Dental arch characteristics among South Indian twins - A morphometric study

Genetic and environmental factors are essential in occlusal variations and malocclusion and have been of considerable interest to orthodontists. Studies on twin pairs are one of the most effective methods for investigating genetically determined occlusal variables. Many studies have focused on distances between first molars or between canines but malocclusions can also occur in other regions of the dental arch. Aim: To evaluate the characteristics of the dental arch between pairs of Monozygotic (MZ) and Dizygotic (DZ) twins from Southern India. Methods: A random sample of 51 twin pairs (12­18years old) participated in this study. The zygosity of twin pairs was recorded by facial appearance. The occlusion of the first permanent molars was recorded according to Angle's classification. Study models were prepared to assess dental arch characteristics (i.e., arch form, arch perimeter, arch length; intercanine, intermolar width, and teeth size discrepancy). The obtained data was statistically analyzed using SPSS software 19.0. The student's t-test (two-tailed, independent) and Chi-square test was used to determine the significance of studied parameters. Results: Angle's Class I molar relation was more commonly observed followed by the Class II molar relationship among twins. The measured dental arch dimensions did not show a statistically significant difference among twin pairs. The ovoid arch form was commonly observed among Monozygotic and Dizygotic Twins. There was a similarity among MZ and DZ twins in the anterior and overall Bolton's ratio. Conclusion: There were similar occurrences of measured parameters among twins, which showed genetic predominance in the expression of measured dental arch traits

A cross-sectional study of USFDA warning letters issued for cGMP violations pertaining to medical devices

Most of the prior studies concentrated on warning letters issued for clinical investigation, Institutional review board,and infringement of promotional claims, no studies assessed the warning letters issued for infringements of CurrentGood Manufacturing Practice (cGMP) pertaining to medical devices. Hence, there is a need to carry out a crosssectional study of these warning letters. Publically available U.S. Food & Drug Administration (USFDA) letters underthe law of the freedom of Information Act sent to the pharmaceutical company were accessed from the USFDA website.A standard data collection tool (Excel Spreadsheet) with all letters of warning issued from January 2008 to July 2018was developed. Letters have been manually screened. Warning letters related to medical device breaches of cGMPwere screened based on the letter's subject and content. Overall, 669 warning letters issued for medical device cGMPviolations were reviewed between January 2008 and November 2018. From 2008 to 2013, there was a downward trendin the issuance of warning letters. The number of warning letters issued in 2014 was 101, followed by 106 in 2015,as the USFDA focused more on data integrity issues, while the number decreased to 53, 27, and 19, respectively, in2016, 2017, and 2018. The highest number of warning letters were issued to manufacturers located in the USA (379),followed by Canada (52), and China (37). Section 820.30 of Title 21 CFR was found to be most violated with 603infringements. This section represents the design control requirements for cGMP. Class 2 type of medical devices werefound to be most violated (82%), followed by Class 3 with 7%. Only 32% of the companies responded to the warningletters although 52% Not Issued the closeout letter followed by 16% of the letters were considered as non-applicableletters. With the time, scientific developments and increased awareness of both regulatory authorities and industries/academic organizations, overall improvement are observed with significant decrease in the number of warning letters.

A study on pregnancy outcome in patients with first trimester vaginal bleeding

Background: Vaginal bleeding is a common obstetric problem and a cause of anxiety and worry both to patients and the Obstetrician. The common cause of bleeding in 1st trimester include various types of abortion, ectopic pregnancy and molar pregnancy. This study was conducted to assess the maternal and perinatal outcome in pregnant women who present with first trimester vaginal bleeding.Methods: A Prospective study (Longitudinal study) among pregnant women presenting with First trimester bleeding was conducted for a period from November 2017 to Jan 2019 at Mysore Medical College and Hospital 200 subjects were included into the study by Multiphasic sampling method using a structured questionnaire to collect the data.Results: The study observed that among 200 subjects who were included in the study 123 (61.5%) were non-viable pregnancy and 67 (38.5%) were viable pregnancy. Among 67 viable pregnancy only 30 (47%) had no obstetrical complications, 11 (17.1%) aborted and others had problems of PROM, Preterm labour, Placenta previa, IUGR and IUD.Conclusions: It can be concluded that first trimester bleeding is a predicting factor for obstetric and perinatal complications during pregnancy. Hence it is necessary to increase the knowledge of pregnant women in this regard for closer care. It is also important factor for clinician to be attentive towards first trimester bleeding in providing clinical interventions for the continuation of pregnancy and also reducing the fetal complications in these high-risk pregnancies.

A clinical study of maternal outcome among pregnant mothers suffering from preeclampsia with thrombocytopenia

Background: The thrombocytopenia in preeclampsia is mild to moderate, but severe thrombocytopenia can occur. Patients with eclampsia were at even greater risk for developing severe thrombocytopenia. And more likely to have HELLP syndrome, which is a subset of preeclampsia. Thrombocytopenia is a key and necessary component of this syndrome. The objective of the present study was to observe a clinical study of maternal outcome among pregnant mothers suffering from preeclampsia with thrombocytopenia.Methods: A Hospital based Study was conducted at Mysore Medical College from January 2018 to December 20180 in the department of Obstetrics and gynecology. A total of 100 cases of Pregnancy from the records / case sheets of pregnant women with pregnancy induced hypertension admitted in the labor ward of the department of obstetrics and gynecology, Mysore Medical College, Mysore, Karnataka, India.Results: Majority of the study subjects in present study were aged between 21-25 years (42%) followed by <20 years (26%). Nearly 55% of the study group were prim parous. In the above table out of 100 cases included in the study, 28 and 40 cases presented with mild and severe pregnancy induced hypertension, 8 cases were diagnosed as eclampsia and 24 cases presented with HELLP syndrome. The association between the mode of delivery and the variants of PIH was found to be statistically not significant. The Association between Mode of delivery and gestation weeks among the eclampsia cases was found to be not significant.Conclusions: Thrombocytopenia in pregnancy induced hypertension carries a risk for both the mother and her fetus. The associated causes like abruption, retain dead fetus, septicemia and disseminated intravascular coagulation aggravates the complication for thrombocytopenia.

Chondrosarcoma of Maxilla: A Case Report.

Chondrosarcomas are a rare malignant neoplasm of head and neck region. The exact origin of Chondrosarcoma is obscure; it may be found developing in normal cartilage, chondromas or osteochondromas. Chondrosarcoma has a slow clinical evolution. The symptoms are usually non-specific and may defer depending on the location of the tumor. Resorption and exfoliation of teeth sometimes occur. It may mimic the appearance of osteosarcoma on radiographs. Diagnosis of the lesion is mainly based on the histopathological appearance. An uncommon case of low-grade chondrosarcoma of the maxilla in a 50-year-old male patient is reported, the clinical and histopathological features are discussed.

Agenesis of Isthmus of thyroid gland with presence of pyramidal lobe and levator glandulae thyroideae.

A wide range of morphological and developmental variations of thyroid gland like hypoplasia, ectopic thyroid tissue, hemiagenesis or agenesis of thyroid gland has been reported. Out of these agenesis of the thyroid isthmus is a very rare congenital anomaly. Thyroid isthmus agenesis does not manifest clinical symptoms, and it can be confused with other thyroid pathologies. Also the presence of levator glandulae thyroideae and its anatomical variations gain importance in the pathologies which are related to thyroid gland and their treatment modalities. We hereby, report the absence of isthmus and presence of levator glandulae thyroideae and pyramidal lobe in a middle aged male cadaver. The present case report is an attempt to highlight the implications of variation of thyroid gland from diagnostic, phylogenetic and functional perspectives.

Antibiotic Susceptibility Pattern from Pathogens Causing Acute Pyogenic Meningitis in a Teaching Hospital, South India.

Background and Objectives: Acute pyogenic meningitis is one of the most serious infections in infants and children. It is associated with serious complications and risk of morbidity and mortality. The purpose of present study was to identify the pathogen in acute pyogenic meningitis and to determine its antibiotic susceptibility pattern. Methods: Present study was undertaken for a period of one year from July 2009 to June 2010 included 100 CSF samples of clinically suspected acute pyogenic meningitis cases in children below 12 years. The samples were subjected to Gram’s stain, culture and antibiotic sensitivity test. The cases positive in either of Gram stain or culture were diagnosed as acute bacterial meningitis cases. Results were tabulated and antibiotic sensitivity pattern was compared. Results: Of the 100 cases studied, 26 cases were diagnosed as acute bacterial meningitis. Gram’s stain positivity was 73% (19/26 cases), culture positivity was 100%. The most common organism isolated in the study was Streptococcus pneumoniae, followed by Haemophilus influenzae, Escherichia coli and Klebsiella pneumoniae. Aminoglycosides, cefotaxime and cotrimoxazole showed high sensitivity. Interpretation and conclusion: Though Gram stain is very essential in diagnosis of meningitis, it may miss some cases. Culture and latex agglutination tests overcome this disadvantage. Streptococcus pyogenes still remains predominant pathogen. Antibiogram of the bacteria causing meningitis is also slowly undergoing a change. This calls for change in the empirical therapy for bacterial meningitis cases.

Study of variations in medial sural cutaneous nerve, lateral sural cutaneous nerve and peroneal communicating nerve.

The sural nerve complex includes the Medial sural cutaneous nerve (MSCN), Lateral sural cutaneous nerve (LSCN), Peroneal communicating nerve (PCN) and Sural nerve. The sural nerve is the most frequently used donor nerve for peripheral nerve grafting. LSCN can be an alternative to sural nerve in situations requiring a limited length of nerve graft material, the peroneal communicating nerve may also be harvested. Fifty lower limb specimens were dissected and data was collected. The study included 16 male and 9 female cadavers. MSCN was observed in all 50 specimens, out of which 74% specimens had normal course and 22% had a transmuscular course. LSCN was present in 82% of specimens. PCN was arising from Common Peroneal Nerve (CPN) directly in 16% and as a common trunk with LSCN in 14% of specimens. PCN was absent in 28% of cases. So knowledge of variation in these nerves will help the surgeons while considering these nerves for nerve grafting.

Vaginal Leiomyoma: Unusual Case Presentation.

Vaginal leiomyomas are rare to exist as a primary tumor of vagina. Approximately 300 cases have been reported in world literature. They usually arise from anterior vaginal wall and are firm to hard in consistency with varied clinical presentations. Here, we report a case of vaginal leiomyoma presenting as mass per vagina, diagnosed postoperatively with the help of histopathological and immunohistochemical studies.