3.Laparoscopic resection of a huge gangrenous Meckel's diverticulum in an adult.
Marc Weijie ONG ; Ker Kan TAN ; Richard SIM
Singapore medical journal 2013;54(4):e83-4
This report highlights the rare occurrence of a huge gangrenous Meckel's diverticulum in an adult, which was managed successfully with laparoscopic resection. A 45-year-old woman presented with a one-day history of right iliac fossa pain with fever and vomiting. Computed tomography showed a huge gangrenous Meckel's diverticulum. The patient underwent laparoscopic exploration and extracorporeal stapled resection of the Meckel's diverticulum. This case serves to highlight the safety and feasibility of performing a laparoscopic resection of a huge gangrenous Meckel's diverticulum in an adult.
Female
;
Gangrene
;
diagnostic imaging
;
surgery
;
Humans
;
Laparoscopy
;
Meckel Diverticulum
;
diagnostic imaging
;
surgery
;
Middle Aged
;
Tomography, X-Ray Computed
;
Treatment Outcome
4.Laparoscopic Versus an Open Colectomy in an Emergency Setting: A Case-Controlled Study.
Frederick H KOH ; Ker Kan TAN ; Charles B TSANG ; Dean C KOH
Annals of Coloproctology 2013;29(1):12-16
PURPOSE: Laparoscopy continues to be increasingly adopted for elective colorectal resections. However, its role in an emergency setting remains controversial. The aim of this study was to compare the outcomes between laparoscopic and open colectomies performed for emergency colorectal conditions. METHODS: A retrospective review of all patients who underwent emergency laparoscopic colectomies for various surgical conditions was performed. These patients were matched for age, gender, surgical diagnosis and type of surgery with patients who underwent emergency open colectomies. RESULTS: Twenty-three emergency laparoscopic colectomies were performed from April 2006 to October 2011 for patients with lower gastrointestinal tract bleeding (6), colonic obstruction (4) and colonic perforation (13). The hand-assisted laparoscopic technique was utilized in 15 cases (65.2%). There were 4 (17.4%) conversions to the open technique. The operative time was longer in the laparoscopic group (175 minutes vs. 145 minutes, P = 0.04), and the duration of hospitalization was shorter in the laparoscopic group (6 days vs. 7 days, P = 0.15). The overall postoperative morbidity rates were similar between the two groups (P = 0.93), with only 3 patients in each group requiring postoperative surgical intensive-care-unit stays or reoperations. There were no mortalities. The cost analysis did not demonstrate any significant differences in the procedural (P = 0.57) and the nonprocedural costs (P = 0.48) between the two groups. CONCLUSION: Emergency laparoscopic colectomy in a carefully-selected patient group is safe. Although the operative times were longer, the postoperative outcomes were comparable to those of the open technique. The laparoscopic group did not incur a higher cost.
Case-Control Studies
;
Colectomy
;
Colon
;
Costs and Cost Analysis
;
Emergencies
;
Hemorrhage
;
Hospitalization
;
Humans
;
Laparoscopy
;
Lower Gastrointestinal Tract
;
Operative Time
;
Retrospective Studies
5.Managing Deep Postanal Space Sepsis via an Intersphincteric Approach: Our Early Experience.
Ker Kan TAN ; Dean C KOH ; Charles B TSANG
Annals of Coloproctology 2013;29(2):55-59
PURPOSE: Managing deep postanal (DPA) sepsis often involves multiple procedures over a long time. An intersphincteric approach allows adequate drainage to be performed while tackling the primary pathology at the same sitting. The aim of our study was to evaluate this novel technique in managing DPA sepsis. METHODS: A retrospective review of all patients who underwent this intersphincteric technique in managing DPA sepsis from February 2008 to October 2010 was performed. All surgeries were performed by the same surgeon. RESULTS: Seventeen patients with a median age of 43 years (range, 32 to 71 years) and comprised of 94.1% (n = 16) males formed the study group. In all patients, an internal opening in the posterior midline with a tract leading to the deep postanal space was identified. This intersphincteric approach operation was adopted as the primary procedure in 12 patients (70.6%) and was successful in 11 (91.7%). In the only failure, the sepsis recurred, and a successful advancement flap procedure was eventually performed. Five other patients (29.4%) underwent this same procedure as a secondary procedure after an initial drainage operation. Only one was successful. In the remaining four patients, one had a recurrent abscess that required drainage while the other three patients had a tract between the internal opening and the intersphincteric incision. They subsequently underwent a drainage procedure with seton insertion and advancement flap procedures. CONCLUSION: Managing DPA space sepsis via an intersphincteric approach is successful in 70.6% of patients. This single-staged technique allows for effective drainage of the sepsis and removal of the primary pathology in the intersphincteric space.
Abscess
;
Anal Canal
;
Drainage
;
Fistula
;
Humans
;
Male
;
Retrospective Studies
;
Sepsis
;
Treatment Outcome
6.Preoperative Body Mass Index, 30-Day Postoperative Morbidity, Length of Stay and Quality of Life in Patients Undergoing Pelvic Exenteration Surgery for Recurrent and Locally-Advanced Rectal Cancer.
Jessica BEATON ; Sharon CAREY ; Michael J SOLOMON ; Ker Kan TAN ; Jane YOUNG
Annals of Coloproctology 2014;30(2):83-87
PURPOSE: Malnutrition is associated with an increased risk of developing complications following gastrointestinal surgery, especially following radical surgeries such as pelvic exenteration. This study aims to determine if preoperative body mass index (BMI) is associated with 30-day morbidity, length of hospital stay and/or quality of life (QoL) in patients undergoing pelvic exenteration surgery for recurrent and locally-advanced rectal cancer prior to a prospective trial. METHODS: A review of all patients who underwent pelvic exenteration surgery prior to 2008 was performed. Patients were included if they had a documented BMI as well as a QoL measurement (Functional Assessment Cancer Therapy - Colorectal questionnaire). RESULTS: Thirty-one patients, with a mean age of 56 years, had preoperative height and weight data, as well as measures of postoperative QoL, and formed the study group. The numbers of patients with recurrent (n = 17) or locally-advanced rectal cancer (n = 14) were similar. The mean length of stay was 21 days while the mean BMI of the patients was 24.3 (+/- 5.9) kg/m2. The majority of the patients were either of normal weight (n = 15) or overweight/obese (n = 11). The average length of hospital stay was significantly longer in patients who were underweight compared to those who were of normal weight (F = 6.508, P = 0.006) and those who were overweight and obese (F = 6.508, P = 0.007). CONCLUSION: This study suggests that a lower body mass index preoperatively is associated with a longer length of hospital stay. BMI is not associated with long-term QoL in this patient group. However, further prospective research is required.
Body Mass Index*
;
Humans
;
Length of Stay*
;
Malnutrition
;
Overweight
;
Pelvic Exenteration*
;
Quality of Life*
;
Rectal Neoplasms*
;
Thinness
;
Treatment Outcome
7.The Safety and Efficacy of Mesenteric Embolization in the Management of Acute Lower Gastrointestinal Hemorrhage.
Ker Kan TAN ; David Hugh STRONG ; Timothy SHORE ; Mohammmad Rafei AHMAD ; Richard WAUGH ; Christopher John YOUNG
Annals of Coloproctology 2013;29(5):205-208
PURPOSE: Mesenteric embolization is an integral part in the management of acute lower gastrointestinal (GI) bleeding. The aim of this study was to highlight our experience after adopting mesenteric embolization in the management of acute lower GI hemorrhage. METHODS: A retrospective review of all cases of mesenteric embolization for acute lower GI bleeding from October 2007 to August 2012 was performed. RESULTS: Twenty-seven patients with a median age of 73 years (range, 31 to 86 years) formed the study group. More than half (n = 16, 59.3%) of the patients were on either antiplatelet and/or anticoagulant therapy. The underlying etiology included diverticular disease (n = 9), neoplasms (n = 5) and postprocedural complications (n = 6). The colon was the most common bleeding site and was seen in 21 patients (left, 10; right, 11). The median hemoglobin prior to the embolization was 8.6 g/dL (6.1 to 12.6 g/dL). A 100% technical success rate with immediate cessation of hemorrhage at the end of the session was achieved. There were three clinical failures (11.1%) in our series. Two patients re-bled, and both underwent a successful repeat embolization. The only patient who developed an infarcted bowel following embolization underwent an emergency operation and died one week later. There were no factors that predicted clinical failure. CONCLUSION: Mesenteric embolization for acute lower GI bleeding can be safely performed and is associated with a high clinical success rate in most patients. A repeat embolization can be considered in selected cases, but postembolization ischemia is associated with bad outcomes.
Colon
;
Emergencies
;
Gastrointestinal Hemorrhage*
;
Hemoglobins
;
Hemorrhage
;
Humans
;
Ischemia
;
Retrospective Studies
8.The Safety and Efficacy of Mesenteric Embolization in the Management of Acute Lower Gastrointestinal Hemorrhage.
Ker Kan TAN ; David Hugh STRONG ; Timothy SHORE ; Mohammmad Rafei AHMAD ; Richard WAUGH ; Christopher John YOUNG
Annals of Coloproctology 2013;29(5):205-208
PURPOSE: Mesenteric embolization is an integral part in the management of acute lower gastrointestinal (GI) bleeding. The aim of this study was to highlight our experience after adopting mesenteric embolization in the management of acute lower GI hemorrhage. METHODS: A retrospective review of all cases of mesenteric embolization for acute lower GI bleeding from October 2007 to August 2012 was performed. RESULTS: Twenty-seven patients with a median age of 73 years (range, 31 to 86 years) formed the study group. More than half (n = 16, 59.3%) of the patients were on either antiplatelet and/or anticoagulant therapy. The underlying etiology included diverticular disease (n = 9), neoplasms (n = 5) and postprocedural complications (n = 6). The colon was the most common bleeding site and was seen in 21 patients (left, 10; right, 11). The median hemoglobin prior to the embolization was 8.6 g/dL (6.1 to 12.6 g/dL). A 100% technical success rate with immediate cessation of hemorrhage at the end of the session was achieved. There were three clinical failures (11.1%) in our series. Two patients re-bled, and both underwent a successful repeat embolization. The only patient who developed an infarcted bowel following embolization underwent an emergency operation and died one week later. There were no factors that predicted clinical failure. CONCLUSION: Mesenteric embolization for acute lower GI bleeding can be safely performed and is associated with a high clinical success rate in most patients. A repeat embolization can be considered in selected cases, but postembolization ischemia is associated with bad outcomes.
Colon
;
Emergencies
;
Gastrointestinal Hemorrhage*
;
Hemoglobins
;
Hemorrhage
;
Humans
;
Ischemia
;
Retrospective Studies
9.Anal Adenocarcinoma Can Masquerade as Chronic Anal Fistula in Asians
Faith Qi Hui LEONG ; Dedrick Kok Hong CHAN ; Ker Kan TAN
Annals of Coloproctology 2019;35(1):47-49
PURPOSE: Perianal adenocarcinoma arising from a chronic anorectal fistula is a rare condition for which the natural history and optimal management are not well established. For that reason, we conducted a retrospective analysis of 5 consecutive patients with a perianal adenocarcinoma arising from a chronic anorectal fistula managed at our institution from January 2014 to December 2015. METHODS: The patients were identified from a prospectively collected colorectal cancer database that included all patients managed for colorectal cancer at our institution. RESULTS: The median age at diagnosis was 64 years (range, 55–72 years). Magnetic resonance imaging (MRI) was the initial investigation for all patients and showed a hyperintense T2-weighted image. One patient underwent an abdominoperineal resection following neoadjuvant chemoradiotherapy and remained disease free during the 12-month follow-up. Three patients received neoadjuvant therapy with intent for surgery, but did not undergo surgery due to either worsening health or metastatic spread. One patient declined intervention. The median overall survival was 10.5 months (range, 2–19 months). CONCLUSION: A high index of suspicion is required to make a clinical diagnosis of an anal adenocarcinoma arising from a chronic fistula. Histologic diagnosis must be achieved to confirm the diagnosis. Multimodal therapy with neoadjuvant chemoradiotherapy followed by abdominoperineal resection is the treatment of choice.
Adenocarcinoma
;
Asian Continental Ancestry Group
;
Chemoradiotherapy
;
Colorectal Neoplasms
;
Diagnosis
;
Fistula
;
Follow-Up Studies
;
Humans
;
Magnetic Resonance Imaging
;
Natural History
;
Neoadjuvant Therapy
;
Prospective Studies
;
Rectal Fistula
;
Retrospective Studies
10.Obstructive Ileocolitis in Patients With Obstructed Colorectal Cancer – A Matched Case Control Study.
Ning Qi PANG ; Tian Zhi LIM ; Yuanpei ZHOU ; Ker Kan TAN
Annals of Coloproctology 2018;34(4):175-179
PURPOSE: Obstructive ileocolitis is an ulcero-inflammatory condition which typically occurs in the ileum or colon proximal to an obstructing colorectal lesion. If left unresolved, it often leads to intestinal perforation. We present a matched case control study of patients with obstructive ileocolitis caused by colorectal cancer to determine if any factors can predict this condition. METHODS: This is a retrospective review of 21 patients with obstructive colorectal cancer and histologically proven obstructive ileocolitis from 2005 to 2015 matched for age and sex with 21 controls with obstructing colorectal cancer without obstructive ileocolitis. RESULTS: The 21 patients with obstructive ileocolitis had a median age of 71 years (range, 52–86 years). The most common presenting symptom was abdominal pain (n = 16, 76.2%), followed by vomiting/nausea (n = 14, 66.7%) and abdominal distension (n = 12, 57.1%). Interestingly, the radiological feature of pneumatosis intestinalis was noted in only 1 case. No significant differences were observed in baseline comorbidities, clinical presentations, or tumor characteristics between the 2 groups. Patients with obstructive ileocolitis were found to have a significantly higher total leucocyte count (17.1 ± 9.4×109/L vs. 12.0 ± 6.8×109/L, P = 0.016), lower pCO2 (32.3 ± 8.2 mmHg vs. 34.8 ± 4.9 mmHg, P = 0.013), lower HCO3 (18.8 ± 4.5 mmol/L vs. 23.6 ± 2.7 mmol/L, P < 0.001), lower base excess (-6.53 ± 5.32 mmol/L vs. -0.57 ± 2.99 mmol/L, P < 0.001) and higher serum lactate levels (3.14 ± 2.19 mmol/L vs. 1.19 ± 0.91 mmol/L, P = 0.007) compared to controls. No radiological features were predictive of obstructive ileocolitis. CONCLUSION: Patients with obstructive ileocolitis tend to present with metabolic acidosis with respiratory compensation, raised lactate, and worse leucocytosis. Radiological features are not useful for predicting this condition.
Abdominal Pain
;
Acidosis
;
Case-Control Studies*
;
Colon
;
Colorectal Neoplasms*
;
Comorbidity
;
Compensation and Redress
;
Crohn Disease*
;
Humans
;
Ileum
;
Intestinal Obstruction
;
Intestinal Perforation
;
Lactic Acid
;
Retrospective Studies