The effect of surgical management of endometrioma on the IVF/ICSI outcomes when compared with no treatment? A systematic review and meta-analysis.

OBJECTIVE: To assess the impact of surgical management of endometrioma on the outcome of assisted reproduction treatment (ART). DESIGN: A systematic review and meta-analysis. SETTING: Department of reproductive medicine at teaching university hospital, UK. PATIENTS: Subfertile women with endometrioma undergoing ART. INTERVENTIONS: Surgical removal of endometrioma or expectant management. MAIN OUTCOME MEASURES: Clinical pregnancy rate, pregnancy rate, live birth rate, number of oocytes retrieved and number of embryos available and ovarian response to gonadotrophins. RESULTS: An extensive search of electronic databases for articles published from inception to September 2016 yielded 11 eligible studies for meta-analysis. Meta-analysis was conducted comparing surgery versus no treatment of endometrioma. There were no significant differences in pregnancy rate per cycle, clinical pregnancy rate and live birth rate between women who underwent surgery for endometrioma and those who did not. CONCLUSION: Current evidence suggests that women with endometriosis-related infertility have similar cycle outcomes to other patients going through ART. It is pertinent for clinicians to assess the risks of surgical intervention on ovarian reserve prior to initiating therapy.

Malignancy in Solitary Thyroid Nodule.

This prospective study was done to find out the relative frequency of the malignancy in cold solitary thyroid nodules with other solitary thyroid nodules (hot and warm). This study was carried out in the Department of General Surgery and Otolaryngology-Head & Neck Surgery, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh from January 2011 to February 2012. One hundred (100) patients with clinically and ultrasonographically diagnosed as solitary thyroid nodules were included. Out of them, 52% of patients were in the third and fourth decades of life and 26% were in the second decade of life. In sex distribution, females were more affected than males and female: male ratio was 2.1:1. All patients presented with neck swelling, which moved with deglutition and 18% presented with palpitation. Solitary nodule was present in about 60% in the right lobe and 32% in the left lobe. In 72% patients, radioiodine uptake was low; in 25% patient's radioiodine uptake was normal. The thyroid scan revealed 72% cold nodule, in 25% patients radioiodine uptake was normal. On Ultrasonographic study, 60% were solid, 28% cystic and others mixed. Each and every patient of this series was treated surgically. Mostly (73%) lobectomy was done. Total thyroidectomy was done in 16% cases. On histopathology, 56% were colloid nodule, 28% were adenoma and 16% were carcinoma. Among the 16% malignant patients, majority of the patients had their age between 21-48 years. Histopathological types were mostly papillary (50%). Complications of surgery were mostly hoarseness of voice (5%), hematoma (4%), infection (2%) and hypoparathyroidism (3%). In this study, more malignant cases (20.83%) were found in cold solitary nodules.

Methods employed to overcome difficult embryo transfer during assisted reproduction treatment.

PURPOSE: Multiple steps, at both scientific and clinical level, are involved in assisted reproduction technology (ART). Optimization of each of these steps contributes to maximize the success of ART. Embryo transfer is one of the vital steps in ART. An easy embryo transfer increases the success of ART. Adequate training is required to undertake embryo transfer, but anatomical difficulties in completing this procedure alter the success of treatment. Difficult embryo transfer is challenging for clinicians but has an overwhelming negative impact on patients. Difficult embryo transfer may cause cervical or endometrial trauma with uterine contractions which can lead to unsuccessful implantation and poor outcome after ART. METHODS: Literature review of published material looking at all interventions that were employed to overcome difficult embryo transfers during ART. RESULTS: We identified 5 methods (17 studies) were employed to overcome difficult embryo transfer which are: Hysteroscopic methods in 4 studies (2 case reports, 2 case series). Malecot catheters after hysteroscopic evaluation were used in 2 studies (1 case report, 1 case series). Dilators including hygroscopic dilators were used in 2 studies (1 case report, 1 case series) and mechanical dilators were used in 3 studies (2 case series, 1 RCT-patients 367). Intrafollopian transfer was reported in 1 case report. Transmyometrial embryo transfers were reported in 5 studies (2 case reports, 2 case series, 1 RCT). CONCLUSION: There were only two randomized controlled studies (RCTs) identified in the review. All other were either case series or case reports. We found that there was no uniform classification or grading of difficulty of embryo transfer in the literature. A grading system has been suggested in this review. We recommend that there should be a consensus guideline formulated for interventions to overcome difficult embryo transfer. A large multicenter randomized controlled study is required to compare different methods for women with difficult embryo transfer.

Controversies in pancreas transplantation.

Pancreas transplants are now highly effective for patients with diabetes mellitus. Improvements in outcomes have primarily been due to significant reductions in technical failures and immunological graft loss. In this short review we discuss three areas of controversy in the field of pancreas transplantation. Notwithstanding the controversies we have highlighted, in line with the American Diabetic Association position statement, simultaneous pancreas-kidney transplants and pancreas after kidney transplants should be routine for diabetic kidney recipients, and a pancreas transplant alone is appropriate for non-uremic labile diabetic patients.

Carcinoma Tongue--Clinicopathological Presentation.

This prospective study was done to observe the diversity of clinical presentation of carcinoma of tongue and to study the pathological variety of carcinoma of tongue and was conducted in the Department of General Surgery and Otolaryngology and Head Neck Surgery in Bangabandhu Sheikh Mujib Medical University, Dhaka Medical College Hospital on 50 patients from January 2011 to July 2013. In this series highest number of patients were middle aged (36%). Male female ratio was 2:1. Average socioeconomic conditions of the patient were poor (68%). Betel nut and leaves chewing (88%) and smoking (56%) habits were commonly practiced for more than 10 years among the patients. Depending on site of involvement, variation in presenting symptoms has been observed. Oral tongue carcinoma mostly was presented with tongue lesion, pain and dysphagia where as the carcinoma of base of tongue commonly was presented with dysphagia, lump in neck. Lateral border of tongue (60%) was seen commonly involved. Ulcerative lesion (56%) predominantly was found in tongue lesion. Eighty percent (80%) of cases had no palpable Lymph node. Only few patients were found with Lymph node metastasis and most of them had carcinoma in base of the tongue (75%). Most of the carcinoma was well differentiated Squamous cell carcinoma. Carcinoma of tongue in our study commonly found in middle aged male patients. Variation of symptoms has depended on anatomical site involved. Most of the carcinoma was well differentiated Squamous cell carcinoma. Carcinoma other than squamous cell was not found.

Short Term and Long Term Outcome of Laser Treatment in Patients with Chronic Anal Fissure.

An anal fissure is a small cut or tears in the skin or mucosal lining of anal passage or at the opening of anus. It affects the quality of life due to severe pain and sometimes causes bleeding also while passing the stool. It can affect people of any age. In recent time, laser treatment creates a new era for management of anal fissure. It is easier, safer, faster for the treatment of chronic anal fissure. The aim of the study was to evaluate short term and long term clinical and surgical outcome of laser treatment. In this prospective study total 82 patients with chronic anal fissure underwent laser treatment from July 2019 to June 2020 at Anower Khan Modern Medical College Hospital and Care Medical College Hospital, Bangladesh. All the patients who completed their 1.5 months and 6 months follow up were included for the study and their data was analyzed. Out of 82 patients, 71 were females and 11 were male. The mean age 40.31±9.23, mean operative time was 15.0±10.0 minutes. Mean hospital stay 24.35±1.23 hours (1 day). Mean healing time was 14.03±12.04 days. All patients were followed upto at outpatient clinic 1.5 and 6.0 months postoperatively. This study shows that laser treatment is a simple, safe, and effective procedure to treat the anal fissure with a low rate of complications. It can be treated as an effective treatment for patients with chronic anal fissure. However, this procedure has some limitations.

Closure of Anal Fistula with Laser- FiLaC™: a Novel Sphincter-Saving Procedure for Complex Fistula In-Ano.

There are several surgical options described for the treatment of anorectal fistulas, specially in complex cases where recurrence rates and the possibility of postoperative complications are still high. Laser- FiLaC™ has been described in this study as an option in the management of anorectal fistula. The aim of this study was to assess the novel radial laser probe treatment in complex fistula in-ano and report the success rate and recurrence rate. We studied retrospectively 56 patients who, according to our hospital patient records, underwent radial laser probe surgery between March 2019 and August 2020. In a mean follow-up time of 6 months, the success rate at 2 months was 86.0%. Most operations were done under spinal anesthesia. The recovery time was rapid and median sick leave was 7 days. Of those initially successfully treated, 3.0% developed a recurrence. Altogether 4.0% of the patients underwent a re-operation. There is a good success rate using FiLaC™ treatment. FiLaC™ is very effective in treatment of complex fistula and as well as recurrence of fistula. It has a short hospital stay and as well as it is painless surgical technique that should be largely used in our country.

Reduction Mammaplasty: Experience in Context of Bangladesh.

There are many women in Bangladesh who suffer from chronic shoulder pain, back and neck pain, nerve pain, and other difficulties due to large breasts but most of them are not keen to get rid of their problems. Most women in this country are afraid from surgery and they are not even aware about their body shape and images. Recently, very few of them are coming to the door of surgeons with enlarged breast difficulties. A study was conducted on reduction mammaplasty regarding experience in the context of our country. Few of the patients were motivated among many who have problems of the huge breast and perform reduction mammaplasty. The paper addresses the experience of reduction mammaplasty. The study among 8 patients was performed in, Anower Khan Modern Medical College and Hospital and Care Medical College and Hospital during the period of Octy 2018 to January 2021. The patients underwent reduction mammaplasty over a 2.5 years period were identified and reviewed for patients satisfaction rate, religious issues, shyness, Family restrictions, socio economic condition, lack of awareness, risk factor, symptom relief, limitation and complication rate. Rate of complications was from 6.5% to 22% for reduction mammaplasty, whereas reported patient satisfaction rates range from 85.0% to 95.0%. In the study, reported rates of symptom improvement range from 80.8% to 94.6%, religious issues about 90.0% to 95.0%, Shyness 80.0% to 87.5%, family restrictions 80% to 87.5%, socio economic condition (High Class n=5, Upper Middle Class n=3), risk factor 70.0% to 80.0%, but in regard to psychological well-being there are tremendous outcomes. Reduction mammaplasty has had excellent patient satisfaction levels. However, a very few complications may occur even in the most suitable candidate. Skilled and experienced surgeons, enriched healthcare infrastructures, meticulous pre-operative planning, gentle tissue handling and anticipatory post-operative care will reduce the incidence of adverse results.

Fish-tail Plasty: A Secure Technique to Enhance Cosmesis at the Lateral End of Mastectomy Scar and Prevent Dog Ear.

Mastectomy is very common surgical procedure for breast cancer. The closure of transverse elliptical mastectomy incisions has been represented with numerous modifications since 1915. The technical challenge is to avoid a fold of skin dogging laterally ("dog-ear"). This might lead to off future discomfort and poor cosmetic result. However, various surgical techniques are reported to tackle this lateral dog ear, there is no standardized technique. We therefore conduct a systematic review of the surgical techniques with the aim of comparing the merits and limitations of every technique. The comparative study among 72 patients was performed in Bangabandhu Sheikh Mujib Medical University, Anower Khan Modern Medical College & Hospital and Care Medical College & Hospital, Bangladesh from July 2017 to January 2020. Patients were divided randomly into two groups: Group I underwent fishtail technique group (36 patients), Group II underwent modified suturing technique group (36 patients). The follow up periods were 1 month and 3 months post-operatively for determination of the presence of dog ear and patient's satisfaction regarding cosmetic outcome and comfortability. Incidence of dog ear in fish-tail plasty group patients was less than that for Group II yet the difference is not significant less (p value 0.001). In consideration of patient satisfaction, doctor satisfaction and patient comfortability were significantly higher in Group I than Group II (p value 0.476 and 0.001 respectively). Fish-tail plasty was significantly better in patient satisfaction, comfortability and doctor satisfaction than modified suturing techniques and it might be recommended following mastectomy in obese patients for improving cosmesis and avoiding discomfort due to redundant skin.

Inversin, a novel gene in the vertebrate left-right axis pathway, is partially deleted in the inv mouse.

Visceral left-right asymmetry occurs in all vertebrates, but the inversion of embryo turning (inv) mouse, which resulted following a random transgene insertion, is the only model in which these asymmetries are consistently reversed. We report positional cloning of the gene underlying this recessive phenotype. Although transgene insertion was accompanied by neighbouring deletion and duplication events, our YAC phenotype rescue studies indicate that the mutant phenotype results from the deletion. After extensively characterizing the 47-kb deleted region and flanking sequences from the wild-type mouse genome, we found evidence for only one gene sequence in the deleted region. We determined the full-length 5.5-kb cDNA sequence and identified 16 exons, of which exons 3-11 were eliminated by the deletion, causing a frameshift. The novel gene specifies a 1062-aa product with tandem ankyrin-like repeat sequences. Characterization of complementing and non-complementing YAC transgenic families revealed that correction of the inv mutant phenotype was concordant with integration and intact expression of this novel gene, which we have named inversin (Invs).

Endoluminal Ultrasonography versus Computed Tomography for Locoregional Staging of Carcinoma Stomach.

Curative surgery remains the mainstay treatment of carcinoma stomach till to date. Preoperative accurate diagnosis of the depth of tumour invasion (T) and nodal involvement (N) in stomach cancer is important in determining the choice of an optimal therapeutic approach. Endoluminal ultrasonography (EUS) is considered as most reliable tools for assessing locoregional staging as it can overcome bones and air barrier on the other hand computed tomography (CT) has increased its' efficacy greatly after introduction of extreme multi-detector and phase-contrast CT. The objective of this study was to compare the accuracy of T and N staging with EUS and CT by comparing with postoperative histopathology in stomach carcinoma. This cross-sectional observational study was conducted in the department of General Surgery, Bangabandhu Sheikh Mujib Medical University (BSMMU), Bangladesh from August 2019 to July 2020. Forty five (45) patients who underwent curative stomach resection surgery due to carcinoma of stomach were enrolled in this study. All patients were investigated by EUS and CT preoperatively to assess locoregional staging. Then patients underwent stomach resection surgery and specimen sent for histopathology. EUS had sensitivity 80.0% to predict T staging but specificity 60.0% and the overall accuracy was 68.89%. CT result showed sensitivity 59.38% to predict T staging but specificity 46.15%, and the overall accuracy was 55.56%. EUS had 65.63% sensitivity to predict nodal involvement but specificity 61.54% and the overall accuracy was 64.44%. CT had 83.33% sensitivity to predict nodal involvement but specificity 55.56% and the overall accuracy was 77.78%. EUS is more accurate than CT in T staging but CT is more accurate than EUS in the N staging of carcinoma stomach. So EUS and CT both should be used as a diagnostic tool for preoperative locoregional staging of carcinoma stomach.

LASER Haemorrhoidoplasty versus Stapler Haemorrhoidopexy: A Prospective Comparative Study.

LASER Haemorrhoidoplasty (LH) is a novel procedure in modern medical science. It is a no cut, painless and bloodless clinical procedure with comparatively fewer complications in comparison to Stapler Haemorrhoidopexy (SH) for the treatment of grade III-IV haemorrhoids. It is very applicable surgical procedure at shrinking the terminal branches of haemorrhiodal arteries with fewer complications than Stapler Haemorrhoidopexy (SH). The aim of the study was to compare LASER Haemorrhoidoplasty (LH) with Stapler Haemorrhoidopexy (SH). The comparative study was performed in Bangabandhu Sheikh Mujib Medical University (BSMMU), Anower Khan Modern Medical College and Hospital and Care Medical College and Hospital, Dhaka, Bangladesh from August 2019 to July 2020. A total of 84 patients with grade III-IV haemorrhoids were allocated into two groups: LASER Haemorrhoidoplasty (LH) and Stapler Haemorrhoidopexy (SH) with 42 patients in each group prospectively. Comparative results and post-operative follow up periods were 4 months. The mean operative time was 28.6min (LH) and 36.2min (SH) (p=0.0006). The average blood loss was 6.42ml (LH) and 12.6ml (SH) (p<0.05). The mean hospital stay 18.36 hours (LH) and 28.40 hours (SH) (p<0.05). Mean postoperative pain score (VAS) at 12 hours was 3.8 (LH) and 6.81 (SH) (p<0.05), at 24 hours was 2.6 (LH) and 4.6 (SH) (p<0.05), at 1 week was 0.46 (LH) and 0.88 (SH) (p=0.05) and at 3 months 0.04 (LH) and 0.10 (SH) (p=0.401). Complications were found in (2.4%) patients ≤1 week in the (LH) group 7(16.7%) in the (SH) group which was statistically significant (p<0.05) between the two groups. Patients with haemorrhoids treated with LASER Haemorrhoidoplasty had a better outcome than stapler haemorrhoidopexy in terms of early postoperative pain as well as complications and was associated with a shorter hospital stay and early return to work. LASER Haemorrhoidoplasty was most effective and alternative to the popular stapler Haemorrhoidopexy for grade III-IV haemorrhoids.

Short Term and Long Term Outcome Following Stapled Haemorrhoidopexy.

Bleeding per rectum is one of the most alarming conditions for any patient. Haemorrhoids are a common cause of bleeding in anorectal region. Conventional Haemorrhoidectomy is associated with significant pain & morbidity so much so that patient feared of and reluctant to undergo surgery. In 1998, introduction of stapled haemorroidopexy by Longo represented a radical change in the treatment of haemorrhoids. The aim of this prospective study was to evaluate short term & long term clinical & surgical outcome of stapled haemorrhoidopexy. A sample of 130 patients with symptomatic second-, third- & fourth- degree haemorrhoids underwent stapled haemorrhoidopexy from January 2013 to December 2016 at Care Medical college & Hospital & Fast care Hospital, Dhaka. Out of these 90 patients who completed their one year follow up was included for the study & their data was analyzed. Eighty percent of patient was females & the mean age 45 (25-75 years), Mean operative time was 35 minutes (25-70 minutes). Mean hospital stay 1 day (1-2 days). Intraoperative suture was 6 and incomplete doughnut 9. Use of analgesics 5 days. All patients were followed up to at outpatient clinic 12 months postoperatively. Stapled haemorrhoidopexy for haemorrhoids is an efficient procedure with less post operative pain, lower complication rates and better patient compliance & satisfaction.

Landcover classification in MRF context using Dempster-Shafer fusion for multisensor imagery.

This work deals with multisensor data fusion to obtain landcover classification. The role of feature-level fusion using the Dempster-Shafer rule and that of data-level fusion in the MRF context is studied in this paper to obtain an optimally segmented image. Subsequently, segments are validated and classification accuracy for the test data is evaluated. Two examples of data fusion of optical images and a synthetic aperture radar image are presented, each set having been acquired on different dates. Classification accuracies of the technique proposed are compared with those of some recent techniques in literature for the same image data.

Ligation-free gene synthesis by PCR: synthesis and mutagenesis at multiple loci of a chimeric gene encoding OmpA signal peptide and hirudin.

A unique kination and ligation-free method that allows de novo synthesis of a gene through a novel application of polymerase chain reaction (PCR) involving stepwise elongation of sequence (SES) is described. SES-PCR is simple and efficient. Optimal utilization of nucleotides, ability to use only partially purified oligodeoxyribonucleotides, and elimination of kination and ligation of intermediates make SES-PCR-mediated gene synthesis more economical in terms of time, labour and money. Site-directed mutagenesis and/or gene fusion by SES-PCR is not limited by the prior availability of the gene(s) in question. The potentials of this novel method in gene synthesis, mutagenesis at multiple loci of DNA and gene fusion have been demonstrated using a chimeric gene encoding fusion between OmpA signal peptide and hirudin, as an example. The SES-PCR product was cloned and sequencing of positive clones demonstrated the presence of genes with expected sequence and bearing only the desired mutations. A nearly 100% efficiency of mutation was easily achieved by the design of the method.

Recombinant enrichment by exploitation of restriction sites with interrupted palindromes: design, synthesis and incorporation of zero-background linkers in cloning and expression vectors.

A universal approach for improving the efficiency of cloning through a selective enrichment of recombinants has been developed. This was achieved by using novel polylinkers or multiple cloning sites (MCS) termed zero-background linkers (ZBL). These MCS have short-cutter site(s) incorporated in the wobble portion of the recognition sequence of the long-cutter(s) in such a fashion that cloning at the short-cutter site disrupts the continuity of the long-cutter-specific sequence. Consequently, digestion of the ligation mixture with the long-cutter, prior to transformation, essentially eliminates the insert negative clones from transformants. The usefulness of such background removal has been illustrated through the design and synthesis of a model ZBL molecule and then its incorporation into various popular cloning and expression vectors. We demonstrate that replacement of the residing MCS of a vector with ZBL leads to enhanced cloning efficiency, as evidenced by the marked increase in the ratio of recombinants to non-recombinants. Such vector improvement is nearly universal as zero backgrounding is an add-on feature and can be adapted to practically any vector system, without having to alter the essential features of the parent vectors.

Molecular cloning and functional expression of a novel potassium channel beta-subunit from human atrium.

We report the cloning and functional expression of a novel K+ channel beta-subunit from human atrium, hKv beta 3. hKv beta 3 is highly homologous to the two beta-subunits cloned from rat brain, Kv beta 1 and Kv beta 2, but has an essentially unique stretch of 79 N-terminal residues. Upon expression in Xenopus oocytes, hKv beta 3 accelerates the inactivation of co-injected hKv1.4 currents and induces fast inactivation of non-inactivating co-injected hKv1.5 currents. By contrast, hKv beta 3 had no effect on hKv1.1, hKv1.2, or hKv2.1 currents. Thus, hKv beta 3 represents a third type of K+ channel beta-subunit which modulates the kinetics of a unique subset of channels in the Kv1 subfamily.

Point mutation of a conserved arginine (104) to lysine introduces hypersensitivity to inhibition by glyphosate in the 5-enolpyruvylshikimate-3-phosphate synthase of Bacillus subtilis.

The role of a conserved arginine (R104) in the putative phosphoenol pyruvate binding region of 5-enolpyruvyl shikimate-3-phosphate synthase of Bacillus subtilis has been investigated. Employing site directed mutagenesis arginine was substituted by lysine or glutamine. Native and mutant proteins were expressed and purified to near homogeneity. Estimation of Michaelis and inhibitor constants of the native and mutant proteins exhibited altered substrate-inhibitor binding mode and constants. Mutation R104K hypersensitized the enzyme reaction to inhibition by glyphosate. The role of R104 in discriminating between glyphosate and phosphoenol pyruvate is discussed.