Masking and Viral Illnesses

 To date, widespread masking has been recommended by a number of organizations to reduce spread and personal infection risk from viruses like COVID 19.  The American Academy of Pediatrics, validated this recommendation by advising all children 2 and up to wear masks.  Yet quality data supporting any of these recommendations was never available.  This Cochrane Review collates the available quality studies and concludes neither cloth , surgical or even N95 masks provide any significant protection to the wearer in these settings.  The recommendation for public masking, while well intentioned, was wrong and should be abandoned immediately.

Background

Viral epidemics or pandemics of acute respiratory infections (ARIs) pose a global threat. Examples are influenza (H1N1) caused by the H1N1pdm09 virus in 2009, severe acute respiratory syndrome (SARS) in 2003, and coronavirus disease 2019 (COVID‐19) caused by SARS‐CoV‐2 in 2019. Antiviral drugs and vaccines may be insufficient to prevent their spread. This is an update of a Cochrane Review last published in 2020. We include results from studies from the current COVID‐19 pandemic.

Objectives

To assess the effectiveness of physical interventions to interrupt or reduce the spread of acute respiratory viruses.

Search methods

We searched CENTRAL, PubMed, Embase, CINAHL, and two trials registers in October 2022, with backwards and forwards citation analysis on the new studies.

Selection criteria

We included randomised controlled trials (RCTs) and cluster‐RCTs investigating physical interventions (screening at entry ports, isolation, quarantine, physical distancing, personal protection, hand hygiene, face masks, glasses, and gargling) to prevent respiratory virus transmission. 

Data collection and analysis

We used standard Cochrane methodological procedures.

Main results

We included 11 new RCTs and cluster‐RCTs (610,872 participants) in this update, bringing the total number of RCTs to 78. Six of the new trials were conducted during the COVID‐19 pandemic; two from Mexico, and one each from Denmark, Bangladesh, England, and Norway. We identified four ongoing studies, of which one is completed, but unreported, evaluating masks concurrent with the COVID‐19 pandemic.

Many studies were conducted during non‐epidemic influenza periods. Several were conducted during the 2009 H1N1 influenza pandemic, and others in epidemic influenza seasons up to 2016. Therefore, many studies were conducted in the context of lower respiratory viral circulation and transmission compared to COVID‐19. The included studies were conducted in heterogeneous settings, ranging from suburban schools to hospital wards in high‐income countries; crowded inner city settings in low‐income countries; and an immigrant neighbourhood in a high‐income country. Adherence with interventions was low in many studies.

The risk of bias for the RCTs and cluster‐RCTs was mostly high or unclear.

Medical/surgical masks compared to no masks

We included 12 trials (10 cluster‐RCTs) comparing medical/surgical masks versus no masks to prevent the spread of viral respiratory illness (two trials with healthcare workers and 10 in the community). Wearing masks in the community probably makes little or no difference to the outcome of influenza‐like illness (ILI)/COVID‐19 like illness compared to not wearing masks (risk ratio (RR) 0.95, 95% confidence interval (CI) 0.84 to 1.09; 9 trials, 276,917 participants; moderate‐certainty evidence. Wearing masks in the community probably makes little or no difference to the outcome of laboratory‐confirmed influenza/SARS‐CoV‐2 compared to not wearing masks (RR 1.01, 95% CI 0.72 to 1.42; 6 trials, 13,919 participants; moderate‐certainty evidence). Harms were rarely measured and poorly reported (very low‐certainty evidence).

N95/P2 respirators compared to medical/surgical masks

We pooled trials comparing N95/P2 respirators with medical/surgical masks (four in healthcare settings and one in a household setting). We are very uncertain on the effects of N95/P2 respirators compared with medical/surgical masks on the outcome of clinical respiratory illness (RR 0.70, 95% CI 0.45 to 1.10; 3 trials, 7779 participants; very low‐certainty evidence). N95/P2 respirators compared with medical/surgical masks may be effective for ILI (RR 0.82, 95% CI 0.66 to 1.03; 5 trials, 8407 participants; low‐certainty evidence). Evidence is limited by imprecision and heterogeneity for these subjective outcomes. The use of a N95/P2 respirators compared to medical/surgical masks probably makes little or no difference for the objective and more precise outcome of laboratory‐confirmed influenza infection (RR 1.10, 95% CI 0.90 to 1.34; 5 trials, 8407 participants; moderate‐certainty evidence). Restricting pooling to healthcare workers made no difference to the overall findings. Harms were poorly measured and reported, but discomfort wearing medical/surgical masks or N95/P2 respirators was mentioned in several studies (very low‐certainty evidence). 

One previously reported ongoing RCT has now been published and observed that medical/surgical masks were non‐inferior to N95 respirators in a large study of 1009 healthcare workers in four countries providing direct care to COVID‐19 patients. 

Hand hygiene compared to control

Nineteen trials compared hand hygiene interventions with controls with sufficient data to include in meta‐analyses. Settings included schools, childcare centres and homes. Comparing hand hygiene interventions with controls (i.e. no intervention), there was a 14% relative reduction in the number of people with ARIs in the hand hygiene group (RR 0.86, 95% CI 0.81 to 0.90; 9 trials, 52,105 participants; moderate‐certainty evidence), suggesting a probable benefit. In absolute terms this benefit would result in a reduction from 380 events per 1000 people to 327 per 1000 people (95% CI 308 to 342). When considering the more strictly defined outcomes of ILI and laboratory‐confirmed influenza, the estimates of effect for ILI (RR 0.94, 95% CI 0.81 to 1.09; 11 trials, 34,503 participants; low‐certainty evidence), and laboratory‐confirmed influenza (RR 0.91, 95% CI 0.63 to 1.30; 8 trials, 8332 participants; low‐certainty evidence), suggest the intervention made little or no difference. We pooled 19 trials (71, 210 participants) for the composite outcome of ARI or ILI or influenza, with each study only contributing once and the most comprehensive outcome reported. Pooled data showed that hand hygiene may be beneficial with an 11% relative reduction of respiratory illness (RR 0.89, 95% CI 0.83 to 0.94; low‐certainty evidence), but with high heterogeneity. In absolute terms this benefit would result in a reduction from 200 events per 1000 people to 178 per 1000 people (95% CI 166 to 188). Few trials measured and reported harms (very low‐certainty evidence).

We found no RCTs on gowns and gloves, face shields, or screening at entry ports.

Authors' conclusions

The high risk of bias in the trials, variation in outcome measurement, and relatively low adherence with the interventions during the studies hampers drawing firm conclusions. There were additional RCTs during the pandemic related to physical interventions but a relative paucity given the importance of the question of masking and its relative effectiveness and the concomitant measures of mask adherence which would be highly relevant to the measurement of effectiveness, especially in the elderly and in young children.

There is uncertainty about the effects of face masks. The low to moderate certainty of evidence means our confidence in the effect estimate is limited, and that the true effect may be different from the observed estimate of the effect. The pooled results of RCTs did not show a clear reduction in respiratory viral infection with the use of medical/surgical masks. There were no clear differences between the use of medical/surgical masks compared with N95/P2 respirators in healthcare workers when used in routine care to reduce respiratory viral infection. Hand hygiene is likely to modestly reduce the burden of respiratory illness, and although this effect was also present when ILI and laboratory‐confirmed influenza were analysed separately, it was not found to be a significant difference for the latter two outcomes. Harms associated with physical interventions were under‐investigated.

There is a need for large, well‐designed RCTs addressing the effectiveness of many of these interventions in multiple settings and populations, as well as the impact of adherence on effectiveness, especially in those most at risk of ARIs. 

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Pediatric obstructive sleep apnea—Dental professionals can play a crucial role

 Ongoing clinical research in the area of sleep disordered breathing has shown the benefit of a multidisciplinary team in treating these disorders.  Put simply,  sleep disorder treatment is not a one size fits all and you need many health care providers working together to find the right care plan.  These include the primary care provider, otolaryngologist, neurologist, pulmonologist, dentist/orthodontist, speech/occupational therapist and more.  This paper highlights the benefits of a multi-pronged strategy.

Abstract

The significant contribution of dental professionals to the management of selected adult obstructive sleep apnea (OSA) cases is understood. Among children, it has also been suggested that dental professionals may also help screen and manage this morbidity in selected cases. It has also been noted that our understanding of pediatric OSA lags significantly behind adult OSA. During the screening process for potential pediatric OSA cases, dental professionals may be quite helpful as specific craniofacial abnormalities have been previously associated with pediatric OSA, including Class II malocclusion, vertical facial growth and maxillary transversal deficiency. As dental professionals assess children more frequently than physicians, they can help screen sleep-disordered breathing signs and symptoms using validated questionnaires. In more advanced cases, orthodontists may be leading contributors to the management of selected cases where a craniofacial involvement is suspected. Rapid maxillary expansion and mandibular or maxillary anterior repositioning devices have been proposed as managing alternatives. So far, there is no substantial evidence if these approaches can be adopted to treat OSA fully or if the reported OSA signs and symptoms improvements observed in a selected group of patients are stable long-term. Nevertheless, dentists and orthodontists' integration into a transdisciplinary team should be encouraged to play a significant role. This review discusses dentists or orthodontists' potential contribution to screen and manage selective pediatric OSA patients as part of a transdisciplinary team.

Read abstract here.

Children with asthma not at increased risk for SARS-CoV-2 infection, study finds

 From the start of the COVID 19 pandemic, a real ongoing concern was identifying children and adolescents who could be high risk for poor outcomes with COVID 19 infections.  Asthma was presumed to be one of these conditions.  However, although mucosal respiratory viruses all have the potential to trigger asthma exacerbations, high quality data consistent fails to show any increased risk of COVID 19 related complications.  However, another Scottish study from last year reported higher risk for hospitalization due to asthma exacerbations after a COVID 19 infection if asthma was NOT well controlled.  To put it simply, if your child has asthma make sure it is controlled.

In a new study published in Pediatrics, researchers concluded that children with asthma have similar risk for for SARS-CoV-2 infection compared with children without asthma.

“We found no evidence that children with asthma are at higher risk of COVID-19 or of developing severe illness from COVID-19,” Matthew Kelly, MD, MPH, associate professor of pediatrics and global health, associate program director of the Pediatric Infectious Diseases Fellowship and associate director of physician-scientist development in the Office of Pediatric Education at Duke University School of Medicine in Durham, North Carolina, told Healio.

Kelly and colleagues conducted a retrospective cohort study that included 46,900 children aged 5 to 17 years in the Duke University Health System with a Durham County, North Carolina, residential address. Children with asthma were classified using previously validated electronic health record-based definitions, and SARS-CoV-2 infections were identified via positive polymerase chain reaction testing of samples collected from March 2020 to September 2021. Children with asthma were matched to those without asthma.

“Because severe asthma exacerbations are often associated with respiratory virus infections, there has been concern that children with asthma who acquire SARS-CoV-2 might be at high risk for severe illness,” Kelly told Healio. “However, we and others had seen relatively few children with SARS-CoV-2 infections hospitalized with asthma exacerbations; moreover, there were some data to suggest that asthma, or the inhaled corticosteroids commonly prescribed to children with asthma, might lower the risk of acquiring SARS-CoV-2.”

Read article here.

Read study here.

Long COVID in Children - What is it?

 COVID 19 infections in children and adolescent or rarely associated with a severe respiratory illness.  However, persistent respiratory symptoms have been reported in children after a COVID 19 infection.  With increased awareness about "long COVID" in adults, the question could be asked does such a disease exist in children.  This study attempted to answer this question by studying adolescents after COVID infection who had persistent respiratory symptoms like cough and shortness of breath.   The most common conditions identified in this small cohort of children included asthma features, paradoxical vocal fold motion, deconditioning and dysautonomia.

Abstract

Rationale

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes long-term pulmonary sequelae in adults, but little is known about pulmonary outcomes in pediatrics.

Objective(s)

The aim of this study was to describe long-term subjective and objective pulmonary abnormalities after SARS-CoV-2 infection in pediatric populations.

Methods

Single-center, retrospective cohort of patients seen in post-coronavirus disease 2019 (COVID-19) pulmonary clinic in 2021. Subjects evaluated had persistent pulmonary symptoms 4 weeks or more after initial infection. Clinical testing included a 6-min walk test (6MWT), chest X-ray, pre- and postbronchodilator spirometry, plethysmography, and diffusion capacity. Patients were followed 2-to-3-months after the initial visit with repeat testing. The primary outcome was the presence of abnormal pulmonary function testing. Secondary measures included variables associated with pulmonary outcomes.

Results

Eighty-two adolescents were seen at a median of 3.5 months postinfection, with approximately 80% reporting two or more symptoms at clinic presentation (cough, chest pain, dyspnea at rest, and exertional dyspnea). At follow-up (~6.5 months) exertional dyspnea persisted for most (67%). Spirometry was normal in 77% of patients, but 31% had a positive bronchodilator response. No abnormalities were noted on plethysmography or diffusion capacity. Clinical phenotypes identified included inhaled corticosteroid responsiveness, paradoxical vocal fold motion disorder, deconditioning, and dysautonomia. Multivariable modeling demonstrated that obesity, anxiety, and resting dyspnea were associated with reduced 6MWT, while female sex and resting dyspnea were associated with higher Borg Dyspnea and Fatigues scores.

Conclusions

This is the largest study to date of pediatric patients with long-term pulmonary sequelae post-COVID-19. Identified clinical phenotypes and risk factors warrant further study and treatment.

Read article here.

New Narcolepsy Therapy?

Narcolepsy is a rare disorder associated with excessive sleepiness despite adequate sleep time.  A potentially highly efficacious therapy for narcolepsy, Xywav, is complicated by a difficult dosing regimen requiring twice nightly administration for optimal effect.  A new therapy in development by Avadel may provide a similar benefit in a once nightly dose.

 Avadel Pharmaceuticals plc, whose marketing application for narcolepsy drug candidate FT218 is under review by the US Food and Drug Administration (FDA), presented in eight posters at World Sleep 2022. FT218 is an investigational formulation of sodium oxybate designed to be taken once at bedtime for the treatment of excessive daytime sleepiness (EDS) or cataplexy in adults with narcolepsy.

Data presented at World Sleep 2022 include results from a discrete choice experiment designed to characterize and quantify drivers of preferences for attributes associated with oxybate treatments for narcolepsy, with a background survey providing patient and clinician perspectives on narcolepsy disease burden, treatment approaches, and satisfaction with current narcolepsy treatment options. New post-hoc data from the completed pivotal Phase 3 REST-ON clinical trial of FT218 and interim data from the ongoing RESTORE open-label extension/switch study of FT218 was also presented.

“We know that untreated narcolepsy can have a devastating effect on patients’ quality of life and ability to function and that additional treatment options would benefit patients and clinicians. Results from the discrete choice experiment identified that the overall driver of treatment choice for oxybate therapy is once-nightly dosing,” says Anne Marie Morse, DO, director of child neurology and pediatric sleep medicine at Geisinger Medical Center at Janet Weis Children’s Hospital, in a release. “Taken together with the robust clinical data already published, along with new post-hoc analyses from the pivotal trial and interim long-term data from the ongoing open-label study….FT218 shows great potential for patient care.”

Highlights from the Poster Presentations

• The discreet choice experiment confirmed that once-nightly dosing, when compared to twice-nightly dosing, was the most important attribute driving both patient and clinician preference for overall oxybate product choice, as well as patient quality of life and reduction of patient anxiety/stress.
• Dosing frequency was also viewed as a more important attribute as compared to other attributes assessed, including sodium content.
• In the REST-ON post-hoc analyses, FT218 demonstrated improvement in subjective measures of daytime sleepiness, sleep quality, and refreshing nature of sleep as early as week 1 with the 4.5 g starting dose, with even greater improvement at week 2 soon after starting the 6 g dose compared to placebo.
• Additional post-hoc analyses, stratified by narcolepsy type, as well as concomitant stimulant use, or without stimulants, demonstrated positive results that are generally consistent with previously reported positive endpoints from REST-ON and add to the existing body of evidence for FT218.
• In the first presentation of an interim safety analysis from the ongoing RESTORE study, FT218 has generally been well tolerated, with some participants receiving therapy for more than 18 months; no new safety signals have emerged.

“In our first look at data from the interim analysis of the ongoing RESTORE study, we have affirmed that the tolerability of FT218 is in line with the well-established profile of sodium oxybate. We’re also pleased to share new results from our post-hoc analyses of the REST-ON trial that demonstrated clinically meaningful improvements with FT218 versus placebo in both subjective and objective measurements of narcolepsy symptoms, including EDS and disrupted nighttime sleep, with a dosing regimen preferred by patients and clinicians alike, consistent with our previous observations,” says Douglas Williamson, MD, chief medical officer of Avadel, in a release. “At Avadel, we believe in listening to patients to develop solutions that will have a meaningful impact on their symptoms. Our goal is to do just that for people living with narcolepsy, and we are working to bring FT218 to patients as a once-at-bedtime treatment option as quickly as possible.”

Read article here.

Sleep Awareness Week

This is Sleep Awareness Week.  Organizations such as the National Sleep Foundation routinely survey adults and find that sleep disorders are extraordinarily common and can significantly impact quality of life.  Sleep disorders in children and adolescents, though, are vastly underrecognized with between 20-30% of young children affected by disrupted sleep and 60-70% of adolescents experiencing reduced sleep time.  The effects can be numerous, including reduced cognitive function, mental health concerns, and increased metabolic and cardiovascular health risks.  A pediatric sleep specialist is NOT the sleep lab doctor.  A pediatric sleep clinic provides a comprehensive evaluation and treatment for all manners of sleep disorders to provide evidence based treatment recommendations for your entire health care team.

 To kick off Sleep Awareness Week, the National Sleep Foundation released the results from the 2022 Sleep in America Poll. The annual survey is one of the longest running records capturing Americans’ perceptions, attitudes, and behaviors around sleep. 

The 2022 Sleep in America Poll documents significant opportunities to improve daily activities that are associated with a range of positive sleep and health outcomes. Results show that many Americans are not getting bright light exposure during the day and are looking at screens around bedtime. In addition, many fall short of recommendations for exercise and take meals at inconsistent times.

Poll results show:

• Nearly half of Americans say they aren’t exposed to the recommended levels of bright light when indoors in the morning and afternoon.
• More than a third of Americans fall short of CDC’s recommendations for moderate or vigorous activity, another key factor in ensuring a sound sleep.
• Four in 10 Americans eat meals at inconsistent times, making it more difficult for their bodies to regulate the sleep/wake process.
• More than half of Americans indulge in screen time within an hour before bed or even while in bed.

“Over the last 31 years, the National Sleep Foundation has conducted the Sleep in America Poll to gain a better understanding of Americans’ sleep health and habits. These latest results highlight how people are doing with key daytime behaviors, knowing that what we do during the day and at night is important for sleep,” says John Lopos, CEO, National Sleep Foundation, in a release. “The best practices we continue to share can help you become your ‘Best Slept Self’— and by that we mean the radiant, positive feeling reflected in the way you look, feel, and navigate the day.”

Things you can do to help be your Best Slept Self:

• Increase exposure to bright light upon waking and throughout the afternoon.
• Help regulate your body’s sleep/wake process by eating meals at consistent times during the day and avoiding heavy meals 2-3 hours before bed.
• Avoid screentime at least one hour before bed.
• Make your bedroom a sleep-friendly space by keeping it cool, dark, and quiet.
• Follow recommended guidelines on proper exercise to improve overall health and your sleep. Aim for at least 20 minutes of exercise a day.
• Get the recommended hours of sleep per night. The National Sleep Foundation recommends 7-9 hours for most adults.

The Sleep in America Poll is fielded annually and results are shared during National Sleep Foundation’s Sleep Awareness Week. Sleep Awareness Week runs Sunday, March 13 through March 19. NSF independently produces Sleep Awareness Week, the Sleep in America Poll, and all related official educational content.

Sleep Awareness Week 2022 is supported by unrestricted funds from Jazz Pharmaceuticals, Eisai, Inc., Avadel Pharmaceuticals, Graber, Harmony Biosciences, Huckleberry, Idorsia, and PureCare. 

Read article here.

Asthma Education Reduces Hospitalization and Emergency Room Risk

 

Asthma is a complex respiratory disorder that significantly raises risk for ER visits and hospitalizations.  Despite it's complexity, there is a consistent knowledge gap that can put patients and parents at a significant disadvantage.  Following a consistent strategy grounded in evidenced based practice can make a difference in reducing chaos and preventing frequent sick visits.  This study demonstrated that a focused asthma education program consistently reduced these risks.

Background It remains unknown whether child-oriented asthma education is associated with better health outcomes. This meta-analysis investigated the effects of asthma education on hospitalisation and emergency department and clinic visits.

Methods We searched the Cochrane Library, PubMed and EMBASE for relevant studies from inception to 4 July 2021, and selected studies that reported hospitalisation or emergency department or clinic visits as outcomes. The participants were only children. Two authors independently selected the studies, assessed the quality of the included studies and retrieved the data. A third senior author was engaged to resolve disagreements. Fifteen longitudinal studies were included for the systematic review and meta-analysis. Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 was used as the standard of reporting (PRISMA registration ID is 284509).

Findings Compared with the control group, the asthma education group had 54% lower hospitalisation risk (95% CI 0.32 to 0.66), and 31% lower emergency department visit risk (95% CI 0.59 to 0.81). Sensitivity analysis showed that the asthma education group had a reduced clinic visit risk (risk ratio (RR)=0.80, 95% CI 0.67 to 0.97). Subgroup analysis showed that asthma education involving both children and parents/guardians was associated with fewer hospitalisations (RR=0.38, 95% CI 0.24 to 0.59) and emergency department visits (RR=0.69, 95% CI 0.57 to 0.83). Asthma education in hospitals or non-hospitals can reduce the risk of hospitalisation and emergency department visits. However, only education in the hospitals was associated with the reduction of clinical visits (RR=0.45, 95% CI 0.22 to 0.92).

Interpretation Education is effective for controlling asthma, especially for reducing hospitalisation and emergency department and clinic visits. Education involving both children and parents/guardians is more effective than that involving only children. The setting of asthma education does not impact its effect to a large extent.

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Hypoxemia and Risk for Bronchopulmonary Dysplasia In Preterm Infants

Bronchopulmonary dysplasia (BPD) is a chronic lung disease in infants associated with extreme prematurity.  Understanding contributing factors is important since there is a strong link between this condition and neurodevelopmental impairment and other childhood disease.  This study demonstrated a strong association between frequency and severity of oxygen desaturations in the development of severe BPD.  Importantly, oxygen desaturations of 1 minute or longer were significantly correlated.  

Abstract

Rationale: Bronchopulmonary dysplasia increases the risk of disability in extremely preterm infants. Although the pathophysiology remains uncertain, prior exposure to intermittent hypoxemia may play a role in this relationship. Objectives: To determine the association between prolonged episodes of intermittent hypoxemia and severe bronchopulmonary dysplasia. Methods: A post hoc analysis of extremely preterm infants in the Canadian Oxygen Trial who survived to 36 weeks' postmenstrual age was performed. Oxygen saturations <80% for ⩾1 minute and the proportion of time per day with hypoxemia were quantified using continuous pulse oximetry data that had been sampled every 10 seconds from within 24 hours of birth until 36 weeks' postmenstrual age. The study outcome was severe bronchopulmonary dysplasia as defined in the 2001 NIH Workshop Summary. Measurements and Main Results: Of 1,018 infants, 332 (32.6%) developed severe bronchopulmonary dysplasia. The median number of hypoxemic episodes ranged from 0.8/day (interquartile range, 0.2-1.1) to 60.2/day (interquartile range, 51.4-70.3) among the least and most affected 10% of infants. Compared with the lowest decile of exposure to hypoxemic episodes, the adjusted relative risk of severe bronchopulmonary dysplasia increased progressively from 1.72 (95% confidence interval, 1.55-1.90) at the 2nd decile to 20.40 (95% confidence interval, 12.88-32.32) at the 10th decile. Similar risk gradients were observed for time in hypoxemia. Significant differences in the rates of hypoxemia between infants with and without severe bronchopulmonary dysplasia emerged within the first week after birth. Conclusions: Prolonged intermittent hypoxemia beginning in the first week after birth was associated with an increased risk of developing severe bronchopulmonary dysplasia among extremely preterm infants. Clinical trial registered with www.isrctn.com (ISRCTN62491227) and www.clinicaltrials.gov 

Read abstract here.

Helping High Risk Infants and Parents Sleep Better: ATS Guidelines for Outpatient Care of Premature Infants

Premature infants, particularly born before 30 weeks gestation who have been given a diagnosis of chronic lung disease, bronchopulmonary dysplasia, or post-prematurity respiratory disease face significant challenges in transition from the NICU environment to life at home.  The lack of guidelines to help focus care and quality medical literature differentiating outcomes is stark.  Parents and physicians need tools to care for these high risk infants. These new ATS guidelines nicely evaluate the role of inhaled medications, swallowing assessment, airway endoscopy, and especially sleep testing and provide timely recommendations.

Outpatient Respiratory Management of Infants, Children, and Adolescents with Post-Prematurity Respiratory Disease: An Official American Thoracic Society Clinical Practice Guideline

New recommendations are available to help guide physicians who must determine when and how to treat infants, children and adolescents with post-prematurity respiratory disease (PPRD). The American Thoracic Society has published an official clinical practice guideline in which a multidisciplinary panel of experts provide 13 conditional recommendations on the diagnostic testing and clinical management of these young people. The complete guideline detailing these recommendations was posted online ahead of print in the American Journal of Respiratory and Critical Care Medicine.

Worldwide, approximately 12 million infants—10 percent of live births—are born prematurely and are at risk for respiratory disease, the most common of which is bronchopulmonary dysplasia (BPD). However, all premature infants, even those who do not meet the criteria for having BPD, may develop poor respiratory health later in life with signs and symptoms including cough, recurrent wheezing, exercise intolerance, low blood oxygen (hypoxemia) and reduced pulmonary function. These individuals are classified as having PPRD.

Read article here.

SARS-CoV-2 associated respiratory illnesses may include pneumonia, asthma exacerbations and acute bronchiolitis among others.  Risk to children in comparison to adults is remarkably low.  However, acute bronchiolitis is the most common cause of hospitalization in infants.  This study assessed frequency of hospitalization due to SARS-CoV-2 and found frequency and severity to be low, estimated at less than 2% of all hospitalized children.

SARS-CoV-2 acute bronchiolitis in hospitalized children: Neither frequent nor more severe

Introduction

Endemic coronaviruses have been found in acute bronchiolitis, mainly as a coinfecting virus. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been responsible for respiratory illness in hospitalized children. The characteristics of patients with bronchiolitis have not been extensively described.

Methods

Cross-sectional study of patients with bronchiolitis and SARS-CoV-2 infection enrolled in a prospective multicenter cohort of children hospitalized with COVID-19 in Spain from March 1, 2020 to February 28, 2021.

Results

Twelve of 666 children infected with SARS-CoV-2 who required hospital admission met the diagnostic criteria for bronchiolitis (1.8%). Median age was 1.9 months (range: 0.4–10.1). Six cases had household contact with a confirmed or probable COVID-19 case. Main complaints were cough (11 patients), rhinorrhea (10), difficulty breathing (8), and fever (8). Eleven cases were classified as mild or moderate and one as severe. Laboratory tests performed in seven patients did not evidence anemia, lymphopenia, or high C-reactive protein levels. Chest X-rays were performed in six children, and one case showed remarkable findings. Coinfection with metapneumovirus was detected in the patient with the most severe course; Bordetella pertussis was detected in another patient. Seven patients required oxygen therapy. Albuterol was administered in four patients. One patient was admitted to the pediatric intensive care unit. Median length of admission was 4 days (range: 3–14). No patient died or showed any sequelae at discharge. Two patients developed recurrent bronchospasms.

Conclusion

SARS-CoV-2 infection does not seem to be a main trigger of severe bronchiolitis, and children with this condition should be managed according to clinical practice guidelines. 

Pediatric Pulmonology

Volume57, Issue1

January 2022

Pages 57-65

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Setting Discharge Goals for High Risk Infants

 A useful and much study needed since neonatologists and consulting pediatric pulmonologists rely on few reliable indicators to judge discharge readiness.  And with little guidance, often managed care restrictions may prompt premature discharge.  A baseline CO2 retention above a certain threshold always seemed like at least 1 useful measure, now supported by this South Korean study.

Children with chronic lung disease of prematurity tend to have reduced lung function, increased susceptibility to respiratory viral illness, and elevated risk for rehospitalization.  Setting goals for discharge are greatly needed in this high risk population.

Capillary partial pressure of carbon dioxide for predicting rehospitalization in preterm infants under noninvasive respiratory support with severe bronchopulmonary dysplasia

Abstract

Background

The severity of bronchopulmonary dysplasia (BPD) is an important predictor of prognosis in preterm infants. However, the severity of BPD was determined mainly by the degree of oxygen supplementation and mode of respiratory support.

Objectives

This retrospective study aimed to examine the role of partial pressure of carbon dioxide (pCO2) in predicting rehospitalization among preterm infants with severe BPD without invasive ventilation at 36 weeks' postmenstrual age (PMA).

Methods

We assessed preterm infants aged <32 gestational weeks with severe BPD who were receiving noninvasive respiratory support at 36 weeks' PMA. Patients were compared after stratifying them according to the history of rehospitalization owing to respiratory infection before a corrected age (CA) of 1 year and pCO2 measured by capillary blood gas analysis at 36 weeks' PMA.

Results

Among 54 infants who had severe BPD with noninvasive respiratory support at 36 weeks' PMA, 16 (29.6%) experienced rehospitalization due to respiratory problems. At 36 weeks' PMA, the amount of oxygen supplementation (0.30 vs. 0.28, p = 0.021) and pCO2 (62.1 vs. 53.6 mmHg, p = 0.006) were higher in the rehospitalization group than in the no rehospitalization group. Multivariate logistic analysis findings indicated that pCO2 ≥ 57.4 mmHg was the only factor associated with rehospitalization (adjusted odds ratio: 8.017, 95% confidence interval 1.239–51.859).

Conclusion

High pCO2 during noninvasive respiratory support at 36 weeks' PMA in severe BPD was associated with rehospitalization. Consideration of the degree of impairment in ventilatory capacity may improve the prediction of later respiratory outcomes in infants with BPD.

Pediatric Pulmonology

Volume56, Issue12

December 2021

Pages 3863-3869

Read abstract here.

FDA approves dupilumab for children aged 6 to 11 with moderate to severe asthma

Now that another biologic therapy is available for pediatric severe asthma, it is important to look at the indications for add on biologic therapy for asthma.  In general, there are 2 broad categories of asthma that may warrant adding an injectable biologic therapy:

1) Children and adolescents with severe asthma, poorly controlled despite compliance with high dose asthma therapy.  Here, poorly controlled may indicate frequent hospitalization, ER, or urgent care visits.  In addition, systemic steroid use and symptoms that affect quality of life (school, exercise, etc) are important considerations.

2) Children and adolescents with severe asthma that is controlled, but requires high dose asthma controller medication.  This is an important consideration because high dose inhaled glucocorticoids have been associated with a numbers of risks including reduced growth velocity, obesity, adrenal insufficiency, and ocular side effects like cataracts.

The FDA has approved dupilumab as an add-on maintenance treatment for children aged 6 to 11 years with moderate to severe asthma characterized by an eosinophilic phenotype or with oral corticosteroid-dependent asthma.
The expanded approval of dupilumab (Dupixent, Regeneron/Sanofi) to children aged 6 to 11 was based on data from the phase 3, double-blind, placebo-controlled LIBERTY ASTHMA VOYAGE trial that evaluated efficacy and safety of dupilumab compared with standard care in children with uncontrolled moderate to severe asthma. More than 90% of children in the trial had at least one concurrent type 2 inflammatory condition, according to a company press release.
“I was impressed that dupilumab met not only its primary endpoint of reduction in asthma exacerbations, but also all key secondary endpoints in the pediatric ASTHMA VOYAGE trial,” Leonard B. Bacharier, MD, professor of pediatrics at Monroe Carell Jr. Children’s Hospital at Vanderbilt University Medical Center and principal investigator of the ASTHMA LIBERTY VOYAGE trial, told Healio. “I anticipate that clinicians will begin to include dupilumab in their discussions with families of children with uncontrolled moderate-severe asthma. Many children in this age group continue to experience repeated asthma exacerbations, and experience side effects from frequent courses of systemic corticosteroids. Dupilumab’s demonstrated efficacy in significantly reducing exacerbations will allow such children greater disease control.” 

Read article here.

COVID 19 Risk With Asthma

Good News (Mostly) for Asthma Patients During Pandemic

COVID 19 has not shown the risk to asthma sufferers that many experts anticipated.  The role of biologic use and risk may still be unclear.  However, COVID 19 is a mucosal respiratory virus and can likely trigger a viral asthma exacerbation especially for those that are uncontrolled.  This is why it's important to work with your asthma specialist to optimize control especially in the problem seasons.  These include:
1) Having a written asthma action plan with clear recommendations for flare ups
2) Regular follow up with asthma specialist to monitor asthma control
3) Becoming familiar with symptoms of poor control, including frequent SABA use and exercise intolerance

Two studies presented at the European Respiratory Society (ERS) virtual meeting should reassure asthma patients and their physicians about their risks from COVID-19.

On the one hand, "no evidence of excess deaths was directly attributed to asthma" in a study of Scottish data on hospital admissions and death certificates during the first COVID-19 wave in early 2020, said Steven Smith, MRCP, of Gartnavel General Hospital in Glasgow.

And on the other, analysis of asthma patients receiving biologic drugs in Greek clinics showed no overall increase in COVID infection rates relative to the general population through April of this year, reported Andriana Papaioannou, MD, PhD, of Attikon University Hospital in Athens.

These encouraging results come against a backdrop of worry about how patients with preexisting respiratory disease, who may also be taking immune-modulating drugs, would fare during the pandemic.

There were two concerning blips in the Greek data, however. Papaioannou's group found that, among the 26 biologic-treated patients who did come down with COVID-19, nine needed hospitalization -- a considerably higher proportion than among COVID patients in the general Greek population, she said.

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