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  1. Chuah JS, Wong WL, Bakin S, Lim RZM, Lee EP, Tan JH
    Ann Med Surg (Lond), 2021 May;65:102294.
    PMID: 33948169 DOI: 10.1016/j.amsu.2021.102294
    Introduction and importance: A totally implantable venous access device (TIVAD), also referred to as 'chemoport', is frequently used for oncology patients. Chemoport insertion via the subclavian vein access may compress the catheter between the first rib and the clavicle, resulting in pinch-off syndrome (POS). The sequela includes catheter transection and subsequent embolization. It is a rare complication with incidence reported to be 1.1-5.0% and can lead to a devastating outcomes.

    Case presentation: 50-year-old male had his chemoport inserted for adjuvant chemotherapy 3 years ago. During the removal, remaining half of the distal catheter was not found. There was no difficulties during the removal. Chest xray revealed that the fractured catheter had embolized to the right ventricle. Further history taking, he did experienced occasional palpitation and chest discomfort for the past six months. Electrocardiogram and cardiac enzymes were normal. Urgent removal of the fractured catheter via the percutaneous endovascular approach, under fluoroscopic guidance by an experience interventional radiologist was done. The procedure was successful without any complication. Patient made an uneventful recovery. He was discharged the following day, and was well during his 3rd month follow up.

    Conclusion: Early detection and preventive measures can be done to prevent pinch-off syndrome. Unrecognized POS can result in fatal complications such as cardiac arrhythmia and septic embolization. Retrieval via the percutaneous endovascular approach provide excellent outcome in the case of embolized fractured catheter.

  2. Lim RZM, Ooi JY, Tan JH, Tan HCL, Sikin SM
    Int J Surg Oncol, 2019;2019:6109643.
    PMID: 30941211 DOI: 10.1155/2019/6109643
    Introduction: Therapeutic nodal dissection is still the mainstay of treatment for patients with lymph node metastases in many centres. The local data, however, on the outcome of therapeutic LND remains limited. Hence, this study aims to inform practice by presenting the outcomes of LND for thyroid cancer patients and our experience in a tertiary referral centre.

    Methods: This is a single-centre retrospective observational study in a Malaysian tertiary endocrine surgery referral centre. Patients who underwent total thyroidectomy with lymph node dissection between years 2013 and 2015 were included and electronic medical records over a 3-year follow-up period were reviewed. The outcomes of different lymph node dissection (LND), including central neck dissection, lateral neck dissection, or both, were compared.

    Results: Of the 43 subjects included, 28 (65.1%) had Stage IV cancer. Among the 43 subjects included, 8 underwent central LND, and 15 had lateral LND while the remaining 20 had dissection of both lateral and central lymph nodes. Locoregional recurrence was found in 16 (37.2%) of our subjects included, with no statistical difference between the central (2/8), lateral (7/15), and both (7/20). Postoperative hypocalcaemia occurred in 7 (16.3%) patients, and vocal cord palsy occurred in 5 (11.6%), whereas 9 patients (20.9%) required reoperation. Death occurred in 4 of our patients.

    Conclusion: High recurrence and reoperative rates were observed in our centre. While the routine prophylactic LND remains controversial, high risk patients may be considered for prophylactic LND. The long-term risk and benefit of prophylactic LND with individualised patient selection in the local setting deserve further studies.

  3. Low CX, Kok YQ, Loo XS, Ngim CF, Lim RZM, Quah SY
    Med J Malaysia, 2023 Sep;78(5):661-668.
    PMID: 37775495
    INTRODUCTION: Burn injuries incur not just significant morbidity but also long-term psychosocial impact. This study aims to identify the clinico-demographics of children hospitalised for burns and factors associated with prolonged hospitalisation.

    MATERIALS AND METHODS: Written medical records of burn patients admitted to the Sultanah Aminah Hospital paediatric surgical ward, from January 2016 to December 2018, were retrospectively reviewed. Details on the patients' socio-demographic background, burn injuries, management and outcomes were recorded and analysed with logistic regression.

    RESULTS AND CONCLUSION: Of the 255 children included in the study, the majority were males (62.7%), children aged between 1 to 3 years (43.1%), and of the Malay ethnic group (83.1%). The commonest injury mechanism was scalds burns (81.2%). Staphylococcus aureus remained the commonest organism cultured from paediatric burn wounds. Most patients (66.4%) were hospitalised for less than 1 week. A significant number of patients experienced complications from their injuries. Multivariate analysis showed burns affecting total body surface area > 10% (adjusted OR, 13.45 [95% CI 6.25 - 28.96]; p = < 0.001) and non-scald burns (adjusted OR, 2.70 [95% CI 1.12 - 6.50]; p = 0.027) were the two main factors associated with prolonged hospitalisation of more than 1 week. These findings describing the epidemiology and outcomes of paediatric burn cases in a tertiary centre in Malaysia may inform future practice. More importantly, the information may contribute to the identification of at-risk populations and advise the development of effective prevention strategies to reduce the incidence and morbidity associated with paediatric burns in this region.

  4. Lim RZM, Lee T, Ng JYZ, Quek KF, Abdul Wahab N, Amansah SL, et al.
    J Pediatr Surg, 2018 Nov;53(11):2312-2317.
    PMID: 29459045 DOI: 10.1016/j.jpedsurg.2018.01.004
    BACKGROUND/PURPOSE: Although ultrasound-guided hydrostatic reduction (USGHR) is increasingly used in managing pediatric intussusception, there is limited literature concerning its use in Malaysia. We aim to examine the experience and factors associated with the effectiveness of USGHR using water.

    METHODS: This is a single-center retrospective observational study in a Malaysian tertiary referral center. Children with intussusception admitted between year 2012 and 2016 were included and medical records reviewed. Factors associated with success or failure of USGHR were identified using multivariable logistic regression.

    RESULTS: Of the 172 cases included, 151 cases (87.8%) underwent USGHR, of whom 129 cases were successfully reduced (success rate of 85.4%). One perforation (0.7%) was reported. Age more than 3years old (aOR=7.16; 95% CI=1.07-47.94; p=0.042), anemia (aOR=10.12; 95% CI=1.12-91.35; p=0.039), thrombocytosis (aOR=11.21; 95% CI=2.06-64.33; p=0.005) and ultrasound findings of free fluid (aOR=9.39; 95% CI=1.62-54.38; p=0.012) and left-sided intussusception (aOR=8.18;95% CI=1.22-54.90, p=0.031) were independently associated with USGHR irreducibility. Symptom duration, blood in stool, vomiting and other clinical presentations, however, showed no association.

    CONCLUSIONS: USGHR with water is effective in the non-operative management of pediatric intussusception. Prolonged symptom duration need not necessarily preclude USGHR. The findings of anemia and thrombocytosis as independent predictors of USGHR irreducibility deserve further study.

    TYPE OF STUDY: Treatment study LEVEL OF EVIDENCE: III.

  5. Lim RZM, Tan JH, Raja Ram NK, Tan HCL, Ho IKE, Chuah JS, et al.
    World J Surg, 2024 Apr 02.
    PMID: 38563570 DOI: 10.1002/wjs.12162
    BACKGROUND: Limited data exists on Charlson's weighted index of comorbidity (WIC) predictability for postoperative outcomes following perforated peptic ulcer (PPU) surgery. This study assesses the utility of WIC and other predictive scores in forecasting both postoperative mortality and morbidity in PPU.

    MATERIALS & METHODS: Patients with PPUs operated between 2018 and 2021 in a Malaysian tertiary referral center were included. Clinical data were retrospectively analyzed for association with mortality and morbidity measured with the Comprehensive Complication Index (CCI). Predictability of WIC and other predictors were examined using area under receiver-operator characteristic (ROC) curve (AUC).

    RESULTS: Among 110 patients included, 18 died (16.4%) and 36 (32.7%) had significant morbidity postoperatively (High CCI, ≥26.2). Both mortality and high CCI were associated with age >65 years, female sex, comorbidities (diabetes mellitus, hypertension, and renal disease), and American Society of Anesthesiologist score >2. Most patients who died had renal dysfunction, metabolic acidosis, lactate >2 mmol/L upon presentation preoperatively. While surgery >24 h after presentation correlated with mortality and high CCI, the benefit of earlier surgery <6 h or <12 h was not demonstrated. WIC (AUC, 0.89; 95% CI, 0.81-0.99) showed similar predictability to Peptic Ulcer Perforation (PULP) (AUC, 0.97; 95% CI, 0.93-1.00) for mortality. PULP effectively predicted high CCI (AUC, 0.83; 95% CI, 0.73-0.93; p 

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