MyMedR

Laparoscopic repair of perforated peptic ulcers: the sutured omental patch and focused sequential lavage technique

Siow SL, Mahendran HA

Surg Laparosc Endosc Percutan Tech, 2014 Apr;24(2):134-9.

PMID: 24686348 DOI: 10.1097/SLE.0b013e31828fa951

We propose a standardized technique of repair and lavage with the outcomes of 50 consecutive patients treated at our institution. The perforation was closed primarily and reinforced with omental patch. It was then followed by peritoneal lavage in a focused sequential manner that involved quadrant to quadrant lavage with tilting of operating table and changing of position between the surgeon and the camera surgeon. None of our patients had postoperative intra-abdominal complications, but unfortunately 1 patient succumbed to respiratory complications. Respiratory complications was the most common postoperative complication in our series (9 patients), whereas 2 patients had ileus. There were no leaks or reoperations in our series. Laparoscopic repair and sutured omentoplasty, followed by focused sequential lavage in a systematic manner, if performed diligently, will yield good outcomes.

A case series of adult intussusception managed laparoscopically

Siow SL, Mahendran HA

Surg Laparosc Endosc Percutan Tech, 2014 Aug;24(4):327-31.

PMID: 24732742 DOI: 10.1097/SLE.0000000000000006

Adult intussusception is rare, representing only 1% to 5% of bowel obstructions. This is a case series of 8 patients who presented with intestinal obstruction secondary to intussusception managed laparoscopically at our institution.

Fulltext Chronic rectal bleeding in Proteus syndrome

Siow SL, Sim NK

Med J Malaysia, 2010 Dec;65(4):313-4.

PMID: 21901955

Proteus Syndrome is a rare congenital hamartomatous disorder that typically manifests itself in overgrowth, vascular malformation and disregulation of fatty tissue. The tissues affected are commonly the limbs but can be of any tissue. Vascular anomalies are common and appear at random sites on the body. Diagnosis is often difficult leading to wrong treatment. We describe a case of a 17-year-old girl with Proteus syndrome presented with symptomatic anaemia secondary to chronic rectal bleeding. Computed Tomography Angiogram of Abdomen and Pelvis confirmed the presence of rectal vascular malformations.

Mesh erosion into skin following laparoscopic totally extraperitoneal (TEP) inguinal hernia repair

Soon CY, Siow SL

BMJ Case Rep, 2023 Jan 03;16(1).

PMID: 36596626 DOI: 10.1136/bcr-2022-254011

With increasing utilisation of meshes in inguinal hernia repair, reports of mesh-related complications are emerging, particularly late visceral complications, with mesh migration and erosion into the small bowel, bladder and colon reported after laparoscopic totally extraperitoneal (TEP) inguinal hernia repair. We present a case of spontaneous mesh migration through the superficial inguinal ring with skin erosion following TEP inguinal hernia repair, the first published report in the literature to our knowledge. This case highlights the difficulty in diagnosis due to the long latent period of hernia repair and the onset of erosion. A high index of suspicion is required when diagnosing any patient who presents with an unexplained groin abscess following ipsilateral TEP repair. CT scan should be performed early for diagnosis and assessment. Removal of the migrated portion of the mesh, antibiotic therapy and secondary wound closure are strategies for the successful treatment of this complication.

Fulltext Acute lower gastrointestinal haemorrhage secondary to small bowel ascariasis

Stephen DD, Siow SL

Malays J Med Sci, 2012 Apr;19(2):92-5.

PMID: 22973144 MyJurnal

Acute lower gastrointestinal haemorrhage secondary to small bowel ascariasis is extremely rare. A high level of suspicion should be maintained when dealing with acute gastrointestinal haemorrhage in migrants and travellers. Small bowel examination is warranted when carefully repeated upper and lower endoscopies have failed to elicit the source of bleeding. Appropriate test selection is determined by the availability of local expertise. We present a case of acute lower gastrointestinal haemorrhage secondary to jejunal ascariasis and a literature search on lower gastrointestinal haemorrhage associated with jejunal infestation with Ascaris.

Fulltext Stomach gastrointestinal stromal tumours (GIST) intussuscepted into duodenum : a case report

Siam FA, Siow SL

Malays J Med Sci, 2008 Oct;15(4):68-70.

PMID: 22589640

Gastrointestinal stromal tumours (GIST) are tumours of gastrointestinal tract and mesentery. The commonest site of its occurrence is the stomach. Patients with GIST are usually asymptomatic but they can present as abdominal pain, bleeding and rarely gastric outlet obstruction. In this particular case, the patient presents with symptoms of anaemia, partial gastric outlet obstruction and intermittent epigastric pain. Laparotomy was performed and a diagnosis of gastroduodenal intussusception secondary to gastrointestinal stromal tumour was made.

Fulltext Laparoscopic management of symptomatic urachal remnants in adulthood

Siow SL, Mahendran HA, Hardin M

Asian J Surg, 2015 Apr;38(2):85-90.

PMID: 24947766 DOI: 10.1016/j.asjsur.2014.04.009

The traditional surgical approach to the excision of persistent urachal remnants is a lower midline laparotomy or semicircular infraumbilical incision. The aim of this study is to report our experience with laparoscopic urachus excision as a minimally invasive diagnostic and surgical technique.

Fulltext Adult pyloric stenosis masquerading as acute renal failure

Siow SL, Wong CM, Sohail M

Med J Malaysia, 2009 Jun;64(2):168-9.

PMID: 20058581 MyJurnal

Gastric outlet obstruction and in particular, pyloric stenosis, is relatively common in developing countries. Acute clinical presentation is often the manifestation of biochemical and electrolyte changes. The presence of metabolic alkalosis in combination with acute renal failure should alarm us to the possibility of adult pyloric stenosis. We report a case of adult pyloric stenosis that presented as acute renal failure and discuss its pathophysiology.

Fulltext Case report: Leiomyoma of the anterior abdominal wall

Ernest Ong CW, Siow SL

Med J Malaysia, 2016 04;71(2):81-2.

PMID: 27326950 MyJurnal

Leiomyomas are benign soft tissue swellings of smooth muscle origin, most commonly found in the uterus. Extra uterine leiomyomas presenting as an abdominal mass is often a diagnostic challenge as such occurrence is rare. We present a rare case of primary abdominal wall leiomyoma, and highlight the importance of laparoscopic approach in the diagnosis and treatment of such tumour.

Fulltext Laparoscopic transgastric resection for intraluminal gastric gastrointestinal stromal tumors located at the posterior wall and near the gastroesophageal junction

Siow SL, Mahendran HA, Wong CM

Asian J Surg, 2017 Sep;40(5):407-414.

PMID: 26922628 DOI: 10.1016/j.asjsur.2015.12.001

OBJECTIVE: Intraluminal gastric gastrointestinal stromal tumors (GISTs) located at the posterior wall and near the gastroesophageal junction represent a surgical challenge. We present our experience of laparoscopic transgastric resection for gastric GISTs of such location.

METHODS: Data of seven patients undergoing laparoscopic transgastric resection were identified and retrospectively reviewed with regard to procedural steps and patient outcomes.

RESULTS: Seven patients (4 men; mean age 64.1 ± 14.6 years) with gastric GISTs underwent laparoscopic transgastric resection from January 2010 to May 2015. Three of the seven GISTs were located near the gastroesophageal junction and the rest were found in the posterior wall of the stomach. All seven patients underwent successful laparoscopic resection without any conversions. There were no mortalities and no significant postoperative complications. Intraoperative endoscopy was performed for all patients. The mean operative time was 164.0 ± 59.1 minutes. Regular diet was resumed within 3 days on average and mean postoperative stay was 3.6 ± 1.3 days. All patients achieved complete R0 resection with a mean tumor size of 5.5 ± 1.1 cm. At a mean follow-up of 48.0 ± 13.4 months, all patients were recurrence free.

CONCLUSIONS: GISTs of the posterior wall and in close proximity to the gastroesophageal junction can be safely resected laparoscopically using such an approach. Standard technique is required to achieve good oncological outcomes.

Fulltext Abdominal tuberculosis manifested as tuberculosis of the urachal sinus in an adolescent and the role of laparoscopy in the management: a rare case report

Siow SL, Sha HL, Wong CM

BMC Infect Dis, 2016 Feb 05;16:68.

PMID: 26850778 DOI: 10.1186/s12879-016-1405-6

BACKGROUND: Abdominal tuberculosis (TB) is an uncommon affliction in adolescence. It is usually associated with pulmonary tuberculosis. The disease is caused by lymphohaematogenous spread after primary infection in the lung or ingestion of infected sputum and has a typically protean and nonspecific presentation. The occurrence of TB in an urachal remnant is probably from the contiguous spread of an abdominal focus or mesenteric lymph node. Urachal TB is a rare entity, with only two reported cases in the literature. We report here a case of clinically silent pulmonary and abdominal TB that manifested in the infection of an urachal sinus and highlight the role of laparoscopy in its diagnosis and treatment.

CASE PRESENTATION: A 14-year-old boy presented to our institution with peri-umbilical swelling and purulent discharge from his umbilicus for 2 weeks duration. There were no radiological, microbiological or clinical evidences of TB in the initial presentation, though he had close social contact with someone who had TB. A computed tomography scan of the abdomen confirmed the diagnosis of an urachal abscess. An incision and drainage procedure was performed followed by a course of antibiotics. A scheduled laparoscopic approach later showed that the peritoneum and serosal surface of the small and large intestines were studded with nodules of variable sizes, in addition to the urachal sinus. The histology of the resected tissues (urachal sinus and nodules) was consistent of TB infection. He recovered fully after completing 6 months of anti-tuberculous therapy.

CONCLUSION: This report highlights a rare case of TB urachal abscess in an adolescent boy, the difficulties in the diagnosis of abdominal tuberculosis, the need to consider TB as a cause of urachal infection in endemic areas and the use of laparoscopy in both diagnosis and treatment.

Fulltext Successful laparoscopic management of paraesophageal hiatal hernia with upside-down intrathoracic stomach: a case report

Siow SL, Tee SC, Wong CM

J Med Case Rep, 2015;9:49.

PMID: 25890166 DOI: 10.1186/s13256-015-0519-6

Paraesophageal hernia with intrathoracic mesentericoaxial type of gastric volvulus is a rare clinical entity. The rotation occurs because of the idiopathic relaxation of the gastric ligaments and ascent of the stomach adjacent to the oesophagus through the hiatus defect, while the gastroesophageal junction remains in the abdomen. The open approach remains the gold standard therapy for most patients. Here we report the case of a patient with such a condition who underwent a successful laparoscopic surgery. A literature search revealed that this is the first case report from Southeast Asia.

Fulltext Transcervical diverticulectomy for Killian-Jamieson diverticulum

Siow SL, Mahendran HA, Hardin M

Asian J Surg, 2017 Jul;40(4):324-328.

PMID: 25779884 DOI: 10.1016/j.asjsur.2015.01.007

Surgery for Killian-Jamieson diverticulum of the esophagus is scarcely reported in the literature owing to the rarity of this entity. This is a case report of such a diverticulum and a description of the transcervical diverticulectomy that we performed on a 49-year-old lady. The patient was investigated for symptoms of gastroesophageal reflux disease and was diagnosed with a left-sided Killian-Jamieson diverticulum.

Laparoscopic repair of paraesophageal hernia with organo-axial intrathoracic gastric volvulus

Siow SL, Chuah JS, Mahendran HA

Asian J Endosc Surg, 2020 Jul;13(3):437-440.

PMID: 31338969 DOI: 10.1111/ases.12740

Intrathoracic organo-axial gastric volvulus is a rare clinical entity associated with paraesophageal hernia. It is characterized by migration of the stomach into the thoracic cavity through an enlarged hiatal defect and rotation around its long axis connecting the cardia and the pylorus. A 72-year-old woman presented with epigastric pain that radiated to the left scapula for 1 week prior to presentation. Computed tomography scan of her thorax and abdomen demonstrated paraoesophageal hernia with organo-axial intrathoracic gastric volvulus. Laparoscopically, the stomach was returned to its abdominal position, the mediastinal sac was excised and after adequate intra-abdominal length of the esophagus was attained, the hiatal defect was closed primarily and reinforced with a composite mesh. An anterior 180° partial fundoplication was performed as both an anti-reflux procedure and also as a form of gastropexy. She had an uneventful recovery and remains well after 2 years.

A case of laparoscopic resection of myxoid liposarcoma of the greater omentum

Siow SL, Faqihuddin MH, Mahendran HA

Med J Malaysia, 2020 07;75(4):455-457.

PMID: 32724018

Primary omental liposarcoma is a rare clinical entity with less than 20 cases being reported in the literature. Laparotomy has been the traditional approach for resection, with no reports of laparoscopic resection. A 39-year-old lady presented at the Sarawak General Hospital, Kuching, Malaysia with a history of a progressive, painless left upper quadrant abdominal swelling for a year. CT scan showed a well-defined heterogeneously enhancing cystic mass measuring 7.5x7.5x8.1cm with a poor plane with the adjacent greater curvature of stomach and transverse colon. Upper and lower endoscopy was normal. The tumour was completely dissected from the adjacent transverse colon and removed laparoscopically. Histopathological examination of the resected specimen revealed a myxoid liposarcoma. She had an uneventful recovery and was discharged well on the third postoperative day. She subsequently underwent adjuvant chemotherapy and was well at 1-year follow-up with PET CT showing no evidence of recurrence or metastases.

Complication and remission rates after endoscopic argon plasma coagulation in the treatment of haemorrhagic radiation proctitis

Siow SL, Mahendran HA, Seo CJ

Int J Colorectal Dis, 2017 Jan;32(1):131-134.

PMID: 27527929 DOI: 10.1007/s00384-016-2635-1

PURPOSE: The management of haemorrhagic radiation proctitis is challenging because of the necessity for repeated intervention. The efficacy of argon plasma coagulation has been described before but the optimum treatment strategy remains debatable. This is a review of our experience over a decade treating patients with haemorrhagic radiation proctitis and their follow-up.

METHODS: This is a retrospective review of consecutive patients who underwent argon plasma coagulation for haemorrhagic radiation proctitis between January 2003 and December 2013. The patients were followed up using a prospectively maintained database.

RESULTS: Ninety-one patients were included with a mean follow-up of 13.1 months. Majoity (n = 85, 93.4 %) of the patients were female. Mean age at the time of treatment was 58.2 (range 23-87) years old. Majority of the patients (n = 73, 80.2 %) received radiotherapy for gynaecological malignancies followed by colorectal (n = 13, 14.3 %) and urological (n = 5, 5.5 %) malignancies. Mean interval between radiation and proctitis was 13.8 (range 3-40) months. Seventy-nine percent of patients were successfully treated after 1-2 sessions. Seventeen (18.7 %) patients experienced self-limiting early complications, and three (3.3 %) had late complications of rectal stenosis which was managed conservatively. Severity of bleeding during the initial presentation is an independent factor that predicts the number of sessions required for successful haemostasis (p = 0.002).

CONCLUSIONS: Argon plasma coagulation is a reasonable treatment option in patients with haemorrhagic radiation proctitis with good safety profile. Our study suggests that the number of APC sessions required to arrest bleeding correlates with the severity of bleeding on initial presentation.

Quality of life following laparoscopic totally extraperitoneal repair of a unilateral reducible inguinal hernia

Chuah JS, Siow SL, Bujang MA

Asian J Endosc Surg, 2024 Jul;17(3):e13320.

PMID: 38720454 DOI: 10.1111/ases.13320

BACKGROUND: Laparoscopic totally extraperitoneal (TEP) inguinal hernia repair has become increasingly favored over open Lichtenstein tension-free mesh repair owing to its associated benefits, including reduced postoperative pain, early return to normal activities, and a comparable recurrence rate. In recent years, emphasis has been placed on patient-reported outcomes, particularly health-related quality of life (QOL), as a critical metric for evaluating surgical success. This study aimed to evaluate the overall QOL following laparoscopic TEP repair of unilateral inguinal hernia.

METHODS: This prospective study enrolled patients aged 18 years or older who underwent elective laparoscopic TEP hernia repair for unilateral inguinal hernia from April 2020 to March 2022. Data collected include demographic details, hernia characteristics, postoperative complications, and postoperative QOL assessment. The Short Form 36 Health Survey Version 2 (SF-36v2), a validated general QoL questionnaire, was administered preoperatively and at 1 month, 6 months, and 1 year postoperatively. Statistical analysis utilized paired t-tests for comparisons, with significance set at a p-value

Fulltext Single-incision laparoscopic cholecystectomy: the first Malaysian experience

Siow SL, Khor TW, Chea CH, Nik Azim NA

Asian J Surg, 2012 Jan;35(1):23-8.

PMID: 22726560 DOI: 10.1016/j.asjsur.2012.04.004

Single-incision laparoscopic cholecystectomy (SILC) is an evolving concept in minimally invasive surgery. It utilizes the concept of inline viewing and a single incision that accommodates all of the working instruments. Here, we describe a single surgeon's initial experiences of using this technique in a tertiary hospital.

Fulltext Adult intussusception: 5-year experience in Sarawak

Siow SL, Chea CH, Hashimah AR, Ting SC

Med J Malaysia, 2011 Aug;66(3):199-201.

PMID: 22111440 MyJurnal

Adult intussusception is rare. It represents only 5% of all intussusceptions and 1% of bowel obstruction. Clinical presentations are usually variable with a variety of acute, intermittent and chronic symptoms. It is associated with an underlying pathologic process in 90% of cases. A lack of Malaysia data prompted review of the Sarawak experience with this uncommon entity, focusing on the clinical features, diagnostic procedure and treatment. During the last 5 years, there were 14 cases of surgically proven adult intussusception. Mean age was 45.9 years. There were 9 enteric and 5 colonic intussusceptions. Ninety-three percent of the intussusceptions were associated with a pathologic lesion. Thirty-three percent of the enteric lesions were malignant and 67% were benign. Eighty percent of the colonic lesions were malignant and 20% were benign. Computed tomography scan has a good diagnostic accuracy of 83% and should be considered for all patients with nonspecific abdominal symptoms or suspected bowel obstruction. Treatment of choice for colonic intussusception in adults is en bloc resection without reduction whenever possible, whereas a more selective approach for enteric lesions.

Fulltext Killian-jamieson diverticulum: the rarer cervical esophageal diverticulum

Chea CH, Siow SL, Khor TH, Nik Azim NA

Med J Malaysia, 2011 Mar;66(1):73-4.

PMID: 23765152 MyJurnal

Killian-Jamieson (K-J) diverticulum is a rare cervical oesophageal diverticulum, less commonly encountered compared with Zenker's diverticulum (ZD). We report a case of K-J diverticulum in a 52-year-old lady who presented with sensation of lump in the neck and food stuck in the throat of 5 years duration. Esophagogram showed a large rightsided pharyngoesophageal diverticulum which was confirmed on endoscopy. The patient underwent a diverticulopexy and recovered without complications. Her symptoms had improved. In this report, we review the literature and describe our surgical technique.

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