Browse publications by year: 2006

  1. Baharudin, A., Din Suhaimi, S., Omar, E.
    MyJurnal
    Schwannomas are benign slow growing lesions arising from the Schwann cells that ensheath the axons of the peripheral, cranial and autonomic nervous systems. Intracranial schwannomas develop from the facial nerve much more rarely than from the vestibular or trigeminal nerves. Ancient schwannoma is an unusual histological variant of this rare disease. A 48 years old man who had recurrent facial nerve paralysis and right external auditory mass is presented in this case report.
    MeSH terms: Axons; Facial Nerve; Facial Paralysis; Humans; Male; Neurilemmoma; Schwann Cells; Trigeminal Nerve; Bell Palsy; Rare Diseases
  2. Adibah, I., Wan Abu Bakar, W.Y., Nik Mohamed Zaki, N.M., Nik Hazlina, N.H., Venkatesh, R.N.
    MyJurnal
    Endometrial stromal sarcoma is a rare tumour of the uterus. We reported a case of a young lady with endometrial stromal sarcoma. She became pregnant while having the disease and delivered a healthy baby, her sixth, without any complication. A total abdominal hysterectomy with bilateral oopherectomy was performed subsequently. She refused any added treatment after the operation. To date, she is free of any recurrence.
    MeSH terms: Female; Humans; Hysterectomy; Neoplasm Recurrence, Local; Endometrial Neoplasms; Sarcoma, Endometrial Stromal
  3. Ahmad, R., Ishlah, W., Norie A.
    MyJurnal
    The ultimate goal of treatment of glottic malignancy is eradication of the cancer and preservation of maximum function. Ideally this would mean return of normal speech, respiration and deglutition. The foundation of vertical partial laryngectomy (VPL) is based on the knowledge of laryngeal anatomy and an understanding of how cancers invade the larynx. The VPL surgery of the glottic cancer is based on oncological sound principles, which will be further disscussed in this article. For the purpose of description we briefly presented 3 of our cases that underwent vertical partial laryngectomy for glottic cancer.
    MeSH terms: Deglutition; Goals; Laryngectomy; Larynx; Preservation, Biological; Speech; Tongue Neoplasms
  4. Lim, K.J., Omar, M.H., Jamil, M.A., Ng, S.P.
    MyJurnal
    Introduction: Operative laparoscopy is the gold standard approach for treatment of tubal pregnancy. Although benefits of this approach are well established, data on its uptake trend in Malaysia is largely unknown. Objective: This study aims to determine the operative laparoscopy uptake in management of tubal pregnancy at a busy tertiary hospital and whether the benefits associated with laparoscopic surgery was achieved. Materials and Methods: This prospective observational study was conducted on all women admitted for tubal pregnancy at Hospital Sultanah Aminah, Johor Bahru, a public tertiary hospital over a period of 12 months. The on-call team was responsible for the surgical approach. Patient’s clinical presentation, operative laparoscopic uptake, factors affecting the choice of approach and duration of hospitalization were analyzed. Results: The tubal pregnancy rate was 7.6 per 1000 deliveries. Twenty- seven of the 138 cases (20%) had hypovolemic shock, requiring urgent laparotomy and were excluded from study. The operative laparoscopy rate for stable tubal pregnancy was only 42.3% (47 of 111 cases). Women managed laparoscopically were associated with a significantly higher pre-operative hemoglobin level, mostly nullipara and had surgery performed during office hours. They waited longer for their surgery but were discharged earlier compared to the laparotomy group. There was no difference in the duration of hospitalization. Conclusions: Less than half of all hemodynamically stable tubal pregnancies in our hospital had operative laparoscopy. The current laparoscopy uptake rate can be further improved.
    MeSH terms: Female; Hemoglobins; Hospitalization; Humans; Laparotomy; Malaysia; Patient Discharge; Laparoscopy; Pregnancy; Pregnancy, Tubal; Prospective Studies; Pregnancy Rate; Hypovolemia; Tertiary Care Centers
  5. Nurdeen Deuraseh
    MyJurnal
    It has often been assumed that the translation of Greek medical books into Arabic was the main determinant in establishing Islamic medicine. This assumption must be put into proper perspective. Because, it is certainly true that the Prophet Muhammad (s.a.w) inspired love and passion for learning and called upon mankind to develop their faculties and intellects. His teaching on medicine indicates that no student of history of Islamic medicine can ignore the importance of the Prophet’s sayings and practices in this regard. This leads us to accept the fact that the principles of medicine in Islam, as a whole, are deeply rooted in the Qur’an and Ahadith of the Prophet (s.a.w), although this Islamic medicine itself came into being, especially during the Abbasid period, as a result of the integration by Muslims of several older traditions of medicine, most importantly Greek.
    MeSH terms: Books; Faculty; Islam; Love; Medicine; Students; Translations
  6. Khairidzan, M.K., Fatimah, S.S., Thangasamy, V.K.
    MyJurnal
    Pterygium is a common external eye problem. It is more frequently seen in tropical areas regions where exposure to ultraviolet sunlight is high. Clinically, a pterygium is a wing shaped fibrovascular growth arising from the bulbar conjunctiva onto the superficial cornea. Complications of pterygium include decreased in visual acuity, dryness, foreign body sensation and persistent redness. Surgical management is the mainstay of treatment for this condition. Numerous surgical techniques have been described in the treatment of pterygium. They include the bare sclera technique, simple direct conjunctival closure, rotational conjunctival graft and conjunctival autograft. Additional treatment to some of these techniques may include the use of beta particle therapy and antimetabolite therapy. Despite the wide range of surgical procedures described for its treatment, the main concern from these procedures has been the recurrence, which could be as high as 30% to 70%. Recurrent pterygium is often accompanied by increased conjunctival inflammation and accelerated corneal involvement. Repeated surgical procedures often only worsen the situation, as loss of conjunctival tissue and scarring can result in obliteration of the fornices and mechanical restriction of extraocular movements, with clinically significant diplopia. In Hospital Tengku Ampuan Afzan, pterygium excision is the most common surgical procedure after cataract extraction. We reviewed patients who had undergone pterygium surgery in HTAA in order to determine the most effective surgical method that could minimize recurrence. PURPOSE: To compare success rates of various excision techniques performed for primary and recurrent pterygium in Hospital Tengku Ampuan Afzan, Kuantan, Pahang.
    METHODS: The outcome of 47 cases of pterygia (44 primary and 3 recurrent) excised with various techniques between January 2004 to September 2004 was retrospectively reviewed. Six clinical specialists and four trainees performed the surgical procedures. Outcome was evaluated in terms of recurrence of pterygia onto the cornea. RESULTS: The mean follow up was 3.04 months (range, 1-7 months). All pterygia were morphologically graded as intermediate or fleshy type except one. Four types of pterygium excision techniques were performed. Twenty-four cases had bare sclera, seventeen cases had conjunctival autograft transplantation, six cases had direct conjunctival closure and one had amniotic membrane transplantation done. Recurrence of pterygia occurred in thirteen eyes. Twelve cases from primary pterygia group and one case from recurrent group recurred. Recurrence rate was noted to be higher in direct conjunctival closure (4 out of 6 cases) and lowest in conjunctival autograft transplantation (2 out of 17 cases). Recurrence rate for bare sclera technique was noted to rank second in this study (6 out of 24 cases). In five cases of recurrence, subconjunctival tissue invasions were more than 1 mm but further surgical interventions were not needed at the time of this review was done. CONCLUSIONS: Conjunctival autografting was found to have less recurrent rate when compared with other techniques. The bare sclera technique was quoted to be associated with higher recurrence rate in other literatures. Interestingly in our series, recurrence rate for direct conjunctival closure technique was higher when compared to the former technique. This may be related to inadequate excision of pterygia tissue, which led to direct apposition of abnormal tissue to the cornea in the direct conjunctival closure technique. Even though the bare sclera technique is associated with a higher recurrence rate, it is still the preferred excision technique. This could be because it is less time consuming and technically easier to perform. Based on this study, conjunctival autografting should be the surgical procedure of choice for pteryigum in order to minimise the risk of recurrence.
    MeSH terms: Amnion; Antimetabolites; Beta Particles; Cataract Extraction; Cicatrix; Conjunctiva; Conjunctivitis; Cornea; Diplopia; Follow-Up Studies; Foreign Bodies; Humans; Inflammation; Pterygium; Retrospective Studies; Sclera; Sensation; Specialization; Sunlight; Transplantation, Autologous; Visual Acuity; Autografts
  7. Hamidon, B.B., Sapiah, S.
    MyJurnal
    A 72-year old Englishman was admitted with rapid deterioration in cognitive function, gait disturbance, and cerebellar signs and lapsed into a coma within one week of admission to the hospital. He had long-standing hypertension and hypercholesterolaemia, for which he was on regular medication. He had suffered recurrent episodes of stroke between September 1997 and May 2001. Three months prior to presentation, he became forgetful and generally mentally slow, affecting his daily activities. He was also noted to have fluctuations in his conscious level, associated with myoclonic jerks of the limbs. The brain MRI revealed hyperintense lesions on T2- weighted images in the periventricular region, left corona radiata, centrum semiovale, pons, midbrain and right thalamus. The electroencephalograph revealed periodic sharp wave complexes, strongly suggestive of Creutzfeldt-Jakob disease. However, we were not able to get a tissue diagnosis or send the cerebrospinal fluid for protein 14-3-3.
    MeSH terms: Cognition; Coma; Electroencephalography; Gait; Hypercholesterolemia; Hypertension; Creutzfeldt-Jakob Syndrome; Male; Mesencephalon; Myoclonus; Pons; Thalamus; Stroke; 14-3-3 Proteins
  8. Amran, A.R.
    MyJurnal
    Pulmonary sequestration is defined as a segment of ç separated from the tracheobronchial tree and receiving its blood supply from a systemic artery rather than a pulmonary arterial branch. Classically, it has been described in two forms: (1) intralobar sequestration (ILS), in which the sequestrated part of lung lies within normal pulmonary visceral pleura, and (2) extralobar sequestration (ELS), in which the abnormal segment of lung is completely separate and enclosed in its own pleural investment. The term sequestration was coined by Pryce in 1946 to describe a disconnected bronchopulmonary mass or cyst with an anomalous systemic artery. Since this original description, terminology has become confusing as investigator has recognized many variants of sequestration not strictly meeting the original description. The spectrum now recognized as a continuum, with normal vessels supplying abnormal lung at one end and abnormal vessels supplying normal lung at the other end. Recently, we incidentally found an asymptomatic, intralobar pulmonary sequestration during CT pneumocolon.
    MeSH terms: Bronchopulmonary Sequestration; Cysts; Investments; Lung; Pleura; Pulmonary Artery; Research Personnel; Thorax; Tomography, X-Ray Computed
  9. Amran, A.R., Moosa, F.
    MyJurnal
    Extramedullary hematopoiesis (EH) is a rare but well-known compensatory mechanism of red blood cell production when the normal site of red bone marrow is unable to produce sufficient number of red blood cells. When the body demands for erythrocyte cells is high this lead to EH. This occurs mainly outside the bone marrow, usually paraspinally and sites which are normally observed in the fetus as in the liver, spleen, lymph nodes and less frequently at other sites such as adrenal, thymus, kidneys, pleura, breast, skin, gastrointestinal tract, dura mater and brain.This is more frequent in thalassaemia major (incidence up to 15% of cases), in myelofibrosis, myeloproliferative diseases (polycythemia rubra vera, chronic myeloid leukemia,), hemolytic anemias such as hereditary spherocytosis, pyruvate-kinase deficiency, medullary tuberculosis and in Paget’s disease of the bone. In some cases the cause of the EH are not identified [3]. We describe a case of EH in the presacral space that mimicked an ovarian mass on ultrasound in a patient with beta-thalassaemia intermedia.
    MeSH terms: Anemia, Hemolytic, Congenital; Bone Marrow; Brain; Dura Mater; Erythrocyte Count; Erythrocytes; Fetus; Hematopoiesis, Extramedullary; Humans; Liver; Lymph Nodes; Myeloproliferative Disorders; Pleura; Polycythemia Vera; Pyruvates; Spherocytosis, Hereditary; Spleen; Tuberculosis; Leukemia, Myelogenous, Chronic, BCR-ABL Positive; Incidence; beta-Thalassemia; Gastrointestinal Tract; Primary Myelofibrosis
  10. Amran, A.R., Ranganathan, S.
    MyJurnal
    Hepatocellular carcinoma (HCC) presenting with right atrial metastases and pulmonary tumour embolism is rare . Intracavitary cardiac metastasis is uncommon and metastasis to the right atrium is even less common. The majority of such cases are believed to be due to advanced HCC such as Stage III or IV, in which the progression rate is high, and in infiltrative HCC it tends to be associated with vascular invasion. The diagnosis of pulmonary intravascular tumour emboli is difficult to establish both clinically and with conventional radiographic studies. We report a case hepatocellular carcinoma associated with tumour thrombus in the inferior vena cava (IVC), right atrium and pulmonary tumour embolism detected with multidetector helical computerized tomography (MDHCT).
    MeSH terms: Heart Atria; Heart Neoplasms; Carcinoma, Hepatocellular; Liver Neoplasms; Neoplastic Cells, Circulating; Thrombosis; Vena Cava, Inferior; Tomography, Spiral Computed
  11. Vairavan, N., Rohaizak, M., Hairol, O.
    MyJurnal
    Appendicitis within an Amyand's hernia is rare; when it occurs it is often misdiagnosed as a strangulated inguinal hernia. Management of these cases needs to be individualized according to the presentation. In uncomplicated cases, we recommend concurrent appendectomy and darning repair of the hernia. We present such a case and review the related literature.
    MeSH terms: Appendectomy; Appendicitis; Diagnostic Errors; Hernia, Inguinal; Humans; Wound Healing; Disease Management
  12. Amran, A.R., Jayaram, G., Kumar, G.
    MyJurnal
    Paragangliomas are slow growing hypervascular tumour arising from neural crest cell derivatives throughout the body. In the head and neck region, the major paraganglial cells are located at the carotid bifurcation (carotid body), along the ganglia of the vagus nerve and along the nerves supplying the middle ear and jugular bulb. Less common locations include the larynx, orbit, nose and the aortic arch. Carotid body tumours are very rare neoplasms constituting less than 0.5% of all tumours. The true nature of the tumour is established at the time of attempted biopsy or surgical resection, sometimes with disastrous consequences. Only a few of the more than 500 cases reported in the literature have been studied and diagnosed preoperatively. These tumours must be considered in the evaluation of any lateral neck mass, even one located far from the carotid bifurcation. We report a case of bilateral carotid body tumours detected using 16-slice MDHCT in a patient who presented with pulsatile neck swelling for two years. This tumour is rarely malignant; however it produces serious problems by its progressive enlargement and impairment of adjacent structures in the neck. The treatment of choice is surgical resection; preferably to excise this lesion when it is small, because large, very vascular tumours are intimately attached to the carotid vessels and make surgical resection more hazardous. Pre-operative embolization can be performed in large tumours, as to facilitates surgery and reduce complication. In most of the cases, there is strong attachment of the tumour to the carotid arteries. When this is the situation, removal of the tumour means complete excision of both great arteries as well, and the mortality rate is 40 to 45 %. When surgical removal is not feasible, radiotherapy may help to control the tumour growth, although the results have not been encouraging. As it is very slow growing tumour with the growth rate of less than 5 mm per year tumours in old patients with significant risk factors for surgical intervention can be managed by observation alone.
    MeSH terms: Aorta, Thoracic; Biopsy; Carotid Artery, External; Carotid Body; Carotid Body Tumor; Ear, Middle; Ganglia; Humans; Larynx; Neural Crest; Nose; Orbit; Paraganglioma; Risk Factors; Vagus Nerve
  13. Zamzuri, Z., Nazri, M.Y., Amindudin, C.A., Azril, A., Shukrimi, A., Hafiz, A., et al.
    MyJurnal
    We report a case of a 14-year-old Malay male who fell at school and sustained bilateral olecranon fractures. He had undergone an open reduction and tension band wiring to stabilize the fracture. Three months after the surgery, the movement of both his elbows was satisfactory.
    MeSH terms: Elbow Joint; Fracture Fixation, Internal; Male; Ulna Fractures; Fractures, Bone; Olecranon Process
  14. Hadi, M.R.A., Basri, M.N., Ariff, O.
    MyJurnal
    The use of thrombolytic agent e.g. streptokinase is indicated in patients with early acute ST elevation myocardial infarction (MI) (if there are no contraindications) is becoming increasingly routine. Its use is however significantly limited by bleeding complications. Spinal epidural haematoma (SEH) is haemorrhage in the spinal epidural space after spinal anaesthesia. SEH may be acute or chronic, spontaneous, posttraumatic, or iatrogenic but its occurrence appears to be particularly associated with acquired coagulopathy from medications and disease states. Patients usually present with acute axial spine pain and evolving focal neurological deficits. With increasing number of available anticoagulants and patient receiving them, anaesthesiologists today have to face the challenge of balancing between risks and benefits of regional anesthesia in patients under such medications. The treatment of this condition involves the principles of conservative follow-up directed by an improving examination and an understanding of the pathophysiology of coagulopathy-induced spontaneous epidural bleeds. When the diagnosis is accomplished rapidly, surgical decompression can result in full functional recovery.
    MeSH terms: Anesthesia, Spinal; Anticoagulants; Blood Coagulation Disorders; Epidural Space; Fibrinolytic Agents; Follow-Up Studies; Hematoma, Epidural, Cranial; Hemorrhage; Humans; Iatrogenic Disease; Myocardial Infarction; Pain; Streptokinase; Risk Assessment; Decompression, Surgical; Hematoma, Epidural, Spinal
  15. Roszaman, R., Ghazali Ismail
    MyJurnal
    Choriocarcinoma is a malignant proliferation of syncytial trophoblast cells that do not form placental villi. It is a relatively rare and highly malignant variant of gestational trophoblastic disease. Although choriocarcinoma is mostly observed after a molar pregnancy, it may be preceded by any gestational event. It has been shown that even a partial mole can transform into choricarcinoma. Incidence rates of choriocarcinoma differ widely throughout the world. In Europe and North America, choriocarcinoma is reported to affect one in every 30,000 to 40,000 pregnancies, and one in 40 molar pregnancies. In South East Asia, choriocarcinoma is reported to affect one in every 500-3000 pregnancies. Following livebirth, choriocarcinoma with metastatic disease are important sequele (31%)(Tidy et al 1995). In the same study the reported median interval between antecedent pregnancy and choriocarcinoma is five months. Multi agent chemotherapy is required in the majority of patients (82%) for the high risk group. The prognosis for choriocarcinoma after a normal gestation is poorer. The mortality rate is also significantly higher than non-molar abortion (21%). Effective treatment with oral Methotrexate in metastatic choriocarcinoma to the lung confirmed the highly sensitive nature of this tumour to chemotherapy agent.
    MeSH terms: Animals; Asia; Choriocarcinoma; Chorionic Villi; Europe; Female; Humans; Hydatidiform Mole; Methotrexate; Molar; Moles; North America; Pregnancy; Prognosis; Trophoblasts; Trophoblastic Neoplasms; Uterine Neoplasms; Incidence; Gestational Trophoblastic Disease
  16. Khairidzan, M.K., Normalina, M., Ismail, M.A., Siraj, H., Nor Azlin, I.M., Zainol, R., et al.
    MyJurnal
    We present a case of a 45-year-old female who presented with blurring of right vision associated with constitutional symptoms. Examinations revealed right optic disc swelling with inferior exudative retinal detachment and hepatomegaly. Gynaecological examination showed a fungating cervical mass. Histopathological reports of cone biopsy confirmed the presence of large B cell non-Hodgkin lymphoma. HIV screening was positive. A diagnosis of HIV related lymphoma was made. Chemotherapy and antiretroviral treatment were instituted. The ocular signs resolved. However, the patient could not tolerate the side effects of medical therapy and opted for palliative treatment.
    MeSH terms: B-Lymphocytes; Biopsy; Eye; Female; Hepatomegaly; Humans; Lymphoma; Lymphoma, Non-Hodgkin; Palliative Care; Papilledema; Retinal Detachment; HIV Infections; Lymphoma, AIDS-Related; Gynecological Examination
  17. Nor Azlin, M.I., Amelia, A.Z., Zainul Rashid, M.R.
    MyJurnal
    Extrapelvic endometriosis is fairly rare and may occur in numerous sites throughout the body. Unnecessary investigation may be performed before the diagnosis could be made. Here we present two cases where endometriotic nodules occurred on a caesarean section scar and in the vagina. Further management is discussed in the report.
    MeSH terms: Cesarean Section; Cicatrix; Endometriosis; Female; Humans; Pregnancy; Vagina; Disease Management
  18. Khairidzan, M.K.
    MyJurnal
    Replacement therapy for toxoplasmosis was not a clear-cut choice since most of anti-parasitic agents available are also associated with Steven Johnson Syndrome. Further more the therapy has to be effective to control infection, which was previously achieved by oral Fansidar in this patient. Oral Azithromycin was seen as a drug of choice for these reasons. Corticosteroids were maintained since it was relatively indicated in both toxoplasmosis and SJS. Both conditions can results in visual impairment. SJS can be a life threathening condition and its ocular complications include conjunctivitis, ectropion or entropion, symblepharon, vascularization of the cornea, chronic dry eyes, and ankylosymblepharon. Proper management in dealing with both diseases is mandatory in order to prevent mortality and minimize the ocular complications. It has been shown in this case that the challenging part in managing patient with both diseases is to balance out between prevention of fatal consequences and the need control to the infection and preserving vision. Decisions on medical treatment for both conditions will remain controversial till reliable prospective randomized control trials are done to address the issues
    MeSH terms: Adrenal Cortex Hormones; Conjunctival Diseases; Conjunctivitis; Cornea; Drug Combinations; Ectropion; Entropion; Humans; Prospective Studies; Pyrimethamine; Stevens-Johnson Syndrome; Sulfadoxine; Toxoplasmosis; Vision Disorders; Azithromycin
  19. Roszaman Ramli, Ghazali Ismail
    MyJurnal
    Objectives: To evaluate the cost-effectiveness of the new oxytocin regimes in the augmentation of labour and the effect on the maternal and fetal outcome. Design: Randomized controlled trial. Setting: Labour ward of Hospital Tengku Ampuan Afzan, Kuantan. Participants: 230 pregnant women in labour at term with obstetric indications for labour augmentation. Methods: The women were randomly assigned to receive new oxytocin regime of 5 units in 500 cc of D/Saline at titration of 5 dpm with increments of 5 dpm to a maximum of 60 dpm. Or, old oxytocin regime of 1/2/4 units with titration of 20/40/60 dpm for primips and half the dosage for multips.
    Main outcome measures: Cost analysis, duration of labour, duration of augmentation, complication of labour, post partum hemorrhage (PPH), mode of delivery and perinatal outcome.
    Results: There was no significant difference in the mean duration of labour (6.8 h vs 6.7 h ; p = 0.45) and mean augmentation time (3.86 h vs 4.0 h; p = 0.9) between the regimes studied There seemed to be higher incidence of caesarean section in the old oxytocin group (6.5% vs 24.7%; p = 0.001). There was no significant influence on the neonatal morbidity and mortality (p = 0.07). A moderate reduction of annual cost for augmentation of labour was noted (RM 962.34).
    Conclusion: The results showed that the new oxytocin regime was more cost-effective without apparent increased in the maternal and fetal mortality and morbidity.
    MeSH terms: Cesarean Section; Female; Postpartum Hemorrhage; Humans; Labor, Obstetric; Labor, Induced; Oxytocin; Pregnancy; Incidence; Outcome Assessment (Health Care); Fetal Mortality
  20. Latiffah, A.L., Nor Afiah, M.Z., Nor Amalina, E., Shukor, A.M.N., Jalal, H.K.
    MyJurnal
    Objective To determine the prevalence of diseases and its association with the sociodemographic factors (age, sex and ethnicity) among elderly patients admitted to a tertiary hospital in Malaysia.
    Design A cross sectional study was conducted at various wards in the year of 2002. There were 9 333 respondents in this study selected by universal sampling. Setting A tertiary hospital in Malaysia. Main outcome measures Association between sociodemographic factors and prevalence of diseases. Results The mean age of the respondents was 68.9 + 6.8 years. Majority of the respondents were male (53.3%), Malays (43.7%) and married (73.2%). The prevalence of neoplasm was 15.5% followed by cataract (7.2%), diabetes mellitus (5.0%), hypertension (4.7%) and anemia (0.5%). There were significant association between gender and hypertension, diabetes mellitus, anemia and cataract (p
    MeSH terms: Aged; Anemia; Cataract; Cross-Sectional Studies; Diabetes Mellitus; Ethnic Groups; Humans; Hypertension; Malaysia; Male; Marriage; Neoplasms; Surveys and Questionnaires; Prevalence; Outcome Assessment (Health Care); Tertiary Care Centers
External Links