Effects of interval training on haemodynamic variables after coronary artery bypass graft: A meta-analysis.

Objective: To assess the combined impact of interval training programme on haemodynamic variables, specifically blood pressure and heart rate, in patients having undergone coronary artery bypass graft surgery. METHODS: The meta-analysis was conducted from October to December 2022, and comprised search on PubMed, MEDLINE, Web of Science, PeDro, EMBASE, Science Direct, Cochrane Central Register of Controlled Clinical Trials, Google Scholar and Scopus electronic databases by two researchers independently for literature published between 2009 and 2020 related to the effects of interval training on coronary artery bypass graft patients. Meta-analysis was then performed to analyse the effects of an interval training on systolic blood pressure, diastolic blood pressure, and heart rate. The meta-analysis was performed in line with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines. RESULTS: Of the 122 studies initially located, 7 were related to the effects of different forms of interval trainings and their impact on systolic and diastolic blood pressure of the patients, and 5 studies analysing the effects of interval trainings on heart rate. Interval training showed mild improvement in decreasing SBP compared to control groups. Standardized mean difference suggested an effect size of -0.226 in random effect model (I2=52.01; p=0.064). Similarly, a small effect size of 0.136 (I2=39.19%, p=0.14) was observed for diastolic blood pressure. Also, there was a small effect size of 0.155 (I2= 28.08, p=0.23) observed for heart rate. Conclusion: Interval training programmes, including high-intensity interval training, low-volume interval training, and aerobic interval training, had a small effect on systolic blood pressure, whereas continuous training protocols had a similarly small effect size on diastolic blood pressure and heart rate.

A Case of Giant Proliferative Periocular Pyogenic Granuloma.

Pyogenic granuloma (PG) is a common vascular anomaly affecting the skin with occasional involvement of mucosa. Ophthalmic surgeons typically encounter these lesions as solitary, bright red, rapidly growing papules following surgery or trauma to the conjunctiva, e.g. chalazion, strabismus, or enucleation surgery. We present a rare and novel case of a disfiguring proliferative & eruptive giant pyogenic granuloma involving both mucosal and non-mucosal tissue of the ocular adnexa in the absence of any previous surgery, trauma, or medical history in a previously fit and well 43-year-old male. We demonstrate the histological features of the lesion following successful management with surgical excision & primary closure. The authors advocate surgery as the gold standard for managing such proliferative lesions ensuring low recurrence rates and histological confirmation for a lesion whose differential diagnoses include malignant eyelid lesions such as keratoacanthoma and squamous cell carcinoma.

Awareness, knowledge and attitude towards breast cancer, breast screening and early detection techniques among women in Pakistan.

OBJECTIVE: To document the knowledge and attitudes of women towards breast cancer, breast screening and early detection techniques. METHODS: This cross-sectional survey was conducted from December 2015 to May 2016 in Karachi and Islamabad, Pakistan, and comprised women aged above 18 years. The survey used breast cancer inventory as a research instrument after piloting and validation. SPSS 20 was used for data analysis. RESULTS: Of the 1,304 respondents, 948(72.7%) were single, 1,082(83%) belonged to the 18-30 age group, 800(61.3%) had Urdu-speaking ethnicity and 794(60.9%) were educated. The prevalence of breast cancer in family was 226(17.33%). Besides, 446(34.2%) had low knowledge regarding the subject, 646(49.5%) appeared welcoming to the idea of breast screening, 1,008(77.3%) indicated their discomfort in discussing the topic, whereas 1,080(82.8%)preferred a female physician. CONCLUSIONS: There was a dearth of knowledge regarding breast cancer among the participants..

Analysis of the glutathione S-transferase genes polymorphisms in the risk and prognosis of renal cell carcinomas. Case-control and meta-analysis.

BACKGROUND: The Glutathione S-transferases (GSTs) genes deletion polymorphisms have been associated with the progression of several cancers. The association studies between the 2 GSTs (GSTM1 and GSTT1) null polymorphisms with the susceptibility to renal cell carcinoma (RCC) have been inconclusive. Therefore, with the inclusion of our own data, we performed a comprehensive meta-analysis to assess the association between these 2 polymorphisms and the risk of RCC. METHODS: A systematic literature search was carried out for studies published in the PubMed, EMBASE, Cochrane library, and Google Scholar from 1997 to December 2014. Results were stated as pooled odds ratios (ORs) for nonparametric data after heterogeneity analysis with 95% CI using fixed effect or random effect model. RESULTS: We systematically selected 13 relevant studies after thorough searches from the databases. Data showed no association between the GSTM1 and the GSTT1 null genotypes and the risk of RCC (OR = 1.01; CI: 0.92-1.11; P = 0.89 for GSTM1 and OR = 1.14; CI: 0.91-1.42; P = 0.25 for GSTT1). No association was found when the data were stratified according to the geographical/ethnic basis, source of control, and the risk factor evaluation. Subgroup analysis of occupational exposure to pesticides showed an inverse association of the active genotypes of both GSTM1 and GSTT1 polymorphisms with the exposed group of RCC (P<0.00001 and P<0.00001, respectively). The combined null genotype of the GSTM1/GSTT1 significantly increased the susceptibility to RCC by 1.4-fold (P = 0.001). This association remained significant for the Asian populations in subgroup analysis (OR = 1.8; CI: 1.30-2.49; P = 0.0004). CONCLUSION: In conclusion, this meta-analysis suggests that the 2 GSTs deletion polymorphisms independently have no association with the risk of RCC. However, combination of both deletions increases the risk of developing the RCC.

Developing a Research Instrument to Document Awareness, Knowledge, and Attitudes Regarding Breast Cancer and Early Detection Techniques for Pakistani Women: The Breast Cancer Inventory (BCI).

There is a general hesitation in participation among Pakistani women when it comes to giving their responses in surveys related to breast cancer which may be due to the associated stigma and conservatism in society. We felt that no research instrument was able to extract information from the respondents to the extent it was needed for the successful execution of our study. The need to develop a research instrument tailored for Pakistani women was based upon the fact that most Pakistani women come from a conservative background and sometimes view this topic as provocative and believe discussing publicly about it as inappropriate. Existing research instruments exhibited a number of weaknesses during literature review. Therefore, using them may not be able to extract information concretely. A research instrument was, thus, developed exclusively. It was coined as, "breast cancer inventory (BCI)" by a panel of experts for executing a study aimed at documenting awareness, knowledge, and attitudes of Pakistani women regarding breast cancer and early detection techniques. The study is still in the data collection phase. The statistical analysis involved the Kaiser-Meyer-Olkin (KMO) measure and Bartlett's test for sampling adequacy. In addition, reliability analysis and exploratory factor analysis (EFA) were, also employed. This concept paper focuses on the development, piloting and validation of the BCI. It is the first research instrument which has high acceptability among Pakistani women and is able to extract adequate information from the respondents without causing embarrassment or unease.