Acute pericarditis in childhood: a 10-year experience

Pericardial effusion in children at tertiary national referral hospital, Addis Ababa, Ethiopia: a 7-year institution based review

BACKGROUND

Pericardial effusion (PE) is a rare yet an important cause of child mortality due to collection of excess fluid in pericardial space. The study aimed to describe the PE profile in the national cardiac referral hospital, Addis Ababa, Ethiopia.

METHODS

The study employed cross-sectional study design for a 7-year review of childhood PE in Tikur Anbessa Specialized Hospital. Descriptive and analytic statistics were applied.

RESULTS

There were 17,386 pediatric emergency/ER admissions during the study period, and PE contributed to 0.47% of ER admissions. From 71 included subjects, 59% (42) were males with mean age of 7.8 ± 3.3 years. Cough or shortness of breath,73.2% (52) and fever or fast breathing, 26.7% (19), were the common presenting symptoms. The median duration of an illness before presentation was 14days (IQR: 8-20). The etiologies for pericardial effusion were infective (culture positive-23.9%, culture negative-43.6%, tuberculous-4.2%), hypothyroidism (4.2%), inflammatory (12.7%), malignancy (7%) or secondary to chronic kidney disease (1. 4%). Staphylococcus aureus was the most common isolated bacteria on blood culture, 12.7% (9) while the rest were pseudomonas, 7% (5) and klebsiella, 4.2% (3). Mild, moderate and severe pericardial effusion was documented in 22.5% (16), 46.5% (33), and 31% (22) of study subjects, respectively. Pericardial tamponade was reported in 50.7% (36) of subjects. Pericardial drainage procedure (pericardiocentesis, window or pericardiotomy) was performed for 52.1% (37) PE cases. The case fatality of PE was 12.7% (9). Pericardial drainage procedure was inversely related to mortality, adjusted odds ratio 0.11(0.01-0.99), p 0.049).

CONCLUSION

PE contributed to 0.47% of ER admissions. The commonest PE presentation was respiratory symptoms of around two weeks duration. Purulent pericarditis of staphylococcal etiology was the commonest cause of PE and the case fatality rate was 12.7%. Pericardial drainage procedures contributed to reduction in mortality. All PE cases should be assessed for pericardial drainage procedure to avoid mortality.

Management of acute pericarditis

PURPOSE OF REVIEW

Provide an update on current management and most recent evidence in the treatment of pediatric pericarditis.

RECENT FINDINGS

While treatment of acute pericarditis has not significantly changed over the last decade, management of recurrent acute pericarditis, with increased attention to autoinflammation as a causal mechanism, has evolved substantially. This includes clinical trial evidence that newer medications targeting interleukin-1 receptors are effective in recurrent forms of pericarditis. In addition, advanced imaging utilizing cardiac magnetic resonance has emerged as a particularly effective way to detect ongoing pericardial inflammation in support of more difficult-to-treat patients.

SUMMARY

Recent advances in acute and recurrent pericarditis management have allowed for a more tailored approach to the individual patient. Yet, unresolved questions require further research.

Complicated Acute Pericarditis and Peripheral Venous Catheter-Related Bloodstream Infection Caused by Methicillin-Resistant Staphylococcus aureus after Influenza B Virus Infection: A Case Report

Background

In this study, we report the case of a 14-month-old female patient transferred from another hospital to our hospital with a 9-day history of fever and worsening dyspnea. Case Report. The patient tested positive for influenza type B virus 7 days before being transferred to our hospital but was never treated. The physical examination performed at presentation revealed redness and swelling of the skin at the site of the peripheral venous catheter insertion performed at the previous hospital. Her electrocardiogram revealed ST segment elevations in leads II, III, aVF, and V2-V6. An emergent transthoracic echocardiogram revealed pericardial effusion. As ventricular dysfunction due to pericardial effusion was not present, pericardiocentesis was not performed. Furthermore, blood culture revealed methicillin-resistant Staphylococcus aureus (MRSA). Thus, a diagnosis of acute pericarditis complicated with sepsis and peripheral venous catheter-related bloodstream infection (PVC-BSI) due to MRSA was made. Frequent bedside ultrasound examinations were performed to evaluate the outcomes of the treatment. After administering vancomycin, aspirin, and colchicine, the patient's general condition stabilized.

Conclusions

In children, it is crucial to identify the causative organism and provide appropriate targeted therapy to prevent worsening of the condition and mortality due to acute pericarditis. Moreover, it is important to carefully monitor the clinical course for the progression of acute pericarditis to cardiac tamponade and evaluate the treatment outcomes.

Pediatric Pericarditis: Update

PURPOSE OF REVIEW

While there have now been a variety of large reviews on adult pericarditis, this detailed review specifically focuses on the epidemiology, clinical presentation, diagnosis, and management of pediatric pericarditis. We have tried to highlight most pediatric studies conducted on this topic, with special inclusion of important adult studies that have shaped our understanding of and management for acute and recurrent pericarditis.

RECENT FINDINGS

We find that the etiology of pediatric pericarditis differs from adult patients with pericarditis and has evolved over the years. Also, with the current COVID-19 pandemic, it is important for pediatric clinicians to be aware of pericardial involvement both due to the infection and from vaccination. Oftentimes, pericarditis maybe the only cardiac involvement in children with COVID-19, and so caregivers should maintain a high index of suspicion when they encounter children with pericarditis.  Large-scale contemporary epidemiological data regarding incidence and prevalence of both acute and recurrent pericarditis is lacking in pediatrics, and future studies should focus on highlighting this important research gap. Most of the current management strategies for pediatric pericarditis are from experiences gathered from adult data. Pediatric multicenter trials are warranted to understand the best management strategy for those with acute and recurrent pericarditis.

CASE VIGNETTE

A 6-year-old child with a past history of pericarditis almost 2 months ago comes in with a 2-day history of chest pain and fever. Per mother, he stopped his steroids about 2 weeks ago, and for the last 2 days has had a temperature of 102F and has been complaining of sharp mid-sternal chest pain that gets worse when he lies down and is relieved when he sits up and leans forward. On examination, he is tachycardic (heart rate 160 bpm), with normal blood pressure for age. He appears to be in pain (5/10), and on auscultation has a pericardial friction rub. His lab studies are notable for elevated white blood cell count and inflammatory markers (CRP and ESR). His electrocardiogram reveals sinus tachycardia and diffuse ST-elevation in all precordial leads. His echocardiogram demonstrates normal biventricular function and a trace pericardial effusion. His cardiac MRI confirms recurrent pericarditis. He is started on indomethacin and colchicine. He has complete resolution of his symptoms by day 3 of admission and is discharged with close follow-up.

The Epidemiology and Outcome of Pericardial Effusion in Hospitalized Children: A National Database Analysis

OBJECTIVES

To describe the epidemiology of pericardial effusion in hospitalized children and evaluate risk factors associated with the drainage of pericardial effusion and hospital mortality.

STUDY DESIGN

A retrospective study of a national pediatric discharge database.

RESULTS

We analyzed hospitalized pediatric patients from the neonatal age through 20 years in the Kids' Inpatient Database 2016, extracting the cases of pericardial effusion. Of the 6 266 285 discharged patients recorded, 6417 (0.1%) were diagnosed with pericardial effusion, with the highest prevalence of 2153 patients in teens (13-20 years of age). Pericardial effusion was drained in 792 (12.3%), and the adjusted risk of pericardial drainage was statistically low with rheumatologic diagnosis (OR, 0.485; 95% CI, 0.358-0.657, P < .001). The overall mortality in children with pericardial effusion was 6.8% and 10.9% of those who required pericardial effusion drainage (P < .001). The adjusted risk of mortality was statistically high with solid organ tumor (OR, 1.538; 95% CI, 1.056-2.239, P = .025) and pericardial drainage (OR, 1.430; 95% CI, 1.067-1.915, P = .017) and low in all other age groups compared with neonates, those with cardiac structural diagnosis (OR, 0.322; 95% CI, 0.212-0.489, P < .001), and those with rheumatologic diagnosis (OR, 0.531; 95% CI, 0.334-0.846, P = .008).

CONCLUSION

The risk of mortality in hospitalized children with pericardial effusion was higher in younger children with solid organ tumors and those who required pericardial effusion drainage. In contrast, it was lower in older children with cardiac or rheumatologic diagnoses.

Pericardial effusion among children: Retrospective analysis of the etiology and short-term outcome in a referral center in the south of Iran

Background and Aims

We reinvestigated the causes, symptoms, and management of childhood pericardial effusion (PE) and its gradual changes during recent years in a referral pediatric cardiology center in the south of Iran.

Methods

We retrospectively analyzed the profile of PE patients who were under 18 years old from 2015 to 2020. The patient's demographic, clinical, and paraclinical information was extracted and analyzed using SPSS software.

Result

In general, 150 out of 63,736 admitted patients (0.23% of the total pediatric admissions) were diagnosed with PE (male/female 1:1.17). The median age was 3.25 years (range:\ 2 days to 18 years; interquartile range: 9.5), and 50% of them were under 3 years of age. 32.6% had moderate to severe PE. Most patients presented with acute symptoms (68%) and respiratory problems, as the most common symptoms (30.6%). Tamponade signs were presented in 2% (n = 3) of the patients, and 80.7% (n = 121) were in a stable hemodynamic condition. In total, renal failure (22%) and parapneumonic effusion were the leading etiologies. Viral (7%) and bacterial (5%) pericarditis were the seventh and eighth causes; however, in severe cases, renal failure (22%) and bacterial pericarditis (14%) were dominant. In total, 14.1% (n = 21) of the patients needed pericardiocentesis that increased to 78.3% (n = 18) in severe cases. Only 6% had persistent PE for more than 3 months.

Conclusion

Childhood PE is mostly a result of renal failure and noninfectious causes. True pericarditis cases are not common, except in severe cases. It is more common in less than 3-year-old patients, and chronicity is rare. Severe cases had a high chance of pericardiocentesis, but other cases were mainly managed by treatment of the underlying causes.

Current pharmacotherapy management of children and adults with pericarditis: Prospectus for improved outcomes

Pericarditis is the most common inflammatory pericardial disease in both children and adults. Since the 2015 European Society of Cardiology Guidelines for the diagnosis and management of pericardial disease were published, there have been significant updates to management. Pharmacotherapy has been historically reserved for idiopathic pericarditis (IP). However, there has been increasing use of pharmacotherapies, such as anti-inflammatory therapies, colchicine, and immunotherapies for other causes of pericarditis, such as post-cardiac injury syndromes (PCIS). Nevertheless, the quality of data varies depending on PCIS or idiopathic etiologies, as well as the adult and pediatric population. High-dose anti-inflammatory therapies should be used to manage symptoms associated with either etiology of pericarditis in both adults and children, but do not ameliorate the inflammatory disease process. Choice of anti-inflammatory should be guided by drug-drug/disease interactions, cost, tolerability, patient age, and should be tapered accordingly over several weeks to months. Colchicine should be added as adjuvant therapy to anti-inflammatory therapies in adults and children with IP, as it has been shown to lower the risk of recurrence, reduce pericarditis symptoms, and improve morbidity. Colchicine is also reasonable to add to adults and children with pericarditis secondary to PCIS. Systemic glucocorticoids increase risk of recurrence in adults and children with IP and are reserved for second-line treatment in acute and recurrent IP; they are generally avoided in PCIS. Immunotherapies are regarded as third-line for recurrent IP in adults and children. Limited evidence exists to support their use in patients with pericarditis from PCIS. Pharmacovigilance strategies, such as C-reactive protein and adverse drug event monitoring, are also important toward balancing efficacy and safety of the various strategies used to manage pericarditis in adults and children.

Clinico-Etiological Profile of Children with Pericardial Effusion in a Tertiary Care Hospital in Eastern India

INTRODUCTION

Pericardial effusion may be due to various causes. With the changing scenario of newer generation antibiotics and robust immunization program our aim is to identify the change, if any, in etiology and disease menifestations.

METHODOLOGY

This is a hospital-based uni-center prospective study with a population of 30 children for a period of 1½ year. Clinico-epidemiological features, investigations, complications and short-term outcome were assessed.

RESULTS

We found 13 (43.33%) patients having mild, 11 (36.67%) had moderate and 6 (20%) had severe pericardial effusion. Cardiac tamponade was present in six cases. Among the study population 9 (30%) patients were diagnosed as having pyogenic pericardial effusion and 8 (26.67%) had tubercular effusion. The predominant symptoms of pericardial effusion in our children were fever and tachycardia (83.33%).Other symptoms at presentation were tachycardia (76.67%), cough (63.33%), chest pain (50%), orthopnea (43.33%) and skin rash (16.67%). Pericardiocentesis was done in 14 cases (46.67%) of which 4 patients (13.33%) required pig tail catheterization.

DISCUSSION

Infectious etiology still remains the primary cause of pericardial effusion in our country. The presenting clinical signs are very much nonspecific and also not so prominent unless hemodynamic compromisation occurs.

CONCLUSION

This study showed that bacterial and tubercular pericardial effusions are still two most prevalent etiological diagnosis in this part of country. Early diagnosis and treatment has good outcome.

Purulent pericardial effusion in children: Experience from a tertiary care center in North India

Background

Purulent pericarditis, if not recognized and managed timely, it can lead to significant morbidity and mortality. There are no guidelines for the management of purulent pericardial effusion in pediatric patients.

Aim

The study describes our experience with the management of 22 patients admitted with a primary diagnosis of purulent pericardial effusion seen over a 7-year period.

Materials and Methods

Hospital records of 22 children admitted to the pediatric intensive care unit with purulent pericardial effusion during January 2012-December 2018 were retrospectively analyzed.

Results

The mean age of presentation was 4.6 years. The most common presentation was fever. History of antecedent trauma was present in 27.27% of patients. Empyema was the most common associated infection. Staphylococcus aureus was the most commonly isolated organism. Out of 22, pericardial drainage was done in 13 patients (59%). Only one of these patients required pericardiectomy later on. Six (27.2%) patients responded to antibiotics alone. Three (13.6%) patients died before any intervention could be planned.

Conclusion

Echocardiography-guided percutaneous pericardiocentesis and pigtail catheter placement are a safe and effective treatment for purulent pericardial effusion. When pericardial drainage is not amenable, close monitoring of the size of effusion by serial echocardiography is required. Small residual pericardial effusion may be managed conservatively.

Pediatric oncologic emergencies: Clinical and imaging review for pediatricians

Children with cancer are at increased risk of life-threatening emergencies, either from the cancer itself or related to the cancer treatment. These conditions need to be assessed and treated as early as possible to minimize morbidity and mortality. Cardiothoracic emergencies encompass a variety of pathologies, including pericardial effusion and cardiac tamponade, massive hemoptysis, superior vena cava syndrome, pulmonary embolism, and pneumonia. Abdominal emergencies include bowel obstruction, intussusception, perforation, tumor rupture, intestinal graft-versus-host disease, acute pancreatitis, neutropenic colitis, and obstructive uropathy. Radiology plays a vital role in the diagnosis of these emergencies. We here review the clinical features and imaging in pediatric patients with oncologic emergencies, including a review of recently published studies. Key radiological images are presented to highlight the radiological approach to diagnosis. Pediatricians, pediatric surgeons, and pediatric radiologists need to work together to arrive at the correct diagnosis and to ensure prompt and appropriate treatment strategies.

Infectious and Noninfectious Acute Pericarditis in Children: An 11-Year Experience

Objective

The study was undertaken to determine the etiology, review management, and outcome in children diagnosed with acute pericarditis during 11 years at tertiary pediatric institution.

Methods

Retrospective chart review of children diagnosed between 2004 and 2014. Patients with postsurgical pericardial effusions were excluded.

Results

Thirty-two children were identified (median age 10yr/11mo). Pericardiocentesis was performed in 24/32 (75%) patients. The most common cause of pericarditis was infection in 11/32 (34%), followed by inflammatory disorders in 9 (28%). Purulent pericarditis occurred in 5 children including 4 due to Staphylococcus aureus: 2 were methicillin resistant (MRSA). All patients with purulent pericarditis had concomitant infection including soft tissue, bone, or lung infection; all had pericardial drain placement and 2 required pericardiotomy and mediastinal exploration. Other infections were due to Histoplasma capsulatum (2), Mycoplasma pneumoniae (2), Influenza A (1), and Enterovirus (1). Pericarditis/pericardial effusion was the initial presentation in 4 children with systemic lupus erythematosus including one who presented with tamponade and in 2 children who were diagnosed with systemic onset juvenile inflammatory arthritis. Tumors were diagnosed in 2 patients. Five children had recurrent pericarditis. Systemic antibiotics were used in 21/32 (66%) and prednisone was used in 11/32 (34%) patients.

Conclusion

Infections remain an important cause of pericarditis in children. Purulent pericarditis is most commonly caused by Staphylococcus aureus and is associated with significant morbidity, need of surgical intervention, and prolonged antibiotic therapy. Echocardiography-guided thoracocentesis remains the preferred diagnostic and therapeutic approach. However, pericardiotomy and drainage are needed when appropriate clinical response is not achieved with percutaneous drainage.

Group A Streptococcal Pericarditis in a Four-Month-Old Infant: Case report

Purulent pericarditis is uncommon among paediatric patients and cases caused by group A Streptococcus (GAS) are even rarer. We report a four-month-old female infant who was referred to the Royal Hospital, Muscat, Oman, in 2015 with pericardial effusion and cardiac tamponade. She had initially presented to a secondary hospital with a two-week history of fever, a runny nose and shortness of breath. Blood and pericardial fluid cultures confirmed GAS isolates. The infant was treated with a two-week course of antibiotics and made a complete recovery with no echocardiographical evidence of pericardial effusion at a two-month follow-up. To the best of the authors' knowledge, this case constitutes the youngest infant to present with GAS pericarditis. As invasive GAS infections can present in infancy, early recognition and treatment is required.

A Diagnostic Approach to Autoimmune Disorders: Clinical Manifestations: Part 1

Autoimmune disorders are not commonly encountered in a general pediatric practice, but they may mimic many other disorders. Although they occur infrequently, it is always important to pause and consider an autoimmune disorder in the differential diagnosis. A detailed history and careful physical examination play an important role in guiding laboratory evaluation for these disorders. Many autoimmune disorders present with symptoms that involve multiple organ systems. The common symptoms that may make one consider a rheumatic disorder in the differential diagnosis are fever, fatigue, joint pain, rash, ulcers, and muscle weakness. The most common reason for referral to a pediatric rheumatologist is joint pain. A good joint examination may be performed by the use of the pediatric Gait, Arms, Legs, Spine screen, which is a validated screening tool. A small portion of children with fever of unknown origin may have an autoimmune disorder, with a majority of them having an infectious disease. Some patients with undiagnosed rheumatic disorders may present to the emergency. department. The characteristics of historic and clinical examination features of various autoimmune disorders are discussed in this article. [Pediatr Ann. 2016;45(6):e223-e229.].

An Interesting Case of Viral Pericarditis

A previously healthy 14-year-old girl presented to the emergency department with a 3-day history of upper respiratory symptoms and 2 syncopal episodes. She was initially febrile, tachycardic, and tachypneic; the initial electrocardiogram showed diffuse T-wave inversions and right atrial enlargement. There was no pericardial effusion on bedside and formal echocardiography; the latter, however, revealed a hyperechogenic pericardium. A viral swab was positive for influenza B. Treatment with intravenous rehydration and ibuprofen was started with good response. The patient went home 24 hours later with the diagnosis of mild pericarditis and syncope likely secondary to dehydration impaired diastolic filling.The incidence of acute pericarditis in previously healthy children is unknown. There are no known case reports of influenza B-associated pericarditis in the pediatric population. There is little high quality evidence to guide the diagnosis and management of pericarditis in children. However, limited data suggest that the typically described presentation of chest pain, pericardial rub, pericardial effusion, and electrocardiogram changes occurs in children. The pediatric population seems to respond well to nonsteroidal anti-inflammatory drugs.

Unusual Presentation of Pre-T Cell Acute Lymphoblastic Leukemia: Massive Pericardial Effusion Only

Despite the infectious and connective tissue diseases are most encountered, etiological factors, pericardial effusions, can also rarely emerge because of malign disease in childhood and it often develops during the course of chemotherapy and radiotherapy. Unfortunately, pericardial involvement is one of the frequently encountered symptoms of pediatric malignancies. Herein, we present a rare case who was admitted with pericardial effusion and whose disease was diagnosed as pre-T cell acute lymphoblastic leukemia without peripheral blood involvement.

Pneumonia and purulent pericarditis caused by Streptococcus pneumoniae: an uncommon association in the antibiotic era

Bacterial pericarditis in children has become a rare entity in the modern antibiotic era. The most common pathogen is Staphylococcus aureus, being Streptococcus pneumoniae an exceptional cause. We present 2 children, who were diagnosed of pneumonia complicated with a pleural effusion that developed a purulent pericarditis with signs of cardiac tamponade. One of them had received 4 doses of the 7-valent conjugated pneumococcal vaccine. Systemic antibiotics and pericardial and pleural drainages were used. Pneumococcal antigens were positive in pleural and pericardial fluids in both cases, and S. pneumoniae was isolated from pleural effusion in one of them. Both children fully recovered, and none of them developed constrictive pericarditis, although 1 case presented a transient secondary left ventricular dysfunction. Routine immunization with 10- and 13-valent vaccines including a wider range of serotypes should further decrease the already low incidence.

Primary purulent pericarditis and secondary endocarditis: a case report

Purulent pericarditis is a rare diagnosis to be made. It is exceedingly rare as a primary infection. We describe the case of an 18-month-old boy who presented with primary purulent pericarditis and developed a secondary endocarditis. Current literature on the subject is reviewed and discussed.

Five children with purulent pericarditis and review of the literature

Purulent pericarditis in children is a life-threatening disease that requires early diagnosis and immediate intervention. This cardiac emergency is rarely seen in the western world. However, cases of purulent pericarditis are still being reported in developing countries. We describe our experience with five cases of purulent pericarditis in children seen between 1998 and 2002. Haemophilus influenzae bacteria were isolated in all except one case. With active management, all five children survived.

Streptococcus pneumoniae purulent pericarditis in a neonate

Purulent bacterial pericarditis is an uncommon infection that manifests during childhood, and in the post-antibiotic era Streptococcus pneumoniae is an unusual cause.We report a case of purulent bacterial pericarditis in a neonate caused by Streptococcus pneumoniae serotype 7F. Although cases of bacterial pericarditis caused by Streptococcus pneumoniae as a causative agent have been reported, their combination in a neonate is unique and this is, to our knowledge, the first case of this combination in the newborn period.

A case of acute myopericarditis associated with Mycoplasma pneumoniae infection in a child

Mycoplasma pneumoniae (M. pneumoniae) primarily causes respiratory tract infections in persons aged 5-20 years. Tracheobronchitis and bronchopneumonia are the most commonly recognized clinical symptoms associated with M. pneumoniae infection. Complications of this infection are unusual; in particular, cardiac involvement is very rare and is generally accompanied by pneumonia. Nonrespiratory illness can therefore involve direct invasion by M. pneumoniae or autoimmune mechanisms, as suggested by the frequency of cross reaction between human antigens and M. pneumoniae. Herein, we report a case of severe acute myopericarditis with pneumonia caused by M. pneumoniae in a healthy young child who presented with fever, lethargy, oliguria and dyspnea. She survived with aggressive therapy including clarithromycin, intravenous immunoglobulin, inotropics, and diuretics. The patient was discharged on the 19th day after admission and followed up 1 month thereafter at the outpatient clinic without sequelae.

Bacterial pericarditis caused by Lactobacillus iners in an infant

We report the case of a 6-month-old male infant with bacterial pericarditis due to Lactobacillus iners. Although the culture of pericardial fluid was negative, L. iners was identified by 16S rRNA gene amplification by polymerase chain reaction and a subsequent sequence analysis. This weakly pathogenic bacterium could develop a severe infection in infants.

A 10-month-old with Lemierre syndrome complicated by purulent pericarditis

Lemierre syndrome is a potentially life-threatening septic thrombophlebitis associated with a neck infection. We present a case of a 10-month-old female infant with Lemierre syndrome complicated by thrombotic strokes and purulent pericarditis. A healthy 10-month-old female infant presented to the pediatric emergency department of our tertiary care center complaining of 5 days of fever to 105°F and 1 day of neck stiffness and decreased oral intake. In the pediatric emergency department, she developed septic shock, requiring vasopressor support, endotracheal intubation, and broad-spectrum antibiotics. A computed tomographic scan demonstrated a neck abscess associated with a right internal jugular thrombus and septic emboli to her lungs and brain. This constellation was consistent with Lemierre syndrome. Further studies demonstrated the thrombus extended into her left ventricular outflow tract. She was emergently taken to the operating room for incision and drainage of her neck abscess, started on anticoagulation with heparin, and eventually transitioned to enoxaparin. Her hospital course was complicated by a middle cerebral artery distribution infarction and subsequent hemorrhagic conversion with generalized tonic clonic seizures managed by levetiracetam. Ten days into her hospital stay, she developed pericardial tamponade, and cardiac surgery performed a pericardial window for loculated, purulent pericardial effusion. Initial blood cultures were positive for methicillin-sensitive Staphylococcus aureus, and the patient was treated with 6 weeks of nafcillin. She has recovered with minimal permanent sequelae. This is one of the youngest cases of Lemierre syndrome documented. To our knowledge, it is also the first case complicated by purulent pericarditis reported in the literature.

Rheumatologic emergencies in newborns, children, and adolescents

This article presents five clinical scenarios in which the initial manifestations of pediatric rheumatic diseases constitute life-threatening medical emergencies. It is intended as a problem-oriented guide for pediatricians to assist in the recognition of rheumatologic differentials in children presenting with critical illness and provides an approach to their initial investigation and management.

Children presenting with acute pericarditis to the emergency department

OBJECTIVE

The objective of the study was to evaluate the clinical features and the outcome of children who presented to the emergency department and were ultimately diagnosed with pericarditis.

METHODS

A retrospective chart review of all children diagnosed with acute pericarditis from January 2000 through March 2007 was conducted.

RESULTS

There were 94 children with pericarditis as the sole or one of the discharge diagnoses: 34 with postsurgical pericarditis and 38 with pericarditis as a component of a generalized illness were not examined further. Of the 22 children included in the study, the mean age was 12.3 (SD, 2.7) years, and 80% were males. Chest pain was present in 96%, and fever was present in 56%. All children had electrocardiographic changes comprising ST and T-wave abnormalities. Initial chest radiographs were reported as normal in 40%; although 82% (n = 18) had a pericardial effusion on echocardiography, 7 (32%) required pericardiocentesis. The etiology was considered idiopathic in 68% (n = 15). All children improved on treatment with nonsteroidal anti-inflammatory drugs. Eight children (36%) had recurrent pericarditis, of whom 2 had multiple recurrences.

CONCLUSIONS

Children presenting with chest pain require further investigation if electrocardiographs show any abnormalities. Children presenting with pericarditis require follow-up and caution about recurrence.

Constrictive pericarditis secondary to infection with Mycoplasma pneumoniae

Pericardial effusions can be insidious, variable in presentation, and may result from a wide variety of causes. We report here a rare case of pericardial effusion in a pediatric patient secondary to infection with Mycoplasma pneumoniae that progressed to cardiac tamponade and constrictive pericarditis. The differential diagnosis of pericardial effusion is reviewed as well as current treatments for pericardial effusions and constrictive pericarditis.

Approach to the child with chest pain

Children frequently present to a pediatric office or emergency department with the complaint of chest pain. Between 0.3% and 0.6% of visits to a pediatric emergency department are for chest pain. Unlike adult patients with chest pain, most studies have shown that children with chest pain rarely have serious organic pathology. Infrequently, a child with chest pain will present with significant distress and require immediate resuscitation. Most children with chest pain are not in extremis, and for many, the pain is not acute in nature.

Chest pain and chest wall deformity

Chest pain and chest wall deformities are common in children. Although most children with chest pain have a benign diagnosis, some have a serious etiology for pain, so the complaint must be addressed carefully. Unfortunately, there are few prospective studies to evaluate this complaint in children. Serious causes for chest pain are rare, making it difficult to develop clear guidelines for evaluation and management. The child who appears well, has a normal physical examination, and lacks worrisome history deserves reassurance and careful follow-up rather than extensive studies. Multicenter studies are needed to better define this important symptom.

Purulent pericarditis: report of 2 cases and review of the literature

Purulent pericarditis, a localized infection within the pericardial space, has become a rare entity in the modern antibiotic era. Although historically a disease of children and young adults, this is no longer the case: the median age at the time of diagnosis has increased by nearly 30 years over the past 6 decades. Despite advances in diagnostic and treatment modalities, purulent pericarditis remains a life-threatening illness. Unfortunately, the diagnosis is made postmortem in more than half the cases. Thus, a high index of clinical suspicion is crucial. We present 2 cases of purulent pericarditis, and provide an updated review of other case series published over the past 60 years.

Etiology, management, and outcome of pediatric pericardial effusions

The objective of this study was to determine the contemporary etiologies, treatment, and outcomes of moderate and large pericardial effusions in pediatric patients. We reviewed pediatric patients with moderate or large effusions diagnosed at Children's Hospital Boston. Effusion size was determined in offline review of echocardiograms. One hundred sixteen patients with moderate or large pericardial effusions were identified. The age range was 1 day to 17.8 years (median 8.6). The size of the pericardial effusions ranged from 0.5 to 4.7 cm (median 2.1). Neoplastic disease was present in 39% of patients, collagen vascular disease in 9%, renal disease in 8%, bacterial infection in 3%, and human immunodeficiency virus (HIV) in 2%; 37% were idiopathic. Pericardial drainage procedures were performed in 47 patients (41%). Of these, 29 (63%) had recurrent effusions leading to repeat drainage in 12 (41%). Pericardial effusions resolved within 3 months in 83% of patients who underwent drainage and in 91% of patients who did not. In summary, pediatric pericardial effusions were rarely caused by bacterial infections in this study population and were more frequently idiopathic or associated with neoplastic disease. Pericardial effusions often reaccumulated after drainage. The majority of both drained and undrained effusions resolved within 3 months.

Staphylococcal purulent pericarditis in a malnourished Gambian child: A case report

We report a case of purulent pericarditis caused by Staphylococcus aureus in a malnourished 17-month-old child. The clinical features, diagnosis especially the usefulness of non-invasive ultrasound as well as immunological and molecular biology studies, management and outcome of this life threatening condition are discussed.

Pericarditis

Pericarditis (inflammation of the pericardium) may be caused by infectious agents, autoimmune disorders, metabolic conditions, or malignancy, or it may be a complication of drug therapy, trauma, cardiac surgery, or smallpox vaccination. Diagnosis, based on clinical findings, electrocardiographic changes, chest radiograph, and ultrasound, may be confirmed as appropriate by pericardiocentesis. Although contemporary imaging technologies, such as computed tomography and magnetic resonance imaging, are useful, echocardiography remains the simplest and most expeditious noninvasive tool to assess inflammatory and infectious diseases of the pericardium. Although contemporary management of pericardial disease remains relatively unchanged, reports of innovative approaches to the management of pericardial effusion include the installation of intrapericardial thrombolytic agents to facilitate drainage of purulent effusions or balloon pericardiotomy for recurrent effusions. Both offer potential alternatives to the surgical pericardial window.

Acute hemorrhagic pericarditis in a child with pneumonia due to Chlamydophila pneumoniae

Chlamydophila pneumoniae is mainly responsible for respiratory tract infections but has also been associated with endocarditis and myocarditis. We report a case of pneumonia in a child with hemorrhagic pericardial effusion with a positive result by a new C. pneumoniae TaqMan PCR, suggesting a pericardial inflammation directly induced by C. pneumoniae. C. pneumoniae should be suspected in patients with community-acquired pneumonia and concurrent pericarditis. Empirical treatment with azithromycin seems feasible.

Eosinophilic pericarditis: a rare complication of idiopathic hypereosinophilic syndrome in a child

We describe an 18-month-old child with idiopathic hypereosinophilic syndrome (IHES) who presented with fever, and cervical lymphadenopathy. Chest X-ray showed marked cardiomegaly, and echocardiogram revealed large pericardial effusion. Other causes of pericarditis were excluded. Despite the initiation of steroid therapy, signs of impending cardiac tamponade developed. Pericardiocentesis yielded bloody fluid with a white blood count of 14,800/mm3, of which 23% were eosinophils. The child recovered after pericardial drainage and prolonged systemic steroid therapy. Eosinophilic pericarditis is a rare but potentially dangerous complication of IHES.

Large pericardial effusions of inflammatory origin in childhood

OBJECTIVES

Our aim was to review the clinical records from children with large pericardial effusions of inflammatory origin presenting to a tertiary referral centre over the last 21 years, with emphasis on their clinical presentation, management and outcome.

BACKGROUND

The common identifiable causes of pericardial effusion in children include prior cardiac surgery, bacterial pericarditis, malignancy, and connective tissue disorders. In a significant number of children, however, despite extensive investigation, it is not possible to identify a clear aetiology. A viral cause is often considered, though rarely confirmed. The clinical course of such large idiopathic pericardial effusions in children has not been extensively reported.

METHODS AND RESULTS

We reviewed retrospectively the records of all patients seen between 1981 and 2001 with large pericardial effusions of inflammatory origin requiring drainage, excluding the effusions related to cardiac surgery or malignancy. We found 31 patients fulfilling our criterions for study. They could be divided into three groups, with 15 patients having no specific identifiable aetiology despite extensive investigation, 12 patients having evidence of bacterial pericarditis, and four with a probable immunologic disorder. Fever was present in only eight patients (53%) in the idiopathic group. All patients in the other groups had fever. Except for fever and the resultant tachycardia, it was not possible to distinguish on clinical grounds, nor on the presence or otherwise of cardiac tamponade, between those with idiopathic aetiology and those with bacterial infection. Of the patients with presumed bacterial pericarditis, five (42%) had both positive blood and pericardial fluid cultures, three (25%) had positive blood cultures, while a further three patients (25%) had only positive pericardial fluid cultures. All patients required drainage of the pericardial effusion, either under echocardiographic guidance or surgically. None of the patients died. The hospital stay was significantly shorter for those with idiopathic as opposed to bacterial pericarditis. Of those with an idiopathic aetiology, six required readmission due to recurrence of the pericardial effusion, with four patients requiring further surgical drainage. No patients required readmission with a bacterial or immunologic aetiology. No patient developed constrictive pericarditis after a median follow-up of 22 months.

CONCLUSION

Patients with large idiopathic pericardial effusion had relatively few constitutional symptoms as compared with their gross echocardiographic findings. Those with bacterial pericarditis had more urgent need for treatment. Patients with pericardial effusion of inflammatory origin, when treated appropriately, had an excellent outcome with no mortality or development of constrictive pericarditis.

Purulent pericarditis in childhood: ten years of experience

BACKGROUND/PURPOSE

Purulent pericarditis is a rapidly fatal disease if left untreated. This article describes our experience with diagnosis and management of 18 patients seen over a 10-year period.

METHODS

Eighteen children with purulent pericarditis were treated in our clinics between 1990 and 2000. Ten patients were boys and 8 were girls, and the mean age of all patients was 4 years (range, 8 months to 12 years).

RESULTS

Most common findings were fever and cardiac tamponade. Staphylococcus aureus was the most common causative agent, and the most common predisposing factor was respiratory tract infection. Chest radiography and echocardiography were the most important methods for diagnosis, and pericardiosynthesis was diagnostic in purulent pericarditis. The treatment methods performed in our patients were subxiphoidal pericardial tube (10 patients), pericardiectomy after subxiphoidal pericardial tube (2 patients), pericardiectomy (3 patients), and pericardiocentesis-intrapericardial thrombolytic treatment (3 patients). Only one patient (5.5%) died who was critically ill at the time of admission.

CONCLUSIONS

Subxiphoidal tube drainage and pericardiectomy were performed with good results in these cases. Intrapericardial streptokinase and pericardial aspiration method also was thought to be beneficial.

The changing aetiological spectrum of pericarditis in children

The aetiologies, clinical features and follow-up data of 62 children with pericarditis admitted to a university hospital during a 6-year period were retrospectively assessed. Uraemic pericarditis was the most frequent and infections the second most frequent cause. In this series, the proportion of children with purulent pericarditis is less than in previous reports from developing countries. Familial Mediterranean fever, neoplasias, acute rheumatic fever and post-pericardiotomy syndrome were other important causes of pericarditis.

Use of imaging in the differential diagnosis of rheumatic diseases in children

Imaging studies are important adjuncts in the evaluation of children with suspected rheumatic diseases. They are best used as follow-up investigations to exclude specific differential diagnoses, based upon a careful history and physical examination. Often, repeated examination over a period of time, sometimes months, is necessary before a diagnosis can be made. The addition of selected imaging studies can be important in the common circumstance where no diagnosis is made, but the physician must assure the child and family that all appropriate efforts have been made to exclude important illnesses.