Treatment For Infected Frozen Elephant Trunk Prosthesis Caused by Propionibacterium acnes: A Surgical Challenge

ABSTRACT In this article, we present the case of a 47-year-old man who underwent Bentall-Bono procedure and frozen elephant trunk prosthesis implantation due to severe aortic regurgitation and aortic dilatation with a second-time endovascular stent-graft repair in descending aorta. Over eight years, a subacute graft infection by Propionibacterium acnes was developed, culminating in cardiogenic shock secondary to severe aortic regurgitation due to a complete aortic root dehiscence because of multiple aortic pseudoaneurysms. The patient underwent emergency surgery in which the replacement of the graft by a biological valve tube was performed accompanied by a complete debranching of the three supra-aortic vessels.

Five-Year Follow-Up After Transcatheter Aortic Valve Implantation in Patients with Severe Aortic Stenosis and Concomitant Coronary Artery Disease: A Single-Center Experience

ABSTRACT Introduction: There is no consensus on the impact of coronary artery disease in patients undergoing transcatheter aortic valve implantation. Therefore, the objective of this study was, in a single-center setting, to evaluate the five-year outcome of transcatheter aortic valve implantation patients with or without coronary artery disease. Methods: All transcatheter aortic valve implantation patients between 2009 and 2019 were included and grouped according to the presence or absence of coronary artery disease. The primary endpoint, five-year all-cause mortality, was evaluated using Cox regression adjusted for age, sex, procedure years, and comorbidities. Comorbidities interacting with coronary artery disease were evaluated with interaction tests. In-hospital complications was the secondary endpoint. Results: In total, 176 patients had aortic stenosis and concomitant coronary artery disease, while 170 patients had aortic stenosis only. Mean follow-up was 2.2±1.6 years. There was no difference in the adjusted five-year all-cause mortality between transcatheter aortic valve implantation patients with and without coronary artery disease (hazard ratio 1.00, 95% confidence interval 0.59-1.70, P=0.99). In coronary artery disease patients, impaired renal function, peripheral arterial disease, or ejection fraction < 50% showed a significant interaction effect with higher five-year all-cause mortality. No significant differences in complications between the groups were found. Conclusion: Five-year mortality did not differ between transcatheter aortic valve implantation patients with or without coronary artery disease. However, in patients with coronary artery disease and impaired renal function, peripheral arterial disease, or ejection fraction < 50%, we found significantly higher five-year all-cause mortality.

Intracorneal implantation of a misdirected foldable intraocular lens during phacoemulsification surgery: a case report / Implantação intracorneana de uma lente intraocular dobrável direcionada incorretamente durante cirurgia de facoemulsificação: relato de caso

ABSTRACT A 59-year-old man presented with a unilateral blurring of vision in his left eye. His left eye's visual acuity was hand movements level. He underwent phacoemulsification surgery, and an intrastromal posterior chamber intraocular lens was implanted. The intrastromal intraocular lens was extracted and a new intraocular lens was implanted. Usinge the Snellen chart, the final best-corrected visual acuity was 20/40. With this case report, we wish to emphasize that a single stepwise clear corneal incision merged with wound-assisted intraocular lens injections can result in intraocular lens misdirection into the corneal stroma. As a result, while performing a misdirected intraocular lens removal, we recommend that the wound be carefully constructed.

RESUMO Um homem de 59 anos apresentou embaçamento visual unilateral no olho esquerdo. Sua acuidade visual nesse olho era no nível de movimentos da mão. O paciente havia se submetido a uma cirurgia de facoemulsificação em que foi feita a implantação intraestromal de uma lente intraocular de câmara posterior. Foi feita a extração dessa lente intraestromal intraocular e uma nova lente intraocular foi implantada. A melhor acuidade visual corrigida final foi de 20/40 pela tabela de Snellen. Com este relato de caso, os autores desejam apontar que uma incisão de degrau único em córnea clara, quando combinada com a injeção de uma lente ocular através da incisão, pode levar a um direcionamento incorreto da lente intraocular para dentro do estroma corneano. Portanto, recomenda-se uma construção cuidadosa da incisão ao se remover uma lente intraocular direcionada incorretamente.

Guia para a elaboração de relatórios fonoaudiológicos de crianças implantadas: opinião de especialistas / Guide to the preparation of speech reports for implanted children: opinion of specialists

RESUMO Objetivo Desenvolver guia para elaboração de relatórios fonoaudiológicos de crianças implantadas para serem compartilhados entre fonoaudiólogos dos serviços de implante coclear (IC) e reabilitadores. Método O método Delphi foi utilizado para selecionar os itens relevantes e fundamentais que deveriam constar nas duas versões propostas para compor o guia: Guia 1 - Relatórios fonoaudiológicos fornecidos pelo serviço de IC aos reabilitadores, e Guia 2 - Relatórios fonoaudiológicos fornecidos pelos reabilitadores aos serviços de IC. Vinte e um fonoaudiólogos especialistas e com experiência na área de implante coclear e de reabilitação auditiva participaram da discussão e do julgamento dos itens durante as rodadas de seleção. Considerou-se consenso quando o item obteve a concordância igual ou superior a 80% entre os participantes, sendo selecionados para comporem os dois guias. Resultados Após as duas rodadas, 21 itens do Guia 1 obtiveram consenso entre os terapeutas, ou seja, mais de 80% deles concordaram que estes itens deveriam estar presentes no relatório enviado pelo serviço de IC. Para o Guia 2, 22 itens analisados pelos fonoaudiólogos atuantes em serviços de IC setor pós-operatório, foram selecionados na segunda rodada. Conclusão A partir da análise das duas rodadas, foi desenvolvido o "Guia para a elaboração de relatórios fonoaudiológicos: intersecção entre serviço de IC e reabilitadores". Este material pode ser aplicado na rotina de acompanhamento de crianças implantadas, padronizando as informações compartilhadas sobre o dispositivo eletrônico, resultados de avaliações, monitoramento dos resultados e processo terapêutico dessa população.

ABSTRACT Purpose To develop a guide for the preparation of speech-language reports of implanted children to be shared among speech-language pathologists of cochlear implant (CI) services and rehabilitation professionals. Methods The Delphi method was used to select the relevant and fundamental items that should be included in the two versions proposed for the guide: Guide 1 - Speech-language reports provided by the CI services to rehabilitators, and Guide 2 - Speech-language reports provided by the rehabilitators to CI services. Twenty-one speech therapists specialized and with experience in cochlear implants and auditory rehabilitation participated in the discussion and judgment of the items during the selection rounds. Consensus was considered when the item reached agreement equal to or greater than 80% among participants, being selected to compose the two guides. Results After the two rounds, 21 items from Guide 1 reached consensus among therapists, that is, more than 80% of them agreed that these items should be present in the report sent by the CI service. For Guide 2, 22 items analyzed by speech therapists working in CI services in the postoperative sector were selected in the second round. Conclusion Based on the analysis of the two rounds, the "Guide for the preparation of speech-language pathology reports: intersection between CI service and rehabilitators" was developed. This material can be applied in the follow-up of implanted children, standardizing the information shared about the electronic device, evaluation results, monitoring of results and therapeutic process of this population.

Partial extraction therapies (PET): a review of the literature / Terapias de extração parcial (TEP): uma revisão da literatura

ABSTRACT One of the most common dental procedures is tooth extraction; however, the bone defect resulting from the process is only partially restored, leading to considerable bone loss. To rehabilitate a fully or partially edentulous patient, we must handle these sites with delicate surgical procedures. There is a large literature presenting attempts to overcome the negative effects of a dental extraction, with the aim of reducing tissue volume loss or restoring the alveolar architecture. In this context, Partial Extraction Therapy (PET) represents a subgroup of interventions to prevent bone loss after extraction using the tooth itself to prevent alveolar bone loss. This literature review aims to make a survey of the published articles on PET, with an emphasis on socket shield technique, and to explain the other techniques such as root burial, pontic-shield and proximal socket-shield, their indications and counter indications in order to deepen the knowledge of these techniques. To identify the included or considered studies, we adopted a detailed search strategy for MEDLINE and Cochrane Library focused in the last 31 years, whose language was English, Spanish or Portuguese. This text presents an analysis of current data regarding the alternatives for alveolar preservation and the installation of immediate implants in these areas, presenting the possibility of a different surgical technique. However, due to the immaturity and lack of conclusive scientific evidence regarding the predictability of the procedures, it is considered that the use of the socket shield technique must be done in an extremely cautious way.

RESUMO Um dos procedimentos odontológicos mais comuns é a extração dentária, contudo, , o defeito ósseo decorrente do processo é apenas parcialmente restaurado, levando a uma perda ossea volumétrica consideravel. Para reabilitar um paciente totalmente ou parcialmente desdentado, devemos manusear estes sitios com intervenções cirúrgicas delicadas. Há uma vasta literatura apresentando tentativas de transpor os efeitos negativos de uma extração dentária, com o objetivo de diminuir a perda volumétrica tecidual ou restaurar a arquitetura alveolar. Neste contexto, a Terapia de Extração Parcial (TEP) representa um subgrupo de intervenções para prevenir a perda óssea após exodontia, usando o próprio dente para prevenir a perda óssea alveolar. Essa revisão de literatura tem por objetivo fazer um levantamento dos artigos publicados sobre as TEP, com ênfase na técnica de socket shield, e explanar a cerca das demais técnicas como sepultamento radicular, pontic-shield e proximal socket-shield, suas indicações e contra-indicações, a fim de aprofundar o conhecimento dessas técnicas. Para a identificação dos estudos inclui?dos ou considerados, adotamos a estrate?gia de busca detalhada para os bancos MEDLINE e Biblioteca Cochrane nos u?ltimos 31 anos, cujo idioma fosse o ingle?s, espanhol ou o portugue?s. Este texto, apresenta uma análise de dados atuais a respeito das alternativas para a preservação alveolar e instalação de implantes imediatos nestas áreas, apresentando a possibilidade de uma técnica cirúrgica diferenciada. No entanto, devido a imaturidade e falta de comprovação cientifica contundente a respeito da previsibilidade dos procedimentos, considera-se que o emprego da técnica de socket shield deve ser feito de forma cautelosa.

Tecnologia auditiva assistiva em usuários de implante coclear em ambientes reverberantes com múltiplas fontes de ruído / Assistive listening technology in cochlear implant users in reverberant environments with multiple noise sources

RESUMO Objetivo Avaliar a contribuição da tecnologia de escuta assistida em usuários de implante coclear (IC) em situações de reverberação e ruído. Métodos Estudo transversal prospectivo aprovado pelo Comitê de Ética Institucional (CAAE 8 3031418.4.0000.0068). Foram selecionados adolescentes e adultos usuários de IC com surdez pré ou pós-lingual. Para usuários bilaterais, cada orelha foi avaliada separadamente. O reconhecimento de fala foi avaliado por meio de listas gravadas de palavras dissílabas apresentadas a 65 dBA a 0° azimute com e sem o Mini Microfone2 (Cochlear™) conectado ao processador de fala Nucleus®6. A reverberação da sala foi medida como 550 ms. Para avaliar a contribuição do dispositivo de escuta assistida (DEA) em ambiente reverberante, o reconhecimento de fala foi avaliado no silêncio. Para avaliar a contribuição do DEA em reverberação e ruído, o reconhecimento de fala foi apresentado a 0° azimute com o ruído proveniente de 8 alto-falantes dispostos simetricamente a 2 metros de distância do centro com ruído de múltiplos falantes usando relação sinal-ruído de +10dB. Para evitar viés de aprendizado ou fadiga, a ordem dos testes foi randomizada. A comparação das médias foi analisada pelo teste t para amostras pareadas, adotando-se nível de significância de p<0,005. Resultados Dezessete pacientes com idade média de 40 anos foram convidados e concordaram em participar, sendo 2 participantes bilaterais, totalizando 19 orelhas. Houve contribuição positiva significante do Mini Mic2 na reverberação e ruído+reverberação (p<0,001). Conclusão DEA foi capaz de melhorar o reconhecimento de fala de usuários de IC tanto em situações de reverberação quanto ruidosas.

ABSTRACT Purpose This study aimed to evaluate the contribution of assistive listening technology with wireless connectivity in cochlear implant (CI) users in reverberating and noise situations. Methods Prospective cross-sectional study approved by the Institutional Ethics Committee (CAAE 8 3031418.4.0000.0068). Adolescents and adults CI users with pre- or post-lingual deafness were selected. For bilateral users, each ear was assessed separately. Speech recognition was assessed using recorded lists of disyllabic words presented at 65 dBA at 0° azimuth with and without the Wireless Mini Microphone 2 (Cochlear™) connected to the Nucleus®6 speech processor. Room reverberation was measured as 550 ms. To assess the contribution of the assistive listening device (ALD) in a reverberating environment, speech recognition was assessed in quiet. To assess the contribution of the ALD in reverberation and noise, speech recognition was presented at 0° azimuth along with the noise coming from 8 loudspeakers symmetrically arranged 2 meters away from the center with multi-talker babble noise using signal to noise ratio of +10dB. To avoid learning bias or fatigue, the order of the tests was randomized. Comparison of means was analyzed by t test for paired samples, adopting significance level of p <0.005. Results Seventeen patients with a mean age of 40 years were invited and agreed to participate, with 2 bilateral participants, totaling 19 ears assessed. There was a significant positive contribution from the Mini Mic2 in reverberation, and noise+reverberation (p <0.001). Conclusion ALD was able to improve speech recognition of CI users in both reverberation and noisy situations.

Recommendations for post-rehabilitation care of maxillofacial prostheses

Aim: This study aimed to review the scientific literature to describe the main care and hygiene protocols for different types of maxillofacial prostheses (MFP). Methods: A bibliographic search on the PubMed / Medline database using the following keywords: ["maxillofacial prosthesis" OR "ocular prostheses" OR "palatal obturators"] AND ["Cleaning" OR "disinfection"] AND ["care"] AND ["color stability"] OR ["denture cleansers" OR "cleansing agents"]. Articles addressing materials, cleaning and disinfection protocols, and care related to MFP were included. The following exclusion criteria were applied: no adequate methodology, incompatibility with the area of interest, and unavailability for reading in full. Results: The papers were grouped into the following topics: facial prostheses, ocular prostheses, maxillofacial intraoral prostheses, and retention systems. Conclusion: Despite the MFP changes over time, its degradation decreases upon following the recommendations and post-adaptation care. The guidelines for cleaning and disinfection must be individualized to guarantee the longevity of the prosthesis and the patient health

Echo-guiding percutaneous aortic stent implantation for coarctation of the aortic: A case report / 中国胸心血管外科临床杂志

@#Currently, transcatheter intervention has emerged as a first-line treatment for coarctation of the aortic. Due to the radiation exposure associated with catheter interventional therapy, there are numerous restrictions, which harms both patients and medical personnel and is dependent on sizable radiation apparatus. Here, we report for the first time a case of echo-guiding percutaneous aortic stent implantation for a 27 years female patient of reproductive age. After discharge, the patient's aortic coarctation pressure decreased to 18 mm Hg, and the surgical results were satisfactory.

Progress in diagnosis and treatment of biliary anastomotic stricture after liver transplantation / 器官移植

In recent years, with the development of organ preservation, surgical techniques, perioperative management and immunosuppression regimens, the success rate of liver transplantation and survival rate of the recipients have been significantly enhanced. Liver transplantation has become the optimal treatment for patients with end-stage liver disease. However, biliary complications still commonly occur after liver transplantation, especially biliary anastomotic stricture. Severe biliary anastomotic stricture will not only increase the cost of treatment, but also lead to graft loss and even affect the survival rate of recipients. Therefore, timely diagnosis and treatment of biliary anastomotic stricture play a significant role in improving the survival rate of liver transplant recipients. In this article, the risk factors, clinical symptoms, diagnosis and treatment of biliary anastomotic stricture after liver transplantation were reviewed, aiming to provide novel ideas for the research, diagnosis and treatment of biliary anastomotic stricture after liver transplantation, and further enhance clinical efficacy of liver transplantation and the quality of life of recipients.

Vector analysis of toric implantable collamer lens V4c implantation in correcting moderate to high myopia with high astigmatism / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To evaluate the clinical effect of toric implantable collamer lens(TICL)V4c for correcting moderate to high myopia with high astigmatism using vector analysis and quality of life impact of refractive correction(QIRC).METHODS: Retrospective case series. A total of 55 patients(90 eyes)with moderate to high myopia and high astigmatism who received TICL V4c implantation in the refraction surgery center of ophthalmology department in our hospital from January 2019 to December 2022 were collected. Followed-up for 1 a, the uncorrected distance visual acuity(UDVA), best corrected visual acuity(BCVA)and diopters were observed. Alpins vector analysis was used to evaluate the effect of astigmatism correction, and QIRC scale was used to evaluate patients' quality of life.RESULTS: At 1 a postoperatively, the UDVA of 98% eyes was the same or better than pre-operative BCVA, the safety index was 1.11±0.14, and the efficacy index was 1.11±0.15. The angle of error of 97% of the astigmatic eyes was within ±15°. The results of vector analysis showed that correction index was 0.83±0.13, angle of error was 1.00±4.49°, and index of success was 0.21±0.15. The total higher order aberrations under a pupil diameter of 6 mm was significantly increased compared with preoperatively(P&#x003C;0.05), the QIRC score was significantly better than that before surgery(P&#x003C;0.001), and the increase of total QIRC scores was positively correlated with preoperative spherical equivalent(rs=0.215, P&#x003C;0.05), indicating that the higher degree of myopia before surgery the patients, the better the quality of life after TICL implantation.CONCLUSION: TICL V4c implantation for the correction of moderate to high myopia with high astigmatism is safe and effective, and the patients' quality of life significantly improved after surgery.

Effects of femtosecond laser-assisted cataract surgery combined with intraocular lens implantation on postoperative deviation rate of multifocal intraocular lens and visual quality in cataract patients / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To explore the effects of femtosecond laser-assisted cataract surgery combined with intraocular lens implantation(FLACS-IOL)on postoperative deviation rate of multifocal intraocular lens(MIOL)and visual quality in cataract patients.METHODS: In the prospective study, 95 patients with cataract(108 eyes)who underwent MIOL implantation in the hospital between January 2021 and December 2022 were enrolled. According to different surgical methods, they were divided into FLACS group(51 cases, 56 eyes)and Phaco group(44 cases, 52 eyes). The operation time, incision diameter of anterior capsule, effective phaco time(EPT), cumulative dissipated energy(CDE), uncorrected distance visual acuity(UCDVA), best corrected distance visual acuity(BCDVA), eccentricity distance of IOL and deviation rate at 3 mo after surgery, total high order aberration(HOA), Trefoil and coma under 3 mm pupil were compared between the two groups.RESULTS: The operation time in the FLACS group was significantly shorter than that in the Phaco group, EPT and CDE were significantly lower than those in the Phaco group(all P&#x003C;0.05). There was no significant difference in incision diameter of anterior capsule between the two groups(P&#x003E;0.05). At 1 wk, 3 mo after surgery, UCDVA in the FLACS group was better than that in the Phaco group(all P&#x003C;0.05). There were significant difference in UCDVA at 1 wk, 3 mo after surgery or BCDVA at 3 mo after surgery between the two groups(P&#x003C;0.05). At 3 mo after surgery, eccentricity distance of IOL in the FLACS group was shorter than that in the Phaco group, and deviation rate was significantly lower than that in the Phaco group(all P&#x003C;0.05). Under pupil diameter of 3 mm, HOA, trefoil and coma of whole eyes were decreased in both groups at 3 mo after surgery(P&#x003C;0.05). At 3 mo after surgery, there were significant differences in HOA and trefoil of whole eyes between the FLACS group and Phaco group(P&#x003C;0.05), but there was no significant difference in coma at 3 mo after surgery(P&#x003E;0.05).CONCLUSION: FLACS-IOL can effectively reduce deviation rate of IOL and obtain better visual quality in cataract patients.

Phacoemulsification combined with capsular tension ring and intraocular lens implantation in the treatment of high myopia with cataract / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To observe the efficacy of phacoemulsification combined with capsular tension ring and intraocular lens implantation in the treatment of high myopia with cataract.METHODS: Retrospective study. A total of 82 cases(82 eyes)of high myopia complicated with cataract who admitted to the cataract department of our hospital from December 2021 to April 2023 were selected as study objects, and they were divided into control group(n=39)and combination group(n=43)according to whether or not the capsular tension ring was used intraoperatively. Patients in the control group were treated with intraocular lens implantation alone, and those in the combination group were treated with phacoemulsification combined with capsular tension ring and intraocular lens implantation. The preoperative and postoperative best corrected visual acuity, central anterior chamber depth, trabecular ciliary process, visual quality and complications were compared.RESULTS: At 1 mo after surgery, the best corrected visual acuity(LogMAR)of both groups increased significantly(combination group: 0.64±0.28 vs 0.12±0.14; control group: 0.62±0.26 vs 0.23±0.25, both P&#x003C;0.001). Central anterior chamber depth in both groups were higher than those before surgery(combination group: 2.57±0.56 vs 1.97±0.40 mm; control group: 2.22±0.45 vs 1.89±0.37 mm; both P&#x003C;0.001), and the best corrected visual acuity and central anterior chamber depth of the combination group were significantly better than those of the control group(both P&#x003C;0.05). The distance of trabecular ciliary process showed no statistical significance(combination group: 0.68±0.22 vs 0.74±0.20 mm; control group: 0.74±0.19 vs 0.78±0.17 mm, both P&#x003E;0.05). The visual quality scores of the combination group were all higher than the control group at 1 mo after surgery [watching TV: 3.00±0.38 vs 2.22±0.46 points; reading books: 2.85±0.42 vs 2.21±0.44 points; night vision: 2.71±0.34 vs 2.37±0.41 points; fine operation: 2.82±0.38 vs 2.33±0.40 points, all P&#x003C;0.001]. The incidence of complication in the combination group was significantly lower than that of the control group(33% vs 14%, P&#x003C;0.05).CONCLUSION: Phacoemulsification combined with capsular tension ring and intraocular lens implantation can effectively promote the recovery of visual function, improve the structure of chamber angle, and reduce the incidence of complications in the treatment of patients with high myopia and cataract.

Research progress of corneal lens technique for keratoconus / 国际眼科杂志(Guoji Yanke Zazhi)

Keratoconus is a chronic non-inflammatory corneal disease characterized by thinning and localized protrusion of the corneal stroma in a conical shape. It often leads to irreversible irregular astigmatism and varying degrees of decline in corrected visual acuity. With the rise of femtosecond laser refractive surgery, corneal lenses were discovered as a good biological material. Corneal lens implantation of the cornea can increase the thickness of the cornea and delay the progression of keratoconus disease for further treatment. Currently, convex lenses obtained from myopic small incision lenticule extraction(SMILE)surgery and concave lenses obtained from farsighted SMILE surgery, as well as parallel lenses obtained from donors, can be implanted into the cornea with the aid of femtosecond lasers as lens materials. This article will summarize and discuss the above three lens material implantation methods to provide reference for the selection of keratoconus treatment.

Aesthetic effect evaluation of the xenogeneic collagen matrix in keratinized mucosa augmentation around dental implants / 口腔疾病防治

Objective@#To evaluate the stability and aesthetic effect of a xenogeneic collagen matrix (mucograft) on achieving an adequate keratinized mucosa width (KMW) around implants and to provide a reference basis for the clinical application of xenogeneic collagen matrix materials.@*Methods@#The hospital ethics committee approved the study protocol, and the patients provided informed consent. Twenty patients with a KMW<2 mm at the buccal implant site who were treated in Binzhou Medical University Affiliated Yantai Stomatological Hospital from July 2020 to September 2022 were included, and a total of 36 implants were included. The mean age of the patients was (52.0±10.4) years, of which 18 were females and 2 were males. They were divided into a free gingival graft group (FGG, control group) and a xenogeneic collagen matrix group (test group) according to different graft materials. The incremental effect of the KMW on the buccal side of the implant and the mucosal shrinkage rate was measured at 1 month and 3 months after the operation. The mucosal scar index (MSI) was evaluated after the operation.@*Results@#At 3 months postoperatively, the KMW was (3.67 ± 1.06) mm in the control group and (2.96 ± 0.98) mm in the test group, and the difference was statistically significant (t = 2.076, P<0.05). The KMW shrinkage rate was (33.34 ± 16.30) % in the test group and (22.05 ± 15.47) % in the control group at 1 month postoperatively and (51.95 ± 12.60) % in the test group and (37.44 ± 16.30) % in the control group at 3 months postoperatively, with statistically significant differences between the two groups at the same time points (P<0.05). Three months after surgery, the test group showed significantly better outcomes than the control group in terms of the five scar indicators (scar width, scar convexity, scar color, scar trace, and overall appearance), and the difference was statistically significant (P<0.05).@*Conclusion@#Xenogeneic collagen matrix can increase the peri-implant KMW and achieve a more natural and coordinated soft tissue aesthetic effect but with a higher shrinkage rate.

Research progress of long-term efficacy after implantation of implantable collamer lens V4c / 国际眼科杂志(Guoji Yanke Zazhi)

With the rapid development of science and technology and the wide application of electronic products, the number of patients with high myopia is gradually increasing. Meanwhile, owing to the continuous optimization of surgical skils and the continuous advancement in materials of posterior chamber intraocular lens and manufacturing processes, implantable collamer lens(ICL)V4c implantation has gradually become one of the main surgeries for the treatment of high myopia. In the rapid era of social information, people pay more attention to the long-term efficacy after ICL V4c implantation, they not only want clear vision, but also the pursuit of visual comfort and durability. Therefore, this paper will specifically discuss the research progress of the post-implantation efficacy of ICL V4c with at least 2 a of follow-up observation within 3 a, aiming to review the latest research progress on the long-term efficacy of ICL V4c implantation from the three dimensions of visual quality, safety, efficacy and stability and possible surgical complications after ICL V4c implantation.

Comparison of clinical efficacy and stability of Toric implantable collamer lens implantation in different orientations / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To compare the clinical efficacy, vault, and rotational stability of horizontal, oblique, and vertical implantation of Toric implantable collamer lens(TICL).METHODS: Retrospective cohort study. A total of 92 cases(120 eyes)who underwent TICL implantation from July 2018 to March 2022 and had regular follow-up for at least 1 a postoperatively(1 d, 1 wk, 1, 3, 6 mo, and 1 a)at Wuhan Bright Eye Hospital were collected. The patients were divided into three groups, with 34 cases(45 eyes)in horizontal implantation group, 25 cases(29 eyes)in oblique implantation group(29 cases), and 33 cases(46 eyes)in vertical implantation group. Uncorrected distance visual acuity(UDVA), corrected distance visual acuity(CDVA), diopters, vault, and rotation angle(deviation of the actual axis of TICL from the expected axis).RESULTS: All surgeries were uneventful, and there were no complications such as infection, secondary glaucoma, or cataract opacity. Safety and efficacy of the surgery: the CDVA of the three groups of patients was better than or equal to the preoperative CDVA at 1 a postoperatively, and there was no statistically significant differences in postoperative UDVA and CDVA of the three groups(P&#x0026;#x003E;0.05). The safety index at 1a postoperatively was 1.34±0.21, 1.34±0.17, and 1.31±0.18 for the horizontal, oblique, and vertical groups, respectively. The efficacy index was 1.26±0.21, 1.33±0.18, and 1.27±0.16 for the three groups, respectively, both with no statistically significant differences(P&#x0026;#x003E;0.05). Vault: there was a significant difference in postoperative vault among the three groups(P=0.003), with the vertical group having the lowest vault, followed by the horizontal group and the oblique group. The vaults at different follow-up time points within each group showed significant differences(P&#x0026;#x003C;0.001), and all decreased over time. Residual astigmatism: there was no significant difference in residual astigmatism among the three groups(P=0.130), but there were differences at different follow-up time points within each group(P&#x0026;#x003C;0.001). Rotation angle: no significant differences in rotation angle were observed among the three groups(P=0.135), but there were differences at different follow-up time points within each group(P&#x0026;#x003C;0.001).CONCLUSION: The implantation of TICL in different orientations has good safety and efficacy, the postoperative rotational stability is good, and the appropriate angle can be selected to implant TICL according to the clinical situation.

Mechanism of HMGB1 in scarring after glaucoma drainage valve implantation / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To explore the dynamic expression of high mobility group box 1(HMGB1)in scar tissues after glaucoma drainage valve implantation, and to further reveal the role and possible mechanism of HMGB1 in scarring after glaucoma surgery.METHODS: A total of 60 New Zealand white rabbits were randomly divided into control group(n=20), model group(n=20, silicone implantation under conjunctival sac)and model with drug administration group(n=20, silicone implantation under conjunctival sac combined with 5-fluorouracil injection). The conjunctival tissues were collected at 4 and 8 wk after surgery. HE staining and Masson staining were used to detect the proliferation and distribution of fibroblasts and collagen fibers in conjunctival tissues. Immunohistochemistry was utilized to detect the distribution and changes of HMGB1, transforming growth factor(TGF)-β1, Smad3 and α-smooth muscle actin(SMA)in conjunctival tissues. RT-PCR and Western blot were adopted to detect the mRNA and protein expression of HMGB1, TGF-β1, Smad3 and α-SMA in conjunctival tissues.RESULTS: HE staining and Masson staining showed that the proliferation of inflammatory cells, fibroblasts and collagen fibers in the model group was significantly higher than that in the control group at both 4 and 8 wk. Meanwhile, the proliferation of fibroblasts and collagen fibers in the model with drug administration group was significantly lower than that in the model group. Immunohistochemical staining showed that the expression of HMGB1, TGF-β1, Smad3 and α-SMA protein was observed in the conjunctival tissues of the model group both 4 and 8 wk, with brown and significantly deeper staining of the model group at 8 wk. Meanwhile, the positive staining in the model with drug administration group at both 4 and 8 wk was significantly lower than that in the model group. There was positive correlations between the number of fibroblasts stained with HE and the expression of HMGB1 in the conjunctival tissue of the model group at both 4 and 8 wk(r=0.602, 0.703, all P&#x0026;#x003C;0.05). RT-PCR and Western blot revealed that the mRNA and protein expression levels of HMGB1, TGF-β1, Smad3 and α-SMA in the model group were significantly higher than those in the control group at both 4 and 8 wk(all P&#x0026;#x003C;0.05). Meanwhile, the mRNA and protein expression levels of HMGB1, TGF-β1, Smad3 and α-SMA in the model with drug administration group were significantly lower than those in the model group(all P&#x0026;#x003C;0.05). There was positive correlations between mRNA expressions of HMGB1 and TGF-β1, Smad3 in the model group and the model with drug administration group(all P&#x0026;#x003C;0.05).CONCLUSION: The expression of HMGB1 increased at a time-dependent manner after glaucoma valve implantation. HMGB1 acts an indispensable role in the initiation and progression of scar formation after glaucoma surgery, which may be involved in the regulation of TGF-β/Smad signaling pathway.

Application of socket-shield technique for immediate implant placement and provisionalization in esthetic zone: a case report and literature review / 口腔疾病防治

Objective@#To investigate the effect of the socket-shield technique (SST) concurrent with immediate implant placement and provisionalization (IIPP) in the aesthetic restoration of anterior teeth.@*Methods@#A case of maxillary anterior tooth stumps with a thin labial bone wall was treated with SST for preservation of labial soft and hard tissue fullness, combined with an immediate implant placement and immediate provisional crown for restoring the shape of the tooth and gingival molding@*Results@#Immediate implant placement and provisionalization restored the morphology and function of the affected tooth in the shortest possible time. The patient's labial soft and hard tissue contours in the affected tooth area were well preserved in the 18-month follow-up after the application of the SST, which presented a better aesthetic result. The literature review indicates that the indications for SST are unrestorable maxillary anterior teeth, whose dental, periodontal and periapical tissues are healthy and intact. In the esthetic zone, root shielding is effective in maintaining the soft and hard tissue contour on the labial side of the implant. However, there is no consensus on the technical details of SST, such as the ideal coronal height and thickness of the shield, and the management of the gap between the shield and the implant. Thus, more clinical studies and histologic evidence are needed to provide a reference for clinical decision-making. In addition, digital technology can improve the accuracy of implant placement and shield preparation.@*Conclusion@#The correct application of SST combined with IIPP in the esthetic zone can ensure esthetic results. However, more high-quality evidence-based medical evidence is needed for its long-term efficacy, and indications should be strictly controlled during clinical application.

Qual o impacto da capsulectomia nos sintomas sistêmicos atribuídos às próteses mamárias de silicone? Revisão sistemática da literatura / What is the impact of capsulectomy on systemic symptoms attributed to silicone breast implants? Systematic literature review

Introdução: Diversos estudos têm analisado a possível relação entre a prótese mamária de silicone e sintomas sistêmicos. A remoção das próteses de mama com capsulectomia tem sido indicada na tentativa de melhorar esses sintomas. É necessário que o cirurgião tenha dados embasados na literatura para informar ao paciente se há relação entre retirada de prótese de mama com capsulectomia e melhora dos sintomas, qual a taxa de melhora e por quanto tempo se mantém. Método: Foi realizada pesquisa nos bancos de dados virtuais Cochrane Library e PubMed de janeiro de 1990 até abril de 2023. A busca foi realizada pela combinação de termos livres ("breast implant illness", "breast capsulectomy" e "breast implant explantation") e pelo uso de operadores booleanos para descritores Mesh como [autoimmune diseases (MeSH Terms)] e [breast implant (MeSH Terms)]. Resultados: Foram obtidos 1.203 artigos, sendo 14 selecionados para o estudo, consistindo em 7 artigos de coorte retrospectivo, 3 de coorte prospectivo e 4 caso-controle. A taxa de melhora variou entre 50 e 100% dos casos e o tempo de acompanhamento variou entre 2 meses e 2,7 anos. Diversos tipos de capsulectomia foram realizados nos estudos, com taxas semelhantes de melhora. Conclusão: Há evidências de melhora dos sintomas sistêmicos em pacientes com prótese mamária de silicone submetidas a retirada de prótese de mama com capsulectomia. A melhora dos sintomas persistiu durante o período em que as pacientes foram acompanhadas nos estudos. Estudos mais recentes demonstraram que o tipo de capsulectomia não tem influência na melhora dos sintomas sistêmicos.

Introduction: Several studies have analyzed the possible relationship between silicone breast implants and systemic symptoms. Removal of breast implants with capsulectomy has been indicated in an attempt to improve these symptoms. The surgeon must have data based on the literature to inform the patient whether there is a relationship between the removal of a breast prosthesis with capsulectomy and improvement in symptoms, what is the rate of improvement, and how long it lasts. Method: A search was carried out in the Cochrane Library and PubMed virtual databases from January 1990 to April 2023. The search was carried out using a combination of free terms ("breast implant illness", "breast capsulectomy," and "breast implant explantation") and by using Boolean operators for Mesh descriptors such as [autoimmune diseases (MeSH Terms)] and [breast implant (MeSH Terms)]. Results: 1,203 articles were obtained, 14 of which were selected for the study, consisting of 7 retrospective cohort articles, 3 prospective cohort articles, and 4 case-control articles. The improvement rate varied between 50 and 100% of cases, and the follow-up time varied between 2 months and 2.7 years. Several types of capsulectomies were performed in the studies, with similar rates of improvement. Conclusion: There is evidence of improvement in systemic symptoms in patients with silicone breast implants who underwent breast implant removal with capsulectomy. The improvement in symptoms persisted during the period in which the patients were followed in the studies. More recent studies have demonstrated that the type of capsulectomy does not influence the improvement of systemic symptoms.

Evaluation of Cardiovascular Parameters of ASA I and ASA II Patients Undergoing Dental Implant Surgery Under Intravenous Sedation with Midazolam: A Retrospective Analysis

The purpose of this research was to compare the vital signs of ASA II patients undergoing dental implant surgery under intravenous anesthesia to those of ASA I patients. From a specialist course in Implant Dentistry, 41 medical records (22 ASA I and 19 ASA II patients) were analyzed. Age, gender, ASA classification, blood pressure, heart rate, and oxygen saturation were all measured. Pre-surgery, following the onset of local anesthetic, at the end of the initial implant insertion, and at the end of surgery were all used to collect vital signs. Student's t-test (p<0.05) was used to determine inter- and intra-group data associations. The crossing of operative moments pre-surgical and installation of the first implant in both systolic (p<=0.01) and diastolic (p<=0.03) pressure was statistically significant in ASA I patients. In contrast, there was only a statistical difference in the verification of peripheral oxygen saturation data at preoperative and local anesthesia times in ASA II patients (p<=0.04). When comparing the time of installation of the first implant (p<=0.03) and at the end of surgery (p<=0.02), with respect to systolic pressure, ASA II presented statistically higher, while variable oxygen saturation at the beginning of local anesthesia in ASA I was statistically higher (p<=0.04). It is proposed that intravenous sedation acts in a compensatory manner in patients with systemic disease, leading both groups' behavior to be similar.

El propósito de esta investigación fue comparar los signos vitales de pacientes ASA II sometidos a cirugía de implante dental bajo anestesia intravenosa con los de pacientes ASA I. Se analizaron 41 historias clínicas de un curso de especialista en Implantología (22 pacientes ASA I y 19 ASA II). Se midieron la edad, el sexo, la clasificación ASA, la presión arterial, la frecuencia cardíaca y la saturación de oxígeno. Se tomarn los signos vitales antes de la cirugía, después del inicio de la anestesia local, al final de la inserción inicial del implante y al final de la cirugía. Se utilizó la prueba t de Student (p<0,05) para determinar las asociaciones de datos entre e intragrupos. El cruce de los momentos operatorios prequirúrgicos y de instalación del primer implante tanto en la presión sistólica (p<=0,01) como en la diastólica (p<=0,03) fue estadísticamente significativo en los pacientes ASA I. En contraste, solo hubo diferencia estadística en la verificación de los datos de saturación periférica de oxígeno en el momento preoperatorio y de anes- tesia local en los pacientes ASA II (p<=0,04). Al comparar el tiempo de instalación del primer implante (p<=0,03) y al final de la cirugía (p<=0,02), con respecto a la presión sistólica, el ASA II se presentó estadísticamente mayor, mientras que la variable saturación de oxígeno al inicio de la anestesia local en El ASA I fue estadísticamente mayor (p<0,4). Se propone que la sedación intravenosa actúa de forma compensatoria en pacientes con enfermedad sistémica, lo que hace que el comportamiento de ambos grupos sea similar.