogeneity (I² = 97%) was too substantial to permit a meaningful estimate of the actual effect size (very low-certainty evidence). Subgroup analysis by type of reflective material used did not explain the heterogeneity. Exchange transfusion was reported by two studies; both reported none in either group. Four studies (466 participants) reported the mean duration of phototherapy, and in each of these studies, it was reduced in the intervention group but there was substantial heterogeneity (I² = 88%), precluding meaningful meta-analysis of data. The only two studies that reported the mean duration of hospital stay in hours showed a meaningful reduction (MD -41.08, 95% CI -45.92 to -36.25; I² = 0; moderate-certainty evidence). No studies reported costs of the intervention, parental or medical staff satisfaction, breastfeeding outcomes, or neurodevelopmental follow-up. The only study that compared use of curtains with double phototherapy reported similar results for both groups. Studies that monitored adverse events did not report increased adverse events related to the use of curtains, including acute life-threatening events, but other rarer side effects could not be excluded. Moderate-certainty evidence shows that the use of reflective curtains during phototherapy may result in greater decline in SB. Very low-certainty evidence suggests that the duration of phototherapy is reduced, and moderate-certainty evidence shows that the duration of hospital stay is also reduced. Available evidence does not show any increase in adverse events, but further studies are needed.

Delivery room desaturations and bradycardia in the early postnatal period of healthy term neonates – a prospective observational study

Objective It has been suggested that desaturations and bradycardia precede acute life-threatening events (ALTE) and that ALTE is more common in the delivery room than later in life. However, frequency, duration and severity of desaturations in the first hours of life and additional risk factors have not readily been studied. Methods Term neonates (n = 100) were monitored for the first two hours after birth by pulse oximetry. The impact of maternal and perinatal factors on the frequency and severity of desaturations (<85%) and bradycardia (<80/min) was evaluated. Results Desaturations were detected in 30%, prolonged desaturations in 25% of infants. Desaturations were observed significantly more often in infants born by planned Cesarean section (pCs) compared to other modes of delivery (pCs 20/49; others 10/51; p = .029). Desaturations were also more frequent in infants diagnosed with neonatal infection (NI) or infants born to a mother with gestational diabetes (GDM), although not significantly. No bradycardia <80/min was detected. Conclusions In our collective 4% of healthy term neonates had prolonged, clinically relevant desaturations in the first hours after birth. The mode of delivery and maternal risk factors may increase the risk for these events. However, our cohort was too small to detect any ALTE or SIDS and determine potential risk factors for these events. Our data lay ground for a large-scale prospective trial to investigate whether the mode of delivery could be an indication for general pulse oximetry monitoring of newborn in the delivery room.

Dysphagia and Chronic Pulmonary Aspiration in Children

1. James D. Tutor, MD* 1. *Program in Pediatric Pulmonary Medicine, University of Tennessee Health Science Center, LeBonheur Children’s Hospital, and St. Jude Children’s Research Hospital, Memphis, TN * Abbreviations: FEES: : fiberoptic endoscopic evaluation of swallowing FEESST: : fiberoptic endoscopic evaluation of swallowing with sensory testing GER: : gastroesophageal reflux VFSS: : videofluoroscopic swallow study Dysphagia and the accompanying pulmonary aspiration are frequently unrecognized by pediatricians and caregivers as a cause of chronic respiratory symptoms such as recurrent wheezing, recurrent pneumonias, chronic cough, stridor, and brief resolved unexplained events (formerly known as acute life-threatening events). In addition, clinicians may be unfamiliar with the proper evaluation or treatment of patients with dysphagia and chronic aspiration. After completing this article, readers should be able to: 1. Recognize the signs and symptoms associated with dysphagia and chronic pulmonary aspiration. 2. Know the conditions predisposing to dysphagia and aspiration in children. 3. Understand the tests that should be used to diagnose dysphagia and chronic pulmonary aspiration. 4. Know when and to what subspecialist(s) to refer the patient who has dysphagia and chronic aspiration. 5. Know the methods available to treat dysphagia and chronic aspiration. 6. Know how to recognize and treat aspiration pneumonia in infants and children. “Dysphagia, defined as difficult or improper swallowing of oral solids, liquids, or both, can lead to aspiration, the inhalation of foreign material into the lower airway. This can produce significant respiratory morbidity and mortality in children.” (1) Dysphagia is described as being oropharyngeal when transfer of the food bolus from the mouth to the esophagus is impaired. The striated muscles of the mouth, pharynx, and upper esophageal sphincter are affected in oropharyngeal dysphagia. Esophageal dysphagia occurs if there is difficulty transporting the food bolus down the esophagus to the stomach. (2) Aspiration may occur in children who have problems with dysphagia. Aspiration can be either acute or chronic and recurrent. Aspiration can lead to pulmonary problems such as recurrent wheezing, recurrent pneumonias, and the development of severe impairment of …

Aortopexy for the management of paediatric tracheomalacia - the Alder Hey experience.

Whilst aortopexy is an accepted and established procedure, there remains considerable heterogeneity within the literature, with inconsistencies in both the approach taken and the technique employed. Furthermore, limited data exist on both patient selection and long-term outcomes. This study aimed to report the experience of managing severe tracheomalacia by way of aortopexy in a large UK paediatric centre. A retrospective case note review was conducted. Mean follow up was five years. Twenty-five patients underwent aortopexy for severe tracheomalacia caused by external vascular compression. Acute life-threatening events precipitated investigation in 72 per cent of cases. Twenty-one patients initially presented to ENT services for investigation, which comprised upper airway endoscopy and imaging with computed tomography angiography. Post-operatively, the majority of patients demonstrated complete resolution of symptoms and were discharged from all associated services. Only four patients required a tracheostomy. Aortopexy offers an effective method of treating severe tracheomalacia due to vascular compression.

Prevalence and associated factors of anemia among full-term newborn babies at University of Gondar comprehensive specialized hospital, Northwest Ethiopia: a cross-sectional study

BackgroundAnemia in newborn babies causes asymptomatic to an acute life-threatening event. If untreated, it leads to a delay in brain maturation, tissue hypoxia, and stunted growth. In Sub-Saharan Africa, its burden ranges 23–66%. However, in Ethiopia, there is limited information regarding the prevalence and associated factors of newborn anemia. Thus, this study was aimed to assess the prevalence and associated factors of anemia among full-term newborn babies.MethodCross-sectional study was conducted from February 1 to April 30, 2019, among 192 full-term newborn babies. A systematic random sampling technique was employed to select study participants. Socio-demographic characteristics were collected through interviews. Clinical data were collected by reviewing medical records. Cord blood was collected from the clumped cord. Complete blood count was analyzed by using the Sysmex KX-21 N hematology analyzer. SPSS 20 was used to analyze the data. Bivariable and multivariable binary logistic regression were used to identify associated factors. P-value < 0.05 was considered a statistically significant association.ResultThe median (interquartile range) of cord hemoglobin was 15 g/dL (13.93–16.2 g/dL). From the total, 25% (95% CI: 18.9, 31.1%) of the newborns were anemic. From anemic 89.5, 6.3, and 4.2% were mild, moderate and severe anemia type, respectively. Maternal vegetable consumption habit (AOR = 0.34, 95%CI: 0.17, 0.69) were significant associated with anemia.ConclusionAnemia among newborn babies found to be a moderate public health problem. Based on the finding early screening of newborn anemia may reduce further complications.

Tracheomalacia and Tracheobronchomalacia in Pediatrics: An Overview of Evaluation, Medical Management, and Surgical Treatment.

Tracheobronchomalacia (TBM) refers to airway collapse due to typically excessive posterior membrane intrusion and often associated with anterior cartilage compression. TBM occurs either in isolation or in association with other congenital or acquired conditions. Patients with TM typically present non-specific respiratory symptoms, ranging from noisy breathing with a typical barking cough to respiratory distress episodes to acute life-threatening events and recurrent and/or prolonged respiratory infections. There are no definitive standardized guidelines for the evaluation, diagnosis, and treatment of TBM; therefore, patients may be initially misdiagnosed and incorrectly treated. Although milder cases of TBM may become asymptomatic as the diameter of the airway enlarges with the child, in cases of severe TBM, more aggressive management is warranted. This article is an overview of the clinical presentation, evaluation, diagnosis, medical management, and surgical treatment options in pediatric tracheomalacia.

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SAT-314 Systematic Review and Recommendations from the Pediatric Continuous Renal Replacement Therapy (PCRRT) Workgroup for Management of Hyperammonemia in Children

Accumulation of ammonia in the blood may result in an acute life-threatening event in children. Patients typically present with lethargy, poor feeding, and hypotonia; if not managed efficiently, patients can develop seizures, coma, and eventually die. Management of hyperammonemia is difficult in children given the non-specific symptoms, age specific etiologies, and lack of consensus in the treatment plan. We systematically reviewed published literature to provide expert consensus panel recommendations for medical management and renal replacement therapy (RRT) in pediatric patients with hyperammonemia.

DOZ047.100: Impact of fundoplication on pH-MII tracings in pediatric patients with esophageal atresia

Abstract Introduction Gastroesophageal reflux disease (GERD) is the most common long-term complication in esophageal atresia (EA) patients. Fundoplication in EA is controversial but may be an option in those with maximum GER therapy failure, acute life-threatening event, failure to thrive, persistent esophagitis, and recurrent anastomotic stenosis. Aim The aim of this study was to compare GERD characteristics according pH-MII parameters in EA patients with and without fundoplication. Materials and Methods Retrospective review of pH-MII tracings performed at a Gastroenterology Unit between 2011 and 2018 was carried out. Inclusion criteria were children under 18 years with history of EA, with and without fundoplication, with both pH-MII and endoscopy performed, histology of esophageal biopsies, and off antireflux medications at the moment of examination. GER therapy failure was the indication for surgery. The total number of reflux episodes (acid, nonacidic), bolus and acid clearance time (ACT), and baseline values in distal channels (5–6) were evaluated. Group 1 (G1): patients with EA and fundoplication. Group 2 (G2): patients with EA without fundoplication. T-test was performed to compare results between G1 and G2. Results Fifteen tracings in EA patients were evaluated. Out of 15, 8 (53%) underwent fundoplication (G1), median age 7.4 years, 87.5% EA type C, 12.5% type A (long gap). Esophagitis was observed in 100% postfundoplication: 2 macroscopic, 1 eosinophilic, 5 microscopic esophagitis. Out of 15, 7 (47%) were EA without fundoplication (G2), median age 3.25 years, 57% EA type C, 43% type A–B. Esophagitis was observed in 85% in G2, all of them microscopic. No statistical differences were observed in pH-MII parameters between both groups. Number of refluxes, ACT, and distal channels (ch-6) were pathological in both groups. Nevertheless better acid clearance and more mucosal damage were observed in G1. Conclusion In this pediatric series of EA patients, pH-MII data show persistence of GERD even postfundoplication. This observation could be due to severe esophageal dismotility. Even asymptomatic EA patients should undergo monitoring of GER with pH-MII and endoscopy.

Predictors of the Performance of Early Antireflux Surgery in Esophageal Atresia

To identify predictors of and factors associated with the performance of antireflux surgery during the first year of life in children born with esophageal atresia. All patients were included in a French registry for esophageal atresia. All 38 multidisciplinary French centers completed questionnaires about perinatal characteristics and one-year outcome for children born with esophageal atresia. Of 835 infants with esophageal atresia born in France from 2010 to 2014, 682 patients, excluding those with long-gap esophageal atresia, were included. Three patients had type I, 669 had type III, and 10 had type IV esophageal atresia. Fifty-three children (7.8%) received fundoplication during the first year of life. The median age at the time of the end-to-end esophageal anastomosis was 1.1day (range 0-15). Multivariate analysis identified three perioperative factors that predicted the need for early antireflux surgery: anastomotic tension (P=.004), associated malformations (P=.019), and low birth weight (P=.018). Six other factors, measured during the first year of life, were associated with the need for antireflux surgery: gastroesophageal reflux (P<.001), anastomotic stricture (P<.001), gastrostomy (P<.001), acute life-threatening event (P=.002), respiratory complications (P = .045), and poor nutritional status (P<.001). Gastroesophageal reflux disease, low birth weight, poor nutrition, and surgical anastomosis difficulties predicted the performance of antireflux surgery in the first year of life in infants with esophageal atresia.

Follow-up of fatty acid β-oxidation disorders in expanded newborn screening era.

Fatty acid β-oxidation (FAO) disorders have a wide variety of symptoms, not usually evident between episodes of acute decompensations. Cardiac involvement is frequent, and severe ventricular arrhythmias are suspected of causing sudden death. Expanded newborn screening (ENS) for these disorders, hopefully, contribute to prevent potentially acute life-threatening events. In order to characterize acute decompensations observed in FAO-deficient cases identified by ENS, a retrospective analysis was performed, covering a period of 9years. Demographic data, number/type of acute decompensations, treatment, and follow-up were considered. Eighty-three clinical charts, including 66 medium-chain acyl-CoA dehydrogenase deficiency (MCADD), 5 carnitine-uptake deficiency (CUD), 3 carnitine palmitoyltransferase I and II (CPT I/II) deficiency, 5 very long-chain acyl-CoA dehydrogenase deficiency (VLCADD), and 4 multiple acyl-CoA dehydrogenase deficiency (MADD) cases were reviewed. Nineteen patients had acute decompensations (1 CPT I, 1 CPT II, 3 MADD, 14 MCADD). Six patients developed symptoms previously to ENS diagnosis. Severe clinical manifestations included multiple organ failure, liver failure, heart failure, and sudden death. Long-chain FAO disorders had the highest number of decompensations per patient.Conclusion: Despite earlier diagnosis by ENS, sudden deaths were not avoided and acute decompensations with severe clinical manifestations still occur as well. What is Known: • Severe ventricular arrhythmias are suspected to cause unexpected death in FAO disorders. • Neonatal screening intends to reduce the incidence of severe metabolic crisis and death. What is New: • Acute severe decompensations occurred in FAO disorders diagnosed through neonatal screening. • Sudden deaths were not avoided by starting treatment precociously.

Strengthening the Chain of Survival: Cardiopulmonary Resuscitation Workshop for Caregivers of Children at Risk.

Parents and caregivers should receive training regarding pediatric cardiopulmonary resuscitation (CPR) because this knowledge improves survival. We conducted a study as part of a Patient Safety Project to improve caregivers' CPR knowledge and skills. We also aimed to improve the quality of patient care. We performed a prospective, longitudinal study in 2013-2014 in a pediatric hospital. We enrolled the caregivers of all patients admitted with a diagnosis of an acute life-threatening event, apnea, or choking. We provided a 45-minute CPR workshop for parents at discharge and evaluated the results using a test before, immediately after, and at 1 and 3 months after the workshop. Participants also completed an evaluation survey about the CPR workshop. We admitted 62 patients [median age, 1 mo (0.5-2 mo)]. We provided 62 pediatric CPR workshops to 106 enrolled relatives. The median score was 5 (CI, 3-6) out of 10 at baseline, which increased to 8 (CI, 7-10) immediately after the workshop (P < 0.01). After 1 and 3 months, the median score was 8 (CI, 6-9; P < 0.01). The severity of the acute life-threatening event episode correlated with a better score (P = 0.02). The utility of the workshop scored 9.9 out of 10. This CPR workshop significantly increased CPR knowledge and confidence, and this was maintained up to 3 months post-training. Caregiver satisfaction was high.

Preterm Infant with Congenital Tracheal Diverticulum in the Presence of Esophageal Atresia and Tracheoesophageal Fistula

A 32+4-week-preterm neonate was operated on day 1 for esophageal atresia with tracheoesophageal fistula with a tight primary anastomosis and closure of a tracheoesophageal fistula. Postoperatively, he needed ventilation for 6 days. Post-extubation, he needed continuous positive airway pressure support for increased work of breathing, increasing oxygen requirement, and respiratory acidosis when respiratory support was weaned. Further, during the post-operative period, he had right hemidiaphragmatic paresis and acute lifethreatening events requiring manual high-pressure, non-invasive positive pressure ventilation resuscitation. These complications were considered, and a computed tomography assisted by three-dimensional reconstruction was performed. This revealed a congenital tracheal diverticulum and severe tracheomalacia which was confirmed with microlaryngoscopy and bronchoscopy. The presentation and the diagnostic dilemma surrounding this rare diagnosis are discussed in this case report.

The Role of Thrombolytic Therapy for Patients with a Submassive Pulmonary Embolism.

A pulmonary embolism (PE) is an acute life-threatening respiratory event that results in upwards of 200,000 deaths per year in the United States. While anticoagulation is currently the standard of treatment for PEs, there is increasing evidence to suggest that in certain cases anticoagulation in combination with thrombolytic therapy may improve patient outcomes and reduce mortality. This article aims to compare the effects of combined intervention with thrombolytic therapy and anticoagulation to the effects of anticoagulation alone in patients with submassive PEs in terms of various outcome measures, including but not limited to: mortality, hemodynamic status, length of hospital stay, and safety. The methodology consisted of the critical appraisal of the primary literature articles pertaining to intervention with thrombolytic agents in cases of a submassive or intermediate risk PE, including a discussion of each study’s strengths and limitations. Ultimately, this review found that the use of thrombolytic agents in conjunction with anticoagulants has been associated with decreased hemodynamic decompensation and decreased length of hospital stay, with no change in mortality outcomes, at a cost of increased rate of bleeding and stroke. The use of thrombolytic agents with anticoagulants may be warranted in a specific subset of patients, but clinicians should consider the potential benefits and harms of this intervention.

Cardiac-disease-induced PTSD and Fear of illness progression: Capturing the unique nature of disease-related PTSD.

According to Edmondson's Enduring Somatic Threat (EST) Model of PTSD Due to Acute Life-Threatening Medical Events, the nature of PTSD in the context of illness may differ from the nature of "traditional" PTSD in that it includes future-oriented alongside past-related intrusive thoughts. Yet almost no empirical studies to date have assessed the putative future-oriented quality of cardiac-disease-induced PTSD (CDI-PTSD). In the current study, we assessed the hypothesized associations between CDI-PTSD and fear of illness progression (FoP) - a novel theoretical conceptualization of patients' future-related anxieties. We hypothesized that FoP would be positively associated with CDI-PTSD, and especially with its specific items of intrusive thoughts. Patients (N = 112) were interviewed three months post-hospitalization for an acute coronary event via use of the PSS-SR-5 (to assess PTSD symptomatology), the FoP-Q-SF (to assess fear of illness progression), and the HADS (to assess anxiety and depression levels). Results indicated a strong positive association between CDI-PTSD and FoP, even when controlling for anxiety and depression. As hypothesized, the concepts of CDI-PTSD and fear of illness progression were strongly associated both at the level of the clusters as well as at the level of the specific items. The current study provides an initial empirical validation of the EST Model, especially regarding the future-oriented nature of PTSD resulting from acute cardiovascular disease.

An Interventionalist's Guide to Hemoptysis in Cystic Fibrosis.

Massive hemoptysis occurs in a minority of patients with cystic fibrosis, with an annual incidence of 1%. Although rare, massive hemoptysis can be a severe and potentially fatal complication of this disease. Beyond the acute life-threatening event, hemoptysis in patients with cystic fibrosis has been associated with faster decline in lung function, accelerated need for lung transplant, and increased mortality. The bronchial arteries are the culprit vessels in over 90% of cases of hemoptysis. This normally quiescent vascular system undergoes remarkable hypertrophy, collateralization, and angiogenesis before the onset of hemoptysis, introducing numerous pitfalls for the interventionalist. However, in experienced hands, bronchial artery embolization is a safe and potentially lifesaving therapy. Preprocedural noninvasive imaging, specifically computed tomographic angiography, has been repeatedly validated for helping to localize the likely site of bleeding, characterizing pertinent arterial anatomy, and promoting efficient and effective intervention; it has been recommended for all stable patients with hemoptysis. Success in the angiographic suite requires a thorough understanding of normal and variant bronchial arterial anatomy, appropriate patient selection, and a meticulous embolization technique. A meticulous approach to imaging and intervention, conscientious of both visualized and nonvisualized collateral pathways and nontarget vessels, can minimize potentially devastating complications. This review summarizes the current literature, modern procedural techniques, and emerging controversies, serving to guide an evolving approach to management of patients with cystic fibrosis and hemoptysis. ©RSNA, 2018.