1.Two Cases of Pseudohyperkalemia that Occurred after Emergency Splenectomy: What Goes Up, Will Come Down
Tan GH ; Nor Faezan AR ; Hairol AO ; Bong JJ
Journal of Surgical Academia 2011;1(1):32-34
Pseudohyperkalemia is a spuriously high serum potassium measurement in a patient with no clinical evidence of hyperkalemia. It has been reported to occur in patients with leukocytosis and thrombocytosis. Only a few cases of pseudohyperkalemia have been reported in patients after splenectomy. Two cases of pseudohyperkalemia occurring after emergency splenectomy for abdominal trauma are presented to highlight their clinical presentation and sequalae. Consecutive patients who underwent emergency splenectomy for trauma and subsequently developed pseudohyperkalemia were monitored in Universiti Kebangsaan Malaysia Medical Centre for their clinical sequalae. Both the patients developed leukocytosis, thrombocytosis and high serum potassium level within 2-weeks of their splenectomies. They did not demonstrate any symptoms and signs of hyperkalemia. Their conditions resolved spontaneously without any specific treatment. Pseudohyperkalemia should be suspected in a similar clinical scenario to avoid unnecessary treatment that could lead to severe hypokalemia.
2.Hematospermia: An Unusual Cause of Urology Emergency
Muhammad Hilmi H ; Goh EH ; Tan GH ; Rozman Z ; Nik Azuan NI Muhammad Hilmi H ; Goh EH ; Tan GH
Journal of Surgical Academia 2017;7(1):72-73
Abstract
Hematospermia is a distressing disorder in sexually active men resulting in great concern to the patient. We report an
unusual case of hematospermia with an atypical presentation, involving a 54-year-old man presented with acute
urinary retention after sexual intercourse. Although the causes are widely known, arteriovenous malformation as the
cause of this disorder has not much been reported in the literature. Transcatheter embolization of internal pudendal
artery is a promising option for hematospermia caused by arterial fistula or bleeding.
Hemospermia
3.The use of bone marrow stem cells for bone tissue engineering.
Ng MH ; Aminuddin BS ; Tan KK ; Tan GH ; Sabarul Afian M ; Ruszymah BH
The Medical Journal of Malaysia 2004;59 Suppl B():41-42
Bone marrow stem cells (BMSC), known for its multipotency to differentiate into various mesenchymal cells such as chodrocyte, osteoblasts, adipocytes, etc, have been actively applied in tissue engineering. BMSC have been successfully isolated from bone marrow aspirate and bone marrow scraping from patients of various ages (13-56 years) with as little as 2ml to 5ml aspirate. BMSC isolated from our laboratory showed the presence of a heterogenous population that showed varying prevalence of surface antigens and the presence of telomerase activity albeit weak. Upon osteogenic induction, alkaline phosphatase activity and mineralization activity were observed.
Bone Marrow Cells/cytology
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*Bone Marrow Transplantation
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Bone Regeneration/physiology
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*Bone Transplantation
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Cell Differentiation/physiology
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*Mesenchymal Stem Cell Transplantation
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Telomerase/metabolism
;
*Tissue Engineering
4.Strategy for generating tissue-engineered human bone construct.
Tan KK ; Aminuddin BS ; Tan GH ; Sabarul Afian M ; Ng MH ; Fauziah O ; Ruszymah BH
The Medical Journal of Malaysia 2004;59 Suppl B():43-44
The strategy used to generate tissue-engineered bone construct, in view of future clinical application is presented here. Osteoprogenitor cells from periosteum of consenting scoliosis patients were isolated. Growth factors viz TGF-B2, bFGF and IGF-1 were used in concert to increase cell proliferation during in vitro cell expansion. Porous tricalcium phosphate (TCP)-hydroxyapatite (HA) scaffold was used as the scaffold to form 3D bone construct. We found that the addition of growth factors, greatly increased cell growth by 2 to 7 fold. TCP/HA proved to be the ideal scaffold for cell attachment and proliferation. Hence, this model will be further carried out on animal trial.
Bone Regeneration/*physiology
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*Bone Transplantation
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Cell Division/physiology
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Collagen/metabolism
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*Mesenchymal Stem Cell Transplantation
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Organ Culture Techniques
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Periosteum/*cytology
;
Tissue Engineering/*methods
5.A Rare Case of Scrotal Basal Cell Carcinoma in the Presence of Metastatic Squamous Cell Carcinoma of the External Auditory Meatus and its Management Strategy
Tan Gh ; Elsa Jr ; Fam Xi ; Shukor Na ; Goh Eh ; Praveen S ; Ho Cck ; Zulkifli Mz
Medicine and Health 2017;12(1):113-117
Basal cell carcinoma (BCC) of the scrotum is uncommon and its pathogenesis is
not well understood. The clinical behaviour of scrotal BCC is thought to be more
aggressive and has a higher metastatic potential than BCC of other regions. The
mainstay of treatment for localized scrotal BCC is wide local excision, while
metastatic disease may need systemic chemotherapy for palliative control. A rare
clinical scenario of scrotal BCC presenting concurrently with another metastatic
cancer has never been reported. The present case illustrates the diagnostic challenge
and management dilemma due to simultaneous presentation of scrotal BCC and
metastatic squamous cell carcinoma (SCC). A 70-year-old man complained of a
non-healing scrotal ulcer while he was being investigated for metastatic squamous
cell carcinoma (SCC) of the external auditory meatus. The scrotal lesion was
initially thought to be metastatic SCC. It was later confirmed to be BCC with
biopsy and histopathological examination. He underwent surgical resection of the
scrotal BCC for local control followed by palliative chemotherapy with cisplatin
and radiotherapy for lymph node metastases. He remained well and did not have
any local recurrence following 6 months after palliative treatment. Surgery coupled
with palliative chemoradiation can offer good quality of life for patients with scrotal
BCC and concurrent metastatic SCC.
Carcinoma, Basal Cell
;
Carcinoma, Squamous Cell
6.Prevalence and Awareness of Lower Urinary Tract Symptoms among Males in the Outpatient Clinics of Universiti Kebangsaan Malaysia Medical Centre
Christopher Ho CK ; Praveen S ; Goh EH ; Tan GH ; Badrulhisham B ; Zulkifli MZ ; Khoo HW ; Su XV ; Ng JY ; Chong LL ; Lim DW ; Chen ES ; Teoh SY
Medicine and Health 2011;6(2):98-106
This study aims to determine the prevalence of lower urinary tract symptoms (LUTS) and level of awareness among male outpatients in Universiti Kebangsaan Malaysia Medical Centre (UKMMC). A questionnaire consisting of demographic data, questions related to knowledge, attitude and practice on BPH and the International Prostate Symptom Score (IPSS) was used for this study. Uroflowmetry and bladder scan were used to evaluate the function of the urinary tract and severity of BPH. Urine dipstick was done for glycosuria, proteinuria and haematuria. A total of 220 respondents were surveyed. The prevalence of moderately and severely symptomatic LUTS was 42.7%. The most commonly reported LUTS were nocturia (78.2%), frequency (58.2%) and incomplete emptying (44.6%). The prevalence of glycosuria, proteinuria and haematuria were 23.6%, 11.4% and 1.8% respectively. There was a significant association between increasing age with the severity of LUTS (p=0.005). Out of 102 respondents with voided urine volume greater than 150 mL, there was a significant decrease in maximum (Qmax) (p=0.039) and average (Qave) urine flow rates with every 10 years increase of age (p=0.001). The majority of respondents (59.5%) have heard of BPH before. Over 78.2% of the respondents would seek medical attention if they have LUTS with 15.9% saying they would seek traditional treatment. In conclusion, the prevalence of LUTS was high and the level of awareness was satisfactory.
7.Survey of Respiratory Virus in Patients Hospitalised for Acute Exacerbations of Heart Failure - A Prospective Observational Study.
Candice Yy CHAN ; Jenny Gh LOW ; Wyiki WYONE ; Lynette LE OON ; Ban Hock TAN
Annals of the Academy of Medicine, Singapore 2018;47(11):445-450
INTRODUCTION:
Respiratory virus (RV) infections have been implicated in acute exacerbation cardiopulmunary conditions. This study aimed to determine the prevalence of RV infections in patients admitted to the cardiology unit with acute decompensated heart failure (ADHF) in a tertiary hospitals in Singapore.
MATERIALS AND METHODS:
This was a single-centre, prospective observational study. A total of 194 adults (aged >21) admitted to the Singapore General Hospital with ADHF were recruited. A nasopharyngeal swab was taken for multiplex polymerase chain reaction (PCR) detection of influenza virus, rhinovirus, parainfluenza virus (HPIV), human coronavirus (HcoV), adenoviurs, human bocavirus (HboV), human metapneumovirus (hMPV), and respiratory syncytial virus (RSV).
RESULTS:
Twenty-five (13%) had RVs detected by RV multiplex PCR. There comprised 9 rhinoviruses (36%), 4 influenza A viruses (16%), 3 HPIV (12%), 3 HCoV (12%), 2 adenoviruses (8%), 1 human HBoV (4%), 1 hMPV (4%), and 1 RSV (4%). Symptoms-wise, cough was significantly more common in the PCR-positive group (48% vs 24%, = 0.02). There were no statistically significant differences in laboratory investigations (haemoglobin, leukocytes, platelets, creatine kinase, creatine kinase-muscle/brain, troponin T), and radiology findings between RV PCR-positive and -negative groups. The PCR-positive group did not have increased mortality or length of hospital stay.
CONCLUSION
This study identified a considerable burden of RVs in our ADHF cohort, and highlights the need for prevention of RVs in this group of patients. We also recognised the difficulty with clinical diagnosis of RVs in ADHF patients.
Adult
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Comorbidity
;
Diagnosis, Differential
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Female
;
Heart Failure
;
epidemiology
;
physiopathology
;
therapy
;
Humans
;
Length of Stay
;
statistics & numerical data
;
Male
;
Nasopharynx
;
virology
;
Outcome Assessment (Health Care)
;
Prospective Studies
;
Respiratory Tract Infections
;
epidemiology
;
therapy
;
virology
;
Singapore
;
epidemiology
;
Survival Analysis
;
Symptom Flare Up
;
Viruses
;
classification
;
isolation & purification
;
pathogenicity