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Surgical management of early invasive cancer of the cervix associated with pregnancy

Sivanesaratnam V, Jayalakshmi P, Loo C

Gynecol Oncol, 1993 Jan;48(1):68-75.
PMID: 8423024

The simultaneous occurrence of carcinoma of the cervix in pregnancy is uncommon. In a prospective study of 397 patients undergoing type III radical hysterectomy for early invasive cancer of the cervix, 18 were pregnant at the time of surgery; 4 of these were operated after delivery elsewhere. Two others had a type I extrafascial hysterectomy. The incidence was 1 in 4077 deliveries. The clinical and histological characteristics of these patients are presented. Routine speculum examination and cervical cytology in all pregnant patients early in pregnancy are vital for early diagnosis. Bleeding in pregnancy should not automatically be assumed to be caused by pregnancy-related conditions. The strategies in surgical management are discussed. Radical hysterectomy in pregnancy is safe. No major complications were encountered; the mean blood loss was 1.4 liters. The incidence of pelvic node metastases was similar to that seen in nonpregnant patients. The overall 5-year survival rate was 77.7%. Of the 4 patients who died, 3 presented in the puerperium; all succumbed within 27 months. Poor histological prognostic features contributed to the significantly poorer survival in the puerperal patients (P = 0.0445). The 5-year survival in those presenting during the antepartum period (92.8%) was, however, similar to that in the nonpregnant patients. Metastases to the placenta or fetus were not encountered.
Fulltext Acute renal failure in a teaching hospital

Loo CS, Zainal D

Singapore Med J, 1995 Jun;36(3):278-81.
PMID: 8553092

This was a retrospective study of the clinical course of 164 adult inpatients with acute renal failure (ARF) at the Hospital of the University of Science Malaysia admitted from June 1986 to May 1990. The mean age was 49.8 +/- 17.2 years. 33.5%, 54.9% and 11.6% were surgical, medical and obstetrical patients respectively. Obstructive uropathy, poor cardiac output or decrease in intravascular volume and infection accounted for more than 67% of the cases. Acute renal failure was present at admission in 113 (69%) patients. The majority of the patients (80%) had nonoliguric acute renal failure with daily output of urine of more than 400 ml. Compared with nonoliguric patients, oliguric patients had higher mortality (56.3% vs 18.9%, p < 0.01), and needed dialysis more frequently (43.8% vs 12.9%, p < 0.01). Early recognition of acute renal failure, improvement in early treatment of renal stones and discerning use of nephrotoxic drugs could result in decrease in incidence and severity of renal failure.
Fulltext The pattern of acute renal failure in Kelantan

Zainal D, Loo CS

Singapore Med J, 1996 Feb;37(1):44-7.
PMID: 8783912

Acute renal failure (ARF) has undergone many changes with advances both in diagnosis and therapy. A retrospective study covering three and a half years from June 1986 to December 1989 of adults admitted to Hospital of the University of Science Malaysia examined the various aspects of presentation of the syndrome, management and areas where improvement can be made. A total of 164 patients were included in the study. 61.6% were male and 38.4% were female. The mean age was 49.8 +/- 17.2 years with 70% of patients being more than 40 years old. The aetiologies of acute renal failure were analysed and discussed. The majority of the patients (80%) had non-oliguric acute renal failure. Oliguric acute renal failure patients have higher mortality and more frequently need dialysis. Early recognition of acute renal failure and discerning use of nephrotoxic drugs could result in decrease in incidence and severity of renal failure.
Fulltext The status of intermittent peritoneal dialysis in Hospital University Science Malaysia

Zainal D, Loo CS

Singapore Med J, 1995 Aug;36(4):379-82.
PMID: 8919150

Acute (stab) peritoneal dialysis is commonly practised in Malaysia. This study is designed to improve the management of peritoneal dialysis (PD) in Hospital University Science Malaysia (HUSM). Consecutive peritoneal dialysis (PD) on adult inpatients from May 1992 to September 1992 were reviewed prospectively. There were 40 episodes of peritoneal dialysis on 27 patients during this period given at the rate of 2 PD per week. The mean age of patients were 53 +/- 15 years. Uraemia was the main indication for dialysis, while hyperkalaemia and pulmonary oedema were indications for urgent dialysis. Complications occurred in 14 episodes of dialysis (35%). The most common complication was bleeding in the peritoneal cavity while peritonitis was the second most common complication. Dialysis episodes complicated by peritonitis were done by less experienced performers compared to uncomplicated dialysis episodes. Overall mean time spent on each dialysis and time per cycle were longer than recommended (59 +/- 24 hours and 77 +/- 14 minutes). In conclusion, acute PD performed on patients admitted in Hospital University Malaysia was safe and had complication rates comparable to other established centres. However, improvements are possible through closer supervision of new doctors and tighter nursing precautions.
Fulltext Metastatic nasal chondrosarcoma

Sathappan S, Razak HA, Loo CP

Med J Malaysia, 2007 Oct;62(4):347-8.
PMID: 18551946 MyJurnal

Chondrosarcomas are uncommon tumors which originates in the head and neck and accounts for approximately 10 to 15% of all cases. Most chondrosarcomas exhibit an indolent growth pattern. Nasoseptal tumors may mimic common sinonasal conditions, making early diagnosis difficult. We report a case of nasoseptal metastatic chondrosarcoma which was atypical, characterized by an aggressive growth pattern and widely disseminated.
Confluent and reticulated papillomatosis: Case series of 3 patients from Kedah, Malaysia and literature review

Lee SW, Loo CH, Tan WC

Med J Malaysia, 2018 10;73(5):338-339.
PMID: 30350820 MyJurnal

Confluent and reticulated papillomatosis (CRP) was first described in 1927 by Gougerot and further characterised by Carteud.1 It is relatively rare, and the exact pathophysiology was not well known. Over the years, multiple treatment modalities were proposed. We report our experience with three cases of CRP which showed complete clearance with tetracycline group of antibiotics.
Fulltext The value of routine chest radiographs in acute asthma admissions

Ismail Y, Loo CS, Zahary MK

Singapore Med J, 1994 Apr;35(2):171-2.
PMID: 7939814

We reviewed 116 chest radiographs done in 70 adult asthmatic patients who were admitted to the Hospital Universiti Sains Malaysia from January to December 1989. The chest radiographs were abnormal in 23% of cases. Twelve percent showed hyperinflation and 7% had pneumonia. Eight patients diagnosed clinically to have pneumonia had normal chest radiographs. Seven patients had radiographic findings of conditions which were unsuspected clinically. These included two cases of pneumonia, one case each of fibrosing alveolitis, pneumothorax, pneumomediastinum, mitral stenosis with left ventricular failure and right pleural effusion. In conclusion, we found that significant chest radiograph abnormalities in adult patients admitted for asthma were uncommon although chest radiographs were helpful in detecting complications or coincidental conditions. Chest radiograph is therefore an important investigation in adult asthmatic patients who are admitted. However, considering the cost and the risk of radiation, it should be done only in selective cases rather than as a routine procedure.
Study site: Hospital Universiti Sains Malaysia, Kelantan, Malaysia
Fulltext Extragonadal germ cell tumor presenting in a woman with systemic lupus erythematosus: a case report

Shahrir M, Halim A, Zainudin S, Mohamad R, Yuen LC, Saidin R, et al.

J Med Case Rep, 2010;4:97.
PMID: 20338049 DOI: 10.1186/1752-1947-4-97

Germ cell tumor of the pituitary gland is a very rare occurrence.
Fulltext Short QTc in epilepsy patients without cardiac symptoms

Teh HS, Tan HJ, Loo CY, Raymond AA

Med J Malaysia, 2007 Jun;62(2):104-8.
PMID: 18705439

Epilepsy patients have a higher mortality rate than the general population. Sudden unexpected death in epilepsy (SUDEP) is a major cause of mortality for these patients. The possibility of cardiac involvement in the pathogenesis of SUDEP has been suggested by many previous studies. This study compared the QT interval in epilepsy patients and normal controls, and identified the factors that affected the QT interval. Standard 12-lead ECGs were recorded from 70 consecutive epilepsy patients from the neurology clinic of HUKM and 70 age, race and gender matched controls. The mean QT interval corrected for heart rate (QTc) was calculated and compared. The mean QTc among the epilepsy patients was 0.401 +/- 0.027s. It was significantly shorter than the QTc (0.420 +/- 0.027s) in the control group (p<0.0005). Thirty five epilepsy patients (50%) and 17 matched controls (24.3%) had a mean QTc shorter than 0.40s (p=0.001). Among the epilepsy patients, the mean QTc did not significantly differ between patients in the duration (F=0.836, p=0.438) of the epilepsy, frequency (F=0.273, p=0.845) and types of seizures (p=0.633). There was no significant difference in the mean QTc between the epilepsy patients on different number of antiepileptic agents (F=0.444, p=0.643). Patients with cryptogenic epilepsy had a mean QTc of 0.392 +/- 0.029s, which was significantly shorter than patients with symptomatic epilepsy (QTc = 0.410 +/- 0.027s, p = 0.015). The mean QTc of the same subjects showed no significant interobserver difference (p=0.661). This study, for the first time, demonstrates that epilepsy patients have a significantly shorter QTc than controls, particularly in the subgroup of patients with cryptogenic epilepsy.
Study site: Neurology clinic, Pusat Perubatan Universiti Kebangsaan Malaysia (PPUKM), Kuala Lumpur, Malaysia
Fulltext Clinical profile, morbidity and outcome of adult patients with psoriasis at a district hospital in Northern Malaysia

Loo CH, Chan YC, Lee KQ, Tharmalingam P, Tan WC

Med J Malaysia, 2015 Jun;70(3):177-81.
PMID: 26248781 MyJurnal

INTRODUCTION: Psoriasis is a common, chronic, relapsing, immune-mediated inflammatory disease. Our objective is to review the clinical profile, co-morbidities, and outcome of patients with psoriasis.
METHODS: This is a cross-sectional study of outpatient psoriasis patients attending the dermatology clinic, Hospital Sultan Abdul Halim (HSAH) between January 2012 and June 2014. Data collection was based on Malaysian Psoriasis Registry.
RESULTS: Among 296 patients with psoriasis, Malays were the most common 175 (59.1%), followed by Indians 82 (27.7%), Chinese 37 (12.5%) and others 2 (0.6%). Male to female ratio was 1.2:1. More than half (54.7%) of the patients had early onset disease (age 40 or less). Only 26 patients (8.8%) have positive family history. The most common clinical presentation was chronic plaque psoriasis (89.9%), followed by erythrodermic psoriasis (4.7%), guttate psoriasis (3.0%) and pustular psoriasis (1.7%). Twenty eight percent had nail involvement while arthropathy was seen only in 14.7%. Common triggers were sunlight (46.0%), stress (31.1%), trauma (5.4%), food (4.0%), pregnancy (4.0%), and upper respiratory tract infections (2.7%). Co-morbidities observed include ischaemic heart disease (7.1%), hypertension (26.7%), dyslipidemia (17.6%), and diabetes mellitus (22.0%). All patients were on topical medications. About 6.8% of the patients were treated with phototherapy. One third of patients (35.5%) were given systemic therapy. Out of these, 84 patients (80.0%) were on methotrexate while only 16 (15.2%) on acitretin. None was on cyclosporine or biologic. In term of disease severity, 41.7% of patients had BSA >10% and 31.4% patients had DLQI > 10.
CONCLUSION: Our patients show a similar clinical profile and outcome as our Malaysian psoriasis population. However they tend to have a more severe disease. There is a need for a more effective targeted therapy for a better outcome.
Study site: Dermatology clinic, Hospital Sultan Abdul Halim (HSAH), Sungai Petani, Kedah, Malaysia
Fulltext A comparison of antiemetic efficacy of droperidol alone and in combination with metoclopramide in day surgery anaesthesia

Loo CC, Thomas E, Tan HM, Sia TH

Med J Malaysia, 1997 Sep;52(3):264-8.
PMID: 10968096

We have studied the antiemetic efficacy of droperidol alone, and in combination with metoclopramide in first trimester termination of pregnancy in day surgery. The aim was to determine whether the addition of metoclopramide could further reduce the incidence of postoperative nausea and vomiting (PONV) but avoid excessive sedation. Group I (control, n = 40) received i.v. droperidol 0.625 mg at induction. Group II (study, n = 40) received i.v. droperidol 0.625 mg and i.v. metoclopramide 10 mg at induction. The incidence of nausea at 1 and 2 hours postoperatively was 23% and 10% in group I, and 5% and nil in group II respectively. The difference in the incidence of nausea was significant at p < 0.05 at one hour but not at two hours postoperatively. No patients vomited. There was no difference in the sedation and pain score between them. We did not observe any significant side effects attributable to either drug. All patients were discharged home within 3 hours. We conclude that in the prevention of PONV, the combination of metoclopramide and droperidol is superior to the use of droperidol alone at one hour but not at two hours postoperatively.
A randomized, controlled trial to assess the safety of switching stable renal transplant patients from Sandimmun to Sandimmun Neoral

Loo CS, Morad Z, Lim TO, Fan KS, Suleiman AB

Transplant Proc, 1996 Jun;28(3):1328-9.
PMID: 8658680
Fulltext Pontine myelinolysis following correction of hyponatraemia

Loo CS, Lim TO, Fan KS, Murad Z, Suleiman AB

Med J Malaysia, 1995 Jun;50(2):180-2.
PMID: 7565192

A patient with severe hyponatreamia secondary to chronic renal failure was treated with peritoneal dialysis (PD). On the third day of admission, she developed progressive obtundation. Neurological examination showed bilateral brisk reflexes with intact brain stem reflexes. Magnetic resonance imaging demonstrated patchy demyelination of the pontine area indicating central pontine myelinolysis (CPM). Despite supportive measures, the patient died on the fifteenth day of admission. The rate of correction of hyponatraemia with peritoneal dialysis can be rapid and detrimental to hyponatraemic chronic renal failure patients and careful monitoring of serum sodium level is advocated.
A 10-years retrospective study on Severe Cutaneous Adverse Reactions (SCARs) in a tertiary hospital in Penang, Malaysia

Loo CH, Tan WC, Khor YH, Chan LC

Med J Malaysia, 2018 04;73(2):73-77.
PMID: 29703869 MyJurnal

INTRODUCTION: Severe cutaneous adverse drug reactions (SCARs) are not uncommon and potentially lifethreatening. Our objective is to study the patient characteristics, the pattern of implicated drugs and treatment outcome among patients with SCARs.
METHODS: A 10-year retrospective analysis of SCARs cases in Penang General Hospital was carried out from January 2006 to December 2015. Data collection is based on the Malaysian Adverse Drug Reactions Advisory Committee registry and dermatology clinic records.
RESULTS: A total of 189 cases of SCARs were encountered (F:M ratio; 1.2:1.0; mean age of 45 year). The commonest manifestation was Stevens-Johnson Syndrome [SJS] (55.0%), followed by toxic epidermal necrolysis [TEN] (23.8%), drug rash with eosinophilia and systemic symptoms [DRESS] (12.7%), acute generalised exanthematous pustulosis [AGEP] (4.8%), SJS/TEN overlap syndrome (2.6%) and generalised bullous fixed drug eruptions [GBFDE] (1.1%). Mean time to onset for TEN/SJS/Overlap syndrome was 10.5±13 days; AGEP, three days; GBFDE, 2.5±0.7 days, and DRESS, 29.4±5.7 days. The most common drugs implicated were antibiotics (33.3%), followed by allopurinol (18.9%) and anticonvulsant (18.4%). Out of 154 cases of SJS/TEN/overlap syndrome, allopurinol was the commonest causative agents (20.1%). In DRESS, allopurinol accounts for 45.8% of the cases. The mortality rate in SJS, TEN and DRESS were 1.9%, 13.3% and 12.5% respectively. No mortality was observed in AGEP and GBFDE.
CONCLUSION: The commonest manifestations of SCARs in our setting were SJS, TEN and DRESS. Allopurinol was the most common culprit. Thus, judicious allopurinol use is advocated and pre-emptive genetic screening for HLAB *5801 should be considered.
Fulltext Randomised, open label, controlled trial of celecoxib in the treatment of acute migraine

Loo CY, Tan HJ, Teh HS, Raymond AA

Singapore Med J, 2007 Sep;48(9):834-9.
PMID: 17728965

INTRODUCTION: Migraine is a common disabling condition that results in considerable socioeconomic loss. The role of non-steroidal anti-inflammatory drugs (NSAIDs) in acute migraine has been well-established. We compared the efficacy of the cyclooxygenase-2 inhibitor celecoxib with the NSAID, naproxen sodium, in the treatment of acute migraine.
METHODS: This was a randomised, open label, controlled trial. We selected patients with a diagnosis of migraine, based on the International Headache Society revised criteria. 60 patients were randomised to either celecoxib 400 mg (30 patients) or naproxen sodium 550 mg (30 patients). Patients took the study medicine for the first acute migraine episode that occurred during the study period and reported the headache reduction based on a visual analogue score (VAS). Patients were reviewed after a month to check on VAS at one and two hours, compared to the baseline. Any side effects of the medication were also recorded.
RESULTS: Of the 52 patients who completed the study, eight did not experience any headaches. The mean VAS in the celecoxib group improved significantly from baseline (6.48 +/- 1.53) to one hour (4.28 +/- 2.11) and two hours (2.24 +/- 2.57) (p-value is less than 0.0005). The mean VAS in the naproxen sodium group also improved significantly from baseline (7.30 +/- 1.66) to one hour (4.81 +/- 2.50) and two hours (2.63 +/- 2.65) (p-value is less than 0.0005). However, there was no significant difference between the magnitudes of improvement between the treatment groups. The incidence of gastric pain was significantly higher in the naproxen sodium group (p-value is equal to 0.029).
CONCLUSION: In comparison with naproxen sodium, celecoxib was equally effective in relieving pain in acute migraine and caused significantly less gastric pain.

Study site: neurology outpatient clinic in Pusat Perubatan
Universiti Kebangsaan Malaysia (PPUKM)
Fulltext Estimation of glomerular filtration rate using serum cystatin C in overweight and obese subjects

Marwyne MN, Loo CY, Halim AG, Norella K, Sulaiman T, Zaleha MI

Med J Malaysia, 2011 Oct;66(4):313-7.
PMID: 22299549 MyJurnal

Obesity and overweight are strong independent risk factors for chronic kidney disease (CKD). Using serum creatinine-based estimated glomerular filtration rate (eGFR) equations in these subjects may be inaccurate. On the other hand, cystatin C-based eGFR equations may overestimate CKD prevalence as recent findings suggest an association of cystatin C with obesity. The objective of this study was to assess the accuracy of a cystatin C-based eGFR equation compared to two creatinine -based eGFR equations in overweight and obese subjects.
The quality of life among coronary heart disease patients at a teaching hospital

Ho SE, Ting CK, Das S, Loo CY, Rohayu AB, Khor SY, et al.

Clin Ter, 2011;162(3):217-22.
PMID: 21717045

Quality of life after acute coronary heart disease amongst patients is important outcome factor in deliberations of patient's care. The main aim of the study was to examine the quality of life amongst acute CHD patients.
Fulltext Anticardiolipin antibody isotype profile in lupus nephritis--a cross sectional survey

Azizah MR, Loo CS, Zulkifli MN, Shahnaz M, Zaki M, Nasuruddin BA

Med J Malaysia, 1998 Sep;53(3):257-62.
PMID: 10968163

Thirty-six patients with lupus nephritis (LN) attending the Nephrology Clinic, Hospital Kuala Lumpur were studied for the prevalence of anticardiolipin antibody (ACA) isotypes (IgG and IgM) and other associated antibodies, antinuclear antibody (ANA) and anti-ds DNA antibody and to determine the possible association between serological and clinical parameters. The study population consisted of 20 (55.6%) Malays, 15 (41.7%) Chinese and 1 (2.8%) Indian with a mean age of 31.4 +/- 11.3 years, range 14 to 60 years. The female to male ratio was 11:1. The average time between diagnosis and blood sampling was 4.4 years (range 0.25 to 15 years). Increased ACA levels were found in 20 (55.6%) patients where raised IgG ACA and IgM ACA were observed in 20 (55.6%) and 2 (5.6%) cases respectively. ANA and anti-ds DNA antibodies were detected in 22 (61.1%) and 4 (11.1%) individuals respectively, with the majority (82%) showing a speckled pattern of nuclear staining. However, neither the IgM ACA nor IgG ACA showed any significant association with thrombosis or any other clinical parametres. Our preliminary study indicates that ACA is a frequent finding in lupus nephritis and that the IgG isotype is more prevalent.

Study site: nephrology Clinic, Hospital Kuala Lumpu
Fulltext Acute protein loading in the assessment of renal reserve

Loo CS, Zaki M, Sulaiman AB, Sukanya AB, Voon YC, Kua SL

Med J Malaysia, 1994 Mar;49(1):36-43.
PMID: 8057988

Functional renal reserve is a measure of the capacity of the kidney to increase the glomerular filtration in response to the stimulus of a protein meal or amino acid infusion. The aim of this study was to evaluate the usefulness of protein meal test to measure functional renal reserve in normal subjects and various groups of renal patients. One hundred and twenty five subjects from the Nephrology Clinic, Kuala Lumpur General Hospital were subjected to a protein loading test to measure their renal reserve. Each subject had to eat a 100 gram cooked chicken meat and timed 2 hours urine collections before and after the test meal were done to measure the creatinine clearances. The 62 healthy subjects showed a mean renal reserve (creatinine clearance after protein loading-baseline creatinine clearance) of 31.0 ml/min. The 31 subjects with various kidney diseases showed a mean renal reserve of 13.5 ml/min. The 19 renal transplant recipients showed renal reserve of 13.2 ml/min. The 12 nephrectomised donors showed renal reserve of 5.4ml/min. Renal reserve may be used to assess suitability of living related transplant donor for nephrectomy.

Study site: Nephrology Clinic, Kuala Lumpur General Hospital
The effect of medical education and counselling on treatment adherence and disease severity in patients with acne vulgaris: a non-randomised interventional study

Ling WY, Loo CH, Nurul Shafaril Niza MA, Tan JL, Norazlima MA, Tan WC

Med J Malaysia, 2023 May;78(3):263-269.
PMID: 37271834

INTRODUCTION: Acne vulgaris (AV) is a common inflammatory skin disease affecting adolescents and young adults. It affects one's self-esteem and social relationship. In addition, poor adherence to treatment can cause poor treatment response and disease recurrence. This study aims to determine the effectiveness of medical education and counselling on treatment adherence and disease severity.
METHODS: This is a non-randomised interventional study with age- and treatment- matched control conducted in a tertiary dermatology clinic from July 2021 to June 2022. Patients in the intervention group received a 10 min video presentation on acne, followed by treatment counselling. The adherence rate was determined objectively (pill counting and tube weighing) and subjectively (ECOB questionnaire). The disease severity was assessed using the Comprehensive Acne Severity Scale (CASS) and Global Acne Grading System (GAGS).
RESULTS: A total of 100 patients completed the 12-week study. With intervention, patients have better adherence to topical medication (5% benzoyl peroxide gel: 71% vs 57.9%, p= 0.031; 0.05% tretinoin cream: 58.7% vs 45.4%, p= 0.044) at week 12. However, the intervention program did not improve adherence to oral medication. Overall, with intervention, a significantly higher percentage of improvement in disease severity was noted (47.3% vs. 39.1%, p=0.044). Nonadherence to treatment was attributed mostly to forgetfulness in 54% of the patients, followed by a busy lifestyle (41%) and little knowledge of acne (26%).
CONCLUSION: Patients have significantly better adherence to topical medication with education and counselling. Better adherence to treatment leads to more remarkable disease improvement.

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