Normal Anion Gap: A Knowledge Gap.

We studied with great interest the article titled "Acute diarrhea and severe dehydration in children: Does non-anion gap component of severe metabolic acidemia need more attention?" by Takia L et al. and would express our views about the same. Normal anion gap metabolic acidosis (NAGMA) is a common entity following stool loss of bicarbonate during an acute diarrheal illness. Several studies have shown that there is a higher incidence of hyperchloremic acidosis and acute kidney injury (AKI) with normal saline (NS) when compared to balanced crystalloids like Ringer's lactate (RL) or balanced salt solutions like plasmalyte. We would like to know about the type of resuscitation fluid used in the study population as it would affect the degree of resolution of acidemia. As per the World Health Organization (WHO) guidelines, rehydration therapy for children with severe acute malnutrition (SAM) is different from other children including the fluid used for bolus, i.e., RL and oral rehydration solution (ORS), i.e., rehydration solution for malnourished (ReSoMal). We would like to know if the study population included SAM children and a subgroup analysis of the same was done as SAM is an independent risk factor for mortality and morbidity. We suggest to plan studies on cognitive outcome of these children. How to cite this article: Pratyusha K, Jindal A. Normal Anion Gap: A Knowledge Gap. Indian J Crit Care Med 2023;27(4):298.

Non-invasive Ventilation Failure - Predict and Protect.

Modified heart rate, acidosis, consciousness, oxygenation and respiratory rate (HACOR) score takes into consideration pneumonia, cardiogenic pulmonary edema, pulmonary acute respiratory distress syndrome (ARDS), immunosuppression, septic shock, and the sequential organ failure assessment (SOFA) score prior to non-invasive mechanical ventilation (NIV) that would impact the success of NIV and are commonly seen in patients presenting to the emergency. Propensity score matching could have been done for similar distribution of baseline characteristics. Specific objective criteria are needed to define respiratory failure requiring intubation. How to cite this article: Pratyusha K, Jindal A. Non-invasive Ventilation Failure - Predict and Protect. Indian J Crit Care Med 2023;27(2):149.

Paroxysmal Sympathetic Hypertension: An Underdiagnosed Entity or a Diagnostic Difficulty?

How to cite this article: Pratyusha K, Jindal A. Paroxysmal Sympathetic Hypertension: An Underdiagnosed Entity or a Diagnostic Difficulty? Indian J Crit Care Med 2023;27(2):151.

FOCUS more on POCUS.

How to cite this article: Venkatesan DK, Goel AK, Pratyusha, K. FOCUS more on POCUS. Indian J Crit Care Med 2023;27(3):225.

Serial Ultrasonographic-measurement of Gastric Residual Volume in Critically Ill Patients for Prediction of Gastric Tube Feed Intolerance: Views.

How to cite this article: Pratyusha K, Jindal A. Serial Ultrasonographic-measurement of Gastric Residual Volume in Critically Ill Patients for Prediction of Gastric Tube Feed Intolerance: Views. Indian J Crit Care Med 2023;27(1):79.

Infections in Critically Ill Children.

Health care-associated infections (HAI) directly influence the survival of children in pediatric intensive care units (PICU), the most common being central line-associated bloodstream infection (CLABSI) 25-30%, followed by ventilator-associated pneumonia (VAP) 20-25%, and others such as catheter-associated urinary tract infection (CAUTI) 15%, surgical site infection (SSI) 11%. HAIs complicate the course of the disease, especially the critical one, thereby increasing the mortality, morbidity, length of hospital stay, and cost. The incidence of HAI in Western countries is 6.1-15.1% and in India, it is 10.5 to 19.5%. The advances in healthcare practices have reduced the incidence of HAIs in the recent years which is possible due to strict asepsis, hand hygiene practices, surveillance of infections, antibiotic stewardship, and adherence to bundled care. The burden of drug resistance and emerging infections are increasing with limited antibiotics in hand, is still a dreadful threat. The most common manifestation of HAIs is fever in PICU, hence the appropriate targeted search to identify the cause of fever should be done. Proper isolation practices, judicious handling of devices, regular microbiologic audit, local spectrum of organisms, identification of barriers in compliance of hand hygiene practices, appropriate education and training, all put together in an efficient and sustained system improves patient outcome.

Phenotype and Genotype Profile of Children with Primary Distal Renal Tubular Acidosis: A 10-Year Experience from a North Indian Teaching Institute.

Primary distal renal tubular acidosis (dRTA) or Type 1 RTA in children is caused by a genetic defect (involved genes ATP6V0A4 , ATP6V1B1 , SLC4A1 , FOXI1 , or WDR72 ), which causes tubular transport defects characterized by an inability to appropriately acidify urine with resultant persistent hyperchloremic metabolic acidosis. Retrospective analysis of 28 children (14 males) under the age of 14 years with dRTA seen from 2010 to 2019 was reviewed, and detailed clinic records were analyzed. The clinical features, investigations, and response to treatment were recorded. The median age of the children at presentation was 30 months (range: 9.25-72 months), and the median age at onset of symptoms was 2 months. All the children had growth failure, polyuria, and polydipsia at presentation. Mean serum potassium, pH, bicarbonate, and anion gap at presentation was 2.3 ± 0.5 mmol/L, 7.22 ± 0.09, 13.28 ± 4.37 mmol/L, and 9.3 ± 2.18, respectively. Mean serum potassium, pH, bicarbonate at follow-up was 3.88 ± 0.6 mmol/L, 7.35 ± 0.06, and 20.13 ± 4.17 mmol/L, respectively. The median z-score for the weight for age and height for age at initial presentation was -4.77 (-7.68 to -3.74) and -4.21 (-5.42 to -2.37) and at follow-up was -3.35 (-5.29 to -1.55) and -3.84 (-5.36 to -1.63), respectively. Twenty-two (78.6%) children had medullary nephrocalcinosis. Four children had sensorineural hearing loss. Seven children had genetic testing done, and six had pathogenic or likely pathogenic variants in ATP6V1B1 and ATP6V0A4 gene. Children with dRTA have a guarded prognosis and ATP6V1B1 and ATP6V0A4 mutations are the most common implicated genetic defect in Indian children with distal RTA.

Impact of anemia on the cardiovascular status in children with chronic kidney disease: A pilot study.

BACKGROUND & AIMS: Myocardial dysfunction is one of the common complications in children with chronic kidney disease which results in significant morbidity and mortality. We aimed to find the impact of anemia with cardiac changes in children with chronic kidney disease (CKD). METHODS: In this cross-sectional pilot study, 54 children (38 males) up to the age of 16 years with different stages of CKD, not on dialysis, were enrolled. Cardiovascular functions were evaluated using 2D-echocardiography using EPIC-7 (Philips) machine by an independent trained Pediatric Cardiologist. The M-mode measurements of the left ventricle were measured, indexed for body surface area and z-scores were calculated. They were divided into two groups i. e with and without anemia. RESULTS: Out of the 54 children with CKD, children with and without anemia were 34 and 20 respectively. The end-diastolic volume was significantly higher in patients with anemia when compared with those without anemia (46.43 ± 16.49 ml vs 32.51 ± 4.98 ml). The mean left ventricular mass (59.54 ± 23.99 vs 37.24 ± 7.88 g) and end-diastolic thickness of the interventricular septum (0.73 ± 0.14 vs 0.54 ± 0.05 cm) was significantly elevated in CKD children with anemia. CONCLUSIONS: Left ventricular hypertrophy along with left ventricular dimension and left ventricular diastolic dysfunction was found to be significantly correlating with the degree of anemia. CKD children with anemia should be screened for underlying cardiac dysfunction and appropriate dietary modification and nutritional rehabilitation for iron deficiency should be addressed.