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Biomedical subjects

H G Gooszen

Publications and source records attributed to H G Gooszen.

At least 37 records · Page 2Linked to original sources
PubMed2004

Long-term effect of fundoplication on motility of the oesophagus and oesophagogastric junction.

BACKGROUND: This study assessed the long-term effect of Nissen fundoplication on oesophageal and oesophagogastric junction (OGJ) motility. METHODS: Symptoms were scored and oesophageal manometry performed in 34 consecutive patients with chronic gastro-oesophageal reflux disease, before, 3 months after and 2 years after surgery. RESULTS: Distal peristaltic amplitude increased from a median of 57 (95 per cent confidence interval (c.i.) 18 to 107) mmHg to 86 (95 per cent c.i. 54 to 208) mmHg (P < 0.001) at 3 months and 92 (45 to 210) mmHg (P < 0.001) at 2 years. In four patients the amplitude increased to more than 180 mmHg and three of these patients reported odynophagia. After surgery, a linear relationship was observed between the peristaltic amplitude and nadir OGJ relaxation pressure at 3 months (r(s) = 0.68, P < 0.001) and 2 years (r(s) = 0.64, P < 0.001). A significant correlation was also found between amplitude and both basal OGJ pressure and intrabolus pressure at 3 months (r(s) = 0.58, P < 0.001 and r(s) = 0.63, P < 0.001 respectively) and 2 years (r(s) = 0.71, P < 0.001 and r(s) = 0.49, P = 0.024). There was a relationship between peristaltic amplitude and the odynophagia score at 2 years (r(s) = 0.60, P = 0.017). CONCLUSION: Within 3 months of fundoplication the amplitude of oesophageal peristalsis increased substantially, leading to a nutcracker oesophagus and odynophagia in a subgroup of patients. These phenomena did not appear to progress with time.

Deglutition Disorders↗
PubMed2004

Early experience in robot-assisted laparoscopic Heller myotomy.

Heller myotomy for achalasia is routinely performed laparoscopically. This offers patients significant benefits compared to open surgery. Surgeons, however, are limited in their manipulation and visualization during laparoscopic interventions. Robotic telemanipulation systems were introduced with the objective of alleviating these limitations. The purpose of this study was to demonstrate the efficacy and safety of performing a Heller myotomy with the use of a robotic telemanipulation system. Fourteen patients were operated on with the da Vinci robot system. Robotic system set-up time, per- and postoperative complications, blood loss, operating time and hospital stay were recorded. Follow-up included manometry and symptom score. The robotic system set-up time was 15 min (10-15). Thirteen procedures (13/14: 93%) were completed by laparoscopic surgery. One procedure was converted because of inadequate exposure. One peroperative mucosal perforation was closed laparoscopically. The median blood loss was 10 mL (10-200). Median operating time was 90 min (75-150). Hospitalization ranged from 2 to 8 days (median 3). No complications occurred during a 30-day postoperative period. Dysphagia was relieved in 12/14 patients (86%). Heartburn was present postoperatively in 2/14 patients (14%). Manometry showed a significant decrease in median lower oesophageal sphincter (LOS) pressure from 2.9 preoperatively to 1 kPa postoperatively (P = 0.008). Robot-assisted laparoscopic Heller myotomy was demonstrated to be safe and effective in reducing basal LOS pressure and dysphagia. The results of this study clearly support the feasibility of the use of this system in performing a delicate laparoscopic surgical procedure. The use of a robotic system was experienced as being highly supportive in manipulation and visualization by the surgical team involved.

Adolescent↗
PubMed2004

Relationship between partial gastric volumes and dyspeptic symptoms in fundoplication patients: a 3D ultrasonographic study.

OBJECTIVES: Impaired gastric accommodation may induce dyspeptic symptoms in postfundoplication patients. Our aim was to assess the effect of a meal on total and partial gastric volumes in relation to dyspeptic symptoms in both dyspeptic and nondyspeptic fundoplication patients using three-dimensional (3D) ultrasonography. METHODS: Eighteen postfundoplication patients of whom eight with and ten without dyspeptic symptoms and eighteen controls were studied. Three-dimensional ultrasonographic images of the stomach were acquired and symptoms were scored while fasting and at 5, 15, 30, 45, and 60 min after ingesting of a 500-ml liquid meal. From the 3D ultrasonographic images of the stomach the total, proximal, and distal gastric volumes were computed. RESULTS: Dyspeptic and nondyspeptic fundoplication patients exhibited similar total gastric volumes at 5 min postprandially compared to controls, whereas smaller total gastric volumes were observed from 15 to 60 min postprandially (p = 0.007 and p < 0.001, respectively). Postprandial proximal/total gastric volume ratios were markedly reduced in both dyspeptic (0.39 +/- 0.016; p < 0.05) and nondyspeptic (0.38 +/- 0.016; p < 0.01) fundoplication patients compared to controls (0.47 +/- 0.008). In contrast, distal/total gastric volume ratios were larger in dyspeptic fundoplication patients (0.14 +/- 0.008) compared to both nondyspeptic fundoplication patients (0.11 +/- 0.007); p < 0.05) and controls (0.07 +/- 0.003); p < 0.001). Dyspeptic fundoplication patients had a higher postprandial score for fullness, nausea, and pain than nondyspeptic patients (p < 0.05) and controls (p < 0.05). Meal-induced distal gastric volume increase correlated significantly with the increase in fullness (r = 0.68; p < 0.01). CONCLUSIONS: After a liquid meal, fundoplication patients exhibit a larger volume of the distal stomach compared with controls. Distal stomach volume was more pronounced in dyspeptic fundoplication patients and related with the increase in postprandial fullness sensations.

Adult↗
PubMed2003

Colonic involvement in acute pancreatitis. A retrospective study of 16 patients.

BACKGROUND: Diagnosis of colonic pathology complicating acute pancreatitis is difficult. Several pathogenetic mechanisms have been proposed. The treatment of choice is resection of the affected segment. Current theories on diagnosis, pathogenesis, and treatment were reviewed. METHOD: Retrospectively, 16 patients with severe acute pancreatitis and colonic complications (1988-2001) were included. Preoperative CT scans and specimens of removed colonic segments were reviewed by a blinded radiologist and pathologist respectively. RESULTS: Sixteen patients underwent partial colectomy for suspected imminent or overt perforation, based on the outer aspect of the colon. Four patients had a macroscopic perforation during surgery. Retroperitoneal spread of the necrotizing process to the colon was seen in all 10 reviewed CT scans. All 14 microscopically examined specimens showed fat necrosis and pericolitis. Of these, 4 had ischemia and 6 showed subserosal hemorrhage. Eight specimens had intact mucosa, submucosa and smooth muscle layers. Eleven patients died. Secondary anastomosis in surviving patients did not induce further mortality. CONCLUSION: Spread of pancreatic enzymes and necrosis is the major cause for colonic pathology in acute pancreatitis. Outside inspection of the colon during surgery is unreliable to detect ischemia or imminent perforation. To prevent colonic complications during follow-up, low-threshold colonic resection seems justified.

Acute Disease↗
PubMed2003

Sexual function and continence after ileo pouch anal anastomosis: a comparison between a meta-analysis and a questionnaire survey.

BACKGROUND AND AIMS: Ileo pouch anal anastomosis (IPAA) is the standard restorative procedure for patients with ulcerative colitis and familial adenomatous polyposis, but its pros and cons have not been explored in depth. This study analyzed the long-term complications such as incontinence and sexual dysfunction after IPAA. PATIENTS AND METHODS: Netherlands Society for Crohn's disease and Ulcerative Colitis) A questionnaire on complications, sexual dysfunction, and continence was sent to all 137 members of the Netherlands Society for Crohn's disease and Ulcerative Colitis who had IPAA; the questionnaire was returned by 111. Results of the questionnaire were compared with those of a meta-analysis on pooled incidences of complications after IPAA, as previously performed and reported. RESULTS: Pelvic sepsis was reported by 15.3% of respondents. The reported incidence of sexual dysfunction (19.8%), passive incontinence (23.4%), and soiling (39.3%) was significantly higher than that in the meta-analysis. Nevertheless, 90% of the population was satisfied with the results of the IPAA. CONCLUSION: This study underlines that the operation itself, freeing patients of their disease, provides the major satisfaction and improvement of quality of life, even when patients have pouch-related complications such as sexual dysfunction and some degree of fecal incontinence.

Adolescent↗
PubMed2003

Size of the pancreatic head as a prognostic factor for the outcome of Beger's procedure for painful chronic pancreatitis.

BACKGROUND: Duodenum-preserving resection of the head of the pancreas (DPRHP) according to Beger has been developed as an alternative to pylorus-preserving resection of the pancreatic head for painful chronic pancreatitis. METHODS: Between 1988 and 2000, 36 consecutive DPRHPs were performed. The group was divided into patients with (group 1; n = 23) and without (group 2; n = 13) significant enlargement of the pancreatic head. Pain was the indication for surgery in all patients. RESULTS: Complications occurred in 12 patients, necessitating reoperation in 11. Initial overall results were favourable; significant improvement or complete relief of pain was reported in 27 of 35 patients. Long-term results were obtained in 27 of 30 patients; the overall success rate was 16 of 27, 13 of 16 patients with distinct enlargement of the pancreatic head and 3 of the 11 with minimal or no enlargement (P = 0.018). CONCLUSION: DPRHP can be performed with good early results. This effect is sustained in patients with distinct localized disease of the pancreatic head. In those without, the long-term results are disappointing.

Adult↗
PubMed2003

Impact of anatomical wrap position on the outcome of Nissen fundoplication.

BACKGROUND: The importance of anatomical reposition and fixation of the type I hiatal hernia during antireflux surgery has often been emphasized. It is not known whether the initial anatomical repair withstands the test of time and whether this repair is necessary for a successful outcome. METHODS: The relationship between the objective anatomical and subjective symptomatic outcome of Nissen fundoplication was investigated prospectively in 57 patients. Findings of herniation, telescoping and obstruction at the level of the lower oesophageal sphincter on barium swallow were scored 2 years after operation by investigators who were unaware of the symptoms, and were related to symptoms and patient satisfaction evaluated by a standard questionnaire. RESULTS: According to strict criteria, some 55 per cent of patients had some degree of anatomical failure; if only complete herniation, significant telescoping and signs of obstruction were scored as abnormal, 27 per cent had anatomical failure. There was no relation to subjective outcome; relief was reported by 48 of 49 patients, 25 of whom were cured and 23 significantly improved. CONCLUSION: Anatomical repair during antireflux surgery does not stand the test of time. Although this has no demonstrable influence on the subjective outcome, the authors do not recommend deviating from well designed surgical guidelines. Current theories on the mechanism of antireflux surgery require further evaluation.

Barium Sulfate↗
PubMed2003

Interdigestive small bowel motility and duodenal bacterial overgrowth in experimental acute pancreatitis.

The objective of this study is to investigate the effects of an acute necrotizing pancreatitis (ANP), without biliary obstruction, on the migrating motor complex (MMC), small bowel bacterial overgrowth (SBBO), bacterial translocation (BT) and infection of the pancreas simultaneously. Rats were divided into four groups: mild pancreatitis, control, ANP and sham operated control. Jejunal myoelectrodes were used to measure MMCs. Blood, peritoneal fluid, bile, and abdominal organs were harvested for microbial culturing 72 h after induction of pancreatitis. The splenic portion of the pancreas was taken for histology. During ANP the MMC cycle length was significantly increased from 14.1 +/- 0.2 to 22.4 +/- 1.9 min (P < 0.05). The duodenum of ANP rats was in contrast with the other groups characterized by Enterobacteriacae (> 3 log 10 CFU g-1 in seven of 12 rats, P < 0.05). A positive correlation (r = 0.78, P < 0.01) existed between duodenal Gram-negative and anaerobic flora and the MMC cycle. Correlation between MMC cycle length and BT to the pancreas was positive as well (r = 0.70, P < 0.01). A positive correlation (r = 0.85, P < 0.01) was found between the severity of pancreatitis and duodenal bacterial overgrowth. During ANP without biliary obstruction, the jejunal MMC is disturbed and consequently SBBO occurs. The correlation between the severity of pancreatitis, the disturbance of the MMC and SBBO suggests an important pathophysiological role of the proximal small bowel in the infection of pancreatic necrosis.

Animals↗
PubMed2003

Surgical management of acute necrotizing pancreatitis: a 13-year experience and a systematic review.

BACKGROUND: The course of acute pancreatitis (AP) is unpredictable and can vary from mild to lethal. Mortality varies from low (<2%) in mild cases to high (20%-70%) in the case of infected pancreatic necrosis. Surgical management has not been investigated in well-designed trials. Based on literature review and retrospective results from our institution, recent insights are summarized and recommendations concerning surgical treatment of AP are given. METHODS: Data of patients who underwent necrosectomy for AP in our hospital in the period 1988-2001 were reviewed. Surgical treatment strategy was divided into open abdomen strategy (OAS) and primary closure with continuous postoperative lavage (CPL). An extensive database literature search was performed to obtain articles on surgical management of AP. Level 5 evidence articles were excluded. RESULTS: In our institution, 38 patients were treated with OAS and 21 with CPL. Mortality was high (47% in the OAS group and 33% in the CPL group). The primary cause of mortality was multiorgan failure. Only 50 manuscripts from the literature search contained useful data. Mortality of patients with OAS and CPL treatment was 27% and 15%. respectively. Fewer cases of gastro-intestinal fistulas. bleeding and re-interventions were reported with CPL. The majority of all survivors regained a good quality of life. CONCLUSION: Mortality of acute necrotizing pancreatitis remains high, despite optimal surgical and medical treatment. Current surgical practice is not based on well-designed clinical trails. Randomized studies are needed to define evidence-based surgery in acute necrotizing pancreatitis.

Drainage↗
PubMed2002

[One hundred years of the Association of Surgeons in the Netherlands. III. Gastrointestinal surgery].

On 27 February 1989 the Nederlandse Vereniging voor Gastro-Intestinale Chirurgie [Netherlands Association for Gastrointestinal Surgery] was founded. The aim--improvement of quality by integrating scientific and clinical work--was already formulated 10 years previously by the Gastrointestinal Surgery Working Group. The integration proceeded carefully; the Netherlands Association for Gastrointestinal Surgery began as a chapter of the Association of Surgeons in the Netherlands and as a working group within the Dutch Gastroenterology Association. Meanwhile new techniques have been investigated and introduced and surgical oncology is a growing area of collaboration with the Dutch Association for Surgical Oncology. In the future minimally invasive interventions and robot surgery will come to the fore, reflux disease and inflammatory bowel diseases will decrease as an operative indication and early diagnosis will play a greater role.

Digestive System Surgical Procedures↗
PubMed2002

The effects of the specific 5HT(4) receptor agonist, prucalopride, on colonic motility in healthy volunteers.

BACKGROUND: Prucalopride is a selective and specific 5-hydroxytryptamine(4) receptor agonist that is known to increase stool frequency and to accelerate colonic transit. AIM: To investigate the effect of prucalopride on high-amplitude propagated contractions and segmental pressure waves in healthy volunteers. METHODS: After 1 week of dosing (prucalopride or placebo in a double-blind, randomized, crossover fashion), colonic pressures were recorded in 10 healthy subjects using a solid-state pressure catheter with six sensors spaced 10 cm apart. Subjects kept diary records of their bowel habits (frequency, consistency and straining). High-amplitude propagated contractions were analysed visually, comparing their total numbers and using 10-min time windows. Segmental pressure waves were analysed using computer algorithms, quantifying the incidence, amplitude, duration and area under the curve of all detected peaks. RESULTS: When taking prucalopride, stool frequency increased, consistency decreased and subjects strained less. Prucalopride just failed to increase the total number of high-amplitude propagated contractions (P=0.055). The number of 10-min time windows containing high-amplitude propagated contractions was increased by prucalopride (P=0.019). Prucalopride increased the area under the curve per 24 h (P=0.026). CONCLUSIONS: The 5-hydroxytryptamine(4) receptor agonist prucalopride stimulates high-amplitude propagated contractions and increases segmental contractions, which is likely to be the underlying mechanism of its effect on bowel habits in healthy volunteers.

Adult↗
PubMed2002

Elicitation of transient lower oesophageal sphincter relaxations in response to gastric distension and meal ingestion.

The aim of this study was to compare the effect of graded gastric barostat distension and meal-induced fundic relaxation on the elicitation of transient lower oesophageal sphincter relaxation (TLOSR). In 15 healthy subjects, stepwise fundic distension and oesophageal manometry were performed simultaneously. Next, the effect of meal ingestion on proximal stomach volume and lower oesophageal sphincter function was studied. During stepwise barostat distension of the proximal stomach, a significant linear correlation between intragastric pressure (r = 0.91; P < 0.01) and the TLOSR rate during inflation and subsequent deflation (r = 0.96; P < 0.01) was found. A similar relationship was found for volume. In addition, after meal ingestion, the TLOSR rate increased significantly from 1.40 +/- 3 to 5.4 +/- 1.5 h-1 (P < 0.01) and 5.2 +/- 1.7 h-1 (P < 0.01), respectively, during the first and second 30-min postprandially. However, at similar calculated intragastric volumes, barostat distension led to a significantly higher TLOSR rate than the meal. Similarly, distension-induced increase in gastric wall tension, estimated from the measured bag pressure and volume using Laplace's law, was associated with significantly higher TLOSR rates (P < 0.01). In conclusion, the rate of TLOSRs in healthy volunteers is directly related to the degree of proximal gastric distension and pressure-controlled barostat distension is a more potent trigger of TLOSRs than a meal. The latter finding suggests that tension receptor activation is an important stimulus for TLOSRs.

Adult↗
PubMed2001

[Diagnostic imaging in acute pancreatitis].

Acute pancreatitis is a potentially severe disease with a high morbidity and mortality rate. The natural history of acute pancreatitis is characterised by a variable clinical picture ranging from a mild and self-limiting disease to a necrotising form with various severe and potentially lethal complications. The use of early and reliable diagnostics in the detection of (infected) pancreatic necrotic tissue in the treatment of acute pancreatitis allows adequate supportive treatment to be initiated before the onset of complications, such as infection of the pancreatic necrotic tissue or multiple organ failure. Contrast-enhanced CT is currently the gold standard in the detection of necrosis. Because of some diagnostic shortcomings and disadvantages associated with this technique, such as the use of ionising radiation and the potential nephrotoxicity of the contrast agents, reliable alternative (imaging) techniques are being sought. In particular, contrast-enhanced MRI may play an increasingly important role in the future diagnostics of acute pancreatitis.

Contrast Media↗
PubMed2001

[Acute pancreatitis--a protocol for diagnosis and treatment].

Acute pancreatitis remains a disease with high morbidity and mortality. Acute pancreatitis can be subdivided in acute interstitial pancreatitis and necrotising pancreatitis, largely compatible with clinically mild and severe pancreatitis. This diagnosis is made on the basis of patient history, physical examination, laboratory parameters, contrast CT scan and, occasionally, endoscopic retrograde cholangiopancreatography. Prognosis on admission can be established using a scoring system such as the modified Glasgow score, the Ranson score and the 'Acute physiology and chronic health evaluation'--(APACHE)-II-score. The treatment of acute pancreatitis is primarily conservative. Indications for surgical intervention are: progressive sepsis despite maximum conservative management, an established infection of (peri)pancreatic necrosis, peripancreatic abscess and perforation of stomach, small intestine or colon. The purpose of an operation is to remove necrotic tissue, achieve adequate drainage of the necrotic area or to treat a perforation. The Groningen and Utrecht University Hospitals have collaborated to develop a protocol to standardise the diagnostic approach, management, timing and choice of surgical intervention, as well as to prospectively investigate the effect of such a strategy in patients with acute pancreatitis.

Abdominal Pain↗
PubMed2001

[Reduced risk of complications associated with severe acute (necrotizing) pancreatitis by administration of antibiotics; results from a literature review].

OBJECTIVE: To determine the role of antibiotics in patients with acute pancreatitis. DESIGN: Literature review. METHOD: A Medline search for randomised clinical trials (RCTs) during the period 1990-1999 was carried out using the key words 'pancreatitis', 'acute' and 'antibiotics'. Outcome measures were pancreas-related infection, sepsis and death. RESULTS: Four RCTs were identified. Control groups were not given antibiotics. Based on the pooled data, the differences in risk in favour of the groups treated with various antibiotics were as follows: -14% (95% CI: -26(-)-1; p = 0.04) for pancreas infections, -25% (95% CI: -39(-)-12; p = 0.0002) for sepsis and -13% (95%-BI: -22(-)-3; p = 0.007) for death. CONCLUSION: Administration of antibiotics to patients with severe acute (necrotising) pancreatitis reduces the risk of serious complications.

Anti-Bacterial Agents↗
PubMed2001

Analysis and surgical treatment of persistent dysphagia after Nissen fundoplication.

BACKGROUND: After Nissen fundoplication, troublesome dysphagia develops in 5-10 per cent of patients. The mechanism of dysphagia has not been fully resolved, in spite of a number of studies focusing on oesophageal motility and lower oesophageal sphincter (LOS) dynamics. Tightness and length of the wrap have had considerable attention, without giving a fully satisfactory explanation of the pathophysiological mechanism. METHODS: Eighteen patients with persistent dysphagia after Nissen fundoplication needing reoperation were studied. Eighteen patients, matched for age and sex, without dysphagia after Nissen fundoplication were used as controls. Reoperation consisted of conversion of a 360 degrees into a 270 degrees wrap. Barium swallow, endoscopy, oesophageal manometry and 24-h pH monitoring were performed before and after (re)operation. RESULTS: Peristaltic amplitude, velocity and duration of contraction were not significantly influenced by operation. In 16 of 18 patients with dysphagia, LOS relaxation was incomplete and the residual relaxation pressure was significantly higher than that in the group without dysphagia (P < 0.01). No correlation was found between LOS pressure and peristaltic amplitude, nor between LOS pressure and ramp pressure in the distal oesophagus. After reoperation, basal LOS pressure decreased significantly (P < 0.01) and LOS relaxation was complete in all but three patients; residual relaxation pressure decreased (P < 0.01) and was significantly lower than that after uncomplicated Nissen fundoplication. In the latter group, LOS pressure, residual relaxation pressure and ramp pressure increased significantly after operation (P < 0.01). CONCLUSION: A return to complete LOS relaxation and a decrease in residual relaxation pressure play an important role in resolving dysphagia.

Adult↗
PubMed2001

Prospective study of primary anastomosis following sigmoid resection for suspected acute complicated diverticular disease.

BACKGROUND: A primary anastomosis after resection of the sigmoid colon for suspected acute complicated diverticular disease has the advantage of saving the patient a secondary operation for restoring bowel continuity. Fear of anastomotic leakage often deters surgeons from making a primary anastomosis. METHODS: A series of 45 patients who underwent primary anastomosis was studied prospectively to evaluate the feasibility of a primary anastomosis following acute sigmoid resection. Acute Physiology and Chronic Health Evaluation (APACHE) II score, Mannheim Peritonitis Index (MPI) and Hughes' peritonitis classification were used to classify patients and to detect factors predictive of postoperative outcome. Death, anastomotic leakage and septic complications were main outcome measures. RESULTS: Neither anastomotic leakage (four of 45 patients) nor death (three of 45) was related to a higher MPI, APACHE II or Hughes' score. More postoperative septic complications were seen in patients with a MPI over 16. Death, anastomotic leakage, reintervention and wound infection were observed more frequently in patients who presented with colonic obstruction than in those with abscess or perforation. CONCLUSION: Primary anastomosis is safe and effective in non-obstructed cases of complicated diverticular disease. Colonic obstruction seems to be a risk factor for the development of postoperative complications.

APACHE↗