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  1. Diong NC, Dharmaraj B, Sathiamurthy N
    Med J Malaysia, 2020 07;75(4):445-446.
    PMID: 32724014
    Sleeve lobectomy is a lung sparing surgery and is the preferred alternative to pneumonectomy for centrally located tumours, which has less postoperative morbidity and mortality. Surgical approach for the technically demanding sleeve lobectomy evolved over the decades from conventional thoracotomy to video assisted thoracoscopic surgery (VATS) to uniportal VATS (uVATS) which allows for quicker recovery and less pain postoperatively. We report our very first successful uVATS sleeve right upper lobectomy performed in the Hospital Kuala Lumpur, Malaysia.
  2. Sathiamurthy N, Balasubbiah N, Dharmaraj B
    Asian Cardiovasc Thorac Ann, 2020 Oct;28(8):495-499.
    PMID: 32787442 DOI: 10.1177/0218492320950898
    BACKGROUND: The Covid-19 pandemic has caused changes in the surgical treatment of non-Covid patients, especially in thoracic surgery because most procedures are aerosol generating. Hospital Kuala Lumpur, where thoracic procedures are performed, was badly affected. We describe our experience in performing aerosol generating procedures safely in thoracic surgery during the Covid-19 era.

    METHODS: Medical records of patients who underwent thoracic surgery from March 18, 2020 to May 17, 2020 were reviewed retrospectively. All patients undergoing thoracic surgery were tested for Covid-19 using the reverse transcriptase polymerase chain reaction method. Patients with malignancy were observed for 10 to 14 days in the ward after testing negative. The healthcare workers donned personal protective equipment for all the cases, and the number of healthcare workers in the operating room was limited to the minimum required.

    RESULTS: A total of 44 procedures were performed in 26 thoracic surgeries. All of these procedures were classified as aerosol generating, and the mean duration of the surgery was 130 ± 43 minutes. None of the healthcare workers involved in the surgery were exposed or infected by Covid-19.

    CONCLUSION: Covid-19 will be a threat for a long time and thoracic surgeons must continue to provide their services, despite having to deal with aerosol generating procedures, in the new normal. Covid-19 testing of all surgical candidates, using the reverse transcriptase polymerase chain reaction, donning full personal protective equipment for healthcare workers, and carefully planned procedures are among the measures suggested to prevent unnecessary Covid-19 exposure in thoracic surgery.

  3. Diong NC, Dharmaraj B, Joseph CT, Sathiamurthy N
    Ann Thorac Med, 2020 01 02;15(1):38-40.
    PMID: 32002046 DOI: 10.4103/atm.ATM_296_19
    Mediastinal nonseminomatous germ cell tumor (NSGCT) is rare. NSGCT shows excellent response to cisplatin-based chemotherapy. However, some tumors continue to enlarge despite normal tumor markers after chemotherapy, a rare condition called growing teratoma syndrome (GTS). Recognition of this condition is imperative for prompt surgical resection to prevent further cardiopulmonary compression and to improve survival. Multidisciplinary team meeting is important for perioperative preparation and care to improve the outcome of this high-risk surgery. Here, we report two cases of mediastinal GTS and underwent surgical resection, of which one died of pericardial decompression syndrome and the other is well.
  4. Tan HL, Abd Rahman R, Md Tarekh NA, Kassim M, Sathiamurthy N, Nik Mohamad Kamil A, et al.
    Med J Malaysia, 2021 05;76(3):441-445.
    PMID: 34031351
    Hunter Syndrome is a genetic disease characterized by deficiency of Iduronate-2-Sulfatase enzyme activity, resulting in accumulation of glycoaminoglycans in various organs including the central airways. We report a case of severe tracheomalacia and airway stenosis at Hospital Sultanah Aminah, Johor Bahru, Malaysia requiring mechanical ventilation in a middle aged gentleman who was previously undiagnosed of mucopolysaccharidosis. The patient underwent emergency tracheostomy for failed intubation, when he presented with shortness of breath and acute respiratory failure. A contrast-enhanced computed tomography of the neck and thorax revealed that the trachea distal to the tracheostomy tube had collapsed with narrowed right and left main bronchus. These findings were confirmed via direct visualization of the airway through a flexible bronchoscopy. Eventually, a tracheal stenting were performed to maintain the airway patency and assist in weaning off from mechanical ventilation. Further investigations to identify the aetiology of the central airway stenosis revealed elevated urinary glycoaminoglycans and the absence of iduronate-2-Sulfatase activity tested on dried blood spots, thus confirming the diagnosis of Hunter Syndrome. Managing mucopolysacharidosis with central airway obstruction requires multidisciplinary team effort in handling the difficult airway, anaesthesiology risk, potential comorbidities and providing genetic counselling.
  5. Dharmaraj B, Diong NC, Shamugam N, Sathiamurthy N, Mohd Zainal H, Chai SC, et al.
    Indian J Thorac Cardiovasc Surg, 2021 Jan;37(1):82-88.
    PMID: 33442211 DOI: 10.1007/s12055-020-00972-7
    Chest wall resection is defined as partial or full-thickness removal of the chest wall. Significant morbidity has been recorded, with documented respiratory failure as high as 27%. Medical records of all patients who had undergone chest wall resection and reconstruction were reviewed. Patients' demographics, length of surgery, reconstruction method, size of tumor and chest wall defect, histopathological result, complications, duration of post-operative antibiotics, and hospital stay were assessed. From 1 April 2017 to 30 April 2019, a total of 20 patients underwent chest wall reconstructive surgery. The median age was 57 years, with 12 females and 8 males. Fourteen patients (70%) had malignant disease and 6 patients (30%) had benign disease. Nine patients underwent rigid reconstruction (titanium mesh for sternum and titanium plates for ribs), 6 patients had non-rigid reconstruction (with polypropylene or composite mesh), and 5 patients had primary closure. Nine patients (45%) required closure with myocutaneous flap. Complications were noted in 70% of patients. Patients who underwent primary closure had minor complications. In total, 66.7% of patients who had closure with either fasciocutaneous or myocutaneous flaps had threatened flap necrosis. Two patients developed pneumonia and 3 patients (15%) had respiratory failure requiring tracheostomy and prolonged ventilation. There was 1 mortality (5%) in this series. In conclusion, chest wall resections involving large defects require prudent clinical judgment and multidisciplinary assessments in determining the choice of chest wall reconstruction to improve outcomes.
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