Displaying publications 21 - 40 of 53 in total

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  1. Mallhi TH, Khan YH, Khan AH, Mahmood Q, Khalid SH, Saleem M
    J Coll Physicians Surg Pak, 2018 Jun;28(6):460-465.
    PMID: 29848424 DOI: 10.29271/jcpsp.2018.06.460
    Hot flushes during menopause are distressing for women and result in poor quality of life. Purpose of the current review was to evaluate the available treatment modalities that should be utilised for the management of hot flushes. Menopause refers to last menses of women life and can be declared after amenorrhea of 12 months. Vasomotor symptoms including hot flushes and night sweats are common after menopause, affecting almost 50 - 85% women older than 45 years. The mean increment in core body and skin temperature is 0.5°C and 0.25 - 3°C during a hot flush attack. Low level of estrogen during menopause and its association in triggering episodes of hot flushes, is still under debate. The most accepted hypothesis is a narrowing of the thermoneutral zone (TNZ) triggered by estrogen fluctuations. Although, hormone replacement therapy (HRT) remains the standard treatment for the alleviation of such symptoms, incidence of life threatening side effects restrained medical professionals from its use. Complications associated with the use of HRT can be avoided by appropriate evaluation of patients before initiating therapy. Several guidelines have also recommended HRT (estrogen and progesterone) to be safe for up to a period of seven years. Both hormonal and non-hormonal treatments are used for the management of hot flushes. Since hot flushes are the least appreciated and neglected complication of menopause, current review provides detailed information on its background, pathophysiology and management, and emphasises the need of its treatment.
  2. Mallhi TH, Khan YH, Adnan AS
    Am J Trop Med Hyg, 2020 Dec;103(6):2164-2167.
    PMID: 33124548 DOI: 10.4269/ajtmh.20-0794
    Despite myriad improvements in the care of COVID-19 patients, atypical manifestations are least appreciated during the current pandemic. Because COVID-19 is primarily manifesting as an acute respiratory illness with interstitial and alveolar pneumonia, the possibility of viral invasions into the other organs cannot be disregarded. Acute kidney injury (AKI) has been associated with various viral infections including dengue, chikungunya, Zika, and HIV. The prevalence and risks of AKI during the course of COVID-19 have been described in few studies. However, the existing literature demonstrate great disparity across findings amid variations in methodology and population. This article underscores the propensity of AKI among COVID-19 patients, limitations of the exiting evidence, and importance of timely identification during the case management. The prevalence of AKI is variable across the studies ranging from 4.7% to 81%. Evidence suggest old age, comorbidities, ventilator support, use of vasopressors, black race, severe infection, and elevated levels of baseline serum creatinine and d-dimers are independent risk factors of COVID-19 associated with AKI. COVID-19 patients with AKI also showed unsatisfactory renal recovery and higher mortality rate as compared with patients without AKI. These findings underscore that AKI frequently occurs during the course of COVID-19 infection and requires early stratification and management.
  3. Mallhi TH, Khan AH, Sarriff A, Adnan AS, Khan YH
    BMJ Open, 2017 Jul 10;7(7):e016805.
    PMID: 28698348 DOI: 10.1136/bmjopen-2017-016805
    OBJECTIVES: Dengue imposes substantial economic, societal and personal burden in terms of hospital stay, morbidity and mortality. Early identification of dengue cases with high propensity of increased hospital stay and death could be of value in isolating patients in need of early interventions. The current study was aimed to determine the significant factors associated with dengue-related prolonged hospitalisation and death.

    DESIGN: Cross-sectional retrospective study.

    SETTING: Tertiary care teaching hospital.

    PARTICIPANTS: Patients with confirmed dengue diagnosis were stratified into two categories on the basis of prolonged hospitalisation (≤3 days and >3 days) and mortality (fatal cases and non-fatal cases). Clinico-laboratory characteristics between these categories were compared by using appropriate statistical methods.

    RESULTS: Of 667 patients enrolled, 328 (49.2%) had prolonged hospitalisation. The mean hospital stay was 4.88±2.74 days. Multivariate analysis showed that dengue haemorrhagic fever (OR 2.3), elevated alkaline phosphatase (ALP) (OR 2.3), prolonged prothrombin time (PT) (OR 1.7), activated partial thromboplastin time (aPTT) (OR 1.9) and multiple-organ dysfunctions (OR 2.1) were independently associated with prolonged hospitalisation. Overall case fatality rate was 1.1%. Factors associated with dengue mortality were age >40 years (p=0.004), secondary infection (p=0.040), comorbidities (p<0.05), acute kidney injury (p<0.001), prolonged PT (p=0.022), multiple-organ dysfunctions (p<0.001), haematocrit >20% (p=0.001), rhabdomyolosis (p<0.001) and respiratory failure (p=0.007). Approximately half of the fatal cases in our study had prolonged hospital stay of greater than three days.

    CONCLUSIONS: The results underscore the high proportion of dengue patients with prolonged hospital stay. Early identification of factors relating to prolonged hospitalisation and death will have obvious advantages in terms of appropriate decisions about treatment and management in high dependency units.

    Study site: Hospital Universiti Sains Malaysia (HUSM), Kelantan
  4. Mallhi TH, Khan YH, Tanveer N, Bukhsh A, Khan AH, Aftab RA, et al.
    PeerJ, 2018;6:e5481.
    PMID: 30186686 DOI: 10.7717/peerj.5481
    Background: The World Health Organization (WHO) declares Chikungunya (CHIK) infection to be endemic in South Asia. Despite its first outbreak in Pakistan, no documented evidence exists which reveals the knowledge or awareness of healthcare students and workers (HCSW) regarding CHIK, its spread, symptoms, treatment and prevention. Since CHIK is an emergent infection in Pakistan, poor disease knowledge may result in a significant delay in diagnosis and treatment. The current study was aimed to evaluate the awareness and knowledge of CHIK among HCSW.

    Methods: A cross-sectional study was conducted among HCSW from teaching institutes and hospitals in seven provinces of Pakistan. We collected information on socio-demographic characteristics of the participants and their knowledge by using a 30-item questionnaire. The cumulative knowledge score (CKS) was calculated by correct answers with maximum score of 22. The relationship between demographics and knowledge score was evaluated by using appropriate statistical methods.

    Results: There were 563 respondents; mean age 25.2 ± 5.9 years with female preponderance (62.5%). Of these, 319 (56.7%) were aware of CHIK infection before administering the survey. The average knowledge score was 12.8 ± 4.1 (% knowledge score: 58.2%). Only 31% respondents had good disease knowledge while others had fair (36.4%) and poor (32.6%) knowledge. Out of five knowledge domains, domain III (vector, disease spread and transmission) and V (prevention and treatment) scored lowest among all i.e. percent score 44.5% and 54.1%, respectively. We found that socio-demographic characteristics had no influence on knowledge score of the study participants.

    Conclusion: Approximately one-half of participants were not aware of CHIK infection and those who were aware had insufficient disease knowledge. Findings of the current study underscore the dire need of educational interventions not only for health care workers but also for students, irrespective to the discipline of study.

  5. Mallhi TH, Khan YH, Khan AH, Tanveer N, Khan OH, Aftab RA
    Front Public Health, 2017;5:261.
    PMID: 29034228 DOI: 10.3389/fpubh.2017.00261
  6. Mallhi TH, Khan AH, Adnan AS, Sarriff A, Khan YH, Gan SH
    PLoS One, 2018;13(2):e0192510.
    PMID: 29481564 DOI: 10.1371/journal.pone.0192510
    BACKGROUND: Despite myriad improvements in the care of dengue patients, acute kidney injury (AKI) remained least appreciated intricacy of dengue infection. Exiting literature does not provide any information on renal outcomes among dengue patients surviving an episode of AKI.

    METHODS: Dengue patients who developed AKI were followed up for post-discharge period of three months and renal recovery was assessed by using recovery criteria based on different thresholds of serum creatinine (SCr) and estimated glomerular filtration rates (eGFR).

    RESULTS: Out of the 526 dengue participants, AKI was developed in 72 (13.7%) patients. Renal recovery was assessed among AKI survivors (n = 71). The use of less (±50% recovery to baseline) to more (±5% recovery to baseline) stringent definitions of renal recovery yielded recovery rates from 88.9% to 2.8% by SCr and 94.4% to 5.6% by eGFR, as renal function biomarkers. At the end of study, eight patients had AKI with AKIN-II (n = 7) and AKIN-III (n = 1). Approximately 50% patients (n = 36/71) with AKI had eGFR primitive to CKD stage 2, while 18.3% (n = 13/71) and 4.2% (n = 3/71) patients had eGFR corresponding to advanced stages of CKD (stage 3 & 4). Factors such as renal insufficiencies at hospital discharge, multiple organ involvements, advance age, female gender and diabetes mellitus were associated with poor renal outcomes.

    CONCLUSIONS: We conclude that dengue patients with AKI portend unsatisfactory short-term renal outcomes and deserve a careful and longer follow-up, especially under nephrology care.

  7. Mallhi TH, Khan YH, Khan AH, Tanveer N, Qadir MI
    New Microbes New Infect, 2017 Sep;19:13-14.
    PMID: 28663798 DOI: 10.1016/j.nmni.2017.05.008
    Despite explicit warning from the National Institute of Health, Pakistan experienced its first chikungunya outbreak in the metropolis of Karachi. We underscore the attention of health authorities and healthcare professionals towards contributing factors associated with this outbreak and the measures required to combat this viral disease.
  8. Mallhi TH, Salman M, Khan YH, Khan FU, Butt MH, Ung COL, et al.
    Front Pediatr, 2023;11:1298691.
    PMID: 38078334 DOI: 10.3389/fped.2023.1298691
  9. Mallhi TH, Khan AH, Adnan AS, Sarriff A, Khan YH, Jummaat F
    PLoS One, 2015;10(9):e0138465.
    PMID: 26421839 DOI: 10.1371/journal.pone.0138465
    BACKGROUND: Dengue induced acute kidney injury (AKI) imposes heavy burden of illness in terms of morbidity and mortality. A retrospective study was conducted to investigate incidence, characteristics, risk factors and clinical outcomes of AKI among dengue patients.

    METHODOLOGY: A total 667 dengue patients (2008-2013) were retrospectively evaluated and were stratified into AKI and non-AKI groups by using AKIN criteria. Two groups were compared by using appropriate statistical methods.

    RESULTS: There were 95 patients (14.2%) who had AKI, with AKIN-I, AKIN-II and AKIN-III in 76.8%, 16.8% and 6.4% patients, respectively. Significant differences (P<0.05) in demographics and clinico-laboratory characteristics were observed between patients with and without AKI. Presence of dengue hemorrhagic fever [OR (95% CI): 8.0 (3.64–17.59), P<0.001],rhabdomyolysis [OR (95% CI): 7.9 (3.04–20.49)], multiple organ dysfunction OR (95% CI):17.9 (9.14–35.12), P<0.001], diabetes mellitus [OR (95% CI): 4.7 (1.12–19.86), P = 0.034], late hospitalization [OR (95% CI): 2.1 (1.12–19.86), P = 0.033] and use of nephrotoxic drugs [OR(95% CI): 2.9 (1.12–19.86), P = 0.006] were associated with AKI. Longer hospital stay (>3days) was also observed among AKI patients (OR = 1.3, P = 0.044) [corrected].Additionally, 48.4% AKI patients had renal insufficiencies at discharge that were signicantly associated with severe dengue, secondary infection and diabetes mellitus. Overall mortality was 1.2% and all fatal cases had AKI.

    CONCLUSIONS: The incidence of AKI is high at 14.2% among dengue patients, and those with AKI portended significant morbidity, mortality, longer hospital stay and poor renal outcomes. Our findings suggest that AKI in dengue is likely to increase healthcare burden that underscores the need of clinicians' alertness to this highly morbid and potentially fatal complication for optimal prevention and management.

  10. Khan YH, Sarriff A, Adnan AS, Khan AH, Mallhi TH, Jummaat F
    Nephrology (Carlton), 2017 Jan;22(1):25-34.
    PMID: 26718476 DOI: 10.1111/nep.12713
    AIM: Despite increase global prevalence of End stage renal disease (ESRD) and subsequent need for renal replacement therapy (RRT), relatively little is known about disease progression and prognosis of earlier stages of CKD. Current study was conducted to examine rate of CKD progression, predictors of ESRD and death.

    METHODS: A total 621 patients with estimated glomerular filtration rate (eGFR) of 15-59ml/min/1.73m(2) (CKD stage 3 & 4) were selected and followed up for 10 years or until ESRD or death, whichever occurred first. Subjects who did not meet inclusion criteria were excluded (n=1474).

    RESULTS: Annual cumulative decline in eGFR was 3.01±0.40 ml/min/1.73m(2) . Overall disease progression was observed in 60% patients while 18% died. Among patients with CKD stage 3, 21% progressed to stage 4, 10% to stage 5ND (non-dialysis) and 31% to RRT while mortality was observed in 16% patients. On the other hand, 8% patients with CKD stage 4 progressed to stage 5ND, 31% to RRT and mortality was observed in 24% cases. Patients with CVD, higher systolic blood pressure, elevated phosphate levels, heavy proteinuria, microscopic hematuria and use of diuretics were more likely to develop ESRD. Advancing age, low eGFR, low systolic blood pressure, low hemoglobin and baseline diabetes were found to be significant predictors of mortality while being female reduced risk of mortality.

    CONCLUSION: Our data suggest that, in this CKD cohort, patients were more likely to develop ESRD than death. Prime importance should be given to mild forms of CKD to retard and even reverse CKD progression.

  11. Khan YH, Mallhi TH, Sarriff A, Khan AH
    Springerplus, 2013;2:463.
    PMID: 24083110 DOI: 10.1186/2193-1801-2-463
    OBJECTIVES: The objective of the current study is to analyze different approaches of pharmacists and general practitioners towards availability and use of osteoporosis prescreening tools and to find out reasons that explain non utilization of such tools in clinical practice.
    SETTINGS: Among General practitioners and Community pharmacists in Pulau Penang, Malaysia.
    METHODOLOGY: An explorative cross sectional study was carried out using convenience sampling approach. A pre-validated self- administered questionnaire was used to carry out the study. A total of 170 healthcare professionals participated in study.
    MAIN OUTCOME: Evaluation of awareness, use and opinions of healthcare professionals regarding osteoporosis prescreening tools.
    RESULTS: Response rate of study was 56%. The mean age of the participants was 39.00 + 7.89 years. Less than one third of participants were familiar with term prescreening tools or Clinical decision rules. The only osteoporosis prescreening tool that was recognized and used by majority of participants was FRAX. Participants agreed that low level of awareness regarding availability of prescreening tools poses hindrance in utilization of such tools in clinical practice. Majority of participants showed willingness to gain information and use such tools in future.
    CONCLUSIONS: The results of our study demonstrate an urgent need of implementation of osteoporosis prescreening tools educational and awareness programs among healthcare professionals.
  12. Khan YH, Sarriff A, Adnan AS, Khan AH, Mallhi TH
    Ther Apher Dial, 2016 Oct;20(5):453-461.
    PMID: 27151394 DOI: 10.1111/1744-9987.12406
    Hypertension is prevalent in 75-80% of hemodialysis patients and remains the most controversial prognostic marker in end stage kidney disease patients. In contrast to the general population where systolic blood pressure of ≤120 mm Hg is considered normal, a debate remains regarding the ideal target blood pressure in hemodialysis patients. Using the PUBMED and EMBASE databases, the research studies that evaluated the relationship between blood pressure measurements and mortality in hemodialysis patients were searched. Thirteen studies were identified from different regions of the world. Five studies reported low predialysis systolic blood pressure as a prognostic marker of mortality. Other studies showed varying results and reported postdialysis systolic blood pressure as well as ambulatory blood pressure as better predictors of mortality and emphasized their optimized control. One study in this review concluded that there is no direct relationship between mortality and blood pressure if the patients are on anti-hypertensive medications. The observed all-cause mortality varied from 12% to 36%, whereas the cardiovascular mortality varied from 16% to 60%. On the basis of studies included in the current review, a low predialysis systolic blood pressure (<120 mm Hg) is shown to be a widely accepted prognostic marker of mortality while ambulatory blood pressure best predicts CV mortality. Therefore, we recommend that apart from routine BP (pre, post and intradialysis) monitoring in centers, assessment of ambulatory BP must be mandatory for all patients to reduce CV mortality in hemodialysis patients.
  13. Khan YH, Sarriff A, Adnan AS, Khan AH, Malhi TH, Jummaat F
    J Coll Physicians Surg Pak, 2015 May;25(5):392.
    PMID: 26008675 DOI: 05.2015/JCPSP.392392
  14. Khan YH, Mallhi TH, Sarriff A, Khan AH, Tanveer N
    J Coll Physicians Surg Pak, 2018 Dec;28(12):960-966.
    PMID: 30501836 DOI: 10.29271/jcpsp.2018.12.960
    Chronic kidney disease (CKD) is an asymptomatic disease associated with high morbidity and life-threatening complications that lead to decreased life expectancy. Worldwide prevalence of CKD is escalating at an alarming rate. Large population-based representative surveys have been reported in Western countries to estimate the prevalence of the disease. However, there is paucity of data as far as developing nations are concerned. Asia is the world's largest continent accommodating maximum number of under-developed and developing countries with an unclear picture of prevalence of CKD. Current review attempts to give an insight to the prevalence of CKD in this region by combining population-based surveys. This review will assist in estimating the burden of CKD in Asia, so that appropriate control measures could be designed.
  15. Khan YH, Sarriff A, Adnan AS, Khan AH, Mallhi TH
    Clin Exp Nephrol, 2017 Jun;21(3):488-496.
    PMID: 27402286 DOI: 10.1007/s10157-016-1303-7
    INTRODUCTION: The relationship between hypertension and fluid overload in pre-dialysis CKD patients need to be elucidated. Current study aimed to find relationship between fluid overload and hypertension along with prescribed diuretic therapy using bioimpedance spectroscopy (BIS).

    METHODOLOGY: A prospective observational study was conducted by inviting pre-dialysis CKD patients. Fluid overload was assessed by BIS.

    RESULTS: A total of 312 CKD patients with mean eGFR 24.5 ± 11.2 ml/min/1.73 m2were enrolled. Based on OH value ≥7 %, 135 (43.3 %) patients were hypervolemic while euvolemia was observed in 177 (56.7 %) patients. Patients were categorized in different regions of hydration reference plot (HRP) generated by BIS i.e., 5.1 % in region-N (normal BP and fluid status), 20.5 % in region I (hypertensive with severe fluid overload), 29.5 % in region I-II (hypertensive with mild fluid overload), 22 % in region II (hypertensive with normohydration), 10.2 % in region III (underhydration with normal/low BP) and 12.5 % in region IV (normal BP with severe fluid overload). A total of 144 (46 %) patients received diuretics on basis of physician assessment of BP and edema. Maximum diuretics 100 (69.4 %) were prescribed in patients belonging to regions I and I-II of HRP. Interestingly, a similar number of diuretic prescriptions were observed in region II (13 %) and region IV (12 %). Surprisingly, 7 (4.9 %) of patients in region III who were neither hypervolemic nor hypertensive were also prescribed with diuretics.

    CONCLUSION: BIS can aid clinicians to categorize CKD patients on basis of their fluid status and provide individualized pharmacotherapy to manage hypertensive CKD patients.

  16. Khan YH, Sarriff A, Adnan AS, Khan AH, Mallhi TH
    Clin Exp Nephrol, 2017 Dec;21(6):1011-1023.
    PMID: 28271257 DOI: 10.1007/s10157-017-1397-6
    INTRODUCTION: Diuretic therapy has been the mainstay of treatment in chronic kidney disease (CKD) patients, primarily for hypertension and fluid overload. Apart from their beneficial effects, diuretic use is associated with adverse renal outcomes. The current study is aimed to determine the outcomes of diuretic therapy.
    METHODOLOGY: A prospective observational study was conducted by inviting pre-dialysis CKD patients. Fluid overload was assessed by Bioimpedance analysis (BIA).
    RESULTS: A total 312 patients (mean age 64.5 ± 6.43) were enrolled. Among 144 (46.1%) diuretic users, furosemide and hydrochlorothiazide (HCTZ) were prescribed in 69 (48%) and 39 (27%) patients, respectively, while 36 (25%) were prescribed with combination therapy (furosemide plus HCTZ). Changes in BP, fluid compartments, eGFR decline and progression to RRT were assessed over a follow-up period of 1 year. Maximum BP control was observed with combination therapy (-19.3 mmHg, p 
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