scholarly journals Therapeutic Effect of Adding Magnesium Sulfate in Treatment of Organophosphorus Poisoning

2018 ◽  
Vol 6 (11) ◽  
pp. 2051-2056 ◽  
Author(s):  
Fatemeh Jamshidi ◽  
Arash Yazdanbakhsh ◽  
Mohammad Jamalian ◽  
Peyman Khademhosseini ◽  
Koroosh Ahmadi ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Magnesium Sulfate ◽  
Arterial Oxygen Saturation ◽  
Hospital Length Of Stay ◽  
Arterial Oxygen ◽  
Control Group ◽  
Organophosphate Poisoning ◽  
Case Group ◽  
Average Hospital ◽  
The Mean

BACKGROUND: In recent years, the prevalence of poisoning has increased dramatically due to population growth and access to drugs and toxins. Today poisoning is one of the important reasons for visiting hospitals. AIM: The present study aimed to investigate the effect of magnesium sulfate on organophosphorous toxicity. METHODS: Patients who had inclusion criteria in the study were randomly assigned to one of two groups (control group or case group) by an emergency medicine specialist. Patients' data including age, sex, ECG, vital signs, arterial oxygen saturation were recorded for patients. Patients in the case group (40 subjects) received 2 mg magnesium sulfate 50%, while the control group (40 subjects) received 100 cc normal saline (as placebo) as an intravenous infusion RESULTS: The distribution of gender in the two groups of patients was the same. Also, the mean age, Stature and weight of patients were similar in both groups. In the group receiving magnesium sulfate, diastolic blood pressure was lower when compared with another group, at 0 and 2 hours after intervention. Moreover, the mean of systolic blood pressure in both groups was determined to be the same at all hours. Furthermore, the heart rate in the group receiving sulfate was lower as compared to the control group for 8 hours, 16 and 24 hours after intervention. CONCLUSION: The use of magnesium sulfate in organophosphate poisoning reduces therapeutic costs an average hospital length of stay and mortality compared to those who did not receive magnesium sulfate.

scholarly journals Evaluation of Nitric Oxide Concentrations in Preeclampsia and Normal Pregnancy

2020 ◽  
Vol 32 (2) ◽  
pp. 60-66
Author(s):  
Salma Akter ◽  
Firoza Begum ◽  
Sharmin Abbasi
Keyword(s):  
Nitric Oxide ◽  
Blood Pressure ◽  
Serum Creatinine ◽  
Serum Creatinine Level ◽  
Creatinine Level ◽  
Normal Pregnancy ◽  
Control Group ◽  
Case Group ◽  
Nitrite Level ◽  
The Mean

During pregnancy Nitric oxide is one of the most important relaxing factors for myometrium and also in the control of blood flow in uterus and placenta. Nitric oxide is generated by endothelial type II nitric oxide synthase (NOS) and acts as a vasodilator. Objective:To investigate the level of nitric oxide (NO) production in pregnancies complicated by preeclampsia and in normal pregnancy. Materials and Methods: A case control study was undertaken in Department of Gynaecology and Obstetrics of Bangabandhu Sheikh Mujib Medical University (BSMMU), from january to july 2014. The study population was pregnant women having preeclampsia and normal pregnancy who attended the OPD Department of Obstetrics and Gynecology in BSMMU between 29 to 40 weeks of gestation. As because of transient and volatile nature of nitric oxide, it was unsuitable to measure the nitric oxide level by conventional method. However, two stable break down product, nitrate (NO3 -) and nitrate (NO2 -) could be easily detected by sprectophototric means. Nitrate (NO2 -) was first converted to Nitrite (NO3 -) by reduction process using cadmium. Then concentration was measured by using Griess reagent in UV sprectophototric machine. This procedure was done in the Biochemistry Department, Dhaka University. Results: The mean nitrite level was found 18.37}3.64 mol/L in case group and 25.57}2.11mol/ L in control group, which was significantly (p<0.05) higher in control group. The mean serum creatinine level was found 1.19}0.28 mg/dl in case group and 0.65}0.1 mg/dl in control group. The mean serum creatinine level was significantly (p<0.05) higher in case groups. Nitrite level had no correlation with onset of hypertension (r=-0.006; p=0.966), onset of proteinuria (r=0.071; p=0.623), systolic blood pressure (r=0.012; p=0.933), diastolic blood pressure (r=-0.159; p=0.269) and urine protein (r=0.047, p=0.748). Conclusion: As pregnancy progressed there was a decrease in plasma nitric oxide levels in preeclampsia. Urine uric acid to creatinine ratio increased with the decrease in nitric oxide levels and can be used as a marker for preeclampsia. Bangladesh J Obstet Gynaecol, 2017; Vol. 32(2) : 60-66

scholarly journals The Effects of Magnesium Sulfate with Lidocaine for Infraclavicular Brachial Plexus Block for Upper Extremity Surgeries

2020 ◽  
Vol 15 (01) ◽  
pp. e33-e39 ◽  
Author(s):  
Siavash Beiranvand ◽  
Arash Karimi ◽  
Majid Haghighat Shoar ◽  
Maryam Baghizadeh Baghdashti
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Postoperative Pain ◽  
Magnesium Sulfate ◽  
Normal Saline ◽  
Motor Block ◽  
Control Group ◽  
Case Group ◽  
Hemodynamic Parameters ◽  
Infraclavicular Block

Abstract Background An addition of analgesic to anesthetic agents is likely to increase the effects of anesthesia and reduce associated adverse outcomes. Several adjuvants are studied in this regard. The aim of this study is to investigate the effects of adding a magnesium adjunct to lidocaine for the induction of infraclavicular block. Methods Patients referred to Shohada Ashayer Hospital, Khorramabad, for wrist and hand surgery were enrolled in this study. The intervention/case group included patients who received 18 mL lidocaine (2%) + 2 mL magnesium sulfate (50%), 10 mL normal saline; control group: 18 mL lidocaine (2%) + 12 mL of normal saline. After the induction of ultrasound-guided infraclavicular block, parameters such as duration of reach with respect to complete sensory and motor block, hemodynamic parameters (hypotension and bradycardia), and postoperative pain, using visual analogue scale criteria, were measured. The obtained data were analyzed using a Bayesian path analysis model. Results A total of 30 patients were included in each group. In the case group, sensory and motor block was achieved for 12.136 ± 4.96 and 13 ± 3.589 minutes more than those in the control group. The duration of sedation and immobilization was 2.57 ± 0.764 minute and 4.66 ± 0.909 minutes lengthier in the case group. Regarding the hemodynamic parameters, blood pressure was 0.217 ± 5.031 and 1.59 ± 5.14 units lower in the case group, immediately following the block and the surgery. Similarly, heart rate was 0.776 ± 4.548 and 0.39 ± 3.987 units higher in the case group, after 30 minutes and 2 hours of the procedure. A decrease in the pain was seen at 8, 10, and 12 hours after the surgery, as compared with the control group. An addition of magnesium to lidocaine for infraclavicular block resulted in a significantly longer sedation and immobilization period and decreased postoperative pain at 12 hours. Conclusion Heart rate and blood pressure did not decrease significantly in the case group. It can be concluded that addition of magnesium sulfate to lidocaine can produce better anesthetic and analgesic outcomes with low-to-no adverse effects.

scholarly journals Association of Serum C-reactive Protein in Preeclampsia and its Effect on Fetal Birth Weight – A Case Control Study

2017 ◽  
Vol 31 (2) ◽  
pp. 75-80 ◽  
Author(s):  
Shahanaj Sharmin ◽  
Shahanara Chy ◽  
Diadrul Alam ◽  
Nasreen Banu ◽  
Fahmida Rashid ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Birth Weight ◽  
Pregnant Women ◽  
Case Control Study ◽  
Control Group ◽  
Case Group ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
The Mean ◽  
Control Study

Objective(s): The aim of this study was to evaluate the association of serum C-reactive protein (CRP) in preeclampsia (PE) and its effect on fetal birth weight.Materials and methods: This case control study was conducted in Chittagong Medical College Hospital, Bangladesh, from July 2013 to June 2014. Study population was pregnant women of third trimester with preeclampsia (case group) and normal blood pressure (control group). The maternal serum C-reactive protein (CRP) levels were measured by immune turbidometric assay between 32 weeks to term. The women were divided into three groups: mild PE, severe PE (according to ACOG criteria) and normal healthy group. The value of CRP and its correlation with birth weight was compared between groups.Results: One hundred and fifty (150) pregnant women were analyzed. Among them 50 were case and 100 control. There was no difference between age of the patients of both groups. The mean systolic blood pressure was 148.40 ± 12.35 mm Hg in case and 122.15 ± 6.44 mmHg in control group. The mean diastolic blood pressure was 100.00 ± 9.74 mmHg in case and 74.05 ± 5.97 mmHg for the control. The systolic and diastolic blood pressure was significantly higher in preeclamptic group (P < 0.000). C-reactive protein was 10.28 ± 7.25 mg/ mL in mild PE and 10.94 ± 6.32 mg/mL in severe PE and 3.45 ± 1.71 mg/mL in normotensive group, which was significantly higher in case than control group (P = 0.000). Preeclamptic women delivered at a significantly shorter gestational age than normal pregnant women. Mean gestational age during delivery for the case group and control group was 39.02 ± 1.6 and 39.58 ± 0.8 weeks respectively. Mean birth weight in PE (2.52 ± 0.42 kg) was significantly lower than normal pregnancies (2.88 ± 0.29 kg). The sensitivity and specificity of CRP were 68% and 98% respectively. Multiple regression analysis showed that there is a strong association between CRP levels and PE and birth weight.Conclusion: This small study showed that in case group CRP was raised in 68% cases which is much higher in comparison to healthy control group where CRP was high only in 2% cases. High CRP has association with low birth weight. Therefore, CRP may be used as cost effective investigation to identify the risk of preeclampsia and its effect on fetal birth weight.Bangladesh J Obstet Gynaecol, 2016; Vol. 31(2) : 75-80

scholarly journals Chewing ability and desaturation during chewing in patients with COPD

2019 ◽  
Vol 89 (3) ◽  
Author(s):  
Takeshi Terashima ◽  
Takahiro Nakajima ◽  
Tatsu Matsuzaki ◽  
Eri Iwami ◽  
Takeo Shibui ◽  
...  
Keyword(s):  
Arterial Oxygen Saturation ◽  
Nutrition Status ◽  
Arterial Oxygen ◽  
Control Group ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Gum Chewing ◽  
Copd Patients ◽  
Chewing Ability ◽  
The Mean

Chewing ability is essential to maintain nutrition status and can be associated with oral conditions, sarcopenia, and lung function in patients with chronic obstructive pulmonary disease (COPD). Herein, our pilot study investigated the chewing ability and degree of desaturation during chewing in patients with COPD (n = 41) and control subjects (n = 22). Subjects chewed a color-changing chewing gum for 1 minute and chewing ability was assessed by the color of the chewed gum, which was scored from 1 (very poor) to 5 (very good). Arterial oxygen saturation (SpO2) was monitored using a pulse oximeter and the difference in SpO2 was determined by comparison between before and during chewing. The mean color score of the chewed gum was lower in the COPD group than in the control group (3.1±0.7 vs 4.2±0.9, p<0.0001). Muscle mass loss (p<0.05), <20 remaining teeth (p<0.005), and COPD (p<0.001) were risk factors for poor chewing ability. The mean SpO2 decreased by 0.78±1.46% during gum chewing for 1 min. The mean SpO2 during gum chewing (95.1±2.4%) was lower than before gum chewing (95.9±1.7%) (p<0.05). The reduction of SpO2 was greater in COPD patients who had fewer remaining teeth (p<0.05). COPD patients with SpO2 reduction >4% during the 6-minute walk test showed greater reduction during gum chewing (p<0.05). Our results suggest that COPD patients with fewer remaining teeth exhibit poor chewing ability and greater desaturation during chewing.

Effect of Perioperative Lignocaine Infusion on Postoperative Pain in Patients Undergoing Laparoscopic Cholecystectomy

2021 ◽  
Vol 15 (8) ◽  
pp. 1814-1816
Author(s):  
Saadia Khaleeq ◽  
Kiran Riaz Khan ◽  
Muhammad Azam ◽  
Abaid-Ur- Rehman ◽  
Muhammad Usman Jahangir ◽  
...  
Keyword(s):  
Laparoscopic Cholecystectomy ◽  
Postoperative Pain ◽  
General Anesthesia ◽  
Pain Score ◽  
Arterial Oxygen Saturation ◽  
Arterial Oxygen ◽  
Control Group ◽  
Lidocaine Group ◽  
Arterial Blood ◽  
The Mean

Background: Pain is a common complaint of patients after surgery. Different techniques or medications including local anesthetics infiltration, non-steroidal anti-inflammatory drugs or opioids have been used for postoperative analgesia. Lidocaine is an amide local anesthetic agent that works by influencing the complex phenomenon of pain. Aim: To compare the mean pain score with intraoperative lidocaine versus control in patients undergoing laparoscopic cholecystectomy under general anesthesia. Methods: 350 patients aged 20-60 years of either sex scheduled for laparoscopic cholecystectomy were included in the study. Patients with allergy to lidocaine; patients with neuromuscular disease, endocrine or metabolic disorder and pregnant patients were excluded from study. Patients were randomly divided in two groups by using lottery method after taking informed consent. On arrival to the operating room, monitor was attached to display continuous ECG, mean arterial blood pressure, and arterial oxygen saturation. Results: In lidocaine group, the mean age of patients was 39.93±11.56years. In control group, the mean age of patients was 37.93±11.83years. In lidocaine group, there were 91 (52%) males and 84 (48%) females. In control group, there were 77 (44%) males and 98 (56%) females. In lidocaine group, the mean BMI of patients was 26.66±4.81kg/m2. In control group, the mean BMI of patients was 26.77±4.76kg/m2. In lidocaine group, the mean pain score of patients was 1.00±0.84. In control group, the mean pain score of patients was 2.39±1.10. The difference was significant (p<0.05). Conclusion: Thus lidocaine is found to be more effective in reducing postoperative pain than control. Keywords: General anesthesia, laparoscopic cholecystectomy, lidocaine, postoperative pain.

Abstract 14937: Evaluation of Biventricular Functions in Patients With Covid-19 Using Speckle Tracking Echocardiography

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Omer F Baycan ◽  
Hasan Ali A Barman ◽  
Adem Atici ◽  
Mustafa A Tatlisu ◽  
furkan bolen ◽  
...  
Keyword(s):  
Hospital Mortality ◽  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Speckle Tracking Echocardiography ◽  
Arterial Oxygen Saturation ◽  
Left Ventricular ◽  
Arterial Oxygen ◽  
Control Group ◽  
Severe Group ◽  
The Mean

Introduction: A new infectious outbreak sustained by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is now spreading all around the world. The aim of this study was to evaluate the prognostic value of left ventricular global longitudinal strain (LV-GLS) and right ventricular longitudinal strain (RV-LS) in patients with coronavirus disease 2019 (COVID-19). Hypothesis: As some studies have shown that COVID-19 could affect the cardiovascular system due to the capability of pathogenity of the virus, biventricular functions could be affected in the tissue level even though the routine evaluations of the heart functions seem normal. Methods: In this prospective, single-center study, data were gathered from patients treated for COVID-19, who had biventricular systolic function and no history of coronary artery disease. Two-dimensional echocardiography (2-DE) and speckle tracking echocardiography (STE) images were obtained for all patients. Patients were divided into three groups: those with severe COVID-19 infection, those with non-severe COVID-19 infection, and those without COVID-19 infection (the control group). Data regarding clinical characteristics and laboratory findings were obtained from electronic medical records. The primary endpoint was in-hospital mortality. Results: A total of 100 patients hospitalized for COVID-19 were included in this study. The mean age of the severe group (n = 44) was 59.1 ± 12.9, 40% of whom were male. The mean age of the non-severe group (n = 56) was 53.7 ± 15.1, 58% of whom were male. Of these patients, 22 died in the hospital. In patients in the severe group, LV-GLS and RV-LS were decreased compared to patients in the non-severe and control groups (LV-GLS: -14.5 ± 1.8 vs. -16.7 ± 1.3 vs. -19.4 ± 1.6, respectively [p < 0.001]; RV-LS: -17.2 ± 2.3 vs. -20.5 ± 3.2 vs. -27.3 ± 3.1, respectively [p < 0.001]). The presence of cardiac injury, D-dimer, arterial oxygen saturation (SaO2), LV-GLS (OR:1.63, 95% confidence interval [CI] 1.08-2.47; p = 0.010) and RV-LS (OR:1.55, 95% CI 1.07-2.25; p = 0.019) were identified as independent predictors of mortality via multivariate analysis. Conclusions: LV-GLS and RV-LS are independent predictors of in-hospital mortality in patients with COVID-19.

scholarly journals Changes in Serum Lipid in First Trimester of Pregnancy

2013 ◽  
Vol 25 (1) ◽  
pp. 25-27
Author(s):  
THJ Moonmoon ◽  
K Begum ◽  
M Amanullah ◽  
S Rabeya ◽  
MA Bari
Keyword(s):  
Blood Pressure ◽  
Diastolic Blood Pressure ◽  
Serum Lipid ◽  
First Trimester ◽  
Cross Sectional Study ◽  
Control Group ◽  
Case Group ◽  
Cross Sectional ◽  
First Trimester Of Pregnancy ◽  
The Mean

A cross-sectional study was conducted in the department of Obstetrics & Gynaecology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka to determine the changes in serum lipid in 1st trimester of pregnancy over a period I year. A total of 91 subjects (60 women at first trimester of pregnancy assigned to case and 31 nonpregnant women with regular menstruation assigned to control) were included in the study. The mean age was significantly higher in control group than in case group (27.0± 4.3vs 24.4± 3.6 years respectively, p = 0.002). Lower socioeconomic class was predominance in case group (58.3%) and middle class (53.7%) in control group. The mean systolic and diastolic blood pressure was significantly higher in case group compared to control group. About 12% of patients had low HDL compared to 4.9% of controls (p=0.240). Raised LDL and raised triglycerides were found in 3.3% and 5% of the cases respectively while none of the control group had raised LDL and triglyceride (p = 0.350 and p = 0.25 respectively). The systolic and diastolic blood pressure was positively correlated with total cholesterol and HDL. However, LDL and triglyceride exhibit negative linear relationship in the both systolic and diastolic blood pressure. From this study, it can be concluded that pregnant mothers in their trimester had slightly altered serum lipids compared to their nonpregnant counterpart. DOI: http://dx.doi.org/10.3329/medtoday.v25i1.16065 Medicine Today 2013 Vol.25(1): 25-27

Psychophysiological Responses of Pilots in Hypoxia Training at 7000 and 7500 m

2020 ◽  
Vol 91 (10) ◽  
pp. 785-789
Author(s):  
Dongqing Wen ◽  
Lei Tu ◽  
Guiyou Wang ◽  
Zhao Gu ◽  
Weiru Shi ◽  
...  
Keyword(s):  
Heart Rate ◽  
Psychomotor Performance ◽  
Physiological Responses ◽  
Arterial Oxygen Saturation ◽  
Arterial Oxygen ◽  
Awareness Training ◽  
Similar Frequency ◽  
Psychophysiological Responses ◽  
The Mean ◽  
Training Protocol

INTRODUCTION: We compared the physiological responses, psychomotor performances, and hypoxia symptoms between 7000 m and 7500 m (23,000 and 24,600 ft) exposure to develop a safer hypoxia training protocol.METHODS: In altitude chamber, 66 male pilots were exposed to 7000 and 7500 m. Heart rate and arterial oxygen saturation were continuously monitored. Psychomotor performance was assessed using the computational task. The hypoxic symptoms were investigated by a questionnaire.RESULTS: The mean duration time of hypoxia was 323.0 56.5 s at 7000 m and 218.2 63.3 s at 7500 m. The 6-min hypoxia training was completed by 57.6% of the pilots and 6.1% of the pilots at 7000 m and at 7500 m, respectively. There were no significant differences in pilots heart rates and psychomotor performance between the two exposures. The Spo2 response at 7500 m was slightly severer than that at 7000 m. During the 7000 m exposure, pilots experienced almost the same symptoms and similar frequency order as those during the 7500 m exposure.CONCLUSIONS: There were concordant symptoms, psychomotor performance, and very similar physiological responses between 7000 m and 7500 m during hypoxia training. The results indicated that 7000-m hypoxia awareness training might be an alternative to 7500-m hypoxia training with lower DCS risk and longer experience time.Wen D, Tu L, Wang G, Gu Z, Shi W, Liu X. Psychophysiological responses of pilots in hypoxia training at 7000 and 7500 m. Aerosp Med Hum Perform. 2020; 91(10):785789.

Outcomes of the Extracardiac Fontan Procedure Using Cardiopulmonary Bypass: Early Results

2014 ◽  
Vol 17 (3) ◽  
pp. 173 ◽  
Author(s):  
Murat Ugurlucan ◽  
Eylem Yayla Tuncer ◽  
Fusun Guzelmeric ◽  
Eylul Kafali ◽  
Omer Ali Sayin ◽  
...  
Keyword(s):  
Cardiopulmonary Bypass ◽  
Fontan Procedure ◽  
Fontan Operation ◽  
Arterial Oxygen Saturation ◽  
Vena Cava ◽  
Arterial Oxygen ◽  
Shunt Operation ◽  
Early Results ◽  
The Mean ◽  
Extracardiac Fontan

<p><strong>Background</strong>: Although the avoidance of cardiopulmonary bypass during the Fontan procedure has potential advantages, using cardiopulmonary bypass during this procedure has no adverse effects in terms of morbidity and mortality rates. In this study, we assessed the postoperative outcomes of our first 9 patients who have undergone extracardiac Fontan operation by the same surgeon using cardiopulmonary bypass.</p><p><strong>Methods</strong>: Between September 2011 and April 2013,  9 consecutive patients (3 males and 6 females) underwent extra-cardiac Fontan operation. All operations were performed under cardiopulmonary bypass at normothermia by the same surgeon.  The age of patients ranged between 4 and 17 (9.8 ± 4.2) years. Previous operations performed on these patients were modified Blalock-Taussig shunt procedure in 2 patients, bidirectional cavopulmonary shunt operation in 6 patients, and pulmonary arterial banding in 1 patient. Except 2 patients who required intracardiac intervention, cross-clamping was not applied. In all patients, the extracardiac Fontan procedure was carried out by interposing an appropriately sized tube graft between the infe-rior vena cava and right pulmonary artery.</p><p><strong>Results</strong>: The mean intraoperative Fontan pressure and transpulmonary gradient were 12.3 ± 2.5 and 6.9 ± 2.2 mm Hg, respectively. Intraoperative fenestration was not required. There was no mortality and 7 patients were discharged with-out complications. Complications included persistent pleural effusion in 1 patient and a transient neurological event in 1 patient. All patients were weaned off mechanical ventila-tion within 24 hours. The mean arterial oxygen saturation increased from 76.1% ± 5.3% to 93.5% ± 2.2%. All patients were in sinus rhythm postoperatively. Five patients required blood and blood-product transfusions. The mean intensive care unit and hospital stay periods were 2.9 ± 1.7 and 8.2 ±  1.9 days, respectively.</p><p><strong>Conclusions</strong>: The extracardiac Fontan operation per-formed using cardiopulmonary bypass provides satisfactory results in short-term follow-up and is associated with favor-able postoperative hemodynamics and morbidity rates.</p>

scholarly journals Massive haemorrhagic complications of ruptured pulmonary arteriovenous malformations: outcomes from a 12 years’ retrospective study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Xu Ma ◽  
Bing Jie ◽  
Dong Yu ◽  
Ling-Ling Li ◽  
Sen Jiang
Keyword(s):  
Arteriovenous Malformations ◽  
Arterial Oxygen Saturation ◽  
Arterial Oxygen ◽  
Hereditary Haemorrhagic Telangiectasia ◽  
Pulmonary Arteriovenous Malformations ◽  
Imaging Data ◽  
Peripheral Lung ◽  
Life Threatening ◽  
The Mean

Abstract Background The life-threatening haemorrhagic complications of pulmonary arteriovenous malformations (PAVMs) are extremely rare, and only described in isolated cases. This study was designed to comprehensively investigate management of ruptured PAVMs. Methods We retrospectively assessed clinical and imaging data of ruptured PAVMs to summarize incidence, clinical characteristics, and outcomes following embolisation between January 2008 and January 2021. Results Eighteen of 406 (4.4%) patients with PAVMs developed haemorrhagic complications. Twelve of 18 patients were clinically diagnosed with hereditary haemorrhagic telangiectasia (HHT). Haemorrhagic complications occurred with no clear trigger in all cases. Eight of 18 patients (44.4%) were initially misdiagnosed or had undergone early ineffective treatment. 28 lesions were detected, with 89.3% of them located in peripheral lung. Computed tomography angiography (CTA) showed indirect signs to indicate ruptured PAVMs in all cases. Lower haemoglobin concentrations were associated with the diameter of afferent arteries in the ruptured lesions. Successful embolotherapy was achieved in all cases. After embolotherapy, arterial oxygen saturation improved and bleeding was controlled (P < 0.05). The mean follow-up time was 3.2 ± 2.5 years (range, 7 months to 10 years). Conclusions Life threatening haemorrhagic complications of PAVMs are rare, they usually occur without a trigger and can be easily misdiagnosed. HHT and larger size of afferent arteries are major risk factors of these complications. CTA is a useful tool for diagnosis and therapeutic guidance for ruptured PAVMs. Embolotherapy is an effective therapy for this life-threatening complication.

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