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1.
ESMO Open ; 9(11): 103732, 2024 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-39413678

RESUMO

BACKGROUND: The incidence of breast cancer among young Asian women is increasing, yet they remain underrepresented in global data. We analyzed the epidemiology and outcomes of Asian patients with breast cancer <40 years old across different subtypes to identify their clinical unmet needs. PATIENTS AND METHODS: Female patients aged ≥20 years diagnosed with early breast cancer were analyzed from the prospective cohort of the Asian Breast Cancer Cooperative Group (ABCCG). For comparison, data from the Surveillance, Epidemiology, and End Results Program (SEER) cancer registry were used. Patients were categorized into three age groups: young (<40 years), alleged premenopausal mid-age (40-49 years), and alleged postmenopausal (aged ≥50 years). Multivariable Cox proportional hazards models for survival were adjusted for subtypes, histologic grade, T stage, nodal status, and study centers. RESULTS: A total of 45 021 patients with breast cancer from Asian study centers, 496 332 SEER-White patients, and 18 279 SEER-Asian patients were included in the analysis. The median age at diagnosis was younger in the Asian cohort (51 years) compared with SEER-Whites (62 years) and SEER-Asians (58 years; P < 0.0001). In the young-age group, hormone receptor-positive/human epidermal growth factor receptor 2 negative (HR+/HER2-) breast cancer was more prevalent among Asians and SEER-Asians compared with SEER-Whites (61.2% and 59.8% versus 54.7%). In the Asian population, young patients with HR+/HER2- breast cancer exhibited significantly inferior overall survival than the mid-age group (6-year overall survival 94.4% versus 96.6%; mid-age to young-age group hazard ratio 0.62; P < 0.001). Similarly, young patients in SEER-Whites showed an earlier decline in survival compared with the mid-age group (89.1% versus 94.0%; P < 0.001). CONCLUSION: ABCCG-Asian patients with breast cancer <40 years old with HR+/HER2- subtypes were more likely to have worse survival outcomes than their mid-age counterparts. Our study highlights the poorer prognosis of young patients and underscores the need for a tailored therapeutic approach, such as ovarian function suppression, particularly considering ethnic factors.

2.
Ann Oncol ; 35(4): 381-391, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38151184

RESUMO

BACKGROUND: Patients with advanced hepatocellular carcinoma (aHCC) have a poor prognosis and high mortality. Nivolumab monotherapy demonstrated clinical benefit with an acceptable safety profile in patients with aHCC in the CheckMate 040 study. Five-year follow-up of the sorafenib-naive and sorafenib-experienced groups of CheckMate 040 is presented here. PATIENTS AND METHODS: Patients received nivolumab monotherapy at dose levels of 0.1-10.0 mg/kg (dose-escalation phase) or 3 mg/kg (dose-expansion phase) every 2 weeks until disease progression or unacceptable toxicity. Primary endpoints were safety and tolerability (dose escalation), and objective response rate (ORR) by blinded independent central review (BICR) and by investigator as per RECIST version 1.1 (dose expansion). RESULTS: Eighty sorafenib-naive and 154 sorafenib-experienced patients were treated. Minimum follow-up in both groups was 60 months. ORR as per BICR was 20% [95% confidence interval (CI) 12% to 30%] and 14% (95% CI 9% to 21%) in the sorafenib-naive and sorafenib-experienced groups, respectively. Responses occurred regardless of HCC etiology or baseline tumor cell programmed death-ligand 1 (PD-L1) expression levels. Median overall survival (OS) was 26.6 months (95% CI 16.6-30.6 months) and 15.1 months (95% CI 13.0-18.2 months) in sorafenib-naive and sorafenib-experienced patients, respectively. The 3-year OS rates were 28% in the sorafenib-naive and 20% in the sorafenib-experienced groups; 5-year OS rates were 14% and 12%, respectively. No new safety signals were identified; grade 3/4 treatment-related adverse events were observed in 33% and 21% of patients in the sorafenib-naive and sorafenib-experienced groups, respectively. Biomarker analyses showed that baseline PD-L1 expression ≥1% was associated with higher ORR and longer OS compared with PD-L1 <1%. In the sorafenib-naive group, patients with OS ≥3 years exhibited higher baseline CD8 T-cell density compared with those with OS <1 year. CONCLUSION: With 5 years of follow-up, nivolumab monotherapy continued to provide durable clinical benefit with manageable safety in sorafenib-naive and sorafenib-experienced patients with aHCC.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Humanos , Nivolumabe/efeitos adversos , Carcinoma Hepatocelular/tratamento farmacológico , Sorafenibe/uso terapêutico , Antígeno B7-H1/metabolismo , Seguimentos , Neoplasias Hepáticas/tratamento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Ipilimumab/uso terapêutico
3.
Hong Kong Med J ; 29(1): 49-56, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36810240

RESUMO

INTRODUCTION: This post-hoc analysis retrospectively assessed data from two recent studies of antiemetic regimens for chemotherapy-induced nausea and vomiting (CINV). The primary objective was to compare olanzapine-based versus netupitant/palonosetron (NEPA)-based regimens in terms of controlling CINV during cycle 1 of doxorubicin/cyclophosphamide (AC) chemotherapy; secondary objectives were to assess quality of life (QOL) and emesis outcomes over four cycles of AC. METHODS: This study included 120 Chinese patients with early-stage breast cancer who were receiving AC; 60 patients received the olanzapine-based antiemetic regimen, whereas 60 patients received the NEPA-based antiemetic regimen. The olanzapine-based regimen comprised aprepitant, ondansetron, dexamethasone, and olanzapine; the NEPA-based regimen comprised NEPA and dexamethasone. Patient outcomes were compared in terms of emesis control and QOL. RESULTS: During cycle 1 of AC, the olanzapine group exhibited a higher rate of 'no use of rescue therapy' in the acute phase (olanzapine vs NEPA: 96.7% vs 85.0%, P=0.0225). No parameters differed between groups in the delayed phase. The olanzapine group had significantly higher rates of 'no use of rescue therapy' (91.7% vs 76.7%, P=0.0244) and 'no significant nausea' (91.7% vs 78.3%, P=0.0408) in the overall phase. There were no differences in QOL between groups. Multiple cycle assessment revealed that the NEPA group had higher rates of total control in the acute phase (cycles 2 and 4) and the overall phase (cycles 3 and 4). CONCLUSION: These results do not conclusively support the superiority of either regimen for patients with breast cancer who are receiving AC.


Assuntos
Antieméticos , Antineoplásicos , Neoplasias da Mama , Humanos , Feminino , Antieméticos/efeitos adversos , Palonossetrom/efeitos adversos , Olanzapina/efeitos adversos , Qualidade de Vida , Estudos Retrospectivos , Dexametasona , Vômito , Náusea , Neoplasias da Mama/tratamento farmacológico , Antineoplásicos/efeitos adversos
4.
Case Rep Otolaryngol ; 2021: 7368567, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34912584

RESUMO

Congenital vocal fold paralysis (VFP) is an important cause of respiratory compromise in infants. It can either be unilateral or bilateral, while imaging is routinely performed for bilateral VFP to evaluate for potential neurological causes, and such a practice may not be routine for unilateral VFP. While many of the unilateral VFP cases are idiopathic, the cause may occasionally be more sinister in nature, such as tumors. Therefore, unless an obvious cause of unilateral VFP is present (such as cardiac surgery or birth trauma), routine imaging of the brain, neck, and mediastinum should be performed for congenital unilateral VFP. We describe a rare case of a cervical neuroblastoma presenting with unilateral VFP that was detected only on imaging, thus highlighting its value and importance.

5.
Malays Orthop J ; 15(2): 115-121, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34429831

RESUMO

INTRODUCTION: Both short and long PFNA are employed to treat intertrochanteric fractures. Controversy exists in the choice between the two nails as each implant has specific characteristics and theoretical advantages. This retrospective study seeks to examine the operative complication rates and clinical outcomes of short versus long (Proximal Femoral Nail Antirotation) PFNA in the treatment of intertrochanteric fractures. MATERIAL AND METHODS: Between July 2011 and February 2015, 155 patients underwent PFNA insertion. The decision on whether to use a short or long PFNA nail, locked or unlocked, was determined by the attending operating surgeon. Visual Analogue Pain Score (VAS) Harris Hip Scores (HHS), Short-form 36 Health Questionnaire (SF-36) and Parker Mobility Scores (PMS) were collected at six weeks, six months and one year post-operatively. RESULTS: A total of 137 (88.4%) patients were successfully followed-up. Forty-two (30.7%) patients received a short PFNA. The patients were similar in baseline characteristics of age, gender, and comorbidities. Operative time was significantly longer in the short PFNA group (62 ±17 mins) versus the long PFNA group (56±17). While the patients in both groups achieved improvement in all outcome measures, there was no significant difference between the groups in terms of HHS (61.0 ±16.0 vs 63.0 ±16.8, p=0.443), PMS (2.3±1.5 vs 2.7±2.1, p=0.545) and VAS (1.7±2.9 vs 1.8 ±2.2 p=0.454). There were 3 (7.1%) and 7 (7.4%) complications in the short versus long PFNA group, respectively. CONCLUSION: Both short and long PFNA had similar clinical outcomes and complication rates in the treatment of intertrochanteric fractures in an Asian population.

6.
ESMO Open ; 6(3): 100111, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33892452

RESUMO

BACKGROUND: Multiple studies over the past 4 decades have shown the significant benefit of breast cancer screening (BCS) in reducing mortality rates from breast cancer (BC). However, significant debate exists about the role of BCS in this regard, with some studies also showing no benefit in terms of mortality along with issues such as overdiagnosis, health care utilisation costs, psychological distress or overtreatment. To date, no BCS study has focused on disability. Hence the aim of this study is to evaluate the relative contribution of BCS approaches to age-standardized mortality and disability-adjusted life years (DALYs) rates along with other related risk factors, from a country-level perspective. PATIENTS AND METHODS: This study created a country-dataset by merging information from the Global Burden of Disease study regarding female age-standardized BC mortality, DALYs rates and other risk factors with the BCS programme availability at the national or regional level (versus no or only pilot such programme), BCS type (mammography, digital screening, breast self-examination and clinical breast examination) and other BCS-related information among 130 countries. Mixed-effect multilevel regression models were run to examine the associations of interest. RESULTS: The most important factor predictive of lower mortality was the more advanced type of BCS programme availability [mammography: -4.16, 95% CI -6.76 to -1.55; digital mammography/ultrasound: -3.64, 95% CI -6.59 to -0.70] when compared with self- or clinical breast examinations. High levels of low-density lipoprotein cholesterol (LDL-c) and smoking were also related to higher mortality and DALYs from BC. In terms of BC DALYs, BCS had a 21.9 to 22.3-fold increase in the magnitude of effect compared with that in terms of mortality. Data on mortality and DALYs in relation to BCS programmes were also calculated for high-, middle- and low-income countries. CONCLUSIONS: These data further support the positive effects of BCS in relation to age-standardized BC mortality rates, and for the first time show the impact of BCS on DALYs too. Additional factors, such as diabetes, high levels of LDL-c or smoking seemed to be related to BC mortality and disability, and could be considered as additional components of possible interventions to be used alongside BCS to optimize the BCS benefit on patients.


Assuntos
Neoplasias da Mama , Pessoas com Deficiência , Neoplasias da Mama/diagnóstico , Detecção Precoce de Câncer , Feminino , Carga Global da Doença , Humanos , Anos de Vida Ajustados por Qualidade de Vida
7.
Hong Kong Med J ; 26(3): 216-226, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32482909

RESUMO

INTRODUCTION: Cancer survivorship is increasingly important with advances in cancer therapeutics. Minimisation of treatment-related morbidity is an area that requires attention. This situation is most pressing in premenopausal patients with breast cancer, in whom advances in hormonal and targeted therapies have improved mortality rates. However, treatment-related infertility is still poorly addressed, and in East Asia, there is limited discussion regarding management of treatment-related infertility. METHODS: A search of the literature was conducted using PubMed, Google Scholar, and Science Direct using the terms "breast cancer", "fertility preservation", "oocyte and embryonic cryopreservation", "GnRH-a co-administration", "ovarian tissue cryopreservation and transplantation", "Japan", "China", "Korea", and 'Singapore". Only studies published in English from 1980-2019 were included. The focus of the review was on identifying the current fertility preservation methods available to premenopausal women with breast cancer and the barriers that impede access. RESULTS: Fertility preservation options include GnRH-a co-administration to minimise treatment-associated infertility, oocyte and embryonic cryopreservation, and emerging treatments such as ovarian tissue cryopreservation and transplantation. In East Asia, the uptake of fertility preservation options has been limited despite it being a major patient concern. A lack of awareness of fertility preservation treatments hinders discussion between patients and clinicians about fertility preservation. CONCLUSION: Despite progress in fertility preservation technologies, their impact for patients will be minimal if there is a lack of awareness/use of the technology. This review aims to raise awareness of such technologies among clinicians, enabling discussion between patients and clinicians about fertility preservation options.


Assuntos
Neoplasias da Mama/terapia , Preservação da Fertilidade/métodos , Acessibilidade aos Serviços de Saúde , Infertilidade Feminina/prevenção & controle , Aceitação pelo Paciente de Cuidados de Saúde , Neoplasias da Mama/psicologia , Ásia Oriental , Feminino , Preservação da Fertilidade/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Infertilidade Feminina/etiologia , Infertilidade Feminina/psicologia , Pré-Menopausa
8.
J Hosp Infect ; 104(3): 305-308, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31877337

RESUMO

BACKGROUND: The role of laminar flow (LAF) is contradictory with several studies failing to replicate risk reduction. The 2016 World Health Organization guidelines identified this lack of good comparative studies. AIM: To analyse the use of LAF and the incidence of prosthetic joint infections (PJIs) in Asian patients undergoing total knee replacement (TKR). METHODS: Patients who underwent standard cemented posterior-stabilized TKR from 2004 to 2014 were reviewed from a prospectively collected single-surgeon database. Revision, traumatic and/or inflammatory cases were excluded. The type of airflow used was identified. The technique and surgical protocol for all procedures were similar. Tourniquets and inserted drains were routinely used. Patellar resurfacing was not performed. Patients were followed up at the outpatient clinics at regular intervals up to two years. At each visit, the patient was assessed for the occurrence of PJI. FINDINGS: Of the 1028 procedures, 453 (44.1%) were performed in an LAF operating theatre (OT) whereas 575 (55.9%) were performed in a non-LAF OT. There were no significant differences between the two groups in terms of age, gender, or side of procedure. The overall incidence of PJI was 0.6% (N = 6). Three (50%) occurred in an LAF OT whereas three (50%) occurred in a non-LAF OT. This was not statistically significant. CONCLUSION: Laminar flow systems are costly to procure and maintain. With modern aseptic techniques, patient optimization, and use of prophylactic antibiotics, laminar flow does not appear to further reduce risk of PJI in Asian patients after TKR.


Assuntos
Microbiologia do Ar , Artroplastia do Joelho/efeitos adversos , Controle de Infecções/métodos , Infecções Relacionadas à Prótese/epidemiologia , Infecção da Ferida Cirúrgica/prevenção & controle , Idoso , Movimentos do Ar , Ambiente Controlado , Feminino , Humanos , Masculino , Ventilação/instrumentação
9.
Osteoporos Int ; 30(5): 929-938, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30643925

RESUMO

INTRODUCTION: To identify, organize, and assess the evidence level of pre-discharge prognostic factors of physical function beyond discharge after hip fracture surgery. METHODS: We performed a systematic search of four databases (PubMed, Embase, CINAHL, PsycINFO) for longitudinal studies of prognostic factors of physical function at ≥ 1 month among older adults ≥ 50 years old with surgically treated hip fracture, complemented with hand-searching. Two reviewers independently screened papers for inclusion and assessed the quality of all the included papers using the Quality in Prognosis Studies (QUIPS) tool. We assigned the evidence level for each prognostic factor based on consistency in findings and study quality. RESULTS: From 98 papers that met our inclusion criteria, we identified 107 pre-discharge prognostic factors and organized them into the following seven categories: demographic, physical, cognitive, psychosocial, socioeconomic, injury-related, and process of care. Potentially modifiable factors with strong or moderate evidence of an association included total length of stay, physical function at discharge, and grip strength. Factors with strong or moderate evidence of no association included gender, fracture type, and time to surgery. Factors with limited, conflicting, or inconclusive evidence included body-mass index, psychological resilience, depression, and anxiety. CONCLUSIONS: Our findings highlight potentially modifiable prognostic factors that could be targeted and non-modifiable prognostic factors that could be used to identify patients who may benefit from more intensive intervention or to advise patients on their expectations on recovery. Examining the efficacies of existing interventions targeting these prognostic factors would inform future studies and whether any of such interventions could be incorporated into clinical practice.


Assuntos
Fixação de Fratura/reabilitação , Fraturas do Quadril/reabilitação , Fraturas do Quadril/cirurgia , Idoso , Medicina Baseada em Evidências/métodos , Humanos , Tempo de Internação/estatística & dados numéricos , Alta do Paciente , Prognóstico , Recuperação de Função Fisiológica
10.
Osteoarthritis Cartilage ; 27(1): 49-58, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30243947

RESUMO

OBJECTIVES: Pain sensitization could be a risk factor for poor outcomes after knee replacement surgery (KR) for knee osteoarthritis (KOA). We aimed to evaluate the association between pre-operative central and peripheral pain sensitization measured using a digital pressure algometer and KR outcomes. METHODS: Consecutive patients with severe KOA listed for KR were recruited. Sociodemographic and symptoms data were collected prior to surgery. Pre-operative pressure pain thresholds (PPTs) were measured using a digital pressure algometer at the index knee and forearm. Patient satisfaction at 6 and 12 months after KR was assessed using a 4-point Likert scale, and dichotomized to satisfied and dissatisfied to KR. Western Ontario and McMaster Universities Index (WOMAC) Pain and function was assessed. The associations between pre-operative PPTs with KR outcomes at 6 and 12 months were evaluated. RESULTS: Of the 243 patients recruited, response rate at 6 and 12 months were 95.5% and 96.7%. The dissatisfaction rates were 8.2% and 5.1% at 6 and 12 months. There was no statistically significant association between pre-operative index knee or forearm PPTs and patient satisfaction. PPTs measured at the knee, but not the forearm, were weakly associated with change in the WOMAC pain score at 12 months, after adjustment for confounding factors. CONCLUSION: Pre-operative central sensitization, measured by handheld digital algometry, was not statistically significantly associated with satisfaction or change in pain after KR. Pre-operative peripheral sensitization was associated with change in pain symptoms after KR; however, this association was weak and unlikely to be a meaningful predictor of KR outcome in clinical practice.


Assuntos
Artroplastia do Joelho , Osteoartrite do Joelho/cirurgia , Limiar da Dor/fisiologia , Dor/etiologia , Idoso , Sensibilização do Sistema Nervoso Central/fisiologia , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Osteoartrite do Joelho/complicações , Medição da Dor/métodos , Satisfação do Paciente , Período Pré-Operatório , Índice de Gravidade de Doença , Resultado do Tratamento
11.
Case Rep Otolaryngol ; 2018: 1403912, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29850332

RESUMO

Teratomas are the most common germ cell tumors of childhood. Head and neck teratomas, however, account for less than five percent of all teratomas. Considered rare at an incidence of 1 in 20,000 to 40,000 live births, they may occur in the cervical region, nasopharynx, brain, orbit, or oropharynx. Teratoma presenting as an isolated intranasal mass is extremely rare. In this report, we describe a case of a mature teratoma arising from the roof of the nasal cavity presenting as an isolated intranasal mass, the first of its kind from our literature review. The tumor was resected endoscopically with no recurrence detected.

12.
Am J Otolaryngol ; 39(2): 247-252, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29336902

RESUMO

INTRODUCTION: Jugular bulb and sigmoid sinus anomalies are well-known causes of vascular pulsatile tinnitus. Common anomalies reported in the literature include high-riding and/or dehiscent jugular bulb, and sigmoid sinus dehiscence. However, cases of pulsatile tinnitus due to diverticulosis of the jugular bulb or sigmoid sinus are less commonly encountered, with the best management option yet to be established. In particular, reports on surgical management of pulsatile tinnitus caused by jugular bulb diverticulum have been lacking in the literature. OBJECTIVES: To report two cases of pulsatile tinnitus with jugular bulb and/or sigmoid sinus diverticulum, and their management strategies and outcomes. In this series, we describe the first reported successful case of pulsatile tinnitus due to jugular bulb diverticulum that was surgically-treated. SUBJECTS AND METHODS: Two patients diagnosed with either jugular bulb and/or sigmoid sinus diverticulum, who had presented to the Otolaryngology clinic with pulsatile tinnitus between 2016 and 2017, were studied. Demographic and clinical data were obtained, including their management details and clinical outcomes. RESULTS: Two cases (one with jugular bulb diverticulum and one with both sigmoid sinus and jugular bulb diverticula) underwent surgical intervention, and both had immediate resolution of pulsatile tinnitus post-operatively. This was sustained at subsequent follow-up visits at the outpatient clinic, and there were no major complications encountered for both cases intra- and post-operatively. CONCLUSION: Transmastoid reconstruction/resurfacing of jugular bulb and sigmoid sinus diverticulum with/without obliteration of the diverticulum is a safe and effective approach in the management of bothersome pulsatile tinnitus arising from these causes.


Assuntos
Malformações Vasculares do Sistema Nervoso Central/complicações , Cavidades Cranianas/anormalidades , Divertículo/complicações , Veias Jugulares/anormalidades , Procedimentos Cirúrgicos Otorrinolaringológicos/métodos , Zumbido/etiologia , Adulto , Malformações Vasculares do Sistema Nervoso Central/diagnóstico , Divertículo/diagnóstico , Feminino , Humanos , Veias Jugulares/diagnóstico por imagem , Pessoa de Meia-Idade , Terapia Trombolítica , Zumbido/diagnóstico , Zumbido/cirurgia , Tomografia Computadorizada por Raios X
13.
Hong Kong Med J ; 24(1): 56-62, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29326401

RESUMO

INTRODUCTION: The management of human epidermal growth factor receptor 2 (HER2)-positive breast cancer has changed dramatically with the introduction and widespread use of HER2-targeted therapies. There is, however, relatively limited real-world information about the effectiveness and safety of trastuzumab emtansine (T-DM1) in Hong Kong Chinese patients. We assessed the efficacy and toxicity profiles among local patients with HER2-positive advanced breast cancer who had received T-DM1 therapy in the second-line setting and beyond. METHODS: This retrospective study involved five local centres that provide service for over 80% of the breast cancer population in Hong Kong. The study period was from December 2013 to December 2015. Patients were included if they had recurrent or metastatic histologically confirmed HER2+ breast cancer who had progressed after at least one line of anti-HER2 therapy including trastuzumab. Patients were excluded if they received T-DM1 as first-line treatment for recurrent or metastatic HER2+ breast cancer. Patient charts including biochemical and haematological profiles were reviewed for background information, T-DM1 response, and toxicity data. Adverse events were documented during chemotherapy and 28 days after the last dose of medication. RESULTS: Among 37 patients being included in this study, 28 (75.7%) had two or more lines of anti-HER2 agents and 26 (70.3%) had received two or more lines of palliative chemotherapy. Response assessment revealed that three (8.1%) patients had a complete response, eight (21.6%) a partial response, 11 (29.7%) a stable disease, and 12 (32.4%) a progressive disease; three patients could not be assessed. The median duration of response was 17.3 (95% confidence interval, 8.4-24.8) months. The clinical benefit rate (complete response + partial response + stable disease, ≥12 weeks) was 37.8% (95% confidence interval, 22.2%-53.5%). The median progression-free survival was 6.0 (95% confidence interval, 3.3- 9.8) months and the median overall survival had not been reached by the data cut-off date. Grade 3 or 4 toxicities included thrombocytopaenia (13.5%), raised alanine transaminase (8.1%), anaemia (5.4%), and hypokalaemia (2.7%). No patient died as a result of toxicities. CONCLUSIONS: In patients with HER2-positive advanced breast cancer who have been heavily pretreated with anti-HER2 agents and cytotoxic chemotherapy, T-DM1 is well tolerated and provided a meaningful progression-free survival of 6 months and an overall survival that has not been reached. Further studies to identify appropriate patient subgroups are warranted.


Assuntos
Antineoplásicos Imunológicos/administração & dosagem , Antineoplásicos Imunológicos/efeitos adversos , Neoplasias da Mama/tratamento farmacológico , Maitansina/análogos & derivados , Trastuzumab/administração & dosagem , Trastuzumab/efeitos adversos , Ado-Trastuzumab Emtansina , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Neoplasias da Mama/genética , Neoplasias da Mama/mortalidade , Feminino , Hong Kong/epidemiologia , Humanos , Maitansina/administração & dosagem , Maitansina/efeitos adversos , Pessoa de Meia-Idade , Receptor ErbB-2/genética , Estudos Retrospectivos , Análise de Sobrevida
14.
J Laryngol Otol ; 131(11): 982-986, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28870268

RESUMO

OBJECTIVES: To characterise multi-level obstruction in terms of prevalence, obstructive sleep apnoea severity and predictive factors, and to collect epidemiological data on upper airway morphology in obstructive sleep apnoea patients. METHODS: Retrospective review of 250 obstructive sleep apnoea patients. RESULTS: On clinical examination, 171 patients (68.4 per cent) had multi-level obstruction, 49 (19.6 per cent) had single-level obstruction and 30 (12 per cent) showed no obstruction. Within each category of obstructive sleep apnoea severity, multi-level obstruction was more prevalent. Multi-level obstruction was associated with severe obstructive sleep apnoea (more than 30 events per hour) (p = 0.001). Obstructive sleep apnoea severity increased with the number of obstruction sites (correlation coefficient = 0.303, p < 0.001). Multi-level obstruction was more likely in younger (p = 0.042), male (p = 0.045) patients, with high body mass index (more than 30 kg/m2) (p < 0.001). Palatal (p = 0.004), tongue (p = 0.026) and lateral pharyngeal wall obstructions (p = 0.006) were associated with severe obstructive sleep apnoea. CONCLUSION: Multi-level obstruction is more prevalent in obstructive sleep apnoea and is associated with increased severity. Obstruction at certain anatomical levels contributes more towards obstructive sleep apnoea severity.


Assuntos
Apneia Obstrutiva do Sono/etiologia , Adulto , Fatores Etários , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Obesidade/complicações , Prevalência , Sistema Respiratório/patologia , Estudos Retrospectivos , Fatores de Risco , Índice de Gravidade de Doença , Fatores Sexuais , Apneia Obstrutiva do Sono/epidemiologia , Apneia Obstrutiva do Sono/patologia , Adulto Jovem
15.
Hong Kong Med J ; 23(3): 315-6, 2017 06.
Artigo em Inglês | MEDLINE | ID: mdl-28572525
16.
Chem Commun (Camb) ; 53(17): 2559-2562, 2017 Feb 23.
Artigo em Inglês | MEDLINE | ID: mdl-28184383

RESUMO

Molecular determinants of FlA1 fluorinase specificity were probed using 5'-chloro-5'-deoxyadenosine (5'-ClDA) analogs as substrates and FlA1 active site mutants. Modifications at F213 or A279 residues are beneficial towards these modified substrates, including 5'-chloro-5'-deoxy-2-ethynyladenosine, ClDEA (>10-fold activity improvement), and conferred novel activity towards substrates not readily accepted by wild-type FlA1.


Assuntos
Proteínas de Bactérias/genética , Proteínas de Bactérias/metabolismo , Sondas Moleculares/metabolismo , Oxirredutases/genética , Oxirredutases/metabolismo , Proteínas de Bactérias/química , Cladribina/química , Cladribina/metabolismo , Modelos Moleculares , Sondas Moleculares/química , Mutação , Conformação de Ácido Nucleico , Oxirredutases/química , Streptomyces/enzimologia , Especificidade por Substrato
17.
J Hosp Infect ; 95(4): 387-393, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28131640

RESUMO

OBJECTIVE: Healthcare-associated Clostridium difficile infection (HCA-CDI) remains a major cause of morbidity and mortality in industrialized countries. However, few data exist on the burden of HCA-CDI in multi-site non-metropolitan settings. This study examined the introduction of an antimicrobial stewardship programme (ASP) in relation to HCA-CDI rates, and the effect of HCA-CDI on length of stay (LOS) and hospital costs. METHODS: A comparative before-and-after intervention study of patients aged ≥16 years with HCA-CDI from December 2010 to April 2016 across the nine hospitals of a non-metropolitan health district in New South Wales, Australia was undertaken. The intervention comprised a multi-site ASP supported by a clinical decision support system, with subsequent introduction of email feedback of HCA-CDI cases to admitting medical officers. MAIN OUTCOME MEASURES: HCA-CDI rates, comparative LOS and hospital costs, prior use of antimicrobials and proton pump inhibitors, and appropriateness of CDI treatment. RESULTS: HCA-CDI rates rose from 3.07 to 4.60 cases per 10,000 occupied bed-days pre-intervention, and remained stable at 4 cases per 10,000 occupied bed-days post-intervention (P=0.24). Median LOS (17 vs six days; P<0.01) and hospital costs (AU$19,222 vs $7861; P<0.01) were significantly greater for HCA-CDI cases (N=91) than for matched controls (N=172). Half of the patients with severe HCA-CDI (4/8) did not receive initial appropriate treatment (oral vancomycin). CONCLUSIONS: HCA-CDI placed a significant burden on the regional and rural health service through increased LOS and hospital costs. Interventions targeting HCA-CDI could be employed to consolidate the effects of ASPs.


Assuntos
Antibacterianos/uso terapêutico , Clostridioides difficile/isolamento & purificação , Infecções por Clostridium/epidemiologia , Colite/epidemiologia , Infecção Hospitalar/epidemiologia , Uso de Medicamentos/normas , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Infecções por Clostridium/microbiologia , Infecções por Clostridium/prevenção & controle , Colite/microbiologia , Colite/prevenção & controle , Infecção Hospitalar/microbiologia , Infecção Hospitalar/prevenção & controle , Feminino , Custos de Cuidados de Saúde , Hospitais , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , New South Wales/epidemiologia , Adulto Jovem
18.
Hong Kong Med J ; 23(1): 54-62, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27966431

RESUMO

INTRODUCTION: The use of adjuvant chemotherapy with S-1 (tegafur, gimeracil, and oteracil potassium) has been shown to improve the outcome of patients with gastric cancer. There are limited data on the tolerability of S-1 in Chinese patients. In this multicentre retrospective study, we assessed the toxicity profile in local patients. METHODS: Patients with stage II-IIIC gastric adenocarcinoma who had undergone curative resection and who had received S-1 adjuvant chemotherapy were included in the study. Patient demographics, tumour characteristics, chemotherapy records, as well as biochemical, haematological, and other toxicity profiles were extracted from medical charts. Potential factors associated with grade 2-4 toxicities were identified. RESULTS: Adjuvant S-1 was administered to 30 patients. Overall, 19 (63%) patients completed eight cycles. The most common grade 3-4 adverse events included neutropaenia (10%), anaemia (6.7%), septic episode (16.7%), diarrhoea (6.7%), hyperbilirubinaemia (6.7%), and syncope (6.7%). Dose reductions were made in 22 (73.3%) patients and 12 (40.0%) patients had dose delays. Univariate analyses showed that patients who underwent total gastrectomy were more likely to experience adverse haematological events (P=0.034). Patients with nodal involvement were more likely to report adverse non-haematological events (P=0.031). Patients with a history of regular alcohol intake were more likely to have earlier treatment withdrawal (P=0.044). Lower body weight (P=0.007) and lower body surface area (P=0.017) were associated with dose interruptions. CONCLUSIONS: The tolerability of adjuvant S-1 in our patient population was similar to that in other Asian patient populations. The awareness of S-1-related toxicities and increasing knowledge of potential associated factors may enable optimisation of S-1 therapy.


Assuntos
Adenocarcinoma/terapia , Antimetabólitos Antineoplásicos/administração & dosagem , Quimioterapia Adjuvante , Ácido Oxônico/administração & dosagem , Neoplasias Gástricas/terapia , Tegafur/administração & dosagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Anemia/etiologia , Antimetabólitos Antineoplásicos/efeitos adversos , Quimioterapia Adjuvante/efeitos adversos , Combinação de Medicamentos , Feminino , Seguimentos , Gastrectomia , Hong Kong , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/tratamento farmacológico , Neutropenia/etiologia , Ácido Oxônico/efeitos adversos , Estudos Retrospectivos , Fatores de Risco , Análise de Sobrevida , Tegafur/efeitos adversos , Resultado do Tratamento
19.
Psychooncology ; 26(2): 255-261, 2017 02.
Artigo em Inglês | MEDLINE | ID: mdl-27061966

RESUMO

BACKGROUND: Most women with advanced breast cancer (ABC) show little distress, but about one in ten show persistent distress over time. It remains unclear if meanings ascribed by patients to ABC differentiate these distress trajectories. STUDY AIMS: This qualitative study (a) compared illness meanings of ABC between women with persistent psychological distress and those with low/transient distress, and (b) examined how illness meanings might influence coping strategies. METHODS: The sample was drawn from a prior quantitative study exploring psychological distress trajectories following ABC diagnosis. Overall, 42 Cantonese- or Mandarin-speaking Chinese women diagnosed with locally advanced or metastatic ABC were recruited based on their distress trajectory status (low-stable, transient, or persistent distress). Interviews were recorded, transcribed, and analyzed following grounded theory approach using simultaneous analysis. RESULTS: Women with persistent distress viewed their diagnosis as another blow in life, the illness was global, permeating every aspect of their life. Maladaptive rumination and thought suppression were common responses to illness demands. These women had poor social support. A sense of demoralization stood out in their narratives. In contrast, women with transient/low-stable distress encapsulated the illness, with minimum impacts of their life. They did not evidence dysfunctional repetitive thoughts. Living in a supportive environment, they were able to accept and/or live in the present-moment. CONCLUSIONS: Rumination, thought suppression, social constraints, and pre-existing exposure to life stress may be potential risks for chronic distress in response to advanced breast cancer. Persistent and transient distress responses to cancer may have different underpinnings. Copyright © 2016 John Wiley & Sons, Ltd.


Assuntos
Neoplasias da Mama/psicologia , Qualidade de Vida/psicologia , Resiliência Psicológica , Estresse Psicológico/psicologia , Adaptação Psicológica , Adulto , Povo Asiático/psicologia , Sobreviventes de Câncer/psicologia , China , Feminino , Humanos , Pessoa de Meia-Idade , Pesquisa Qualitativa , Apoio Social
20.
J Orthop Surg (Hong Kong) ; 24(2): 153-7, 2016 08.
Artigo em Inglês | MEDLINE | ID: mdl-27574253

RESUMO

PURPOSE: To identify predictors for rehabilitation outcome in Asian geriatric hip fracture patients. METHODS: Records of 153 consecutive Asian patients aged 61 to 99 years who underwent surgery for hip fracture and were followed up for at least one year were reviewed. They were stratified into 4 agegroups: 60-69 years (n=27), 70-79 years (n=70), 80-89 years (n=50), and ≥90 years (n=6). Any comorbidity, regardless of severity, was recorded. Pre-injury and postoperative functional status was evaluated using the 36-item Short Form Health Survey. Relative functional gain (RFG) is equal to absolute functional gain (physical component summary [PCS] score at one year minus PCS score at 6 weeks) divided by the maximum potential gain (maximum PCS score minus PCS score at 6 weeks). RFG of <0.5 and ≥0.5 is defined as poor and good rehabilitation outcome, respectively. RESULTS: In univariate analysis, age 80-89 years (p=0.026), arthritis (p=0.082), and hypercholesterolaemia (p=0.014) were predictors for RFG. In multivariate analysis, age 80-89 years (p=0.016) remained a predictor for poor RFG, and hypercholesterolaemia remained a predictor for good RFG. CONCLUSION: Poor rehabilitation outcome was associated with patient age of 80-89 years; an orthogeriatric approach may be beneficial in optimising rehabilitation outcome in elderly hip fracture patients.


Assuntos
Povo Asiático , Fraturas do Quadril/reabilitação , Fraturas do Quadril/cirurgia , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Feminino , Fraturas do Quadril/etnologia , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Recuperação de Função Fisiológica , Singapura , Resultado do Tratamento
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