Objective: Pulmonary hypoplasia is common in the perinatal period and causes death in newborn infants. It is commonly associated with a number of malformation syndromes. Various parameters are used to estimate pulmonary hypoplasia at fetal autopsy including Lung Weight Body Weight ratio (LW:BW), Radial Alveolar Count (RAC) and DNA estimation. Material and Method: This study was carried out as a retrospective analysis of 108 lung specimens of fetuses with congenital anomalies for a period of five years. All terminated fetuses with anomalies were received with 10% formalin. An inverted Y-shaped incision was made on the fetus to remove the lungs. Lung weight and body weight were measured and the ratio was calculated. Morphometric estimation of RAC was done microscopically by counting the number of alveoli using the Q capture software. RAC was calculated based on gestational age. Results: Among the restrictive lung diseases, pulmonary hypoplasia by the LW:BW ratio was prevalent in 43% while the same by RAC was 19%. Similarly, pulmonary hypoplasia by the LW:BW ratio was prevalent in 35% while the same by RAC was 26% among cases with non restrictive lung diseases. Oligohydramnios showed the highest prevalence of pulmonary hypoplasia (23.7%), followed by renal anomalies (16.9%) and CNS anomalies (15.2%). Conclusion: Pulmonary hypoplasia is a common occurrence in many congenital anomalies, premature rupture of membranes, and hydrops fetalis. Identifying the anomaly during the intrauterine period will help to anticipate and accordingly manage the baby in the postpartum period. Early diagnosis of correctable condition like oligohydramnios will also help in the early intervention and prevention of pulmonary hypoplasia.
STUDY QUESTION Is exclusive use of intragestational sac potassium chloride (KCl) and methotrexate (MTX) effective in the management of viable cesarean scar pregnancy (CSP)? SUMMARY ANSWER Exclusive use of intragestational sac KCl and MTX was effective in the management of viable CSP. WHAT IS KNOWN ALREADY Owing to a paucity of randomized studies on management of CSP, evidence-based management remains unclear. Intragestational sac KCl or MTX along with either systemic MTX or surgical intervention, such as uterine artery embolization or dilation and curettage, has proved to be effective in the management of CSP. Furthermore, there are limited data in the literature on the use of exclusive intragestational sac KCl and MTX for management of CSP and subsequent fecundity. STUDY DESIGN, SIZE, DURATION A prospective cohort study was conducted from June 2017 to September 2019. We recruited nine CSP patients referred to our unit. There was no lost to follow-up noted. PARTICIPANTS/MATERIALS, SETTING, METHODS Patients with an ultrasound diagnosis of CSP who fulfilled the inclusion criteria were recruited. The study was conducted in a tertiary care center. Clinical symptoms, pregnancy viability, gestational age and human chorionic gonadotrophin (HCG) values determined the management in each individual case. Accordingly, patients were grouped into the expectant management (Group I, n = 3) and intragestational sac KCl with MTX (Group II, n = 6) groups. Demographic details, clinical characteristics, ultrasound details at diagnosis, post-treatment HCG normalization time, menses resumption, mass resolution and subsequent fecundity were noted. Descriptive statistics were used for analyses. MAIN RESULTS AND THE ROLE OF CHANCE Of the nine patients with CSP, six patients had viable CSP and required intervention. Out of these, four patients expressed a desire for future fertility. Mean gestational age at treatment among patients in Group II was 54.33 ± 7.51 days (range 46–65). Mean HCG value at the time of diagnosis was 84 110 ± 38 679.39 IU/l in Group II patients as compared with 2512 ± 709.36 in Group I. HCG had decreased by 92.7 ± 3.78% 2 weeks after intervention and normalized (<5 IU/l) by 53.5 ± 14.97 days. No major complications occurred and additional treatment was not required in these patients. Menstruation had resumed by 26 ± 6.6 days after treatment in Group II. On follow up, a small unresolved mass was present in two patients and the cesarean scar niche was visible in the remaining four patients. Out of the four patients desirous of future conception, three conceived naturally and one delivered a term baby via repeat lower segment cesarean section. LIMITATIONS, REASONS FOR CAUTION The main limitation of our study was small sample size. All the patients were asymptomatic at presentation and hence we cannot comment on use of this method in those presenting with active vaginal bleeding. WIDER IMPLICATIONS OF THE FINDINGS Intragestational sac KCl plus MTX may be a highly effective approach for the management of viable CSP despite high initial HCG values. There seems to be no need for any further intervention. It can be considered as the first line minimally invasive treatment option in patients desirous of future fertility. Nevertheless, accumulation of further cases is required to validate this treatment modality. STUDY FUNDING/COMPETING INTERESTS No specific funding was received to undertake this study. The authors report no conflict of interest. TRIAL REGISTRATION NUMBER N/A
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