We appreciate the interest of the reader in our
article [1]. The search of literature was performed till May 10, 2020,
till when there were no published studies with ten or more patients
describing the pediatric multisystem inflammatory syndrome (PMIS). It
might be possible that there were a few case reports, but as mentioned
in the methods, we did not include case reports and case series with
less than ten cases. Therefore, this syndrome did not appear in our
review.
We do not agree with the author’s suggestion of
including PMIS in the screening strategy for COVID-19 in children. As of
now, PMIS is a rare and poorly understood presentation of COVID-19 in
children [2]. The preliminary case definition itself is too complex to
assess in the screening area [3]. Therefore, it might not be feasible to
use it for the screening of COVID-19.
Living systematic review (LSR) is an emerging
approach in which the review is updated frequently (classically at
monthly intervals) and usually published online-only. Thought LSR seems
a reasonable approach in COVID-19, it is very time consuming, requires
lots of funding, and a dedicated team with long-term commitment.
Moreover, agreement on methods to manage the data synthesis in LSR is
still lacking, and the frequent statistical analyses can lead to an
inflated false-positive rate. Moreover, such a review can be published
online only, therefore requiring a major change in the existing
publication norms [4]. Therefore, at present, rather than considering it
as a replacement, LSR should be considered as supplementary to the
conventional review.
Ideally, meta-analysis should not have significant
heterogeneity and the confidence interval should be very narrow.
However, both of these conditions are extremely difficult to meet in
observational studies, that too in the early stages of a pandemic. We
explored heterogeneity using subgroup and sensitivity analysis using
standard methods, but did not find any significant difference in the
pooled estimates of any of the clinical or laboratory parameters. For a
clinician, the knowledge of the pooled estimates for various clinical
and laboratory conditions is indispensable, and it did not involve any
intervention, therefore the meta-analysis was warranted. The limitations
pointed out were already mentioned in our review [1].
1. Meena J, Yadav J, Saini L, Yadav A, Kumar J.
Clinical features and outcome of SARS-CoV-2 infection in children: A
systematic review and meta-analysis. Indian Pediatr. 2020; 57:820-6.
2. Acharyya BC, Acharyya S, Das D. Novel coronavirus,
mimicking kawasaki disease in an infant [published online ahead of
print, 2020 May 22]. Indian Pediatr. 2020;S097475591600184.
3. World Health Organization. Multisystem
inflammatory syndrome in children and adolescents temporally related to
COVID-19. Available from:
https://www.who.int/news-room/commentaries/detail/multisystem-inflammatory-syndrome-in-children-and-adolescents-with-covid-19.
Accessed July 09, 2020.
4. Living Systematic Reviews. Available from:
https://community.cochrane.org/
review-production/production-resources/living-systematic-reviews.
Accessed July 07, 2020.