RESUMEN
The studies on the operational parameters of selected nozzles were conducted in the laboratory using a patternator with the operational parameters of four types of nozzles (hollow cone, 3-way discharge nozzle (3D), flood type, and solid cone nozzle), five operating pressures (400, 500, 600, 800, and 1000 kPa), and five nozzle heights (0.2, 0.3, 0.4, 0.5, and 0.6 m). The effects of independent variables on spray discharge, droplet size, uniformity coefficient, droplet density, and spray angle were studied. It was observed that the discharge rate increased by increasing the operating pressure, and discharge varied for different types of nozzles. The Hallow cone nozzle exhibited a minimum discharge rate of 0.515 l/min, and the maximum discharge rate recorded was 1.546 l/min for the 3D nozzle. The droplet size decreases with increasing operating pressure. As the operating pressure increased, the size of the droplets formed into fine particles. The maximum droplet size of 251 µm was produced by the 3D nozzle, and the minimum was 117 µm by the Hallow cone nozzle. The spray uniformity increased with an increase in operating pressure. Spray uniformity was minimal in cases of low operating pressure because of the size of the droplets. Droplet density increased with an increase in operating pressure. Spray angle increases with increasing operating pressure. The spray angle is decreased by increasing the nozzle height because of gravity. Spray angles are different for different nozzles.
RESUMEN
Background: The management of critically ill obstetric patients presents a unique challenge. Dedicated High Dependency Unit (HDU) and Intensive Care Unit (ICU) for obstetric patients are widely available in India. The data regarding obstetric critical care is invaluable in formulating policy decisions. The objective is to study the profile of cases admitted to obstetric HDU and ICU and to evaluate maternal outcome and co-morbid conditions.Methods: This was a prospective observational study between January 2017 and June 2018.Results: Total number of obstetric admissions was 7966. Total admissions to obstetric ICU were 60. ICU cases accounted for 0.7% of all obstetric admissions and 1.1% all deliveries. Obstetric cases formed 1.6% of total ICU admissions. Number of admissions to HDU was 576. HDU cases accounted for 7.2 % of all obstetric admissions. HDU utilization rate was 11.32%. Hypertensive disorders of pregnancy (n=22, 33.3%), obstetric haemorrhage (n=18, 30%), septic abortion (n=2, 3.3%) were the most common conditions necessitating admission.Conclusions: Hemorrhage was the most common indication for admission to HDU. Delayed identification and referral were the important obstacles. There is a need for early booking at peripheral centres. Introduction of obstetric ICU and multidisciplinary approach has brought down the incidence of maternal mortality in present centre.
RESUMEN
Background: Dilatation and curettage has long been the diagnostic gold standard for abnormal uterine bleeding. However, even a trained gynecological curettes at best 70-80% of the endometrium. Hysteroscopy is gaining acceptability over other diagnostic technique like dilatation and curettage, hysterosalpingogram and ultrasound. The objective of this study is to find out the role of hysteroscopy in abnormal uterine bleeding and to compare hysteroscopy findings with histopathology.Methods: Fifty patients in perimenopausal age group with abnormal uterine bleeding attending JSS Medical College and Hospital Mysore, during the period 1999-2001 were studied by diagnostic hysteroscopy followed by dilatation and curettage.Results: Mean age of the study group was 44.3% years (±2.5 SD). Menorrhagia was the commonest symptom and was found in 68% of the patients. Diagnostic hysteroscopy identified 23 cases as Normal endometrium, 16 cases as endometrial hyperplasia, 3 cases as atrophic endometrium, 4 cases as endometrial polyp, 4 cases as fibroids. Compared with histopathological findings as definitive diagnosis, hysteroscopy correctly picked up 19 cases of (86.9%), normal endometrium, 12 cases of hyperplasia (75%), 3 cases of atrophic endometrium (100%), 4 cases of polyps (100%), and 4 cases of fibroid (100%).Conclusions: Hysteroscopy should be considered as a basic and essential diagnostic procedure in the diagnostic work up of abnormal uterine bleeding.
RESUMEN
Background: Globally 18.6 percent of all births occur by Caesarean Section (CS) and the trend is increasing. In India CS rates have risen from 2.9% in 1992 to 17.2% in 2015. The optimal timing of CS is still being investigated. Data with regard to elective CS and neonatal outcome from India is sparse and this study aimed to obtain the same in the setting of a South Indian Hospital. The objective was to evaluate neonatal outcome and NICU admissions in elective CSMethods: This was a retrospective study conducted at a tertiary care referral hospital and data collected was of deliveries conducted from Jan 2017 to July 2018. All term singleton pregnancies (>37 gestational weeks) scheduled for elective CS were included in the study.Results: A total of 3174 Caesarean Sections were performed during the study period of which 1087 were elective CS and 2087 were done on an emergent basis. Of these elective CS, 425 (39%) were performed at early term (37+0 until 38+6) and 662 (61%) were performed at full term (>39 weeks). Analysis of adverse neonatal outcomes revealed that a significantly higher rate of NICU admission, low birth weight, respiratory complications in newborns delivered at early term than in those delivered at full term.Conclusions: In the present study newborns delivered at 37- 38 weeks of gestation had a higher rate of NICU admission, low birth weight and respiratory complications compared to newborns delivered after 39 weeks of gestation. Neonatal outcome was found to be better in those elective CS done after 39 weeks in comparison to those delivered at early term (< 39 weeks).