Comparative evaluation of rotational stability and visual outcome of toric intraocular lenses with and without a capsular tension ring

Purpose: To evaluate the rotational stability of toric intraocular lens (IOL) when co-implanted with a capsular tension ring (CTR) as compared to that of a toric IOL without a CTR. Methods: This was a prospective randomized clinical trial performed in a tertiary care centre in India. Fifty adult human eyes with visually significant cataract and regular corneal astigmatism ?1.5D divided into two groups of 25 eyes each, A and B by simple randomization. Eyes with corneal pathology, lens subluxation, and a specular endothelial cell count <2000/mm2 were excluded from the study. The eyes in both the groups underwent standard phacoemulsification and were implanted with a toric IOL. In Group A, a CTR was put in the bag before IOL implantation. The groups were called for follow-up on day 1, 1 week, 1 month, and 3 months, postoperatively. The axis of the toric IOL on each visit was measured by slit lamp imaging in retroillumination and analyzed digitally. Results: Mean rotation of toric IOL at 3 months postoperatively was 1.85 ± 1.72° in Group A and 4.02 ± 2.04° in Group B. The difference was statistically significant (P = 0.003). Conclusion: Coimplantation of a CTR is a safe and effective technique for ensuring better rotational stability of toric IOLs

Nebulization by Isotonic Magnesium Sulphate Solution with Salbutamol Provide Early and Better Response as Compared to Conventional Approach (Salbutamol Plus Normal Saline) in Acute Exacerbation of Asthma in Children.

Asthma attacks are serious respiratory problem that can be lethal when not treated appropriately. Till today the main stay of therapy is short acting ß2-agonist. Unfortunately in acute asthma episodes this is not enough to relieve the bronchospasm and reduce dyspnea. The shortcoming of ß2-agonist therapy has resulted in the use of a variety of other treatment in the management of acute asthma. The use of magnesium sulphate is one of the recent treatment options. This study was done to compare the efficacy of nebulized salbutamol with magnesium sulphate versus salbutamol with normal saline in the treatment of acute exacerbation of asthma in children. This randomized controlled trial was carried out among 60 patients with acute exacerbation of bronchial asthma fulfilling the inclusion criteria, admitted in the department of Paediatrics, Mymensingh Medical College Hospital over a period of one year from January 2009 to December 2009. They were distributed randomly, 30 patients received nebulized salbutamol (0.15mg/kg; minimum dose 2.5mg) with 2.0 ml of isotonic magnesium sulphate solution and another 30 patients received the same dose of salbutamol with 2.0 ml of normal saline on 3 occasions at 20 minute intervals. With single dose of nebulization in the magnesium sulphate with salbutamol group, by 20 minute almost all 26 (86.7%) patients achieved at least 60% of predicted PEFR. Within 20 minute from control group none could achieve 60% of predicted PEFR. After second dose of nebulization control group started achieving 60% of predicted value. Regarding response criteria, with second dose of nebulization, at 40 minute 16 (53.3%) patient from magnesium sulphate with salbutamol group showed good response (PEFR>70% predicted). But within the first 40 minutes, none could show good response in control group. With 3rd dose of nebulization all from magnesium sulphate group showed good response but even at 60 minute, 5 (16.7%) patients in control group failed to be included as good responder. In conclusion, nebulization by isotonic magnesium sulphate solution with salbutamol provide early and better response as compared to conventional approach (salbutamol plus normal saline) in acute exacerbation of asthma in children.

Changes in Hematological Indices in Different Stages of Chronic Renal Failure.

The study was carried out to observe some aspects of hematological changes like Hb concentration, PCV and TC of RBC in different stages of Chronic Renal Failure(CRF) patients suffering from anemia. For this purpose, 65 male CRF patients with anemia and 25 apparently health male (control) subjects of age ranged from 30-50 years were selected randomly from BSMMU out patient department. Hematological parameters and renal creatinine clearance were estimated by usual laboratory technique. Data were analyzed statistically by ANOVA and Pearson’s correlation coefficient test. Among the CRF patients 15 were mild, 25 were moderate and 25 were severe CRF patients with anemia. In this study, the mean Hb concentration, PCV and total count of red blood cells were significantly lower in three stages of CRF patients with anemia compared to those of healthy subjects. Again, all of these hematological values were significantly (P< 0.001) lower in moderate and severe CRF patients compared to mild cases and also in severe cases than those of moderate CRF cases with anemia. All the Hematological parameters showed positive correlation with creatinine clearance in all three stages of CRF and it was statistically significant in moderate and severe group. From the present study it may be concluded that CRF patients with anemia had lower hematological indices and the degree of changes depend on severity of renal failure.

Mid-arm circumference: an alternative measure for screening low birth weight babies.

Birth weight is a reliable and sensitive indicator for predicting the immediate or later outcome of a newborn child. In a developing country like Bangladesh, where more than 75% of deliveries occur in rural community and are mostly attended by Traditional Birth Attendants (TBA) or relatives, birth weight cannot be recorded mainly due to paucity of suitable weighing scale. To overcome the problem associated with weighing the newborn, it was considered justified to find out other simpler measurements that could be used as substitute of weighing, in order to identify low birth weight babies. A cross sectional, analytical, hospital based study was conducted at Dhaka city on 560 newborn babies born during a period of 18 months in 2000-2001 to examine relative validity of mid-arm circumference as a screening measure of low birth weight babies. Mid-arm circumference, length, head circumference, chest circumference, abdominal girth, and calf circumference were considered. The study showed a strong correlation (p < 0.001) between mid-arm circumference (r = 0.956) and birth weight, followed by calf circumference (r = 0.946) and birth weight. Other parameters were also strongly correlated (p < 0.001). The study showed that in identifying newborns of <2500 gm a mid-arm circumference of <9 cm had the best sensitivity (96.2%) and specificity (97.3%). A value of <8 cm and <6.8 cm for mid-arm circumference showed highest validity for picking up newborns weighing <2000 gm and <1500 gm respectively. Measurement of arm circumference is easier, convenient and statistically superior to other anthropometrical parameters in this work. The researchers recommend designing of simple 'Tri-colored tape' for early detection of 'At Risk' newborns in rural community for their timely management.

Correlation of anthropometric measurements of mothers and their newborns.

This cross-sectional study was designed to assess the influence of the nutritional status of the mother upon the anthropometric measures of their babies. It was conducted at three different hospitals of Dhaka city during a short period of 5 weeks in 1992. One hundred and fifty mothers with their newborns were studied to correlate their anthropometric measurements. Weight, height/length and mid-arm-circumference were measured. The study showed that the correlation between weight of mother and weight of her newborn was stronger than that between heights (length) and mid-arm-circumferences of the mothers and the newborn. Correlation between mid-arm-circumference of mother and newborn was statistically insignificant whereas correlations of other variables were statistically significant. Height of mother and length of newborn daughter were less well correlated than height of mother and length of newborn son which showed relatively significant correlation (p < 0.05). The study indicates that the anthropometric measures of the newborn babies might be an outcome of the nutritional status of the mother.

Self-assessment of confidence of internee doctors in performing common surgical operations.

A total of 140 internee doctors who had just completed or were about to complete their internship training from four leading Medical College Hospitals of Bangladesh were asked to fill up a pre-tested structured questionnaire. Of them 115 were male and 25 were female. All the participants had 6 months compulsory training in Medicine, 123 had 6 months training in Surgery and 17 had 6 months training in Obstetrics-Gynecology. Over 50% doctors expressed lack of confidence in performing ligation, vasectomy, splinting simple fractures, venesection, episiotomy, hydrocele operation, circumcision, proctoscopy and inguinal herniorrhaphy and expressed the need for further training in those procedures. Only 10% and 1.43% internees stated that they were confident about performing ligation and vasectomy independently. Internees from Chittagong Medical College Hospitals expressed their inability to perform ligation and/or vasectomy independently. So it was recommended that surgical training should be made mandatory for all internee Doctors with extension of the Internship period by at least 6 months. Emphasis should be laid on training in vasectomy and ligation. A pre-registration evaluation test may be introduced at the end of their training period.

Male factors in infertility--a preliminary report.

Findings in 325 consecutive primary seminal analysis done at the Infertility Treatment Centre of IPGMR, are discussed. The clinical profile of the infertile couples was recorded. Semen was examined for quantity, sperm density, motility and morphology. An attempt was also made to correlate past illnesses with the quality of semen. 65 patients (20%) showed azoospermia, while 29 (8.9%) showed sperm count of less than 10 million/ml. History of past illnesses which contribute to azoospermia/oligospermia was obtained in 46% of azoospermia cases compared to only 10% in subjects showing sperm count of over 10 million/ml. Commonest association between azoospermia and past illness was found in the case of small-pox, where out of 31 subjects with past history of small-pox, 15 showed complete azoospermia, one showed sperm density of less then 10 million/ml.