Thawatchai Akaraviputh

Mahidol University | MU · Department of Surgery (Siriraj)

Objective: Radical surgery is the mainstay treatment for adenocarcinoma of the esophagogastric junction. The presence of microscopic residual tumor tissue after curative-intent surgery is associated with recurrence. This study compared the outcomes of patients with microscopic residual tumor (Residual+ group) and those without microscopic residual...

Objective: Sigmoid-type achalasia represents an advanced stage of achalasia characterized by significant dilation and tortuosity of the esophageal lumen. Considering the demonstrated efficacy of peroral endoscopic myotomy (POEM) in treating early-stage achalasia, this procedure may offer an alternative therapeutic approach for sigmoid-type achalasi...

Peritoneal metastasis in gastric cancer has a poor prognosis and is increasing in prevalence. Neoadjuvant chemotherapy is used for advanced tumors; however, surgery is generally not considered for metastatic and unresectable diseases. Recently, conversion surgery, a treatment which aims for an R0 resection following chemotherapy, has become a novel...

While endoscopic retrograde cholangiopancreatography (ERCP) remains the primary treatment modality for common bile duct stones (CBDS) or choledocholithiasis due to advancements in instruments, surgical intervention, known as common bile duct exploration (CBDE), is still necessary in cases of difficult CBDS, failed endoscopic treatment, or altered a...

Background/aims: Achalasia is a rare esophageal motility disease, for which peroral endoscopic myotomy (POEM) has emerged as a promising treatment option; however, recurrence remains a challenge. Timed barium esophagography (TBE) is a useful diagnostic tool and potential outcome predictor of achalasia. This study aimed to determine predictive tool...

Background/aims: The coronavirus disease 2019 pandemic has affected the worldwide practice of upper gastrointestinal endoscopy. Here we designed a modified N95 respirator with a channel for endoscope insertion and evaluated its efficacy in upper gastrointestinal endoscopy. Methods: Thirty patients scheduled for upper gastrointestinal endoscopy w...

Objective: Enhanced Recovery After Surgery (ERAS) is a multidisciplinary approach that aims to optimize perioperative management, promote postoperative recovery, reduce postoperative complications, and improve long-term survival. The current study aimed to evaluate and compare the postoperative physical activity after gastrectomy between patients w...

Objective: The current standard of care for locally advanced rectal cancer is associated with multimodality therapy. Neoadjuvant chemoradiation significantly decreased the locoregional recurrence rate and improved survival. However, distant metastasis develops rather than local recurrence, which becomes the leading cause of death. This study aimed...

Background: Despite the infrequency of trocar site hernias (TSHs), fascial closure continues to be recommended for their prevention when using a ≥ 10-mm trocar. Aim: To identify the necessity of fascial closure for a 12-mm nonbladed trocar incision in minimally invasive colorectal surgeries. Methods: Between July 2010 and December 2018, all pa...

Objective: Bariatric surgery is considered the most effective treatment for morbid obesity, and is increasingly performed in Thailand and globally. We aimed to establish the outcomes of bariatric surgery performed at Siriraj Hospital, Bangkok. Materials and Methods: This was a retrospective study of patients who underwent bariatric surgery between...

In the highly contagious coronavirus disease 2019 pandemic, aerosol-generating procedures (AGPs) are associated with high-risk of transmission. Upper gastrointestinal endoscopy is a procedure with the potential to cause dissemination of bodily fluids. At present, there is no consensus that endoscopy is defined as an AGP. This review discusses the c...

Background The SARS-CoV2 virus has been identified in abdominal cavity of the COVID-19 patients. Therefore, the potential viral transmission from any surgical created smoke in these patients is of concern especially in laparoscopic surgery. This study aimed to compare the amount of surgical smoke and surgical field contamination between laparoscopi...

Background and objectives: Laparoscopic cholecystectomy with common bile duct exploration (LC with LCBDE) remains the preferred technique for difficult common bile duct stone (CBDS) removal. The chopstick method uses commonly available instruments and may be cost-saving compared to other techniques. We studied the outcome of LCBDE using the chopst...

Background: Locally advanced rectal cancer is treated using neoadjuvant chemoradiation (nCRT), followed by total mesorectal excision (TME). Tumor regression and pathological post-treatment stage are prognostic for oncological outcomes. There is a significant correlation between markers representing cancer-related inflammation, including high neutr...

Endoscopy practice in Thailand is being performed and serviced by both surgeons and gastroenterologists. The number of endoscopy performed by each specialty is very much comparable. Before 2000, the services were done independently. On 15th December 2005 the Thai Association of Gastrointestinal Endoscopy (TAGE) has been found there is a rapid progr...

The development of information and communication technology has had a dramatic impact on people’s lives, including medical matters. The Internet has made it possible for telemedicine to be implemented with excellent image quality at low cost; such telemedicine was first applied between Japan and South Korea in 2002. The technology is not restricted...

Robotic surgery, currently monopolized by the intuitive “daVinci Surgical System” (dVSS), has now established its strong foothold in the USA and a few other countries in Europe and Asia. However, because of its high cost and lack of evidence to support its superiority over the traditional laparoscopic technique, its utility especially in less afflu...

Objective: Microscopic residual tumor (R1 resection) may have a significant negative impact on prognosis of patients with adenocarcinoma of stomach and esophagogastric junction. Results of R1 resection on survival and recurrence patterns have not yet been thoroughly investigated in Thailand. The aim of this study was to study the oncological outcom...

Introduction: Residual, intra-abdominal CO2 contributes to abdominal distension and pain after laparoscopic surgery. The study was designed to assess recovery after gas release in patients who have undergone laparoscopic cholecystectomy (LC). Methods: A total of 142 patients undergoing laparoscopic cholecystectomy were randomly divided into thre...

Objective: Duodenal diverticulum is not uncommon but most are asymptomatic. Surgery is recommended only for the patients with symptoms. Although laparoscopic diverticulectomy can be done, it is often with significant difficulties due to inherent limitations of the laparoscopic technique and posterior location of the lesion. The advent of the roboti...

Background. Traditionally, rectal cancer surgery is recommended 6 to 8 weeks after completing neoadjuvant chemoradiation. Extending the waiting time may increase the tumor response rate. However, the perioperative complication rate may increase. The purpose of this study was to determine the association between extending the waiting time of surgery...

Objective: Mesenteric and omental cyst are the rare intra-abdominal pathologies. We report laparoscopic excision of a large omental cyst in an adult patient. Methods: A 56 year-old female presented with a year history of upper abdominal pain with palpable mass at epigastrium. On physical examination, a non-tenderness mass, 8 cm in diameter, was not...

Introduction: Pneumatosis intestinalis is one of serious conditions following mechanical bowel obstruction. Emergency surgery is generally required to be a definite treatment in these patients of pneumatosis intestinalis, because of its risk of bowel ischemia and perforation. Since the operation in unprepared colon usually resulted in unfavorable...

e current cost of the da Vinci® SiTM robotic surgery system in Thailand is around 130 million baht and annual maintenance is 5 million baht. The high cost of purchasing and maintaining of the robotic system results in a limited number of centers and reduces surgical training opportunities. Siriraj Hospital administrators have committed to the conti...

Situs inversus is a rare and silent autosomal recessive disorder occurring in 1:5,000 to 1:20,000 individuals. Laparoscopic cholecystectomy, a standard treatment for gallbladder disease in the general population, is very challenging in patients with situs inversus, especially for right-handed surgeons. We herein report a case involving our modified...

Objective: To demonstrate potential benefits of three-port hand-assisted laparoscopic sigmoidectomy (HALS) compared with open sigmoidectomy (OS) in terms of short-term outcomes and cost-benefit. Material and Method: A retrospective review of a database of cases that matched 100 sigmoid cancer patients treated with sigmoidectomy at the Department of...

Introduction Inguinal hernia is one of the most surgical common diseases. Giant inguinal hernia is more unusual and significantly challenging in terms of surgical management. It is defined as an inguinal hernia that extends below the midpoint of inner thigh when the patient is in standing position. Presentation of case A 67-year-old male presented...

Objective: Endoscopic sphincteroplasty (ESPT) using a large CRETM Wireguided balloon dilatation is an alternative technique in removing a difficult common bile duct (CBD) stone. However the outcome and complications of endoscopic difficult CBD stone removal using ESPT have not been well demonstrated. The present study revealed the outcome of the t...

Acquired post-traumatic tracheoesophageal fistula (TEF) is an uncommon entity requiring early diagnosis. Among the many strategies in surgical management, we report a case successfully treated with a single-stage tracheal resection and esophageal repair with platysma myocutaneous interposition flap. A 24-year-old man had a motor vehicle accident wi...

Hilar cholangiocarcinoma (HCCA) is one of the most common types of hepatobiliary cancers reported in the world including Asia Pacific region. Early HCCA may be completely asymptomatic. When significant hilar obstruction develops, the patient presents with jaundice, pale stools, dark urine, pruritus, abdominal pain, and sometimes fever. Since no sin...

Endoscopic biliary stenting is a well-established treatment of choice for many obstructive biliary disorders. Commonly used plastic endoprostheses have a higher risk of clogging and dislocation. Distal stent migration is an infrequent complication. Duodenum is the most common site of a migrated biliary stent. Intestinal perforation can occur during...

The present study was undertaken to evaluate the demographic data, endoscopic ultrasonography (EUS) characteristics of the sub-epithelial lesions, pathology results, complications and long-term follow-up of the patients whom referred for EUS evaluation at Siriraj Hospital. From January 2008-June 2011, a total of 61 cases was referred for EUS evalua...

Endoscopic tattooing is one of the most useful tools for the localization of small colorectal lesions especially in the laparoscopic setting. This is a minimally invasive endoscopic procedure without risk of major complications. However, many studies have revealed complications resulting from this procedure. In this article, several topics are revi...

Single-incision laparoscopic colectomy (SILC) was introduced as a novel minimally invasive technique. The benefits of this technique include reducing number of the incision and cosmetic improvement. Unlike the conventional laparoscopic colectomy, majority of previously reported SILC need to be performed using special curved or articulated instrumen...

Endoscopic ultrasound (EUS) and EUS-guided fine-needle aspiration (EUS-FNA) play increasingly prominent roles in the diagnosis and management of pancreatic cysts. The Asian Consortium of Endoscopic Ultrasound was recently formed to conduct collaborative research in this area. This is a review of literature on true pancreatic cysts. Due to the lack...

A 59-year-old man with metastatic an esophageal tumor from hepatocellular carcinoma (HCC) presented with progressive dysphagia. He had undergone liver transplantation for HCC three and a half years prevously. At presentation, his radiological and endoscopic examinations suggested a submucosal tumor in the lower esophagus, causing a luminal strictur...

Unlike endoscopic retrograde cholangiopancreatography (ERCP) service, endoscopic ultrasonography (EUS) service in Thailand is at its elementary state. Currently, there are only 11 hospitals in Thailand carrying out EUS whereas there are more than 50 hospitals carrying out ERCP. This is a multicenter questionnaire survey that obtained information on...

Traditionally, there are several approaches to manage left-sided colonic carcinoma obstruction, such as tumor resection with primary anastomosis, tumor resection with end-colostomy and loop-colostomy. Recently, colonic stent insertion was introduced as a bridge prior to definite surgery. We demonstrated a hybrid approach for obstructed sigmoid carc...

Early gastric cancer (EGC) defined as gastric cancer involving up to submucosal layer, regardless of lymph node metastasis, is increasingly found at Siriraj Hospital. Understanding the characteristic of EGC and result of surgical management for EGC can help to choose the optimal treatment. In the present study, the authors reported the first case s...

Background: With the rapid and marked progress in gastrointestinal endoscopy, the education of doctors in many new diagnostic and therapeutic procedures is of increasing importance. Telecommunications (telemedicine) is very useful and cost-effective for doctors' continuing exposure to advanced skills, including those needed for hepato-pancreato-bi...

Radical esophagectomy was reported to have prolonged survival in patients with esophageal cancer However, it is associated with high morbidity and mortality. Controversy still exists regarding value of radical esophagectomy The authors analyzed the results, including complications and survival in 68 consecutive patients with esophageal cancer who w...

ABSTRACT: For Choledochal cyst type I, complete excision of cyst with Roux-en-Y hepaticojejunostomy anastomosis is the treatment of choice. It has been performed laparoscopically with the advancement of laparoscopic skill. Recently, a telemanipulative robotic surgical system was introduced, providing laparoscopic instruments with wrist-arm technolo...

Colocolonic intussusception is an uncommon cause of intestinal obstruction in children. The most common type is idiopathic ileocolic intussusception. However, pathologic lead points occur approximately in 5% of cases. In pediatric patients, Meckel's diverticulum is the most common lead point, followed by polyps and duplication. We present a case of...

Extent of lymph node dissection still remains one of the most controversial issues regarding radical gastrectomy. Knowledge of the pattern and incidence of lymph node metastasis may help to define the optimal extent of lymph node dissection. The authors analyzed lymph node metastasis and survival rate in 130 consecutive gastric cancer patients who...

To characterize clinical features, surgery, outcome, and survival of malignant melanoma (MM) of the gastrointestinal (GI) tract in a surgical training center in Bangkok, Thailand. A retrospective review was performed for all patients with MM of the GI tract treated at our institution between 1997 and 2007. Fourteen patients had GI involvement eithe...

To evaluate the surgical outcome of preoperative long-course chemoradiation therapy (PCRT) in patients with ultra low rectal cancer. Medical records of patients with rectal adenocarcinoma located within the length of 5 cm from the anal verge, who underwent elective oncological resection between 2003 and 2006 at Siriraj Hospital, were reviewed. PCRT...

The advantage of a transverse incision over a midline incision for open right hemicolectomy remains controversial. To compare the short-term surgical outcomes of right hemicolectomy through midline incision (RHML) and right hemicolectomy through right transverse incision (RHTR) for right-sided colon cancer. This retrospective study included 74 pati...

Knowledge of the factors influencing colonoscopic perforation (CP) is of decisive importance, especially with regard to the avoidance or minimization of the perforations. The aim of this study was to determine the incidence and risk factors of CP in one of the endoscopic training centers accredited by the World Gastroenterology Organization. The pr...

Management of posttraumatic diaphragmatic injury (DI) is still challenging. In suspected patients with stable hemodynamic, laparoscopy may aid in the diagnosis and treatment of DI. To analyze and determine the role of laparosocopy in diagnosis and treatment of suspected diaphragmatic injury patients at Trauma Centre, Faculty of Medicine Siriraj Hos...

To determine the efficacy of perioperative parecoxib injection on postoperative pain relief after laparoscopic cholecystectomy. A prospective, double-blind, randomized, placebo-controlled study was conducted on 70 patients who underwent elective laparoscopic cholecystectomy under general anesthesia at Siriraj Hospital, Bangkok, from January 2006 to...

The timing of minimally invasive approach of choledocholithiasis, using endoscopic retrograde cholangiopancreatography (ERCP) and laparoscopic cholecystectomy (LC), is challenging. The aim of the present retrospective study was to assess the feasibility and safety of endoscopic stone removal for choledocholithiasis followed by same-day LC. Between...

Foreign body (FB) in the upper gastrointestinal tract (UGIT) is a common clinical problem in endoscopic practice. At present, many physicians recommend endoscopy for both diagnosis and treatment. To date, few have report endoscopic findings and management of FB in UGIT. To report the authors' experience and outcome of the endoscopic management of f...

To determine the incidence of colonoscopic perforation (CP), and evaluate clinical findings, management and outcomes of patients with CP from the World Gastroenterology Organization (WGO) Endoscopy Training Center in Thailand. All colonoscopies and sigmoidoscopies performed between 1999 and 2007 in the Endoscopic unit, Faculty of Medicine Siriraj H...

To evaluate the outcomes of sphincter-saving operation for rectal cancer without protective stoma and pelvic drain and to determine factors influencing anastomotic leakage. We investigated 170 patients undergoing elective sphincter-saving operation without protective stoma and pelvic drain during 2003-2006 in a single institution. Early postoperati...

The aims of this study were to evaluate the efficacy and safety of precut sphincterotomy in relation to the experience of a single endoscopist, and to establish the number of procedures required before achieving an effective and safe precut sphincterotomy. A total of 200 consecutive patients underwent precut sphincterotomy carried out by a single e...

To determine the relationship between pre-operative hypoalbuminemia and the development of complications following rectal cancer surgery, as well as postoperative bowel function and hospital stay. The medical records of 244 patients undergoing elective oncological resection for rectal adenocarcinoma at Siriraj Hospital during 2003 and 2006 were rev...

To compare the results and complications of early pre-cutting technique with standard technique. From January 2003 to December 2004, a total of 416 consecutive therapeutic biliary ERCP procedures were performed by one endoscopist (T.A.). Data were retrospectively collected according to procedure indication and results. Of these, 293 procedures (70....

Laparoscopically-assisted right hemicolectomy (LRH) is an acceptable alternative to open surgery for right-sided colon cancer which offers patients less pain and faster recovery. However, special equipment and substantial surgical experience are required. The aim of the study is to compare the short-term surgical outcomes of LRH and open right hemi...

To determine the relationship between preoperative serum albumin and postoperative bowel function as well as surgical outcomes in right-sided colon cancer patients. This retrospective study in a university hospital included 84 patients who underwent elective right hemicolectomy for adenocarcinoma of the right-sided colon between January 2004 and De...

The purpose of our study was to evaluate the short-term and long-term outcomes of emergency Lichtenstein tension-free hernioplasty for acutely incarcerated inguinal hernia. We conducted a retrospective study of patients who underwent emergency Lichtenstein hernioplasty for acutely incarcerated inguinal hernia between September 2002 and January 2006...