Firdaus Hayati

Firdaus Hayati
Universiti Malaysia Sabah (UMS) | ums · Department of Surgery

MD (UMS), Doctor of General Surgery (UKM)

About

257
Publications
95,083
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718
Citations
Education
June 2012 - May 2017
June 2003 - May 2008
Universiti Malaysia Sabah (UMS)
Field of study
  • Medicine

Publications

Publications (257)
Article
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A 46-year gentleman presented with a left-sided lumbar region pain without fever or dysuria. He denied episodes of acute urinary retention. There was a hard mass at the distal urethra with normal laboratory blood tests. Computed tomography urogram revealed a concurrent left renal staghorn calculus and large distal urethral stone. The urethral stone...
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Purpose: To evaluate the expression of estrogen receptor (ER) beta and Ki67 in prostate cancer and look for their relationship. Materials and Methods: We analysed 101 cases of prostate adenocarcinoma from 100 patients, diagnosed from January 2011 to June 2015. Immunohistochemistry staining of ER-beta and Ki67 was analysed according to the pattern...
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Introduction: Colonoscopy is the gold standard to detect colorectal neoplasm. Narrow-band imaging (NBI) has a good diagnostic accuracy to differentiate between neoplastic and non-neoplastic colorectal lesions. This study explores the diagnostic validity of NBI colonoscopy as well as its associated factors related to neoplastic and non-neoplastic c...
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We present the case of a 16-year-old boy presented with two weeks episode of worsening lower abdominal pain. Clinically, there was a tender palpable mass on the suprapubic region. Ultrasonography showed an absent spleen at its usual area, instead might represent the suprapubic mass. An emergency laparotomy revealed a congested spleen in the pelvic...
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Background Pancreatic tuberculosis is a rare clinical entity. It represents a diagnostic challenge as the clinical presentation may mimic pancreatic malignancy. Case presentation A 66-year-old gentleman presented with an incidental finding of a pancreatic tail mass on routine ultrasonography of the abdomen whilst working up on chronic kidney disea...
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Introduction Desmoid tumours are rare benign tumours. The tumours may develop sporadically or they may be linked to familial adenomatous polyposis (FAP) in Gardner’s syndrome. Aim This article highlights a young lady with an intra-abdominal desmoid tumour that manifested as an acute abdomen and we discuss our management strategy. Case study A 24-...
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Goblet cell carcinoid (GCC) is an enigmatic and rare tumour involving the appendix almost exclusively. It is a rare, aggressive subtype of appendiceal tumours with neuroendocrine features, and controversy exists with regards to therapeutic strategy. We herein highlight a 56-year-old lady with GCC whom she presented initially with a typical presenta...
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Acute abdomen is a common surgical emergency, yet is challenging especially during the COVID-19 pandemic. This article highlights the challenging management of acute abdomen and issues on preoperative nasopharyngeal swab testing, aerosol-generating procedures and non-operative management. A 36-year-old gentleman presented with acute right iliac fos...
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Small cell neuroendocrine cancer of the bladder (SCNCB) is a rare tumor with highly aggressive characteristics and poor differentiation. It comprises less than 1% of bladder malignancy and usually diagnosed at an advanced stage. It is challenging to differentiate between SCNCB with other bladder tumors as they had a similar presentation. We present...
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Inflammatory bowel disease is an emerging gastrointestinal disease in Malaysia. One of its rare complications includes giant inflammatory polyposis (GIP). A 39-year-old woman presented with worsening per rectal mucous discharge, associated with blood, colicky abdominal pain, and weight loss. A series of endoscopies at another hospital did not provi...
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Introduction Breast cancer is the most common cancer among women and one of the major causes of mortality and morbidity worldwide. The aim of this study is to determine two-year cumulative recurrence rates and survival rates and their influential factors among women with breast cancer after surgical treatment. Methods The breast cancer registry wi...
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Background Giant ovarian cysts are rare in developed countries due to advanced achievements in medical diagnostics. However, in the midst of the coronavirus disease 2019 (COVID-19) pandemic, patients with non-COVID-19-related illnesses tend to delay their health-seeking attention; thus, they had presented late. Case presentation A 25-year-old sing...
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Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the alimentary canal and are postulated to have originated from the interstitial cells of Cajal. We present three patients with an age range from 43 to 63 years old diagnosed with GIST of the gastroesophageal junction (GEJ). All patients were noted to have submucosal...
Article
Intravascular tumour extension can occur in many different types of cancer. Those with the highest tendency include renal cell carcinoma, adrenal cortical carcinoma and hepatocellular carcinoma. Inferior vena cava (IVC) tumour thrombus in gynaecological malignancy is rarely reported. We present a report on a female patient with extensive IVC tumour...
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BACKGROUND: The respiratory tract often becomes the site of injury from occupational exposure. All construction sites generate high levels of dust, typically from concrete, silica, asbestos, cement, wood, and stone, sand, and therefore, the workers are exposed to this airborne dust and increased their risk of developing respiratory disorders. Limit...
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Inflammatory bowel disease is an emerging gastrointestinal disease in Malaysia. One of its rare complications includes giant inflammatory polyposis (GIP). A 39-year-old woman presented with worsening per rectal mucous discharge, associated with blood, colicky abdominal pain, and weight loss. A series of endoscopies at another hospital did not provi...
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Methicillin-resistant Staphylococcus aureus (MRSA) is a major nosocomial pathogen that causes severe morbidity, mortality and high medical expenses in many hospitals worldwide. The present study aimed to determine the prevalence of MRSA nosocomial infection, its associated factors, and its antimicrobial susceptibility pattern. This was a retrospect...
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Rectal foreign bodies often constitute an arduous diagnosis and perplexing management. A 72-year-old gentleman who is mentally sound was brought to the emergency department for severe epigastric pain of a 1-week duration. On examination, he was pyrexial and in sepsis. The abdomen was guarded. A digital rectal examination was normal. Erect chest rad...
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Endometriosis involving the bowel is a form of deep infiltrating endometriosis (DIE). The endometriotic lesions can infiltrate the bowel layers mimicking a malignancy. The majority of bowel involvement happens in the colon and rectum. We report our experience in surgically managing rectal endometriosis in two patients, one via a conservative approa...
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Background Colonic diverticulosis is often asymptomatic, but it can complicate bleeding, abscess and stricture. Pneumaturia and faecaluria are unexpected manifestations of colonic diverticulitis complicated by colovesical fistula formation. Case presentation This case report highlighted a 57-year-old man who presented with lower abdominal pain whi...
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Background: Colorectal cancer is a major public health problem with significant number of cases and death in the population. This study aimed to determine the 5-year overall survival rate and the prognostic factors for colorectal cancer patients in Sabah. Methods: This was a retrospective cohort study conducted using secondary data from Malaysia...
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AIM: The SARS-CoV-2 pandemic has provided a unique opportunity to explore the impact of surgical delays on cancer resectability. This study aimed to compare resectability for colorectal cancer patients undergoing delayed versus non-delayed surgery. METHODS: This was an international prospective cohort study of consecutive colorectal cancer patients...
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This innovative health intervention aimed to reduce stress among university students through interaction with music and developing awareness of the effect of music in stressful situations such as the current COVID-19 pandemic. The setting for this intervention was an online Instagram community with Universiti Malaysia Sabah (UMS) students as partic...
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Aim: The SARS-CoV-2 pandemic has provided a unique opportunity to explore the impact of surgical delays on cancer resectability. This study aimed to compare resectability for colorectal cancer patients undergoing delayed versus non-delayed surgery. Methods: This was an international prospective cohort study of consecutive colorectal cancer patients...
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Background Omental infarction (OI) is a rare cause of acute abdominal pain that is often missed out. Due to its non-specific presentation can mimic other commoner conditions such as acute appendicitis, acute diverticulitis, and tuberculosis abdomen. Case presentation We present a 42-year-old gentleman with trisomy 21 presenting right iliac fossa p...
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Background Primary signet-ring cell carcinoma (SRCC) of the prostate is a rare and aggressive subtype of prostate adenocarcinoma with a poor prognosis, with only approximately 60 cases reported worldwide. Case presentation A 62-year-old man presented with acute urinary retention and hematuria, after a year’s history of lower urinary tract symptoms...
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A primary endovascular approach is the mainstay of intervention for type C aortoiliac disease. When the femoral artery is unsuitable, upper extremity access can be critical in the setting of severe tortuosity or occlusive disease. The axillary artery represents alternative upper extremity access that may accommodate larger sheath sizes for therapeu...
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Pemphigoid gestationis (PG), also known as gestational pemphigoid, as it is specifically associated with a pregnancy event, is among the rare pregnancy-related dermatoses, characterised by the formation of autoantibodies against Bullous Pemphigoid antigens 180 and 230 (BP180 and BP230), causing significant damage to the basement membrane of the ski...
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Neuroendocrine tumor (NET) commonly occurs in the gastrointestinal tract, however primary NET of the liver is rare, especially during pregnancy. We present a 34-year-old pregnant woman gravida 3 para 2 at 16 weeks period of gestation with primary liver NET discovered incidentally during the antenatal check-up. She has no risk factors for hepatocell...
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Objectives: Japanese encephalitis ( JE) is one of the major mosquito-borne infectious diseases in the Western Pacific region, accounting for 20%–30% of mortality cases. The JE virus (JEV) seroprevalence fluctuations indicate that continuous research is important for prevention and control activities. By mapping JEV seroprevalence by age stratificat...
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Aim: The SARS-CoV-2 pandemic has provided a unique opportunity to explore the impact of surgical delays on cancer resectability. This study aimed to compare resectability for colorectal cancer patients undergoing delayed versus non-delayed surgery. Methods: International prospective cohort study of consecutive colorectal cancer patients with a d...
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Abdominal apoplexy, or idiopathic spontaneous intraperitoneal hemorrhage (ISIH), is a rare but often fatal condition resulting from a variety of disease processes affecting abdominal vasculature. A 30-year-old woman presented with acute abdominal pain and breathlessness and was in class II hypovolemic shock. She had a history of multiple episodes o...
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ABSTRACT Simple breast cysts are benign lesions diagnosed in premenopausal women commonly presenting with a palpable breast lump. They are however, extremely rare in males due to the absence of lobular tissue in the male breast. We report a case of a benign breast cyst in a 19-year-old male who presented with a left breast lump and nipple discharg...
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Globally, everyone has gone through an unusual and remarkable period during the COVID-19 pandemic. The pandemic has affected various sectors in the country and implicated society. Important services including the health care system, particularly in surgery, have raised challenges and issues that need to be sorted out. This action is prudent to just...
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Situs inversus totalis (SIT) develops as a result of the embryological developmental anomaly. Managing this condition surgically is challenging as the anatomy will be mirror-imaged. A 42-year-old male had metal shrapnel broken loose from a hammer-head metal piece and pierced into his upper abdomen. A computed tomography scan of the abdomen revealed...
Article
Impetigo herpetiformis (IH) is a pregnancy-specific dermatosis that is currently considered a form of generalised pustular psoriasis and mainly occurs in late pregnancy during the third trimester. IH presents as erythematous patches and pustules and might have systemic involvement. The disease may be associated with severe maternal, fetal, and neon...
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BACKGROUND Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract and mostly affect the stomach. The size of the tumors vary, ranging from 0.6 cm to 25.5 cm, with a median size of 6.8 cm. CASE REPORT We report a case of a giant GIST (25×18×8.5 cm) in an 83-year-old woman, which we believe is the...
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Members of the COVIDSurg Collaborative are co-authors of this study and are listed under the heading Collaborators. For details of role see Appendix S1. Dear Editor During the COVID-19 pandemic, multiple theories were proposed based on the observation that countries with an ongoing national Bacillus Calmette-Gué rin (BCG) immunization programme had...
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Background Intestinal obstruction is a common surgical emergency that is presented to the hospital with various aetiologies. Among all, mesenteric lipoma is one of the uncommon extraluminal causes of intestinal obstruction. In such conditions, bowel volvulus, compression or even adhesion are the underlying pathologies. Case presentation We report...
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Femoral hernia is rare and commonly presents with incarceration in emergency situations. From the literature review, there is no femoral hernia reported in chronic irreducible presentation. A 44-year-old female, who was planned for an elective hernia surgery for a chronic irreducible inguinal hernia, was discovered to have an irreducible femoral he...
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Letter to: Endometriosis of the rectosigmoid colon mimicking gastrointestinal stromal tumor
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An omental cyst is a rare intraabdominal pathology that can cause acute abdomen and intestinal obstruction among children. A 2-year-old boy presented with fever, bilious vomiting, abdomen distension and loose stool of acute onset. The chest and abdominal radiographs showed right pleural effusion and prominent small bowels with thickening walls resp...
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Background Hereditary leiomyomatosis-associated renal cell carcinoma (HLRCC) is rare with only 300 families reported to date worldwide. Despite highlighting renal malignancy, it is infamous for its cutaneous and leiomyomatosis component as the more common cause of presentation. This report is to highlight the rare presentation of HLRCC which occurs...
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Encounters between marine animals and humans can result in critical injury and fatal complications. We highlight a 20-y-old male who sustained a penetrating injury to the neck as a result of impalement by needlefish (Tylosurus sp) while snorkeling. He sustained a penetrating injury in the posterior triangle of the neck. On presentation, he was stab...
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Background: This study aimed to determine the impact of pulmonary complications on death after surgery both before and during the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic.
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There is little evidence around the potentially protective role of previous Bacillus Calmette-Guerin (BCG) vaccination on postoperative mortality in patients with perioperative SARS-CoV-2 vaccination. Prior BCG vaccination did not protect SARS-CoV-2 infected patients against postoperative pulmonary complications and 30-day mortality.
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We aimed to determine the impact of pre-operative isolation on postoperative pulmonary complications after elective surgery during the global SARS-CoV-2 pandemic. We performed an international prospective cohort study including patients undergoing elective surgery in October 2020. Isolation was defined as the period before surgery during which pati...
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The severe acute respiratory coronavirus 2 (COVID-19) pandemic impacts the health of women at reproductive age in different ways, starting from pregnancy planning to post-delivery. This narrative review summarises the challenges to obstetric practice posed by the severe acute respiratory coronavirus 2 (COVID-19) pandemic. In this paper, we highligh...
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Traumatic abdominal wall hernia (TAWH) is a rare type of hernia resulting from blunt abdominal trauma. It develops after the episodes of inertia of sudden, high-energy blunt trauma or focused low-energy impact. A 22-year-old motorcyclist presented to the emergency department following a collision with an automobile. Clinical examination demonstrate...
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Background Surgery is the main modality of cure for solid cancers and was prioritised to continue during COVID-19 outbreaks. This study aimed to identify immediate areas for system strengthening by comparing the delivery of elective cancer surgery during the COVID-19 pandemic in periods of lockdown versus light restriction.
Article
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A colo‐appendico‐duodenal fistula is a rare occurrence that results from extrapulmonary tuberculosis (TB) complications, especially in the endemic region. image
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Background: Surgery is the main modality of cure for solid cancers and was prioritised to continue during COVID-19 outbreaks. This study aimed to identify immediate areas for system strengthening by comparing the delivery of elective cancer surgery during the COVID-19 pandemic in periods of lockdown versus light restriction. Methods: This internati...