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Biomedical subjects

P Wind

Publications and source records attributed to P Wind.

At least 19 recordsLinked to original sources
PubMed2005

[Diaphragmatic hernia in a rare complication of oesophagectomy for cancer].

INTRODUCTION: Diaphragmatic hernia is a rare complication of oesophagectomy for cancer. We report a series of seven patients to determine characteristics of this entity. PATIENTS AND METHODS: Seven patients (six male and one female, 61 to 68 years old) were operated on for diaphragmatic hernia following oesophagectomy for carcinoma (adenocarcinoma N =4, squamous-cell carcinoma N =3). Oesophagectomy had been performed through abdominal transhiatal approach in four patients and transthoracically in three, with hiatal enlargement in all cases. RESULTS: Three patients, all symptomatic, underwent emergency surgery within two years following oesophagectomy. Of the four patients operated between two and seven years after oesophagectomy, two were symptomatic. Presence of symptoms were neither related with technique of oesophagectomy, nor to type of hiatal enlargement (anterior, or by crura division). All patients with hernia containing small bowel were symptomatic. All patients were operated through abdominal approach. Hernia contained colon three times, small bowel once, and both three times. Hernia reduction needed additional phrenotomy in six patients. Two patients underwent colectomy to treat peroperative colonic ischemia. Diaphragmatic hiatus was calibrated around the gastric tube by direct suture in six patients or with absorbable mesh in one. There was no death. No recurrences occurred with a follow up ranging from one to five years. CONCLUSION: The diaphragmatic hernia after oesophagectomy is due to excessive hiatal enlargement. Hernias occurring early after oesophagectomy are badly tolerated and need urgent reoperation. To prevent this complication of oesophagectomy, we advocate calibration of diaphragmatic hiatus fit to width of gastroplasty.

Adenocarcinoma↗
PubMed2005

[Digestive surgery and varicose vein surgery].

The thromboembolic risk related to surgery may be considered as low for varicose vein surgery and non major digestive surgery. It could be defined as moderate in case of large dissection, long duration of procedures and emergency cases. The risk may be considered as high for major abdominal surgery involving cancer surgery or not and bariatric surgery. The absence of prophylaxis can be proposed for low risk surgery (grade B). However, elastic compression stocking are effective for all cases of digestive surgery and suggested to be used (grade A). There are no data concerning the moderate risk situation. Therefore, experts recommend the use of elastic compression stockings or low doses of LMWH (grade D). High-risk surgery requires the use of high doses of LMWH recommended for reasons of efficacy, tolerance, and easiness to use (grade A). Associated elastic stockings is efficious (grade B). The duration of prophylaxis lasts generally 7-10 days. Extension to 1 month is recommended for major abdominal cancer surgery (grade A).

Ambulatory Surgical Procedures↗
PubMed2005

Impact of EGFR expression on colorectal cancer patient prognosis and survival.

BACKGROUND: Epidermal growth factor receptor (EGFR) is overexpressed in many types of cancers, especially colorectal cancer (CRC), and seems to reflect more aggressive histological and clinical behaviors. The aim of this study was to evaluate EGFR immunohistochemical reactivity in CRC biopsies, and to analyze its relationship with various histological and clinical characteristics and survival. PATIENTS AND METHODS: A composite EGFR score, obtained by multiplying the grade (% positive cells) by the intensity of labeling (0-9) was used to define patients with low or high EGFR expression whose clinicopathological features were then compared. Univariate tests and multivariate Cox proportional hazards model were applied for data analysis. RESULTS: Tissue sections from 150 CRC patients with a median follow-up of 40 months were examined. Median patient age at diagnosis was 70 years (range 38-89 years). EGFR reactivity was positive for 143 patients (97%) and high for 118 (80%). According to multivariate analysis, EGFR overexpression was significantly associated with tumor stage, with a higher percentage of EGFR overexpression in T3 than T4 (P=0.003) and not with overall survival. CONCLUSIONS: EGFR was overexpressed in this CRC patient population and was significantly associated with TNM (tumor-node-metastasis) stage T3. In the context of a new therapeutic strategy using EGFR-targeted therapies, although EGFR remains a controversial prognostic factor, this expression-stage association may play a crucial role in a decision to initiate an adjuvant treatment.

Adult↗
PubMed2001

[Esophagectomy for squamous cell carcinoma of the esophagus isolated or associated with head and neck cancer: long-term survival].

STUDY AIM: Esophageal squamous cell carcinomas are frequently associated with head and neck cancers. This retrospective study was conducted to compare the long-term outcome of the patients with a double cancer and of the patients with a solitary esophageal cancer after curative management. PATIENTS AND METHODS: From 1989 to 1999, 114 patients with an esophageal carcinoma were included in the study. Among them, 52 had an associated head and neck cancer (metachronous: n = 17 and synchronous: n = 35). Curative treatment was achieved in all patients. The patients were divided in "solitary" and "associated" group. RESULTS: Age, sex distribution, tumor location and histological findings were similar in the two groups. The esophageal resection was an esopharyngolaryngectomy (n = 13), a subtotal esophagectomy with cervical anastomosis (n = 92) and a Lewis-Santy esophagectomy with thoracic anastomosis (n = 9). Operative mortality (8 versus 7.7%), anastomotic leaks rate (14.5 versus 21%) and pneumonia rate (21 versus 9.6%) were not significantly different in the two groups. The mean hospital stay was 27 days. The mean follow-up was 85 +/- 50 months. Five-year survival rates were not significantly different in the two groups (p = 0.6411). In univariate survival analysis the only significant predictive factors were the depth of esophageal tumor invasion (p = 0.0002) and node involvement (p = 0.0373). The presence of head and neck cancer did not affect survival after esophagectomy. CONCLUSION: With an aggressive therapeutic plan, the survival of patients with an esophageal cancer associated to head and neck cancer was similar to the survival of patients with an isolated esophageal carcinoma. Long term esophageal survey seems to be useful to detect more superficial esophageal carcinomas in patients with head and neck cancer.

Aged↗
PubMed2001

Carcinoembryonic gene member 2 mRNA expression as a marker to detect circulating enterocytes in the blood of colorectal cancer patients.

BACKGROUND: The aim of this study was to report our experience with a new molecular tool to detect circulating enterocytes in the blood of patients with colorectal cancer. METHODS: The study included 193 individuals: 78 patients with colorectal cancer and 115 controls composed of patients with benign colorectal diseases (n = 16), patients with noncolorectal cancer (n = 31), healthy individuals (n = 62), and healthy bone marrow transplantation donors (n = 6). A nested reverse transcriptase-polymerase chain reaction with specific primers for the carcinoembryonic gene member 2 (CGM2) was used to detect circulating enterocytes in the peripheral blood of 78 patients with colorectal cancer. The blood (n = 109) or the bone marrow (n = 6) of the 115 controls was studied to test the absence of CGM2 illegitimate transcription in nucleated blood cells and nucleated blood cell progenitors. The assay sensitivity was effective in detecting 1 CGM2-positive cell per 10(6) nucleated blood cells. RESULTS: Fifty-nine percent (46/78) of patients with colorectal cancer were found positive whereas all negative controls remained negative. Positivity rates were 38% (3/8) in Dukes' A classification, 43% (9/21) in Dukes' B, 77% (23/30) in Dukes' C, and 58% (11/19) in Dukes' D. CONCLUSIONS: The clinical significance of enterocyte detection in the blood of colorectal cancer patients by means of this CGM2 messenger RNA assay needs further evaluation.

Adult↗
PubMed2000

Experience in the treatment of synchronous and metachronous carcinoma of the oesophagus and the head and neck.

BACKGROUND AND OBJECTIVES: Treatment of multiple primary squamous cell carcinomas of the head and neck and oesophagus is controversial. The poor prognosis of these 2 types of carcinoma taken individually and their anatomic proximity complicate the therapeutic strategy and limit the treatment choices for each location. METHODS: From 1986 to 1998, 43 patients received curative treatment for multiple synchronous (n = 30) or metachronous (n = 13) primary neoplasms of the oesophagus and head and neck. For synchronous cancers, the therapeutic strategy consisted of first curing the head and neck cancer and then planning oesophagectomy according to the type of head and neck cancer therapy. RESULTS: Ten total oesopharyngolaryngectomies and 33 subtotal oesophagectomies were performed. The postoperative mortality rate was 9.3% (4/43). The rate of anastomotic leakage was 30% (13/43), and all such leaks were cervical. Pulmonary infection occurred in 19% of cases (8/43). A past history of cervical radiation therapy or cervicotomy did not appear to be a significant risk factor for anastomotic leakage or pulmonary complications. Oesophagectomy did not affect the functional results in the 31 patients whose larynx could be preserved. CONCLUSIONS: Oesophagectomy after head and neck cancer treatment is possible with a low mortality rate and acceptable morbidity.

Aged↗
PubMed2000

Intraoperative enteroscopy for diagnosis and management of unexplained gastrointestinal bleeding.

BACKGROUND: The aim of this study was to evaluate the diagnostic and therapeutic yield of intraoperative enteroscopy in patients with obscure gastrointestinal (GI) bleeding. METHODS: Complete intraoperative enteroscopy was performed in 25 patients with GI bleeding (overt hemorrhage 21, occult blood loss 4). The cause of GI bleeding was unknown before intraoperative enteroscopy in 20 patients and presumed in 5 (colon 4, duodenum 1). RESULTS: Complete inspection of the small bowel was achieved in all cases. Mucosal-based lesions of the small bowel were identified in 16 of the 20 patients in whom the source of bleeding was unknown preoperatively (angiodysplasia 12, other causes 4). These lesions were treated by segmental small bowel resection (15) or medical therapy (1). With a mean 19-month follow-up, the rebleeding rate was 30% (6 of 20), and 2 of them in whom enteroscopy was negative died of massive hemorrhage. Intraoperative enteroscopy was normal in the 5 patients with bleeding of presumed GI origin preoperatively. CONCLUSIONS: Intraoperative enteroscopy remains a valuable tool for exploring obscure GI bleeding in selected patients.

Adult↗
PubMed2000

Outcome after surgical resection of intraductal papillary and mucinous tumors of the pancreas.

OBJECTIVE: Treatment of intraductal papillary and mucinous tumors of pancreas (IPMT) usually requires surgery. The objective of this study was to evaluate the risk of recurrence in patients after surgery according to the histological nature of the neoplasm and the type of surgery. METHODS: The outcome of 45 patients who underwent partial pancreatectomy (n = 35) or total pancreatectomy (n = 10) for IPMT was studied according to the nature of the neoplasm (invasive carcinoma or noninvasive neoplasm), type of surgery (partial or total pancreatectomy), and lymph nodes status. RESULTS: The overall 3-yr actuarial survival rate was 83%. Death occurred in seven of 20 (35%) patients with invasive carcinoma and in one of 26 (4%) patients with noninvasive tumors (p<0.05). There were two recurrences in the seven patients with noninvasive neoplasm who underwent partial pancreatectomy with involved resection margins, and none in the 13 patients with disease-free margins. In patients with invasive carcinoma, there was one recurrence after total pancreatectomy, six after partial pancreatectomy with disease-free margins and six after partial pancreatectomy with involved margins. In patients with invasive carcinoma, total pancreatectomy and the absence of lymph nodes involvement were independently associated with a low risk of recurrence. CONCLUSIONS: IPMT may be managed as follows: 1) in patients with noninvasive neoplasms, partial pancreatic resection should be guided by frozen section examination until disease-free margins are obtained; and 2) in patients with invasive carcinoma, total pancreatectomy seems most likely to cure the patient, but should be discussed according to the general status and the age.

Actuarial Analysis↗
PubMed1999

Anatomy of the common trunk of the middle and left hepatic veins: application to liver transplantation.

An anastomosis between the common trunk of the middle and left hepatic veins of the receiver and the cranial portion of the inferior vena cava of the donor is one of the techniques for restoration of hepato-caval continuity in orthotopic liver transplantation. This technique avoids dissection of the retrohepatic vena cava and total caval clamping. The aim of this study was to define the feasibility of this technique by a morphologic and biometric study of the common trunk of the middle and left hepatic veins on the basis of 64 injection-corrosion hepatic specimens and 21 fresh subjects. A common trunk for the middle and left hepatic veins was present in 54 of 64 cases (84%) with a length of 3 to 17 mm. The diameter of the new ostium constructed by section 0.5 cm proximal to the junction of the middle and left hepatic veins was 23.9 +/- 2.3 mm, which approximated to that of the vena cava where it traversed the diaphragm (24.4 +/- 2.0 mm). These findings confirmed that restoration of hepato-caval continuity by anastomosis between the common trunk of the middle and left hepatic veins of the receiver and the cranial portion of the vena cava of the graft is possible without incongruence. This study makes no assumptions about the hemodynamic effects associated with the smallest diameter of the true ostium of the common trunk at its opening into the inferior vena cava. In this study, the morphology of the common trunk was comparable to that observed by Nakamura. Further, we propose an anatomo-clinical classification allowing evaluation of the facility of vascular control of the common trunk in terms of the number and location of the collateral veins.

Cadaver↗
PubMed1999

Long-term results after esophagectomy for squamous cell carcinoma of the esophagus associated with head and neck cancer.

BACKGROUND: Esophageal squamous cell carcinomas are frequently associated with head and neck cancers. The poor prognosis of each cancer, and their proximity, often limit the treatment options. This study was conducted to determine the characteristics and long-term outcome of such dual cancers. PATIENTS AND METHODS: We included 75 patients with esophageal carcinoma, of whom 25 had a synchronous head and neck malignancy. Curative treatment was possible in every case. The patients were divided into "solitary cancer" and "synchronous cancer" groups. RESULTS: The gender distribution, tumor location, and histological findings were similar in the two groups. Patients in the synchronous cancer group were younger than those in the solitary group (P < 0.0042). The operative mortality and pulmonary morbidity rates were not significantly different in the two groups. The rate of cervical anastomotic leaks was higher in the synchronous group (P < 0.05). The mean follow-up was 83 +/- 50 months. Five-year survival rates were not significantly different in the two groups (14.3% +/- 5.7% in the solitary group and 17.5% +/- 7.9% in the synchronous group). CONCLUSIONS: With aggressive treatment, the survival of patients with synchronous esophageal and head and neck cancers was similar to that of patients with isolated esophageal cancer.

Carcinoma, Squamous Cell↗
PubMed1999

Long-term prognostic value of positive peritoneal washing in colon cancer.

BACKGROUND: We examined the potential prognostic value of free malignant cells in the peritoneal cavity of patients with colon adenocarcinoma. METHODS: In 1991 and 1992, 88 patients underwent peritoneal washing with cytologic analysis immediately before elective colon resection for adenocarcinoma with no evidence of peritoneal metastases. Peritoneal washing fluid was collected before abdominal exploration, centrifuged immediately, and stained with the May-Grünwald-Giemsa and Harris Shorr methods. Malignancy was defined as recommended by Papanicolaou. RESULTS: Free malignant cells in peritoneal fluid (positive peritoneal washing) were found in 25 of 88 (28%) patients (Dukes A, 0 of 11; Dukes B, 10 of 31; Dukes C, 11 of 37; Dukes D, 4 of 9). The positivity rate was 24 of 75 (32%) among patients with tumours involving the serous layer and 1 of 13 (8%) among the others (P = 0.0989). With a follow-up of 66.7 to 78.7 months the 5-year survival rates were 48% (95% confidence interval, 28.4-67.6) and 68% (95% CI, 56.2-79.8) among patients with positive and negative peritoneal washing, respectively (P = 0.09). Positive peritoneal washing was not significantly associated with survival in multivariate analysis. CONCLUSION: The presence of free malignant cells in the peritoneal cavity of patients with colon cancer provided no further prognostic information relative to the Dukes classification in this study. Nevertheless, further study is needed, particularly in a larger series of Dukes B patients, for whom a new prognostic factor would be useful for deciding adjuvant therapy.

Adenocarcinoma↗
PubMed1999

[Cystic dystrophy of the duodenal wall in aberrant pancreas].

Cystic dystrophy of the duodenal wall developing in heterotopic pancreas is rare. Pancreaticoduodenectomy is usually advocated in cases of symptomatic cystic dystrophy without chronic pancreatitis but little is known about long-term results. We report a case of cystic dystrophy of the duodenum wall developing in heterotopic pancreas responsible for abdominal pain and duodenal obstruction associated with chronic pancreatitis. Pancreaticoduodenectomy allowed complete relief of symptoms. Chronic pancreatitis associated with cystic dystrophy may complicate the choice of appropriate therapy.

Choristoma↗
PubMed1999

Abdominal surgery in chronic hemodialysis patients.

The number of patients with end-stage renal disease who benefit from chronic dialysis is steadily increasing. This study was designed to assess abdominal surgery in chronic hemodialysis (CHD) patients. A 7-year retrospective study was conducted including all the patients on CHD who underwent abdominal surgery in our unit. These patients were separated into an elective and an emergency surgery group. Forty-three patients underwent surgery. In the elective surgery group (18 patients), the most common diseases were colorectal cancer, symptomatic gallbladder stones, and hernia. There was no death related to surgery in this group, and only one patient developed a complication (5%). In the emergency surgery group (25 patients), the most common diseases were mesenteric ischemia and gastrointestinal bleeding from angiodysplasia. Complications occurred in 10 patients (total morbidity rate, 40%), and 6 of them died (mortality rate, 24%). Gastrointestinal elective surgery in patients on CHD can be performed with low morbidity and mortality rates. The emergency group was differentiated by the high prevalence of bleeding from angiodysplasia and mesenteric infarction, as well as its high surgical mortality rate.

Abdomen↗