Displaying publications 1 - 20 of 53 in total

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  1. Kho SS, Tay PS, Lee J, Tie ST
    AME Case Rep, 2017;1:4.
    PMID: 30263991 DOI: 10.21037/acr.2017.09.05
    Pleural effusion is a common encounter in renal failure patients and frequently possess a diagnostic challenge to clinician especially when it was exudative. Fortunately, transudative pleural effusion secondary to fluid overload remains the commonest cause of pleural effusion in haemodialysis patients. Frequent thoracocentesis enhance pleural inflammation and potentially complicate further this challenging clinical presentation. We report a middle-aged gentleman with advanced chronic kidney disease presented with dyspnea and new right upper lobe consolidation on chest roentograph. He had a history of recurrent bilateral pleural effusion secondary to fluid overload and hence multiple attempts of thoracocentesis were performed. Medical thoracoscopy performed previously yielded non-specific pleuritis. Flexible bronchoscopy demonstrates normal airway with negative microbiological studies. Computed tomography (CT) of the thorax shown a loculated hypodense pleural effusion at the apical region of the right upper lobe. Ultrasound guided thoracocentesis anteriorly yield 400 mL of clear straw color fluid which was transudative by Light's criteria. Post tapping chest X-ray shown complete resolution of right upper lobe consolidation and patient reports immediate relieve of dyspnea. Patient was started on regular effective haemodialysis and pleural effusion did not recur during follow up. Loculated pleural effusion masquerading as mediastinal tumour had been reported but pleural effusion that conformed to the contour of a lung lobe is rare. This case highlights the atypical but unique presentation of a transudative pleural effusion and demonstrates the risk of repeated thoracocentesis complicating a simple clinical presentation.
    Matched MeSH terms: Thorax
  2. Ong NH, Chua CL, Liew JWK, Wan Sulaiman WY, Chan YF, Sam IC, et al.
    Acta Trop, 2020 Aug;208:105472.
    PMID: 32389451 DOI: 10.1016/j.actatropica.2020.105472
    Zika virus (ZIKV) is a mosquito-borne flavivirus with global impact since 2015. Although ZIKV was first isolated from Aedes aegypti in Malaysia in 1965, not much is known about the competency of Malaysian Ae. aegypti to ZIKV. To date only 9 cases of ZIKV have been reported in Malaysia despite the abundance of mosquito vectors. This study aimed to determine the susceptibility of Ae. aegypti to ZIKV, and the impact of sequential infections in Ae. aegypti mosquitoes with DENV serotype 2 (DENV-2) followed by ZIKV. Field-caught urban Ae. aegypti were orally challenged with a Martinique strain of ZIKV, and midgut, head/thorax and saliva were collected at 3, 7 and 14 days post-infection (dpi). At 14 dpi, ZIKV-exposed mosquitoes had infection and dissemination rates of 59% (n=10/17) and 90% (n=9/10), respectively. Average titres of 3.9 and 4.4 log pfu infectious ZIKV were recovered in midgut and head/thorax, respectively. In sequential infection, prior exposure of Ae. aegypti to DENV did not affect the subsequent ZIKV infection in head/thorax albeit with a low sample size. In conclusion, Malaysian urban Ae. aegypti is susceptible to the contemporary Asian lineage of ZIKV. The established and continuous DENV circulation in Ae. aegypti did not suppress ZIKV emergence in Malaysia. Other factors contributing to low level of ZIKV circulation in Malaysia remain to be explored.
    Matched MeSH terms: Thorax
  3. Rownose CS, Mohamad Saupi MS, Sharif SZ, Lah NASN
    Ann Med Surg (Lond), 2021 May;65:102322.
    PMID: 33996055 DOI: 10.1016/j.amsu.2021.102322
    Introduction: Ductal Eccrine carcinoma (DEC) is a rare primary cutaneous tumor that exhibits both squamous and adnexal ductal differentiation. Due to its rarity in clinical practice we present as case of DEC and a literature review on the latest management of this rare disease.

    Case presentation: We report a case 41 years old female presented with lesion on the scalp and sternal mass, increasing in size with itchiness and erythematous for 6 months duration. Further CECT scan of brain and neck shows features of malignant left frontal scalp lesion with poor plane with overlying skin and underlying skull bone and CECT of thorax shows a large, irregular heterogeneously enhancing mass with necrotic center noted at right hilar within superior segment of right lower lobe, encasing right middle and lower lobe bronchi. Wedge biopsy of scalp lesion showed an intradermal lesion extensively infiltrating by malignant gland accompanied by desmoplasia and the tumor cells are seen extending into the surgical margins suggestive of ductal eccrine carcinoma.Clinical Discussion:This case highlights the importance and challenges in achieving early diagnosis coupled with the scarcity of information on these leads to difficulty in managing this patient.

    Conclusion: In managing Ductal Eccrine Carcinoma tumor, standard method of treatment for has not been established. However, wide surgical excision is the treatment of choice for localized lesions. Regarding prognosis, there is conflicting data published which we describe in this article.

    Matched MeSH terms: Thorax
  4. Sulieman A, Mahmoud MZ, Serhan O, Alonazi B, Alkhorayef M, Alzimami K, et al.
    Appl Radiat Isot, 2018 Nov;141:261-265.
    PMID: 30054177 DOI: 10.1016/j.apradiso.2018.07.011
    Patient effective doses and the associated radiation risks arising from particular computed tomography (CT) imaging procedures are assessed. The objectives of this research are to measure radiation doses for patients and to quantify the radiogenic risks from CT brain and chest procedures. Patient data were collected from five calibrated CT modality machines in Saudi Arabia. The results are from a study of a total of 60 patients examined during CT procedures using the calibrated CT units. For CT brain and chest, the mean patient effective doses were 1.9 mSv (with a range of 0.6-2.5 mSv) and 7.4 mSv (with a range of 0.5-34.8 mSv) respectively. The radiogenic risk to patients ranged from between 10-5 and 10-4 per procedure. With 65% of the CT procedure cases diagnosed as normal, this prompts re-evaluation of the referral criteria. The establishment of diagnostic reference levels (DRL) and implementation of radiation dose optimisation measures would further help reduce doses to optimal values.
    Matched MeSH terms: Thorax
  5. Tamam N, Sulieman A, Omer H, Toufig H, Alsaadi M, Salah H, et al.
    Appl Radiat Isot, 2022 Dec;190:110452.
    PMID: 36183658 DOI: 10.1016/j.apradiso.2022.110452
    CT scanning deliver much higher radiation doses than planar radiological procedures, which puts patients to high risks. This study measures and evaluates patient doses during chest and abdomen computed tomography procedures. Particular attention is given to measuring the dose to the equivalent breast (mSv) and to estimate the associated risks of breast cancer to young female patients (15-35 years). Data was obtained from standard examinations from three hospitals. The measured values of CT dose indexes, CTDI (mGy) as well as exposure-related parameters were used for assessment. Breast and effective doses were extrapolated using a software. The results showed remarkable variations of the mean organ equivalent doses for similar CT examinations in the studied hospitals. This could be attributed to the variation in CT scanning imaging technique, and clinical indications. The average effective dose to the chest was 7.9 mSv (2.3-47.0 mSv) and for the abdomen the mean dose was 6.6 mSv, ranging from (3.3-27 mSv). The breast received equivalent doses from chest and abdomen procedures as follows: 10.2 (1.6-33 mSv) and 10.1(2.3-19 mS) Sv respectively. Each procedure yielded high risks of breast cancer for young females. Implementation of accurate referral criteria is recommended to avoid unnecessary breast radiation exposure.
    Matched MeSH terms: Thorax
  6. Pau CP, Chong KS, Yakub MA, Khalil AA
    PMID: 33947231 DOI: 10.1177/02184923211014004
    We present a 14-year-old boy with Loey-Dietz syndrome with severe mitral regurgitation, pectus excavatum and scoliosis. The Haller index was 25. The heart was displaced into the left hemithorax. The right inferior pulmonary vein was very close to the sternum and vertebral body. Single-stage surgery was performed. An osseo-myo-cutaneous pedicled flap was created by sterno-manubrial junction dislocation and rib resection with bilateral internal mammary arteries supplying the flap. Cardiopulmonary bypass and mitral valve replacement was performed. The defect was bridged with three straight plates. The flap was laid on top and anchored. Early outcome at three months was good.
    Matched MeSH terms: Thorax
  7. Chan CYW, Gani SMA, Lim MY, Chiu CK, Kwan MK
    Asian Spine J, 2019 Apr;13(2):216-224.
    PMID: 30472823 DOI: 10.31616/asj.2018.0151
    STUDY DESIGN: Prospective study.

    PURPOSE: To compare patients' and parents' perceptions of physical attributes (PAs) of adolescent idiopathic scoliosis (AIS) patients and to report any correlations between their perceptions and Scoliosis Research Society-22r (SRS-22r) scores.

    OVERVIEW OF LITERATURE: Few studies have looked into the differences between patients' and parents' perceptions of their appearance.

    METHODS: AIS patient-parent pairs (n=170) were recruited. The patients' and parents' perceptions of six PAs were evaluated: waist asymmetry (WA), rib hump (RH), shoulder asymmetry (SA), neck tilt, breast asymmetry (BrA), and chest prominence. These PAs were ranked, and an aggregate PA (Agg-PA) score was derived from a score assigned to the attribute (6 for the most important PA and 1 for the least important). The patients also completed the SRS-22r questionnaire.

    RESULTS: Ninety-nine patients (58.2%) and 71 patients (41.8%) had thoracic and lumbar major curves, respectively. WA was ranked first by 54 patients (31.8%) and 50 parents (29.4%), whereas RH was ranked first by 50 patients (29.4%) and 38 parents (22.4%). The overall Agg-PA scores were similar for patients and parents (p>0.05). However, for thoracic major curves (TMCs) >40°, a significant difference was noted between the Agg-PA scores of patients and parents for SA (3.5±1.6 vs. 4.2±1.6, p=0.041) and BrA (3.0±1.6 vs. 2.2±1.3, p=0.006). For TMCs <40°, a significant difference was found between the Agg-PA scores of patients and parents for WA (3.7±1.6 vs. 4.4±1.5, p=0.050). BrA was negatively correlated with total SRS-22r score.

    CONCLUSIONS: There were no significant differences between patients and parents in their ranking of the most important PAs. For TMCs >40°, there were significant differences in the Agg-PA for SA and BrA. Pa¬tients were more concerned about BrA and parents were more concerned about SA. Patients' perception of the six PAs had weak correlation with SRS-22r scores.

    Matched MeSH terms: Thorax
  8. Ohn MH, Ohn KM
    BMJ Case Rep, 2021 May 31;14(5).
    PMID: 34059541 DOI: 10.1136/bcr-2020-241408
    Poland's syndrome (PS) is a rare developmental anomaly that can manifest mild (pectoralis muscles involvement) to severe deformities (rib hypoplasia and hand deformities). We report a case of 69-year-old man who presented to the emergency department with a traumatic chest injury after a fall. It was initially thought to have a significant chest injury as the trauma survey revealed a palpable defect and tenderness in the right anterior chest wall. There was also a symbrachydactyly deformity in the right hand. CT of the chest showed lack of right pectoralis muscles, which were consistent with PS. This case highlights the importance of gathering detail history in adult trauma patients such as congenital disorder especially in the presence of bony deformity. With possibilities of several traumatic conditions in trauma patients eliminated, one can expand the non-traumatic differential, keeping in mind the possibility of a congenital disorder that can mimic traumatic chest injury.
    Matched MeSH terms: Thorax
  9. Bux S, Mohd Ramli N, Ahmad Sarji S, Kamarulzaman A
    Biomed Imaging Interv J, 2010 Oct-Dec;6(4):e35.
    PMID: 21611071 MyJurnal DOI: 10.2349/biij.6.4.e35
    This is a retrospective descriptive study of the chest imaging findings of 118 patients with confirmed A(H1N1) in a tertiary referral centre. About 42% of the patients had positive initial chest radiographic (CXR) findings. The common findings were bi-basal air-space opacities and perihilar reticular and alveolar infiltrates. In select cases, high-resolution computed tomography (CT) imaging showed ground-glass change with some widespread reticular changes and atelectasis.
    Matched MeSH terms: Thorax
  10. Ramanaidu S, Sta Maria R, Ng Kh, George J, Kumar G
    Biomed Imaging Interv J, 2006 Jul;2(3):e35.
    PMID: 21614244 MyJurnal DOI: 10.2349/biij.2.3.e35
    A study of radiation dose and image quality following changes to the tube potential (kVp) in paediatric chest radiography.
    Matched MeSH terms: Thorax
  11. Sabih D, Ahmad E, Sabih A, Sabih Q
    Biomed Imaging Interv J, 2010 10 01;6(4):e38.
    PMID: 21611074 DOI: 10.2349/biij.6.4.e38
    The authors report a case of a cephalopagus conjoined twin that was diagnosed at 29 weeks of gestation despite the mother having had two ultrasounds done previously. The fetus had one head and face, fused thoraces, common umbilicus but had two pelvises and two sets of genitalia. The fetus had four normally formed legs and arms.Antenatal ultrasound images are supplemented by post natal photographs. A review of literature, clues to ultrasound diagnosis and possible causes of missing this significant abnormality until the 3rd trimester are discussed.
    Matched MeSH terms: Thorax
  12. Alamgir Chowdhury, M., Farid Hossain Chowdhury, Khaled Bin Shahabuddin, Tofazzal Hossain, A.B.M., Shaila Kabir
    MyJurnal
    Complete or partial restriction of the vocal cords usually occurs due to cancer, neurologic causes or mechanical causes like huge neck mass, trauma to the neck, viral infection, and sometimes iatrogenic during surgery. Bilateral vocal cord palsy is a severe condition that can lead to significant problems in breathing, speaking, and swallowing. If any patient presents with stridor, it requires urgent surgical airway management followed by specific treatment. A case of viral bilateral abductor vocal cord palsy in a 41-year-old female is reported here. The patient presented with stridor, and immediate tracheostomy was done. The stridor developed first 3 months earlier followed by cold and fever for a week. The stridor worsened gradually and leads to a state of commencing immediate tracheostomy. There was no history of trauma to the neck or any neck surgery. All basic laboratory blood test was within the normal limit. The laryngoscopic examination showed both vocal cords were immobile and almost median position with a small gap at the posterior commissure. Chest and neck plain X-ray along with computed tomography scan of neck was normal which ruled out the other causes of bilateral vocal cord palsy. The patient subsequently underwent successful left posterior cordectomy by laser, and decannulation of tracheostomy was done, known as Kashima operation.
    Matched MeSH terms: Thorax
  13. Hanafi HR, Zakaria ZA
    Case Rep Obstet Gynecol, 2017;2017:9821213.
    PMID: 29348951 DOI: 10.1155/2017/9821213
    Thoracoschisis is a rare congenital malformation characterized by herniation of the abdominal content through a defect in the thorax. There are previously 12 reported cases, most discussing the postnatal findings and management. Here we describe a case of left thoracoschisis with associated upper limb abnormality which was diagnosed antenatally with the aid of 3D ultrasound.
    Matched MeSH terms: Thorax
  14. Ong PT, Yong JC, Chin KY, Hii YS
    Chemosphere, 2011 Jul;84(5):578-84.
    PMID: 21529890 DOI: 10.1016/j.chemosphere.2011.03.059
    Understanding on the bioaccumulation and depuration of PAHs (polycyclic aromatic hydrocarbons) in Penaeus monodon is important in seafood safety because it is one of the most popular seafood consumed worldwide. In this study, we used anthracene as the precursor compound for PAHs accumulation and depuration in the shrimp. Commercial feed pellets spiked with anthracene were fed to P. monodon. At 20 mg kg(-1) anthracene, P. monodon accumulated 0.1% of the anthracene from the feed. P. monodon deputed the PAH two times faster than its accumulation. The shrimp reduced its feed consumption when anthracene content in the feed exceeded 20 mg kg(-1). At 100 mg kg(-1) anthracene, P. monodon started to have necrosis tissues on the posterior end of their thorax. The bioaccumulation factor (BAF), uptake rate constant (k(1)) and depuration rate constant (k(2)) of anthracene in P. monodon were 1.15×10(-3), 6.80×10(-4) d(-1) and 6.28×10(-1) d(-1), respectively. The depuration rate constant is about thousand times higher than the uptake rate constant and this indicated that this crustacean is efficient in depurating hydrocarbons from their tissue.
    Matched MeSH terms: Thorax/drug effects; Thorax/metabolism; Thorax/pathology
  15. Katijjahbe MA, Denehy L, Granger CL, Royse A, Royse C, Logie S, et al.
    Clin Rehabil, 2020 Jan;34(1):132-140.
    PMID: 31610700 DOI: 10.1177/0269215519879476
    OBJECTIVE: The aim of this study was to investigate the psychometric properties of the shortened version of the Functional Difficulties Questionnaire (FDQ).

    DESIGN: This is a multisite observational study.

    SETTING: The study was conducted in four tertiary care hospitals in Australia.

    SUBJECTS: A total of 225 participants, following cardiac surgery, were involved in the study.

    INTERVENTION: Participants completed the original 13-item FDQ and other measures of physical function, pain and health-related quality of life.

    METHOD: Item reduction was utilized to develop the shortened version. Reliability was evaluated using intraclass correlation coefficients (ICCs), the smallest detectable change and Bland-Altman plots. The validity and responsiveness were evaluated using correlation. Anchor and distribution-based calculation was used to calculate the minimal clinical important difference (MCID).

    RESULTS: Item reduction resulted in the creation of a 10-item shortened version of the questionnaire (FDQ-s). Within the cohort of cardiac surgery patient, the mean (SD) for the FDQ-s was 38.7 (19.61) at baseline; 15.5 (14.01) at four weeks and 7.9 (12.01) at three months. Validity: excellent internal consistency (Cronbach's α > 0.90) and fair-to-excellent construct validity (>0.4). Reliability: internal consistency was excellent (Cronbach's α > 0.8). The FDQ-s had excellent test-retest reliability (ICC = 0.89-0.92). Strong responsiveness overtime was demonstrated with large effect sizes (Cohen's d > 1.0). The MCID of the FDQ-s was calculated between 4 and 10 out of 100 (in cm).

    CONCLUSION: The FDQ-s demonstrated robust psychometric properties as a measurement tool of physical function of the thoracic region following cardiac surgery.

    Matched MeSH terms: Thorax/physiopathology*
  16. Kah TA, Yong KC, Annuar FH
    Clin Pract, 2011 Jul 01;1(3):e67.
    PMID: 24765328 DOI: 10.4081/cp.2011.e67
    We report a case of 10-year-old Indian girl with history of multiple superficial angiomyxoma, presented with three months history of painless right upper lid swelling. There were no visual dysfunctions. Previously, the patient had multiple superficial angiomyxoma (left pinna, left upper cheek, left upper limb, chest, right axilla, hard palate) and epidermal cyst (chin). The histopathological specimens were negative to S-100 protein antibody. Systemic review and family history was unremarkable. Excision biopsy and upper lid reconstruction were performed. Intraoperatively the tumor was multilobulated, firm, well encapsulated and did not invade the underlying tarsal plate. Histopathological features of the upperlid tumor were consistent with nerves sheath myxoma (neurothekeoma). To the best of the authors' knowledge, this is the first reported case of neurothekeoma in association with multiple superficial angiomyxoma.
    Matched MeSH terms: Thorax
  17. Cho YH, Seo JB, Lee SM, Kim N, Yun J, Hwang JE, et al.
    Eur Radiol, 2021 Oct;31(10):7316-7324.
    PMID: 33847809 DOI: 10.1007/s00330-021-07747-7
    OBJECTIVES: To apply radiomics analysis for overall survival prediction in chronic obstructive pulmonary disease (COPD), and evaluate the performance of the radiomics signature (RS).

    METHODS: This study included 344 patients from the Korean Obstructive Lung Disease (KOLD) cohort. External validation was performed on a cohort of 112 patients. In total, 525 chest CT-based radiomics features were semi-automatically extracted. The five most useful features for survival prediction were selected by least absolute shrinkage and selection operation (LASSO) Cox regression analysis and used to generate a RS. The ability of the RS for classifying COPD patients into high or low mortality risk groups was evaluated with the Kaplan-Meier survival analysis and Cox proportional hazards regression analysis.

    RESULTS: The five features remaining after the LASSO analysis were %LAA-950, AWT_Pi10_6th, AWT_Pi10_heterogeneity, %WA_heterogeneity, and VA18mm. The RS demonstrated a C-index of 0.774 in the discovery group and 0.805 in the validation group. Patients with a RS greater than 1.053 were classified into the high-risk group and demonstrated worse overall survival than those in the low-risk group in both the discovery (log-rank test, < 0.001; hazard ratio [HR], 5.265) and validation groups (log-rank test, < 0.001; HR, 5.223). For both groups, RS was significantly associated with overall survival after adjustments for patient age and body mass index.

    CONCLUSIONS: A radiomics approach for survival prediction and risk stratification in COPD patients is feasible, and the constructed radiomics model demonstrated acceptable performance. The RS derived from chest CT data of COPD patients was able to effectively identify those at increased risk of mortality.

    KEY POINTS: • A total of 525 chest CT-based radiomics features were extracted and the five radiomics features of %LAA-950, AWT_Pi10_6th, AWT_Pi10_heterogeneity, %WA_heterogeneity, and VA18mm were selected to generate a radiomics model. • A radiomics model for predicting survival of COPD patients demonstrated reliable performance with a C-index of 0.774 in the discovery group and 0.805 in the validation group. • Radiomics approach was able to effectively identify COPD patients with an increased risk of mortality, and patients assigned to the high-risk group demonstrated worse overall survival in both the discovery and validation groups.

    Matched MeSH terms: Thorax
  18. Moey, Soo-Foon, Nur Farah Hani Muhd Jaafar, Nursyahirah Saidin
    MyJurnal
    Introduction: Various medium and high tube potentials were utilized to conduct chest x-rays. There
    are advantages and disadvantages with regards to image quality and radiation dose when using
    medium and high kilovoltage (kVp) technique. However, radiographers have misconstrued
    understanding pertaining to the choice of tube potential as well as grid usage when performing chest radiography. Methods: The experimental study was conducted using the PBU-50 phantom by exposing it with medium kVp utilizing grid and non-grid as well as high kVp with grid. All images obtained were evaluated using the modified evaluation criteria for PA chest established by the Commission of European Communities, 1996 whilst the dose area product (DAP) was determined using the Dose Area Product (DAP) meter. The value obtained from the DAP meter was converted to entrance surface dose (ESD) usingCALDOSE_X5.0 software and mathematical formula. Results: The Wilcoxon Signed-Rank Test indicated a significant difference in ESD when using medium and high kVp; Z= -2.666, p
    Matched MeSH terms: Thorax
  19. Mubarak, M.Y.
    MyJurnal
    The azygos system enlarges in cases of obstruction to the superior vena cava or inferior vena cava and result in increase blood flow through the system. Azygos continuation of the inferior vena cava is usually congenital and asymptomatic. The azygos vein is the sole drainage of the blood from the lower half of the body to the heart. It is crucial to identify the anomaly as it might involve in the surgical planning of tumours in the thorax or abdomen. Computed Tomography is a non-invasive technique and provide important information about the tumour and the vascular anomaly.
    Matched MeSH terms: Thorax
  20. Amran, A.R.
    MyJurnal
    Pulmonary sequestration is defined as a segment of ç separated from the tracheobronchial tree and receiving its blood supply from a systemic artery rather than a pulmonary arterial branch. Classically, it has been described in two forms: (1) intralobar sequestration (ILS), in which the sequestrated part of lung lies within normal pulmonary visceral pleura, and (2) extralobar sequestration (ELS), in which the abnormal segment of lung is completely separate and enclosed in its own pleural investment. The term sequestration was coined by Pryce in 1946 to describe a disconnected bronchopulmonary mass or cyst with an anomalous systemic artery. Since this original description, terminology has become confusing as investigator has recognized many variants of sequestration not strictly meeting the original description. The spectrum now recognized as a continuum, with normal vessels supplying abnormal lung at one end and abnormal vessels supplying normal lung at the other end. Recently, we incidentally found an asymptomatic, intralobar pulmonary sequestration during CT pneumocolon.
    Matched MeSH terms: Thorax
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