MyMedR

Fulltext Biomechanics Analysis of the Firefighters' Thorax Movement on Personal Protective Equipment during Lifting Task Using Inertial Measurement Unit Motion Capture

Yunus MNH, Jaafar MH, Mohamed ASA, Azraai NZ, Amil N, Zein RM

Int J Environ Res Public Health, 2022 Oct 31;19(21).

PMID: 36361112 DOI: 10.3390/ijerph192114232

Back injury is a common musculoskeletal injury reported among firefighters (FFs) due to their nature of work and personal protective equipment (PPE). The nature of the work associated with heavy lifting tasks increases FFs' risk of back injury. This study aimed to assess the biomechanics movement of FFs on personal protective equipment during a lifting task. A set of questionnaires was used to identify the prevalence of musculoskeletal pain experienced by FFs. Inertial measurement unit (IMU) motion capture was used in this study to record the body angle deviation and angular acceleration of FFs' thorax extension. The descriptive analysis was used to analyze the relationship between the FFs' age and body mass index with the FFs' thorax movement during the lifting task with PPE and without PPE. Sixty-three percent of FFs reported lower back pain during work, based on the musculoskeletal pain questionnaire. The biomechanics analysis of thorax angle deviation and angular acceleration has shown that using FFs PPE significantly causes restricted movement and limited mobility for the FFs. As regards human factors, the FFs' age influences the angle deviation while wearing PPE and FFs' BMI influences the angular acceleration without wearing PPE during the lifting activity.

Matched MeSH terms: Thorax

Fulltext Eye tracker as an implied social presence: awareness of being eye-tracked induces social-norm-based looking behaviour

Wong HK, Stephen ID

J Eye Mov Res, 2019 Aug 05;12(2).

PMID: 33828723 DOI: 10.16910/jemr.12.2.5

Human behaviour is not only influenced by the physical presence of others, but also implied social presence. This study examines the impact of awareness of being eye-tracked on eye movement behaviour in a laboratory setting. During a classic yes/no face recognition task, participants were made to believe that their eye movements were recorded (or not recorded) by eye trackers. Their looking patterns with and without the awareness of being eye-tracked were compared while perceiving social (faces, faces-and-bodies) and non-social (inanimate objects) video stimuli. Area-of-interest (AOI) analysis revealed that misinformed participants (who were not aware that their eye movements were being recorded) looked more at the body (chest and waist) compared to informed participants (who believed they were being eye-tracked), whereas informed participants fixated longer on the mouth and shorter on the eyes of female models than misinformed participants did. These findings highlight the potential impact of an awareness of being eye tracked on one's eye movement pattern when perceiving a social stimulus. We conclude that even within laboratory settings an eye tracker may function as an implied social presence that leads individuals to modify their eye movement behaviour according to socially-derived inhibitory norms.

Matched MeSH terms: Thorax

Fulltext A case of primary pleural synovial sarcoma with endobronchial recurrence

Wan JL, Lam YF, Foong KW, Abdul Ghani N, Lachmanan K

Respirol Case Rep, 2020 Apr;8(3):e00547.

PMID: 32166036 DOI: 10.1002/rcr2.547

Primary pleural synovial sarcoma (PPSS) is an extremely rare malignancy without a known cause. The diagnosis is made after excluding metastasis from an extra-thoracic sarcoma. We report a case of a 67-year-old gentleman who presented with an incidental finding of a left lung mass on a routine chest X-ray. A computed tomography (CT) of the thorax and whole-body positron emission tomography (PET)-CT was done confirming a left lung mass with no other extra-thoracic involvement. A lobectomy was performed with a diagnostic and therapeutic intent. The histopathological examination and immunohistochemistry study revealed a pleural-based tumour with features suggestive of synovial sarcoma. Subsequently, he underwent post-operative radiotherapy. However, three months later, he developed an endobronchial recurrence, complicated by post-obstructive pneumonia resulting in his demise. This case highlights a rare form of malignancy with a rare site of recurrence.

Matched MeSH terms: Thorax

Fulltext Tracheotomy: an alternative for tracheobronchial foreign body removal

Tang CL, Lee SC, Mohamad Lal A, Thomas RA, Ngui LX, Lim LY

Med J Malaysia, 2014 Oct;69(5):241-3.

PMID: 25638243 MyJurnal

A 6 years old girl accidentally aspirated a plastic whistle while playing. Computed Tomography of thorax showed foreign body at carina level. Rigid bronchoscope under general anesthesia was attempted but unable to extract the whistle through vocal cord. Tracheostomy was later performed and foreign body was removed.

Matched MeSH terms: Thorax

The Cobblestone Heart

Tan WJ, Suz CS, Azza O, Zuki M

Med J Malaysia, 2021 03;76(2):241-244.

PMID: 33742636

Sarcoidosis is a chronic, multisystem disorder. A 38 years old lady presented at Hospital Raja Perempuan Zainab II, Kota Bharu ,Malaysia with cough and breathless for 2 months and constitutional symptoms of weight loss and loss of appetite. She was initially treated as smear negative pulmonary tuberculosis for 5 months. However, her clinical condition deteriorated with worsening New York Heart Association (NYHA) class 1 to class 3. Subsequently, workout of computed tomography( CT) thorax showed multiple perilymphatic distribution of nodules and multiple mediastinal lymphadenopathy coupled with pleura biopsy showed non caseating granuloma and cardiac magnetic resonance imaging (MRI) with positive late gadolinium enhancement revised the diagnosis of pulmonary sarcoidosis with cardiac involvement. Patient's functional status and cough improved with immunosuppresant was given in tapering dose fashion.

Matched MeSH terms: Thorax

Assessment of breast dose and cancer risk for young females during CT chest and abdomen examinations

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

Occult primary spontaneous pneumothorax

Tai, Yong-Ting, Tong, Chin-Voon

International e-Journal of Science, Medicine & Education, 2017;11(2):30-33.

MyJurnal

We report a case of occult primary spontaneous
pneumothorax in a 30 years-old woman. She
developed symptoms and signs that were suggestive of
pneumothorax. However, chest radiograph failed to
reveal pneumothorax. Therefore, we proceeded with
computed tomography (CT) thorax which revealed
significantly moderate right pneumothorax. The
diagnostic approach and the management of this case
are discussed.

Matched MeSH terms: Pneumothorax; Thorax

Fulltext Primary mediastinal myxoid liposarcoma

Suzana, A.H., Hasyma, A.H., Suraini, M.S., Saiful Nizam, A.R.

Malaysian Journal of Medicine and Health Sciences, 2013;9(2):77-80.

MyJurnal

In this study, we report an extremely rare case of liposarcoma which arises primarily in mediastinum. The patient appeared to have progressive dyspnoea and prolonged cough for a duration of one year. Chest radiograph and Computed Tomography (CT) of the thorax revealed a large right mediastinal mass with fatty component. It was confirmed to be primary liposarcoma on histopathological examination.

Matched MeSH terms: Thorax

CT examination effective doses in Saudi Arabia

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

Fulltext Spontaneous oesophageal perforation: a case report

Shu Ann Hon, Jan Jan Chai, Lian Thai Lee, Qin Jian Low

Malaysian Journal of Medicine and Health Sciences, 2020;16(2):326-328.

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: Pneumothorax; Thorax

Fulltext Emergency lung-sparing surgical repair of a complete transection of the right mainstem bronchus due to blunt chest trauma

Sachithanandan A, Tan YS, Abdul Muis J, Rapi AR, Mohd Arif MN, Badmanaban B, et al.

Med J Malaysia, 2014 Apr;69(2):92-4.

PMID: 25241820 MyJurnal

Traumatic chest injury with complete tracheo- bronchial disruption is uncommon and occurs in approximately 1% of motor vehicle accidents (MVA) (1,2). Such injuries carry a high mortality and patients rarely survive transfer to hospital. A high index of suspicion facilitates early diagnosis. Early operative intervention is vital for survival. We describe a rare case of traumatic complete disruption of the right mainstem bronchus (RMB) due to blunt chest trauma. The transected airway was reanastomosed emergently avoiding a lung resection.

Matched MeSH terms: Thorax

Fulltext Ultrasound diagnosis of cephalopagus conjoined twin pregnancy at 29 weeks

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

Surgery at a chest hospital in Malaya

SNELLING MR, McGLADDERY HM, LIM G, KUMAR JK, HOR KS

Tubercle, 1960 Apr;41:103-8.

PMID: 13832282

Matched MeSH terms: Thorax*

Fulltext Anterior penetrating chest injury with left ventricular thrombus

Ruth Sabrina, S., Nik Azlan, N.M., Adi, O.

Medicine & Health, 2013;8(1):28-32.

MyJurnal

Urban cities are synonym with a high incidence of penetrating chest injuries either from accidents or interpersonal violence. The outcome of penetrating chest wound can vary from immediate death to a prolonged morbidity. We here report a case of 39-year-gentleman who presented to Emergency Department Hospital Raja Permaisuri Bainun, Ipoh, Perak after being stabbed to the chest. His anterior penetrating chest wound was located at the 5th intercostal space medial to the midclavicular line. The stab wound penetrated the myocardium, causing minimal myocardial rupture. He also suffered from left haemothorax and hemopericardium. The haemothorax was drained with insertion of 32 French chest tube. The patient was admitted under the cardiothoracic team and discharged five days later without surgical intervention. He presented again to the Emergency Department with complains of shortness of breath and pleuritic pain. A left ventricular thrombus was detected via echocardiography. Unfortunately, he took his own discharge. Five days later he came again to Emergency Department with sporadic of loss of vision. The mural thrombus dislodged and embolized to the retinal artery causing amaurosis fugax. The patient was treated with aspirin 150mg and his symptoms subsequently resolved.

Matched MeSH terms: Hemothorax; Thorax

Fulltext Aggressive scalp and sternal lesion: A presentation of rare case of metastatic eccrine carcinoma

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

Fulltext Evaluation of radiation dose and image quality following changes to tube potential (kVp) in conventional paediatric chest radiography

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

Fulltext A survey on working postures among Malaysian industrial workers

Raemy Md. Zein, Noorul Azreen Azis, Isa Halim, Adi Saptari, Seri Rahayu Kamat

Journal of Occupational Safety and Health, 2015;12(1):125-131.

MyJurnal

Working in a safe working posture is a necessity to enhance occupational health of industrial workers. Poor
working posture may lead to injuries, discomfort and fatigue to the workers. The objective of this study is to survey the
postures practised by the Malaysian industrial workers. A questionnaire survey was performed among 282 Malaysian
industrial workers in 10 different industries. From the answered questionnaire, it was observed that shoulder at chest
level (30.1%), back in a bent forward (33.3%) and lifting heavy load (44.7%) are the major work postures practised by
most of industrial workers. This survey identifies that working with shoulder and hand at chest level and back region
moderately bent forward is the main working posture practice by worker. Workers also reported lifting load below 5 kg
at the workstation. This survey recommended for industrial workers to be aware of the comfortable working posture
to avoid injury.

Matched MeSH terms: Thorax

Single-stage open repair of severe asymmetric pectus excavatum and mitral valve replacement in connective tissue disease

Pau CP, Chong KS, Yakub MA, Khalil AA

Asian Cardiovasc Thorac Ann, 2021 May 04.

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

Evaluation of a new predictive equation for automated calculation of size-specific dose estimate (SSDE) in CT imaging

Osman ND, Abdulkadir MK, Shuaib IL, Nasirudin RA

Radiography (Lond), 2024 Jan;30(1):237-244.

PMID: 38035439 DOI: 10.1016/j.radi.2023.11.012

INTRODUCTION: The adoption of size-specific dose estimate (SSDE) in clinical practice is still limited owing to the tedious and complex manual measurement of individual patient size for the clinical calculation of SSDE. Thus, the automation of SSDE is imperative. This study aims to evaluate a predictive equation for the automated calculation of SSDE.

METHODS: A user-friendly software was developed to accurately predict the individual size-specific dose estimation of paediatric patients undergoing computed tomography (CT) scans of the head, thorax, and abdomen. The software includes a calculation equation developed based on a novel SSDE prediction equation that used a population's pre-determined percentage difference between volume-weighted computed tomography dose index (CTDIvol) and SSDE with age. American Association of Physicists in Medicine (AAPM RPT 204) method (manual) and segmentation-based SSDE calculators (indoseCT and XXautocalc) were used to assess the proposed software predictions comparatively.

RESULTS: The results of this study show that the automated equation-based calculation of SSDE and the manual and segmentation-based calculation of SSDE are in good agreement for patients. The differences between the automated equation-based calculation of SSDE and the manual and segmentation-based calculation are less than 3%.

CONCLUSION: This study validated an accurate SSDE calculator that allows users to enter key input values and calculate SSDE.

IMPLICATION FOR PRACTICE: The automated equation-based SSDE software (PESSD) seems a promising tool for estimating individualised CT doses during CT scans.

Matched MeSH terms: Thorax

Bioaccumulation and depuration of anthracene in Penaeus monodon (Fibricius) through food ingestion

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

Displaying publications 1 - 20 of 53 in total