1.Epidemiology of snakebites from a general hospital in Singapore: a 5-year retrospective review (2004-2008).
Annals of the Academy of Medicine, Singapore 2010;39(8):640-647
INTRODUCTIONThis is a retrospective study on the epidemiology of snakebites that were presented to an emergency department (ED) between 2004 and 2008.
MATERIALS AND METHODSSnakebite cases were identified from International Classification of Diseases (ICD) code E905 and E906, as well as cases referred for eye injury from snake spit and records of antivenom use.
RESULTSFifty-two cases were identified: 13 patients witnessed the snake biting or spitting at them, 22 patients had fang marks and/or clinical features of envenomations and a snake was seen and the remaining 17 patients did not see any snake but had fang marks suggestive of snakebite. Most of the patients were young (mean age 33) and male (83%). The three most commonly identified snakes were cobras (7), pythons (4) and vipers (3). One third of cases occurred during work. Half of the bites were on the upper limbs and about half were on the lower limbs. One patient was spat in the eye by a cobra. Most of the patients (83%) arrived at the ED within 4 hours of the bite. Pain and swelling were the most common presentations. There were no significant systemic effects reported. Two patients had infection and 5 patients had elevated creatine kinase (>600U/L). Two thirds of the patients were admitted. One patient received antivenom therapy and 5 patients had some form of surgical intervention, of which 2 had residual disability. One patient had heparin instilled in the eye for eye injury from cobra spit.
CONCLUSIONSSnakebite infrequently presents to the ED. Most of the patients developed local effects that do well with supportive treatment.
Adolescent ; Adult ; Aged ; Animals ; Antivenins ; therapeutic use ; Elapidae ; Female ; Hospitals, General ; statistics & numerical data ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Saliva ; Singapore ; epidemiology ; Snake Bites ; drug therapy ; epidemiology ; Time Factors ; Treatment Outcome ; Young Adult
2. A rare cause of acute abdomen – Spontaneous rectus sheath hematoma
Hock Chin CHONG ; Feng Yih CHAI ; Yew Eng TAN ; Sophia Si Ling HENG ; Siti Asilah MOHD DESA
Asian Pacific Journal of Tropical Biomedicine 2016;6(10):892-895
Spontaneous rectus sheath hematoma (SRSH) is a rare entity that mimics acute abdomen. Rectus sheath hematoma is the accumulation of blood in rectus sheath due to muscle or epigastric vessel injury. However, SRSH without a trauma or anticoagulation is rare. It frequently mimics acute abdomen and it may lead to misdiagnosis and unnecessary laparotomy. In this article, we described two cases of SRSH with their diagnostic and therapeutic strategy. Both of our patients in report were neither consumed antiplatelet nor coagulopathy. They both had abdominal muscle straining before their symptoms presentation. We hypothesized that the SRSH may be induced by rectus muscle injury secondary to inappropriate straining or posture. To diagnose SRSH, clinical findings are important but radiologic imaging such as computed tomography, can be diagnostic. In expanding SRSH, percutaneous arterial embolization of epigastric artery is useful to secure the bleeding. If embolization is not feasible, surgical exploration hemostasis is curative. In non-expanding SRSH, it can be managed nonoperatively. SRSH is an important initial differential for acute abdomen. Radiologic imaging helps in diagnosis. Stable SRSH can be managed conservatively with good outcome.
3.Multimodality imaging of splenic sclerosing angiomatoid nodular transformation.
Hock Tai Gavin LIM ; Cher Heng TAN ; Li Tserng TEO ; Chi Shern Bernard HO
Singapore medical journal 2015;56(6):e96-9
Sclerosing angiomatoid nodular transformation (SANT) is an exceedingly rare, benign and proliferative vascular lesion that arises from the splenic red pulp. It is often an incidental finding on imaging. The diagnosis of SANT is confirmed via histopathological examination of the resected spleen. Herein, we present a case of SANT and describe its typical imaging characteristics. An asymptomatic 39-year-old man was found to have a 3.1 cm × 2.7 cm × 2.3 cm hypoechoic splenic lesion during abdominal ultrasonography, which was performed to investigate his elevated gamma-glutamyl transpeptidase and alanine transaminase levels. Contrast-enhanced computed tomography suggested a vascular splenic lesion, while magnetic resonance imaging demonstrated features consistent with SANT. In view of the increasing size of the lesion on follow-up imaging, the patient elected for splenectomy. Histopathological examination confirmed SANT, and the lesion was completely resected by laparoscopic splenectomy.
Adult
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Alanine Transaminase
;
blood
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Cell Proliferation
;
Contrast Media
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chemistry
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Disease Progression
;
Humans
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Image Processing, Computer-Assisted
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methods
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Incidental Findings
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Laparoscopy
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Magnetic Resonance Imaging
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Male
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Multimodal Imaging
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methods
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Spleen
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diagnostic imaging
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Splenectomy
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Splenic Diseases
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diagnostic imaging
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Tomography, X-Ray Computed
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Ultrasonography
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gamma-Glutamyltransferase
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blood
4.Herb-induced cardiotoxicity from accidental aconitine overdose.
Sujata SHETH ; Elaine Ching Ching TAN ; Hock Heng TAN ; Leslie TAY
Singapore medical journal 2015;56(7):e116-9
Patients who overdose on aconite can present with life-threatening ventricular arrhythmia. Aconite must be prepared and used with caution to avoid cardiotoxic effects that can be fatal. We herein describe a case of a patient who had an accidental aconite overdose but survived with no lasting effects. The patient had prepared Chinese herbal medication to treat his pain, which resulted in an accidental overdose of aconite with cardiotoxic and neurotoxic effects. The patient had ventricular tachycardia, bidirectional ventricular tachycardia and ventricular fibrillation. Following treatment with anti-arrhythmic medications, defibrillation and cardiopulmonary resuscitation, he made an uneventful recovery, with no further cardiac arrhythmias reported.
Aconitine
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poisoning
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Adult
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Anti-Arrhythmia Agents
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therapeutic use
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Cardiopulmonary Resuscitation
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Cardiotoxicity
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Drug Overdose
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Drugs, Chinese Herbal
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poisoning
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Electric Countershock
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Electrocardiography
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Humans
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Male
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Tachycardia
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chemically induced
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Tachycardia, Ventricular
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chemically induced
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Treatment Outcome
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Ventricular Fibrillation
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chemically induced
5.Can we omit systematic biopsies in patients undergoing MRI fusion-targeted prostate biopsies?
Jeffrey J LEOW ; Soon Hock KOH ; Marcus Wl CHOW ; Wayren LOKE ; Rolando SALADA ; Seok Kwan HONG ; Yuyi YEOW ; Chau Hung LEE ; Cher Heng TAN ; Teck Wei TAN
Asian Journal of Andrology 2023;25(1):43-49
Magnetic resonance imaging (MRI)-targeted prostate biopsy is the recommended investigation in men with suspicious lesion(s) on MRI. The role of concurrent systematic in addition to targeted biopsies is currently unclear. Using our prospectively maintained database, we identified men with at least one Prostate Imaging-Reporting and Data System (PI-RADS) ≥3 lesion who underwent targeted and/or systematic biopsies from May 2016 to May 2020. Clinically significant prostate cancer (csPCa) was defined as any Gleason grade group ≥2 cancer. Of 545 patients who underwent MRI fusion-targeted biopsy, 222 (40.7%) were biopsy naïve, 247 (45.3%) had previous prostate biopsy(s), and 76 (13.9%) had known prostate cancer undergoing active surveillance. Prostate cancer was more commonly found in biopsy-naïve men (63.5%) and those on active surveillance (68.4%) compared to those who had previous biopsies (35.2%; both P < 0.001). Systematic biopsies provided an incremental 10.4% detection of csPCa among biopsy-naïve patients, versus an incremental 2.4% among those who had prior negative biopsies. Multivariable regression found age (odds ratio [OR] = 1.03, P = 0.03), prostate-specific antigen (PSA) density ≥0.15 ng ml-2 (OR = 3.24, P < 0.001), prostate health index (PHI) ≥35 (OR = 2.43, P = 0.006), higher PI-RADS score (vs PI-RADS 3; OR = 4.59 for PI-RADS 4, and OR = 9.91 for PI-RADS 5; both P < 0.001) and target lesion volume-to-prostate volume ratio ≥0.10 (OR = 5.26, P = 0.013) were significantly associated with csPCa detection on targeted biopsy. In conclusion, for men undergoing MRI fusion-targeted prostate biopsies, systematic biopsies should not be omitted given its incremental value to targeted biopsies alone. The factors such as PSA density ≥0.15 ng ml-2, PHI ≥35, higher PI-RADS score, and target lesion volume-to-prostate volume ratio ≥0.10 can help identify men at higher risk of csPCa.
Male
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Humans
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Prostate/pathology*
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Prostatic Neoplasms/pathology*
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Prostate-Specific Antigen
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Magnetic Resonance Imaging/methods*
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Image-Guided Biopsy/methods*
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Retrospective Studies
6.A systematic review of the association of obesity with the outcomes of inflammatory rheumatic diseases.
Yi Xuan LEE ; Yu Heng KWAN ; Ka Keat LIM ; Chuen Seng TAN ; Nai Lee LUI ; Jie Kie PHANG ; Eng Hui CHEW ; Truls OSTBYE ; Julian THUMBOO ; Warren FONG
Singapore medical journal 2019;60(6):270-280
This was a systematic review of the literature on the association between obesity and the outcome of inflammatory rheumatic diseases. We conducted a literature search using PubMed®, Embase and PsycINFO®. Articles were classified into three categories based on the effects of obesity on the outcomes of inflammatory rheumatic diseases. The subject population, country, type of studies, number of patients, measurement of obesity and outcomes assessed were presented. Quality was appraised using Kmet et al's criteria. 4,331 articles were screened and 60 were relevant to the objective. Obesity had a negative, positive and neutral association with outcomes of inflammatory rheumatic diseases in 38 (63.3%) studies with 57,612 subjects, 11 (18.3%) studies with 3,866 subjects, and 11 (18.3%) studies with 3,834 subjects, respectively. In most studies, the disease population had been diagnosed with rheumatoid arthritis (RA). Tumour necrosis factor-α inhibitors were mostly associated with negative outcomes. More studies examining subjects outside Europe and North America and diseases other than RA are warranted.
7.Therapeutic temperature management (TTM): post-resuscitation care for adult cardiac arrest, with recommendations from the National TTM Workgroup.
Siew Hon Benjamin LEONG ; Enoch CHAN ; Benjamin Choon Heng HO ; Colin YEO ; Sennen LEW ; Duu Wen SEWA ; Shir Lynn LIM ; Chee Wan LEE ; Pow Li CHIA ; Tien Siang Eric LIM ; Eng Kiang LEE ; Marcus Eng Hock ONG
Singapore medical journal 2017;58(7):408-410
Therapeutic temperature management (TTM) was strongly recommended by the 2015 International Liaison Committee on Resuscitation as a component of post-resuscitation care. It has been known to be effective in improving the survival rate and neurologic functional outcome of patients after cardiac arrest. In an effort to increase local adoption of TTM as a standard of post-resuscitation care, this paper discusses and makes recommendations on the treatment for local providers.