Displaying publications 81 - 100 of 2151 in total

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  1. Hasni H, Meah FA, Norlia A, Sharifah NA, Zulfiqar A
    Med J Malaysia, 2004 Oct;59(4):486-94.
    PMID: 15779581
    The aim of the study was: to obtain the profile of patients (with regards to age and family history of breast cancer) with a palpable breast mass. To determine the validity of ultrasound in the assessment of the palpable breast mass by determining the sensitivity, specificity, positive predictive value, negative predictive value and accuracy of ultrasound in distinguishing a malignant mass. To determine the most discriminating ultrasound characteristics for differentiating benign and malignant masses. Seventy patients who had fine needle aspiration cytology of a palpable breast mass were subjected to an ultrasound assessment of the mass. The ultrasound findings were classified as benign, indeterminate or malignant. These findings were then compared with either the cytology or histology results in cases that eventually had surgical excision. The age of the patients ranged from 15 to 66 years old The majority was in the third and fourth decades with an average age of 25 years. The 8 patients with a proven malignant breast mass were aged between 39 and 66 years old. They did not have any family history of breast cancer. Only 4 patients had a family history of breast carcinoma and all proved to have a benign breast lesion. Ultrasound had a sensitivity of 100%, specificity of 85.7%, positive predictive value of 50%, negative predictive value of 100% and accuracy of 87.5% for distinguishing a malignant mass. For benign masses: 93.7% had well-defined margins, 81.3% had homogenous internal echoes, 91.7% had depth-width ratio of less than 1.0 and 89% were compressible. For malignant masses: 87.5% had either ill-defined or irregular margins, 87.5% had inhomogenous internal echoes and mixed posterior echoes, and 100% were incompressible. The majority of patients with a palpable breast mass were aged below 40 years old. Most of the patients with a malignant breast mass were aged 40 years and older. Neither a positive nor a negative family history of breast cancer had any significance on outcome. Ultrasound had high sensitivity, specificity and accuracy in distinguishing a malignant mass. The most discriminating benign ultrasound characteristic was compressibility. The most discriminating malignant ultrasound characteristic was ill-defined and irregular margins.
    Matched MeSH terms: Prospective Studies
  2. Aizatul Isla, A.L., Wan Rahiza, W.M., Azrin, M.A., Thohiroh, A.R., Nurlia, Y., Nadia, M.N.
    MyJurnal
    The tranversus abdominis plane (TAP) block for postoperative analgesia after caesarean section may confer potential benefits comparable to that of intrathecal opioids. We compared postoperative analgesia, and the incidence of nausea, vomiting, pruritus and sedation between the TAP block and intrathecal morphine (ITM) in patients undergoing Caesarean section. This was a prospective, randomised clinical study. Fifty American Society of Anaesthesiologists physical status I or II patients, planned for elective caesarean section under spinal anaesthesia, were randomly allocated to the TAP group (patients receiving spinal anaesthesia with bilateral TAP block without ITM) or ITM group (patients receiving spinal anaesthesia with ITM without a TAP block). Assessment for pain, postoperative nausea and vomiting, pruritus and sedation was done upon arrival and discharge from recovery, and at 6, 12 and 24 hours, postoperatively in the post natal ward. Results were analysed using analysis of variance (ANOVA). There was no pain at rest in either groups. Both groups experienced pain on movement at the 12th (p = 0.6) and 24th hour (p = 0.4). None of the patients in the TAP group experienced nausea, vomiting, pruritus or sedation. However, these incidences were found to be significantly higher in the ITM group. Ultrasound guided TAP block provided comparable postoperative analgesia to ITM without the side effects of the latter.
    Matched MeSH terms: Prospective Studies
  3. Xin Tian C, Baharuddin KA, Shaik Farid AW, Andey R, Ridzuan MI, Siti-Azrin AH
    Med J Malaysia, 2020 11;75(6):635-641.
    PMID: 33219170
    INTRODUCTION: Plasma leakage is a major cause of morbidity and mortality in dengue fever. Few studies have shown the sensitivity of thoracoabdominal ultrasound in detecting plasma leakage in severe dengue, however its sensitivity in the early presentation of dengue fever without warning signs remains unknown. This study is aimed to determine the role of serial ultrasound in order to detect plasma leakage in dengue fever without warning signs.

    METHODS: This prospective cohort study was conducted at Hospital Universiti Sains Malaysia (USM) from 1st October 2016 to 30th November 2017. Serial bedside ultrasound procedures were performed for 83 patients who were diagnosed as having dengue fever without warning signs and were initially treated as outpatients. Ultrasonography evidence of plasma leakage either pleural effusion, thickened gallbladder wall, ascites or pericardial effusion were compared with clinical findings and laboratory parameters for plasma leakage.

    RESULTS: Of the 83 dengue patients, eventually 72.3% had dengue fever with warning signs and 6.0% had severe dengue fever. There were 38 patients who had subclinical plasma leakage at initial presentation, 84.2% and 7.9% of them then progressed to dengue fever with warning signs and severe dengue respectively. There was a minimal agreement between serial bedside ultrasound and haematocrit level in the detection of plasma leakage (observed kappa 0.135).

    CONCLUSIONS: Serial bedside ultrasound is an adjunct procedure to physical examination and may detect plasma leakage earlier compared to haemoconcentration. The early usage of serial ultrasound is of paramount importance in detecting dengue patients who are at risk of progressing to severe dengue.

    Matched MeSH terms: Prospective Studies
  4. Tan PC, Suguna S, Vallikkannu N, Hassan J
    Aust N Z J Obstet Gynaecol, 2006 Dec;46(6):505-9.
    PMID: 17116055
    To assess the relationship of ultrasound assessment for amniotic fluid, fetal weight, cervical length, cervical funneling and clinical factors on the risk of Caesarean delivery after labour induction at term.
    Matched MeSH terms: Prospective Studies
  5. Kurien M, Teo R, Zainuddin K, Azidin AM, Izaham A, Budiman M, et al.
    Clin Ter, 2021 Jul 05;172(4):278-283.
    PMID: 34247211 DOI: 10.7417/CT.2021.2332
    Objective: We compared sonoanatomy of the internal jugular vein (IJV) the high (HA), conventional (CA) and the medial oblique approach (MA) to identify the best approach and head position for IJV cannulation.

    Materials & Methods: Total of 45 volunteers aged 18-65 years were included in this study. The degree of overlap in percentage, depth of IJV from skin, antero-posterior (AP) and transverse diameters (TD) of IJV were measured in real time with ultrasound (US). Measurements were taken in the HA, CA and MA in neutral and 30° head rotation on both the right and left side of the neck.

    Results: The HA had lower percentage of overlap when compared to CA and MA in neutral and 30° head rotation (p= 0.002 to ≤0.001). The IJV was more shallow in the CA and MA. The AP and TD of the IJV were larger in the MA when compared to HA (p=<0.001) and CA (p =0.026 to < 0.001) and the right IJV has a larger AP and TD in all approaches.

    Discussion: The HA had the least percentage of overlap compared to CA and MA, therefore the risk of accidental ICA puncture can be reduced. The apparent overlap seen in MA may not reflect the actual scenario because of the way the US beam cuts the vessel. The AP and TD of IJV were significantly increased in the MA, which would ease CVC.

    Conclusion: We conclude and recommend the medial oblique probe position with 30° head rotation provides optimal real time sonographic parameters for US guided IJV cannulation.

    Matched MeSH terms: Prospective Studies
  6. Lo TS, Tan YL, Wu PY, Cortes EF, Pue LB, Al-Kharabsheh A
    PMID: 25265496 DOI: 10.1016/j.ejogrb.2014.09.015
    To evaluate the ultrasound morphology and its clinical outcome among women who had undergone Miniarc™ vs Monarc™ in the treatment of stress urinary incontinence (SUI).
    Matched MeSH terms: Prospective Studies
  7. Khammas ASA, Mahmud R
    J Med Ultrasound, 2020 10 01;29(1):26-31.
    PMID: 34084713 DOI: 10.4103/JMU.JMU_53_20
    Background: Ultrasonographic (USG) measurements of the liver length, gallbladder wall thickness (GBWT), diameters of the inferior vena cava (IVC), portal vein (PV), and pancreas are valuable and reliable in diagnosis hepatobiliary and pancreas conditions. This study is aimed to determine the normal values of liver length, GBWT, AP diameters of the IVC and PV, AP diameter of the head and body of the pancreas.

    Methods: A prospective cross-sectional study was carried out in this study. A total of the 408 participants were randomly recruited using a systematic method. According to the USG reports, the subjects who had normal USG report for liver, biliary system, and pancreas were described as normals, whereas the subjects who had hepatobiliary diseases such as fatty liver, liver cysts, hemangioma, cirrhosis, gallbladder wall thickening, acute cholecystitis, gallstones, and polyps were recorded as abnormal subjects.

    Results: Of the 408 participants with a mean of 52.6 ± 8.4 years old. Of those, 294 (72.1%) participants were normal and 114 (27.9%) subjects were reported as abnormal. More than half of the study population was males, 52.9% versus 47.1% of females. There was a significant difference of liver length, head, and body of the pancreas between genders (P = 0.004, 0.002, and P < 0.001, respectively). Moreover, the pancreatic body only was significantly correlated with age (P = 0.026). There also was a significant difference of the liver length, head, and body of the pancreas between normal and abnormal subjects (P < 0.001, P = 0.007, and P < 0.001).

    Conclusion: Liver length, diameter of the head, and body of the pancreas were significantly associated with gender and hepatobiliary diseases. In addition, only the diameter of the body of the pancreas was significantly correlated with age.

    Matched MeSH terms: Prospective Studies
  8. Wu X, Sivakumar M, Lim SS, Wu T, Heng PC
    Ultrason Sonochem, 2024 Feb;103:106782.
    PMID: 38309050 DOI: 10.1016/j.ultsonch.2024.106782
    This study investigates a prospective and straightforward method for producing graphene material derived from biomass, examining the influence of plant cell composition and functions. The experimental outcomes highlight ultrasound's crucial role in synthesizing graphene material sourced from biomass. Ultrasound, a pivotal element in the experiment, significantly affects graphene production from biomass by working synergistically with the liquid components in the solvent system. Notably, the ethanol content reduces the solution's surface tension, facilitating the effective dispersion of biochar and graphene oxide sheets throughout the process. Simultaneously, the water content maintains the solution's polarity, enhancing the cavitation effect induced by ultrasound. Biomass-derived graphene is exfoliated utilizing an ultrasonic bath system (134.4 W, 40 kHz, 0.5 W/cm2) from biochar. The as-synthesized graphene oxide exhibits a structure comprising a few layers while remaining intact, featuring abundant functional groups. Interestingly, the resulting product displays nanopores with an approximate diameter of 100 nm. These nanopores are attributed to preserving specific cell structures, particularly those with specialized cell wall structures or secondary metabolite deposits from biomass resources. The study's findings shed light on the impact of cellular structure on synthesizing graphene material sourced from biomass, emphasizing the potential application of ultrasound as a promising approach in graphene production.
    Matched MeSH terms: Prospective Studies
  9. Muhammad R, Johann KF, Saladina JJ, Mohd Latar NH, Niza ASS
    Med J Malaysia, 2013 Jun;68(3):204-7.
    PMID: 23749007 MyJurnal
    Treatment for breast cancer has improved dramatically over the decades. Nevertheless, modified radical mastectomy with axillary dissection remains the standard treatment for most patients, especially those with big tumours. The conventional technology is to use diathermy to cut and coagulate blood vessels. The Ultracision dissector has been widely used in laparoscopic surgery and is documented to be safe and fast for cutting and coagulating tissue. The aim of this study is to compare ultracision to electrocautery, looking in terms of amount of post operative drainage, duration of drain days, seroma formation and other complications.
    Matched MeSH terms: Prospective Studies
  10. Dehghan M, Mente A, Rangarajan S, Mohan V, Swaminathan S, Avezum A, et al.
    Am J Clin Nutr, 2023 Jan;117(1):55-63.
    PMID: 36789944 DOI: 10.1016/j.ajcnut.2022.10.014
    BACKGROUND: Higher intake of ultra-processed foods (UPFs) has been associated with increased risk of CVD and mortality in observational studies from Western countries but data from non-Western countries are limited.

    OBJECTIVES: We aimed to assess the association between consumption of UPFs and risk of mortality and major CVD in a cohort from multiple world regions.

    DESIGN: This analysis includes 138,076 participants without a history of CVD between the ages of 35 and 70 y living on 5 continents, with a median follow-up of 10.2 y. We used country-specific validated food-frequency questionnaires to determine individuals' food intake. We classified foods and beverages based on the NOVA classification into UPFs. The primary outcome was total mortality (CV and non-CV mortality) and secondary outcomes were incident major cardiovascular events. We calculated hazard ratios using multivariable Cox frailty models and evaluated the association of UPFs with total mortality, CV mortality, non-CV mortality, and major CVD events.

    RESULTS: In this study, 9227 deaths and 7934 major cardiovascular events were recorded during the follow-up period. We found a diet high in UPFs (≥2 servings/d compared with 0 intake) was associated with higher risk of mortality (HR: 1.28; 95% CI: 1.15, 1.42; P-trend < 0.001), CV mortality (HR: 1.17; 95% CI: 0.98, 1.41; P-trend = 0.04), and non-CV mortality (HR: 1.32; 95% CI 1.17, 1.50; P-trend < 0.001). We did not find a significant association between UPF intake and risk of major CVD.

    CONCLUSIONS: A diet with a high intake of UPFs was associated with a higher risk of mortality in a diverse multinational study. Globally, limiting the consumption of UPFs should be encouraged.

    Matched MeSH terms: Prospective Studies
  11. Chandradevan M, Simoh S, Mediani A, Ismail NH, Ismail IS, Abas F
    PMID: 32047522 DOI: 10.1155/2020/3238561
    This study aimed to determine the total phenolic content, DPPH scavenging, α-glucosidase, and nitric oxide (NO) inhibition of Gynura procumbens and Cleome gynandra extracts obtained with five different ethanolic concentrations. The findings showed that the 100% ethanolic extract of G. procumbens had the highest phenolic content and the lowest IC50 values for DPPH scavenging and NO inhibition activity compared to the properties of the other extracts. For C. gynandra, the 20% and 100% ethanolic extracts had comparably high total phenolic contents, and the latter possessed the lowest IC50 value in the NO inhibition assay. In addition, the 20% ethanolic extract of C. gynandra had the lowest IC50 value in the DPPH scavenging assay. However, none of the extracts from either herb had the ability to inhibit α-glucosidase enzyme. Pearson correlation analysis indicated a strong relationship between the phenolic content and DPPH scavenging activity in both herb extracts. A moderately strong relationship was also observed between the phenolic content and NO inhibition in G. procumbens extracts and not in C. gynandra extracts. The UHPLC-ESI-Orbitrap-MS revealed major phenolics from the groups of hydroxycinnamic acids, hydroxybenzoic acids, and flavonoid derivatives from both herbs, which could be the key contributors to their bioactivities. Among the identified metabolites, 24 metabolites were tentatively assigned for the first time from both species of studied herbs. These two herbs could be recommended as prospective natural products with valuable medicinal properties.
    Matched MeSH terms: Prospective Studies
  12. Malik AS, Malik RH
    Med J Malaysia, 2001 Dec;56(4):478-90.
    PMID: 12014769
    A prospective study of 102 children with bacteriologically confirmed typhoid fever, admitted to Hospital Universiti Sains Malaysia over 5 years was conducted. The average age at presentation was 91.3 (range 6 - 159) months. Fever (900%), abdominal pain (56%) and diarrhoea (44%) were common symptoms. Findings included: hepatomegaly (85.3%), splenomegaly (27.5%), anaemia (31%), leukopenia (15%). thrombocytopenia (26%), positive Widal (62.5%) and Typhidot test (96%). Patients were treated with ampicillin (n = 54) or chloramphenicol (n = 49) and 1/3 developed complications like hepatitis (n = 19), bone marrow suppression (n = 8) and paralytic ileus (n = 7). A patient with splenomegaly, thrombocytopenia or leukopenia was at higher risk of developing complications.
    Matched MeSH terms: Prospective Studies
  13. Ahmad B, Md Zain AZ, Fatt QK
    Diabetes Metab Syndr, 2017 Dec;11 Suppl 2:S901-S906.
    PMID: 28709852 DOI: 10.1016/j.dsx.2017.07.013
    The aim of the study is to determine the impact of diabetes education on patients' glycaemic control. A prospective 18-month intervention study was conducted at four ambulatory diabetes centres. Poorly controlled type 2 diabetes patients attended an hour of structured diabetes education at their respective diabetes centres. A month post-intervention patients were contacted through telephone and followed up for 18 months. Anthropometric measurements and socio-demographic details were collected during the first visit. HbA1C blood test for each patient was taken at beginning and end of study. Patients' diabetes knowledge showed 80% obtained Excellent or Very Good score. The Telephone Contact (TC) retention rate was 75.52% at 18 months. There was a significant improvement (p=0.001) in patients' glycaemic control with a reduction in HbA1C of ≥1% from baseline. Diabetes education intervention contributed positively to significant glycaemic improvement and should be embedded within a structured diabetes care delivery system.
    Matched MeSH terms: Prospective Studies
  14. Huo Y, Lee SW, Sawhney JPS, Kim HS, Krittayaphong R, Pocock SJ, et al.
    Int J Cardiol, 2020 09 15;315:1-8.
    PMID: 32389764 DOI: 10.1016/j.ijcard.2020.05.022
    AIMS: Approximately half of cases of cardiovascular disease (CVD) worldwide occur in Asia, with acute coronary syndrome (ACS) a leading cause of mortality. Long-term ACS-related outcomes data in Asia are limited. This analysis examined 2-year ACS-related outcomes in patients enrolled in the EPICOR Asia study, and the association between patient characteristics and management on outcomes.

    METHODS: EPICOR Asia is a multinational, prospective, primary data collection study of real-world management of Asian patients with ACS. Overall, 12,922 eligible adults (hospitalized for ACS within 48 h of symptom onset and who survived to discharge) were enrolled from 219 centers in eight Asian countries. Patients were followed up post-discharge for 2 years and clinical outcomes recorded.

    RESULTS: Patients were of mean age 60 years and 76% were male. Diagnoses were STEMI (51.2%), NSTEMI (19.9%), and UA (28.9%). During follow-up, 5.2% of patients died; NSTEMI patients had the highest risk profile. Mortality rate (adjusted HR [95% CI]) was similar in NSTEMI (0.97 [0.81-1.17]) and lower in UA (0.52 [0.33-0.82]) vs STEMI. Similar trends (adjusted) were seen for the composite endpoint of death, myocardial infarction, or ischemic stroke, and bleeding rates did not differ significantly. For all three diagnoses, patients who were medically managed had a markedly elevated risk of both death and the composite endpoint.

    CONCLUSIONS: During 2-year follow-up, adjusted risks of mortality, the composite endpoint, and bleeding rates were similar in NSTEMI and STEMI patients. Outcomes risk was better for invasive management. Long-term management strategies in Asia need to be optimized.

    Matched MeSH terms: Prospective Studies
  15. Leow VM, Faizah MS, Mohd Sharifudin S, Letchumanan VP, Yang KF, Manisekar KS
    Med J Malaysia, 2014 Jun;69(3):129-32.
    PMID: 25326354 MyJurnal
    OBJECTIVE: Conventional laparoscopic cholecystectomy (LC) involves the use of four ports, but the number of ports has gradually been reduced to one for cosmetic reasons. however, single-incision LC is technically demanding, and there is a substantial learning curve associated with its successful application. The aim of this clinical study was to evaluate the safety and feasibility of a less demanding alternative LC technique with a faster learning curve.

    METHODS: This prospective descriptive study was performed from September 2009 to February 2011 at Sultanah Bahiyah hospital in Kedah, Malaysia. A total of 58 patients underwent two-incision threeport laparoscopic cholecystectomy (TILC), which was performed by the senior consultant hepato-pancreato-biliary surgeon and two hepato-pancreato-biliary trainees. Study end points included operative time, postoperative pain, length of hospital stay and early postoperative complications. The follow-up period was 4 weeks.

    RESULTS: The overall operative time taken was 44 ± 18 minutes. none of the patients had major complication or incisional hernia postoperatively. All but one of the patients were discharged within 24 h. nonsteroidal anti-inflammatory drugs were the main postoperative analgesic used.

    CONCLUSION: TILC is feasible and safe cholecystectomy technique.
    Matched MeSH terms: Prospective Studies
  16. Rohana J, Boo NY, Yong SC, Ong LC
    Med J Malaysia, 2005 Aug;60(3):338-44.
    PMID: 16379189 MyJurnal
    A quality assurance study was carried out prospectively in two phases at the Neonatal Intensive Care Unit (NICU) of Hospital Universiti Kebangsaan Malaysia. The objectives of the study were to determine the turn-around-time (TAT) of radiographs requested for infants undergoing intensive care treatment in the NICU and the effects of a standard operating procedure introduced based on initial findings of first phase of the study on subsequent TAT. The TAT was defined as the time taken for the radiograph to be ready for viewing after the attending doctor had requested for it to be done on an infant. During phase one of the study, none of the requested radiographs was ready to be viewed by the doctors within the standard TAT of 45 minutes. The problems identified were ward staffs delay in sending request forms to the radiology department, radiographers' delay in shooting and processing the films, and delay by NICU porter in collecting the processed films. Based on these findings, a standard operating procedure (SOP) was drawn up jointly by the staff of NICU and Department of Radiology. During phase two of the study conducted at one month after implementation of the SOP, there was a reduction of TAT by 50%. However, only 3 (4.3%) of the radiographs achieved the standard TAT. The main problems identified during phase two were delay in sending request forms and in collecting processed radiographs by the porter system. The dismal TAT of radiographs in NICU was related primarily to human behaviour. Besides continuous staff education, replacement of the porter system with electronic system may improve the TAT.
    Keywords: Turn-around time, radiographs, neonatal intensive care unit, standard operating procedure, Kuala Lumpur
    Matched MeSH terms: Prospective Studies
  17. Reddy SC, Das PK
    Malays J Pathol, 1996 Dec;18(2):113-20.
    PMID: 10879232
    A total of 89 histopathologically proven ocular tumours and tumour-like lesions treated in Hospital University Sains Malaysia, Kubang Kerian, Kelantan over a period of nine years were reviewed for their age distribution, site of lesion and histological type. The tumours were observed in all age groups with a maximum prevalence in the first decade. Twenty lesions were malignant and 69 were benign. The eyelid was the most frequent location (51%), followed by the conjunctiva (32%). Retinoblastoma was the most common malignant tumour (10 cases) and dermoid cyst was the most common tumour-like lesion (16 cases).
    Matched MeSH terms: Prospective Studies
  18. Lee HG, William T, Menon J, Ralph AP, Ooi EE, Hou Y, et al.
    BMC Infect Dis, 2016 06 16;16:296.
    PMID: 27306100 DOI: 10.1186/s12879-016-1640-x
    BACKGROUND: Central nervous system (CNS) infections are a significant contributor to morbidity and mortality globally. However, most published studies have been conducted in developed countries where the epidemiology and aetiology differ significantly from less developed areas. Additionally, there may be regional differences due to variation in the socio-economic levels, public health services and vaccination policies. Currently, no prospective studies have been conducted in Sabah, East Malaysia to define the epidemiology and aetiology of CNS infections. A better understanding of these is essential for the development of local guidelines for diagnosis and management.

    METHODS: We conducted a prospective observational cohort study in patients aged 12 years and older with suspected central nervous system infections at Queen Elizabeth Hospital, Kota Kinabalu, Sabah, Malaysia between February 2012 and March 2013. Cerebrospinal fluid was sent for microscopy, biochemistry, bacterial and mycobacterial cultures, Mycobacterium tuberculosis polymerase chain reaction (PCR), and multiplex and MassCode PCR for various viral and bacterial pathogens.

    RESULTS: A total of 84 patients with clinically suspected meningitis and encephalitis were enrolled. An aetiological agent was confirmed in 37/84 (44 %) of the patients. The most common diagnoses were tuberculous meningitis (TBM) (41/84, 48.8 %) and cryptococcal meningoencephalitis (14/84, 16.6 %). Mycobacterium tuberculosis was confirmed in 13/41 (31.7 %) clinically diagnosed TBM patients by cerebrospinal fluid PCR or culture. The acute case fatality rate during hospital admission was 16/84 (19 %) in all patients, 4/43 (9 %) in non-TBM, and 12/41 (29 %) in TBM patients respectively (p = 0.02).

    CONCLUSION: TBM is the most common cause of CNS infection in patients aged 12 years or older in Kota Kinabalu, Sabah, Malaysia and is associated with high mortality and morbidity. Further studies are required to improve the management and outcome of TBM.

    Matched MeSH terms: Prospective Studies
  19. Dhana A, Hamada Y, Kengne AP, Kerkhoff AD, Rangaka MX, Kredo T, et al.
    Lancet Infect Dis, 2022 Apr;22(4):507-518.
    PMID: 34800394 DOI: 10.1016/S1473-3099(21)00387-X
    BACKGROUND: The WHO-recommended tuberculosis screening and diagnostic algorithm in ambulatory people living with HIV is a four-symptom screen (known as the WHO-recommended four symptom screen [W4SS]) followed by a WHO-recommended molecular rapid diagnostic test (eg Xpert MTB/RIF [hereafter referred to as Xpert]) if W4SS is positive. To inform updated WHO guidelines, we aimed to assess the diagnostic accuracy of alternative screening tests and strategies for tuberculosis in this population.

    METHODS: In this systematic review and individual participant data meta-analysis, we updated a search of PubMed (MEDLINE), Embase, the Cochrane Library, and conference abstracts for publications from Jan 1, 2011, to March 12, 2018, done in a previous systematic review to include the period up to Aug 2, 2019. We screened the reference lists of identified pieces and contacted experts in the field. We included prospective cross-sectional, observational studies and randomised trials among adult and adolescent (age ≥10 years) ambulatory people living with HIV, irrespective of signs and symptoms of tuberculosis. We extracted study-level data using a standardised data extraction form, and we requested individual participant data from study authors. We aimed to compare the W4SS with alternative screening tests and strategies and the WHO-recommended algorithm (ie, W4SS followed by Xpert) with Xpert for all in terms of diagnostic accuracy (sensitivity and specificity), overall and in key subgroups (eg, by antiretroviral therapy [ART] status). The reference standard was culture. This study is registered with PROSPERO, CRD42020155895.

    FINDINGS: We identified 25 studies, and obtained data from 22 studies (including 15 666 participants; 4347 [27·7%] of 15 663 participants with data were on ART). W4SS sensitivity was 82% (95% CI 72-89) and specificity was 42% (29-57). C-reactive protein (≥10 mg/L) had similar sensitivity to (77% [61-88]), but higher specificity (74% [61-83]; n=3571) than, W4SS. Cough (lasting ≥2 weeks), haemoglobin (<10 g/dL), body-mass index (<18·5 kg/m2), and lymphadenopathy had high specificities (80-90%) but low sensitivities (29-43%). The WHO-recommended algorithm had a sensitivity of 58% (50-66) and a specificity of 99% (98-100); Xpert for all had a sensitivity of 68% (57-76) and a specificity of 99% (98-99). In the one study that assessed both, the sensitivity of sputum Xpert Ultra was higher than sputum Xpert (73% [62-81] vs 57% [47-67]) and specificities were similar (98% [96-98] vs 99% [98-100]). Among outpatients on ART (4309 [99·1%] of 4347 people on ART), W4SS sensitivity was 53% (35-71) and specificity was 71% (51-85). In this population, a parallel strategy (two tests done at the same time) of W4SS with any chest x-ray abnormality had higher sensitivity (89% [70-97]) and lower specificity (33% [17-54]; n=2670) than W4SS alone; at a tuberculosis prevalence of 5%, this strategy would require 379 more rapid diagnostic tests per 1000 people living with HIV than W4SS but detect 18 more tuberculosis cases. Among outpatients not on ART (11 160 [71·8%] of 15 541 outpatients), W4SS sensitivity was 85% (76-91) and specificity was 37% (25-51). C-reactive protein (≥10 mg/L) alone had a similar sensitivity to (83% [79-86]), but higher specificity (67% [60-73]; n=3187) than, W4SS and a sequential strategy (both test positive) of W4SS then C-reactive protein (≥5 mg/L) had a similar sensitivity to (84% [75-90]), but higher specificity than (64% [57-71]; n=3187), W4SS alone; at 10% tuberculosis prevalence, these strategies would require 272 and 244 fewer rapid diagnostic tests per 1000 people living with HIV than W4SS but miss two and one more tuberculosis cases, respectively.

    INTERPRETATION: C-reactive protein reduces the need for further rapid diagnostic tests without compromising sensitivity and has been included in the updated WHO tuberculosis screening guidelines. However, C-reactive protein data were scarce for outpatients on ART, necessitating future research regarding the utility of C-reactive protein in this group. Chest x-ray can be useful in outpatients on ART when combined with W4SS. The WHO-recommended algorithm has suboptimal sensitivity; Xpert for all offers slight sensitivity gains and would have major resource implications.

    FUNDING: World Health Organization.

    Matched MeSH terms: Prospective Studies
  20. 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.
    Matched MeSH terms: Prospective Studies
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