|Year : 2018 | Volume
| Issue : 4 | Page : 224-230
Comparison of the effect of oral acetaminophen and ibuprofen on patent ductus arteriosus closure in premature infants referred to hajar hospital in Shahrekord in 2016-2017
Nabiollah Asadpour1, Pouriya Sarboloukzadeh Harandi2, Majid Hamidi1, Mohammad Reza Malek Ahmadi1, Afsaneh Malekpour-Tehrani3
1 Department of Pediatrics, Shahrekord University of Medical Sciences, Shahrekord, Iran
2 Department of Medical School, Shahrekord University of Medical Sciences, Shahrekord, Iran
3 Department Community Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
|Date of Web Publication||15-Oct-2018|
Dr. Majid Hamidi
Department of Pediatric Cardiology, Shahrekord University of Medical Sciences, Shahrekord
Source of Support: None, Conflict of Interest: None
Background and Aim: Arterial duct in term infants is closed 96 h after birth in normal conditions. In some cases, especially in preterm infants, this duct is not closed after birth, which is called patent ductus arteriosus (PDA). This disease, if left untreated, leads to depressed respiratory capacity and shunt in preterm infants. The aim of this study was to compare the effect of oral acetaminophen and ibuprofen on PDA closure in preterm infants. Materials and Methods: In this clinical trial, 50 infants with a gestational age of < 37 weeks with PDA, confirmed by echocardiography and clinical symptoms, were selected and randomly divided into two groups of 25. One group was orally given acetaminophen at 10 mg/kg body weight (BW) every 6 h for 72 h, and another group received ibuprofen at 10 mg/kg BW on the 1st day and then 5 mg/kg on the 2nd and 3rd days. Before and after the intervention, infants were examined for possible side effects using echocardiography. Results: According to the results before and after the intervention, the PDA diameter was not statistically significant difference between the two treatment groups (P = 0.328 and P = 0.602). Frequency and percentage of the closure of PDA in acetaminophen group were 23 (92%) and in the ibuprofen group 22 (88%) with no statistically significant difference (P = 1.000). The mean levels of blood urea nitrogen, creatinine, and aspartate aminotransferase were not significantly different between the two groups; however, the mean of alanine aminotransferase was higher in the acetaminophen group (P < 0.05). Urine output was normal in both groups; however, the frequency of gastrointestinal complications was higher in the ibuprofen group than in the acetaminophen group (P < 0.05). Conclusion: The results of this study indicate better or equal efficacy of acetaminophen in comparison to ibuprofen to close PDA.
Keywords: Acetaminophen, ibuprofen, infant, patent ductus arteriosus
|How to cite this article:|
Asadpour N, Harandi PS, Hamidi M, Malek Ahmadi MR, Malekpour-Tehrani A. Comparison of the effect of oral acetaminophen and ibuprofen on patent ductus arteriosus closure in premature infants referred to hajar hospital in Shahrekord in 2016-2017. J Clin Neonatol 2018;7:224-30
|How to cite this URL:|
Asadpour N, Harandi PS, Hamidi M, Malek Ahmadi MR, Malekpour-Tehrani A. Comparison of the effect of oral acetaminophen and ibuprofen on patent ductus arteriosus closure in premature infants referred to hajar hospital in Shahrekord in 2016-2017. J Clin Neonatol [serial online] 2018 [cited 2019 Feb 19];7:224-30. Available from: http://www.jcnonweb.com/text.asp?2018/7/4/224/243335
| Introduction|| |
The arterial duct is a vascular connection between the pulmonary artery and the aortic artery that, during the embryo period, diverts blood from the pulmonary bed to the systemic circulation. The arterial duct is contracted after birth and usually closes up to 72 h after birth. The closure of the tract after birth occurs for several reasons, and it has been shown that increasing arterial oxygen pressure that occurs when the lungs are ventilated after birth can lead to the closure of the duct. The oxygenated blood plays an important role in the closure of the duct., Meanwhile, the role of some prostaglandins (PGs) is known, and in fact, the balance between the contractile effects of oxygen contraction and PG dilators plays a fundamental role in the lack of arterial duct closure. On the other hand, the effects of these compounds depend on the intrauterine age of the embryo, and in premature infants, ductal susceptibility to the effects of PG-induced opening is comparatively greater and declines with increasing age.,,,,
The permanent self-closure of this duct occurs only in one-third of the infants <1000 g in the first 4 days of life; hence, the vast majority of them are candidates for drug or surgical interventions.
The closure of the patent arterial duct in preterm infants is associated with an increase in blood oxygen and reduced activity of vasodilators, including PGE2 and PGI2.
PG synthase has two different catalytic activities, i.e., cyclooxygenase and peroxidase. The cyclooxygenase activity catalyzes the conversion of arachidonic acid (AA) to PGG2 and catalyzes the peroxidase activity of AA to PGH2. Cyclooxygenase inhibitors, such as indomethacin and ibuprofen, compete with AA for cyclooxygenase. Paracetamol or acetaminophen is an analgesic with poor anti-inflammatory properties, which is commonly used for analgesic effects in all age groups. Acetaminophen also inhibits the production of PGs from AA by inhibiting PG synthase. Although the exact action mechanism of acetaminophen is still controversial, acetaminophen appears to have an effect on the peroxidase component of PG synthase. Peroxidase is activated at much (10 times) lower concentrations than peroxide.
Served by acetaminophen at very low concentrations of peroxide (as with hypoxia). In theory, these differences lead to the inhibition of peroxidase in cases where the inhibition of cyclooxygenase occurs less frequently, and therefore, the patent ductus arteriosus (PDA) treatment by acetaminophen is more efficient in such cases.
The preventive administration of indomethacin has been shown to improve the rate of permanent closure of the arterial duct.
The preventive administration of indomethacin also reduces the need for surgical closure of the duct and reduces the intraventricular hemorrhage in the brain; however, the survival rate does not improve without neurodevelopmental disorder.
Ibuprofen has similar effects on arterial duct closure with fewer side effects.
The surgical closure of the duct is associated with a high mortality rate and poor neurodegenerative outcomes.
This method is limited to the time when despite treatment with indomethacin or ibuprofen, the arterial duct has significant hemodynamic symptoms, and pharmacotherapy should not be done.
There is evidence suggesting that acetaminophen causes the progression of the closure of the arterial duct, which has been most commonly seen in pregnant animal models, and one case of fetal arterial duct closure after nonprescribed consumption of acetaminophen by the mother has been reported.
Many clinical studies have been conducted the use of acetaminophen in newborns in recent years, as it is used to reduce pain in newborns.,
Therefore, if acetaminophen has less side effects with desirable efficacy, it can be considered for closure of the arterial duct in premature infants. Since there are different arguments that ibuprofen is better or acetaminophen, we investigated the effect of these two drugs in a clinical trial in premature infants with PDA.
| Materials and Methods|| |
This study was a randomized clinical trial. The sampling was convenient sampling method, and the participants were randomly assigned at a 1:1 ratio between ibuprofen and oral acetaminophen groups using cards in sealed opaque envelopes. After approving the research project and obtaining a letter of permission from the university's Research Deputy, eligible preterm infants were enrolled in the study after receiving consent from their parents.
There were two inclusion criteria as follows: suffering from PDA and having an age birth of <37 weeks.
Then, the enrolled infants were randomly divided into two groups of 25.
A group received 10 mg/kg body weight (BW) of oral acetaminophen every 6 h for 72 h, and the other group received ibuprofen at a dose of 10 mg/kg BW on the 1st day and then 5 mg/kg BW on the 2nd and 3rd days.
After a week, the infants had echocardiography twice to obtain information about the closure of the arterial duct.
To ensure anatomical closure, the cases of PDA that have treated, also surveying again of late-maturing closure of PDA in cases that have not been closed after medication therapy, the infant's mother was reminded to have another echocardiography 1 month later to ensure that her infant's arterial duct has remained closed.
The infants, who were included in the study, were subjected to laboratory examination before intervention and taking the drug. Laboratory tests included creatinine, blood urea nitrogen (BUN), alanine aminotransferase (ALT), and serum aspartate aminotransferase (AST). These tests were repeated 24–48 h after the study to determine the effect of the intervention on them. Exclusion criteria were increase in creatinine and urine by <1 ml/kg BW per hour. The results of the tests were recorded in a predeveloped checklist and then were analyzed using SPSS version 20 (IBM, Armonk, NY, United States of America). Continuous data were given as the means ± standard deviation t-test, and the Wilcoxon rank-sum test was used to compare parametric and nonparametric continuous data between groups, respectively. Chi-square or Fisher's exact was also used for categorical data.
Noninferiority analysis is a statistical method that is used to determine whether a new drug is noninferior to a drug of known efficacy. A new drug is considered at least as effective as the known drug if P < 0.05 or CL>-δ, CL is the lower limit of the 95% confidence interval (CI) of the difference between two groups; δ is the noninferiority margin.
| Results|| |
In this clinical trial, 50 infants with PDA with birth age of <37 weeks were randomly assigned into two groups of 25 given acetaminophen and ibuprofen separately. All of 50 participants completed the study, and there was no loss of follow-up.
The results of the mean PDA diameter before and after the intervention in the groups are shown in [Table 1].
|Table 1: Comparison of mean patent ductus arteriosus diameter before and after intervention in the studied groups|
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PDA diameter in the two groups was not significantly different before and after the intervention.
Frequency and percentage of PDA closure after intervention in the two groups studied are shown in [Table 2].
|Table 2: Frequency and percentage of patent ductus arteriosus closure before and after intervention in the studied groups|
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According to the results, the frequency of PDA closure in the acetaminophen group was 23 (92%) and in the ibuprofen group was 22 (88%) with no statistically significant difference.
The comparison of the BUN, creatinine, AST, and ALT before and after intervention in the studied groups is shown in [Table 3].
|Table 3: Comparison of mean blood urea nitrogen, creatinine, aspartate aminotransferase, and alanine aminotransferase before and after intervention in the studied groups|
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As this table shows, before and after the intervention, the mean values of BUN, creatinine, and AST were not significantly different between the two treatment groups given acetaminophen and ibuprofen. There was no significant difference in the mean value of ALT before intervention between the two groups; however, there was a significant difference between the two groups after the intervention, which was more pronounced for the group given acetaminophen (P < 0.05), but all of them were in normal range of infants.
The frequency of normal and abnormal urine output in the studied groups before and after the intervention is shown in [Table 4]. In both groups, urine output was normal in all normal individuals.
|Table 4: Frequency of normal and abnormal urine output before and after intervention in the studied groups|
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The frequency of gastrointestinal (GI) complications before and after intervention in the groups studied is shown in [Table 5].
|Table 5: Frequency of gastrointestinal complications before and after intervention in the studied groups|
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Before the intervention, none of the infants had GI complications. After intervention, the frequency of GI complications was 0 in the acetaminophen group and 5 in the ibuprofen group, with a statistically significant difference (P < 0.05). All of the complications were brown-colored discharge, and no active hemorrhage was observed [Figure 1].
| Discussion|| |
PDA developed in 17 of 111 premature infants (birth weight 1750 g or less) born during a 4-year period (15.3% incidence). PDA, if not removed quickly in premature infants, causes the baby to develop certain symptoms such as cyanosis, depressed respiratory capacity, and shunt that endangers the survival of the infant.
Preventive administration of indomethacin also reduces the need for surgical closure of the duct but is associated with several kidney and digestive complications. Ibuprofen has a similar effect on the closure of the arterial duct with comparatively fewer side effects than indomethacin.
As compared to ibuprofen, indomethacin is associated with an increase in serum creatinine and a decrease in urine output and oliguria.
However, the use of ibuprofen is often associated with GI complications including GI bleeding; hence, researchers have sought to find alternative drugs that are adequately efficacious and have no side effects.
In 2011, paracetamol was first proposed by Hammerman et al., as an alternative to ibuprofen for the treatment of PDA. They showed that paracetamol was effective on the premature infants with PDA. Afterward, in other studies, paracetamol was shown to be effective in treating PDA in premature infants.,,,
In the present study, with the aim of comparing the efficacy of acetaminophen and ibuprofen in PDA in premature infants, 50 neonates with PDA with birth age of <37 weeks were randomly divided into two groups of 25; one group was given acetaminophen (10 mg/kg BW per 6 h for 72 h) and ibuprofen (10 mg/kg BW for the first 24 h and then 5 mg/kg BW for the 2nd and 3rd days). In both groups, acetaminophen and ibuprofen were administered without any specific problem for 72 h. Before intervention, after intervention, and 1 month later, the condition of the duct was examined using echocardiography. In addition, the amount of urine output, GI complications, and liver and kidney function were evaluated during and after the intervention.
In the present study, the use of a 10 mg/kg dose of acetaminophen at 6-h intervals for 72 h resulted in artery duct closure in 23 (92%) of the 25 infants.
In the study of Akbari Asbagh et al., the administration of acetaminophen at 15 mg/kg at 6-h intervals for 48 h resulted in artery duct closure in 12 (75%) of the infants whereas in 4 (25%) the arterial ducts remained open.
The lower rate of arterial duct closure in the study of Akbari Asbagh et al. compared to the present study may be due to the shorter treatment period.
In a study by Oncel et al. (2013), 10 infants with PDA were treated with acetaminophen at 15 mg at 18-h intervals for 72 h. Finally, it was observed that PDA was closed in all infants.
In a study by Sinha et al. (2013), 10 preterm infants with PDA with a gestational age of 33–27 weeks were treated with acetaminophen at 15 mg/kg at 8 h intervals for 48 h.
The results indicated that the arterial duct was closed after 72 h in all infants. In addition, no adverse effects were observed in the infants.
In the present study, the use of 10 mg/kg of ibuprofen at 12-h intervals for 72 h resulted in arterial duct closure in 22 (88%) of the 25 infants.
In a study by Heyman et al., 22 infants with PDA were first given ibuprofen at 10 mg/kg and then ibuprofen at 5 mg/kg for 48 h. The results indicated that PDA closure occurred in all the studied infants.
In a study by Aly et al., infants with PDA were first treated with ibuprofen at 10 mg/kg, followed by a dose of 5 mg/kg at 24-h intervals, and the results indicated that PDA closure in 83% of the infants.
There may be differences in the drug administration method in different studies.
In this study, the comparison of the efficacy of ibuprofen and acetaminophen showed that the diameter of the arterial duct remained unchanged in the groups receiving acetaminophen and ibuprofen before and after the intervention. The frequency of arterial duct closure in the acetaminophen group was 23 (92%) and in the ibuprofen group was 22 (88%) without any statistically significant difference. However, the diameter of the arterial duct was lower in the acetaminophen group, and PDA closure was higher in the acetaminophen group; however, the differences were not statistically significant.
The study of Dang et al. to compare the efficacy of ibuprofen and acetaminophen in closure of the arterial duct in premature infants, showed that the arterial duct closure occurred in 65 (81.2%) patients of the acetaminophen group and 63 (78.8%) patients of the ibuprofen group. The CI 95% of the difference between the two groups was 0.080–0.12, which indicates better performance of acetaminophen. The mean closure time for open arterial duct was 3.2 days in the acetaminophen group and 3.7 days in the ibuprofen group, indicating a faster closure of the arterial duct in the acetaminophen group. In addition, after the reopening of the arterial duct, five patients received acetaminophen, and six patients received ibuprofen.,
Oncel et al. (2014) compared the efficacy of oral acetaminophen and ibuprofen for the treatment of PDA in premature infants and acetaminophen (15 mg/kg every 6 h for 3 days) or ibuprofen (initial dose of 10 mg/kg and then 5 mg/kg every 24 h for 3 days) was prescribed.
The results showed that acetaminophen could be considered an alternative to treatment and management of PDA patients. In another study to investigate the efficacy of acetaminophen in comparison to ibuprofen for the treatment of PDA in preterm infants, acetaminophen was observed to cause fewer side effects, and in some cases, to be more efficacious, and therefore could be used as an alternative to ibuprofen. Ohlsson et al. (2012) conducted a meta-analysis to compare the efficacy of acetaminophen and ibuprofen in the treatment of PDA in preterm infants.
In their meta-analysis, they found two eligible studies regarding the comparison of ibuprofen and acetaminophen. After data collection, data on 250 infants treated with these two drugs were analyzed. Based on their results, no significant difference was found between oral paracetamol and oral ibuprofen with respect to the treatment of PDA after the first period of drug use (with normal relative risk of 90%, 95% CI of 0.67–1.22, relative risk difference of 0.04, and 95% CI of 0.16–0.8), indicating the effectiveness of acetaminophen to replace ibuprofen.
Studies have shown that persistent use of acetaminophen may cause liver and kidney damage and damage to blood cells.
The most common side effects of ibuprofen include GI complications such as nausea, vomiting, diarrhea, and hemorrhage.
In the present study, there was no significant difference in BUN, creatinine, and AST between the two groups given acetaminophen and ibuprofen although their levels were in normal range.
However, after intervention, the mean value of ALT was significantly higher in the acetaminophen group.
The frequency of GI complications was 0 in the acetaminophen group and 5 in the ibuprofen group, with a statistically significant difference. Urine output was normal in all infants of the two groups given acetaminophen and ibuprofen
In a clinical trial to compare ibuprofen and acetaminophen, hyperbilirubinemia and GI complications were higher in the ibuprofen group; however, there were no significant differences in other side effects between the two groups. The present study shows that acetaminophen and ibuprofen have similar efficacy in the closure of PDA.
The consumption of ibuprofen is associated with GI complications, and the use of acetaminophen is associated with increased levels of the liver enzyme. It is suggested that in subsequent studies, the effects of acetaminophen and ibuprofen on blood cells, hematocrit, and platelet count be also evaluated. In addition, it is recommended that patients be monitored for liver and kidney function as well as blood factors for longer periods. If increased liver enzymes and changes in blood factors are temporary and are quickly resolved, acetaminophen can be recommended as a safe drug for this purpose.
| Conclusion|| |
According to the results of the present study, there was no significant difference between the two groups of acetaminophen and ibuprofen regarding artery duct diameter and closure rate.
In addition, there was no significant difference between the two groups in average BUN, creatinine, and AST; however, the mean value of ALT was higher in the acetaminophen group.
Urine output was normal in both groups; however, the frequency of GI complications in the ibuprofen group was higher than that of the acetaminophen group. These results indicate that acetaminophen is more efficacious for PDA.
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Conflicts of interest
There are no conflicts of interest.
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[Table 1], [Table 2], [Table 3], [Table 4], [Table 5]