An international multicenter study comparing COVID-19 omicron outcomes in patients with hematological malignancies treated with obinutuzumab versus rituximab.

OBJECTIVES: Hematological malignancy (HM) patients treated with anti-CD20 monoclonal antibodies are at higher risk for severe COVID-19. A previous single-center study showed worse outcomes in patients treated with obinutuzumab compared to rituximab. We examined this hypothesis in a large international multicenter cohort. METHODS: We included HM patients from 15 centers, from five countries treated with anti-CD20, comparing those treated with obinutuzumab (O-G) to rituximab (R-G) between December 2021 and June 2022, when Omicron lineage was dominant. RESULTS: We collected data on 1048 patients. Within the R-G (n = 762, 73%), 191 (25%) contracted COVID-19 compared to 103 (36%) in the O-G. COVID-19 patients in the O-G were younger (61 ± 11.7 vs. 64 ± 14.5, p = 0.039), had more indolent HM diagnosis (aggressive lymphoma: 3.9% vs. 67.0%, p < 0.001), and most were on maintenance therapy at COVID-19 diagnosis (63.0% vs. 16.8%, p < 0.001). Severe-critical COVID-19 occurred in 31.1% of patients in the O-G and 22.5% in the R-G. In multivariable analysis, O-G had a 2.08-fold increased risk for severe-critical COVID-19 compared to R-G (95% CI 1.13-3.84), adjusted for Charlson comorbidity index, sex, and tixagevimab/cilgavimab (T-C) prophylaxis. Further analysis comparing O-G to R-G demonstrated increased hospitalizations (51.5% vs. 35.6% p = 0.008), ICU admissions (12.6% vs. 5.8%, p = 0.042), but the nonsignificant difference in COVID-19-related mortality (n = 10, 9.7% vs. n = 12, 6.3%, p = 0.293). CONCLUSIONS: Despite younger age and a more indolent HM diagnosis, patients receiving obinutuzumab had more severe COVID-19 outcomes than those receiving rituximab. Our findings underscore the need to evaluate the risk-benefit balance when considering obinutuzumab therapy for HM patients during respiratory viral outbreaks.

Prevalence of and Risk Factors for Skin Picking Disorder Symptoms Among Adults in an Arab Middle Eastern Population: A Cross-Sectional Study.

Introduction: Skin Picking Disorder (SPD) is a skin-related disease, also recognized as psychogenic excoriation, dermatillomania, or excoriation disorder. SPD is defined as a habitual picking of skin, which in turn harms skin tissue. Given the paucity of information on SPD symptoms, their prevalence, and risk factors in Saudi Arabia, the present study seeks to fill this gap by investigating these factors in a community sample from Jeddah. Methods: This descriptive cross-sectional study was conducted in the city of Jeddah. The Skin Picking Scale-Revised (SPS-R) scale was administered to a convenience sample of 520 respondents. A partial least squares path model (PLS-PM) for "impairment" and "symptoms severity" subscales was assessed by evaluating the validity of measurement and structural models. Results: Skin picking behavior was reported by 28.8% (n=150). A significant level of skin picking disorder symptoms was present in 1.2% (n=6). Skin picking visual effect, depressive symptoms, and being unmarried were the only positive independent predictors of the total SPS-R score. Conclusion: SPD symptoms are relatively common among the adult population in Jeddah, but those with threshold symptoms indicative of SPD are relatively few. Such behavior is particularly common in vulnerable groups such as those with depressive symptoms and the unmarried. More attention to this condition by clinicians will improve the quality of life of those affected, and reduce the emotional and physical health consequences of this often unrecognized condition.

Trichotillomania Prevalence in an Arab Middle Eastern Population.

Aim: Trichotillomania (TTM) (hair-pulling disorder) is a relatively rare psychiatric condition. We are aware of no studies of this disorder in Arab Middle Eastern populations. We examine the prevalence and correlates of TTM in a community sample of individuals living in a large port city in western Saudi Arabia. Methods: An observational cross-sectional study of 511 adults aged 18 years or over living in Jeddah, Saudi Arabia, was conducted. After inquiring about demographic information and self-reported psychiatric disorders, the Massachusetts General Hospital Hair-Pulling Scale (MGH-HPS) was administered to assess symptoms of TMM. Results: A total of 9 of 511 participants (1.8%) scored above the cutoff for suspected TTM on the MGH-HPS, whereas 203 (39.7%) had a history of hair-pulling. Those with suspected TTM were more likely to be female (2.8% vs 0.4% in males, P = 0.047) and somewhat more likely to have a history of obsessive-compulsive disorder (OCD) (6.7% vs 1.5%, P = 0.093). Hair pulling was also more common in unmarried, not living with family, and unemployed. Among those with a history of hair-pulling, the most frequent locations were from the face (62.7%), head (55.7%), and legs (15.3%). Conclusions: While a history of hair-pulling is common in this community sample (40%), suspected TTM is much less prevalent (<2%), although not rare by any means. When present, the condition is more common in women and possibly in those with OCD.

Body Dysmorphic Disorder Symptoms: Prevalence and Risk Factors in an Arab Middle Eastern Population.

Background: The present study examined the prevalence of and risk factors for symptoms of body dysmorphic disorder (BDD) in the general population of Jeddah, a large port city in Saudi Arabia. Methods: This cross-sectional study surveyed a convenience sample of 520 adults. We used a validated self-screening measure to assess BDD, the body dysmorphic disorder questionnaire (BDDQ). Results: The prevalence of significant BDD symptoms among the general Saudi population was 8.8% (ie, those scoring above the cut off for BDD on the BDDQ). Over half (52%) of all respondents reported concerns about the attractiveness of their body parts, and of those expressing such concerns, 66% were preoccupied with these thoughts. Only 3% of all respondents opted for cosmetic surgery because of these concerns, and most of those individuals (69%) had only one surgery. Nearly 9% of all respondents reported that these concerns affected their relationships with family and friends. Almost 15% of all participants spent an hour or more each day thinking about these concerns. Patients who reported a history of depression were 3.8 times more likely to have BDD. Other variables included in the model predicting high BDD scores (eg, age, job status, and marital status) did not achieve statistical significance. Conclusion: Significant symptoms of BDD (based on the BDDQ) are not uncommon among the general population of Jeddah, Saudi Arabia. Risk factors for this condition were female gender, younger age, being unmarried, and in bivariate and multivariate analyses, history of depression and female gender. These findings underscore the need for increased awareness by clinicians of this disorder, particularly when treating patients with depressive disorder, particularly among women.

Nonalcoholic Fatty Liver Disease and Fibrosis Risk in Patients With Obstructive Sleep Apnea: A Retrospective Analysis.

Objectives Obstructive sleep apnea (OSA) and nonalcoholic fatty liver disease (NAFLD) are prevalent and commonly associated conditions. We aimed to estimate the prevalence of NAFLD and identify liver fibrosis risk using noninvasive scoring methods in a cohort of patients with OSA. Methodology In this retrospective study of patients with confirmed OSA, patients who underwent abdominal ultrasonography were recruited. The primary outcome was the prevalence of suspected NAFLD (steatosis on ultrasound and/or elevated alanine transaminase [ALT]). The secondary outcomes included the prevalence and predictors of liver fibrosis risk as assessed by the NAFLD fibrosis score (NFS) and fibrosis-4 (FIB-4) score. Results A total of 133 patients fulfilled the study inclusion criteria. The average age was 49.8±15.1 years, and 57.1% were females. The average BMI was 37.3±14.5. According to the apnea-hypopnea index (AHI) scores, 37.9%, 29.6%, and 32.6% of participants had mild (5-14), moderate (15-29), and severe (>=30) OSA, respectively. Radiologically defined NAFLD was detected in 44.4% of the participants, and elevated liver enzymes were detected in 63.9% of the patients. High NFS and FIB-4 scores were recorded in 9% and 3.8% of the patients, respectively. According to logistic regression analysis, age and BMI significantly predicted high NFS scores. Conclusion NAFLD appears to be common among OSA patients. Age and obesity, but not OSA severity, predicted high liver fibrosis risk as assessed by noninvasive scoring systems.

Perception of surgical treatments for obstructive sleep apnea among sleep medicine physicians: A cross-sectional study.

BACKGROUND: Obstructive sleep apnea (OSA) is a common sleep disorder associated with significant morbidities and mortality if untreated. Continuous positive airway pressure is the gold standard treatment for OSA, but poor adherence significantly limits its use. However, there is evidence to support the effectiveness of surgical treatments for OSA. OBJECTIVES: This study aimed to assess the experience of sleep physicians in Saudi Arabia in treating OSA using surgical options. MATERIALS AND METHODS: This cross-sectional study featured an electronic survey that was sent to all sleep physicians across the Kingdom of Saudi Arabia between January 2018 and March 2018. The questionnaire contained questions on the demographics of the physicians and the types of surgical referral for patients with OSA. RESULTS: Twenty-six physicians completed the questionnaire. More than two-thirds of the physicians preferred to refer their patients to otolaryngologists (69.23%), while the remainder preferred to refer their patients to oral and maxillofacial surgeons (23.07%). More than half of the physicians indicated that maxillomandibular advancement (MMA) was the most effective surgical procedure (53.8%), followed by adenotonsillectomy (19.2%), then uvulopalatopharyngoplasty (UPPP) (11.5%). Four physicians (15.4%) chose "none" as the best answer. More participants indicated that the benefits outweighed the risks for MMA (53.84%) than for UPPP (19.23%). CONCLUSION: Based on the opinions of sleep physicians in Saudi Arabia, MMA is the best surgical option for the treatment of moderate to severe OSA. Otolaryngologists are the preferred surgeons because they are more available than oral and maxillofacial surgeons physicians, who are scarce in Saudi Arabia.

Echocardiographic and Clinical Correlates of Ejection Fraction Among 2000 Patients with Heart Failure in Western Saudi Arabia.

INTRODUCTION: Heart failure (HF) affects about 320,000 Saudi individuals and is associated with a considerable negative impact on the patients' quality of life. In literature, there is a lack of data about the echocardiographic abnormalities of HF patients in Saudi Arabia. AIM OF WORK: To describe the echocardiographic findings of HF patients in Western Saudi Arabia. METHODOLOGY: This was a retrospective record review study conducted on 2000 patients with chronic HF in Saudi Arabia. Demographic, clinical and echocardiographic data were collected and compared among patients with HF with reduced ejection fraction (HFrEF), ie, EF≤40%; HF with mid-range EF (HFmrEF), ie, EF=41-49%; and HF with preserved EF (HFpEF), ie, EF≥50%. RESULTS: Among the 2000 patients studied, females constituted 46.3% of the sample. About 52% of females had HFpEF, whilst 70% of males had HFrEF (p<0.0001). Diastolic dysfunction occurred in 98% of HFpEF versus 78% of HFrEF (p<0.0001). Patients with HFrEF had higher left-ventricular diastolic (LVd) volume (1536 versus 826), higher left-ventricular systolic (LVs) volume (1660 vs 772), higher left atrial volume (1344 vs 875), higher aortic root dimension (1144 vs 929) and lower fractional shortening (FS) (267 vs 1213) than patients with HFpEF (p<0.0001). CONCLUSION: HFpEF was more common among females and was associated with higher rates of diastolic dysfunction and higher FS. HFrEF was prevalent among males and associated with higher LVd, LVs, left atrium volume and aortic root dimensions.

Use of Electronic Entertainment and Communication Devices Among a Saudi Pediatric Population: Cross-Sectional Study.

BACKGROUND: Excessive use of various electronic entertainment and communication devices, particularly among children, has been associated with increased behavioral problems. Despite children's escalating use of these devices, parents' awareness about the impact thereof is still lacking. OBJECTIVE: The objective of this study was to assess the use of electronic entertainment and communication devices among children attending a health care facility in Jeddah, Saudi Arabia, as well as the parental impression regarding the impact of electronic devices use on the behavior of their child. METHODS: A focused 15-item questionnaire was designed for this cross-sectional study involving mothers of children attending the Well Baby Clinic of King Abdulaziz University Hospital, Jeddah, Saudi Arabia from July 1, 2016 to November 30, 2016. RESULTS: This study included 190 mothers. The mean ages of the children, mothers, and fathers were 7.3 (SD 3.5), 35 (SD 6.5), and 43 (SD 8.3) years, respectively. Most children were of Saudi Arabian nationality (106/190, 55.8%). The most used device in this study was television (154/190, 81.0%), followed by mobile phones (134/190, 70.5%), and tablets (116/190, 61.0%). Computers were the least used device in this study (59/190, 31.0%). In total, 24.7% (47/190) of children in this study used electronic entertainment and communication devices for more than 4 hours per day. Most mothers (129/190, 67.9%) felt that their child spends too much time on electronic devices. Hyperactivity or behavioral problems were reported by 20.0% (38/190) of mothers in this study. Children spending longer hours on electronic devices were much more likely to be perceived to suffer from hyperactivity or behavioral problems (P=.01). CONCLUSIONS: Parental awareness is necessary to counteract the harmful effects of using electronic devices for a prolonged period. Parents require help to cope with this problem effectively.

mTOR Regulates Endocytosis and Nutrient Transport in Proximal Tubular Cells.

Renal proximal tubular cells constantly recycle nutrients to ensure minimal loss of vital substrates into the urine. Although most of the transport mechanisms have been discovered at the molecular level, little is known about the factors regulating these processes. Here, we show that mTORC1 and mTORC2 specifically and synergistically regulate PTC endocytosis and transport processes. Using a conditional mouse genetic approach to disable nonredundant subunits of mTORC1, mTORC2, or both, we showed that mice lacking mTORC1 or mTORC1/mTORC2 but not mTORC2 alone develop a Fanconi-like syndrome of glucosuria, phosphaturia, aminoaciduria, low molecular weight proteinuria, and albuminuria. Interestingly, proteomics and phosphoproteomics of freshly isolated kidney cortex identified either reduced expression or loss of phosphorylation at critical residues of different classes of specific transport proteins. Functionally, this resulted in reduced nutrient transport and a profound perturbation of the endocytic machinery, despite preserved absolute expression of the main scavenger receptors, MEGALIN and CUBILIN. Our findings highlight a novel mTOR-dependent regulatory network for nutrient transport in renal proximal tubular cells.