Displaying publications 1 - 20 of 63 in total

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  1. Sarsaifi K, Rosnina Y, Ariff MO, Wahid H, Hani H, Yimer N, et al.
    Reprod. Domest. Anim., 2013 Dec;48(6):1006-12.
    PMID: 23808560 DOI: 10.1111/rda.12206
    This study was conducted to evaluate the response of Bali bulls (Bos javanicus) to different semen collection methods and their effects on fresh and post-thawed semen quality. The collection methods employed were electro-ejaculation (EE), transrectal massage (RM) and RM followed by EE (RM + EE). A total of 25 untrained Bali bulls (age between 2 and 4 years old) were subjected to the different semen collection methods. Fresh semen samples from all the 25 bulls were evaluated for volume, pH, general motility, live/dead ratio and abnormality using the conventional method. For fresh and frozen samples collected by EE and RM from 10 bulls, computer-assisted semen analysis system was used for precise quantitative measurement of motility, velocity and forward progression. Accucell photometer was used to measure sperm concentration in all samples, regardless fresh and frozen. Semen samples were obtained 100% of the attempts using EE, 84% using RM and 96% using RM + EE. There were no differences among the collection methods for fresh semen quality characteristics, including motility, morphology and viability, but pH and volume were higher for EE than RM and RM + EE. Higher sperm concentration was observed in semen collected by RM than the other two methods. Different age groups (2-3 and >3-4 years old) of the bulls did not show significant differences in volume, pH, sperm concentration, percentages in motility, live/dead ratio and normal sperm morphology. The quality of semen for general and progressive motility, VAP, VSL and VCL and acrosomal integrity after thawing was higher for RM than EE. In conclusion, Bali bulls appeared to respond best to EE and the combination of RM + EE than RM, as a method of semen collection, with a shorter time of stimulation required. Differences in age of the Bali bulls did not affect the semen quality.
    Matched MeSH terms: Rectum
  2. Dietz HP, Chatel C, Atan IK
    Int Urogynecol J, 2018 May;29(5):703-707.
    PMID: 28733790 DOI: 10.1007/s00192-017-3410-8
    INTRODUCTION AND HYPOTHESIS: Pelvic organ prolapse (POP) commonly presents with a "vaginal lump or bulge" and/or a "dragging sensation." The first symptom correlates strongly with clinical and imaging data. However, a "dragging sensation" may be less specific. Hence, we investigated the predictive value of both symptoms for POP.

    METHODS: This was a retrospective study involving archived data sets of women seen between November 2013 and May 2014. All underwent a clinical interview, POPQ examination, and 4D translabial ultrasound (TLUS). The main outcome measure was organ descent on clinical examination and TLUS. Offline analysis for organ descent was undertaken blinded against all other data.

    RESULTS: A total of 224 women were assessed. Mean age was 57 (23-84) years. Median parity was 3 (0-7). Ninety-three percent (n=208) were vaginally parous. Fifty-eight percent (n=129) complained of symptoms of prolapse: 49% (n=110) of a vaginal lump, 27% (n=61) of a dragging sensation. Clinically, mean point B anterior (Ba) was -0.86 (-3 to +7.5) cm, mean cervical station (C) was -4.1 (-9 to +8) cm, mean point B posterior (Bp) was -1.1 (-3 to +5) cm. On imaging, mean bladder, uterine, and rectal descent were -8.3 (-68.0 to 34) mm, +18.6 (-56.4 to 46.3) mm, and -5.3 (-39.8 to 36) mm respectively. On univariate analysis, both symptoms were strongly associated with objective prolapse clinically and on TLUS, with "vaginal lump" consistently the stronger predictor.

    CONCLUSIONS: The symptom of a "vaginal lump or bulge" was consistently a stronger predictor of objective POP than "dragging sensation." This finding was insensitive to adjustments for potential confounders. However, a "dragging sensation" is clearly a symptom of prolapse.

    Matched MeSH terms: Rectum
  3. Dzarr AA, Kamal M, Baba AA
    Eur J Oncol Nurs, 2009 Sep;13(4):250-4.
    PMID: 19386547 DOI: 10.1016/j.ejon.2009.03.006
    This study assessed the agreement between infrared tympanic membrane (TM), axillary, corrected axillary (+0.5 degrees C), oral, and corrected oral (+0.3 degrees C) to rectal thermometry as reference standard in neutropenic adults. The sensitivity and specificity of the mentioned thermometries in detecting rectal fever (> or =38 degrees C) were also analysed.
    Matched MeSH terms: Rectum
  4. Iyngkaran N, Yadav M, Boey CG
    Arch Dis Child, 1989 Sep;64(9):1256-60.
    PMID: 2817945
    Eleven infants who were suspected clinically of having cows' milk protein sensitive enteropathy were fed with a protein hydrolysate formula for six to eight weeks, after which they had jejunal and rectal biopsies taken before and 24 hours after challenge with cows' milk protein. When challenged six infants (group 1) developed clinical symptoms and five did not (group 2). In group 1 the lesions developed in both the jejunal mucosa (four infants at 24 hours and one at three days), and the rectal mucosa, and the injury was associated with depletion of alkaline phosphatase activity. Infants in group 2 were normal. It seems that rectal injury that develops as a direct consequence of oral challenge with the protein in reactive infants may be used as one of the measurements to confirm the diagnosis of cows' milk protein sensitive enteropathy. Moreover, ingestion of such food proteins may injure the distal colonic mucosa without affecting the proximal small gut in some infants.
    Matched MeSH terms: Rectum/pathology*
  5. Ooi MH, Solomon T, Podin Y, Mohan A, Akin W, Yusuf MA, et al.
    J Clin Microbiol, 2007 Jun;45(6):1858-66.
    PMID: 17446325
    Human enterovirus 71 and coxsackievirus A16 are important causes of hand-foot-and-mouth disease (HFMD). Like other enteroviruses, they can be isolated from a range of sterile and nonsterile sites, but which clinical sample, or combination of samples, is the most useful for laboratory diagnosis of HFMD is not clear. We attempted virus culture for 2,916 samples from 628 of 725 children with HFMD studied over a 3 1/2-year period, which included two large outbreaks. Overall, throat swabs were the single most useful specimen, being positive for any enterovirus for 288 (49%) of 592 patients with a full set of samples. Vesicle swabs were positive for 169 (48%) of 333 patients with vesicles, the yield being greater if two or more vesicles were swabbed. The combination of throat plus vesicle swabs enabled the identification of virus for 224 (67%) of the 333 patients with vesicles; for this patient group, just 27 (8%) extra patients were diagnosed when rectal and ulcer swabs were added. Of 259 patients without vesicles, use of the combination of throat plus rectal swab identified virus for 138 (53%). For 60 patients, virus was isolated from both vesicle and rectal swabs, but for 12 (20%) of these, the isolates differed. Such discordance occurred for just 11 (10%) of 112 patients with virus isolated from vesicle and throat swabs. During large HFMD outbreaks, we suggest collecting swabs from the throat plus one other site: vesicles, if these are present (at least two should be swabbed), or the rectum if there are no vesicles. Vesicle swabs give a high diagnostic yield, with the added advantage of being from a sterile site.
    Matched MeSH terms: Rectum/virology
  6. Cheah WH
    Asia Pac J Clin Oncol, 2023 Apr;19(2):e80-e88.
    PMID: 35437926 DOI: 10.1111/ajco.13782
    Rectal cancer is common and accounts for more than one-third of colorectal tumors. It is associated with significant morbidity and mortality. Previously computed tomography scan is the key imaging modality in preoperative assessment to detect local invasion and distant metastasis. However, the advent of magnetic resonance imaging (MRI) has aided in local staging and prognosticates the outcome of rectal tumor. Here, the author briefly explains why rectal MRI has a comprehensive role and provides a simple and easy way in reporting an MRI rectal carcinoma, even for a non-radiologist.
    Matched MeSH terms: Rectum/pathology
  7. Guzmán Rojas R, Kamisan Atan I, Shek KL, Dietz HP
    Aust N Z J Obstet Gynaecol, 2015 Oct;55(5):487-92.
    PMID: 26172410 DOI: 10.1111/ajo.12347
    Rectocele is a herniation of the anterior wall of the rectal ampulla through a defect in the rectovaginal septum causing protrusion of the posterior vaginal wall. Common symptoms include symptoms of prolapse and obstructed defecation.
    Matched MeSH terms: Rectum
  8. Khan SM, Wells C, Christou N, Tan CY, Mathur P, El-Hussuna A
    Surgery, 2023 Jul;174(1):46-51.
    PMID: 37156647 DOI: 10.1016/j.surg.2023.04.001
    BACKGROUND: Anastomosis leak is one of the significant postoperative complications after colorectal surgery. The aim of this systematic review was to synthesize the evidence relative to the preoperative assessment of the colon and rectum blood supply and to investigate its role in predicting anastomosis leak.

    METHOD: This systematic review was conducted according to the recommendations of the Cochrane Handbook for Reviews of Interventions and reported according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses. PubMed, Embase, and the Cochrane Library were searched to identify eligible studies. The main outcome variable was the preoperative assessment of patterns of blood supply to the colon and the impact of these patterns on anastomosis leak. The quality of bias control in the studies was assessed using the Newcastle-Ottawa Scale. Due to the heterogeneous nature of the included studies, no meta-analysis was conducted.

    RESULTS: Fourteen studies were included. The study covered a period from 1978 to 2021. A significant degree of variation in the arterial and/or venous supply of the colon and rectum might influence anastomosis leak rates. Calcification in great blood vessels can be assessed with a preoperative computed tomography scan, which may predict anastomosis leak rates. This is supported by many experimental studies that showed increased rates of anastomosis leak after preoperative ischemia, but the extent of this impact is not well established.

    CONCLUSION: Preoperative assessment of blood supply to the colon and rectum might help in planning the surgical intervention to reduce anastomosis leak rates. Calcium scoring of major arteries might predict anastomosis leak and thus play a crucial role in intraoperative decision-making.

    Matched MeSH terms: Rectum/surgery
  9. Dietz HP, Gómez M, Atan IK, Ferreira CSW
    Int Urogynecol J, 2018 Oct;29(10):1479-1483.
    PMID: 29464300 DOI: 10.1007/s00192-017-3552-8
    INTRODUCTION AND HYPOTHESIS: Rectocele is common in parous women but also seen in nulliparae. This study was designed to investigate the association between vaginal parity and descent of the rectal ampulla/rectocele depth as determined by translabial ultrasound (TLUS).

    METHODS: This retrospective observational study involved 1296 women seen in a urogynaecological centre. All had undergone an interview, clinical examination and 4D ultrasound (US) imaging supine and after voiding. Offline analysis of volume data was undertaken blinded against other data. Rectal ampulla position and rectocele depth were measured on Valsalva. A pocket depth of 10 mm was used as a cutoff to define rectocele on imaging.

    RESULTS: Most women presented with prolapse (53%, n = 686); 810 (63%) complained of obstructed defecation (OD). Clinically, 53% (n = 690) had posterior-compartment prolapse with a mean Bp of -1 [standard deviation (SD)1.5; -3 to 9 cm]. Mean descent of the rectal ampulla was 10 mm below the symphysis (SD 15.8; -50 to 41). A rectocele on imaging was found in 48% (n = 618). On univariate analysis, OD symptoms were strongly associated with rectal descent, rectocele depth and rectocele on imaging (all P 

    Matched MeSH terms: Rectum/physiopathology
  10. Lim SR, Gooi BH, Gam LH
    Cancer Biomark, 2012;12(4):185-98.
    PMID: 23568009 DOI: 10.3233/CBM-130307
    Detection of low abundance proteins always possesses challenges even with the currently available proteomics technologies.
    Matched MeSH terms: Rectum/metabolism
  11. Tham JH, Looi LM, Ghazali R
    Malays J Pathol, 2022 Dec;44(3):469-475.
    PMID: 36591714
    INTRODUCTION: Patients who are suspected of having prostate cancer from screening tests require a tissue biopsy to confirm the presence of cancer. This study aims to compare the cost and cancer detection rate of two different biopsy protocols: 6-core transrectal (TR) approach, and transperineal (TP) saturation biopsy.

    METHODS: In this descriptive, retrospective study, we selected all prostate biopsies received by the diagnostic pathology department of a tertiary hospital in Malaysia in the year 2020, from adult patients for analysis. Data on demographics, specimen preparation processes, and final histopathological diagnosis was extracted from the Laboratory Information System (LIS). The cost incurred for each biopsy diagnosed as cancer was calculated with the cost prices referenced from laboratory documentation. Statistical analysis was performed using SPSS, version 28.

    RESULTS: The total cost for detection of cancer using TR biopsy ranged from RM11.22 - RM271.02 with mean of RM47.53. The standard deviation, s is RM43.45. For TP biopsies, the total cost ranged from RM112.20 - RM349.56 with mean of RM160.85, standard deviation of RM80.37. TR biopsies had a detection rate of 43.2%, while TP biopsies had a 24.2% cancer detection rate. There is a 3.38-fold increase in costs between TR and TP biopsy.

    CONCLUSION: The results show a 3.38-fold increase in costs and a reduction in cancer detection rate when comparing TR and TP biopsy. The reason for the reduced detection rate is unascertained in this study.

    Matched MeSH terms: Rectum/pathology
  12. Ramesh JC, Ramanujam TM, Yik YI, Goh DW
    J Pediatr Surg, 1999 Nov;34(11):1691-4.
    PMID: 10591572
    The authors evaluated the safety and benefits of 1-stage pull-through in comparison with staged repair of Hirschsprung's disease under circumstances prevailing in a developing country.
    Matched MeSH terms: Rectum/surgery
  13. Tan YM, Rosmawati M, Ranjeev P, Goh KL
    J Gastroenterol Hepatol, 2002 Mar;17(3):281-4.
    PMID: 11982698
    BACKGROUND: The majority of colorectal cancers are still diagnosed in patients who present with symptoms especially in countries where colorectal screening programs are not practised. The aim of our study was to determine the predictive factors for colorectal cancer in patients referred for colonoscopy.

    METHODS: A prospective study of 485 consecutive patients who underwent colonoscopy during a 22-month period was performed. All patients answered a detailed questionnaire. Indications for colonoscopy and the findings were recorded.

    RESULTS: The mean age of the study population was 55.7 +/- 14.7 years. There were 221 (45.6%) males and 264 (54.4%) females. Sixty-five (13.4%) were Malays, 298 (61.4%) were Chinese and 112 (23.1%) were Indians. Multiple backward stepwise regression analysis revealed that independent predictors for colorectal cancer (odds ratio [95% CI]) were the presence of rectal bleeding (4.3 [4.0-8.0]) and iron deficiency anemia (4.0 [3.6-10.2]). In those aged 50 and over, male gender (4.5 [2.2-9.3]) and abdominal pain (3.1 [1.4-6.7]) were also significant positive predictors of cancer.

    CONCLUSIONS: With the ever-increasing demand for gastrointestinal endoscopy, the appropriate utilization of colonoscopy is essential to afford prompt patient evaluation. Our study supports the need to prioritize the use of colonoscopy in patients with rectal bleeding and iron deficiency anemia. In the older patient where the background prevalence of colorectal cancer is higher, referral for colonoscopy is also justified.

    Matched MeSH terms: Rectum
  14. Kumar S, Talib A, Gul YA
    Occult mucosal prolapse syndrome, also known as the solitary rectal ulcer syndrome (SRUS) is uncommon. Due to its rarity, a misdiagnosis of rectal cancer is occasionally made as the clinical features may closely mimic those of rectal malignancy. We hereby report a case of SRUS in an elderly Malay gentleman who had primary symptoms of rectal bleeding with associated anaemia and anorectal pain. Even though the clinical features and specific investigations suggested the presence of rectal cancer, preoperative histological analysis failed to confirm this. In view of the intractable symptoms and rectal bleeding, a low anterior resection was performed. A detailed examination of the resected specimen intraoperatively, together with the histological report and awareness of this condition avoided the performance of an abdomino-perineal resection. Incidently coexisting malrotation of the sigmoid colon to the right side was discovered during surgery. This finding, which may be coincidental, has not been reported thus far in the medical literature. The patient's symptoms improved postoperatively with a subsequent uneventful recovery. A brief literature review supplements this case report.
    Keywords: Mucosal prolapse syndrome, solitary rectal ulcer syndrome, rectal cancer
    Matched MeSH terms: Rectum
  15. Khodapasand E, Jafarzadeh N, Farrokhi F, Kamalidehghan B, Houshmand M
    Iran Biomed J, 2015;19(2):69-75.
    PMID: 25864810
    BACKGROUND: Bax and Bcl-2 are the major members of Bcl-2 family whose play a key role in tumor progression or inhibition of intrinsic apoptotic pathway triggered by mitochondrial dysfunction. Therefore, the balance between pro- and anti-apoptotic members of this family can determine the cellular fate.

    METHODS: In this study, the relative level of mRNA expression of Bax and Bcl-2 genes was determined using RNA extraction, cDNA synthesis and RT-qPCR technique from 22 tumoral tissues and adjacent non-tumoral tissues from adenocarcinoma colorectal cancer.

    RESULTS: The potential prognostic and predictive significance of Bax and Bcl-2 gene expression and Bax/Bcl-2 ratio were demonstrated in colorectal cancer. The significant correlation between qPCR data and different clinicopathologic parameters of colorectal carcinoma, including age, gender, tumor size, tumor stage, tumor location, and tumor differentiation was also examined. Interestingly, no significant correlation was seen between Bax and Bcl-2 expressions and clinicopathological parameters of colorectal cancer. However, Bax/Bcl-2 ratio was statistically correlated with age and tumor location. Patients with age above 50 showed decreased levels of Bax/Bcl-2 ratio. Moreover, the Bax/Bcl-2 ratio was significantly lower in tumors resected from colon compared to sigmoid colon, rectosigmoid and rectum tumors.

    CONCLUSION: This study indicates a significant correlation between age and tumor location with Bax/Bcl-2 expression ratio, suggesting predictive value as a potential molecular marker of colorectal cancer.

    Matched MeSH terms: Rectum/pathology
  16. Yoshida N, Naito Y, Murakami T, Ogiso K, Hirose R, Inada Y, et al.
    Case Rep Gastroenterol, 2018 01 19;12(1):27-31.
    PMID: 29515342 DOI: 10.1159/000486128
    Cold snare polypectomy (CSP) should be performed for benign lesions, though an accurate diagnosis is sometimes difficult with only white light observation. Irregular findings by narrow-band imaging (NBI) are useful for differentiating malignant lesions from benign lesions, and cases with this finding are not expected for CSP. We present a diminutive T1 cancer resected by CSP as a reflection case. A 68-year-old man underwent colonoscopy for surveillance after polypectomy. A reddish polyp 4 mm in size was detected at the rectum. White light observation showed no depression, but a slight, heterogeneous color change. NBI magnification showed irregular vessel and surface patterns. The polyp was diagnosed as intramucosal cancer. Even though cancerous lesions are regularly resected by endoscopic mucosal resection (EMR), this polyp was resected by CSP in daycare surgery because the patient requested not to be treated by EMR but by CSP, which needed an admission to our institution. The surgeon thought the polyp could be completely resected by CSP. It was thoroughly resected, and a histological examination showed submucosal cancer with a positive vertical margin. Additional surgical resection was not accepted by the patient, since he had received total gastrectomy for gastric cancer and a right hemicolectomy for colonic cancer in the past 7 years. He underwent follow-up colonoscopy 2 months after the CSP. Although there were no recurrent endoscopic findings, endoscopic submucosal dissection was performed to the scar area. The histological examination showed no residual tumor. In conclusion, CSP should only be adopted for benign cases, as cancerous lesions have a possibility for invading the submucosa, like in our case.
    Matched MeSH terms: Rectum
  17. Dey YN, Wanjari MM, Kumar D, Lomash V, Jadhav AD
    J Ethnopharmacol, 2016 Nov 04;192:183-191.
    PMID: 27426509 DOI: 10.1016/j.jep.2016.07.042
    ETHNOPHARMACOLOGICAL RELEVANCE: Amorphophallus paeoniifolius (Dennst.) Nicolson (Family- Araceae) is a crop of south East Asian origin. In India, its tuber is widely used in ethnomedicinal practices by different tribes for the treatment of piles (hemorrhoids).

    AIM: The present study evaluated the effect of methanolic and aqueous extract of Amorphophallus paeoniifolius tuber on croton oil induced hemorrhoids in rats.

    MATERIALS AND METHODS: The methanolic extract was standardized with the major phenolic compound, betulinic acid, by HPLC. The hemorrhoids were induced by applying 6% croton oil preparation in the ano-rectal region. Rats were orally administered methanolic and aqueous extract at doses of 250 and 500mg/kg, each for 7 days. Pilex (200mg/kg) was used as reference anti-hemorrhoidal drug. Hemorrhoids were assessed on eighth day by measuring hemorrhoidal and biochemical parameters along with histology of ano-rectal tissue.

    RESULTS: Croton oil application caused induction of hemorrhoids as indicated by significant (p<0.001) increase in plasma exudation of Evans blue in ano-rectal tissue, macroscopic severity score and ano-rectal coefficient as compared to normal rats. It significantly (p<0.001) elevated lactate dehydrogenase and cytokines (TNF-α and IL-6) levels in serum and increased myeloperoxidase activity and lipid peroxidation in ano-rectal tissue along with marked histological damage as compared to normal rats. Treatment with tuber extracts and pilex significantly (p<0.05-p<0.001) ameliorated Evans blue exudation, hemorrhoidal parameters and other biochemical parameters with attenuation of tissue damage compared to hemorrhoid control rats. The results indicate that tuber extracts exhibited curative action on hemorrhoids. The aqueous extract showed more pronounced effect than methanolic extract. The effects may be attributed to anti-inflammatory and antioxidant properties.

    CONCLUSION: Results indicate that tuber of Amorphophallus paeoniifolius exhibited curative action on hemorrhoids through anti-inflammatory and antioxidant properties. The study validates the ethnomedicinal use of tuber in hemorrhoids and implicates its therapeutic potential as an anti-hemorrhoidal agent.

    Matched MeSH terms: Rectum/drug effects*; Rectum/metabolism; Rectum/pathology
  18. Sim PH, Pathmanathan R, Jalleh RP
    Aust N Z J Surg, 1995 Jan;65(1):68-70.
    PMID: 7818432
    A case is reported of retroperitoneal malignant fibrous histiocytoma (MFH) invading into the colon, causing fresh bleeding per rectum. It illustrates the difficulty encountered in the pre-operative diagnosis of this condition, especially in a patient with an atypical presentation of profuse lower gastrointestinal bleeding.
    Matched MeSH terms: Rectum
  19. Azmi, M.N., Zailani, M.A., Norashikin, M.N., Asma Assaedah, Norra, H., Kalavathy, R., et al.
    MyJurnal
    PURPOSE: This review was performed to determine the association between demographic characteristics and the histopathological findings of colorectal cancer (CRC) patients operated in Hospital Tengku Ampuan Afzan (HTAA) Kuantan Pahang Malaysia. METHODS: We retrospectively reviewed the histopathological reports of 119 CRC cases operated in HTAA from January 2001 to December 2005 which met the inclusion criteria of histologically proven adenocarcinoma. The following demographic characteristics which include age, gender, and ethnicity were assessed. The histopathological related variables which include the site of primary tumor, Astler and Coller stage, tumor differentiation and lymph node metastasis were analyzed. Chi square test was used for categorical variables. Data with low expected counts were assessed using Fisher’s exact tests. RESULTS: There were 59 males and 60 females with age ranging from 23 to 93 years. 81.5% of the patients were older than 50 years (p=0.038). Malays accounted for 58.8% of the total cases, followed by Chinese (36.1%) and Indian (5%). Rectosigmoid region and rectum were the most common sites for primary tumor (55.6%). Cancer in male predominantly occurred in the rectum (p=0.023). Malays were commonly diagnosed with stage C2 (54.3%) while Chinese were diagnosed with stage B2 (58.1%) (p=0.011). Fifty percent of the patients who are less than 50 years old were diagnosed with stage C2 (p=0.024). There was significant change from well to moderately differentiated adenocarcinoma (p=0.000). Sixty percent of female patients diagnosed to have cancer with lymph node metastasis (p=0.044). Significant lymph node metastasis was also observed among Malay patients (p=0.022). CONCLUSION: The findings from the present review suggest that there are several associations between demographic distribution and histopathological characteristics of CRC. More than fifty per cent of CRC are found in the rectosigmoid region and the rectum. CRC are more common in Malay race and rectal cancer is predominantly affecting the male. About forty five percent of patients harbor metastases in the lymph nodes and fifty percent of the younger age group were presenting with nodal metastases.
    Matched MeSH terms: Rectum
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