Biomedical subjects

Chadin Tharavej

Publications and source records attributed to Chadin Tharavej.

5 recordsLinked to original sources

PubMed2005

Comparison of the clinical and histological characteristics and survival of distal esophageal-gastroesophageal junction adenocarcinoma in patients with and without barrett mucosa.

BACKGROUND: The incidence of adenocarcinoma in the distal esophagus and at the gastroesophageal junction (GEJ) has been increasing in the last decades. It has been suggested that patients in whom Barrett mucosa can be identified in the surgical specimen have a better prognosis compared with those without. This has led to the belief that patients with and without Barrett mucosa may represent 2 distinct cancer types. HYPOTHESIS: Distal esophageal-GEJ adenocarcinoma with and without Barrett mucosa share the same origin, but differ only in clinical presentation and outcome. DESIGN AND SETTING: Retrospective cohort study in a university tertiary referral center. PATIENTS AND METHODS: Between 1992 and 2002, 215 patients (173 men and 42 women; median age, 66 years; age range, 26-91 years) had esophagogastrectomy for adenocarcinoma of the distal esophagus-GEJ. Patients receiving neoadjuvant chemotherapy or radiation therapy were excluded. MAIN OUTCOME MEASURES: Clinical presentation, tumor characteristics, and survival were compared in patients with Barrett mucosa (n = 140) and those without (n = 75). RESULTS: Patients with Barrett mucosa in the specimen had tumors that were diagnosed earlier; were smaller in size; earlier in stage, with fewer node metastases; and had a better 5-year survival. CONCLUSIONS: Observed differences in survival between patients with distal esophageal-GEJ adenocarcinoma with and without Barrett mucosa can be explained by earlier diagnosis. Patients without Barrett mucosa have their tumors detected later, when the disease is more advanced. This suggests the possibility that tumors without Barrett mucosa are not of a different origin, but rather are larger tumors that may have overgrown areas of Barrett mucosa.

Adenocarcinoma↗

PubMed2004

Bilateral pheochromocytoma during pregnancy.

BACKGROUND: Pheochromocytoma is a rare disease of the chromaffin cells that secrete catecholamines. It may occur during pregnancy. Bilateral pheochromocytoma in pregnancy is even rarer. CASE: A 26-year-old woman, gravida 2, para 0-0-1-0, 18 weeks' pregnancy, was initially seen with elevated blood pressure (170/100 mmHg) and mild headache. The cause of hypertension was conventionally investigated and bilateral pheochromocytoma was finally searched for and found. Bilateral adrenalectomy was undertaken at 23 weeks' gestation and Cesarean section was performed at 31 weeks' gestation due to intrauterine growth retardation (IUGR) and compromised fetal well-being. The maternal outcome was uneventful and the baby was physiologically complicated only by neonatal jaundice. CONCLUSION: Pheochromocytoma should be searched for in the conventionally differential diagnosis in hypertension during pregnancy, especially in the young. Early diagnosis and proper management with medical treatment followed by surgical removal of the tumor usually result in good maternal and fetal outcomes.

Adrenal Gland Neoplasms↗

PubMed2004

Endoscopic transaxillary thyroid lobectomy: flexible vs rigid laparoscope.

BACKGROUND: The use of the endoscopic procedure for thyroid lobectomy in benign solitary thyroid nodule has been developed rapidly and increasingly refined in recent years. The early results are technically feasible, safe and mainly provide promising cosmetic results, some show a quicker recovery. The authors wanted to know if this procedure can be performed via rigid laparoscope which is simple, less expensive and widely available in many surgical centers. OBJECTIVES: The aims of this study were to evaluate operative time, blood loss, complication of flexible compared to 30 degrees rigid laparoscope in endoscopic transaxillary thyroid lobectomy for solitary thyroid nodule. METHOD: From February 2004 to June 2004, 13 cases of benign solitary thyroid nodule underwent the endoscopic transaxillary thyroid lobectomy. Flexible laparoscope techniques were performed in 9 cases and 30 degrees rigid laparoscope in the other 4 cases. Port site, number of ports and dissected method were the same in both procedures by the same surgeon. Operative time, blood loss, post-operative results were measured for evaluation. RESULTS: From 13 cases, 9 in the flexible laparoscope group and 4 in the rigid laparoscope group. All but one in the flexible group with torn internal jugular vein were successful. The mean operation time was 165.42 +/- 35.06 minutes, which was 175.63 +/- 35.70 minutes for flexible laparoscope group and 145 +/- 26.45 minutes for rigid laparoscope group. There was no recurrent laryngeal nerve injury and no subcutaneous emphysema. The patients were satisfied with the cosmetic results. CONCLUSION: On the basis of early experience with these 13 patients, the authors believe that endoscopic thyroidectomy using the rigid laparoscope has proved to be no different in the intra-operative results, so the authors do aimed to show that with the rigid laparoscope which is available in many surgical centers, less expensive and easy in maintenance will provide another surgical option for treatment of thyroid nodule, with maximized cosmetic effect.

Adult↗

PubMed2002

A multidisciplinary approach in the management of hepatic injuries.

We reviewed 87 patients with hepatic injuries who were admitted to King Chulalongkorn Memorial Hospital, Bangkok, Thailand, from January 1995 to December 1999; 76% of them had sustained blunt trauma and 24% penetrating trauma. Their injury severity scores (ISS) ranged from 4 to 57 (mean 20.94+/-12.8); 50% of them were in shock on arrival; 8.1, 28.7, 25.3, 19.5, and 18.4% suffered from hepatic injuries graded I, II, III, IV, and V, respectively. Seventeen patients (19.5%) were successfully managed non-operatively; three of them underwent hepatic angiography, which in two revealed leakage of contrast medium from the right hepatic artery; both were successfully treated by embolization. One patient had bile leakage and collection, which was successfully treated by ultrasound-guided percutaneous drainage. Seventy patients (80.5%) underwent exploratory laparotomy; nine of them died in the operating room. Of the remaining 61 who left the operating room alive, 21 had perihepatic packing, which was frequently used in those with injuries to segments V, VI, VII, and VIII (Couinaud's nomenclature). Eight patients who had packing and one who had not died in the postoperative period. Two patients who had packing underwent subsequent hepatic angiography with embolization before successful pack removal. The overall mortality was 20.7%. The mortality in complex hepatic injuries (grades IV and V) was 13 out of 33 (39.4%). We believe that non-operative management should be considered in haemodynamically stable patients. Angiography with embolization is invaluable in improving outcome in both non-operative and operative patients. Perihepatic packing is life-saving in complex hepatic injuries that cannot be effectively treated by simple surgical procedures. Finally, ultrasound- or CT-guided percutaneous drainage of bile leakage or collections spared a number of patients from open and complicated surgery.

Adolescent↗

PubMed2002

Pelvic fractures: experience in management of 170 cases at a university hospital in Thailand.

UNLABELLED: BACKGROUND, OBJECTIVE AND METHOD: Management of patients with pelvic fractures requires a multidisciplinary team approach. Currently, survival has been dramatically improved but some controversies still remain. The purpose of this study was to examine management and results of treatment of patients with pelvic fractures who were admitted to the Trauma Unit, King Chulalongkorn Memorial Hospital, Bangkok, Thailand from January 1991 to December 2000. RESULTS: There were 170 patients in the study. The age ranged from 15 to 91 years (mean 33.89 +/- 16.14). The most common cause of injuries was motorcycle accidents (50.0%). There were 27 (15.9%), 47 (27.6%), 80 (47.1%) and 16 (9.4%) patients with Type I, II, III and IV pelvic fractures, respectively. Forty per cent of patients were in shock when they first arrived at the emergency room. Seventy two patients (42.4%) had 274 associated injuries. Sixteen patients (9.4%) had open pelvic fractures. The Injury Severity Score (ISS) ranged from 4 to 75 (mean 17.55 +/- 12.86). Eighty two patients (48.2%) received blood transfusion from 1 to 40 units (mean 10.04 +/- 8.47). Sixteen patients (9.4%) underwent pelvic angiography, 10 bleeding points were demonstrated and successfully treated by transcatheter embolization. One hundred and thirty two patients (77.6%) received no specific treatment for the pelvic fractures. The remainder (22.4%) were treated with pelvic sling in 6 patients (3.5%), skeletal traction in 21 patients (12.4%), external fixation in 6 patients (3.5%), internal fixation in 4 patients (2.4%), and right hemipelvectomy in 1 patient (0.6%). Fifteen patients (8.8%) died. Causes of death were exsanguination in 6 patients (40% of death), severe head injuries in 6 patients (40% of death) and sepsis with multisystem organ failure in 3 patients (20% of death). Nonsurvivors had a significantly higher ISS and units of blood transfusion than survivors (P < 0.001). The hospital stay ranged from 1 to 300 days (mean 24.7 +/- 34.19). CONCLUSION: Approximately 75 per cent of patients in our study had major pelvic fractures (Type II and Type III pelvic fractures). The majority of bleeding from pelvic fractures could be treated conservatively. Angiography with transcatheter embolization was extremely helpful when conservative treatment failed to stop pelvic bleeding. External fixation for early control of bleeding pelvic fractures was infrequently employed.

Adolescent↗