Displaying publications 21 - 40 of 90 in total

Abstract:
Sort:
  1. Tong SF, Abd Aziz NA, Chin GL, Khairani O
    Malays Fam Physician, 2006;1(1):15-8.
    PMID: 26998201 MyJurnal
    Identifying clinical features that differentiate acute febrile thrombocytopaenia from acute febrile illness without thrombocytopaenia can help primary care physician to decide whether to order a full blood count (FBC). This is important because thrombocytopaenia in viral fever may signify more serious underlying aetiology like dengue infection.
    Matched MeSH terms: Thrombocytopenia*
  2. Chooi, Fun Leong, Soon, Keng Cheong
    Medicine & Health, 2006;1(1):81-84.
    MyJurnal
     Myelofibrosis is a chronic myeloproliferative disorder characterised by splenomegaly, leukoerythroblastic anaemia, tear-drop poikilocytosis and marrow fibrosis. Splenectomy is indicated for patients requiring frequent transfusions or massive splenomegaly causing distressing symptoms and severe thrombocytopenia secondary to hypersplenism.A 56 year-old lady diagnosed to have primary myelofibrosis in year 2000 was referred to HUKM for further management of her increasing requirement of blood transfusion and massive splenomegaly. She has had two episodes of acute cholecytitis. Investigations done in our hospital showed that her hemoglobin level was 6.4g/dl, white cell count of 23.4x109/l, platelet count 163x109/l and peripheral blood showing leukoerythroblastic picture and tear-drop poikilocytosis. Leukocyte alkaline phosphatase score (NAP) was 184/100 neutrophils. Ultrasound of the abdomen showed massive splenomegaly with multiple gall stones. In view of the frequent transfusion requirements and symptomatic massive splenomegaly, splenectomy and cholecystectomy was performed. A review of her peripheral blood picture, post-splenectomy, showed marked reduction of the tear-drop poikilocytosis and leukoerythroblastosis. We believe that the spleen plays an important role in their formation, but the exact mechanism remains unclear.
    Matched MeSH terms: Thrombocytopenia
  3. Tong SF, Aziz NA, Chin GL
    Medicine & Health, 2006;1(1):25-30.
    MyJurnal
    A proportion of patients with acute viral fever with thrombocytopaenia does not necessary have dengue infection. Managing them indiscriminately as dengue infection may not be appropriate. The prevalence of this problem is not exactly known. The objective of this study is to determine the prevalence of acute non-dengue febrile thrombocytopaenia among adult patients presenting with acute non-specific febrile illness in an outpatient setting. This was a clinic-based cross sectional study. Consecutive patients presenting with non-specific febrile illness of less than two weeks were selected from the Primary Care Centre of Hospital Universiti Kebangsaan Malaysia (HUKM) and the Batu 9 Cheras Health Clinic. Full blood count was done on the day of visit and dengue serology was done on day five of illness for all patients enrolled. Seventy three patients participated in this study from May to November 2003. Among the patients, 35 (47.9%) were noted to have thrombocytopaenia. Fourteen (40%) patients with thrombocytopaenia were serologically negative. The prevalence of non-dengue febrile thrombocytopaenia was 19.2%. A significant number of patients with acute non-specific febrile illness with thrombocytopaenia were negative for dengue serology. These patients should be differentiated from those with acute febrile thrombocytopaenia, as they might differ in their natural history from those with dengue infection, and hence require different management strategies.

    Study site: Primary Care Centre of Pusat Perubatan Universiti Kebangsaan Malaysia (PPUKM)
    Matched MeSH terms: Thrombocytopenia
  4. Tong SF, Aziz NA, Chin GL
    Med J Malaysia, 2007 Dec;62(5):390-3.
    PMID: 18705473 MyJurnal
    Thrombocytopaenia is often relied upon as an important criterion for the diagnosis of dengue infection among patients presenting with an acute non-specific febrile illness. This study was aimed to assess usefulness of thrombocytopaenia in the diagnosis of acute dengue virus infection. This was a clinic based prospective cohort study from May to November 2003. Consecutive patients presenting with acute non-specific febrile illness of less than two weeks were selected from two urban primary care centres. We did full blood count examination (FBC) on the day of visit and dengue serology on day five of illness for all patients enrolled. We repeated the FBC examination for patients who had initial normal platelet counts. Thrombocytopaenia was defined as platelet count < 150 X 10(9)/L. Eighty-seven patients enrolled in the study. Complete data was available for 73 patients. The prevalence of acute dengue virus infection was 27.6%. The sensitivity and specificity were 88% and 71% respectively. The likelihood of acute dengue infection in the presence of thrombocytopaenia was 2.52 and likelihood of not having dengue infection in normal platelet count patients was 5.22. Thrombocytopaenia has fair predictive value in diagnosing acute dengue virus infection. It was more useful to exclude than to diagnose dengue infection.

    Study site: Primary Care Centre of Hospital Universiti
    Kebangsaan Malaysia (HUKM) and Batu 9 Health Clinic Hulu Langat,
    Matched MeSH terms: Thrombocytopenia/diagnosis*
  5. Hassan Y, Awaisu A, Aziz NA, Aziz NH, Ismail O
    J Clin Pharm Ther, 2007 Dec;32(6):535-44.
    PMID: 18021330
    To highlight therapeutic controversies, and present a critical review of the most recent evidence on the management of heparin-induced thrombocytopenia (HIT).
    Matched MeSH terms: Thrombocytopenia/chemically induced*; Thrombocytopenia/diagnosis; Thrombocytopenia/drug therapy
  6. Cheong BM
    Med J Malaysia, 2008 Mar;63(1):77-8.
    PMID: 18935745 MyJurnal
    Typhoid fever being a systemic infection can present in a multitude of ways, involving various systems. Here we describe a case of typhoid fever presenting with acute cerebellar ataxia and marked thrombocytopenia. This atypical presentation is not common in typhoid fever and can lead to misdiagnosis as well as a delay in the initiation of appropriate therapy. Prompt clinical improvement and the return of platelet counts to normal were noted after the patient was started on IV Ceftriaxone.
    Matched MeSH terms: Thrombocytopenia/etiology*
  7. Hassan Y, Awaisu A, Al-Meman AA, Aziz NA
    Malays J Med Sci, 2008 Apr;15(2):3-13.
    PMID: 22589618
    Our objectives were to discuss a general overview on the description and recognition of heparin-induced thrombocytopenia (HIT) and present a critical review of the traditional and most recent advances in its pharmacotherapy. Computerized searches were done on MEDLINE and Iowa Drug Information Service (IDIS) databases from June 2001 until June 2007 and from May 2005 until May 2007, respectively. Search terms used included 'heparin-induced thrombocytopenia', 'heparin-associated thrombocytopenia', therapeutics, HIT, HAT. We largely selected publications within the timeframe above, but did not exclude commonly referenced and highly regarded older publications. The commonly referenced published articles were obtained through manual searches derived from bibliographic citations and retrievals from the authors' personal files. Pertinent literatures (89 key articles) that were thought to have substantially contributed new information to the therapeutics of HIT within the last 6 years were identified, reviewed and presented. The following limits were used for the MEDLINE and IDIS searches: 'human', drug therapy', 'review', 'meta-analysis', 'clinical trial', and case reports. The therapeutics of HIT is rapidly evolving and needs to consider an evidence - based approach. It is imperative that practitioners be aware of the associated risk and be up-to-date with the current advances in the management of this fatal clinical condition.
    Matched MeSH terms: Thrombocytopenia
  8. Daneshvar C, Davis TM, Cox-Singh J, Rafa'ee MZ, Zakaria SK, Divis PC, et al.
    Clin Infect Dis, 2009 Sep 15;49(6):852-60.
    PMID: 19635025 DOI: 10.1086/605439
    BACKGROUND: Plasmodium knowlesi is increasingly recognized as a cause of human malaria in Southeast Asia but there are no detailed prospective clinical studies of naturally acquired infections.

    METHODS: In a systematic study of the presentation and course of patients with acute P. knowlesi infection, clinical and laboratory data were collected from previously untreated, nonpregnant adults admitted to the hospital with polymerase chain reaction-confirmed acute malaria at Kapit Hospital (Sarawak, Malaysia) from July 2006 through February 2008.

    RESULTS: Of 152 patients recruited, 107 (70%) had P. knowlesi infection, 24 (16%) had Plasmodium falciparum infection, and 21 (14%) had Plasmodium vivax. Patients with P. knowlesi infection presented with a nonspecific febrile illness, had a baseline median parasitemia value at hospital admission of 1387 parasites/microL (interquartile range, 6-222,570 parasites/microL), and all were thrombocytopenic at hospital admission or on the following day. Most (93.5%) of the patients with P. knowlesi infection had uncomplicated malaria that responded to chloroquine and primaquine treatment. Based on World Health Organization criteria for falciparum malaria, 7 patients with P. knowlesi infection (6.5%) had severe infections at hospital admission. The most frequent complication was respiratory distress, which was present at hospital admission in 4 patients and developed after admission in an additional 3 patients. P. knowlesi parasitemia at hospital admission was an independent determinant of respiratory distress, as were serum creatinine level, serum bilirubin, and platelet count at admission (p < .002 for each). Two patients with knowlesi malaria died, representing a case fatality rate of 1.8% (95% confidence interval, 0.2%-6.6%).

    CONCLUSIONS: Knowlesi malaria causes a wide spectrum of disease. Most cases are uncomplicated and respond promptly to treatment, but approximately 1 in 10 patients develop potentially fatal complications.

    Matched MeSH terms: Thrombocytopenia/etiology; Thrombocytopenia/parasitology
  9. Rusmawati, I., Asma Hanim, H., Naznin, M., Salman, M.S., Norlelawati, A.T.
    MyJurnal
    Introduction: Dengue is one of the commonest infections in Malaysia and it is a notifi able disease. Even
    though the diagnosis of classical dengue fever and dengue haemorrhagic fever can be recognized clinically, the diagnosis remains a challenge in areas where it could not be differentiated with other febrile illnesses. The aim of this study was to focus on the specifi c and consistent morphological features observed in blood fi lms of dengue infection. Materials and Methods: In all 400 cases of dengue infection serologically diagnosed in the Tengku Ampuan Afzan Hospital (HTAA) during May to October 2007, only a total of 27 cases had blood fi lms examined, and thus were included in this study. These blood fi lms were re-examined by two pathologists from HTAA. The full blood count parameters were also retrieved and studied. Results: We consistently found typical reactive lymphocytes [n= 23 (85%)] and thrombocytopenia [n=21, (77.8%)] in the cases. However, leucopenia was present only in 9 cases (33%). Conclusion: The presence of typical reactive lymphocyte is a consistent fi nding in dengue fever and thus could have a signifi cant role in supporting the diagnosis of dengue infection.
    Matched MeSH terms: Thrombocytopenia
  10. Asaad H. Ismail, Mohamad S. Jafaar
    MyJurnal
    The aim of this study is to design radon irradiation technique in the field of hematology for an invitro study. In addition, deposit of alpha particles into the human blood surface and its effects on the thrombocytopenia estimated using nuclear track detectors (NTDs). In this technique, amount of radon gas (2210±5.1Bq/m 3 ) collected in a tight PVC container with the appropriate engineering dimension using two sources of radium (5μCi). Blood samples (10 male and 10 female) and CR-39NTDs (40 pieces) are exposed to radon gas at various exposure time. Complete blood test and the computer scanning for each piece of CR-39NTDs before and after exposure has done. The results show that the present technique has a good efficiency (96%) to the invitro exposure of human blood. When the radon gas moved on the surface of blood sample, alpha tracks registered into CR-39NTDs. Thus, this technique improved that the comparative method to evaluate alpha particle density into exposure blood samples is an effective way; this depended on the geometry of design and the sensitivity of CR-39NTDs to track registration. Radon detector version 7 (RAD7) used to make a certain suitability of CR- 39NTDs. Amount of radon concentration losses during the exposure process, in the present work it was variable from 0.41% to 1.4%. Radon concentration effected on the thrombocytopenia; this depended on time of exposure and alpha energy loss into the blood and CR-39 through the atomic displacements. At the time of exposure of 10 minutes, rate of absorption dose was 2.255±0.11μSv (39%), and the platelet (PLT) cont reduced rapidly (high effected on reduce PLT, this makes thrombocytopenia.
    Matched MeSH terms: Thrombocytopenia
  11. Barber BE, William T, Jikal M, Jilip J, Dhararaj P, Menon J, et al.
    Emerg Infect Dis, 2011 May;17(5):814-20.
    PMID: 21529389 DOI: 10.3201/eid1705.101489
    Plasmodium knowlesi can cause severe malaria in adults; however, descriptions of clinical disease in children are lacking. We reviewed case records of children (age <15 years) with a malaria diagnosis at Kudat District Hospital, serving a largely deforested area of Sabah, Malaysia, during January-November 2009. Sixteen children with PCR-confirmed P. knowlesi monoinfection were compared with 14 children with P. falciparum monoinfection diagnosed by microscopy or PCR. Four children with knowlesi malaria had a hemoglobin level at admission of <10.0 g/dL (minimum lowest level 6.4 g/dL). Minimum level platelet counts were lower in knowlesi than in falciparum malaria (median 76,500/μL vs. 156,000/mL; p = 0.01). Most (81%) children with P. knowlesi malaria received chloroquine and primaquine; median parasite clearance time was 2 days (range 1-5 days). P. knowlesi is the most common cause of childhood malaria in Kudat. Although infection is generally uncomplicated, anemia is common and thrombocytopenia universal. Transmission dynamics in this region require additional investigation.
    Matched MeSH terms: Thrombocytopenia/etiology
  12. Franco L, Palacios G, Martinez JA, Vázquez A, Savji N, De Ory F, et al.
    PLoS Negl Trop Dis, 2011 Aug;5(8):e1251.
    PMID: 21829739 DOI: 10.1371/journal.pntd.0001251
    Dengue virus (DENV) circulates in human and sylvatic cycles. Sylvatic strains are both ecologically and evolutionarily distinct from endemic viruses. Although sylvatic dengue cycles occur in West African countries and Malaysia, only a few cases of mild human disease caused by sylvatic strains and one single case of dengue hemorrhagic fever in Malaysia have been reported. Here we report a case of dengue hemorrhagic fever (DHF) with thrombocytopenia (13000/µl), a raised hematocrit (32% above baseline) and mucosal bleeding in a 27-year-old male returning to Spain in November 2009 after visiting his home country Guinea Bissau. Sylvatic DENV-2 West African lineage was isolated from blood and sera. This is the first case of DHF associated with sylvatic DENV-2 in Africa and the second case worldwide of DHF caused by a sylvatic strain.
    Matched MeSH terms: Thrombocytopenia/virology
  13. Lim PP, Chong CP, Aziz NA
    Int J Clin Pharm, 2011 Dec;33(6):902-4.
    PMID: 21986835 DOI: 10.1007/s11096-011-9571-5
    CASE: Cefepime-induced thrombocytopenia is a rare adverse event (incidence <1.0%), based on data from clinical trials. However, there is limited post-marketing surveillance documentation on thrombocytopenia associated with cefepime. We describe a 45-year-old male who was admitted to the intensive care unit after allegedly being hit by a large metal bar in the right upper chest and shoulder. Rhabdomyolysis secondary to the trauma, pneumothorax, acute renal failure, and nosocomial sepsis were subsequently diagnosed. Four days after intravenous cefepime initiation, the patient developed thrombocytopenia with platelet count dropping from 102 × 10(3)/μL to 15 × 10(3)/μL. Cefepime was discontinued and the platelet count normalized to 140 × 10(3)/μL after 6 days. Use of the Naranjo adverse drug reaction probability scale indicated a possible relationship between the patient's thrombocytopenia and cefepime therapy.

    CONCLUSION: Although cefepime-induced thrombocytopenia is rare, clinicians should be alert to this potential adverse effect among critically ill patients.

    Matched MeSH terms: Thrombocytopenia/chemically induced*
  14. Hassan BA, Yusoff ZB, Hassali MA, Bin Othman S
    Asian Pac J Cancer Prev, 2011;12(11):2841-5.
    PMID: 22393951
    INTRODUCTION: Thrombocytopenia denotes abnormal decreases in platelet numbers and is a major detrimental side effect of the chemotherapy or cancer disease itself which cal lead to hemorrhage from vital organ. This is particularly a problem for the brain specifically within solid cancer patients and has a great negative effect on cancer patients quality of life (QOL). It ranges from mild bleeding from small blood vessels to severe bleeding from large blood vessels. The present study was conducted to evaluate the effectiveness of treatment guidelines for thrombocytopenia among solid cancer patients in Penang hospital and to find associations between these treatments and thrombocytopenia onset and severity and to suggest changes in the guidelines.

    METHODS: This retrospective observational study, conducted in a government hospital on Penang island included 341 cancer patients with thrombocytopenia who were admitted in the period between 2003 to 2009. The main statistical tests used were Chi-square test and Logistic regression test. The level of significance was set at P < 0.05.

    RESULTS: Of the total of 341, 21 (6.2%) showed thrombocytopenia before receiving chemotherapy and the remaining 320 (93.8%) after chemotherapy. The majority suffered from moderate thrombocytopenia (n=172; 53.8%), followed by mild a (n=97; 30.3%) and finally severe (n=51; 15.9%). For treatment, chemotherapy was delayed/ reduced (n=223; 65.4%) or platelets were transfused (n=51; 34.6%). However, thrombocytopenia problems were only temporarily solved.

    CONCLUSION: Effectiveness of thrombocytopenia treatment guidelines was found to be insufficient. It is advisable that thrombopoietin be used as a cornerstone even for patients who suffer from moderate thrombocytopenia and platelets transfusion should be used just for emergency cases when thrombocytopenia leads to a critical situation.

    Matched MeSH terms: Thrombocytopenia/complications; Thrombocytopenia/drug therapy*; Thrombocytopenia/pathology; Thrombocytopenia/therapy*
  15. Tan LH, Lum LC, Omar SF, Kan FK
    J Clin Virol, 2012 Sep;55(1):79-82.
    PMID: 22789140 DOI: 10.1016/j.jcv.2012.06.005
    Hemophagocytic syndrome is a potentially fatal disorder. It is being increasingly reported but remained under-recognized in dengue. Most reported cases were in association with plasma leakage and shock but multi-organ impairment was also observed. We describe the time-lines of 6 cases of confirmed dengue with varying severities of hemophagocytosis. All had persistent fever, cytopenia and elevated transaminases with markedly elevated ferritin levels during and beyond the plasma leakage phase. Acute renal failure and central nervous system manifestation were observed in two patients. Morphological hemophagocytosis was demonstrated in three patients. All survivors showed clinical and biochemical resolution of hemophagocytosis indicating its transient nature. Persistence of fever and cytopenia together with multi-organ dysfunction, out of proportion to and beyond the plasma leakage phase should prompt clinicians to consider this phenomenon.
    Matched MeSH terms: Thrombocytopenia/blood; Thrombocytopenia/virology
  16. Azira NM, Zairi NZ, Amry AR, Zeehaida M
    Trop Biomed, 2012 Sep;29(3):398-404.
    PMID: 23018503 MyJurnal
    Plasmodium knowlesi is a simian malaria parasite and is recently recognized as the fifth malaria parasite infecting humans. Manifestation of the infection may resemble other infection particularly dengue fever leading to inappropriate management and delay in treatment. We reported three cases of naturally acquired P. knowlesi in Hospital Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia. Clinical manifestations were quite similar in those cases. Microscopically, the diagnosis might be challenging. These cases were confirmed by polymerase chain reaction method which serves as a gold standard.
    Matched MeSH terms: Thrombocytopenia/diagnosis*; Thrombocytopenia/drug therapy; Thrombocytopenia/parasitology
  17. Usman AS, Mustaffa R, Ramli N, Diggi SA
    Asian J Transfus Sci, 2013 Jan;7(1):84-5.
    PMID: 23559775 DOI: 10.4103/0973-6247.106750
    OBJECTIVE: Maternal allo-antibody production is stimulated when fetal red blood cells are positive for an antigen absent on the mother's red cells. The maternal IgG antibodies produced will pass through the placenta and attack fetal red cells carrying the corresponding antigen. Allo-immune hemolytic disease of the fetus and newborn caused by anti-E rarely occurs.

    CASE SUMMARY: We report two cases of anti-E hemolytic diseases in neonates. One of the neonates had severe hemolysis presenting with severe anemia, thrombocytopenia, and conjugated hyperbilirubinemia, while the other had moderate anemia and unconjugated hyperbilrubinemia. Although both the neonates were treated by phototherapy and intravenous immunoglobulin, one of them received double volume exchange transfusion.

    CONCLUSION: There appeared to be an increase in the occurrence of hemolytic disease of the fetus and newborn caused by Rh antibodies other than anti-D. In this case report, both patients presented with anemia and hyperbilirubinemia but were successfully treated, with a favorable outcome.

    Matched MeSH terms: Thrombocytopenia
  18. Antinori S, Galimberti L, Milazzo L, Corbellino M
    Acta Trop, 2013 Feb;125(2):191-201.
    PMID: 23088834 DOI: 10.1016/j.actatropica.2012.10.008
    Plasmodium knowlesi was initially identified in the 30s as a natural Plasmodium of Macaca fascicularis monkey also capable of experimentally infecting humans. It gained a relative notoriety in the mid-30s as an alternative to Plasmodium vivax in the treatment of the general paralysis of the insane (neurosyphilis). In 1965 the first natural human infection was described in a US military surveyor coming back from the Pahang jungle of the Malaysian peninsula. P. knowlesi was again brought to the attention of the medical community when in 2004, Balbir Singh and his co-workers reported that about 58% of malaria cases observed in the Kapit district of the Malaysian Borneo were actually caused by P. knowlesi. In the following years several reports showed that P. knowlesi is much more widespread than initially thought with cases reported across Southeast Asia. This infection should also be considered in the differential diagnosis of any febrile travellers coming back from a recent travel to forested areas of Southeast Asia. P. knowlesi can cause severe malaria with a rate of 6-9% and with a case fatality rate of 3%. Respiratory distress, acute renal failure, shock and hyperbilirubinemia are the most frequently observed complications of severe P. knowlesi malaria. Chloroquine is considered the treatment of choice of uncomplicated malaria caused by P. knowlesi.
    Matched MeSH terms: Thrombocytopenia/parasitology; Thrombocytopenia/pathology
  19. Hanafiah M, Shahizon AM, Low SF, Shahrina MH
    BMJ Case Rep, 2013 Jul 05;2013.
    PMID: 23833091 DOI: 10.1136/bcr-2013-010163
    A 35-year-old woman with background of liver cirrhosis and portal hypertension secondary to chronic hepatitis C presented with complication of hypersplenism and thrombocytopenia. She developed severe menorrhagia requiring multiple blood transfusions. In addition, her interferon therapy was withheld owing to the underlying thrombocytopenia. Partial splenic embolisation was performed, which improved her platelet counts. Subsequently, the menorrhagia was resolved and her interferon therapy was restarted.
    Matched MeSH terms: Thrombocytopenia/etiology*
Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links