Annals of Saudi medicine最新文献

Background: Acute respiratory distress syndrome (ARDS), which results in lung injury as a consequence of sepsis and septic shock, is associated with severe systemic inflammation and is responsible for a high worldwide mortality rate.

Objective: Investigate whether corticosteroids could benefit clinical outcomes in adult with ARDS.

Methods: A comprehensive search of electronic databases Ovid MEDLINE, Ovid EMbase, and Cochrane Library from their inception to 7 May 2023 was conducted to identify studies that met the eligibility criteria, including only randomized controlled trials. The study was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and the methods of trial sequential analysis.

Main outcome measures: Mortality rates, including including the 14-, 28-, 45-, and 60-day mortality, hospital mortality, and intensive care unit (ICU) mortality.

Sample size: 17 studies with 2508 patients.

Results: Data relating to mortality at 14, 28, 45, and 60 days were not significantly different when treatments with corticosteroids and placebo were compared. In terms of hospital and ICU mortality, the mortality of those who had received corticosteroids was significantly lower than that of those who had not. ARDS patients who received assisted ventilation benefited from corticosteroid therapy, as revealed by the significant difference in outcome days between those who received assisted ventilation and those who did not. Corticosteroid had significantly more days free from mechanical ventilation, ICU-free days, and MODS-free days during the first 28 days, but not more organ support-free days up to day 28.

Conclusion: Although corticosteroid therapy did not reduce mortality rates at different observation periods, it significantly reduced hospital and ICU mortality. Administering corticosteroids to ARDS patients significantly decreased the days of assisted ventilation and time cost consumption. This study confirmed that long-term use of low-dose glucocorticoids may have a positive effect on early ARDS.

Limitation: Risk of bias due to the differences in patient characteristics.

Background: Femoral and tibial fractures may result in delayed union and nonunion, posing significant challenges in orthopedic practice. The Ilizarov technique has emerged as a promising solution for managing these complex cases.

Objectives: Evaluate the radiographic and functional results of Ilizarov fixation in the treatment of nonunion of tibia and femur fractures.

Design: Retrospective.

Settings: Hospitals affiliated with a university hospital.

Patients and methods: Patient demographics, fracture characteristics, and treatment details were analyzed for the period from October 2015 to September 2022 in patients who were treated for nonunion of the tibia and femur using the Ilizarov fixator. Clinical and radiological assessments were performed using the Association for the Study and Application of Methods of Ilizarov (ASAMI) criteria. The study focused on assessing the average duration for union and frame removal, bone results, successful union rates, and functional results using the ASAMI criteria, obtaining data from the existing medical records, spanning various medical facilities treating nonunion fractures.

Sample size: 126 patients.

Results: The average duration for union and frame removal was 8 months, with excellent bone results observed in 60.32% of cases. Out of 126 patients, 118 achieved successful union, while there were 2 failure cases necessitating amputation (1.52%). Functional results revealed excellent outcomes in 39.68% of cases. Complications included pin tract infections, ankle and knee stiffness, and limb shortening. External fixation duration and infection eradication were consistent with previous research, emphasizing the technique's effectiveness.

Conclusions: The Ilizarov technique proved highly effective in managing nonunion tibia and femur fractures, offering favorable outcomes in terms of union, infection control, pain relief, and functional recovery. While excellent bone outcomes do not guarantee optimal function, this method remains a reliable approach for complex cases.

Limitations: Potential biases inherent in retrospective analyses and the need for further randomized controlled trials to comprehensively compare treatment modalities.

Background: Anastomotic leakage (AL) represents a severe complication after rectal surgery, leading to significant morbidity, mortality, and increased healthcare costs. Despite improvements in surgical methods and perioperative care, the challenge of AL persists.

Objectives: Explore the impact of body mass index (BMI) on the risk of AL following curative treatment for rectal cancer, providing insight into its predictive value.

Design: Retrospective review.

Settings: Data were collected from a single tertiary center, emphasizing the specialized postoperative outcomes in a high-care setting.

Patients and methods: The study population was comprised patients who underwent sphincter-saving surgery combined with neoadjuvant chemoradiation for rectal cancer from 2001 to 2011. Patients with anastomotic stenosis were excluded.

Main outcome measures: The primary outcome investigated was the occurrence of AL post-surgery. Secondary outcomes included the assessment of local cancer recurrence rates within the AL group.

Sample size: 224; 13 excluded.

Results: Of 237 patients who underwent surgery, 13 with anastomotic stenosis were excluded from this study. Of the remaining 224, 15 individuals (6.3%) developed AL. A potential association between higher BMI and increased AL risk was identified. Additionally, the study noted a higher incidence of local rectal cancer recurrence in the group that developed leakage.

Conclusion: The findings suggest BMI as a significant predictive factor for AL after curative rectal cancer treatment. This emphasizes the need for heightened awareness and possible preoperative counseling for obese patients regarding their increased risk of postoperative leakage.

Limitations: The study was retrospective with all the inherit biases of such studies. The sample size was small and this may have introduced a type 2 statistical error.

Background: Benign paroxysmal positional vertigo (BPPV) is the most common peripheral vestibular condition characterized by short-term vertigo attacks that significantly affect quality of life.

Objectives: Examine how well a single Epley maneuver worked in an outpatient setting for people with posterior canal benign paroxysmal positional vertigo (PC-BPPV) and whether they needed a second Dix-Hallpike maneuver.

Design: Prospective.

Settings: Otorhinolaryngology department of a tertiary care center.

Patients and methods: Sociodemographic data, body mass index (BMI), and systemic disease history of 75 patients diagnosed with PC-BPPV were recorded, and their relationship with success rates after the modified Epley maneuver was analyzed.

Main outcome measures: Detect cases that could not be repositioned with the diagnostic control Dix-Hallpike test performed 20 minutes after the modified Epley reposition maneuver in the same session in PC-BPPV patients.

Sample size: 75.

Results: Of the 75 patients, 31 were male (41.3%), 44 female (58.6%) with a mean (standard deviation) age of 58.6 (15.9) years age, 54.6% had one or more chronic diseases. BMI was 30 mg/kg² and above in 31 patients (41.3%). The modified Epley maneuver was successful in 77.3%. No significant relationship was found between additional diseases or BMI in the patient group in whom the maneuver was unsuccessful.

Conclusion: The success rates of repositioning maneuvers in treating patients diagnosed with PC-BPPV are high. However, more than a single maneuver is required in some resistant patients. Second diagnostic and repositioning maneuvers performed in the same session will reduce multiple hospital admissions. While it is helpful to repeat the maneuver in the patient group where it was unsuccessful, other factors causing the failure should be investigated.

Limitations: Lack of follow-up results of patients after 7-10 days.

Background: Medical treatment, expectant approaches, and surgical treatment options are available in the treatment of ectopic pregnancy. Regardless of the treatment, in addition to its effectiveness, the main concern is to limit the risk of relapse and preserve fertility.

Objectives: Determine the impact of medical or surgical treatment for ectopic pregnancy on future fertility.

Design: Retrospective.

Setting: Department of obstrtrics and gynecolgy at Ankara Etlik Zübeyde Hanım Women's Health Training and Research Hospital, Ankara, Turkey.

Patients and methods: Patients who were treated for ectopic pregnancy between June 2016 and November 2019 were allocated into two groups. Expectant approach or medical treatment by methotrexate constituted the conservative treatment group while salpingectomy by laparoscopy indicated the surgical treatment group.

Main outcome measures: Fertility rates within two years following treatment were evaluated according to treatment options.

Sample size: 202 patients.

Results: Of the 202 patients, 128 had medical treatment and 74 patients had surgical treatment for ectopic pregnancy. Of 272 diagnosed with ectopic pregnancy, 70 were excluded for various reasons. Parity and unemployment rate was significantly higher in the surgical treatment (P=.006 and P=.12, respectively). Moreover, ectopic mass size and serum β-hCG levels were significantly higher in the surgical treatment group (P<.001 and P<.001, respectively). There were no significant differences between the conservative and surgical treatment groups in time to pregnancy (17.0 months vs 19.0 months, P=.255). Similarly, there was no significant difference between the conservative and surgical treatment groups with respect to history of infertility (P=.12). There were no significant differences between the conservative and surgical treatment groups in terms of live birth (51.6% vs 44.6%) and ectopic pregnancy (2.3% vs 1.4%) (P=.72 for both). There was no significant difference between the conservative and surgical treatment groups with respect to infertility rate (35.9% vs 41.9%, P=.72) and admittance to the IVF program (3.9% vs 6.8%, P=.39) following ectopic pregnancy treatment.

Conclusions: Reproductive outcomes did not differ significantly in women undergoing expectant management, medical treatment, and surgery for ectopic pregnancy. This finding suggests that clinicians should not hesitate to act in favor of surgical treatment for ectopic pregnancy even if there were concerns for future fertility.

Limitations: Retrospective study.

Background: Nasopharyngeal carcinoma (NPC) is a rare disease worldwide; To the best of our knowledge, there is no established standard of care specifically tailored for the adolescent population. The majority of existing research relies on retrospective data analysis.

Objective: Evaluate clinical features, treatment results, prognostic factors and late toxicities of locally advanced NPC patients treated with tomotherapy.

Design: Retrospective.

Settings: Tertiary care hospital.

Patients and methods: Between January 2007 and January 2020, we treated patients with NPC, aged between 14 and 21 years, with concomitant chemoradiotherapy using tomotherapy at our institution. We prospectively collected details of clinical characteristics, treatment modalities, outcomes and prognostic factors of these patients and then analysed them retrospectively.

Main outcome measures: 3-5 years overall survival (OS), 3-5 years locoregional control rate, 3-5 years disease-free survival (DFS), prognostic factors.

Sample size: 51 patients.

Results: There were 26 male and 25 female patients included in our study. The mean age was 16.5 years, 5 (9.8%) patients with stage III, and 46 (90.2%) with stage IVa according to the American Joint Committee on Cancer, 8th edition staging system. Most patients (98%) received two or more cycles of induction chemotherapy. All patients received concomitant chemoradiotherapy. The median total dose of radiotherapy delivered was 6600 cGy (range 4800-7000). With a median follow-up of 73 months (range 9-168 months), a 5-year locoregional control rate, 5-year OS and 5-year DFS rates were 100%, 86.8% and 71.7%, respectively. Five years later, disease control was 71.7%. Ten (19.6%) patients had disease recurrence in the form of distant metastases during the follow up.

Conclusions: Helical tomotherapy has an excellent late toxicity profile without compromising clinical outcome for patients with NPC. Radiotherapy remains the mainstay of treatment of nasopharyngeal carcinoma to achieve remarkable local control rates.

Limitations: Single institution experience, small number of patients, and retrospective design.

Background: The current understanding of the correlation between TLR4 gene (toll-like receptor 4) rs4986790 and rs4986791 polymorphisms and asthma susceptibility is inconclusive, with studies and populations yielding conflicting results.

Objectives: Evaluate this relationship using meta-analysis and trial sequential analysis (TSA).

Patients and methods: Databases were systematically queried for relevant articles from the establishment of the database to 19 June 2023 adhering to predefined inclusion and exclusion criteria. Two authors independently conducted screening, data extraction, and quality evaluation. Meta-analysis and TSA were carried out using RevMan 5.4, StataMP 17.0, and TSA 0.9.5.10 Beta, with α=0.05. Subgroup analyses were conducted based on racial demographics. A sensitivity analysis was conducted employing a one-by-one exclusion method. Publication bias was assessed using the Begg and Egger tests.

Main outcome measures: Association of asthma susceptibility with TLR4 gene rs4986790 and rs4986791 polymorphisms.

Sample size: 23 articles included 22 studies on the rs4986790 polymorphism and 11 studies on the rs4986791 polymorphism on the TLR4 gene.

Results: Out of 692 studies screened, 23 met the inclusion criteria. While the overall meta-analysis showed no significant association between the TLR4 rs4986790 polymorphism and asthma susceptibility, subgroup analysis revealed a significant link in the Caucasian population. A significant association was noted in the meta-analysis, particularly among Asian populations, on the rs4986791 polymorphism. The sensitivity analysis indicated that the meta-analysis results were relatively stable. Publication bias analysis revealed minimal influence from publication bias. However, TSA was underscored by the necessity for additional original studies to further validate specific outcomes.

Conclusions: Our study underscores the ethnicity-specific impact on the relationship between TLR4 polymorphisms and asthma susceptibility. While the overall findings for rs4986790 were not significant, the association with the Caucasian population merits further investigation. Furthermore, rs4986791 demonstrated a significant correlation with asthma susceptibility, specifically among Asian populations.

Limitations: Our study predominantly examined the rs4986790 and rs4986791 polymorphisms, overlooking the potential influence of other genetic variants within TLR4.

The effect of mesenchymal stem cells (MSCs) and platelet-rich plasma (PRP) therapy on knee osteoarthritis (KOA) has been contradictory in previous meta-analyses. This umbrella review on published meta-analyses aimed to investigate the effect of MSCs and PRP on KOA. We systematically searched Scopus, PubMed, and Cochrane databases to include related meta-analyses. The outcome included studies reporting visual analog scale scores, the Western Ontario and McMaster Universities Osteoarthritis Index, Whole-Organ Magnetic Resonance Imaging Scores, International Knee Documentation Committee scores, and the Knee injury and Osteoarthritis Outcome Score. A total of 28 meta-analyses with 32 763 participants. MSCs and PRP therapies were significantly associated with an improvement in KOA scores. This umbrella meta-analysis supports the beneficial health effects of MSCs and PRP in KOA.

Background: Community-acquired pneumonia (CAP) is a common reason for intensive care unit (ICU) admission and sepsis. Acute kidney injury (AKI) is a frequent complication of community-acquired pneumonia and is associated with increased short- and long-term morbidity and mortality and healthcare costs.

Objective: Describe the prevalence of AKI in patients with CAP requiring mechanical ventilation and evaluate its association with inhospital mortality.

Design: Retrospective cohort.

Setting: Intensive care unit.

Patients and methods: We included patients with CAP on mechanical ventilation. Patients were categorized according to the development of AKI in the first 24 hours of ICU admission using the Kidney Disease Improving Global Outcomes (KDIGO) classification from no AKI, stage 1 AKI, stage 2 AKI, and stage 3 AKI.

Main outcome measures: The primary outcome was hospital mortality. Secondary outcomes were ICU mortality, hospital and ICU length of stay, ventilation duration, tracheostomy, and renal replacement therapy requirement.

Results: Of 1536 patients included in the study, 829 patients (54%) had no AKI while 707 (46%) developed AKI. In-hospital mortality was 288/829 (34.8%) for patients with no AKI, 43/111 (38.7%) for stage 1 AKI, 86/216 (40%) for stage 2 AKI, and 196/380 (51.7%) for stage 3 AKI (P<.0001). Multivariate analysis revealed that stages 1, 2, or 3 AKI compared to no AKI were not independently associated with in-hospital mortality. Older age, vasopressor use; decreased Glasgow coma scale, PaO₂/Fio₂ ratio and platelet count, increased bilirubin, lactic acid and INR were associated with increased mortality while female sex was associated with reduced mortality.

Conclusion: Among mechanically ventilated patients with CAP, AKI was common and was associated with higher crude mortality. The higher mortality could not be attributed alone to AKI, but rather appeared to be related to multi-organ dysfunction.

Limitations: Single-center retrospective study with no data on baseline serum creatinine and the use of estimated baseline creatinine distributions based on the MDRD (Modification of Diet in Renal Disease)equation which may lead to an overestimation of AKI. Second, we did not have data on the microbiology of pneumonia, appropriateness of antibiotic therapy or the administration of other medications that have been demonstrated to be associated with AKI.

Background: Multiple myeloma (MM) represents the second most common hematologic malignancy (15%). Induction with bortezomib, cyclophosphamide, and dexamthasone VCd (d: low dose dexamthasone) regimen is widely used due to its high effectiveness, low toxicity and good tolerability, particularly with renal impairment. Real-world data on the use of VCD in clinical practice is lacking.

Objectives: Evaluate the real-world experience of the VCD regimen.

Design: Retrospective.

Setting: Tumor registry database of tertiary cancer care center.

Patients and methods: newly diagnosed MM patients who received VCD induction and underwent autologous stem cell transplant (ASCT) from July 2007 to July 2020.

Main outcome measures: response evaluation, progression-free survival (PFS) and overall survival (OS).

Sample size: 87 patients.

Results: Of 102 patients who started induction with VCd, 87 patients experienced a partial response or more overall response rate of 85%). The median age of these 87 patients at diagnosis was 52 years, of which 29.9% presented with renal impairment and 60.3% of patients had stage 2 by the Revised International Staging System (R-ISS). Patients with a standard cytogenetic risk achieved a better response compared to those with a poor cytogenetic risk (P=.044). The post-induction response rates were 6.9% stringent complete remission (sCR), 35% complete remission (CR); 41.4% very good partial response (VGPR), and 16.1% partial response (PR), respectively; the response rates became greater for sCR and CR post-transplantation at day 100 with 16.1% sCR, 35.6% CR, 32.2% VGPR and 16.1% PR, respectively. The median PFS was 49 months and 5 years OS was 84%. PFS was better in patients who achieved sCR vs PR (83 vs 35 months, P=.037). High LDH, high-risk cytogenetic and stage 3 R-ISS showed a worse median PFS and OS.

Conclusions: VCD induction in newly diagnosed MM is highly effective, convenient, tolerable and affordable regimen, especially in low and middle-income countries with limited resources, also with favorable outcomes and survival. while those who did not respond successfully shifted to VRD or VTD.

Limitations: The usual limitations of a retrospective analysis using registry-level data, no data on quality of life.