Displaying publications 121 - 132 of 132 in total

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  1. Ngeow WC, Thong YL
    Int Endod J, 1998 Sep;31(5):367-71.
    PMID: 9823142
    Dental pulp is prone to dystrophic mineralization; this mineralization can be so extensive that the entire root canal system is obliterated. As a result, root canal treatment can become a difficult if not impossible task. This article presents the endodontic management of a tooth with an obliterated pulp chamber and associated with a discharging sinus in a teenage patient. The role of a calcium hydroxide lining to induce mineralization and cause the obliteration of the pulpal space is also discussed.
    Matched MeSH terms: Dental Fistula/etiology
  2. Krause HG, Wong V, Ng SK, Tan GI, Goh JTW
    Aust N Z J Obstet Gynaecol, 2019 08;59(4):585-589.
    PMID: 31146301 DOI: 10.1111/ajo.12990
    BACKGROUND: While pelvic floor ultrasound is commonly utilised in high-resource locations, our understanding of pelvic floor characteristics in women suffering with obstetric fistula and unrepaired fourth degree obstetric tears in low-resource areas is limited.

    AIMS: This study aimed to assess the pelvic floor ultrasound characteristics of Ugandan women suffering with obstetric fistula, unrepaired fourth degree obstetric tears and pelvic organ prolapse, and determine whether obstructed labour resulting in obstetric fistula causes more levator muscle defects compared to parous women without a history of obstructed labour.

    MATERIALS AND METHODS: This was a prospective study in western Uganda assessing 82 women with obstetric fistula, unrepaired fourth degree obstetric tears and pelvic organ prolapse with a pelvic floor ultrasound scan.

    RESULTS: Demographic characteristics were significantly different, with women suffering pelvic organ prolapse being older and more parous. Hiatal area on Valsalva was significantly smaller in the obstetric fistula group (mean 21.45 cm2 ) compared to non-obstetric fistula group (unrepaired fourth degree obstetric tears and pelvic organ prolapse; mean 30.44 cm2 ); a mean difference of 9.0 cm2 (95% CI: 5.4-12.6 cm2 , P fistula (66.7%) compared to the non-obstetric fistula group (44.7%) with P = 0.048; however, there were no significant differences in complete levator muscle defects between obstetric fistula (28.6%) and non-obstetric fistula (23.7%).

    CONCLUSIONS: Increased hiatal area on Valsalva was noted in the non-obstetric fistula group compared to women with obstetric fistula; however, there were no differences in proportions of complete levator muscle defects.

    Matched MeSH terms: Vaginal Fistula/epidemiology
  3. Ambrosanio G, Arthimulam G, Leone G, Guarnieri G, Muto M, Muto M
    World Neurosurg, 2020 10;142:167-170.
    PMID: 32615295 DOI: 10.1016/j.wneu.2020.06.190
    BACKGROUND: Intracranial vascular malformations are increasingly being treated via the endovascular route. Though generally safe, a multitude of intraprocedural complications that potentially lead to disastrous clinical outcomes may arise. It is crucial for the operators to be well versed with the various techniques that are available to overcome any procedure-specific complications.

    METHODS: We present 2 cases in which we encountered premature intravascular detachment of the microcatheter tip and coil migration while treating a dural arteriovenous fistula and aneurysm, respectively. We used a stentriever to remove the detached microcatheter tip and suction using the reperfusion catheter to remove the migrated coil, both techniques that have not been reported in the literature thus far.

    RESULTS: Detached microcatheter tip and migrated coil were successfully retrieved using a stentriever and aspiration catheter.

    CONCLUSIONS: These novel techniques could potentially reduce mortality and morbidity associated with neurointervention.

    Matched MeSH terms: Arteriovenous Fistula/surgery*
  4. Hamzan MI, Hamid AR, Halim AS, Mat Saad AZ
    Hemodial Int, 2020 04;24(2):E33-E36.
    PMID: 32141217 DOI: 10.1111/hdi.12832
    A young lady with an arteriovenous (AV) fistula on hemodialysis was referred for surgical management following a failed endovascular approach to relieve central venous occlusion. She had an obstructed left brachiocephalic vein with a history of numerous central vein catheter placements. Alternative routes for new arteriovenous fistula creation had been exhausted due to previous contralateral upper limb fistula rupture and ligation. To the best of our knowledge, no similar cases of airway obstruction in central venous occlusion occurring in hemodialysis patients with AV fistula have been reported. The importance of identifying the possible emergency red flags in hemodialysis patients with central venous occlusion is important to prevent unwanted consequences.
    Matched MeSH terms: Arteriovenous Fistula/complications*
  5. Viecelli AK, Polkinghorne KR, Pascoe EM, Paul-Brent PA, Hawley CM, Badve SV, et al.
    PLoS One, 2019;14(3):e0213274.
    PMID: 30913208 DOI: 10.1371/journal.pone.0213274
    BACKGROUND: Arteriovenous fistulas (AVF) for haemodialysis often experience early thrombosis and maturation failure requiring intervention and/or central venous catheter (CVC) placement. This secondary and exploratory analysis of the FAVOURED study determined whether omega-3 fatty acids (fish oils) or aspirin affected AVF usability, intervention rates and CVC requirements.

    METHODS: In 567 adult participants planned for AVF creation, all were randomised to fish oil (4g/d) or placebo, and 406 to aspirin (100mg/d) or placebo, starting one day pre-surgery and continued for three months. Outcomes evaluated within 12 months included AVF intervention rates, CVC exposure, late dialysis suitability failure, and times to primary patency loss, abandonment and successful cannulation.

    RESULTS: Final analyses included 536 participants randomised to fish oil or placebo (mean age 55 years, 64% male, 45% diabetic) and 388 randomised to aspirin or placebo. Compared with placebo, fish oil reduced intervention rates (0.82 vs 1.14/1000 patient-days, incidence rate ratio [IRR] 0.72, 95% confidence interval [CI] 0.54-0.97), particularly interventions for acute thrombosis (0.09 vs 0.17/1000 patient-days, IRR 0.53, 95% CI 0.34-0.84). Aspirin significantly reduced rescue intervention rates (IRR 0.45, 95% CI 0.27-0.78). Neither agent significantly affected CVC exposure, late dialysis suitability failure or time to primary patency loss, AVF abandonment or successful cannulation.

    CONCLUSION: Although fish oil and low-dose aspirin given for 3 months reduced intervention rates in newly created AVF, they had no significant effects on CVC exposure, AVF usability and time to primary patency loss or access abandonment. Reduction in access interventions benefits patients, reduces costs and warrants further study.

    Matched MeSH terms: Arteriovenous Fistula/drug therapy*
  6. Oyeyemi AL, Aliyu SU, Sa'ad F, Rufa'i AA, Jajere ARM, Oyeyemi AY
    BMJ Open, 2019 03 08;9(3):e024017.
    PMID: 30852533 DOI: 10.1136/bmjopen-2018-024017
    INTRODUCTION: Adolescent motherhood (childbearing below 18 years of age) is a major global health and social problem. Understanding the impact of early motherhood on maternal and child health indices is important to community and population health promotion in developing countries. This study examined the association between adolescent motherhood and maternal and child health indices in Maiduguri, Nigeria.

    METHODS: A cross-sectional design method was used to recruit 220 mothers (age=14-25 years) from four communities in the city of Maiduguri, Northeastern Nigeria. Participants were surveyed using a self-developed interviewer-administered questionnaire that assesses maternal and child health indices and sociodemographic characteristics. Logistic regression analysis was used to compute adjusted OR and 95% CI of the associations between motherhood in adolescence (mothers below 18 years old) and maternal and child health indices.

    RESULTS: Compared to adult mothers, adolescent mothers were more likely to experience fistula (OR=5.01, 95% CI=3.01 to 14.27), to have postpartum haemorrhage (OR=6.83, 95% CI=2.93 to 15.92), to have sexually transmitted infections (OR=6.29, 95% CI=2.26 to 17.51) and to lose a child within 5 years of birth (OR=3.52, 95% CI=1.07 to 11.60). Children born to adolescent mothers were less likely to have normal weight at birth (OR=0.34, CI=0.15 to 0.73) than those born to adult mothers.

    CONCLUSION: Adolescent motherhood was associated with negative maternal and child health indices. The findings can be used by public health professionals including physiotherapists in this role to inform effective primary healthcare practice and community health advocacy to improve maternal and child health indices among adolescent mothers in Maiduguri. Future studies are needed to confirm the evidence at the regional or national level including the rural population in Nigeria.

    Matched MeSH terms: Fistula/epidemiology*
  7. Oskoueian E, Abdullah N, Oskoueian A
    Biomed Res Int, 2013;2013:349129.
    PMID: 24175289 DOI: 10.1155/2013/349129
    This research was carried out to evaluate the effects of flavone, myricetin, naringin, catechin, rutin, quercetin, and kaempferol at the concentration of 4.5% of the substrate (dry matter basis) on the rumen microbial activity in vitro. Mixture of guinea grass and concentrate (60 : 40) was used as the substrate. The results showed that all the flavonoids except naringin and quercetin significantly (P < 0.05) decreased the dry matter degradability. The gas production significantly (P < 0.05) decreased by flavone, myricetin, and kaempferol, whereas naringin, rutin, and quercetin significantly (P < 0.05) increased the gas production. The flavonoids suppressed methane production significantly (P < 0.05). The total VFA concentration significantly (P < 0.05) decreased in the presence of flavone, myricetin, and kaempferol. All flavonoids except naringin and quercetin significantly (P < 0.05) reduced the carboxymethyl cellulase, filter paperase, xylanase, and β -glucosidase activities, purine content, and the efficiency of microbial protein synthesis. Flavone, myricetin, catechin, rutin, and kaempferol significantly (P < 0.05) reduced the population of rumen microbes. Total populations of protozoa and methanogens were significantly (P < 0.05) suppressed by naringin and quercetin. The results of this research demonstrated that naringin and quercetin at the concentration of 4.5% of the substrate (dry matter basis) were potential metabolites to suppress methane production without any negative effects on rumen microbial fermentation.
    Matched MeSH terms: Fistula
  8. Mohamed S, Abdullah B, Singh DA, Heng KS
    Biomed Imaging Interv J, 2006 Jul;2(3):e26.
    PMID: 21614240 DOI: 10.2349/biij.2.3.e26
    Chronic wounds and scar tissues are prone to skin cancer. In 1828, Jean-Nicholas Marjolin described the occurrence of tumours in post-traumatic scar tissue. He did not, however, identify the warty ulcers he described as malignant. It was Dupuytren, who about two years later, noted that these lesions were cancerous. The eponym was bestowed by Da Costa in 1903. Marjolin's ulcer no longer refers only to carcinomas secondary to burns and is classified as a malignancy that arises from previously traumatised, chronically inflamed, or scarred skin. It has been reported in relation to osteomyelitis, venous stasis ulcer, tropical ulcers, chronic decubitus ulcer, frostbite, pilonidal sinus, vaccination site, urinary fistula, hidradenitis suppurativa, skin graft donor site, gunshot wounds, puncture wounds, dog bites, and lupus rash. Early arising Marjolin's ulcer has rarely been described in literature. In this case report, we present the CT appearances of Marjolin's ulcer in the left gluteal region of a young man.
    Matched MeSH terms: Urinary Fistula
  9. Shu Ann Hon, Jan Jan Chai, Lian Thai Lee, Qin Jian Low
    MyJurnal

    A 49-year-old gentleman presented with epigastric pain for one day associated with one episode of vomiting and dyspnoea. Respiratory examination showed reduced breath sound over his left lower zone. He was treated as left spontaneous pneumothorax and left lung empyema requiring left chest tube insertion and intravenous antibiotics. His left pleural fluid biochemistry result was exudative while its centrifuge showed empyema. In ward, we noticed food material draining from his left chest tube during feeding. An urgent contrast enhanced computed tomography (CECT) thorax showed a left oesophageal-pleural fistula with possible broncho-oesophageal fistula. During oesoph- agogastroduodenoscopy (OGDS), air bubbles were seen in his left under-water chest drainage during air-insufflation of the oesophagus. The revised diagnosis was Boerhaave syndrome. He was treated with an esophageal stent to cover the perforation and a left lung decortication via video assisted thoracoscopic surgery (VATS) for his left empyema. He improved and was discharged well.
    Matched MeSH terms: Esophageal Fistula
  10. Subramaniam SM, Ishii K, Sheng CJ, Nakatomi H, Takai K, Saito N
    Surg Neurol Int, 2019;10:251.
    PMID: 31893152 DOI: 10.25259/SNI_516_2019
    Background: Spinal arteriovenous fistulas (AVFs) are vascular lesions that often pose significant surgical challenges. This is particularly true for those located close to the anterior spinal artery. Here, we analyzed the surgical options for treating an anterior perimedullary AVF (pAVFs).

    Case Description: A 66-year-old male with the right lower extremity weakness was diagnosed with a spinal dural AVF at the L1 level. It was initially treated with open surgery followed by CyberKnife radiosurgery at another institution. Five years later, he presented with a persistent pAVF fistula now involving the T11 level; the major feeder originated on the left at the T7-T8 level (e.g., involving a left-sided "duplicated" anterior spinal artery). Utilizing a three-dimensional (3D) computer tomography (CT) guided approach; he underwent a left-sided posterolateral T10-T12 laminectomy, sufficient to allow for 30-40° of anterior spinal cord rotation. This was performed under neurophysiological monitoring without any significant changes. Surgery included indocyanine green video angiography, temporary feeder clipping, and complete occlusion of the AVF, followed by complete clipping/resection as confirmed on postoperative magnetic resonance imaging.

    Conclusion: Utilizing a 3D CT image, a ventral pulmonary arteriovenous malformation was excised utilizing a left-sided posterolateral approach allowing for 30-40° of cord rotation.

    Matched MeSH terms: Arteriovenous Fistula
  11. Siti Aishah Sulaiman, Nor Azian Abdul Murad, Chow, Yock Ping, Zam Zureena Mohd Rani, Salwati Shuib, Dayang Anita A. Aziz, et al.
    MyJurnal
    VACTERL association is a rare genetic disorder involving at least three of the following congenital
    malformations: vertebral defects (V), anal atresia (A), cardiac defects (C), trachea-oesophageal fistula with
    or without oesophageal atresia (TE), renal anomalies (R) and limb abnormalities (L). Until now, the
    aetiology of VACTERL association is unknown, particularly at the molecular level. Here, we performed
    whole exome sequencing (WES) of an infant with VACTERL association. The patient was delivered
    prematurely at 30 weeks and had 4/6 of the VACTERL malformations. Trio-WES analysis was performed
    using Torrent Suite and ANNOVAR. Polymorphisms with an allele frequency of >0.01 were excluded, and
    the remaining variants were filtered based on de novo mutations, autosomal recessive, X-linked and di-genic
    inheritance traits. In this patient, no homozygous, compound heterozygous or X-linked mutations was
    associated with VACTERL. However, we identified two heterozygous mutations; KIF27
    (ENST00000297814: c.3004A> C:p.N1002H) and GNAS (ENST00000371098: c.205C>A:p.H69N) genes that
    were inherited from her father and mother respectively. A de novo, IFT140 gene mutation
    (ENST00000426508: c.683C>G:p.S228C) was also identified in this patient. The VACTERL phenotype in
    this patient may due to heterozygous mutations affecting KIF27 and GNAS genes, inherited via autosomal
    recessive trait. In addition, the IFT140 gene mutation may also be involved. These genes are known to be
    directly or non-directly involved in the sonic hedgehog signalling that is known to be implicated in
    VACTERL. This is the first report of these genetic mutations in association with VACTERL.
    Matched MeSH terms: Esophageal Fistula
  12. Mohd-Tahir F, Siti-Raihan I, Wan Hazabbah WH
    Case Rep Ophthalmol Med, 2013;2013:158961.
    PMID: 23533876 DOI: 10.1155/2013/158961
    Aim. To report a rare case of arteriovenous malformation in temporal lobe presenting as contralateral orbital symptoms mimicking carotid-cavernous fistula. Method. Interventional case report. Results. A 31-year-old Malay gentleman presented with 2-month history of painful progressive exophthalmos of his left eye associated with recurrent headache, diplopia, and reduced vision. Ocular examination revealed congestive nonpulsating 7 mm exophthalmos of the left eye with no restriction of movements in all direction. There was diplopia in left lateral gaze. Left IOP was elevated at 29 mmHg. Left eye retinal vessels were slightly dilated and tortuous. CT scan was performed and showed right temporal arteriovenous malformation with a nidus of 3.8 cm × 2.5 cm with right middle cerebral artery as feeding artery. There was dilated left superior ophthalmic vein of 0.9 mm in diameter with enlarged left cavernous sinus. MRA and carotid angiogram confirmed right temporal arteriovenous malformation with no carotid-cavernous fistula. Most of the intracranial drainage was via left cavernous sinus. His signs and symptoms dramatically improved following successful embolisation, completely resolved after one year. Conclusion. Intracranial arteriovenous malformation is rarely presented with primary ocular presentation. Early intervention would salvage the eyes and prevent patients from more disaster morbidity or fatality commonly due to intracranial haemorrhage.
    Matched MeSH terms: Carotid-Cavernous Sinus Fistula
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