BACKGROUND: Identification and preservation of the recurrent laryngeal nerve (RLN) is of major concern in surgery of the thyroid gland. The purpose of this study was to review the surgical anatomy of the nerve and to describe its relationship to other important structures.
METHODS: A total of 325 patients were accrued in this prospective non-randomized study from January 1999 to December 2000. All patients who had total, subtotal and hemithyroidectomies were included in this study. Each side of the thyroid gland was considered as a separate unit in the analysis of the results.
RESULTS: Two hundred and seventy-six patients had thyroidectomies as their primary operation, while 49 patients had them as a reoperative procedure. There were 276 women and 46 men (6:1 female to male ratio) with a mean age of 43.1 years (range: 10-84 years). The total number of dissections was 502. The RLN was clearly identified in 491 (97.8%) dissections: single trunk in 323 dissections (65.8%), two extralaryngeal branches in 164 dissections (33.4%), and three extralaryngeal branches in three dissections (0.6%). One non-recurrent laryngeal nerve was encountered (0.2%) in the series. The proximity of the RLN to the inferior thyroid artery (ITA) was noted in 444 (90.4%) dissections: 372 (83.8%) nerves were described to be posterior and intertwined between the branches of the ITA, and in 72 (16.2%) RLNs, they were observed to be anterior to the ITA. The close association of RLN to an enlarged tubercle of Zuckerkandl was documented in 381 dissections (73.7%). A total of 231 RLNs (60.8%) was seen in the tracheoesophageal groove, 18 (4.9%) nerves were observed to be lateral to the trachea, and in 109 (28.3%), they were posterior in location. Of concern in 23 (6.0%) dissections the RLN was on the anterior surface of the thyroid gland, which is at highest risk of injury before curving down to pass behind the tubercle of Zuckerkandl. It appears that the anterior course of the RLN was seen more often in the reoperative procedures to the thyroid gland (20%).
CONCLUSIONS: Although various methods of localizing the RLN have been described, surgeons should be aware of the variations and have a thorough knowledge of normal anatomy in order to achieve a high standard of care. This will ensure the integrity and safety of the RLN in thyroid surgery. The anatomical variation may be minor in degree, but is of great importance as it may affect the outcome of the surgery and the patient's quality of life.
Abdominal aortic aneurysms (AAA) are common in the Caucasian population. Apart from reported differences in the occurrence of AAA in the black and white populations, there are few studies on the incidence of AAA in the Asian population.
Breast ductal carcinoma in-situ (DCIS) is increasingly being diagnosed as a result of screening mammography and better pathological recognition. With this and the rising breast cancer incidence in Singapore, DCIS is poised to become a bigger part of surgical practice. Principles of screening, diagnosis and management of DCIS have also been rapidly evolving. Against this background, a clinicopathological audit of recent cases of DCIS in our centre was performed.
BACKGROUND: Thyroid surgery is usually performed under general anaesthesia. However, for a selected group of patients, local anaesthesia may be preferable. The aim of this study was to review the authors' experiences with local anaesthesia with regard to the safety and outcome of this approach.
METHODS: A total of 65 consecutive patients who underwent primary thyroid surgery were accrued prospectively into this study from May to December 1999. A field block with 0.5% bupivacaine and adrenaline in 1:200 000 dilutions was given in all cases. In addition, light sedative and narcotics were given as necessary to achieve patient comfort and cooperation. The pain experienced during surgery was recorded using a visual analogue scoring system on a scale of 1-10.
RESULTS: Unilateral thyroid resection was performed in 58 patients, isthmectomy in four patients and bilateral thyroid resection in three patients, two of which were in their second trimester of pregnancy diagnosed with papillary thyroid cancer. There were 55 women and 10 men with an average age of 38.2 years (range: 18-67 years). No conversion to general anaesthetic was needed, and the mean operating time was 80 min. The postoperative recovery was quick with this technique and, of interest, 22 (33.9%) patients were discharged within 6 h following the surgery. Overall 62 (95.4%) patients were discharged in the first 24 h and three (4.6%) patients after 24 h. There were no significant postoperative complications encountered except for wound infection in two (3.1%) patients.
CONCLUSIONS: Thyroid surgery under local anaesthesia can be performed safely in a selected group of patients. It offers an effective alternative approach to general anaesthesia and is associated with low morbidity and high levels of patient satisfaction.
Aims: To assess the association between non-steroidal anti-inflammatory drug (NSAID) use and upper gastrointestinal (GI) tract-related hospitalizations and to evaluate inpatient healthcare resource utilization associated with these complications in Malaysia.
Methods: A retrospective case control study was performed using medical records of patients admitted to two Malaysian hospitals during 1999 and 2000. Cases were identified based on mode of presentation at hospital admission. One control was identified for each case, matched by age, sex and admission date. NSAID exposure was determined by drug use during one year prior to admission. Conditional logistic regression analysis was used to determine the association between NSAID use and upper GI complications, adjusting for predictors.
Results: The 273 cases were significantly more likely to have used NSAIDs in the year prior to hospitalization than controls (27.8% vs. 6.2% of patients; P < 0.0001). Conditional logistic regression analysis adjusting for other predictors showed that the odds of being hospitalized for upper GI tract complications were 4.1 times higher among NSAID users than non-users (95% CI = 1.88-9.12). Other risk factors for GI-related hospitalizations were a history of upper GI tract complications (OR = 5.8, 95% CI = 1.28-26.53), use of gastroprotective agents (OR = 5.3, 95% CI = 1.67-16.79), and use of antacids (OR = 5.0, 95% CI = 2.10-11.91) in the previous year.
Conclusion: This study demonstrated that NSAID exposure was significantly higher among patients hospitalized for GI-related complications than for other reasons, indicating that NSAID use is an independent risk factor for upper GI tract complications in this Malaysian sample.
Background: In the ageing population, osteoporosis (OP) is becoming an increasingly common medical condition. Effective interventions are available that should enable clinicians to limit the magnitude of the burden but this will require the proper knowledge of OP and its management. Objective: To explore family physicians' perceptions of OP and to identify their educational needs in this area.
Method: Self administered questionnaires about OP knowledge and management were distributed to attendees of Rheumatology Workshops for primary care physicians between March and November 2005, in Malaysia.
Results: A total of 134 primary care physicians participated in this survey comprising 53% private practitioners, 44% government doctors, 2.2% from academic institutions and 0.7% not stated. The majority 73 (54.4%) had practiced for more than 10 years, 29 (21.6%) under 5 years and 32 (23.9%) between 5 and 10 years. 127 (94.4%) of them saw patients with osteoporosis. Those who had qualified for over 10 years were more likely to treat OP (p = 0.012). 82% felt that osteoporosis was under-diagnosed whereas 14.9% thought it was over diagnosed. This was not related to specialty or years qualified. Regarding the reasons for under-diagnosis of osteoporosis, 71% stated that they had no access to DXA screening, 74% had no access to heel ultrasound, 66% felt the disease was asymptomatic, 37% felt that investigations were costly and only 11% perceived the problem as a lack of referral for specialist opinion. Majority of respondents recognized the risk factors for OP such as increasing age (93%), post menopausal state (90%), positive family history (70%) and a previous low trauma fracture (65%). 7% were not sure how to further investigate a case of OP. For all categories of bone density, under 50% would advise changes in life-style measures. For osteopenia, 65.7% recommended calcium, 54.5% activated vitamin D products. For OP, 79.1% would use bisphosphonates, 50% calcium. In established OP, 80.6% would use bisphosphonates, 44% calcium. Usage of HRT and SERMs ranged between 20% and 30% in all categories. 63% were aware of the Malaysian Clinical Practice Guidelines on Osteoporosis. 22% would not refer to a specialist, whereas 50.4% would refer severe cases only. Almost all (98%) requested for further continuing medical education on OP.
Conclusions: In this study, the majority of primary care physicians had a reasonable working knowledge of the management of OP. However, 71% had no access to DXA. Therefore, awareness needs to be supplemented by adequate facilities to further improve the management of OP in the community.
In the present study, we evaluated the association between the TP53BP1 Glu353Asp and T-885G polymorphisms and breast cancer risk as well as with the clinicopathological characteristics of the patients. Genotyping of these polymorphisms was performed on 387 breast cancer patients and 252 normal and healthy women who had no history of any malignancy using PCR-RFLP method in a hospital-based Malaysian population. Breast cancer risk was not observed among women who were heterozygous (OR(adj) = 0.887; 95% CI, 0.632-1.245) or homozygous (OR(adj) = 1.083; 95% CI, 0.595-1.969) for Asp allele, and those carriers of Asp allele (OR(adj) = 0.979; 95% CI, 0.771-1.243). Similarly, women who were TG heterozygotes (OR(adj) = 1.181; 95% CI, 0.842-1.658) or GG homozygotes (OR(adj) = 1.362; 95% CI, 0.746-2.486) and carriers of G allele (OR(adj) = 1.147; 95% CI, 0.903-1.458) were not associated with increased risk of breast cancer. Asp allele genotype was significantly associated with ER negativity (p = 0.0015) and poorly differentiated tumours (p = 0.008), but G allele genotype was not associated with the clinicopathological characteristics. In conclusion, Glu353Asp and T-885G polymorphic variants might not have an influence on breast cancer risk, thus might not be potential candidates for cancer susceptibility. Glu353Asp variant might be associated with tumour aggressiveness as defined by its association with ER negativity and poorly differentiated tumours.
Objective: This interventional study was aimed to investigate the effects of dark chocolate
consumption on anxiety, depression, and stress (ADS) among trainee nurses. Methods: A
parallel and open-label experimental study was conducted. Of the 128 nurses enrolled, only 47 participated in the intervention study (mean age = 20.32 years; ranging from 19 to 22 years old). They were randomly assigned to an intervention group (IG, n = 25) or a control group (CG, n = 22). The IG consumed dark chocolate and CG ingested mineral water for 3 consecutive days. The validated Malay Hospital Anxiety and Depression Scale (HADS) and Depression, Anxiety and Stress Scale (DASS-21) were utilised for measuring ADS levels. Data were analysed descriptively and score comparisons were conducted using non-parametric tests. Results: No significant differences between IG and CG in ADS scores were detected at baseline (all p > 0.05). At post-consumption, ADS score were significantly reduced in IG (all p < 0.01) compared with CG (all p < 0.05). Larger effect sizes among these respondents had also revealed that there were mood-elevating effects of dark chocolate consumption. Conclusion: This study has discovered that 3-day consumption of dark chocolate may alleviate ADS status among trainee nurses suggesting that dark chocolate may have a more prominent role in improving emotional and mood generally. Further investigations are however warranted to confirm this finding.
Objective: The aim of the study is to examine the prevalence and factors influencing PTSD among a sample of help-seeking women experiencing domestic violence. Methods: This was a cross-sectional survey study of 40 women in two shelters in Malaysia from 2007 to 2008. Measures include the Detailed Assessment of Posttraumatic Stress; the Measure of Wife Abuse; the Posttraumatic Cognitions Inventory; the Coping Scale for Adults; and the Provision of Social Relations. Results: Results showed that 60% of subjects
exhibited patterns of symptoms consistent with the diagnosis of PTSD. The most prominent posttraumatic symptoms reported were re-experience, avoidance, dissociative responses, and symptoms of increased arousal. Both negative appraisals about themselves and self blame for the abusive situations were positively associated with increased tendency to develop PTSD. The greater use of optimism coping style and the higher quality social
support appeared to lead to a significantly reduced tendency of developing PTSD. Negative appraisals about themselves were found to be the strongest positive predictor of PTSD [R² = 0.32, F(1,38)=17.67, p
Objective: The objective of this study is to identify the correlation between psychological factors and insomnia and the impact of insomnia on daytime sleepiness. Methods and Results: The participants were recruited through convenient sampling and consist of 173 working adults in Georgetown, Penang, aged 20 to 60 years. Participants completed the General Health Questionnaire (GHQ), Athens Insomnia Scale (AIS) and Epworth Sleepiness Scale (ESS). The results revealed that the prevalent of insomnia was 34.7%. There was a positive correlation between psychological distress and insomnia r = .481, p < .001 and also a positive correlation between insomnia and daytime sleepiness r = .334, p < .001. Conclusion: It is concluded that psychological distress typically causes sleep difficulties, and sleep deprivation leads to daytime sleepiness.
Objective: This study aimed to determine the association between the personality traits and
social factors with compliance to anti-hypertensive pharmachotherapy. Methods: This cross
sectional study was conducted from 1st of June until 31st of December 2004, which involved
Hospital Universiti Kebangsaan Malaysia Primary Polyclinic in Bandar Tasik Selatan,
Cheras and Salak Polyclinic in Sepang, Selangor. A total of 200 patients who fulfilled all the inclusion criteria, were selected as respondents. This study used the Mini International Neuropsychiatric Interview (M.I.N.I) for the psychiatric diagnoses and personality characteristics were assessed by using Personality Assessment Schedule (PAS) Results: The prevalence rate of non-compliance was 38.5%. Paranoid personality trait (27.3%) was the most common type of personality traits that associated with non-compliance to the medications prescribed. The results of this study revealed a statistically significant difference between drug compliance and age, race, gender and the site where the study was conducted. No association was found between patients’ education level, occupation, income, marital status, family history of hypertension and personality traits and drug compliance. Conclusion: This study suggested that drug compliance among hypertensive patients was influenced by the presence of psychosocial factors. Hence, it is important for medical practitioners to understand these factors and administer treatment more individual.
Objective: To investigate the prevalence of genital arousal disorder and the potential risk
factors that may impair genital arousal among women at a primary care setting in Malaysia.
Methods: A validated questionnaire for sexual function was used to assess genital arousal
function. A total of 230 married women aged 18–70 years old participated in this study. Their sociodemographic and marital profiles were compared between those who had genital arousal disorder and those who did not. The risk factors were examined. Results: The prevalence of genital arousal disorder in the primary care population was 50.4% (116/230). Women with genital arousal disorder were found to be significantly higher in groups of more than 45 years old (p55) (p=.001), those having 4 children or more (p=.028), those having less sexual intercourse (less than 1–2 times a week) (p=.001), and those at post-menopausal state (p=.002). There was no significant difference between these two groups in term of salary (p=.29), suffering from medical problems (p=.32), dysmenorrhea (p=.95), menarche (p=.5) and hormonal replacement therapy (p=.6). Conclusion: Women with infrequent sexual intercourse are less likely to be sexually aroused (OR=0.29, 95% CI: 0.11-0.74).
Objective: To investigate the correlation between sexual desire and sexual arousal among Malaysian women in a primary care setting. Methods: The Malay Version of Female Sexual Function Index (MVFSI) was used to assess low sexual desire and lack of sexual arousal among the respondents. A total of 230 married women aged 18 – 70 years old participated in this study. Their sociodemographic, marital profiles and correlation between low sexual desire and lack of sexual arousal were examined. Results: More than 60% respondents with low sexual desire have co-exist low sexual arousal and 94.4% respondents with high sexual desire do have high sexual arousal ( χ²= 79.6, p
Objective: A study was conducted at the Universiti Kebangsaan Malaysia Medical Center (UKMMC) adult psychiatric clinic from June 2006 to December 2006. The aim was to assess the rate of the metabolic syndrome in a group of outpatients with mood disorders and schizophrenia and also to determine the relationship of this condition with sociodemographic factors and psychiatric illness characteristics.
Methods: A total of 51 subjects agree to participate of which 100 were approached. The International Diabetes Federation (IDF)(2005) criteria are used for the diagnosis of metabolic syndrome and Diagnostic Statistical Manual Version IV (DSM-IV) criteria are used to made psychiatric diaognosis.
Results: The prevalence of metabolic syndrome was found to be 37.2% and was significantly higher amongst mood disorders patient. However the metabolic syndrome is not associated with the anti psychotic therapy (p=0.41).
Conclusion: This study suggests that it is important for the psychiatrist to monitor metabolic syndrome in any of their patients.
Study site: Psychiatric clinic, Pusat Perubatan Universiti Kebangsaan Malaysia (PPUKM), Kuala Lumpur, Malaysia