Idiopathic neonatal pneumoperitoneum with favorable outcome: A case report and review

Distinctive clinical features of spontaneous pneumoperitoneum in neonates: A retrospective analysis

BACKGROUND

Spontaneous pneumoperitoneum (SP) without gastrointestinal perforation rarely occurs in neonates, with most SP cases being idiopathic. Although SP usually follows a benign clinical course with favorable prognosis, it can become life-threatening in certain situations. In these cases, urgent surgical intervention may be required. Therefore, it may be difficult to decide when or how to perform prompt interventions.

AIM

To demonstrate the distinct clinical features of SP to guide appropriate management by comparing characteristics between SP and typical pneumoperitoneum secondary to gastrointestinal perforation.

METHODS

We retrospectively reviewed electronic medical records and identified 37 neonates with radiological evidence of pneumoperitoneum who were treated at our institution. Clinical variables were compared between neonates with SP without gastrointestinal perforation (Group A) and those with pneumoperitoneum secondary to gastrointestinal perforation (Group B). Clinical variables between groups were compared using Student’s t-test and the chi-square test. The risk factors related to mortality were examined using multi-logistic regression analysis.

RESULTS

Group A comprised 35.1% (13/37) of the patients. The frequency of persistent pulmonary hypertension (53.8%) and pneumothorax (46.2%) before the development of pneumoperitoneum was significantly higher in group A than in group B (P = 0.004). Platelet count and partial pressure of arterial oxygen (PaO2) were significantly lower in group A (P = 0.015 and 0.025, respectively). Overall mortality was significantly higher in group A than in group B (76.9% vs 16.7%, P = 0.001). Only preterm infants were significantly associated with high mortality (P = 0.041; odds ratio = 18.0). Accompaniment with persistent pulmonary hypertension and pneumothorax were also significantly high (P = 0.004) in group A, but these were not strongly associated with high mortality.

CONCLUSION

This study identified a higher mortality rate in patients with SP than that described in previous reports. Neonates with SP were more likely to have thrombocytopenia, pneumothorax, and persistent pulmonary hypertension. Prematurity was the most significant factor affecting mortality.

Spontaneous pneumoperitoneum in neonates: a case series

Background

Pneumoperitoneum is defined as the presence of free air in the peritoneal cavity. It is a surgical emergency that represents in 90% of the cases with a hollow viscus perforation and its feared consequences of sepsis and death. On the other hand, spontaneous pneumoperitoneum is a benign surgical entity occurring in newborns that requires no surgical intervention.

Cases presentation

In this series, we report three cases of benign spontaneous pneumoperitoneum in neonates treated at Jordan University Hospital between 2004 and 2021. Two of them were treated by exploration laparotomy but no gross pathology could be identified; one case was successfully treated conservatively with observation alone.

Conclusion

This case series recognizes the presence of such entity which can be treated conservatively, eliminating the unnecessary burden of morbidity and mortality of surgery in such age group.

Management of neonatal spontaneous intestinal perforation by peritoneal needle aspiration

OBJECTIVE

To describe conservative management of spontaneous intestinal perforation (SIP) in preterm infants using peritoneal needle aspiration (PNA).

STUDY DESIGN

Monocentric retrospective review of SIP cases treated primarily by PNA between 1999 and 2015 (n=31).

RESULTS

Mean gestational age was 29.2±2.4 weeks and birthweight 1149±428 g. SIP occurred at 3.7±2.2 days of life. PNA achieved definitive treatment in 18 patients (60%) with a mean of 1.8 (±0.8) procedures. All patients requiring more than three PNAs had secondary laparotomy. Two patients died and five presented severe cerebral lesions. Full enteral feeding was achieved 42±18 days after SIP. Intestinal morbidity included cholestasis (n=6), intestinal stricture (n=1) and growth restriction (n=22). On follow-up (n=25, median=4 years), no severe impairment was noted. Seventeen children (68%) had a normal development.

CONCLUSION

PNA as primary therapy for SIP is a viable option, resulting in definitive treatment in 60% of cases, with limited mortality and morbidity.

Pathogenetic and Prognostic Factors for Neonatal Gastric Perforation: Personal Experience and Systematic Review of the Literature

INTRODUCTION

Neonatal gastric perforation (NGP) is a rare entity. Our aim was to report our experience and review the recent literature to characterize NGP, describe associated factors, and define prognostic factors.

MATERIALS AND METHODS

Retrospective review of all consecutive patients with NGP treated between June 2009 and December 2017 in a third level pediatric hospital. In addition, a systematic review of Medline and Scopus database was performed using a defined strategy. All articles referring to NGP published between 2005 and 2017 were retrieved. Variables considered: prematurity (<37 weeks gestation), birth weight (BW), Apgar score, prenatal complications, age at diagnosis, bag ventilation, pathogenetic events, site of perforation, treatment of perforation, sepsis, and outcome. Mann-Whitney or Fisher's test were used as appropriate. Results are median (range) or prevalence.

RESULTS

Between 2009 and 2016 we treated 8 consecutive patients for NGP and 199 further cases were retrieved from the systematic review (total of 207 patients). Overall survival was 73%. Most frequently reported pathogenesis: iatrogenic (20 patients), hypoxic/ischemic or infection stress (13 patients), duodenal/jejunal obstruction (11 patients), drugs (11 patients), esophageal atresia (10 patients). 60% patients had only primary repair of the perforation as gastric surgery. Sepsis developed in 56 patients (34%).

CONCLUSION

Although the pathogenesis of NGP is pleomorphic, prematurity and low BWs are frequent in these patients. Reviewing our experience and the available literature, none of the variables considered, but sepsis was associated with mortality.

Idiopathic neonatal pneumoperitoneum, a case report

INTRODUCTION

There have been non-surgical conditions secondary to neonatal pneumoperitoneum (e.g., mechanical ventilation, pulmonary diseases and pneumatosis cystoides intestinalis) that neonates were able to overcome without the need for abdominal exploration. Idiopathic pneumoperitoneum, although similar to perforation of the alimentary tract and the previously mentioned non-surgical conditions, is a rare and benign condition that does not yet have a definite cause. The criteria by which a surgeon decides on which abdomen to open and which one to observe, is ill-defined. Thus, increasing the awareness of neonatologists and surgeons about this condition will help decrease complications due to unnecessary procedures.

PRESENTATION OF THE CASE

We report a case of a neonate with a massive pneumoperitoneum who obtained a surgical intervention with negative finding. We had noted that the bag of the abdominal drain was expanded with gas every 2days, we replace the bag by new one every 2days for 10days postoperative. Nonetheless, the cause of pneumoperitoneum remains unclear.

DISCUSSION

There are five main nonsurgical causes of free air in the peritoneal cavity. These are categorized as follow: pseudopneumoperitoneum, thoracic, abdominal, gynecological and idiopathic. This is a condition in which imaging shows free air in the peritoneal cavity that can either be managed with observation and supportive care alone or results in a negative laparotomy.

CONCLUSION

This case demonstrated that laparotomy is not a true routine in neonates with idiopathic pneumoperitoneum if a timely diagnosis is established. Future research is still necessary to understand the source of the free gas in the abdomen, as well as the underlying causes of delayed postoperative gas underdiaphragm and postoperative abdominal drain bag gas expansion.

Diagnosis and treatment of pediatric benign pneumoperitoneum: A case report series of 9 patients

INTRODUCTION

Benign pneumoperitoneum (BPPT) is defined as asymptomatic free intraabdominal air or as pneumoperitoneum without peritonitis. Symptomatic free air requires surgical anagement, but management of asymptomatic pneumoperitoneum is controversial. In this study, we investigate the diagnosis and treatment of BPPT in children.

CLINICAL FINDINGS

The clinical data of 9 pediatric patients with BPPT who were admitted to our hospital from January 2000 to January 2015 were retrospectively analyzed to summarize the diagnosis and treatment. Overall, 9 cases were included with 8 males and 1 female, aged from 4 days to 4 years. Among them there were 6 newborns (including 1 premature infant). Patients were all admitted to hospital with the major clinical symptom of abdominal distension, including 2 cases accompanied by tachypnea, 2 cases with vomiting, 1 case with diarrhea, and 2 cases with fever. No previous constipation or obstructive defecation existed. Six newborns had meconium defecation within 24 hours after birth. Physical examination revealed all patients with relaxed abdominal wall except 1 patient with abdominal distension had slight muscle stiffness and hyperactive bowel sounds. Abdominal X-ray suggested free air under the diaphragm in all cases.

INTERVENTIONS/OUTCOMES

All patients except for one case of laparotomy were conservatively treated and cured with fasting, infection prevention, rehydration, abdominocentesis, and close observation. Nine cases of patients were all discharged with no death occurrence. After discharge follow-up of 7 months to 6 years was conducted. There was no recurrence of similar symptoms, and children were in good growth and development.

CONCLUSION

The diagnosis of BPPT mainly relies on clinical symptoms in patient, careful abdominal examination, abdominal X-ray combined with abdominocentesis, and the exclusion of gastrointestinal perforation for confirmation. Conservative treatment can cure the disease. Attention should be paid to distinguish with surgical pneumoperitoneum to avoid unnecessary surgical exploration.

Benign pneumoperitoneum in newborns: which abdomen to open and which one to observe?

Benign pneumoperitoneum in newborns is not a rare condition that should be managed conservatively. Neonatologists and surgical teams should work together to avoid unnecessary and potentially risky procedures.

Percutaneous peritoneal drainage in isolated neonatal gastric perforation

A comment on the article by He et al, “Idiopathic neonatal pneumoperitoneum with favorable outcome: A case report and review”, published on World Journal of Gastroenterology that reported a case of idiopathic neonatal pneumoperitoneum, possibly due to gastric perforation, with a favorable outcome without surgical intervention.