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[Postprandial plasma secretin concentration and luminal pH in patients with gastrectomy].

The plasma secretin concentration in response to a meat meal and luminal pH were investigated in patients with gastrectomy: total gastrectomy with Roux-Y anastomosis or interposed jejunal anastomosis and partial gastrectomy with Billroth I or Billroth II anastomosis. The fasting plasma secretin concentration was significantly elevated in relation to the decreases of duodenal pH in postprandial state in normal subjects. No significant response of the plasma secretin and jejunal pH were observed in patients with total gastrectomy with Roux-Y anastomosis, however total gastrectomized patients with jejunal interposition showed the peak plasma secretin response in postprandial state. In patients with Billroth I the postprandial plasma secretin concentrations were well responded when the duodenal pH was below 4.5, however it was less than that of normal subjects. In patients with Billroth II the response of plasma secretin was much less than that of Billroth I, even though the decrease of jejunal pH was as comparable as in Billroth I. These studies suggest that a Billroth I operation after subtotal gastrectomy and interposed jejunal anastomosis after total gastrectomy are better procedures than the Billroth II or Roux-Y anastomoses to obtain endogenous secretin release.

Adult↗

Role of occult blood loss in anaemia after partial gastrectomy.

The present investigation is a study of occult gastrointestinal blood loss in 20 anaemic postgastrectomy patients and 14 control subjects. One patient in the postgastrectomy group was found to be bleeding from undetected haemorrhoids. One patient in each group showed sensitivity to aspirin with greatly increased occult blood loss. The mean blood loss in 18 postgastrectomy patients with unexplained anaemia was 0.6 +/- 0.5 ml/day compared with 0.5 +/- 0.5 ml/day in 13 control subjects. Only two of the 19 anaemic postgastrectomy patients studied lost more than 2 ml blood/day. Aspirin blood loss in 18 postgastrectomy patients was 2.4 +/- 2.1 ml/day, compared with 2.6 +/- 2.7 ml/day in 13 controls. The pattern of aspirin blood loss is identical in both groups. All gastric biopsies obtained from nine patients with Polya gastrectomies showed changes of gastritis; some showed complete gastric atrophy and intestinal metaplasia. Occult gastrointestinal bleeding is not an important factor in the pathogenesis of anaemia after partial gastrectomy unless there is either stomal ulceration or a lesion completely unrelated to the partial gastrectomy. If occult bleeding is present after partial gastrectomy a careful search for the site of bleeding is indicated. Excessive intake of aspirin or increased sensitivity to aspirin was not shown to be a significant factor in the pathogenesis of the anaemia in this group of patients. However, because of the inability to augment iron absorption to compensate for blood loss, it would be inadvisable for the patient with a partial gastrectomy to take a high dosage of aspirin for long periods of time, unless aspirin-induced blood loss is measured and shown to be very low. Aspirin administered in low dosage is not contraindicated after partial gastrectomy.

Adult↗

Nasojejunal tube placement after total gastrectomy: a multicenter prospective randomized trial.

HYPOTHESIS: Anastomotic disruption of the Roux-en-Y esophagojejunostomy after total gastrectomy is an infrequent complication that may lead to severe morbidity and mortality. Consequently, a nasojejunal tube (NJT) is frequently placed when this operation is performed. However, no studies have compared routine vs no placement of an NJT in patients undergoing total gastrectomy for gastric cancer, to our knowledge. DESIGN: Randomized controlled trial to assess the need for routine nasojejunal decompression after total gastrectomy with Roux-en-Y esophagojejunostomy in patients with gastric cancer. SETTING: Tertiary care centers. PATIENTS: Two hundred thirty-seven patients undergoing total gastrectomy for gastric cancer were randomly assigned to NJT placement (NJT group) or not (no-NJT group). The patients were monitored for postoperative complications, mortality, and postoperative course. MAIN OUTCOME MEASURES: Incidence of esophagojejunostomy leak. RESULTS: The rates of anastomotic leak were similar in both groups (6.9% and 5.8% for the NJT group and no-NJT group, respectively; P = .71), as were the rates of major postoperative complications (25.9% and 21.5%, respectively; P = .42) and overall postoperative mortality (0.9% and 0.8%, respectively; P = .50). There were no differences between the 2 groups in the mean+/-SD time to passage of flatus (4.6 +/- 1.3 and 4.5 +/- 1.7 days, respectively) or to starting a liquid diet (7.8 +/- 2.6 and 7.7 +/- 1.6 days, respectively), postoperative length of hospital stay (13.5 +/- 7.3 and 13.9 +/- 10.9 days, respectively), postoperative pain, or postoperative abdominal distention. CONCLUSION: Routine placement of an NJT after Roux-en-Y esophagojejunostomy is unnecessary in elective total gastrectomy for gastric cancer.

Anastomosis, Roux-en-Y↗

Germline E-cadherin gene mutations: is prophylactic total gastrectomy indicated?

BACKGROUND: The CDH1 gene encodes E-cadherin, an epithelial cell adhesion molecule. Germline CDH1 mutations recently were identified in families with hereditary diffuse gastric carcinoma in a pattern suggestive of autosomal dominant inheritance with incomplete penetrance. METHODS: The proband was a woman age 47 years with a strong family history of diffuse gastric carcinoma. A germline E-cadherin gene mutation was identified in this patient, her brother, and three first cousins. All five family members underwent endoscopic evaluations, which were negative for malignancy, and elected to undergo a prophylactic total gastrectomy with Roux-en-Y esophagojejunostomy. RESULTS: Pathologic examination of the proband's stomach revealed several microscopic foci of intramucosal signet ring cell adenocarcinoma in the cardia and proximal gastric body. Postgastrectomy specimens from the proband's brother and three first cousins all showed intramucosal signet ring cell adenocarcinoma in various regions of the stomach. Immunoperoxidase studies performed on gastric tissue from these five patients demonstrated diminished or absent E-cadherin reactivity in the cancerous mucosa. CONCLUSIONS: Although total gastrectomy was performed as a prophylactic intervention, occult gastric carcinoma was discovered in all five patients. Thus, total gastrectomy should be curative for gastric carcinoma in these patients. Based on their successful outcomes and the lack of efficacious surveillance methods for diffuse gastric carcinoma, prophylactic total gastrectomy may be the management of choice for germline E-cadherin gene mutation carriers. However, prophylactic total gastrectomy should be undertaken cautiously because the procedure may be associated with considerable morbidity.

Adult↗

Effect of postoperative total parenteral nutrition (TPN) as an adjunct to gastrectomy for advanced gastric carcinoma.

Clinical staging and immune reactivity were correlated in 39 patients who underwent gastrectomy for primary gastric cancer. Cellular immunity was depressed as the stage of cancer advanced, whereas humoral immunity was unaffected. Gastrectomy for advanced cancer in stage 3 and 4 suppressed cellular immunity. The cellular and humoral immune systems in relation to total parenteral nutrition (TPN) versus non-TPN were evaluated in 57 patients who underwent gastrectomy for stage 3 and 4 advanced cancer. Cell-mediated immunocompetence was restored in all 29 patients who received postoperative TPN, while serum immunoglobulins were unaffected by TPN. Improvement of impaired cell-mediated immunity was also obtained in patients treated with a TPN-5-FU combination as an adjunct to surgery. Treatment with TPN during 5-FU administration restored immunocompetence, increased tolerance for 5-FU and gave a satisfactory 3-year survival rate. There were significant differences in the 3-year survival rates of patients who underwent non-curative gastrectomy (54 per cent for TPN-5-FU v. 0 per cent for non-TPN-5-FU; P less than 0.05). It is concluded that TPN during chemotherapy as an adjunct to surgery leads to diminished morbidity, and possibly to prolonged survival time, in patients undergoing gastrectomy for gastric cancer. A possible mechanism responsible for the gratifying results of TPN treatment may be the increased tolerance for 5-FU resulting from improved nutrition and increased cell-mediated immunity.

Adult↗

Cholelithiasis: a serious complication after total gastrectomy.

To establish the incidence of cholelithiasis after total gastrectomy, patients operated on between 1979 and 1985 were reviewed. The study group consisted of 30 patients, all free of gallstones at the time of their gastrectomy. The median age of the patients was 56 years, the average follow-up 40 months. Cholelithiasis developed in 47 per cent of patients (14/30) and always within 2 years of total gastrectomy. The incidence of cholelithiasis was not related significantly to the sex or age of the patients. Morbidity from cholelithiasis was not negligible. Three of the fourteen patients presenting with gallstones required medical treatment in hospital and later came to cholecystectomy because of specific biliary symptoms. Cholelithiasis appears to be a significant complication after total gastrectomy. It may be related to the vagotomy which is performed at the time of gastrectomy.

Adult↗

Metabolic bone disease following gastrectomy: assessment by dual energy X-ray absorptiometry.

Although disorders in bone metabolism have long been recognized as typical sequelae of gastrectomy, there has until now been no reliable method of providing precise assessment of bone mass, resulting in a variation of reported incidence. In this study, metabolic bone disease was evaluated in a well characterized population: 34 men 2-5 years after gastrectomy; 11 men 6-10 years after gastrectomy; eight men 2-5 years after colonic resection; and 115 healthy men. The age range was 50-69 years. An innovative reliable method of dual energy X-ray absorptiometry was used which allows quantitative assessment of bone mineral content. Measurement of lumbar spine bone mineral density revealed that the mean(s.e.m.) bone mineral density in patients who had had a gastrectomy (2-5 years 0.84(0.03) g/cm2, 6-10 years 0.85(0.05) g/cm2) was significantly lower than that of patients who had undergone colonic resection (0.96(0.04) g/cm2) or healthy men (0.96(0.03) g/cm2). This study demonstrates that a high incidence of bone atrophy is induced at the relatively early period of 2-5 years after gastrectomy.

Absorptiometry, Photon↗

Food intake after gastrectomy for gastric carcinoma: the role of a gastric reservoir.

Patients with carcinoma of the stomach who underwent curative resection were randomized to total gastrectomy (n = 49), total gastrectomy and an S-shaped gastric substitute (n = 28) or subtotal gastrectomy (n = 12); all had a Roux-en-Y reconstruction. The gastric substitute and gastric remnant allowed a volume of 400-500 ml to be installed without increments in basal pressures. The corresponding volume in the Roux limb was 100 ml. Energy intake was approximately 120 kJ/kg preoperative weight per day 3 months after operation, and then remained constant. Patients who had subtotal gastrectomy ate less (91.7 kJ/kg preoperative weight) 3 months after operation, but thereafter increased their intake. Patients allocated to have a gastric pouch or subtotal gastrectomy complained more frequently of adverse postprandial symptoms (P < 0.03) as a major cause of reduced calorie intake. The construction of a gastric reservoir did not improve nutritional adaptation after surgery for gastric carcinoma.

Adult↗

Comparison of laparoscopy-assisted by conventional open distal gastrectomy and extraperigastric lymph node dissection in early gastric cancer.

BACKGROUND AND OBJECTIVES: Laparoscopy-assisted gastrectomy with lymph node dissection for gastric cancer is considered technically more complicated than the open method. Moreover, the safety and efficacy of laparoscopy-assisted distal gastrectomy (LADG) with extraperigastric lymph node dissection in patients with gastric cancer have not been established yet. To evaluate short-term surgical validity, surgical outcome of the laparoscopy-assisted distal gastrectomy (LADG) with extraperigastric lymph node dissection was compared with that of the conventional open distal gastrectomy (CODG) in patients with early gastric cancer. METHODS: One hundred and forty-seven patients with early gastric cancer received radical distal gastrectomy during 2002 and 2003, where LADG was undergone in 71 patients. The clinicopathologic characteristics, postoperative outcomes and courses, and postoperative morbidities and mortalities were compared between the two groups. Data were retrieved from the stomach cancer database at Dong-A University Medical center. RESULTS: Baseline characteristics, including sex, age, body mass index (BMI), American Society of Anesthesiology (ASA) class, tumor size, T stage, and lymph node metastasis were similar between the two groups. No significant differences were found between these groups in terms of the number of retrieved lymph nodes with respect to D1 + alpha (D1 + no. 7) and D1 + beta (D1 + no. 7, 8a, and 9) lymphadenectomy. In the LADG group, wound size was smaller (P < 0.0001), but operation time was longer (P = 0.0001) than in the CODG group. Perioperative recovery was faster in the LADG group than in the CODG group, as reflected by a shorter hospital stay (P = 0.0176) and less times of additional analgesics (P = 0.0370). Serum albumin level in LADG was higher (P = 0.0002) on day 7 than that in CODG, and the leukocyte count in LADG lower (P = 0.0445) on day 1 than that in CODG. Postoperative morbidities and mortalities were not significantly different between the two groups. CONCLUSIONS: Our data confirmed that LADG with extraperigastric (no. 7, 8, and 9) lymph node dissection proved to be feasible and acceptable surgical technique for early gastric cancer. At least taking a surgical point of view, LADG with extraperigastric lymph node dissection is suggested to be a preferred surgical option for patients with early gastric cancer. Its oncologic validity awaits larger and prospective multicenter trials.

Aged↗

Proximal gastrectomy as the surgical procedure of choice for upper gastric carcinoma.

To assess the efficacy of proximal gastrectomy in the treatment of upper gastric carcinoma, we analyzed clinical data from patients with lesions confined to the upper third of the stomach (group 1) and from patients with lesions which, while primarily located in the upper portion of the stomach, showed spread to the body of the stomach (group 2). Patients in group 2 showed more metastatic lymph node involvement, particularly of the infrapyloric lymph nodes, which were not included in lymphadenectomy accompanying proximal gastrectomy. None of the group 1 patients demonstrated metastasis to the infrapyloric lymph nodes. The postoperative 5-year survival rate in curatively operated group 1 patients was not significantly different between those treated by proximal gastrectomy and those subjected to total gastrectomy. We conclude that proximal gastrectomy is indicated in patients with upper gastric carcinoma when it is confined to the upper third of the stomach.

Gastrectomy↗

Total gastrectomy for early gastric cancer.

A total gastrectomy was performed in 49 patients with early gastric cancer, and the effectiveness of this procedure was evaluated by reviewing the hospital files of the patients. The reasons for this total gastrectomy were as follows: (1) lymph node dissection for 22 patients, (2) surgeon's choice in reconstruction for 10 patients, (3) modification of the surgery from subtotal to total gastrectomy for seven patients, (4) synchronous multiple cancers for seven patients, and (5) cancer in a stomach remnant for three patients. Of 49 patients, 42 had the cancerous lesions in the upper portion of their stomachs. Lymph node involvement occurred in 5 patients, but not in the supra- or infrapyloric lymph nodes. Postoperative complications such as anastomotic leakage, reflux esophagitis and pancreatic fistula occurred in five, four, and two patients, respectively. Postoperative death, including two patients who died within 30 days after the surgery, occurred in 5 patients. Our study showed that total gastrectomy resulted in excessive unnecessary surgery in 39 out of 49 patients (79.6%). We conclude that a total gastrectomy should not be performed on patients with early gastric cancer except for synchronous multiple cancers and for cancers in a stomach remnant.

Anastomosis, Roux-en-Y↗

Surgical treatment of gastric cancer: retrospective survey of 1,704 operated cases with special reference to total gastrectomy as the operation of choice.

Total gastrectomy is discussed as the operation of choice among different surgical approaches for gastric carcinoma. We prefer the performance of an elective total gastrectomy with systematic lymphadenectomy (compartments I and II) and obligatory splenectomy. A retrospective study of 1,704 consecutive cases of gastric carcinomas showed a better outcome following total gastrectomy in relationship to distal subtotal gastrectomy, but these results cannot be used as evidence because of the lack of a prospective study. Nevertheless, a precise analysis of our cases in regard to tumor site and tumor type could show a frequency of only 6% to maximally 30%, in which elective total gastrectomy may represent a procedure too extensive to justify for an oncological course.

Female↗

Squamous cell carcinoma of the esophagus after partial gastrectomy.

Twelve patients (10.4%) had a history of partial gastrectomy among the 115 patients with squamous cell carcinoma of the esophagus. The clinical characteristics, nutritional parameters, and incidences of esophagitis of the resected specimens were investigated between 11 patients with esophageal carcinoma who had partial gastrectomy for peptic ulcer diseases (Group A) and 103 patients with esophageal carcinoma without any previous history of gastrectomy (Group B). Age, sex, tumor location, clinical stages, and cigarette and alcohol consumption were not different between the two groups. Hemoglobin, mean corpuscular volume, and mean corpuscular hemoglobin level in Group A were lower than those in Group B (p < 0.05). Serum zinc level in Group A was lower than that in Group B, but this difference was not significant. There was no difference in the incidences of esophagitis between the two groups. In conclusion, there is an association between partial gastrectomy and later development of squamous esophageal carcinoma. The role of malnutritional factors and gastroesophageal reflux, however, remain unclear. The long-term follow-up of patients after partial gastrectomy is warranted.

Aged↗

Preservation of the lower esophageal sphincter during total gastrectomy for gastric cancer to prevent postoperative reflux esophagitis.

The lower esophageal sphincter (LES) is usually removed during total gastrectomy to successfully perform a curative operation. In this study, the preservation of the LES in curative total gastrectomy was attempted to reduce the reflux. An experimental study using dogs has revealed that the high-pressure zone of the LES can be preserved by making a resection at the gastroesophageal junction, which thus helps to protect the reflux. A previous clinicopathological study revealed that the LES can be preserved without any fear of recurrence at the resection site, if the tumor is located more than 2.0 cm and 3.0 cm from the gastroesophageal junction to the oral margin in node-negative and -positive cases, respectively. Clinically, 8 patients underwent an LES-preserving total gastrectomy [LES(+) gastrectomy] while 19 had an LES(-) gastrectomy in the same period. Of the five LES(+) cases examined, all showed a high pressure zone, whereas none of the four LES(-) cases examined showed such a high-pressure zone after the operation. Endoscopic examination showed that only one of the seven LES(+) cases but six of nine LES(-) cases revealed esophagitis.

Anastomosis, Surgical↗

Bone disorder following partial and total gastrectomy with reference to bone mineral content.

To study post-gastrectomy metabolic bone disorders, we measured the radial bone mineral content (BMC), serum levels of calcium, inorganic phosphorus, alkaline phosphatase, and 25-hydroxyvitamin D(25-OH-D) in 59 patients with partial- and 39 patients with total gastrectomy. Total gastrectomy patients manifested a higher incidence of decreased BMC levels than did partial gastrectomy patients (56 per cent vs. 25 per cent). Patients subjected to the Billroth II procedure, especially females, manifested abnormally low BMC values. The decline in BMC was age-related; it was pronounced in females. At 10 years postoperatively, many of the partial gastrectomy patients manifested markedly low BMC levels; in totally gastrectomized patients this finding was made at less than 5 years postoperatively. Approximately 30 per cent of our patients showed abnormalities in serum minerals, alkaline phosphatase or 25-OH-D.

Alkaline Phosphatase↗

Osteoporosis after gastrectomy: bone mineral density of lumbar spine assessed by dual-energy X-ray absorptiometry.

Although osteoporosis is a common clinical disorder associated with gastric surgery, long-term effects of gastrectomy on bone metabolism are still unclear. The purpose of this study was to clarify the incidence and risk factors of osteoporosis after gastrectomy using univariate and multivariate analyses of quantitative measurements. The study included 59 patients who had undergone gastrectomy more than 5 years before. There were 38 men and 21 women, aged 37-81 years, mean 64 years. Bone mineral density (BMD) of L2-L4 spine was measured using dual-energy X-ray absorptiometry (DXA). Absolute value of BMD (g/cm2) and age- and sex-matched BMD (%) were given. The mean BMD was 0.766 g/cm2, and the incidence of osteoporosis (BMD less than 0.70 g/cm2) was 37%: 18% in men and 71% in women. The mean age- and sex-matched BMD was 85.9%: 87.5% in men and 83.1% in women. Univariate and multivariate analyses revealed that BMD was significantly associated with the age and sex of patients, but was not influenced by the type of gastrectomy (partial versus total) and years after operation (< 20 versus 20 <). Our study clarified the fact that postgastrectomy osteoporosis was frequent in the aged or female patients. BMD should be evaluated after gastrectomy, especially in the aged and in women.

Absorptiometry, Photon↗

Higher morbidity and mortality after combined total gastrectomy and pancreaticosplenectomy for gastric cancer.

Total gastrectomy with pancreaticosplenectomy for gastric cancer has been proposed for facilitating lymph node dissection or for resection of direct tumor invasion to the pancreas, especially for T4 lesions. Its effectiveness in improving patient survival is still controversial, and higher morbidity and mortality with this procedure have been reported in several series. Such risks to patient survival were not observed in the Japanese series. Based on a prospective gastric cancer database maintained from 1987 to 1999 in our institution, the morbidity and mortality were analyzed in our series of pancreaticosplenectomies. A total of 1,278 patients with gastric cancer received gastrectomy in our surgical unit. Of these, 127 patients underwent curative total gastrectomy with pancreaticosplenectomy in order to facilitate lymph node dissection or removal of direct tumor invasion. Operative time, postoperative hospital stay, postoperative complications, and surgical mortality were analyzed. Compared to another 201 total gastrectomies, longer mean operative time (7.91 +/- 2.16 hours vs. 6.67 +/- 2.01, p <0.001) and postoperative hospital stay (median, 24.5 days vs. 17, p <0.001) for combined organ resection (pancreaticosplenectomy) were shown in this series. The major complication rate, including intraabdominal abscess, anastomotic leak, postoperative bleeding, pancreatitis/fistula, chylous leak, and general complications causing unstable vital signs (26.8% vs. 11.9%, p = 0.001), but not the mortality rate (6.3% vs. 4.8%, p = 0.608), was also shown to be higher in pancreaticosplenectomy patients. The most frequent fatal complication was intraabdominal abscess. However, more than 50% of complications occurred in the first 40 pancreaticosplenectomies (1987-1991); after adequate accumulation of experience, the total complication rate (57.5% vs. 35.6%, p = 0.021), major complication rate (40% vs. 20.7%, p = 0.022), and mortality rate (17.5% vs. 1.1%, p = 0.001) improved significantly in the remaining 87 patients (1991-1999). We therefore conclude that total gastrectomy with pancreaticosplenectomy can be performed by experienced surgeons with acceptable risk of morbidity and mortality.

Aged↗

Respiratory function after laparoscopic distal gastrectomy--an index of minimally invasive surgery.

BACKGROUND: As the techniques of laparoscopic surgery have improved, various institutions have performed laparoscopic gastrectomies with regional lymph node dissection, as well as open surgery. Although alleviation of postoperative pain and prompt recovery have been reported in the literature, objective indexes of the minimal invasiveness of laparoscopic procedures are as yet very few. METHODS: We performed distal gastrectomy with regional lymph node dissection for gastric cancer patients using three kinds of procedures, namely, open gastrectomy, hand-assisted laparoscopic surgery (HALS), and totally laparoscopic gastrectomy. Ablation of the stomach, lymph node dissection, and reconstruction of the digestive tract were all carried out intracorporeally with or without HALS in the laparoscopic procedures. The ordinary respiratory function test was performed pre- and postoperatively for 50 patients operated on by each procedure, and the reduced percentages of the measured values were calculated. RESULTS: Postoperative respiratory function was consistently excellent, with minimal loss of vital capacity and forced expiratory volume per second in the totally laparoscopic group compared to HALS or open cases. CONCLUSIONS: Although it may be a complicated technique, totally laparoscopic distal gastrectomy is considered a minimally invasive procedure for gastric cancer from the viewpoint of postoperative respiratory function.

Chi-Square Distribution↗