The introduction to and inspiration from FDA Guidance: alternative procedures for the manufacture of cold-stored platelets intended for the treatment of active bleeding when conventional platelets are not available or their use is not practical / 中国输血杂志

U.S. Food and Drug Administration recently issued a guidance on alternative procedures for the manufacture of cold-stored platelets intended for the treatment of active bleeding when conventional platelets are not available or their use is not practical. It was allowed to use platelets stored at 1 ℃ to 6 ℃, with a storage period of up to 14 days from the date of collection.The validation and quality monitoring of platelet manufacture retained pH items testing at the end of the storage, and platelet count and actual plasma volume testing items were not required. The guidance provided the recommendations and considerations for the manufacture, labeling, storage, transportation, bacterial contamination control, process validation, and quality monitoring sampling of cold-stored platelets, as well as the further research needs for its efficacy, particularly when conventional platelets are available and their use is practical. The scientific and regulatory considerations on cold-stored platelets in the guidance would be informative and instructive to the development of blood regulation and standards related with urgent transfusion in China.

¿Cúan segura es la dermatología quirúrgica?. Trabajo de investigación prospectivo sobre sus complicaciones realizado en una sala de procedimientos / How safe is dermatologic surgery? Prospective reserach work on complications in dermatologic surgery located in an office-based setting

Antecedentes: Aunque las complicaciones globales en la dermatología quirúrgica referidas en la bibliografía mundial son bajas (1,64- 4,58%), las publicaciones regionales con datos prospectivos sobre ellas son escasas y, a nivel nacional, inexistentes. Objetivos: Estimar la incidencia de complicaciones intraquirúrgicas (CI) y posquirúrgicas (CP) en los procedimientos de cirugía dermatológica y caracterizarlas en el ámbito de una sala de procedimientos de un hospital de referencia de la Ciudad Autónoma de Buenos Aires. Diseño: Trabajo de investigación descriptivo, prospectivo, observacional y longitudinal. Materiales y métodos: Se recolectó información demográfica del paciente y operativa en el momento del procedimiento quirúrgico. Se clasificaron las complicaciones quirúrgicas que se presentaron hasta un mes posterior al procedimiento en los pacientes intervenidos en la sección de Dermatología Quirúrgica del Hospital F. J. Muñiz, en el período comprendido entre febrero de 2015 y marzo de 2018. Resultados: Se halló una incidencia de 0% (IC 95%: 0 a 0,4) para las CI y de 4,4% (IC 95%: 3,2 a 5,9) para las CP en una serie de 765 pacientes (937 procedimientos). La CP más frecuente fue dehiscencia (68%), seguida de infección (16%), variantes de sangrado (9%) y necrosis (7%). Ninguna fue grave ni incluyó muerte, hospitalización o secuelas permanentes. Conclusiones: La dermatología quirúrgica en el ámbito de una sala de procedimientos es segura y el porcentaje de complicaciones es bajo comparable con lo publicado en la bibliografía internacional. (AU)

Background: Although the global complications in surgical dermatology referred to in the worldwide literature are low (1.64- 4.58%), regional publications with prospective data on them are scarce and nationally non-existent. Objectives: Estimate the incidence of intra-surgical complications (IC) and post-surgical complications (PC) in dermatological surgery procedures and characterize them within the scope of a reference hospital in the Autonomous City of Buenos Aires. Design: Descriptive, prospective, observational and longitudinal research work. Materials and methods: Demographic information of the patient and operative data were collected at the time of the surgical procedure. Surgical complications that occurred up to one month after the procedure on patients undergoing surgery in the surgical dermatology section of the F. J. Muñiz Hospital between February 2015 to March 2018 were classified. Results: The incidence found was 0% (95% CI 0-0.4) for IC and 4.4% (95% CI 3.2-5.9) for PC in a series of 765 patients (937 procedures). The most frequent PC was dehiscence (68%), followed by infection (16%), bleeding variants (9%) and necrosis (7%). Neither the PC were severe, not included death, hospitalization or permanent sequelae. Conclusions: Office based dermatologic surgery is safe and the percentage of complications is low, comparable to that published in the international literature. (AU)

Clinical analysis of the relationship between hemorrhage and position of stigmata in patients with esophageal varices / 中华消化内镜杂志

Objective To investigate the predisposing locations of active hemorrhage in patients with esophageal variceal bleeding. Methods Data of 823 patients with acute esophageal and gastric variceal hemorrhage receiving emergency gastroscopy diagnosed from January 2003 to December 2013 were retrospectively studied. The location and site of active hemorrhage or stigmata were analyzed and its relationship with active hemorrhage was discussed. Results A total of 372(45. 2%,372/823) patients with active bleeding and stigmata were found under emergency endoscopy. Among 372 patients, 190 got accurate hemorrhage and stigmata location and site description. Bleeding or stigmata in 58(30. 5%) patients was 28-32 cm from incisor in group A, and that in 132 (69. 5%) patients was more than 35 cm in group B ( χ2＝57. 642, P＜0. 000 1). In 190 cases, the proportion of bleeding or stigmata at 3:00 point was the highest (37%,70/132), followed by those at 12:00 point(30%,58/132),6:00 point(24%,45/132),and 9:00 point (9%,17/132). The change trend of the percentage of each point in group A and group B was the same as that in all cases. The percentage of almost all points in group B was significantly higher than that in group A except that at 9:00 point ( P＜0. 000 1).Conclusion Esophageal variceal bleeding in cirrhosis is more common at 3:00 point, 6:00 point and 12:00 point of esophagus, and the high risk area is 35 cm below the incisors.

Clinical study on thromboelastography-indicated postoperative blood requirements after abdominal surgery / 中华急诊医学杂志

Objective To investigate the accuracy and promptness of thromboelastography (TEG) to assess the blood transfusion requirements after abdominal operation in comparison with conventional assessments including vital signs (MAP,heart rate,breathing rate),urine output,hemoglobin and hematocrit.Methods From June to December in 2010,there were 57 patients were suspected bleeding in abdominal cavity after operation in SICU.Recorded data including vital signs (MAP,heart rate,breathing rate,oxygen saturation),urine volume per hour,the coagulation tests (Fib,PT,aPTT,INR),TEG parameters (R,K,Angle,MA,CI),the results of blood routine (Hb,Hct,Ph) and whether bleeding or not,blood product requirements within 24 h.Results Vital signs (MAP,heart rate,breathing rate,oxygen saturation),urine output per hour and the coagulation tests (Fib,PT,INR) showed no significant correlations (P ＞ 0.05) with blood transfusion requirements,but aPTT (R =0.513,P =0.000) and MA (R =0.578,P =0.000) correlated with the blood transfusion requirement.Patients with reduced MA needed more blood transfusion requirements.Patients were divided into active bleeding group and insidious bleeding group.MA had significant difference between two groups (P =0.025),but aPTT had not.Conclusions Thrombelastography is a more accurate indicator of blood transfusion requirements,especially in active bleeding patients.

A Clinical Analysis of Patients with Active Small Bowel Bleeding as Detected on Double Balloon Enteroscopy / 대한소화기내시경학회지

BACKGROUND/AIMS: There are few studies that have evaluated active small bowel bleeding. The aim of this study was to evaluate patients with active small bowel bleeding that had been considered as obscure gastrointestinal bleeding an was confirmed by the use of double balloon enteroscopy (DBE). METHODS: We retrospectively reviewed the medical records of 12 patients with active small bowel bleeding as detected on DBE from January 2005 to September 2007. RESULTS: The mean patient age was 63 years (age range, 45~80 years) and the patients consisted of seven men and five women. The mean hemoglobin level at admission was 7.6 g/dL (range, 5.8~9.0 g/dL). The mean transfusion volume was 4.4 pints (range, 0~7 pints). Angiodysplasia was the most common cause of bleeding (n=6, 50%), followed by small bowel tumors (n=4, 33%). Other causes included diverticula and a nonspecific ulcer. The most common location of bleeding was the jejunum. Diagnostic yields of capsule endoscopy, a 99mTc RBC scan, an abdomen CT scan, angiography and a small bowel series were 40%, 33%, 25%, 0% and 0%, respectively. Endoscopic treatment was performed successfully in eight patients (67%). CONCLUSIONS: The most common etiology for active small bowel bleeding is angiodysplasia followed by a small bowel tumor. Other diagnostic methods for the small bowel showed low diagnostic yields. Further investigation of active small bowel bleeding is needed to confirm our results.

Active Bleeding Acre During Surgical Extraction of Mandibular Third Molar: Report of Two Cases

The experienced surgeon can be surprised & challenged by the hazards of active bleeding during oral & maxillofacial surgical procedure, because of alterations in the surgical anatomy, bleeding disorders and surgical intervention of infected tissues. This is a report of two cases of active bleeding during surgical extraction of mandibular third molar, that had the pericoronitis, osteitis and adjacent neurovascular bundle in its apex. When the abrupt active bleeding was occurred during surgical extraction of mandibular third molar, pressure packing by hemostatic agent(bone wax) & wet gauze biting were applied into the extraction socket during 30 minutes. After 30 minutes, the wound was explored about the bleeding and active bleeding was then continued. In spite of repeated bleeding control method of the pressure dressing, the marked hemorrhage was generated continuously. Therefore, the author decised the bleeding as immediately uncontrollable hemorrhage and the pressure dressing was again applied for the more longer duration without wound closure. After 3 days, the pressure dressing was removed and iodoform gauze drainge was then established without the bleeding. The drain was changed as the interval of 3~5 days for prevention of infection & secondary hemorrhage and relatively good wound healing was then resulted in 6 weeks.

Angiographic Embokization in the Control of Bleeding Related to Gynecologic Malignancy / 대한부인종양콜포스코피학회잡지

The use of angiographic embolization gas been well described for the control of gynecologic bleeding. Recently, we have experienced the successful embolization in two case of serons bleeding related to giynecologic malignancy. Clinical evaluation revealed a gynecologic cancer with active bleeding. Becaause we judged that conservative management was unable to cuntrol the bleeding, we underwent an angiographic embolization. The result presented here indicates that angiographic embolization is a relatively safe, effective and rapid procedure that should be considered early in management of gynecohogic cancer bleeding that is unresponsive to conservative management.