MyMedR

Fulltext Combined ultrasound and IVU for the management of childhood Urolithiasis: a case report

Fathinul Fikri, A.S., Abdul Jalil Nordin

Pertanika Journal of Science & Technology, 2012;20(2):327-330.

MyJurnal

The incidence of ureteric calculus as a cause for severe abdominal pain in children is mounting, especiallyin the tropical country. The course of illness may be non-specific but a swift detection via non-invasiveimaging modalities singly or in combination may avert unnecessary radiation hazard and futile surgery ina young child. In this paper, we discussed a case of an 11 year-old boy who was presented with a suddenonset of the right side severe abdominal colic whose a bedside ultrasound was positive for hydronephrosisfor which localisation of stone was further confirmed via a low dose limited intravenous urography (IVU).It is important to note that data available on the value of a combined ultrasound and the limited IVU inan emergency setting when urolithiais is being suspected in children with abdominal pain are particularlyscarce. Hence, this case documented the potential value of a combined ultrasound and a limited IVUstudy as a unique combined armamentarium used in a suspected childhood urolithiasis in the tropics.

Matched MeSH terms: Ureteral Calculi

Fulltext Giant Preputial Calculus: The First Reported Case in Malaysia

Chong TH, Asyraf MZ, Hayati F, Azizan N, Sahid NA, Ting JRS, et al.

Case Rep Surg, 2018;2018:4606259.

PMID: 30319829 DOI: 10.1155/2018/4606259

Preputial calculus is a relative surgical rarity. It usually happens in elderly men with poor hygiene and uncircumcised penis complicated with phimosis. In the paediatric group, it is usually secondary to phimosis and other urologic and/or neurologic anomalies. Surgical treatment is the mainstay of treatment. Herein, we report a 27-year-old gentleman with preputial stone presented with obstructive uropathy and was successfully treated with surgical intervention. To the best of our knowledge, this is the first reported case of the largest preputial stone in Malaysia.

Matched MeSH terms: Calculi

Notes of a case of multiple calculi removed from the prostate

Balhatchet WA

Malayan Medical Journal, 1935;10:156-8.

Matched MeSH terms: Urinary Bladder Calculi

Fulltext Mucinous adenocarcinoma of the renal pelvis associated with lithiasis and chronic gout

Kaur G, Naik VR, Rahman MNG

Singapore Med J, 2004 Mar;45(3):125-6.

PMID: 15029415

Diffusely-infiltrating mucinous adenocarcinoma of the renal pelvis associated with lithiasis and chronic gout is reported in a 61-year-old Malay man. The patient underwent left nephrectomy and vesiculo-lithotomy. This tumour is postulated to arise in response to chronic irritation of the urothelium.

Matched MeSH terms: Kidney Calculi/etiology*; Ureteral Calculi/etiology*

Uterine inversion with massive uterovaginal prolapse and multiple bladder stones

Naidu A, Nusee Z, Tayib S

J Obstet Gynaecol Res, 2011 Jun;37(6):633-5.

PMID: 21349130 DOI: 10.1111/j.1447-0756.2010.01401.x

A non-puerperal uterine inversion in advanced uterovaginal prolapse is a rare occurrence. Even more unusual is the presence of bladder calculi in these two conditions, which has not been documented before. We report a case of acute urinary retention secondary to severe uterovaginal prolapse associated with uterine inversion and multiple bladder calculi.

Matched MeSH terms: Urinary Bladder Calculi/complications*; Urinary Bladder Calculi/physiopathology

Fulltext Bilateral stones and renal failure

Suleiman AB, Awang H, Proehoeman F

Med J Malaysia, 1981 Mar;36(1):14-6.

PMID: 7321931

The clinical presentation of patients with bilateral stones is discussed. The majority of patients presenting to the Nephrology Unit were in renal failure. Aggressive medical treatment allowed
diagnostic procedures and definitive surgery to be performed in uraemic patients. Most patients presenting in uraemia benefitted from treatment.
Study Site: Urology Unit, General Hospital, Kuala Lumpur, Malaysia

Matched MeSH terms: Kidney Calculi/complications*; Kidney Calculi/therapy

Fulltext Outflow obstruction and bladder stones in Kelantan

McAll G, Lim KG, Edward R

Med J Malaysia, 1989 Mar;44(1):52-7.

PMID: 2626113

Bladder stones in men are thought to be almost exclusively due to outflow obstruction. We studied the incidence of operations for urinary outflow obstruction and bladder stone to establish the relationship between these two conditions in Kelantan. In only 48 (31%) of 154 men undergoing removal of bladder stones was a procedure for outflow obstruction performed. Thus the remaining 69% had no clinical obstruction to account for their stones. Bladder stones were more common in prostatectomy patients than expected (42/193: 22%). We suggest that other causes may be important in the aetiology of bladder stones in Kelantan.

Matched MeSH terms: Urinary Bladder Calculi/etiology*; Urinary Bladder Calculi/surgery

Urinary stones in Malaysia--its incidence and management

Sreenevasan G

Med J Malaysia, 1990 Jun;45(2):92-112.

PMID: 2152025

The life of Lord Moynihan is briefly reviewed. Incidence of stones in Peninsular Malaysia appears to show the same trend as in other industrialised countries. Management of urinary calculi both prior to and after the introduction of ESWL in a personal series is discussed. More than 90% of urinary stones are now treated by ESWL threatening the place of surgery in Urology. The pattern of incorporating renal transplantation into the urological training programme as practised in the Institute of Urology and Nephrology in Malaysia is suggested as a way to assure a place for surgery in Urology.

Matched MeSH terms: Kidney Calculi/epidemiology; Kidney Calculi/therapy

Fulltext Incidence of urinary stones in the various states of mainland Malaysia

Sreenevasan G

Med J Malaysia, 1981 Sep;36(3):142-7.

PMID: 7329370

A study into the incidence of urinary calculi over a 15-year period from 1962-1976 in the states of mainland Malaysia is presented. Figures from the Ministry of Health Returns are the only source for such information. The incidence from the various states over each five year period from 1962-1972 is tabulated and its significance especially, the pattern of incidence, and its relation to industrialisation is discussed. Malaysia is beginning to show the same pattern of incidence in the upper and lower urinary tract as that of other industrialised countries. A plea is made for the establishment of a central register at the Institute of Urology and Nephrology to carry out a national survey of urinary calculi so that a study into the epidemiology, and if possible, preventive aspects of urolithiasis can be undertaken.

Matched MeSH terms: Urinary Calculi/etiology; Urinary Calculi/epidemiology*

Midstream urine culture and sensitivity test is a poor predictor of infected urine proximal to the obstructing ureteral stone or infected stones: a prospective clinical study

Mariappan P, Loong CW

J Urol, 2004 Jun;171(6 Pt 1):2142-5.

PMID: 15126773

PURPOSE: This prospective study was performed to determine if midstream urine (MSU) culture and sensitivity (C&S) alone could adequately predict infected urine proximal to the obstructing ureteral stone or the infected stones. Can pelvic urine C&S predict infected stones?

MATERIALS AND METHODS: A prospective clinical study was performed on all patients undergoing ureterorenoscopy and lithotripsy for ureteral stones with obstruction between December 1, 2000 and January 31, 2002. We obtained MSU, renal pelvic urine and fragmented stones for culture and sensitivity. An analysis of the data was performed to assess statistical association.

RESULTS: A total of 73 patients who fulfilled the criteria were recruited. Of these patients 25 (34.3%) had positive stone culture, 43 (58.9%) had positive pelvic urine and 21 (28.8%) patients had positive MSU C&S. Stone and pelvic C&S were positive simultaneously in 17 (23.3%) cases, MSU and stone C&S were positive in 8 (10.9%) cases, whereas pelvic and MSU C&S were positive in 13 (16.4%) cases (p = 0.03). MSU C&S had a sensitivity of 30.2% and specificity of 73% to detect pelvic urine C&S positivity. MSU C&S had a low positive predictive value and negative predictive value (NPV) in relation to infected pelvic urine (positive predictive value = 0.62, NPV = 0.42). Pelvic urine C&S had a NPV of 0.73 in detecting noninfected stones.

CONCLUSIONS: The results of this study suggest that in obstructive uropathy secondary to a stone MSU C&S is a poor predictor of infected urine proximal to the obstruction and infected stones.

Matched MeSH terms: Ureteral Calculi/complications; Ureteral Calculi/microbiology*

Fulltext Retrograde intrarenal surgery for renal stones smaller than 2 cm

Ho CC, Hafidzul J, Praveen S, Goh EH, Bong JJ, Lee BC, et al.

Singapore Med J, 2010 Jun;51(6):512-5.

PMID: 20658113

Extracorporeal shock wave lithotripsy (ESWL) is accepted as the gold standard treatment for renal stones that are smaller than 2 cm. Recently, retrograde intrarenal surgery (RIRS) has been introduced as another form of treatment. We report our experience in dealing with renal stones smaller than 2 cm using RIRS as the primary treatment and following failed ESWL.

Matched MeSH terms: Kidney Calculi/pathology; Kidney Calculi/surgery*

Fulltext Urinary erythrocyte morphology as a diagnostic aid in haematuria

Ahmad G, Segasothy M, Morad Z

Singapore Med J, 1993 Dec;34(6):486-8.

PMID: 8153706

The value of urinary erythrocyte morphology in diagnosing glomerular and nonglomerular haematuria was studied using phase contrast microscopy in 105 patients with significant haematuria. Fifty-eight (93.6%) out of 62 patients with glomerulonephritis had dysmorphic erythrocytes and 40 (93.1%) out of the 43 patients with nonglomerular disease had isomorphic erythrocytes in the urine. A mixed picture of glomerular and nonglomerular haematuria was seen in 5 patients. The sensitivity was 93.6%, the specificity was 97.7% and the positive predictive value was 98.3% for glomerulonephritis in patients with dysmorphic haematuria. The positive predictive value for a nonglomerular source of bleeding was 96.7% with isomorphic haematuria. It is concluded that phase contrast microscopic examination of erythrocytes in urine is a simple, inexpensive and noninvasive technique that reliably distinguishes between glomerular and nonglomerular bleeding in patients.

Matched MeSH terms: Kidney Calculi/diagnosis; Kidney Calculi/urine

Qualification and application of an ELISA for the determination of Tamm Horsfall protein (THP) in human urine and its use for screening of kidney stone disease

Lau WH, Leong WS, Ismail Z, Gam LH

Int J Biol Sci, 2008 Aug 04;4(4):215-22.

PMID: 18695745

Kidney stone disease affects 1 - 20% of the general population. At present, the diagnosis of a stone is done using radiography method when noticeable symptoms appeared. We developed a non-invasive quantitative assay for urinary THP, namely ELISA; whereby our previous study and other reports had shown the usefulness of THP as biomarker for kidney stone disease. Since urine is biological fluid that is easily obtainable, this method could be used as a screening assay for kidney stone prior to confirmation with radiography. The ELISA gave assay linearity r(2) > 0.999 within the range of 109 ng/mL to 945 ng/mL THP. Assay precisions were < 4% (C.V.) for repeatability and < 5% (C.V.) for reproducibility. Assay accuracy range from 97.7% to 101.2% at the various THP concentrations tested. Assay specificity and sensitivity were 80% and 86%, respectively. The cut-off points at P < 0.05 were 37.0 and 41.2 mug/mL for male and female, respectively. The assay is cost effective and rapid whereby the cost for assaying each urine sample in duplicate is approximately USD0.35 and within 5 hours, 37 samples can be assayed alongside full range of standards and 3 QC samples in each plate. Furthermore, sample preparation is relatively easy where urine sample was diluted 10 times in TEA buffer. The usability of the ELISA method for diagnosis of kidney stone disease is evaluated with 117 healthy subjects and 58 stone formers.

Matched MeSH terms: Kidney Calculi/diagnosis*; Kidney Calculi/urine*

Clinico-radiologic-pathologic conference. Abnormal findings on chest radiographs of an asymptomatic patient

Staples CA, Brown MJ, Bai TR, Chan NH

Can Assoc Radiol J, 1996 Apr;47(2):136-9.

PMID: 8612087

Matched MeSH terms: Calculi/ethnology; Calculi/pathology

Twenty-four hour and spot urine metabolic evaluations: correlations versus agreements

Hong YH, Dublin N, Razack AH, Mohd MA, Husain R

Urology, 2010 Jun;75(6):1294-8.

PMID: 19914693 DOI: 10.1016/j.urology.2009.08.061

OBJECTIVES: To investigate the correlations and agreements between the solute/creatinine ratios from the 24-hour and early morning spot urine samples for metabolic evaluation in stone-formers given the various pitfalls with the 24-hour urinary metabolic evaluation in stone-formers.
METHODS: 30 urinary stone-formers out of an initial 62 recruited provided a complete 24-hour urine and early morning spot urine samples for metabolic evaluation. Pearson correlation and Bland and Altman Test were used to assess the correlations and agreements.
RESULTS: Significant correlations were established between the 24-hour urinary solute excretions and the corresponding early morning spot urine solute/creatinine ratios for calcium, magnesium, urate, potassium, oxalate, citrate, and the Differential Gibb's free energy value of calcium oxalate DG(CaOx) values. However, all these solute/creatinine measurements between the 24-hour and early morning spot urine samples were judged to be not within the acceptable limits based on the estimated "limit of agreement" by the Bland and Altman Test of Agreement. Diurnal circadian rhythm and postprandial excretion surge are thought to be responsible for the disagreements.
CONCLUSIONS: Thus, the early morning spot urine is not suitable to be used interchangeably to replace the 24-hour urine collection in the evaluation of urinary metabolic abnormalities in stone-formers. A good correlation does not translate to an agreement between the 2 measurements.

Matched MeSH terms: Urinary Calculi/diagnosis; Urinary Calculi/urine*

Proteomics and detection of uromodulin in first-time renal calculi patients and recurrent renal calculi patients

Wai-Hoe L, Wing-Seng L, Ismail Z, Lay-Harn G

Appl Biochem Biotechnol, 2009 Oct;159(1):221-32.

PMID: 19145410 DOI: 10.1007/s12010-008-8503-x

Renal calculi disease or known as kidney stone disease is the most common urological disorder in both men and women, although it is more prevalent in men. The lifetime chance for an individual to develop renal calculi is approximately 10% whereas the risk of recurrence in a 10-year period is 74%. Therefore, a diagnostic tool for screening or detecting renal calculi is greatly needed. In this study, we analyze urinary protein profiles from patients with renal calculi for the first time (RC), healthy subjects (HS), and patients with recurrent renal calculi (RRC) to identify a biomarker for detecting the disease. Urinary proteins were isolated by salt precipitation and the proteins resolved by SDS-PAGE. Target proteins were analyzed with LC/MS/MS. Thirty-two proteins were identified from healthy subjects and patients. Uromodulin was the most abundant urinary protein in HS but was a very faint band if detected at all from those that formed renal calculi for the first time (p < 0.05). Yet the excreted levels of urinary uromodulin in RRC were similar to those of the HS suggesting that uromodulin is a reliable biomarker for only RC. In addition, a few immunoglobulins that were commonly found in the urine of both RC and RRC, which include Ig alpha heavy chain 1, Ig gamma-2 c region, Ig gamma-3 heavy chain disease protein, Ig heavy chain variable region, Ig heavy constant region gamma 4, and Ig heavy chain. Ig heavy chain Fab frag and antibody a5b7 chain B may serve as potential biomarkers for renal calculi disease.

Matched MeSH terms: Kidney Calculi/diagnosis*; Kidney Calculi/urine*

Fulltext Pneumatic ureterolithotripsy in paediatric and adolescent patients: a ten-year experience at the Hospital Universiti Sains Malaysia

Hussein NS, Gohar MR

Singapore Med J, 2011 Jan;52(1):42-6.

PMID: 21298240

Two to three percent of stone disease cases occur in the paediatric age group. It is common in some parts of the world, such as in Turkey, India and Thailand. More than 50 percent of stones in children are still managed through open surgery. Ureteroscopic intervention for children remains a challenging treatment option. However, in contemporary urology practice, this mode of intervention is becoming more common. In this retrospective study, we reviewed our experiences with ureteroscopy and pneumatic lithotripsy in the paediatric and adolescent age group.

Matched MeSH terms: Ureteral Calculi/surgery*; Ureteral Calculi/therapy

Laser-induced breakdown spectroscopy-Raman: An effective complementary approach to analyze renal-calculi

Muhammed Shameem KM, Chawla A, Mallya M, Barik BK, Unnikrishnan VK, Kartha VB, et al.

J Biophotonics, 2018 06;11(6):e201700271.

PMID: 29411942 DOI: 10.1002/jbio.201700271

Presence of renal-calculi (kidney stones) in human urethra is being increasingly diagnosed over the last decade and is considered as one of the most painful urological disorders. Accurate analysis of such stones plays a vital role in the evaluation of urolithiasis patients and in turn helps the clinicians toward exact etiologies. Two highly complementary laser-based analytical techniques; laser-induced breakdown spectroscopy (LIBS) and micro-Raman spectroscopy have been used to identify the chemical composition of different types of renal-calculi. LIBS explores elemental characteristics while Raman spectroscopy provides molecular details of the sample. This complete information on the sample composition might help clinicians to identify the key aspects of the formation of kidney stones, hence assist in therapeutic management and to prevent recurrence. The complementarity of both techniques has been emphasized and discussed. LIBS spectra of different types of stones suggest the probable composition of it by virtue of the major, minor and trace elements detected from the sample. However, it failed to differentiate the crystalline form of different hydrates of calcium oxalate stone. This lacuna was overcome by the use of Raman spectroscopy and these results are compared with conventional chemical analysis.

Matched MeSH terms: Kidney Calculi

MRI Brain Classification Using the Quantum Entropy LBP and Deep-Learning-Based Features

Hasan AM, Jalab HA, Ibrahim RW, Meziane F, Al-Shamasneh AR, Obaiys SJ

Entropy (Basel), 2020 Sep 15;22(9).

PMID: 33286802 DOI: 10.3390/e22091033

Brain tumor detection at early stages can increase the chances of the patient's recovery after treatment. In the last decade, we have noticed a substantial development in the medical imaging technologies, and they are now becoming an integral part in the diagnosis and treatment processes. In this study, we generalize the concept of entropy difference defined in terms of Marsaglia formula (usually used to describe two different figures, statues, etc.) by using the quantum calculus. Then we employ the result to extend the local binary patterns (LBP) to get the quantum entropy LBP (QELBP). The proposed study consists of two approaches of features extractions of MRI brain scans, namely, the QELBP and the deep learning DL features. The classification of MRI brain scan is improved by exploiting the excellent performance of the QELBP-DL feature extraction of the brain in MRI brain scans. The combining all of the extracted features increase the classification accuracy of long short-term memory network when using it as the brain tumor classifier. The maximum accuracy achieved for classifying a dataset comprising 154 MRI brain scan is 98.80%. The experimental results demonstrate that combining the extracted features improves the performance of MRI brain tumor classification.

Matched MeSH terms: Calculi

Fulltext Studies on Leaf Venation in Selected Taxa of the Genus Ficus L. (Moraceae) in Peninsular Malaysia

Badron UH, Talip N, Mohamad AL, Affenddi AE, Juhari AA

Trop Life Sci Res, 2014 Dec;25(2):111-25.

PMID: 27073603 MyJurnal

A study on the variation of leaf venation patterns was conducted on 21 taxa of the genus Ficus in Peninsular Malaysia. The results showed the existence of eight leaf venation patterns based on veinlets, the ultimate marginal and areolar venation. The majority of species, such as F. annulata, F. benghalensis, F. benjamina, F. deltoidea var. angustifolia, F. deltoidea var. kunstleri, F. depressa, F. elastica, F. hispida, F. microcarpa, F. religiosa, F. tinctoria, F. ucinata and F. vasculosa, show tri-veinlets. The others exhibit the following: bi-veinlets in F. aurata and F. heteropleura; uni-veinlets in F. lepicarpa, F. schwarzii and F. superba; and simple veinlets in F. aurantiacea and F. fulva. F. sagittata presents no veinlets for areolar venation. The presence of tracheid or swollen veins at the centre of the lamina and the presence of cystolith cells and trichomes are common anatomical characteristics that could assist in group classification of the studied species. Variations in leaf venation patterns are not only valuable in identifying a taxon group, but can also be used to differentiate between species in the genus Ficus.

Matched MeSH terms: Urinary Bladder Calculi

Displaying publications 41 - 60 of 92 in total