1.Outcomes of Dose-Attenuated Docetaxel in Asian Patients with Castrate-Resistant Prostate Cancer.
Jia Wei ANG ; Min-Han TAN ; Miah Hiang TAY ; Chee Keong TOH ; Quan Sing NG ; Ravindran KANESVARAN
Annals of the Academy of Medicine, Singapore 2017;46(5):195-201
INTRODUCTIONHigh levels of toxicities have been observed when docetaxel is administered at the standard dose of 75 mg/mevery 3 weeks (Q3W) in the real-world treatment of Asian patients with metastatic castrate-resistant prostate cancer (CRPC). This study aimed to evaluate the efficacy and tolerability of 2 attenuated regimens more widely used in an Asian setting to minimise toxicity - 60 mg/mQ3W and weekly docetaxel (20 mg/mto 35 mg/m).
MATERIALS AND METHODSMedical records of 89 CRPC patients between December 2003 and April 2013 were reviewed. Pairwise statistical analysis was performed, comparing efficacy and safety outcomes of 75 mg/mQ3W and weekly docetaxel with 60 mg/mQ3W. Treatment endpoints used were prostate-specific antigen (PSA) response (decrease of ≥50% from baseline), pain improvement after cycle 2, overall survival, time to disease progression and radiological response.
RESULTSPatients who received docetaxel at 75 mg/mQ3W were younger than those who received 60 mg/mQ3W (62 years and 66 years, respectively;= 0.0489). Both groups had similar response rates. Compared with patients on 60 mg/mQ3W, more patients on weekly regimens were symptomatic at baseline (63.2% and 87.5%, respectively;= 0.0173). Longer overall survival was observed in the 60 mg/mQ3W arm than the weekly docetaxel arm (16.9 months and 10.6 months, respectively;= 0.0131), though other measures of response did not differ significantly.
CONCLUSIONOur data supports the use of 60 mg/mQ3W docetaxel which has similar efficacy and an acceptable toxicity profile compared to the standard 75 mg/mQ3W regimen. Weekly docetaxel has significant palliative benefits among symptomatic patients despite lower overall survival.
2.Cutaneous pseudolymphoma occurring after traumatic implantation of a foreign red pigment.
Wei Liang KOH ; Yong Kwang TAY ; Mark Jean Aan KOH ; Chee Seng SIM
Singapore medical journal 2013;54(5):e100-1
Cutaneous pseudolymphoma is an uncommon, benign lymphoproliferative disorder of the skin. Although this condition is most commonly idiopathic, its occurrence has been associated with cosmetic tattoos. We report a unique case of cutaneous pseudolymphoma that occured after accidental, traumatic inoculation of a red pigment in a healthy 33-year-old woman.
Adult
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Betamethasone
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analogs & derivatives
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therapeutic use
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Biopsy
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Coloring Agents
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adverse effects
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Female
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Forehead
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pathology
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Humans
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Lacerations
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Lymphoproliferative Disorders
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diagnosis
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etiology
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Pseudolymphoma
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chemically induced
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diagnosis
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Skin
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pathology
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Skin Diseases
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chemically induced
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diagnosis
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Triamcinolone Acetonide
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therapeutic use
3.Long-Term Oncological Safety of Minimally Invasive Hepatectomy in Patients with Hepatocellular Carcinoma: A Case-Control Study.
Stephen Ky CHANG ; Chee Wei TAY ; Liang SHEN ; Shridhar Ganpathi IYER ; Alfred Wc KOW ; Krishnakumar MADHAVAN
Annals of the Academy of Medicine, Singapore 2016;45(3):91-97
INTRODUCTIONMinimally invasive hepatectomy (MIH) for patients with hepatocellular carcinoma (HCC) is technically challenging, especially with large posteriorly located tumours or background of liver cirrhosis. This is a case-control study comparing the long-term oncological safety of HCC patients who underwent MIH and open hepatectomy (OH). Most of these patients have liver cirrhosis compared to other studies.
MATERIALS AND METHODSSixty patients were divided into 2 groups, 30 underwent MIH and 30 underwent OH for HCC resection. The patients in both groups were matched for extent of tumour resection, age and cirrhosis status. Patient characteristics, risk factors of HCC and all oncological data were studied.
RESULTSNegative resection margins were achieved in 97% of patients in both groups. The mean blood loss during surgery was significantly lower in the MIH group compared to the OH group (361 mL vs 740 mL; 95% CI, 222.2, 734.9; P = 0.04). Hospitalisation is significantly shorter in MIH group (7 days vs 11 days; 95% CI, 6.9, 12.2,; P = 0.04). Eight patients (27%) in the MIH group and 13 patients (43%) in the OH group developed HCC recurrence (P = 0.17). One, 3 and 5 years disease-free survival between MIH and OH groups are 76% vs 55%, 58% vs 47%, and 58% vs 39% respectively (P = 0.18). One, 3 and 5 years overall survival between MIH and OH groups are 93% vs 78%, 89% vs 70%, and 59% vs 65% respectively (P = 0.41).
CONCLUSIONMIH is a safe and feasible curative treatment option for HCC with similar oncological outcomes compared to OH. MIH can be safely performed to remove tumours larger than 5 cm, in cirrhotic liver, as well as centrally and posterior located tumours. In addition, MIH patients have significant shorter hospitalisation and intraoperative blood loss.
Blood Loss, Surgical ; Carcinoma, Hepatocellular ; complications ; pathology ; surgery ; Case-Control Studies ; Disease-Free Survival ; Hepatectomy ; methods ; Humans ; Laparoscopy ; Length of Stay ; Liver Cirrhosis ; complications ; Liver Neoplasms ; complications ; pathology ; surgery ; Margins of Excision ; Minimally Invasive Surgical Procedures ; methods ; Neoplasm Recurrence, Local ; epidemiology ; Tumor Burden
4.Predictors and outcomes of high-flow nasal cannula failure following extubation: A multicentre observational study.
Amit KANSAL ; Shekhar DHANVIJAY ; Andrew LI ; Jason PHUA ; Matthew Edward COVE ; Wei Jun Dan ONG ; Ser Hon PUAH ; Vicky NG ; Qiao Li TAN ; Julipie Sumampong MANALANSAN ; Michael Sharey Nocon ZAMORA ; Michael Camba VIDANES ; Juliet Tolentino SAHAGUN ; Juvel TACULOD ; Addy Yong Hui TAN ; Chee Kiang TAY ; Yew Woon CHIA ; Duu Wen SEWA ; Meiying CHEW ; Sennen J W LEW ; Shirley GOH ; Jonathan Jit Ern TAN ; Kollengode RAMANATHAN ; Amartya MUKHOPADHYAY ; Kay Choong SEE
Annals of the Academy of Medicine, Singapore 2021;50(6):467-473
INTRODUCTION:
Despite adhering to criteria for extubation, up to 20% of intensive care patients require re-intubation, even with use of post-extubation high-flow nasal cannula (HFNC). This study aims to identify independent predictors and outcomes of extubation failure in patients who failed post-extubation HFNC.
METHODS:
We conducted a multicentre observational study involving 9 adult intensive care units (ICUs) across 5 public hospitals in Singapore. We included patients extubated to HFNC following spontaneous breathing trials. We compared patients who were successfully weaned off HFNC with those who failed HFNC (defined as re-intubation ≤7 days following extubation). Generalised additive logistic regression analysis was used to identify independent risk factors for failed HFNC.
RESULTS:
Among 244 patients (mean age: 63.92±15.51 years, 65.2% male, median APACHE II score 23.55±7.35), 41 (16.8%) failed HFNC; hypoxia, hypercapnia and excessive secretions were primary reasons. Stroke was an independent predictor of HFNC failure (odds ratio 2.48, 95% confidence interval 1.83-3.37). Failed HFNC, as compared to successful HFNC, was associated with increased median ICU length of stay (14 versus 7 days,
CONCLUSION
Post-extubation HFNC failure, especially in patients with stroke as a comorbidity, remains a clinical challenge and predicts poorer clinical outcomes. Our observational study highlights the need for future prospective trials to better identify patients at high risk of post-extubation HFNC failure.
Adult
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Airway Extubation
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Cannula
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Critical Care
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Female
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Humans
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Intensive Care Units
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Male
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Middle Aged
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Respiratory Insufficiency/therapy*
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Singapore/epidemiology*
6.A practical and adaptive approach to lung cancer screening: a review of international evidence and position on CT lung cancer screening in the Singaporean population by the College of Radiologists Singapore.
Charlene Jin Yee LIEW ; Lester Chee Hao LEONG ; Lynette Li San TEO ; Ching Ching ONG ; Foong Koon CHEAH ; Wei Ping THAM ; Haja Mohamed Mohideen SALAHUDEEN ; Chau Hung LEE ; Gregory Jon Leng KAW ; Augustine Kim Huat TEE ; Ian Yu Yan TSOU ; Kiang Hiong TAY ; Raymond QUAH ; Bien Peng TAN ; Hong CHOU ; Daniel TAN ; Angeline Choo Choo POH ; Andrew Gee Seng TAN
Singapore medical journal 2019;60(11):554-559
Lung cancer is the leading cause of cancer-related death around the world, being the top cause of cancer-related deaths among men and the second most common cause of cancer-related deaths among women in Singapore. Currently, no screening programme for lung cancer exists in Singapore. Since there is mounting evidence indicating a different epidemiology of lung cancer in Asian countries, including Singapore, compared to the rest of the world, a unique and adaptive approach must be taken for a screening programme to be successful at reducing mortality while maintaining cost-effectiveness and a favourable risk-benefit ratio. This review article promotes the use of low-dose computed tomography of the chest and explores the radiological challenges and future directions.