Prevalence of hearing impairment in neonatal encephalopathy due to hypoxia-ischemia: a systematic review and meta-analysis.

BACKGROUND: This systematic review was undertaken to estimate the overall prevalence of hearing impairment in survivors of neonatal HIE. METHODS: PubMed, EMBASE, CINAHL, EMCARE and Cochrane databases, mednar (gray literature) were searched till January 2023. Randomized controlled trials and observational studies were included. The main outcome was estimation of overall prevalence of hearing impairment in survivors of HIE. RESULTS: A total of 71studies (5821 infants assessed for hearing impairment) were included of which 56 were from high income countries (HIC) and 15 from low- or middle-income countries (LMIC). Overall prevalence rate of hearing impairment in cooled infants was 5% (95% CI: 3-6%, n = 4868) and 3% (95% CI: 1-6%, n = 953) in non-cooled HIE infants. The prevalence rate in cooled HIE infants in LMICs was 7% (95% CI: 2-15%) and in HICs was 4% (95% CI: 3-5%). The prevalence rate in non-cooled HIE infants in LMICs was 8% (95% CI: 2-17%) and HICs was 2% (95% CI: 0-4%). CONCLUSIONS: These results would be useful for counseling parents, and in acting as benchmark when comparing institutional data, and while monitoring future RCTs testing new interventions in HIE. There is a need for more data from LMICs and standardization of reporting hearing impairment. IMPACT: The overall prevalence rate of hearing impairment in cooled infants with HIE was 5% (95% CI: 3-6%) and 3% (95% CI: 1-6%) in the non-cooled infants. The prevalence rate in cooled HIE infants in LMICs was 7% (95% CI: 2-15%) and in HICs was 4% (95% CI: 3-5%). The prevalence rate in non-cooled HIE infants in LMICs was 8% (95% CI: 2-17%) and HICs was 2% (95% CI: 0-4%). These results would be useful for counseling parents, and in acting as benchmark when comparing institutional data, and while monitoring future RCTs testing new interventions in HIE.

Use of Vasopressin as Rescue Therapy in Refractory Hypoxia and Refractory Systemic Hypotension in Term Neonates with Severe Persistent Pulmonary Hypertension-A Prospective Observational Study.

OBJECTIVE: Persistent pulmonary hypertension of the newborn (PPHN) is a serious cardiorespiratory problem. PPHN is frequently associated with refractory hypoxia and hypotension, and optimal management has the potential to improve important clinical outcomes including mortality. The primary objective is to evaluate the efficacy and safety of rescue vasopressin (VP) therapy in the management of severe (refractory) hypoxia and refractory systemic hypotension in term neonates with severe PPHN. STUDY DESIGN: Neonates with refractory hypoxia and refractory hypotension due to severe PPHN needing VP were prospectively enrolled in the study. Refractory hypoxia was defined as oxygenation index (OI) ≥ 25 for at least 4 hours after the commencement of high-frequency oscillatory ventilation and nitric oxide at 20 ppm. Refractory hypotension was defined as mean blood pressure lesser than mean gestational age lasting for more than 15 minutes in spite of dopamine infusion at 10 µg/kg/min, adrenaline infusion at 0.3 µg/kg/min, and noradrenaline infusion at 0.1 µg/kg/min. RESULTS: Thirty-two neonates with PPHN were recruited. The baseline OI (mean ± standard deviation [SD]) before starting VP was 33.43 ± 16.54 which started decreasing significantly between 1 and 6 hours after the commencement of VP (p < 0.05). The mean blood pressure also increased concomitantly with a significant effect seen by 1 hour (p < 0.05). The vasoactive infusion score before the commencement of VP was mean 46.07 (SD = 25.72) and started decreasing after 12 to 24 hours of commencement of VP (p < 0.05). Lactate levels (mean ± SD) before starting VP were 7.8 ± 8.6 mmol/L and started decreasing between 6 and 12 hours (p < 0.05). Two neonates died due to refractory hypoxia and refractory hypotension (overall mortality 6.2%) CONCLUSION: Rescue VP therapy is a useful adjunct in the management of neonates with severe PPHN with refractory hypoxia and/or refractory hypotension. Improvement in oxygenation and hemodynamics with the use of VP results in reduced mortality. KEY POINTS: · Rescue vasopressin is a useful adjunct in the management of neonates with severe PPHN.. · Vasopressin helps reduce OI.. · Vasopressin reduces the vasoactive inotrope score..

An Unusual Presentation of Spontaneous Chylothorax.

True bilateral spontaneous chylothorax without any etiology has been reported rarely in the pediatric literature. A 3-year-old male child was detected to have incidental moderate chylothorax on USG thorax done for scrotal swelling. Investigations for infectious, malignant, cardiac, and congenital etiology were unremarkable. Effusion was drained by securing bilateral intercostal drains (ICD) and confirmed to be chyle on biochemical evaluation. The child was discharged with ICD in situ, but there was non-resolution of bilateral pleural effusion. Because of the failure of conservative treatment, video-assisted thoracoscopy (VATS) with pleurodesis was done. Thereafter, the child improved symptomatically and was discharged. On follow-up, there is no recurrence of pleural effusion, and the child has been growing well, albeit the etiology remains elusive. Chylothorax should not be missed in children presenting with scrotal swelling. In children with spontaneous chylothorax, VATS should be done after a fair trial of conservative medical management (thoracic drainage) along with continued nutritional management. How to cite this article: Kaul A, Fursule A, Shah S. An Unusual Presentation of Spontaneous Chylothorax. Indian J Crit Care Med 2022;26(7):871-873.

Author's Response to an Unusual Presentation of Spontaneous Chylothorax.

How to cite this article: Kaul A, Fursule A, Shah S. Author's Response to an Unusual Presentation of Spontaneous Chylothorax. Indian J Crit Care Med 2022;26(11):1226.

Lung ultrasound in neonates - An underused tool.

Point of care lung ultrasound (USG) can help in the diagnosis and management of critically sick neonates. It is based on seven simple principles that are comprehensive enough to diagnose all major lung pathologies. A compact small machine and a micro-convex or linear probe are the basic requirements to perform lung USG. In contrast to traditional USG principles, USG of the lung is based on artefacts. Some of the terminologies that are used to characterize normal lung include the pleural line, A-line, bat sign, lung sliding and seashore sign. Air/fluid mixture in varying ratios helps in diagnosis of normal lung, pneumothorax, interstitial syndrome (transient tachypnoea of newborn, respiratory distress syndrome, bronchopulmonary dysplasia), lung consolidation and pleural effusion.

A Survey of Less Invasive Surfactant Administration Usage in India.

Less invasive surfactant administration (LISA) has evolved as an alternative method for surfactant administration. An anonymous web-based survey of 22 questions was designed and sent to 127 neonatologists in India. Seventy-seven (61%) responses were returned from 22 states across India. Among 77 participants, 53 (68.8%) were using LISA, and amongst them, 19 (35.8%) were using LISA as the preferred method. Twenty-one (39.6%) LISA-using respondents learned the technique of LISA by watching online videos, whereas 20 (37.7%) acquired this skill during in-house training sessions. Nineteen (35.8%) centers were not using any premedication before performing LISA. Twenty (37.7%) participants notified regurgitation of surfactant needing a repeat dose as the most common problem encountered while performing LISA. The most common reason for not using LISA was lack of training (n = 20, 83.33%). Though LISA is a promising method of surfactant administration, not many centers prefer LISA in India due to the absence of uniform standardized training.

Duration of Antibiotic Therapy in Neonatal Gram-negative Bacterial Sepsis-10 Days Versus 14 Days: A Randomized Controlled Trial.

BACKGROUND: Optimal duration of antibiotic therapy in Gram-negative bacterial (GNB) sepsis in non-VLBW infants has not been specifically evaluated in previous studies. METHODS: This was an open labeled noninferiority randomized controlled trial. Non-VLBW infants with GNB sepsis without meningitis whose blood culture were sterile after day 7 of treatment and who were in clinical remission on day 9 of appropriate antibiotic were randomized to short duration (SDR) group and long duration (LDR) group. Infants in SDR group and LDR group received antibiotic therapy for 10 days and 14 days respectively. Primary objective was to compare treatment failure. Secondary objectives were to compare duration of hospitalization, complications of intravenous (IV) therapy and its duration, episodes of new-onset sepsis and all-cause mortality. RESULTS: Of 222 infants with GNB sepsis, 58 eligible infants were randomized in each group and 113 of these were analyzed. There was no difference in proportion of infants with multidrug-resistant (MDR) organism in SDR versus LDR group [33(60%) versus 32(55.1%) (P = 0.84)]. There were no treatment failures in either group. Median (IQR) duration of hospital stay was higher in LDR group as compared with SDR group: 20(18, 23) versus 16(13, 20) days (P < 0.001). Infants in LDR group required IV therapy for a longer duration as compared with SDR group mean (SD): 15.2(1.2) versus 10.9(0.8) days (P < 0.001). Median (IQR) episodes of extravasation were higher in LDR group: 5(4.7) versus 3(2.3) (P < 0.001). There was no difference in episodes of phlebitis and hematoma. No infants had died on follow up. CONCLUSION: In suitably selected non-VLBW infants with Gram-negative sepsis, 10 days therapy is noninferior to 14 days therapy.

Multisystem inflammatory syndromeneonates (MIS-N) associated with acute kidney injury: A case report.

A late preterm presented with multisystem involvement (respiratory failure, shock, acute kidney injury). Initially, the baby was managed with mechanical ventilation, inotropic support, antibiotics, fluid restriction and furosemide infusion. Despite conservative management for 12 h, urine output, metabolic status and renal function did not improve; peritoneal dialysis was therefore commenced. Intravenous immunoglobulin and methylprednisolone were introduced. Respiratory failure, shock and acute kidney injury (AKI) then resolved. The baby's condition gradually improved, and he was discharged after 19 days. On follow up, he was gaining weight satisfactorily, with no sequalae. Atypical presentation of multisystem involvement in the form of AKI should not be missed since it is treatable with definitive and supportive care and has a favorable outcome.

Neonatal Sepsis: Mortality and Morbidity in Neonatal Sepsis due to Multidrug-Resistant (MDR) Organisms: Part 1.

The major causes of emergence of multidrug-resistant organisms (MDRO) in neonatal sepsis include empiric antibiotic prescriptions, unregulated use of over-the-counter drugs, high incidence of healthcare associated infections (HAI), lack of awareness about antibiotic stewardship program and under staffing of neonatal intensive care units. In general, mortality due to MDRO sepsis is significantly higher as compared to non MDRO sepsis. Reported morbidities include prolonged use of total parenteral nutrition, need for central venous catheter, invasive ventilation, increased duration of hospital stay and neurologic sequelae.

Correction to: Neonatal Sepsis: Mortality and Morbidity in Neonatal Sepsis due to Multidrug-Resistant (MDR) Organisms: Part 1.

The article Neonatal Sepsis: Mortality and Morbidity in Neonatal Sepsis due to Multidrug-Resistant (MDR) Organisms: Part 1, written by Chand Wattal, Neelam Kler, J. K. Oberoi, Anurag Fursule, Anup Kumar and Anup Thakur, was originally published electronically on the publisher's internet portal (currently SpringerLink) on 11 December 2019 with open access.