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1.
Surg Endosc ; 34(4): 1592-1601, 2020 04.
Artículo en Inglés | MEDLINE | ID: mdl-31222633

RESUMEN

BACKGROUND: The Forrest classification is widely applied to guide endoscopic hemostasis for peptic ulcer bleeding. Accordingly, practice guidelines suggest medical treatment only for ulcer with a Forrest IIc lesion because it has low rebleeding risk even without endoscopic therapy, ranging from 0 to 13%. However, the risk ranges widely and it is unclear who is at risk of rebleeding with such a lesion. This study assessed whether the Rockall score, which evaluates patients holistically, could indicate the risk of recurrent bleeding among patients with a Forrest IIc lesion at the second-look endoscopy. METHODS: Patients who had peptic ulcer bleeding with Ia-IIb lesions received endoscopic hemostasis at the primary endoscopy, and they were enrolled if their Ia-IIb lesions had been fading to IIc at the second-look endoscopy after 48- to 72-h intravenous proton pump inhibitor (PPI) infusion. Primary outcomes were rebleeding during the 4th-14th day and 4th-28th day after the first bleeding episode. RESULTS: The prospective cohort study enrolled 140 patients, who were divided into a Rockall scores ≥ 6 group or a Rockall scores < 6 group. The rebleeding rates in the Rockall scores ≥ 6 group and the Rockall scores < 6 group during the 4th-14th day and the 4th-28th day were 13/70 (18.6%) versus 2/70 (2.9%), p = 0.003 and 17/70 (24.3%) versus 3/70 (4.3%), p = 0.001, respectively, based on an intention-to-treat analysis and 5/62 (8.1%) versus 0/68 (0%), p = 0.023 and 6/59 (10.2%) versus 0/67 (0%), p = 0.009, respectively, based on a per-protocol analysis. The Kaplan-Meier curves showed that the Rockall scores ≥ 6 group had a significantly lower cumulative rebleeding-free proportion than the Rockall scores < 6 group (p = 0.01). CONCLUSIONS: Combined Rockall scores ≥ 6 on arrival with a Forrest IIc lesion at the second-look endoscopy can identify patients at risk of recurrent peptic ulcer bleeding following initial endoscopic and intravenous PPI treatment. Trial registration Trial registration identifier: NCT01591083.


Asunto(s)
Úlcera Péptica Hemorrágica/patología , Úlcera Péptica Hemorrágica/cirugía , Úlcera Gástrica/patología , Úlcera Gástrica/cirugía , Anciano , Anciano de 80 o más Años , Femenino , Gastroscopía/métodos , Hemostasis Endoscópica/métodos , Humanos , Infusiones Intravenosas , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Úlcera Péptica Hemorrágica/tratamiento farmacológico , Estudios Prospectivos , Inhibidores de la Bomba de Protones/administración & dosificación , Inhibidores de la Bomba de Protones/uso terapéutico , Recurrencia , Segunda Cirugía , Úlcera Gástrica/tratamiento farmacológico , Resultado del Tratamiento
2.
Am J Gastroenterol ; 112(3): 441-446, 2017 03.
Artículo en Inglés | MEDLINE | ID: mdl-28094314

RESUMEN

OBJECTIVES: Our aims were to assess risks of early rebleeding after successful endoscopic hemostasis for Forrest oozing (FIB) peptic ulcer bleeding (PUBs) compared with other stigmata of recent hemorrhage (SRH). METHODS: These were post hoc multivariable analyses of a large, international, double-blind study (NCT00251979) of patients randomized to high-dose intravenous (IV) esomeprazole (PPI) or placebo for 72 h. Rebleeding rates of patients with PUB SRH treated with either PPI or placebo after successful endoscopic hemostasis were also compared. RESULTS: For patients treated with placebo for 72 h after successful endoscopic hemostasis, rebleed rates by SRH were spurting arterial bleeding (FIA) 22.5%, adherent clot (FIIB) 17.6%, non-bleeding visible vessel (FIIA) 11.3%, and oozing bleeding (FIB) 4.9%. Compared with FIB patients, FIA, FIIB, and FIIA had significantly greater risks of rebleeding with odds ratios (95% CI's) from 2.61 (1.05, 6.52) for FIIA to 6.66 (2.19, 20.26) for FIA. After hemostasis, PUB rebleeding rates for FIB patients at 72 h were similar with esomeprazole (5.4%) and placebo (4.9%), whereas rebleed rates for all other major SRH (FIA, FIIA, FIIB) were lower for PPI than placebo, but the treatment by SRH interaction test was not statistically significant. CONCLUSIONS: After successful endoscopic hemostasis, FIB patients had very low PUB rebleeding rates irrespective of PPI or placebo treatment. This implies that after successful endoscopic hemostasis the prognostic classification of FIB ulcers as a high-risk SRH and the recommendation to treat these with high-dose IV PPI's should be re-evaluated.


Asunto(s)
Electrocoagulación/métodos , Endoscopía del Sistema Digestivo , Epinefrina/uso terapéutico , Hemostasis Quirúrgica/métodos , Úlcera Péptica Hemorrágica/cirugía , Vasoconstrictores/uso terapéutico , Administración Intravenosa , Anciano , Método Doble Ciego , Esomeprazol/uso terapéutico , Femenino , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Úlcera Péptica/complicaciones , Úlcera Péptica/tratamiento farmacológico , Úlcera Péptica Hemorrágica/etiología , Inhibidores de la Bomba de Protones/uso terapéutico , Ensayos Clínicos Controlados Aleatorios como Asunto , Recurrencia , Medición de Riesgo , Instrumentos Quirúrgicos , Resultado del Tratamiento
3.
BMC Gastroenterol ; 12: 66, 2012 Jun 08.
Artículo en Inglés | MEDLINE | ID: mdl-22681960

RESUMEN

BACKGROUND: High dose intravenous proton pump inhibitor after endoscopic therapy for peptic ulcer bleeding has been recommended as adjuvant therapy. Whether oral proton pump inhibitor can replace intravenous proton pump inhibitor in this setting is unknown. This study aims to compare the clinical efficacy of oral and intravenous proton pump inhibitor after endoscopic therapy. METHODS: Patients with high-risk bleeding peptic ulcers after successful endoscopic therapy were randomly assigned as oral lansoprazole or intravenous esomeprazole group. Primary outcome of the study was re-bleeding rate within 14 days. Secondary outcome included hospital stay, volume of blood transfusion, surgical intervention and mortality within 1 month. RESULTS: From April 2010 to Feb 2011, 100 patients were enrolled in this study. The re-bleeding rates were 4% (2/50) in the intravenous group and 4% (2/50) in the oral group. There was no difference between the two groups with regards to the hospital stay, volume of blood transfusion, surgery or mortality rate. The mean duration of hospital stay was 1.8 days in the oral lansoprazole group and 3.9 days in the intravenous esomeprazole group (p > 0.01). CONCLUSION: Patients receiving oral proton pump inhibitor have a shorter hospital stay. There is no evidence of a difference in clinical outcomes between oral and intravenous PPI treatment. However, the study was not powered to prove equivalence or non-inferiority. Future studies are still needed. TRIAL REGISTRATION: NCT01123031.


Asunto(s)
2-Piridinilmetilsulfinilbencimidazoles/administración & dosificación , Antiulcerosos/administración & dosificación , Esomeprazol/administración & dosificación , Úlcera Péptica Hemorrágica/prevención & control , Inhibidores de la Bomba de Protones/administración & dosificación , Administración Intravenosa , Administración Oral , Anciano , Transfusión Sanguínea , Endoscopía , Femenino , Humanos , Lansoprazol , Tiempo de Internación , Masculino , Persona de Mediana Edad , Úlcera Péptica/tratamiento farmacológico , Úlcera Péptica/cirugía , Úlcera Péptica Hemorrágica/cirugía , Prevención Secundaria , Resultado del Tratamiento
4.
Dig Endosc ; 24(2): 93-9, 2012 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-22348833

RESUMEN

AIM: Upper gastrointestinal bleeding is often associated with a higher risk of serious blood loss. Both H2-receptor antagonists and proton pump inhibitors are commonly given intravenously for endoscopic hemostatic therapies. We compared the effects of a H2-receptor antagonist (famotidine) and a proton pump inhibitor (omeprazole) injected during the early phase (the first 3 days) on cessation of bleeding and prevention of its recurrence in patients who underwent endoscopic therapy for gastroduodenal ulcer bleeding. METHODS: Consecutive patients who were hospitalized at our clinic with bleeding gastroduodenal ulcers and underwent endoscopic therapy were randomly assigned to receive injections of famotidine, omeprazole, or both. Injection of acid suppressants was switched on the fourth day to the oral administration of omeprazole continued for 8 weeks. RESULTS: Over a 25-month period, 116 patients were enrolled. The overall success rate for endoscopic hemostasis was 115/116 (99.1%). The success rate of hemostasis and prevention of recurrent ulcer bleeding by type of acid suppressant following endoscopic hemostasis was 39/40 (97.5%) for Group 1 (3-day omeprazole administration), 35/37 (94.6%) for Group 2 (3-day famotidine administration), and 38/39 (97.4%) for Group 3 (1-day famotidine and then 2-day omeprazole administration), yielding an overall rate of 112/116 (96.6%). No significant difference in the hemostatic effect was observed among the groups. There were also no differences in the duration of hospital days and the number of fasting days between the three groups. CONCLUSION: Famotidine and omeprazole injected during the early phase of a bleeding ulcer may have similar effects to an adjuvant therapy for preventing rebleeding from endoscopically treated upper gastrointestinal bleeding in Japanese patients.


Asunto(s)
Inhibidores Enzimáticos/uso terapéutico , Famotidina/uso terapéutico , Hemorragia Gastrointestinal/cirugía , Hemostasis Endoscópica , Antagonistas de los Receptores H2 de la Histamina/uso terapéutico , Omeprazol/uso terapéutico , Úlcera Péptica Hemorrágica/cirugía , Inhibidores de la Bomba de Protones/uso terapéutico , Quimioterapia Adyuvante , Femenino , Humanos , Inyecciones , Tiempo de Internación , Masculino , Úlcera Péptica Hemorrágica/tratamiento farmacológico , Prevención Secundaria
5.
Rev Esp Enferm Dig ; 103(11): 594-6, 2011 Nov.
Artículo en Inglés, Español | MEDLINE | ID: mdl-22149564

RESUMEN

Wernicke's encephalopathy is an acute neurological disorder resulting from thiamine deficiency. We report a case in a young patient who underwent a cephalic duodenopancreatectomy with a bleeding duodenal ulcer refractory to endoscopic and surgical treatment, requiring total parenteral nutrition, without thiamine supplementation.


Asunto(s)
Úlcera Duodenal/cirugía , Pancreaticoduodenectomía , Nutrición Parenteral Total , Úlcera Péptica Hemorrágica/cirugía , Encefalopatía de Wernicke/etiología , Adulto , Úlcera Duodenal/complicaciones , Humanos , Masculino , Úlcera Péptica Hemorrágica/complicaciones , Encefalopatía de Wernicke/diagnóstico
6.
Br J Surg ; 98(5): 640-4, 2011 May.
Artículo en Inglés | MEDLINE | ID: mdl-21305536

RESUMEN

BACKGROUND: Rebleeding from peptic ulcers is a major contributor to death. This study compared standard (40-mg intravenous infusion of omeprazole once daily for 3 days) and high-dose (80-mg bolus of omeprazole followed by 8-mg/h infusion for 72 h) in reducing the rebleeding rate (primary endpoint), need for surgery, duration of hospital stay and mortality in patients with peptic ulcer bleeding after successful endoscopic therapy. METHODS: This was a single-institution prospective randomized controlled study based on a postulated therapeutic equivalence of the two treatments. All patients who had successful endoscopic haemostasis of a bleeding peptic ulcer (Forrest classification Ia, Ib, IIa or IIb) were recruited. Informed consent was obtained and patients were randomized to receive standard- or high-dose infusions of intravenous omeprazole. RESULTS: Two (3 per cent) of 61 patients in the high-dose group and ten (16 per cent) of 61 in the standard-dose group exhibited rebleeding, a difference of - 13 (95 per cent confidence interval - 25 to - 2) per cent. The upper limit of the one-sided confidence interval exceeded a predefined equivalence absolute difference of 16 per cent. Equivalence of standard- and high-dose omeprazole in preventing rebleeding was not demonstrated. CONCLUSION: Intravenous standard-dose omeprazole was inferior to high-dose omeprazole in preventing rebleeding after endoscopic haemostasis for peptic ulcer bleeding. REGISTRATION NUMBER: NCT00519519 (http://www.clinicaltrials.gov).


Asunto(s)
Antiulcerosos/administración & dosificación , Gastroscopía , Omeprazol/administración & dosificación , Úlcera Péptica Hemorrágica/tratamiento farmacológico , Úlcera Gástrica/tratamiento farmacológico , Enfermedad Aguda , Femenino , Hemostasis Quirúrgica , Humanos , Infusiones Intravenosas , Tiempo de Internación , Masculino , Persona de Mediana Edad , Úlcera Péptica Hemorrágica/mortalidad , Úlcera Péptica Hemorrágica/cirugía , Estudios Prospectivos , Factores de Riesgo , Prevención Secundaria , Úlcera Gástrica/mortalidad , Úlcera Gástrica/cirugía , Resultado del Tratamiento
7.
Aliment Pharmacol Ther ; 25(8): 949-54, 2007 Apr 15.
Artículo en Inglés | MEDLINE | ID: mdl-17402999

RESUMEN

UNLABELLED: High-dose omeprazole reduces the rate of recurrent bleeding after endoscopic treatment of peptic ulcer bleeding. However, the effectiveness of high-dose vs. standard-dose omeprazole in peptic ulcer bleeding has never been shown. AIM: To compare the benefits of high-dose vs. standard-dose omeprazole in peptic ulcer bleeding. METHODS: We reviewed the medical files of patients admitted between 1997 and 2004 for high-risk peptic ulcer bleeding who had undergone successful endoscopic treatment. We distinguished 2 periods: before 2001, standard-dose omeprazole (40 mg/day intravenously until alimentation was possible, then 40 mg/day orally for 1 week); after 2001, high-dose omeprazole (80 mg bolus injection, then 8 mg/h continuous infusion for 72 h, then 40 mg/day orally for 1 week). During both periods, patients subsequently received omeprazole, 20 mg/day, orally for 3 weeks. RESULTS: We enrolled 114 patients (period 1, n = 45, period 2, n = 69). Therapy with high-dose omeprazole significantly decreased the occurrence of poor outcome (27 vs. 12%, P = 0.04), rebleeding (24 vs. 7%, P = 0.01), mortality due to haemorrhagic shock (11 vs. 0%, P < 0.001) and need for surgery (9 vs. 1%, P = 0.05). CONCLUSIONS: In this retrospective study, high-dose omeprazole reduced the occurrence of rebleeding, need for surgery and mortality due to hemorrhagic shock in patients with high-risk peptic ulcer bleeding, as compared with standard-dose omeprazole.


Asunto(s)
Antiulcerosos/administración & dosificación , Omeprazol/administración & dosificación , Úlcera Péptica Hemorrágica/prevención & control , Inhibidores de la Bomba de Protones , Choque Hemorrágico/prevención & control , Anciano , Transfusión Sanguínea , Relación Dosis-Respuesta a Droga , Endoscopía Gastrointestinal , Femenino , Humanos , Infusiones Intravenosas , Tiempo de Internación , Masculino , Persona de Mediana Edad , Úlcera Péptica Hemorrágica/cirugía , Recurrencia , Estudios Retrospectivos , Factores de Riesgo , Resultado del Tratamiento
8.
J Gastroenterol Hepatol ; 22(1): 43-6, 2007 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-17201879

RESUMEN

BACKGROUND: After endoscopic treatment of bleeding peptic ulcer, a high-dose infusion of omeprazole substantially reduces the risk of recurrent bleeding. The role of oral proton pump inhibitors for these patients is uncertain. The purpose of the present study was to assess whether the use of oral esomeprazole would reduce the frequency of recurrent bleeding after endoscopic treatment of bleeding peptic ulcers. METHODS: Patients with actively bleeding ulcers or ulcers with non-bleeding visible vessels were treated with an epinephrine injection followed by thermocoagulation. After hemostasis had been achieved, they were randomly assigned in a double-blind fashion to receive esomeprazole (40 mg p.o. twice daily for 3 days) or placebo. The outcome measures studied were recurrent bleeding, blood transfusion requirement, surgery and death. RESULTS: A total of 70 patients were enrolled, 35 in each group. Bleeding recurred within 30 days in two patients (5.7%) in the esomeprazole group, as compared with three (8.6%) in the placebo group (P = 0.999). Blood transfusion requirement was 2.8 +/- 1.4 units in the esomeprazole group and 2.7 +/- 1.3 units in the placebo group (P = 0.761). Duration of hospitalization was 4.82 +/- 1.8 days in the esomeprazole group and 4.58 +/- 2.7 days in the placebo group (P = 0.792). No patients needed surgery for control of bleeding and no patients died in both groups. CONCLUSIONS: After successful endoscopic treatment of bleeding peptic ulcer, oral use of esomeprazole might offer no additional benefit on the risk of recurrent bleeding.


Asunto(s)
Antiulcerosos/administración & dosificación , Esomeprazol/administración & dosificación , Úlcera Péptica Hemorrágica/prevención & control , Úlcera Péptica Hemorrágica/cirugía , Administración Oral , Anciano , Antiulcerosos/uso terapéutico , Método Doble Ciego , Endoscopía Gastrointestinal , Esomeprazol/uso terapéutico , Femenino , Humanos , Masculino , Persona de Mediana Edad , Recurrencia , Factores de Riesgo , Resultado del Tratamiento
9.
J Clin Gastroenterol ; 33(1): 56-60, 2001 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-11418793

RESUMEN

Liver penetration is a rare but serious complication of peptic ulcer disease. We report a case of a 33-year-old woman who took large doses of nonsteroidal antiinflammatory drugs and developed a giant duodenal ulcer that penetrated into her liver. The diagnosis was based on histologic examination of endoscopic biopsies. She was initially treated with a proton pump inhibitor, but, within 5 weeks, she developed a symptomatic postbulbar stricture that required surgical correction. We also review 11 other reported cases of endoscopically and histologically diagnosed peptic ulcer penetration into the liver.


Asunto(s)
Antiinflamatorios no Esteroideos/efectos adversos , Enfermedad Hepática Inducida por Sustancias y Drogas , Diclofenaco/efectos adversos , Úlcera Duodenal/inducido químicamente , Desplazamiento del Disco Intervertebral/tratamiento farmacológico , Úlcera Péptica Perforada/inducido químicamente , Adulto , Antiinflamatorios no Esteroideos/administración & dosificación , Diclofenaco/administración & dosificación , Úlcera Duodenal/patología , Úlcera Duodenal/cirugía , Duodenoscopía , Duodeno/patología , Femenino , Humanos , Técnicas para Inmunoenzimas , Queratinas/análisis , Hígado/patología , Hepatopatías/patología , Hepatopatías/cirugía , Pruebas de Función Hepática , Úlcera Péptica Hemorrágica/inducido químicamente , Úlcera Péptica Hemorrágica/patología , Úlcera Péptica Hemorrágica/cirugía , Úlcera Péptica Perforada/patología , Úlcera Péptica Perforada/cirugía
10.
N Engl J Med ; 343(5): 310-6, 2000 Aug 03.
Artículo en Inglés | MEDLINE | ID: mdl-10922420

RESUMEN

BACKGROUND: After endoscopic treatment of bleeding peptic ulcers, bleeding recurs in 15 to 20 percent of patients. METHODS: We assessed whether the use of a high dose of a proton-pump inhibitor would reduce the frequency of recurrent bleeding after endoscopic treatment of bleeding peptic ulcers. Patients with actively bleeding ulcers or ulcers with nonbleeding visible vessels were treated with an epinephrine injection followed by thermocoagulation. After hemostasis had been achieved, they were randomly assigned in a double-blind fashion to receive omeprazole (given as a bolus intravenous injection of 80 mg followed by an infusion of 8 mg per hour for 72 hours) or placebo. After the infusion, all patients were given 20 mg of omeprazole orally per day for eight weeks. The primary end point was recurrent bleeding within 30 days after endoscopy. RESULTS: We enrolled 240 patients, 120 in each group. Bleeding recurred within 30 days in 8 patients (6.7 percent) in the omeprazole group, as compared with 27 (22.5 percent) in the placebo group (hazard ratio, 3.9; 95 percent confidence interval, 1.7 to 9.0). Most episodes of recurrent bleeding occurred during the first three days, which made up the infusion period (5 in the omeprazole group and 24 in the placebo group, P<0.001). Three patients in the omeprazole group and nine in the placebo group underwent surgery (P=0.14). Five patients (4.2 percent) in the omeprazole group and 12 (10 percent) in the placebo group died within 30 days after endoscopy (P=0.13). CONCLUSIONS: After endoscopic treatment of bleeding peptic ulcers, a high-dose infusion of omeprazole substantially reduces the risk of recurrent bleeding.


Asunto(s)
Antiulcerosos/uso terapéutico , Omeprazol/uso terapéutico , Úlcera Péptica Hemorrágica/tratamiento farmacológico , Úlcera Péptica/tratamiento farmacológico , Inhibidores de la Bomba de Protones , Anciano , Antiulcerosos/administración & dosificación , Terapia Combinada , Método Doble Ciego , Electrocoagulación , Endoscopía Gastrointestinal , Epinefrina/uso terapéutico , Femenino , Humanos , Inyecciones Intravenosas , Tiempo de Internación , Masculino , Persona de Mediana Edad , Omeprazol/administración & dosificación , Úlcera Péptica/mortalidad , Úlcera Péptica/cirugía , Úlcera Péptica Hemorrágica/mortalidad , Úlcera Péptica Hemorrágica/prevención & control , Úlcera Péptica Hemorrágica/cirugía , Riesgo , Prevención Secundaria , Vasoconstrictores/uso terapéutico
14.
Vestn Khir Im I I Grek ; 155(4): 57-9, 1996.
Artículo en Ruso | MEDLINE | ID: mdl-8992723

RESUMEN

Causes of the incompetence of stump sutures in resection of the stomach observed in 90 out of 3479 patients with chronic duodenal ulcers were analyzed. Most patients were found to have a combination of general and local factors. Among the local factors the leading one was appearance of a large inflammatory infiltration around the "active" ulcers. The endoscopic autohemoapplication to the ulcer included in the complex of preoperative preparation of the patients reduced the frequency of incompetence of sutures from 2.58% to 1.33%.


Asunto(s)
Úlcera Duodenal/cirugía , Duodeno/cirugía , Gastrectomía/métodos , Dehiscencia de la Herida Operatoria/etiología , Dehiscencia de la Herida Operatoria/prevención & control , Anastomosis Quirúrgica/métodos , Transfusión de Sangre Autóloga , Úlcera Duodenal/complicaciones , Procedimientos Quirúrgicos Electivos , Urgencias Médicas , Humanos , Úlcera Péptica Hemorrágica/cirugía , Cuidados Preoperatorios/métodos
15.
Khirurgiia (Mosk) ; (3): 85-8, 1991 Mar.
Artículo en Ruso | MEDLINE | ID: mdl-1861397

RESUMEN

It is shown on the basis of analysis of the results of treatment of 179 patients that the use of hyperbaric oxygenation in the complex surgical management of ulcerative gastroduodenal bleeding reduced the number of postoperative complications by a factor of 3.3 and led to a decrease of mortality from 20 to 1%. The authors confirm the expedience of including hyperbaric oxygenation in the complex of therapeutic measures in patients with bleeding ulcers under conditions of accomplished hemostasis by conservative or surgical methods in one of three suggested variants: in preparation of the patients for operation in the postponed period; after operative interventions carried out at the peak of bleeding; before and after operations on patients with moderate and severe blood loss and concomitant diseases. The sessions should be conducted under pressure of 2 atm for 60 minutes.


Asunto(s)
Úlcera Duodenal/complicaciones , Oxigenoterapia Hiperbárica , Úlcera Péptica Hemorrágica/cirugía , Úlcera Gástrica/complicaciones , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Cuidados Posoperatorios , Complicaciones Posoperatorias/prevención & control , Cuidados Preoperatorios , Recurrencia
17.
Gut ; 26(5): 477-80, 1985 May.
Artículo en Inglés | MEDLINE | ID: mdl-3873381

RESUMEN

One hundred and twenty six consecutive patients presenting with upper alimentary bleeding were endoscoped. Seventeen gastric and 11 duodenal lesions with visible blood vessels were identified and cauterised with the electrohydrothermoprobe. One gastric and four duodenal vessels rebled, necessitating surgery. For the gastric vessels this represents about one tenth of the expected rebleeding rate, and is a significant reduction. The technique appears to have no effect on the rebleeding rate in duodenal vessels.


Asunto(s)
Electrocoagulación/métodos , Hemorragia Gastrointestinal/cirugía , Enfermedad Aguda , Anciano , Úlcera Duodenal/complicaciones , Femenino , Humanos , Recién Nacido , Masculino , Persona de Mediana Edad , Úlcera Péptica Hemorrágica/cirugía , Recurrencia , Úlcera Gástrica/complicaciones
20.
Gastrointest Endosc ; 26(4): 131-3, 1980 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-7192664

RESUMEN

Fiberoptic-coupled, Neodymium-Yag laser beams were directed at induced bleeding mucosal lesions in the stomachs of 13 dogs. Hemostasis was achieved in all cases. The lesions induced by photocoagulation were examined by light microscopy and transmission electron microscopy. Phototherapy induces an endothelial reaction followed by the formation of a platelet thrombus in the damaged vessels. Hemostasis starts shortly after coagulation therapy has been performed.


Asunto(s)
Hemostasis Quirúrgica/métodos , Terapia por Láser , Rayos Láser/métodos , Úlcera Péptica Hemorrágica/cirugía , Úlcera Gástrica/patología , Enfermedad Aguda , Animales , Perros , Tecnología de Fibra Óptica , Estudios de Seguimiento , Mucosa Gástrica/patología , Mucosa Gástrica/ultraestructura , Microscopía Electrónica , Neodimio , Úlcera Gástrica/complicaciones
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